alsdec: validate time diff index

If begin is smaller than t, the subtraction 'begin -= t' wraps around, because begin is unsigned. The same applies for end < t. This causes segmentation faults. Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit faf9fe2c22) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/alsdec: Use av_mallocz_array() for chan_data to ensure the arrays never contain random data
2015-04-19 01:27:04 +02:00 · 2015-04-18 20:58:17 +02:00 · 2015-04-18 19:39:48 +02:00 · 2015-04-17 15:57:45 +02:00 · 2015-04-17 15:20:30 +02:00 · 2015-04-17 15:20:30 +02:00
131 changed files with 966 additions and 420 deletions
@@ -1,6 +1,129 @@
 Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.

+version 2.5.6
+- avcodec/atrac3plusdsp: fix on stack alignment
+- ac3: validate end in ff_ac3_bit_alloc_calc_mask
+- aacpsy: avoid psy_band->threshold becoming NaN
+- aasc: return correct buffer size from aasc_decode_frame
+- msrledec: use signed pixel_ptr in msrle_decode_pal4
+- swresample: Allow reinitialization without ever setting channel layouts (cherry picked from commit 80a28c7509a11114e1aea5b208d56c6646d69c07)
+- swresample: Allow reinitialization without ever setting channel counts
+- avcodec/h264: Do not fail with randomly truncated VUIs
+- avcodec/h264_ps: Move truncation check from VUI to SPS
+- avcodec/h264: Be more tolerant to changing pps id between slices
+- avcodec/aacdec: Fix storing state before PCE decode
+- avcodec/h264: reset the counts in the correct context
+- avcodec/h264_slice: Do not reset mb_aff_frame per slice
+- avcodec/h264: finish previous slices before switching to single thread mode
+- avcodec/h264: Fix race between slices where one overwrites data from the next
+- avcodec/h264_refs: Do not set reference to things which do not exist
+- avcodec/h264: Fail for invalid mixed IDR / non IDR frames in slice threading mode
+- h264: avoid unnecessary calls to get_format
+- avcodec/msrledec: restructure msrle_decode_pal4() based on the line number instead of the pixel pointer
+
+
+version 2.5.5:
+- vp9: make above buffer pointer 32-byte aligned.
+- avcodec/dnxhddec: Check that the frame is interlaced before using cur_field
+- avformat/mov: Disallow ".." in dref unless use_absolute_path is set
+- avformat/mov: Check for string truncation in mov_open_dref()
+- avformat/mov: Use sizeof(filename) instead of a literal number
+- eac3dec: fix scaling
+- ac3_fixed: fix computation of spx_noise_blend
+- ac3_fixed: fix out-of-bound read
+- ac3dec_fixed: always use the USE_FIXED=1 variant of the AC3DecodeContext
+- avcodec/012v: redesign main loop
+- avcodec/012v: Check dimensions more completely
+- asfenc: fix leaking asf->index_ptr on error
+- avcodec/options_table: remove extradata_size from the AVOptions table
+- ffmdec: limit the backward seek to the last resync position
+- ffmdec: make sure the time base is valid
+- ffmdec: fix infinite loop at EOF
+- ffmdec: initialize f_cprv, f_stvi and f_stau
+- avformat/rm: limit packet size
+- avcodec/webp: validate the distance prefix code
+- avcodec/rv10: check size of s->mb_width * s->mb_height
+- eamad: check for out of bounds read
+- mdec: check for out of bounds read
+- arm: Suppress tags about used cpu arch and extensions
+- aic: Fix decoding files with odd dimensions
+- avcodec/tiff: move bpp check to after "end:"
+- mxfdec: Fix the error handling for when strftime fails
+- avcodec/opusdec: Fix delayed sample value
+- avcodec/opusdec: Clear out pointers per packet
+- avcodec/utils: Align YUV411 by as much as the other YUV variants
+- vp9: fix segmentation map retention with threading enabled.
+- webp: ensure that each transform is only used once
+- doc/protocols/tcp: fix units of listen_timeout option value, from microseconds to milliseconds
+- fix VP9 packet decoder returning 0 instead of the used data size
+- avformat/flvenc: check that the codec_tag fits in the available bits
+- avcodec/utils: use correct printf specifier in ff_set_sar
+- avutil/imgutils: correctly check for negative SAR components
+- swscale/utils: clear formatConvBuffer on allocation
+- avformat/bit: only accept the g729 codec and 1 channel
+- avformat/bit: check that pkt->size is 10 in write_packet
+- avformat/adxdec: check avctx->channels for invalid values
+- avformat/adxdec: set avctx->channels in adx_read_header
+- Fix buffer_size argument to init_put_bits() in multiple encoders.
+- mips/acelp_filters: fix incorrect register constraint
+- avcodec/hevc_ps: Sanity checks for some log2_* values
+- avcodec/zmbv: Check len before reading in decode_frame()
+- avcodec/h264: Only reinit quant tables if a new PPS is allowed
+- avcodec/snowdec: Fix ref value check
+- swscale/utils: More carefully merge and clear coefficients outside the input
+- avcodec/a64multienc: Assert that the Packet size does not grow
+- avcodec/a64multienc: simplify frame handling code
+- avcodec/a64multienc: fix use of uninitialized values in to_meta_with_crop
+- avcodec/a64multienc: initialize mc_meta_charset to zero
+- avcodec/a64multienc: don't set incorrect packet size
+- avcodec/a64multienc: use av_frame_ref instead of copying the frame
+- avcodec/x86/mlpdsp_init: Simplify mlp_filter_channel_x86()
+- h264: initialize H264Context.avctx in init_thread_copy
+- wtvdec: fix integer overflow resulting in errors with large files
+- avcodec/gif: fix off by one in column offsetting finding
+
+
+version 2.5.4:
+- avcodec/arm/videodsp_armv5te: Fix linking failure with shared libs
+- avcodec/mjpegdec: Skip blocks which are outside the visible area
+- avcodec/h264_slice: ignore SAR changes in slices after the first
+- avcodec/h264_slice: Check picture structure before setting the related fields
+- avcodec/h264_slice: Do not change frame_num after the first slice
+- avutil/opt: Fix type used to access AV_OPT_TYPE_SAMPLE_FMT
+- avutil/opt: Fix types used to access AV_OPT_TYPE_PIXEL_FMT
+- avcodec/h264: Be more strict on rejecting pps/sps changes
+- avcodec/h264: Be more strict on rejecting pps_id changes
+- avcodec/h264_ps: More completely check the bit depths
+- avformat/thp: Check av_get_packet() for failure not only for partial output
+- swscale/utils: Limit filter shifting so as not to read from prior the array
+- avcodec/mpegvideo_motion: Fix gmc chroma dimensions
+- avcodec/mjpegdec: Check number of components for JPEG-LS
+- avcodec/mjpegdec: Check escape sequence validity
+- avformat/mpc8: Use uint64_t in *_get_v() to avoid undefined behavior
+- avformat/mpc8: fix broken pointer math
+- avformat/mpc8: fix hang with fuzzed file
+- avformat/tta: fix crash with corrupted files
+- avcodec/ppc/idctdsp.c: POWER LE support in idct_add_altivec()
+- swscale/input: fix rgba64 alpha non native
+- swscale/input: Fix alpha of YA16 input
+- libavcodec/ppc/mpegvideoencdsp.c: fix stack smashing in pix_norm1_altivec() and pix_sum_altivec()
+- avformat/rmdec: Check for overflow in ff_rm_read_mdpr_codecdata()
+- avformat/mpeg: do not count PES packets inside PES packets during probing
+- hevc: always clip luma_log2_weight_denom
+- rtpdec_h263_rfc2190: Clear the stored bits if discarding buffered data
+- aacenc: correctly check returned value
+- swscale: check memory allocations
+- opt: check memory allocation
+- avformat/utils: check for malloc failure
+- avcodec/flac_parser: fix handling EOF if no headers are found
+- avfilter/vf_framepack: Check and update frame_rate
+- vp8: improve memory allocation checks
+- configure: enable vsx together with altivec for ppc64el
+- avcodec/hevc: Fix handling of skipped_bytes() reallocation failures
+- qpeg: avoid pointless invalid memcpy()
+
+
 version 2.5.3:
 - vp9: fix parser return values in error case
 - ffmpeg: Clear error message array at init.
@@ -1 +1 @@
-2.5.3
+2.5.6
@@ -1635,7 +1635,6 @@ HEADERS_LIST="
    asm_types_h
    cdio_paranoia_h
    cdio_paranoia_paranoia_h
-    CL_cl_h
    dev_bktr_ioctl_bt848_h
    dev_bktr_ioctl_meteor_h
    dev_ic_bt8xx_h
@@ -1761,6 +1760,7 @@ SYSTEM_FUNCS="
 TOOLCHAIN_FEATURES="
    as_dn_directive
    as_func
+    as_object_arch
    asm_mod_q
    attribute_may_alias
    attribute_packed
@@ -4413,7 +4413,7 @@ unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
 EOF
 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

-if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
+if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] || enabled ppc64; then
    if ! enabled bigendian && enabled altivec ;then
        enable vsx
    fi
@@ -4520,6 +4520,11 @@ EOF
    check_as <<EOF && enable as_dn_directive
 ra .dn d0.i16
 .unreq ra
+EOF
+
+    # llvm's integrated assembler supports .object_arch from llvm 3.5
+    [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
+.object_arch armv4
 EOF

    [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
@@ -4756,7 +4761,6 @@ check_func_headers glob.h glob
 enabled xlib &&
    check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext

-check_header cl/cl.h
 check_header direct.h
 check_header dlfcn.h
 check_header dxva.h
@@ -200,7 +200,7 @@ API changes, most recent first:
  Increase FF_INPUT_BUFFER_PADDING_SIZE to 32 due to some corner cases needing
  it

-2014-06-10 - xxxxxxx - lavf 55.43.100 - avformat.h
+2014-06-10 - 5482780 - lavf 55.43.100 - avformat.h
  New field int64_t max_analyze_duration2 instead of deprecated
  int max_analyze_duration.

@@ -224,7 +224,7 @@ API changes, most recent first:
  Add strict_std_compliance and related AVOptions to support experimental
  muxing.

-2014-05-26 - xxxxxxx - lavu 52.87.100 - threadmessage.h
+2014-05-26 - 55cc60c - lavu 52.87.100 - threadmessage.h
  Add thread message queue API.

 2014-05-26 - c37d179 - lavf 55.41.100 - avformat.h
@@ -234,7 +234,7 @@ API changes, most recent first:
  Add av_stream_get_side_data() to access stream-level side data
  in the same way as av_packet_get_side_data().

-2014-05-xx - xxxxxxx - lavu 52.86.100 - fifo.h
+2014-05-20 - 7336e39 - lavu 52.86.100 - fifo.h
  Add av_fifo_alloc_array() function.

 2014-05-19 - ef1d4ee / bddd8cb - lavu 52.85.100 / 53.15.0 - frame.h, display.h
@@ -266,7 +266,7 @@ API changes, most recent first:
 2014-05-11 - 14aef38 / 66e6c8a - lavu 52.83.100 / 53.14.0 - pixfmt.h
  Add AV_PIX_FMT_VDA for new-style VDA acceleration.

-2014-05-xx - xxxxxxx - lavu 52.82.100 - fifo.h
+2014-05-07 - 351f611 - lavu 52.82.100 - fifo.h
  Add av_fifo_freep() function.

 2014-05-02 - ba52fb11 - lavu 52.81.100 - opt.h
@@ -288,10 +288,14 @@ API changes, most recent first:
  Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
  reference-counted frames to encoders.

+2014-04-30 - 617e866 - lavu 52.81.100 - pixdesc.h
+  Add av_find_best_pix_fmt_of_2(), av_get_pix_fmt_loss()
+  Deprecate avcodec_get_pix_fmt_loss(), avcodec_find_best_pix_fmt_of_2()
+
 2014-04-29 - 1bf6396 - lavc 55.60.100 - avcodec.h
  Add AVCodecDescriptor.mime_types field.

-2014-04-29 - xxxxxxx - lavu 52.80.0 - hash.h
+2014-04-29 - b804eb4 - lavu 52.80.100 - hash.h
  Add av_hash_final_bin(), av_hash_final_hex() and av_hash_final_b64().

 2014-03-07 - 8b2a130 - lavc 55.50.0 / 55.53.100 - dxva2.h
@@ -303,7 +307,7 @@ API changes, most recent first:
 2014-04-17 - a8d01a7 / 0983d48 - lavu 53.12.0 / 52.77.100 - crc.h
  Add AV_CRC_16_ANSI_LE crc variant.

-2014-04-XX - xxxxxxx - lavf xx.xx.1xx - avformat.h
+2014-04-15 - ef818d8 - lavf 55.37.101 - avformat.h
  Add av_format_inject_global_side_data()

 2014-04-12 - 4f698be - lavu 52.76.100 - log.h
@@ -383,7 +387,7 @@ API changes, most recent first:
 2014-02-19 - f4c8d00 / 6bb8720 - lavu 52.64.101 / 53.3.1 - opt.h
  Deprecate unused AV_OPT_FLAG_METADATA.

-2014-02-xx - xxxxxxx - lavd 55.10.100 - avdevice.h
+2014-02-16 - 81c3f81 - lavd 55.10.100 - avdevice.h
  Add avdevice_list_devices() and avdevice_free_list_devices()

 2014-02-16 - db3c970 - lavf 55.33.100 - avio.h
@@ -424,7 +428,7 @@ API changes, most recent first:
 2014-01-19 - 1a193c4 - lavf 55.25.100 - avformat.h
  Add avformat_get_mov_video_tags() and avformat_get_mov_audio_tags().

-2014-01-19 - xxxxxxx - lavu 52.63.100 - rational.h
+2014-01-19 - 3532dd5 - lavu 52.63.100 - rational.h
  Add av_make_q() function.

 2014-01-05 - 4cf4da9 / 5b4797a - lavu 52.62.100 / 53.2.0 - frame.h
@@ -31,7 +31,7 @@ PROJECT_NAME           = FFmpeg
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.

-PROJECT_NUMBER         = 2.5.3
+PROJECT_NUMBER         = 2.5.6

 # With the PROJECT_LOGO tag one can specify a logo or icon that is included
 # in the documentation. The maximum height of the logo should not exceed 55
@@ -298,7 +298,7 @@ FFmpeg has a @url{http://ffmpeg.org/ffmpeg-protocols.html#concat,
@code{concat}} protocol designed specifically for that, with examples in the
 documentation.

-A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
+A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate
 video by merely concatenating the files containing them.

 Hence you may concatenate your multimedia files by first transcoding them to
@@ -71,7 +71,7 @@ the HTTP server (configured through the @option{HTTPPort} option), and
 configuration file.

 Each feed is associated to a file which is stored on disk. This stored
-file is used to allow to send pre-recorded data to a player as fast as
+file is used to send pre-recorded data to a player as fast as
 possible when new content is added in real-time to the stream.

 A "live-stream" or "stream" is a resource published by
@@ -253,10 +253,14 @@ Possible flags for this option are:
@item sse4.1
@item sse4.2
@item avx
+@item avx2
@item xop
+@item fma3
@item fma4
@item 3dnow
@item 3dnowext
+@item bmi1
+@item bmi2
@item cmov
@end table
@item ARM
@@ -267,6 +271,13 @@ Possible flags for this option are:
@item vfp
@item vfpv3
@item neon
+@item setend
+@end table
+@item AArch64
+@table @samp
+@item armv8
+@item vfp
+@item neon
@end table
@item PowerPC
@table @samp
@@ -3378,7 +3378,7 @@ Set number overlapping pixels for each block. Since the filter can be slow, you
 may want to reduce this value, at the cost of a less effective filter and the
 risk of various artefacts.

-If the overlapping value doesn't allow to process the whole input width or
+If the overlapping value doesn't permit processing the whole input width or
 height, a warning will be displayed and according borders won't be denoised.

 Default value is @var{blocksize}-1, which is the best possible setting.
@@ -23,7 +23,7 @@ Reduce buffering.

@item probesize @var{integer} (@emph{input})
 Set probing size in bytes, i.e. the size of the data to analyze to get
-stream information. A higher value will allow to detect more
+stream information. A higher value will enable detecting more
 information in case it is dispersed into the stream, but will increase
 latency. Must be an integer not lesser than 32. It is 5000000 by default.

@@ -67,7 +67,7 @@ Default is 0.

@item analyzeduration @var{integer} (@emph{input})
 Specify how many microseconds are analyzed to probe the input. A
-higher value will allow to detect more accurate information, but will
+higher value will enable detecting more accurate information, but will
 increase latency. It defaults to 5,000,000 microseconds = 5 seconds.

@item cryptokey @var{hexadecimal string} (@emph{input})
@@ -1,7 +1,7 @@
@chapter Input Devices
@c man begin INPUT DEVICES

-Input devices are configured elements in FFmpeg which allow to access
+Input devices are configured elements in FFmpeg which enable accessing
 the data coming from a multimedia device attached to your system.

 When you configure your FFmpeg build, all the supported input devices
@@ -1081,8 +1081,8 @@ Set raise error timeout, expressed in microseconds.
 This option is only relevant in read mode: if no data arrived in more
 than this time interval, raise error.

-@item listen_timeout=@var{microseconds}
-Set listen timeout, expressed in microseconds.
+@item listen_timeout=@var{milliseconds}
+Set listen timeout, expressed in milliseconds.
@end table

 The following example shows how to setup a listening TCP connection
@@ -844,7 +844,7 @@ Return 1.0 if @var{x} is +/-INFINITY, 0.0 otherwise.
 Return 1.0 if @var{x} is NAN, 0.0 otherwise.

@item ld(var)
-Allow to load the value of the internal variable with number
+Load the value of the internal variable with number
@var{var}, which was previously stored with st(@var{var}, @var{expr}).
 The function returns the loaded value.

@@ -912,7 +912,7 @@ Compute the square root of @var{expr}. This is equivalent to
 Compute expression @code{1/(1 + exp(4*x))}.

@item st(var, expr)
-Allow to store the value of the expression @var{expr} in an internal
+Store the value of the expression @var{expr} in an internal
 variable. @var{var} specifies the number of the variable where to
 store the value, and it is a value ranging from 0 to 9. The function
 returns the value stored in the internal variable.
@@ -2620,11 +2620,13 @@ static int transcode_init(void)
            enc_ctx->rc_max_rate    = dec_ctx->rc_max_rate;
            enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size;
            enc_ctx->field_order    = dec_ctx->field_order;
-            enc_ctx->extradata      = av_mallocz(extra_size);
-            if (!enc_ctx->extradata) {
-                return AVERROR(ENOMEM);
+            if (dec_ctx->extradata_size) {
+                enc_ctx->extradata      = av_mallocz(extra_size);
+                if (!enc_ctx->extradata) {
+                    return AVERROR(ENOMEM);
+                }
+                memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
            }
-            memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size);
            enc_ctx->extradata_size= dec_ctx->extradata_size;
            enc_ctx->bits_per_coded_sample  = dec_ctx->bits_per_coded_sample;

@@ -38,15 +38,15 @@ static av_cold int zero12v_decode_init(AVCodecContext *avctx)
 static int zero12v_decode_frame(AVCodecContext *avctx, void *data,
                                int *got_frame, AVPacket *avpkt)
 {
-    int line = 0, ret;
+    int line, ret;
    const int width = avctx->width;
    AVFrame *pic = data;
    uint16_t *y, *u, *v;
    const uint8_t *line_end, *src = avpkt->data;
    int stride = avctx->width * 8 / 3;

-    if (width == 1) {
-        av_log(avctx, AV_LOG_ERROR, "Width 1 not supported.\n");
+    if (width <= 1 || avctx->height <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "Dimensions %dx%d not supported.\n", width, avctx->height);
        return AVERROR_INVALIDDATA;
    }

@@ -67,45 +67,45 @@ static int zero12v_decode_frame(AVCodecContext *avctx, void *data,
    pic->pict_type = AV_PICTURE_TYPE_I;
    pic->key_frame = 1;

-    y = (uint16_t *)pic->data[0];
-    u = (uint16_t *)pic->data[1];
-    v = (uint16_t *)pic->data[2];
    line_end = avpkt->data + stride;
+    for (line = 0; line < avctx->height; line++) {
+        uint16_t y_temp[6] = {0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000};
+        uint16_t u_temp[3] = {0x8000, 0x8000, 0x8000};
+        uint16_t v_temp[3] = {0x8000, 0x8000, 0x8000};
+        int x;
+        y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
+        u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
+        v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);

-    while (line++ < avctx->height) {
-        while (1) {
-            uint32_t t = AV_RL32(src);
+        for (x = 0; x < width; x += 6) {
+            uint32_t t;
+
+            if (width - x < 6 || line_end - src < 16) {
+                y = y_temp;
+                u = u_temp;
+                v = v_temp;
+            }
+
+            if (line_end - src < 4)
+                break;
+
+            t = AV_RL32(src);
            src += 4;
            *u++ = t <<  6 & 0xFFC0;
            *y++ = t >>  4 & 0xFFC0;
            *v++ = t >> 14 & 0xFFC0;

-            if (src >= line_end - 1) {
-                *y = 0x80;
-                src++;
-                line_end += stride;
-                y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
-                u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
-                v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+            if (line_end - src < 4)
                break;
-            }

            t = AV_RL32(src);
            src += 4;
            *y++ = t <<  6 & 0xFFC0;
            *u++ = t >>  4 & 0xFFC0;
            *y++ = t >> 14 & 0xFFC0;
-            if (src >= line_end - 2) {
-                if (!(width & 1)) {
-                    *y = 0x80;
-                    src += 2;
-                }
-                line_end += stride;
-                y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
-                u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
-                v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+
+            if (line_end - src < 4)
                break;
-            }

            t = AV_RL32(src);
            src += 4;
@@ -113,15 +113,8 @@ static int zero12v_decode_frame(AVCodecContext *avctx, void *data,
            *y++ = t >>  4 & 0xFFC0;
            *u++ = t >> 14 & 0xFFC0;

-            if (src >= line_end - 1) {
-                *y = 0x80;
-                src++;
-                line_end += stride;
-                y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
-                u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
-                v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+            if (line_end - src < 4)
                break;
-            }

            t = AV_RL32(src);
            src += 4;
@@ -129,18 +122,21 @@ static int zero12v_decode_frame(AVCodecContext *avctx, void *data,
            *v++ = t >>  4 & 0xFFC0;
            *y++ = t >> 14 & 0xFFC0;

-            if (src >= line_end - 2) {
-                if (width & 1) {
-                    *y = 0x80;
-                    src += 2;
-                }
-                line_end += stride;
-                y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
-                u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
-                v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+            if (width - x < 6)
                break;
-            }
        }
+
+        if (x < width) {
+            y = x   + (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
+            u = x/2 + (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
+            v = x/2 + (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+            memcpy(y, y_temp, sizeof(*y) * (width - x));
+            memcpy(u, u_temp, sizeof(*u) * (width - x + 1) / 2);
+            memcpy(v, v_temp, sizeof(*v) * (width - x + 1) / 2);
+        }
+
+        line_end += stride;
+        src = line_end - stride;
    }

    *got_frame = 1;
@@ -210,7 +210,7 @@ OBJS-$(CONFIG_DVVIDEO_DECODER)         += dvdec.o dv.o dvdata.o
 OBJS-$(CONFIG_DVVIDEO_ENCODER)         += dvenc.o dv.o dvdata.o
 OBJS-$(CONFIG_DXA_DECODER)             += dxa.o
 OBJS-$(CONFIG_DXTORY_DECODER)          += dxtory.o
-OBJS-$(CONFIG_EAC3_DECODER)            += eac3dec.o eac3_data.o
+OBJS-$(CONFIG_EAC3_DECODER)            += eac3_data.o
 OBJS-$(CONFIG_EAC3_ENCODER)            += eac3enc.o eac3_data.o
 OBJS-$(CONFIG_EACMV_DECODER)           += eacmv.o
 OBJS-$(CONFIG_EAMAD_DECODER)           += eamad.o eaidct.o mpeg12.o \
@@ -28,6 +28,7 @@
 #include "a64tables.h"
 #include "elbg.h"
 #include "internal.h"
+#include "libavutil/avassert.h"
 #include "libavutil/common.h"
 #include "libavutil/intreadwrite.h"

@@ -65,7 +66,7 @@ static const int mc_colors[5]={0x0,0xb,0xc,0xf,0x1};
 //static const int mc_colors[5]={0x0,0x8,0xa,0xf,0x7};
 //static const int mc_colors[5]={0x0,0x9,0x8,0xa,0x3};

-static void to_meta_with_crop(AVCodecContext *avctx, AVFrame *p, int *dest)
+static void to_meta_with_crop(AVCodecContext *avctx, const AVFrame *p, int *dest)
 {
    int blockx, blocky, x, y;
    int luma = 0;
@@ -78,9 +79,13 @@ static void to_meta_with_crop(AVCodecContext *avctx, AVFrame *p, int *dest)
            for (y = blocky; y < blocky + 8 && y < C64YRES; y++) {
                for (x = blockx; x < blockx + 8 && x < C64XRES; x += 2) {
                    if(x < width && y < height) {
-                        /* build average over 2 pixels */
-                        luma = (src[(x + 0 + y * p->linesize[0])] +
-                                src[(x + 1 + y * p->linesize[0])]) / 2;
+                        if (x + 1 < width) {
+                            /* build average over 2 pixels */
+                            luma = (src[(x + 0 + y * p->linesize[0])] +
+                                    src[(x + 1 + y * p->linesize[0])]) / 2;
+                        } else {
+                            luma = src[(x + y * p->linesize[0])];
+                        }
                        /* write blocks as linear data now so they are suitable for elbg */
                        dest[0] = luma;
                    }
@@ -186,7 +191,6 @@ static void render_charset(AVCodecContext *avctx, uint8_t *charset,
 static av_cold int a64multi_close_encoder(AVCodecContext *avctx)
 {
    A64Context *c = avctx->priv_data;
-    av_frame_free(&avctx->coded_frame);
    av_freep(&c->mc_meta_charset);
    av_freep(&c->mc_best_cb);
    av_freep(&c->mc_charset);
@@ -220,7 +224,7 @@ static av_cold int a64multi_encode_init(AVCodecContext *avctx)
                           a64_palette[mc_colors[a]][2] * 0.11;
    }

-    if (!(c->mc_meta_charset = av_malloc_array(c->mc_lifetime, 32000 * sizeof(int))) ||
+    if (!(c->mc_meta_charset = av_mallocz_array(c->mc_lifetime, 32000 * sizeof(int))) ||
       !(c->mc_best_cb       = av_malloc(CHARSET_CHARS * 32 * sizeof(int)))     ||
       !(c->mc_charmap       = av_mallocz_array(c->mc_lifetime, 1000 * sizeof(int))) ||
       !(c->mc_colram        = av_mallocz(CHARSET_CHARS * sizeof(uint8_t)))     ||
@@ -238,14 +242,6 @@ static av_cold int a64multi_encode_init(AVCodecContext *avctx)
    AV_WB32(avctx->extradata, c->mc_lifetime);
    AV_WB32(avctx->extradata + 16, INTERLACED);

-    avctx->coded_frame = av_frame_alloc();
-    if (!avctx->coded_frame) {
-        a64multi_close_encoder(avctx);
-        return AVERROR(ENOMEM);
-    }
-
-    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
-    avctx->coded_frame->key_frame = 1;
    if (!avctx->codec_tag)
         avctx->codec_tag = AV_RL32("a64m");

@@ -270,10 +266,9 @@ static void a64_compress_colram(unsigned char *buf, int *charmap, uint8_t *colra
 }

 static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-                                 const AVFrame *pict, int *got_packet)
+                                 const AVFrame *p, int *got_packet)
 {
    A64Context *c = avctx->priv_data;
-    AVFrame *const p = avctx->coded_frame;

    int frame;
    int x, y;
@@ -304,7 +299,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    }

    /* no data, means end encoding asap */
-    if (!pict) {
+    if (!p) {
        /* all done, end encoding */
        if (!c->mc_lifetime) return 0;
        /* no more frames in queue, prepare to flush remaining frames */
@@ -317,13 +312,10 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    } else {
        /* fill up mc_meta_charset with data until lifetime exceeds */
        if (c->mc_frame_counter < c->mc_lifetime) {
-            *p = *pict;
-            p->pict_type = AV_PICTURE_TYPE_I;
-            p->key_frame = 1;
            to_meta_with_crop(avctx, p, meta + 32000 * c->mc_frame_counter);
            c->mc_frame_counter++;
            if (c->next_pts == AV_NOPTS_VALUE)
-                c->next_pts = pict->pts;
+                c->next_pts = p->pts;
            /* lifetime is not reached so wait for next frame first */
            return 0;
        }
@@ -334,8 +326,8 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
        req_size = 0;
        /* any frames to encode? */
        if (c->mc_lifetime) {
-            req_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
-            if ((ret = ff_alloc_packet2(avctx, pkt, req_size)) < 0)
+            int alloc_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
+            if ((ret = ff_alloc_packet2(avctx, pkt, alloc_size)) < 0)
                return ret;
            buf = pkt->data;

@@ -351,6 +343,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,

            /* advance pointers */
            buf      += charset_size;
+            req_size += charset_size;
        }

        /* write x frames to buf */
@@ -387,6 +380,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
        pkt->pts = pkt->dts = c->next_pts;
        c->next_pts         = AV_NOPTS_VALUE;

+        av_assert0(pkt->size >= req_size);
        pkt->size   = req_size;
        pkt->flags |= AV_PKT_FLAG_KEY;
        *got_packet = !!req_size;
@@ -425,7 +425,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags)
 * Save current output configuration if and only if it has been locked.
 */
 static void push_output_configuration(AACContext *ac) {
-    if (ac->oc[1].status == OC_LOCKED) {
+    if (ac->oc[1].status == OC_LOCKED || ac->oc[0].status == OC_NONE) {
        ac->oc[0] = ac->oc[1];
    }
    ac->oc[1].status = OC_NONE;
@@ -904,7 +904,7 @@ static int decode_eld_specific_config(AACContext *ac, AVCodecContext *avctx,
        if (len == 15 + 255)
            len += get_bits(gb, 16);
        if (get_bits_left(gb) < len * 8 + 4) {
-            av_log(ac->avctx, AV_LOG_ERROR, overread_err);
+            av_log(avctx, AV_LOG_ERROR, overread_err);
            return AVERROR_INVALIDDATA;
        }
        skip_bits_long(gb, 8 * len);
@@ -165,7 +165,7 @@ static void put_audio_specific_config(AVCodecContext *avctx)
    PutBitContext pb;
    AACEncContext *s = avctx->priv_data;

-    init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
+    init_put_bits(&pb, avctx->extradata, avctx->extradata_size);
    put_bits(&pb, 5, 2); //object type - AAC-LC
    put_bits(&pb, 4, s->samplerate_index); //sample rate index
    put_bits(&pb, 4, s->channels);
@@ -753,10 +753,10 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)

    s->chan_map = aac_chan_configs[s->channels-1];

-    if (ret = dsp_init(avctx, s))
+    if ((ret = dsp_init(avctx, s)) < 0)
        goto fail;

-    if (ret = alloc_buffers(avctx, s))
+    if ((ret = alloc_buffers(avctx, s)) < 0)
        goto fail;

    avctx->extradata_size = 5;
@@ -768,7 +768,8 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
    lengths[1] = ff_aac_num_swb_128[i];
    for (i = 0; i < s->chan_map[0]; i++)
        grouping[i] = s->chan_map[i + 1] == TYPE_CPE;
-    if (ret = ff_psy_init(&s->psy, avctx, 2, sizes, lengths, s->chan_map[0], grouping))
+    if ((ret = ff_psy_init(&s->psy, avctx, 2, sizes, lengths,
+                           s->chan_map[0], grouping)) < 0)
        goto fail;
    s->psypp = ff_psy_preprocess_init(avctx);
    s->coder = &ff_aac_coders[s->options.aac_coder];
@@ -727,7 +727,10 @@ static void psy_3gpp_analyze_channel(FFPsyContext *ctx, int channel,
                    if (active_lines > 0.0f)
                        band->thr = calc_reduced_thr_3gpp(band, coeffs[g].min_snr, reduction);
                    pe += calc_pe_3gpp(band);
-                    band->norm_fac = band->active_lines / band->thr;
+                    if (band->thr > 0.0f)
+                        band->norm_fac = band->active_lines / band->thr;
+                    else
+                        band->norm_fac = 0.0f;
                    norm_fac += band->norm_fac;
                }
            }
@@ -78,6 +78,7 @@ av_cold void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth,
        c->h264_v_loop_filter_luma   = ff_h264_v_loop_filter_luma_neon;
        c->h264_h_loop_filter_luma   = ff_h264_h_loop_filter_luma_neon;
        c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
+        if (chroma_format_idc <= 1)
        c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;

        c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
@@ -137,7 +137,7 @@ static int aasc_decode_frame(AVCodecContext *avctx,
        return ret;

    /* report that the buffer was completely consumed */
-    return buf_size;
+    return avpkt->size;
 }

 static av_cold int aasc_decode_end(AVCodecContext *avctx)
@@ -131,6 +131,9 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
    int band_start, band_end, begin, end1;
    int lowcomp, fastleak, slowleak;

+    if (end <= 0)
+        return AVERROR_INVALIDDATA;
+
    /* excitation function */
    band_start = ff_ac3_bin_to_band_tab[start];
    band_end   = ff_ac3_bin_to_band_tab[end-1] + 1;
@@ -872,7 +872,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
                start_subband += start_subband - 7;
            end_subband    = get_bits(gbc, 3) + 5;
 #if USE_FIXED
-            s->spx_dst_end_freq = end_freq_inv_tab[end_subband];
+            s->spx_dst_end_freq = end_freq_inv_tab[end_subband-5];
 #endif
            if (end_subband   > 7)
                end_subband   += end_subband   - 7;
@@ -939,7 +939,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
                            nblend = 0;
                            sblend = 0x800000;
                        } else if (nratio > 0x7fffff) {
-                            nblend = 0x800000;
+                            nblend = 14529495; // sqrt(3) in FP.23
                            sblend = 0;
                        } else {
                            nblend = fixed_sqrt(nratio, 23);
@@ -243,19 +243,19 @@ typedef struct AC3DecodeContext {
 * Parse the E-AC-3 frame header.
 * This parses both the bit stream info and audio frame header.
 */
-int ff_eac3_parse_header(AC3DecodeContext *s);
+static int ff_eac3_parse_header(AC3DecodeContext *s);

 /**
 * Decode mantissas in a single channel for the entire frame.
 * This is used when AHT mode is enabled.
 */
-void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch);
+static void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch);

 /**
 * Apply spectral extension to each channel by copying lower frequency
 * coefficients to higher frequency bins and applying side information to
 * approximate the original high frequency signal.
 */
-void ff_eac3_apply_spectral_extension(AC3DecodeContext *s);
+static void ff_eac3_apply_spectral_extension(AC3DecodeContext *s);

 #endif /* AVCODEC_AC3DEC_H */
@@ -164,6 +164,7 @@ static void ac3_downmix_c_fixed16(int16_t **samples, int16_t (*matrix)[2],
    }
 }

+#include "eac3dec.c"
 #include "ac3dec.c"

 static const AVOption options[] = {
@@ -28,6 +28,7 @@
 * Upmix delay samples from stereo to original channel layout.
 */
 #include "ac3dec.h"
+#include "eac3dec.c"
 #include "ac3dec.c"

 static const AVOption options[] = {
@@ -541,7 +541,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
    case AV_CODEC_ID_ADPCM_IMA_QT:
    {
        PutBitContext pb;
-        init_put_bits(&pb, dst, pkt_size * 8);
+        init_put_bits(&pb, dst, pkt_size);

        for (ch = 0; ch < avctx->channels; ch++) {
            ADPCMChannelStatus *status = &c->status[ch];
@@ -571,7 +571,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
    case AV_CODEC_ID_ADPCM_SWF:
    {
        PutBitContext pb;
-        init_put_bits(&pb, dst, pkt_size * 8);
+        init_put_bits(&pb, dst, pkt_size);

        n = frame->nb_samples - 1;

@@ -438,8 +438,8 @@ static av_cold int aic_decode_init(AVCodecContext *avctx)
    ctx->mb_width  = FFALIGN(avctx->width,  16) >> 4;
    ctx->mb_height = FFALIGN(avctx->height, 16) >> 4;

-    ctx->num_x_slices = 16;
-    ctx->slice_width  = ctx->mb_width / 16;
+    ctx->num_x_slices = (ctx->mb_width + 15) >> 4;
+    ctx->slice_width  = 16;
    for (i = 1; i < 32; i++) {
        if (!(ctx->mb_width % i) && (ctx->mb_width / i < 32)) {
            ctx->slice_width  = ctx->mb_width / i;
@@ -357,11 +357,15 @@ static av_cold int read_specific_config(ALSDecContext *ctx)

        ctx->cs_switch = 1;

+        for (i = 0; i < avctx->channels; i++) {
+            sconf->chan_pos[i] = -1;
+        }
+
        for (i = 0; i < avctx->channels; i++) {
            int idx;

            idx = get_bits(&gb, chan_pos_bits);
-            if (idx >= avctx->channels) {
+            if (idx >= avctx->channels || sconf->chan_pos[idx] != -1) {
                av_log(avctx, AV_LOG_WARNING, "Invalid channel reordering.\n");
                ctx->cs_switch = 0;
                break;
@@ -1286,8 +1290,16 @@ static int revert_channel_correlation(ALSDecContext *ctx, ALSBlockData *bd,

            if (ch[dep].time_diff_sign) {
                t      = -t;
+                if (t > 0 && begin < t) {
+                    av_log(ctx->avctx, AV_LOG_ERROR, "begin %u smaller than time diff index %d.\n", begin, t);
+                    return AVERROR_INVALIDDATA;
+                }
                begin -= t;
            } else {
+                if (t > 0 && end < t) {
+                    av_log(ctx->avctx, AV_LOG_ERROR, "end %u smaller than time diff index %d.\n", end, t);
+                    return AVERROR_INVALIDDATA;
+                }
                end   -= t;
            }

@@ -1727,9 +1739,9 @@ static av_cold int decode_init(AVCodecContext *avctx)

    // allocate and assign channel data buffer for mcc mode
    if (sconf->mc_coding) {
-        ctx->chan_data_buffer  = av_malloc(sizeof(*ctx->chan_data_buffer) *
+        ctx->chan_data_buffer  = av_mallocz(sizeof(*ctx->chan_data_buffer) *
                                           num_buffers * num_buffers);
-        ctx->chan_data         = av_malloc(sizeof(*ctx->chan_data) *
+        ctx->chan_data         = av_mallocz(sizeof(*ctx->chan_data) *
                                           num_buffers);
        ctx->reverted_channels = av_malloc(sizeof(*ctx->reverted_channels) *
                                           num_buffers);
@@ -23,9 +23,10 @@
 #include "libavutil/arm/asm.S"

 function ff_prefetch_arm, export=1
+1:
        subs            r2,  r2,  #1
        pld             [r0]
        add             r0,  r0,  r1
-        bne             X(ff_prefetch_arm)
+        bne             1b
        bx              lr
 endfunc
@@ -599,8 +599,8 @@ void ff_atrac3p_ipqf(FFTContext *dct_ctx, Atrac3pIPQFChannelCtx *hist,
                     const float *in, float *out)
 {
    int i, s, sb, t, pos_now, pos_next;
-    DECLARE_ALIGNED(32, float, idct_in)[ATRAC3P_SUBBANDS];
-    DECLARE_ALIGNED(32, float, idct_out)[ATRAC3P_SUBBANDS];
+    LOCAL_ALIGNED(32, float, idct_in, [ATRAC3P_SUBBANDS]);
+    LOCAL_ALIGNED(32, float, idct_out, [ATRAC3P_SUBBANDS]);

    memset(out, 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out));

@@ -363,7 +363,7 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
    dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
    dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));

-    if (ctx->cur_field) {
+    if (frame->interlaced_frame && ctx->cur_field) {
        dest_y += frame->linesize[0];
        dest_u += frame->linesize[1];
        dest_v += frame->linesize[2];
@@ -65,7 +65,7 @@ static int dxtory_decode_v1_410(AVCodecContext *avctx, AVFrame *pic,
    uint8_t *Y1, *Y2, *Y3, *Y4, *U, *V;
    int ret;

-    if (src_size < avctx->width * avctx->height * 9L / 8) {
+    if (src_size < avctx->width * avctx->height * 9LL / 8) {
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
        return AVERROR_INVALIDDATA;
    }
@@ -108,7 +108,7 @@ static int dxtory_decode_v1_420(AVCodecContext *avctx, AVFrame *pic,
    uint8_t *Y1, *Y2, *U, *V;
    int ret;

-    if (src_size < avctx->width * avctx->height * 3L / 2) {
+    if (src_size < avctx->width * avctx->height * 3LL / 2) {
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
        return AVERROR_INVALIDDATA;
    }
@@ -145,7 +145,7 @@ static int dxtory_decode_v1_444(AVCodecContext *avctx, AVFrame *pic,
    uint8_t *Y, *U, *V;
    int ret;

-    if (src_size < avctx->width * avctx->height * 3L) {
+    if (src_size < avctx->width * avctx->height * 3LL) {
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
        return AVERROR_INVALIDDATA;
    }
@@ -63,7 +63,7 @@ typedef enum {

 #define EAC3_SR_CODE_REDUCED  3

-void ff_eac3_apply_spectral_extension(AC3DecodeContext *s)
+static void ff_eac3_apply_spectral_extension(AC3DecodeContext *s)
 {
    int bin, bnd, ch, i;
    uint8_t wrapflag[SPX_MAX_BANDS]={1,0,}, num_copy_sections, copy_sizes[SPX_MAX_BANDS];
@@ -101,7 +101,7 @@ void ff_eac3_apply_spectral_extension(AC3DecodeContext *s)
        for (i = 0; i < num_copy_sections; i++) {
            memcpy(&s->transform_coeffs[ch][bin],
                   &s->transform_coeffs[ch][s->spx_dst_start_freq],
-                   copy_sizes[i]*sizeof(float));
+                   copy_sizes[i]*sizeof(INTFLOAT));
            bin += copy_sizes[i];
        }

@@ -124,7 +124,7 @@ void ff_eac3_apply_spectral_extension(AC3DecodeContext *s)
            bin = s->spx_src_start_freq - 2;
            for (bnd = 0; bnd < s->num_spx_bands; bnd++) {
                if (wrapflag[bnd]) {
-                    float *coeffs = &s->transform_coeffs[ch][bin];
+                    INTFLOAT *coeffs = &s->transform_coeffs[ch][bin];
                    coeffs[0] *= atten_tab[0];
                    coeffs[1] *= atten_tab[1];
                    coeffs[2] *= atten_tab[2];
@@ -142,6 +142,11 @@ void ff_eac3_apply_spectral_extension(AC3DecodeContext *s)
        for (bnd = 0; bnd < s->num_spx_bands; bnd++) {
            float nscale = s->spx_noise_blend[ch][bnd] * rms_energy[bnd] * (1.0f / INT32_MIN);
            float sscale = s->spx_signal_blend[ch][bnd];
+#if USE_FIXED
+            // spx_noise_blend and spx_signal_blend are both FP.23
+            nscale *= 1.0 / (1<<23);
+            sscale *= 1.0 / (1<<23);
+#endif
            for (i = 0; i < s->spx_band_sizes[bnd]; i++) {
                float noise  = nscale * (int32_t)av_lfg_get(&s->dith_state);
                s->transform_coeffs[ch][bin]   *= sscale;
@@ -195,7 +200,7 @@ static void idct6(int pre_mant[6])
    pre_mant[5] = even0 - odd0;
 }

-void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch)
+static void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch)
 {
    int bin, blk, gs;
    int end_bap, gaq_mode;
@@ -288,7 +293,7 @@ void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch)
    }
 }

-int ff_eac3_parse_header(AC3DecodeContext *s)
+static int ff_eac3_parse_header(AC3DecodeContext *s)
 {
    int i, blk, ch;
    int ac3_exponent_strategy, parse_aht_info, parse_spx_atten_data;
@@ -151,6 +151,11 @@ static inline int decode_block_intra(MadContext *s, int16_t * block)
                break;
            } else if (level != 0) {
                i += run;
+                if (i > 63) {
+                    av_log(s->avctx, AV_LOG_ERROR,
+                           "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+                    return -1;
+                }
                j = scantable[i];
                level = (level*quant_matrix[j]) >> 4;
                level = (level-1)|1;
@@ -165,6 +170,11 @@ static inline int decode_block_intra(MadContext *s, int16_t * block)
                run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);

                i += run;
+                if (i > 63) {
+                    av_log(s->avctx, AV_LOG_ERROR,
+                           "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+                    return -1;
+                }
                j = scantable[i];
                if (level < 0) {
                    level = -level;
@@ -176,10 +186,6 @@ static inline int decode_block_intra(MadContext *s, int16_t * block)
                    level = (level-1)|1;
                }
            }
-            if (i > 63) {
-                av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
-                return -1;
-            }

            block[j] = level;
        }
@@ -251,7 +251,7 @@ static void put_line(uint8_t *dst, int size, int width, const int *runs)
    PutBitContext pb;
    int run, mode = ~0, pix_left = width, run_idx = 0;

-    init_put_bits(&pb, dst, size * 8);
+    init_put_bits(&pb, dst, size);
    while (pix_left > 0) {
        run       = runs[run_idx++];
        mode      = ~mode;
@@ -697,7 +697,7 @@ static int flac_parse(AVCodecParserContext *s, AVCodecContext *avctx,
 handle_error:
    *poutbuf      = NULL;
    *poutbuf_size = 0;
-    return read_end - buf;
+    return buf_size ? read_end - buf : 0;
 }

 static av_cold int flac_parse_init(AVCodecParserContext *c)
@@ -287,7 +287,7 @@ static int write_header(FlashSV2Context * s, uint8_t * buf, int buf_size)
    if (buf_size < 5)
        return -1;

-    init_put_bits(&pb, buf, buf_size * 8);
+    init_put_bits(&pb, buf, buf_size);

    put_bits(&pb, 4, (s->block_width  >> 4) - 1);
    put_bits(&pb, 12, s->image_width);
@@ -151,7 +151,7 @@ static int encode_bitstream(FlashSVContext *s, const AVFrame *p, uint8_t *buf,
    int buf_pos, res;
    int pred_blocks = 0;

-    init_put_bits(&pb, buf, buf_size * 8);
+    init_put_bits(&pb, buf, buf_size);

    put_bits(&pb,  4, block_width / 16 - 1);
    put_bits(&pb, 12, s->image_width);
@@ -105,7 +105,7 @@ static int gif_image_write_image(AVCodecContext *avctx,
        /* skip common columns */
        while (x_start < x_end) {
            int same_column = 1;
-            for (y = y_start; y < y_end; y++) {
+            for (y = y_start; y <= y_end; y++) {
                if (ref[y*ref_linesize + x_start] != buf[y*linesize + x_start]) {
                    same_column = 0;
                    break;
@@ -117,7 +117,7 @@ static int gif_image_write_image(AVCodecContext *avctx,
        }
        while (x_end > x_start) {
            int same_column = 1;
-            for (y = y_start; y < y_end; y++) {
+            for (y = y_start; y <= y_end; y++) {
                if (ref[y*ref_linesize + x_end] != buf[y*linesize + x_end]) {
                    same_column = 0;
                    break;
@@ -727,6 +727,7 @@ static int decode_init_thread_copy(AVCodecContext *avctx)
    memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
    memset(h->pps_buffers, 0, sizeof(h->pps_buffers));

+    h->avctx          = avctx;
    h->rbsp_buffer[0] = NULL;
    h->rbsp_buffer[1] = NULL;
    h->rbsp_buffer_size[0] = 0;
@@ -1515,9 +1516,6 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
                continue;

 again:
-            if (   !(avctx->active_thread_type & FF_THREAD_FRAME)
-                || nals_needed >= nal_index)
-                h->au_pps_id = -1;
            /* Ignore per frame NAL unit type during extradata
             * parsing. Decoding slices is not possible in codec init
             * with frame-mt */
@@ -1553,8 +1551,14 @@ again:
                    ret = -1;
                    goto end;
                }
-                if(!idr_cleared)
+                if(!idr_cleared) {
+                    if (h->current_slice && (avctx->active_thread_type & FF_THREAD_SLICE)) {
+                        av_log(h, AV_LOG_ERROR, "invalid mixed IDR / non IDR frames cannot be decoded in slice multithreading mode\n");
+                        ret = AVERROR_INVALIDDATA;
+                        goto end;
+                    }
                    idr(h); // FIXME ensure we don't lose some frames if there is reordering
+                }
                idr_cleared = 1;
                h->has_recovery_point = 1;
            case NAL_SLICE:
@@ -1563,6 +1567,10 @@ again:
                hx->inter_gb_ptr      = &hx->gb;
                hx->data_partitioning = 0;

+                if (   nals_needed >= nal_index
+                    || (!(avctx->active_thread_type & FF_THREAD_FRAME) && !context_count))
+                    h->au_pps_id = -1;
+
                if ((err = ff_h264_decode_slice_header(hx, h)))
                    break;

@@ -1684,7 +1692,9 @@ again:
                break;
            case NAL_SPS:
                init_get_bits(&h->gb, ptr, bit_length);
-                if (ff_h264_decode_seq_parameter_set(h) < 0 && (h->is_avc ? nalsize : 1)) {
+                if (ff_h264_decode_seq_parameter_set(h, 0) >= 0)
+                    break;
+                if (h->is_avc ? nalsize : 1) {
                    av_log(h->avctx, AV_LOG_DEBUG,
                           "SPS decoding failure, trying again with the complete NAL\n");
                    if (h->is_avc)
@@ -1693,8 +1703,11 @@ again:
                        break;
                    init_get_bits(&h->gb, &buf[buf_index + 1 - consumed],
                                  8*(next_avc - buf_index + consumed - 1));
-                    ff_h264_decode_seq_parameter_set(h);
+                    if (ff_h264_decode_seq_parameter_set(h, 0) >= 0)
+                        break;
                }
+                init_get_bits(&h->gb, ptr, bit_length);
+                ff_h264_decode_seq_parameter_set(h, 1);

                break;
            case NAL_PPS:
@@ -1727,8 +1740,14 @@ again:
            if (err < 0 || err == SLICE_SKIPED) {
                if (err < 0)
                    av_log(h->avctx, AV_LOG_ERROR, "decode_slice_header error\n");
-                h->ref_count[0] = h->ref_count[1] = h->list_count = 0;
+                hx->ref_count[0] = hx->ref_count[1] = hx->list_count = 0;
            } else if (err == SLICE_SINGLETHREAD) {
+                if (context_count > 1) {
+                    ret = ff_h264_execute_decode_slices(h, context_count - 1);
+                    if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+                        goto end;
+                    context_count = 0;
+                }
                /* Slice could not be decoded in parallel mode, copy down
                 * NAL unit stuff to context 0 and restart. Note that
                 * rbsp_buffer is not transferred, but since we no longer
@@ -539,6 +539,7 @@ typedef struct H264Context {
    int mb_x, mb_y;
    int resync_mb_x;
    int resync_mb_y;
+    int mb_index_end;
    int mb_skip_run;
    int mb_height, mb_width;
    int mb_stride;
@@ -778,7 +779,7 @@ int ff_h264_decode_sei(H264Context *h);
 /**
 * Decode SPS
 */
-int ff_h264_decode_seq_parameter_set(H264Context *h);
+int ff_h264_decode_seq_parameter_set(H264Context *h, int ignore_truncation);

 /**
 * compute profile from sps
@@ -1282,7 +1282,7 @@ void ff_h264_init_cabac_states(H264Context *h) {
 }

 static int decode_cabac_field_decoding_flag(H264Context *h) {
-    const long mbb_xy = h->mb_xy - 2L*h->mb_stride;
+    const int mbb_xy = h->mb_xy - 2*h->mb_stride;

    unsigned long ctx = 0;

@@ -271,7 +271,7 @@ static inline int parse_nal_units(AVCodecParserContext *s,
        init_get_bits(&h->gb, ptr, 8 * dst_length);
        switch (h->nal_unit_type) {
        case NAL_SPS:
-            ff_h264_decode_seq_parameter_set(h);
+            ff_h264_decode_seq_parameter_set(h, 0);
            break;
        case NAL_PPS:
            ff_h264_decode_picture_parameter_set(h, h->gb.size_in_bits);
@@ -241,12 +241,6 @@ static inline int decode_vui_parameters(H264Context *h, SPS *sps)
        }
    }

-    if (get_bits_left(&h->gb) < 0) {
-        av_log(h->avctx, AV_LOG_ERROR,
-               "Overread VUI by %d bits\n", -get_bits_left(&h->gb));
-        return AVERROR_INVALIDDATA;
-    }
-
    return 0;
 }

@@ -303,7 +297,7 @@ static void decode_scaling_matrices(H264Context *h, SPS *sps,
    }
 }

-int ff_h264_decode_seq_parameter_set(H264Context *h)
+int ff_h264_decode_seq_parameter_set(H264Context *h, int ignore_truncation)
 {
    int profile_idc, level_idc, constraint_set_flags = 0;
    unsigned int sps_id;
@@ -371,7 +365,8 @@ int ff_h264_decode_seq_parameter_set(H264Context *h)
                                  "Different chroma and luma bit depth");
            goto fail;
        }
-        if (sps->bit_depth_luma > 14U || sps->bit_depth_chroma > 14U) {
+        if (sps->bit_depth_luma   < 8 || sps->bit_depth_luma   > 14 ||
+            sps->bit_depth_chroma < 8 || sps->bit_depth_chroma > 14) {
            av_log(h->avctx, AV_LOG_ERROR, "illegal bit depth value (%d, %d)\n",
                   sps->bit_depth_luma, sps->bit_depth_chroma);
            goto fail;
@@ -522,6 +517,13 @@ int ff_h264_decode_seq_parameter_set(H264Context *h)
            goto fail;
    }

+    if (get_bits_left(&h->gb) < 0) {
+        av_log(h->avctx, ignore_truncation ? AV_LOG_WARNING : AV_LOG_ERROR,
+               "Overread %s by %d bits\n", sps->vui_parameters_present_flag ? "VUI" : "SPS", -get_bits_left(&h->gb));
+        if (!ignore_truncation)
+            goto fail;
+    }
+
    if (!sps->sar.den)
        sps->sar.den = 1;

@@ -707,7 +707,7 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
         */
        if (h->short_ref_count && h->short_ref[0] == h->cur_pic_ptr) {
            /* Just mark the second field valid */
-            h->cur_pic_ptr->reference = PICT_FRAME;
+            h->cur_pic_ptr->reference |= h->picture_structure;
        } else if (h->cur_pic_ptr->long_ref) {
            av_log(h->avctx, AV_LOG_ERROR, "illegal short term reference "
                                           "assignment for second field "
@@ -1305,6 +1305,10 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
    int must_reinit;
    int needs_reinit = 0;
    int field_pic_flag, bottom_field_flag;
+    int first_slice = h == h0 && !h0->current_slice;
+    int frame_num, picture_structure, droppable;
+    int mb_aff_frame, last_mb_aff_frame;
+    PPS *pps;

    h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
    h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
@@ -1378,18 +1382,27 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
               h0->au_pps_id, pps_id);
        return AVERROR_INVALIDDATA;
    }
-    h->pps = *h0->pps_buffers[pps_id];

-    if (!h0->sps_buffers[h->pps.sps_id]) {
+    pps = h0->pps_buffers[pps_id];
+
+    if (!h0->sps_buffers[pps->sps_id]) {
        av_log(h->avctx, AV_LOG_ERROR,
               "non-existing SPS %u referenced\n",
               h->pps.sps_id);
        return AVERROR_INVALIDDATA;
    }
+    if (first_slice)
+        h->pps = *h0->pps_buffers[pps_id];

-    if (h->pps.sps_id != h->sps.sps_id ||
-        h->pps.sps_id != h->current_sps_id ||
-        h0->sps_buffers[h->pps.sps_id]->new) {
+    if (pps->sps_id != h->sps.sps_id ||
+        pps->sps_id != h->current_sps_id ||
+        h0->sps_buffers[pps->sps_id]->new) {
+
+        if (!first_slice) {
+            av_log(h->avctx, AV_LOG_ERROR,
+               "SPS changed in the middle of the frame\n");
+            return AVERROR_INVALIDDATA;
+        }

        h->sps = *h0->sps_buffers[h->pps.sps_id];

@@ -1419,11 +1432,14 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
                     || 16*h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) != h->avctx->coded_height
                     || h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma
                     || h->cur_chroma_format_idc != h->sps.chroma_format_idc
-                     || av_cmp_q(h->sps.sar, h->avctx->sample_aspect_ratio)
                     || h->mb_width  != h->sps.mb_width
                     || h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag)
                    ));
-    if (non_j_pixfmt(h0->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h0, 0)))
+    if (h0->avctx->pix_fmt == AV_PIX_FMT_NONE
+        || (non_j_pixfmt(h0->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h0, 0))))
+        must_reinit = 1;
+
+    if (first_slice && av_cmp_q(h->sps.sar, h->avctx->sample_aspect_ratio))
        must_reinit = 1;

    h->mb_width  = h->sps.mb_width;
@@ -1466,6 +1482,8 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
            return AVERROR_INVALIDDATA;
        }

+        av_assert1(first_slice);
+
        ff_h264_flush_change(h);

        if ((ret = get_pixel_format(h, 1)) < 0)
@@ -1499,44 +1517,50 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
        }
    }

-    if (h == h0 && h->dequant_coeff_pps != pps_id) {
+    if (first_slice && h->dequant_coeff_pps != pps_id) {
        h->dequant_coeff_pps = pps_id;
        h264_init_dequant_tables(h);
    }

-    h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
+    frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
+    if (!first_slice) {
+        if (h0->frame_num != frame_num) {
+            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
+                   h0->frame_num, frame_num);
+            return AVERROR_INVALIDDATA;
+        }
+    }

    h->mb_mbaff        = 0;
-    h->mb_aff_frame    = 0;
+    mb_aff_frame       = 0;
+    last_mb_aff_frame  = h0->mb_aff_frame;
    last_pic_structure = h0->picture_structure;
    last_pic_droppable = h0->droppable;
-    h->droppable       = h->nal_ref_idc == 0;
+    droppable          = h->nal_ref_idc == 0;
    if (h->sps.frame_mbs_only_flag) {
-        h->picture_structure = PICT_FRAME;
+        picture_structure = PICT_FRAME;
    } else {
        if (!h->sps.direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
            return -1;
        }
        field_pic_flag = get_bits1(&h->gb);
+
        if (field_pic_flag) {
            bottom_field_flag = get_bits1(&h->gb);
-            h->picture_structure = PICT_TOP_FIELD + bottom_field_flag;
+            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
        } else {
-            h->picture_structure = PICT_FRAME;
-            h->mb_aff_frame      = h->sps.mb_aff;
+            picture_structure = PICT_FRAME;
+            mb_aff_frame      = h->sps.mb_aff;
        }
    }
-    h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;
-
-    if (h0->current_slice != 0) {
-        if (last_pic_structure != h->picture_structure ||
-            last_pic_droppable != h->droppable) {
+    if (h0->current_slice) {
+        if (last_pic_structure != picture_structure ||
+            last_pic_droppable != droppable ||
+            last_mb_aff_frame  != mb_aff_frame) {
            av_log(h->avctx, AV_LOG_ERROR,
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
                   last_pic_structure, h->picture_structure);
-            h->picture_structure = last_pic_structure;
-            h->droppable         = last_pic_droppable;
            return AVERROR_INVALIDDATA;
        } else if (!h0->cur_pic_ptr) {
            av_log(h->avctx, AV_LOG_ERROR,
@@ -1544,7 +1568,15 @@ int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
                   h0->current_slice + 1);
            return AVERROR_INVALIDDATA;
        }
-    } else {
+    }
+
+    h->picture_structure = picture_structure;
+    h->droppable         = droppable;
+    h->frame_num         = frame_num;
+    h->mb_aff_frame      = mb_aff_frame;
+    h->mb_field_decoding_flag = picture_structure != PICT_FRAME;
+
+    if (h0->current_slice == 0) {
        /* Shorten frame num gaps so we don't have to allocate reference
         * frames just to throw them away */
        if (h->frame_num != h->prev_frame_num) {
@@ -2417,8 +2449,17 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)

        for (;;) {
            // START_TIMER
-            int ret = ff_h264_decode_mb_cabac(h);
-            int eos;
+            int ret, eos;
+
+            if (h->mb_x + h->mb_y * h->mb_width >= h->mb_index_end) {
+                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps next at %d\n",
+                       h->mb_index_end);
+                er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+                             h->mb_y, ER_MB_ERROR);
+                return AVERROR_INVALIDDATA;
+            }
+
+            ret = ff_h264_decode_mb_cabac(h);
            // STOP_TIMER("decode_mb_cabac")

            if (ret >= 0)
@@ -2480,7 +2521,17 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
        }
    } else {
        for (;;) {
-            int ret = ff_h264_decode_mb_cavlc(h);
+            int ret;
+
+            if (h->mb_x + h->mb_y * h->mb_width >= h->mb_index_end) {
+                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps next at %d\n",
+                       h->mb_index_end);
+                er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+                             h->mb_y, ER_MB_ERROR);
+                return AVERROR_INVALIDDATA;
+            }
+
+            ret = ff_h264_decode_mb_cavlc(h);

            if (ret >= 0)
                ff_h264_hl_decode_mb(h);
@@ -2568,19 +2619,33 @@ int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count)

    av_assert0(h->mb_y < h->mb_height);

+    h->mb_index_end = INT_MAX;
+
    if (h->avctx->hwaccel ||
        h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
        return 0;
    if (context_count == 1) {
        return decode_slice(avctx, &h);
    } else {
+        int j, mb_index;
        av_assert0(context_count > 0);
-        for (i = 1; i < context_count; i++) {
+        for (i = 0; i < context_count; i++) {
+            int mb_index_end = h->mb_width * h->mb_height;
            hx                 = h->thread_context[i];
-            if (CONFIG_ERROR_RESILIENCE) {
+            mb_index = hx->resync_mb_x + hx->resync_mb_y * h->mb_width;
+            if (CONFIG_ERROR_RESILIENCE && i) {
                hx->er.error_count = 0;
            }
            hx->x264_build     = h->x264_build;
+            for (j = 0; j < context_count; j++) {
+                H264Context *sl2 = h->thread_context[j];
+                int mb_index2 = sl2->resync_mb_x + sl2->resync_mb_y * h->mb_width;
+
+                if (i==j || mb_index > mb_index2)
+                    continue;
+                mb_index_end = FFMIN(mb_index_end, mb_index2);
+            }
+            hx->mb_index_end = mb_index_end;
        }

        avctx->execute(avctx, decode_slice, h->thread_context,
@@ -144,7 +144,7 @@ static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
    uint8_t luma_weight_l1_flag[16];
    uint8_t chroma_weight_l1_flag[16];

-    s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb);
+    s->sh.luma_log2_weight_denom = av_clip_c(get_ue_golomb_long(gb), 0, 7);
    if (s->sps->chroma_format_idc != 0) {
        int delta = get_se_golomb(gb);
        s->sh.chroma_log2_weight_denom = av_clip(s->sh.luma_log2_weight_denom + delta, 0, 7);
@@ -2870,17 +2870,30 @@ static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)

        if (s->nals_allocated < s->nb_nals + 1) {
            int new_size = s->nals_allocated + 1;
-            HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
+            void *tmp = av_realloc_array(s->nals, new_size, sizeof(*s->nals));
+            ret = AVERROR(ENOMEM);
            if (!tmp) {
-                ret = AVERROR(ENOMEM);
                goto fail;
            }
            s->nals = tmp;
            memset(s->nals + s->nals_allocated, 0,
-                   (new_size - s->nals_allocated) * sizeof(*tmp));
-            av_reallocp_array(&s->skipped_bytes_nal, new_size, sizeof(*s->skipped_bytes_nal));
-            av_reallocp_array(&s->skipped_bytes_pos_size_nal, new_size, sizeof(*s->skipped_bytes_pos_size_nal));
-            av_reallocp_array(&s->skipped_bytes_pos_nal, new_size, sizeof(*s->skipped_bytes_pos_nal));
+                   (new_size - s->nals_allocated) * sizeof(*s->nals));
+
+            tmp = av_realloc_array(s->skipped_bytes_nal, new_size, sizeof(*s->skipped_bytes_nal));
+            if (!tmp)
+                goto fail;
+            s->skipped_bytes_nal = tmp;
+
+            tmp = av_realloc_array(s->skipped_bytes_pos_size_nal, new_size, sizeof(*s->skipped_bytes_pos_size_nal));
+            if (!tmp)
+                goto fail;
+            s->skipped_bytes_pos_size_nal = tmp;
+
+            tmp = av_realloc_array(s->skipped_bytes_pos_nal, new_size, sizeof(*s->skipped_bytes_pos_nal));
+            if (!tmp)
+                goto fail;
+            s->skipped_bytes_pos_nal = tmp;
+
            s->skipped_bytes_pos_size_nal[s->nals_allocated] = 1024; // initial buffer size
            s->skipped_bytes_pos_nal[s->nals_allocated] = av_malloc_array(s->skipped_bytes_pos_size_nal[s->nals_allocated], sizeof(*s->skipped_bytes_pos));
            s->nals_allocated = new_size;
@@ -298,10 +298,10 @@ typedef struct RefPicListTab {
 } RefPicListTab;

 typedef struct HEVCWindow {
-    int left_offset;
-    int right_offset;
-    int top_offset;
-    int bottom_offset;
+    unsigned int left_offset;
+    unsigned int right_offset;
+    unsigned int top_offset;
+    unsigned int bottom_offset;
 } HEVCWindow;

 typedef struct VUI {
@@ -895,11 +895,30 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
    sps->log2_max_trafo_size                 = log2_diff_max_min_transform_block_size +
                                               sps->log2_min_tb_size;

-    if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
+    if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
+        av_log(s->avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    if (sps->log2_diff_max_min_coding_block_size > 30) {
+        av_log(s->avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_coding_block_size", sps->log2_diff_max_min_coding_block_size);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
+    if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
        av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
        ret = AVERROR_INVALIDDATA;
        goto err;
    }
+
+    if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
+        av_log(s->avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
+        ret = AVERROR_INVALIDDATA;
+        goto err;
+    }
+
    sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
    sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);

@@ -1021,7 +1040,8 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
                         (sps->output_window.left_offset + sps->output_window.right_offset);
    sps->output_height = sps->height -
                         (sps->output_window.top_offset + sps->output_window.bottom_offset);
-    if (sps->output_width <= 0 || sps->output_height <= 0) {
+    if (sps->width  <= sps->output_window.left_offset + (int64_t)sps->output_window.right_offset  ||
+        sps->height <= sps->output_window.top_offset  + (int64_t)sps->output_window.bottom_offset) {
        av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
               sps->output_width, sps->output_height);
        if (s->avctx->err_recognition & AV_EF_EXPLODE) {
@@ -88,7 +88,12 @@ static inline int mdec_decode_block_intra(MDECContext *a, int16_t *block, int n)
            if (level == 127) {
                break;
            } else if (level != 0) {
-                i    += run;
+                i += run;
+                if (i > 63) {
+                    av_log(a->avctx, AV_LOG_ERROR,
+                           "ac-tex damaged at %d %d\n", a->mb_x, a->mb_y);
+                    return AVERROR_INVALIDDATA;
+                }
                j     = scantable[i];
                level = (level * qscale * quant_matrix[j]) >> 3;
                level = (level ^ SHOW_SBITS(re, &a->gb, 1)) - SHOW_SBITS(re, &a->gb, 1);
@@ -98,8 +103,13 @@ static inline int mdec_decode_block_intra(MDECContext *a, int16_t *block, int n)
                run = SHOW_UBITS(re, &a->gb, 6)+1; LAST_SKIP_BITS(re, &a->gb, 6);
                UPDATE_CACHE(re, &a->gb);
                level = SHOW_SBITS(re, &a->gb, 10); SKIP_BITS(re, &a->gb, 10);
-                i    += run;
-                j     = scantable[i];
+                i += run;
+                if (i > 63) {
+                    av_log(a->avctx, AV_LOG_ERROR,
+                           "ac-tex damaged at %d %d\n", a->mb_x, a->mb_y);
+                    return AVERROR_INVALIDDATA;
+                }
+                j = scantable[i];
                if (level < 0) {
                    level = -level;
                    level = (level * qscale * quant_matrix[j]) >> 3;
@@ -110,10 +120,6 @@ static inline int mdec_decode_block_intra(MDECContext *a, int16_t *block, int n)
                    level = (level - 1) | 1;
                }
            }
-            if (i > 63) {
-                av_log(a->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", a->mb_x, a->mb_y);
-                return AVERROR_INVALIDDATA;
-            }

            block[j] = level;
        }
@@ -89,7 +89,7 @@ static void ff_acelp_interpolatef_mips(float *out, const float *in,
                "addu   %[p_filter_coeffs_m],  %[p_filter_coeffs_m],   %[prec] \n\t"
                "madd.s %[v],%[v],%[in_val_m], %[fc_val_m]                     \n\t"

-                : [v] "=&f" (v),[p_in_p] "+r" (p_in_p), [p_in_m] "+r" (p_in_m),
+                : [v] "+&f" (v),[p_in_p] "+r" (p_in_p), [p_in_m] "+r" (p_in_m),
                  [p_filter_coeffs_p] "+r" (p_filter_coeffs_p),
                  [in_val_p] "=&f" (in_val_p), [in_val_m] "=&f" (in_val_m),
                  [fc_val_p] "=&f" (fc_val_p), [fc_val_m] "=&f" (fc_val_m),
@@ -561,9 +561,12 @@ unk_pixfmt:
    }
    if (s->ls) {
        s->upscale_h = s->upscale_v = 0;
-        if (s->nb_components > 1)
+        if (s->nb_components == 3) {
            s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
-        else if (s->palette_index && s->bits <= 8)
+        } else if (s->nb_components != 1) {
+            av_log(s->avctx, AV_LOG_ERROR, "Unsupported number of components %d\n", s->nb_components);
+            return AVERROR_PATCHWELCOME;
+        } else if (s->palette_index && s->bits <= 8)
            s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
        else if (s->bits <= 8)
            s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
@@ -1248,13 +1251,18 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,

                    if (s->interlaced && s->bottom_field)
                        block_offset += linesize[c] >> 1;
-                    ptr = data[c] + block_offset;
+                    if (   8*(h * mb_x + x) < s->width
+                        && 8*(v * mb_y + y) < s->height) {
+                        ptr = data[c] + block_offset;
+                    } else
+                        ptr = NULL;
                    if (!s->progressive) {
-                        if (copy_mb)
-                            mjpeg_copy_block(s, ptr, reference_data[c] + block_offset,
-                                             linesize[c], s->avctx->lowres);
+                        if (copy_mb) {
+                            if (ptr)
+                                mjpeg_copy_block(s, ptr, reference_data[c] + block_offset,
+                                                linesize[c], s->avctx->lowres);

-                        else {
+                        } else {
                            s->bdsp.clear_block(s->block);
                            if (decode_block(s, s->block, i,
                                             s->dc_index[i], s->ac_index[i],
@@ -1263,9 +1271,11 @@ static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
                                       "error y=%d x=%d\n", mb_y, mb_x);
                                return AVERROR_INVALIDDATA;
                            }
-                            s->idsp.idct_put(ptr, linesize[c], s->block);
-                            if (s->bits & 7)
-                                shift_output(s, ptr, linesize[c]);
+                            if (ptr) {
+                                s->idsp.idct_put(ptr, linesize[c], s->block);
+                                if (s->bits & 7)
+                                    shift_output(s, ptr, linesize[c]);
+                            }
                        }
                    } else {
                        int block_idx  = s->block_stride[c] * (v * mb_y + y) +
@@ -1904,6 +1914,10 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
            put_bits(&pb, 8, x);
            if (x == 0xFF) {
                x = src[b++];
+                if (x & 0x80) {
+                    av_log(s->avctx, AV_LOG_WARNING, "Invalid escape sequence\n");
+                    x &= 0x7f;
+                }
                put_bits(&pb, 7, x);
                bit_count--;
            }
@@ -883,7 +883,7 @@ extern const uint8_t ff_aic_dc_scale_table[32];
 extern const uint8_t ff_h263_chroma_qscale_table[32];

 /* rv10.c */
-void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
+int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
 int ff_rv_decode_dc(MpegEncContext *s, int n);
 void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);

@@ -395,18 +395,18 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
        switch(avctx->codec_id) {
        case AV_CODEC_ID_MPEG1VIDEO:
        case AV_CODEC_ID_MPEG2VIDEO:
-            avctx->rc_buffer_size = FFMAX(avctx->rc_max_rate, 15000000) * 112L / 15000000 * 16384;
+            avctx->rc_buffer_size = FFMAX(avctx->rc_max_rate, 15000000) * 112LL / 15000000 * 16384;
            break;
        case AV_CODEC_ID_MPEG4:
        case AV_CODEC_ID_MSMPEG4V1:
        case AV_CODEC_ID_MSMPEG4V2:
        case AV_CODEC_ID_MSMPEG4V3:
            if       (avctx->rc_max_rate >= 15000000) {
-                avctx->rc_buffer_size = 320 + (avctx->rc_max_rate - 15000000L) * (760-320) / (38400000 - 15000000);
+                avctx->rc_buffer_size = 320 + (avctx->rc_max_rate - 15000000LL) * (760-320) / (38400000 - 15000000);
            } else if(avctx->rc_max_rate >=  2000000) {
-                avctx->rc_buffer_size =  80 + (avctx->rc_max_rate -  2000000L) * (320- 80) / (15000000 -  2000000);
+                avctx->rc_buffer_size =  80 + (avctx->rc_max_rate -  2000000LL) * (320- 80) / (15000000 -  2000000);
            } else if(avctx->rc_max_rate >=   384000) {
-                avctx->rc_buffer_size =  40 + (avctx->rc_max_rate -   384000L) * ( 80- 40) / ( 2000000 -   384000);
+                avctx->rc_buffer_size =  40 + (avctx->rc_max_rate -   384000LL) * ( 80- 40) / ( 2000000 -   384000);
            } else
                avctx->rc_buffer_size = 40;
            avctx->rc_buffer_size *= 16384;
@@ -3706,8 +3706,11 @@ static int encode_picture(MpegEncContext *s, int picture_number)
            ff_msmpeg4_encode_picture_header(s, picture_number);
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
            ff_mpeg4_encode_picture_header(s, picture_number);
-        else if (CONFIG_RV10_ENCODER && s->codec_id == AV_CODEC_ID_RV10)
-            ff_rv10_encode_picture_header(s, picture_number);
+        else if (CONFIG_RV10_ENCODER && s->codec_id == AV_CODEC_ID_RV10) {
+            ret = ff_rv10_encode_picture_header(s, picture_number);
+            if (ret < 0)
+                return ret;
+        }
        else if (CONFIG_RV20_ENCODER && s->codec_id == AV_CODEC_ID_RV20)
            ff_rv20_encode_picture_header(s, picture_number);
        else if (CONFIG_FLV_ENCODER && s->codec_id == AV_CODEC_ID_FLV1)
@@ -178,7 +178,7 @@ static void gmc_motion(MpegEncContext *s,
                s->sprite_delta[0][0], s->sprite_delta[0][1],
                s->sprite_delta[1][0], s->sprite_delta[1][1],
                a + 1, (1 << (2 * a + 1)) - s->no_rounding,
-                s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+                (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);

    ptr = ref_picture[2];
    s->mdsp.gmc(dest_cr, ptr, uvlinesize, 8,
@@ -186,7 +186,7 @@ static void gmc_motion(MpegEncContext *s,
                s->sprite_delta[0][0], s->sprite_delta[0][1],
                s->sprite_delta[1][0], s->sprite_delta[1][1],
                a + 1, (1 << (2 * a + 1)) - s->no_rounding,
-                s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+                (s->h_edge_pos + 1) >> 1, (s->v_edge_pos + 1) >> 1);
 }

 static inline int hpel_motion(MpegEncContext *s,
@@ -36,17 +36,15 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
    unsigned char rle_code;
    unsigned char extra_byte, odd_pixel;
    unsigned char stream_byte;
-    unsigned int pixel_ptr = 0;
-    int row_dec = pic->linesize[0];
-    int row_ptr = (avctx->height - 1) * row_dec;
-    int frame_size = row_dec * avctx->height;
+    int pixel_ptr = 0;
+    int line = avctx->height - 1;
    int i;

-    while (row_ptr >= 0) {
+    while (line >= 0 && pixel_ptr <= avctx->width) {
        if (bytestream2_get_bytes_left(gb) <= 0) {
            av_log(avctx, AV_LOG_ERROR,
-                   "MS RLE: bytestream overrun, %d rows left\n",
-                   row_ptr);
+                   "MS RLE: bytestream overrun, %dx%d left\n",
+                   avctx->width - pixel_ptr, line);
            return AVERROR_INVALIDDATA;
        }
        rle_code = stream_byte = bytestream2_get_byteu(gb);
@@ -55,7 +53,7 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
            stream_byte = bytestream2_get_byte(gb);
            if (stream_byte == 0) {
                /* line is done, goto the next one */
-                row_ptr -= row_dec;
+                line--;
                pixel_ptr = 0;
            } else if (stream_byte == 1) {
                /* decode is done */
@@ -65,13 +63,12 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
                stream_byte = bytestream2_get_byte(gb);
                pixel_ptr += stream_byte;
                stream_byte = bytestream2_get_byte(gb);
-                row_ptr -= stream_byte * row_dec;
            } else {
                // copy pixels from encoded stream
                odd_pixel =  stream_byte & 1;
                rle_code = (stream_byte + 1) / 2;
                extra_byte = rle_code & 0x01;
-                if (row_ptr + pixel_ptr + stream_byte > frame_size ||
+                if (pixel_ptr + 2*rle_code - odd_pixel > avctx->width ||
                    bytestream2_get_bytes_left(gb) < rle_code) {
                    av_log(avctx, AV_LOG_ERROR,
                           "MS RLE: frame/stream ptr just went out of bounds (copy)\n");
@@ -82,13 +79,13 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
                    if (pixel_ptr >= avctx->width)
                        break;
                    stream_byte = bytestream2_get_byteu(gb);
-                    pic->data[0][row_ptr + pixel_ptr] = stream_byte >> 4;
+                    pic->data[0][line * pic->linesize[0] + pixel_ptr] = stream_byte >> 4;
                    pixel_ptr++;
                    if (i + 1 == rle_code && odd_pixel)
                        break;
                    if (pixel_ptr >= avctx->width)
                        break;
-                    pic->data[0][row_ptr + pixel_ptr] = stream_byte & 0x0F;
+                    pic->data[0][line * pic->linesize[0] + pixel_ptr] = stream_byte & 0x0F;
                    pixel_ptr++;
                }

@@ -98,7 +95,7 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
            }
        } else {
            // decode a run of data
-            if (row_ptr + pixel_ptr + stream_byte > frame_size) {
+            if (pixel_ptr + rle_code > avctx->width + 1) {
                av_log(avctx, AV_LOG_ERROR,
                       "MS RLE: frame ptr just went out of bounds (run)\n");
                return AVERROR_INVALIDDATA;
@@ -108,9 +105,9 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture *pic,
                if (pixel_ptr >= avctx->width)
                    break;
                if ((i & 1) == 0)
-                    pic->data[0][row_ptr + pixel_ptr] = stream_byte >> 4;
+                    pic->data[0][line * pic->linesize[0] + pixel_ptr] = stream_byte >> 4;
                else
-                    pic->data[0][row_ptr + pixel_ptr] = stream_byte & 0x0F;
+                    pic->data[0][line * pic->linesize[0] + pixel_ptr] = stream_byte & 0x0F;
                pixel_ptr++;
            }
        }
@@ -308,7 +308,7 @@ static void encode_block(NellyMoserEncodeContext *s, unsigned char *output, int

    apply_mdct(s);

-    init_put_bits(&pb, output, output_size * 8);
+    init_put_bits(&pb, output, output_size);

    i = 0;
    for (band = 0; band < NELLY_BANDS; band++) {
@@ -103,7 +103,6 @@ static const AVOption avcodec_options[] = {
 {"hex", "hex motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_HEX }, INT_MIN, INT_MAX, V|E, "me_method" },
 {"umh", "umh motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_UMH }, INT_MIN, INT_MAX, V|E, "me_method" },
 {"iter", "iter motion estimation", 0, AV_OPT_TYPE_CONST, {.i64 = ME_ITER }, INT_MIN, INT_MAX, V|E, "me_method" },
-{"extradata_size", NULL, OFFSET(extradata_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 {"time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, {.dbl = 0}, INT_MIN, INT_MAX},
 {"g", "set the group of picture (GOP) size", OFFSET(gop_size), AV_OPT_TYPE_INT, {.i64 = 12 }, INT_MIN, INT_MAX, V|E},
 {"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
@@ -451,6 +451,14 @@ static int opus_decode_packet(AVCodecContext *avctx, void *data,
    int coded_samples   = 0;
    int decoded_samples = 0;
    int i, ret;
+    int delayed_samples = 0;
+
+    for (i = 0; i < c->nb_streams; i++) {
+        OpusStreamContext *s = &c->streams[i];
+        s->out[0] =
+        s->out[1] = NULL;
+        delayed_samples = FFMAX(delayed_samples, s->delayed_samples);
+    }

    /* decode the header of the first sub-packet to find out the sample count */
    if (buf) {
@@ -464,7 +472,7 @@ static int opus_decode_packet(AVCodecContext *avctx, void *data,
        c->streams[0].silk_samplerate = get_silk_samplerate(pkt->config);
    }

-    frame->nb_samples = coded_samples + c->streams[0].delayed_samples;
+    frame->nb_samples = coded_samples + delayed_samples;

    /* no input or buffered data => nothing to do */
    if (!frame->nb_samples) {
@@ -209,16 +209,26 @@ static void idct_add_altivec(uint8_t *dest, int stride, int16_t *blk)

    IDCT;

+#if HAVE_BIGENDIAN
    p0    = vec_lvsl(0, dest);
    p1    = vec_lvsl(stride, dest);
    p     = vec_splat_u8(-1);
    perm0 = vec_mergeh(p, p0);
    perm1 = vec_mergeh(p, p1);
+#endif
+
+#if HAVE_BIGENDIAN
+#define GET_TMP2(dest, prm)                                 \
+    tmp  = vec_ld(0, dest);                                 \
+    tmp2 = (vec_s16) vec_perm(tmp, (vec_u8) zero, prm);
+#else
+#define GET_TMP2(dest, prm)                                 \
+    tmp  = vec_vsx_ld(0, dest);                             \
+    tmp2 = (vec_s16) vec_mergeh(tmp, (vec_u8) zero)
+#endif

 #define ADD(dest, src, perm)                                \
-    /* *(uint64_t *) &tmp = *(uint64_t *) dest; */          \
-    tmp  = vec_ld(0, dest);                                 \
-    tmp2 = (vec_s16) vec_perm(tmp, (vec_u8) zero, perm);    \
+    GET_TMP2(dest, perm);                                   \
    tmp3 = vec_adds(tmp2, src);                             \
    tmp  = vec_packsu(tmp3, tmp3);                          \
    vec_ste((vec_u32) tmp, 0, (unsigned int *) dest);       \
@@ -55,7 +55,7 @@ static int pix_norm1_altivec(uint8_t *pix, int line_size)
    /* Sum up the four partial sums, and put the result into s. */
    sum = vec_sums((vector signed int) sv, (vector signed int) zero);
    sum = vec_splat(sum, 3);
-    vec_vsx_st(sum, 0, &s);
+    vec_ste(sum, 0, &s);
    return s;
 }
 #else
@@ -113,7 +113,7 @@ static int pix_sum_altivec(uint8_t *pix, int line_size)
    /* Sum up the four partial sums, and put the result into s. */
    sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
    sumdiffs = vec_splat(sumdiffs, 3);
-    vec_vsx_st(sumdiffs, 0, &s);
+    vec_ste(sumdiffs, 0, &s);
    return s;
 }
 #else
@@ -304,7 +304,7 @@ static int encode_slice_plane(AVCodecContext *avctx, int mb_count,
    }

    blocks_per_slice = mb_count << (2 - chroma);
-    init_put_bits(&pb, buf, buf_size << 3);
+    init_put_bits(&pb, buf, buf_size);

    encode_dc_coeffs(&pb, blocks, blocks_per_slice, qmat);
    encode_ac_coeffs(avctx, &pb, blocks, blocks_per_slice, qmat);
@@ -1058,7 +1058,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                    slice_hdr        = pkt->data + (slice_hdr        - start);
                    tmp              = pkt->data + (tmp              - start);
                }
-                init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)) * 8);
+                init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)));
                ret = encode_slice(avctx, pic, &pb, sizes, x, y, q,
                                   mbs_per_slice);
                if (ret < 0)
@@ -120,12 +120,13 @@ static void av_noinline qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
    int filled = 0;
    int orig_height;

-    if(!refdata)
-        refdata= dst;
-
-    /* copy prev frame */
-    for(i = 0; i < height; i++)
-        memcpy(dst + (i * stride), refdata + (i * stride), width);
+    if (refdata) {
+        /* copy prev frame */
+        for (i = 0; i < height; i++)
+            memcpy(dst + (i * stride), refdata + (i * stride), width);
+    } else {
+        refdata = dst;
+    }

    orig_height = height;
    height--;
@@ -966,6 +966,8 @@ static av_cold int roq_encode_init(AVCodecContext *avctx)

    av_lfg_init(&enc->randctx, 1);

+    enc->avctx = avctx;
+
    enc->framesSinceKeyframe = 0;
    if ((avctx->width & 0xf) || (avctx->height & 0xf)) {
        av_log(avctx, AV_LOG_ERROR, "Dimensions must be divisible by 16\n");
@@ -28,7 +28,7 @@
 #include "mpegvideo.h"
 #include "put_bits.h"

-void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
+int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
 {
    int full_frame= 0;

@@ -48,12 +48,17 @@ void ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
    /* if multiple packets per frame are sent, the position at which
       to display the macroblocks is coded here */
    if(!full_frame){
+        if (s->mb_width * s->mb_height >= (1U << 12)) {
+            avpriv_report_missing_feature(s, "Encoding frames with 4096 or more macroblocks");
+            return AVERROR(ENOSYS);
+        }
        put_bits(&s->pb, 6, 0); /* mb_x */
        put_bits(&s->pb, 6, 0); /* mb_y */
        put_bits(&s->pb, 12, s->mb_width * s->mb_height);
    }

    put_bits(&s->pb, 3, 0);     /* ignored */
+    return 0;
 }

 FF_MPV_GENERIC_CLASS(rv10)
@@ -82,7 +82,7 @@ static int s302m_encode2_frame(AVCodecContext *avctx, AVPacket *avpkt,
        return ret;

    o = avpkt->data;
-    init_put_bits(&pb, o, buf_size * 8);
+    init_put_bits(&pb, o, buf_size);
    put_bits(&pb, 16, buf_size - AES3_HEADER_LEN);
    put_bits(&pb, 2, (avctx->channels - 2) >> 1);   // number of channels
    put_bits(&pb, 8, 0);                            // channel ID
@@ -152,7 +152,7 @@ static int decode_q_branch(SnowContext *s, int level, int x, int y){
        int l = left->color[0];
        int cb= left->color[1];
        int cr= left->color[2];
-        int ref = 0;
+        unsigned ref = 0;
        int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref);
        int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 0*av_log2(2*FFABS(tr->mx - top->mx));
        int my_context= av_log2(2*FFABS(left->my - top->my)) + 0*av_log2(2*FFABS(tr->my - top->my));
@@ -839,13 +839,6 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
                s->bpp = -1;
            }
        }
-        if (s->bpp > 64U) {
-            av_log(s->avctx, AV_LOG_ERROR,
-                   "This format is not supported (bpp=%d, %d components)\n",
-                   s->bpp, count);
-            s->bpp = 0;
-            return AVERROR_INVALIDDATA;
-        }
        break;
    case TIFF_SAMPLES_PER_PIXEL:
        if (count != 1) {
@@ -1158,6 +1151,13 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
        }
    }
 end:
+    if (s->bpp > 64U) {
+        av_log(s->avctx, AV_LOG_ERROR,
+                "This format is not supported (bpp=%d, %d components)\n",
+                s->bpp, count);
+        s->bpp = 0;
+        return AVERROR_INVALIDDATA;
+    }
    bytestream2_seek(&s->gb, start, SEEK_SET);
    return 0;
 }
@@ -246,7 +246,7 @@ int ff_set_sar(AVCodecContext *avctx, AVRational sar)
    int ret = av_image_check_sar(avctx->width, avctx->height, sar);

    if (ret < 0) {
-        av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
+        av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %d/%d\n",
               sar.num, sar.den);
        avctx->sample_aspect_ratio = (AVRational){ 0, 1 };
        return ret;
@@ -374,7 +374,7 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
    case AV_PIX_FMT_YUVJ411P:
    case AV_PIX_FMT_UYYVYY411:
        w_align = 32;
-        h_align = 8;
+        h_align = 16 * 2;
        break;
    case AV_PIX_FMT_YUV410P:
        if (s->codec_id == AV_CODEC_ID_SVQ1) {
@@ -176,19 +176,25 @@ int update_dimensions(VP8Context *s, int width, int height, int is_vp7)
    s->top_border  = av_mallocz((s->mb_width + 1) * sizeof(*s->top_border));
    s->thread_data = av_mallocz(MAX_THREADS * sizeof(VP8ThreadData));

+    if (!s->macroblocks_base || !s->top_nnz || !s->top_border ||
+        !s->thread_data || (!s->intra4x4_pred_mode_top && !s->mb_layout)) {
+        free_buffers(s);
+        return AVERROR(ENOMEM);
+    }
+
    for (i = 0; i < MAX_THREADS; i++) {
        s->thread_data[i].filter_strength =
            av_mallocz(s->mb_width * sizeof(*s->thread_data[0].filter_strength));
+        if (!s->thread_data[i].filter_strength) {
+            free_buffers(s);
+            return AVERROR(ENOMEM);
+        }
 #if HAVE_THREADS
        pthread_mutex_init(&s->thread_data[i].lock, NULL);
        pthread_cond_init(&s->thread_data[i].cond, NULL);
 #endif
    }

-    if (!s->macroblocks_base || !s->top_nnz || !s->top_border ||
-        (!s->intra4x4_pred_mode_top && !s->mb_layout))
-        return AVERROR(ENOMEM);
-
    s->macroblocks = s->macroblocks_base + 1;

    return 0;
@@ -279,7 +279,8 @@ static int vp9_alloc_frame(AVCodecContext *ctx, VP9Frame *f)

    // retain segmentation map if it doesn't update
    if (s->segmentation.enabled && !s->segmentation.update_map &&
-        !s->intraonly && !s->keyframe && !s->errorres) {
+        !s->intraonly && !s->keyframe && !s->errorres &&
+        ctx->active_thread_type != FF_THREAD_FRAME) {
        memcpy(f->segmentation_map, s->frames[LAST_FRAME].segmentation_map, sz);
    }

@@ -1351,9 +1352,18 @@ static void decode_mode(AVCodecContext *ctx)

            if (!s->last_uses_2pass)
                ff_thread_await_progress(&s->frames[LAST_FRAME].tf, row >> 3, 0);
-            for (y = 0; y < h4; y++)
+            for (y = 0; y < h4; y++) {
+                int idx_base = (y + row) * 8 * s->sb_cols + col;
                for (x = 0; x < w4; x++)
-                    pred = FFMIN(pred, refsegmap[(y + row) * 8 * s->sb_cols + x + col]);
+                    pred = FFMIN(pred, refsegmap[idx_base + x]);
+                if (!s->segmentation.update_map && ctx->active_thread_type == FF_THREAD_FRAME) {
+                    // FIXME maybe retain reference to previous frame as
+                    // segmap reference instead of copying the whole map
+                    // into a new buffer
+                    memcpy(&s->frames[CUR_FRAME].segmentation_map[idx_base],
+                           &refsegmap[idx_base], w4);
+                }
+            }
            av_assert1(pred < 8);
            b->seg_id = pred;
        } else {
@@ -2496,7 +2506,7 @@ static void intra_recon(AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off)
            for (x = 0; x < end_x; x += uvstep1d, ptr += 4 * uvstep1d,
                                   ptr_r += 4 * uvstep1d, n += step) {
                int mode = b->uvmode;
-                uint8_t *a = &a_buf[16];
+                uint8_t *a = &a_buf[32];
                int eob = b->skip ? 0 : b->uvtx > TX_8X8 ? AV_RN16A(&s->uveob[p][n]) : s->uveob[p][n];

                mode = check_intra_mode(s, mode, &a, ptr_r,
@@ -3748,7 +3758,7 @@ static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
        if ((res = av_frame_ref(frame, s->refs[ref].f)) < 0)
            return res;
        *got_frame = 1;
-        return 0;
+        return pkt->size;
    }
    data += res;
    size -= res;
@@ -3972,7 +3982,7 @@ static int vp9_decode_frame(AVCodecContext *ctx, void *frame,
        *got_frame = 1;
    }

-    return 0;
+    return pkt->size;
 }

 static void vp9_decode_flush(AVCodecContext *ctx)
@@ -694,6 +694,11 @@ static int decode_entropy_coded_image(WebPContext *s, enum ImageRole role,
                length = offset + get_bits(&s->gb, extra_bits) + 1;
            }
            prefix_code = huff_reader_get_symbol(&hg[HUFF_IDX_DIST], &s->gb);
+            if (prefix_code > 39) {
+                av_log(s->avctx, AV_LOG_ERROR,
+                       "distance prefix code too large: %d\n", prefix_code);
+                return AVERROR_INVALIDDATA;
+            }
            if (prefix_code < 4) {
                distance = prefix_code + 1;
            } else {
@@ -1099,7 +1104,7 @@ static int vp8_lossless_decode_frame(AVCodecContext *avctx, AVFrame *p,
                                     unsigned int data_size, int is_alpha_chunk)
 {
    WebPContext *s = avctx->priv_data;
-    int w, h, ret, i;
+    int w, h, ret, i, used;

    if (!is_alpha_chunk) {
        s->lossless = 1;
@@ -1149,8 +1154,16 @@ static int vp8_lossless_decode_frame(AVCodecContext *avctx, AVFrame *p,
    /* parse transformations */
    s->nb_transforms = 0;
    s->reduced_width = 0;
+    used = 0;
    while (get_bits1(&s->gb)) {
        enum TransformType transform = get_bits(&s->gb, 2);
+        if (used & (1 << transform)) {
+            av_log(avctx, AV_LOG_ERROR, "Transform %d used more than once\n",
+                   transform);
+            ret = AVERROR_INVALIDDATA;
+            goto free_and_return;
+        }
+        used |= (1 << transform);
        s->transforms[s->nb_transforms++] = transform;
        switch (transform) {
        case PREDICTOR_TRANSFORM:
@@ -26,12 +26,6 @@ SECTION_TEXT
 ; int ff_scalarproduct_and_madd_int16(int16_t *v1, int16_t *v2, int16_t *v3,
 ;                                     int order, int mul)
 cglobal scalarproduct_and_madd_int16, 4,4,8, v1, v2, v3, order, mul
-%if mmsize == 16
-    test orderq, 8
-        jnz scalarproduct_and_madd_int16_fallback
-%else
-    scalarproduct_and_madd_int16_fallback
-%endif
    shl orderq, 1
    movd    m7, mulm
 %if mmsize == 16
@@ -123,8 +117,6 @@ align 16
 ;                                     int order, int mul)
 INIT_XMM ssse3
 cglobal scalarproduct_and_madd_int16, 4,5,10, v1, v2, v3, order, mul
-    test orderq, 8
-        jnz scalarproduct_and_madd_int16_fallback
    shl orderq, 1
    movd    m7, mulm
    pshuflw m7, m7, 0
@@ -31,17 +31,41 @@ int32_t ff_scalarproduct_and_madd_int16_ssse3(int16_t *v1, const int16_t *v2,
                                              const int16_t *v3,
                                              int order, int mul);

+#if HAVE_YASM
+static int32_t scalarproduct_and_madd_int16_sse2(int16_t *v1, const int16_t *v2,
+                                                 const int16_t *v3,
+                                                 int order, int mul)
+{
+    if (order & 8)
+        return ff_scalarproduct_and_madd_int16_mmxext(v1, v2, v3, order, mul);
+    else
+        return ff_scalarproduct_and_madd_int16_sse2(v1, v2, v3, order, mul);
+}
+
+static int32_t scalarproduct_and_madd_int16_ssse3(int16_t *v1, const int16_t *v2,
+                                                  const int16_t *v3,
+                                                  int order, int mul)
+{
+    if (order & 8)
+        return ff_scalarproduct_and_madd_int16_mmxext(v1, v2, v3, order, mul);
+    else
+        return ff_scalarproduct_and_madd_int16_ssse3(v1, v2, v3, order, mul);
+}
+#endif
+
 av_cold void ff_llauddsp_init_x86(LLAudDSPContext *c)
 {
+#if HAVE_YASM
    int cpu_flags = av_get_cpu_flags();

    if (EXTERNAL_MMXEXT(cpu_flags))
        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_mmxext;

    if (EXTERNAL_SSE2(cpu_flags))
-        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_sse2;
+        c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_sse2;

    if (EXTERNAL_SSSE3(cpu_flags) &&
        !(cpu_flags & (AV_CPU_FLAG_SSE42 | AV_CPU_FLAG_3DNOW))) // cachesplit
-        c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_ssse3;
+        c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_ssse3;
+#endif
 }
@@ -148,8 +148,8 @@ static void mlp_filter_channel_x86(int32_t *state, const int32_t *coeff,
        FIRMUL   (ff_mlp_firorder_6, 0x14   )
        FIRMUL   (ff_mlp_firorder_5, 0x10   )
        FIRMUL   (ff_mlp_firorder_4, 0x0c   )
-        FIRMULREG(ff_mlp_firorder_3, 0x08,10)
-        FIRMULREG(ff_mlp_firorder_2, 0x04, 9)
+        FIRMUL   (ff_mlp_firorder_3, 0x08   )
+        FIRMUL   (ff_mlp_firorder_2, 0x04   )
        FIRMULREG(ff_mlp_firorder_1, 0x00, 8)
        LABEL_MANGLE(ff_mlp_firorder_0)":\n\t"
        "jmp  *%6                     \n\t"
@@ -178,8 +178,6 @@ static void mlp_filter_channel_x86(int32_t *state, const int32_t *coeff,
        : /* 4*/"r"((x86_reg)mask), /* 5*/"r"(firjump),
          /* 6*/"r"(iirjump)      , /* 7*/"c"(filter_shift)
        , /* 8*/"r"((int64_t)coeff[0])
-        , /* 9*/"r"((int64_t)coeff[1])
-        , /*10*/"r"((int64_t)coeff[2])
        : "rax", "rdx", "rsi"
 #else /* ARCH_X86_32 */
          /* 3*/"+m"(blocksize)
@@ -410,11 +410,16 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
    int hi_ver, lo_ver, ret;

    /* parse header */
+    if (len < 1)
+        return AVERROR_INVALIDDATA;
    c->flags = buf[0];
    buf++; len--;
    if (c->flags & ZMBV_KEYFRAME) {
        void *decode_intra = NULL;
        c->decode_intra= NULL;
+
+        if (len < 6)
+            return AVERROR_INVALIDDATA;
        hi_ver = buf[0];
        lo_ver = buf[1];
        c->comp = buf[2];
@@ -134,9 +134,9 @@ int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum AVAppToD
 int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToAppMessageType type,
                                        void *data, size_t data_size)
 {
-    if (!s->control_message_cb)
+    if (!av_format_get_control_message_cb(s))
        return AVERROR(ENOSYS);
-    return s->control_message_cb(s, type, data, data_size);
+    return av_format_get_control_message_cb(s)(s, type, data, data_size);
 }

 int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s,
@@ -534,7 +534,7 @@ static int config_input(AVFilterLink *inlink)
    /* each slice will need to (pre & re)process the top and bottom block of
     * the previous one in in addition to its processing area. This is because
     * each pixel is averaged by all the surrounding blocks */
-    slice_h = (int)ceilf(s->pr_height / s->nb_threads) + (s->bsize - 1) * 2;
+    slice_h = (int)ceilf(s->pr_height / (float)s->nb_threads) + (s->bsize - 1) * 2;
    for (i = 0; i < s->nb_threads; i++) {
        s->slices[i] = av_malloc_array(linesize, slice_h * sizeof(*s->slices[i]));
        if (!s->slices[i])
@@ -82,6 +82,7 @@ static int config_output(AVFilterLink *outlink)
    int width            = ctx->inputs[LEFT]->w;
    int height           = ctx->inputs[LEFT]->h;
    AVRational time_base = ctx->inputs[LEFT]->time_base;
+    AVRational frame_rate = ctx->inputs[LEFT]->frame_rate;

    // check size and fps match on the other input
    if (width  != ctx->inputs[RIGHT]->w ||
@@ -93,11 +94,18 @@ static int config_output(AVFilterLink *outlink)
        return AVERROR_INVALIDDATA;
    } else if (av_cmp_q(time_base, ctx->inputs[RIGHT]->time_base) != 0) {
        av_log(ctx, AV_LOG_ERROR,
-               "Left and right framerates differ (%d/%d vs %d/%d).\n",
+               "Left and right time bases differ (%d/%d vs %d/%d).\n",
               time_base.num, time_base.den,
               ctx->inputs[RIGHT]->time_base.num,
               ctx->inputs[RIGHT]->time_base.den);
        return AVERROR_INVALIDDATA;
+    } else if (av_cmp_q(frame_rate, ctx->inputs[RIGHT]->frame_rate) != 0) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Left and right framerates differ (%d/%d vs %d/%d).\n",
+               frame_rate.num, frame_rate.den,
+               ctx->inputs[RIGHT]->frame_rate.num,
+               ctx->inputs[RIGHT]->frame_rate.den);
+        return AVERROR_INVALIDDATA;
    }

    s->pix_desc = av_pix_fmt_desc_get(outlink->format);
@@ -108,6 +116,8 @@ static int config_output(AVFilterLink *outlink)
    switch (s->format) {
    case AV_STEREO3D_FRAMESEQUENCE:
        time_base.den *= 2;
+        frame_rate.num *= 2;
+
        s->double_pts = AV_NOPTS_VALUE;
        break;
    case AV_STEREO3D_COLUMNS:
@@ -126,6 +136,7 @@ static int config_output(AVFilterLink *outlink)
    outlink->w         = width;
    outlink->h         = height;
    outlink->time_base = time_base;
+    outlink->frame_rate= frame_rate;

    return 0;
 }
@@ -40,6 +40,11 @@ static int adx_read_packet(AVFormatContext *s, AVPacket *pkt)
    AVCodecContext *avctx = s->streams[0]->codec;
    int ret, size;

+    if (avctx->channels <= 0) {
+        av_log(s, AV_LOG_ERROR, "invalid number of channels %d\n", avctx->channels);
+        return AVERROR_INVALIDDATA;
+    }
+
    size = BLOCK_SIZE * avctx->channels;

    pkt->pos = avio_tell(s->pb);
@@ -83,8 +88,14 @@ static int adx_read_header(AVFormatContext *s)
        av_log(s, AV_LOG_ERROR, "Invalid extradata size.\n");
        return AVERROR_INVALIDDATA;
    }
+    avctx->channels    = AV_RB8(avctx->extradata + 7);
    avctx->sample_rate = AV_RB32(avctx->extradata + 8);

+    if (avctx->channels <= 0) {
+        av_log(s, AV_LOG_ERROR, "invalid number of channels %d\n", avctx->channels);
+        return AVERROR_INVALIDDATA;
+    }
+
    st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
    st->codec->codec_id    = s->iformat->raw_codec_id;

@@ -150,7 +150,8 @@ static int apng_read_header(AVFormatContext *s)
    AVIOContext *pb = s->pb;
    uint32_t len, tag;
    AVStream *st;
-    int ret = AVERROR_INVALIDDATA, acTL_found = 0;
+    int acTL_found = 0;
+    int64_t ret = AVERROR_INVALIDDATA;

    /* verify PNGSIG */
    if (avio_rb64(pb) != PNGSIG)
@@ -321,7 +322,7 @@ static int decode_fctl_chunk(AVFormatContext *s, APNGDemuxContext *ctx, AVPacket
 static int apng_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
    APNGDemuxContext *ctx = s->priv_data;
-    int ret;
+    int64_t ret;
    int64_t size;
    AVIOContext *pb = s->pb;
    uint32_t len, tag;
@@ -1484,7 +1484,7 @@ static int asf_build_simple_index(AVFormatContext *s, int stream_index)
    ff_asf_guid g;
    ASFContext *asf     = s->priv_data;
    int64_t current_pos = avio_tell(s->pb);
-    int ret = 0;
+    int64_t ret;

    if((ret = avio_seek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET)) < 0) {
        return ret;
@@ -1554,7 +1554,7 @@ static int asf_read_seek(AVFormatContext *s, int stream_index,

    /* Try using the protocol's read_seek if available */
    if (s->pb) {
-        int ret = avio_seek_time(s->pb, stream_index, pts, flags);
+        int64_t ret = avio_seek_time(s->pb, stream_index, pts, flags);
        if (ret >= 0)
            asf_reset_header(s);
        if (ret != AVERROR(ENOSYS))
@@ -664,6 +664,7 @@ static int asf_write_header(AVFormatContext *s)
     * It is needed to use asf as a streamable format. */
    if (asf_write_header1(s, 0, DATA_HEADER_SIZE) < 0) {
        //av_free(asf);
+        av_freep(&asf->index_ptr);
        return -1;
    }

@@ -36,6 +36,7 @@
 #include "riff.h"
 #include "libavcodec/bytestream.h"
 #include "libavcodec/exif.h"
+#include "libavformat/isom.h"

 typedef struct AVIStream {
    int64_t frame_offset;   /* current frame (video) or byte (audio) counter
@@ -771,6 +772,12 @@ static int avi_read_header(AVFormatContext *s)
                    st->codec->codec_tag  = tag1;
                    st->codec->codec_id   = ff_codec_get_id(ff_codec_bmp_tags,
                                                            tag1);
+                    if (!st->codec->codec_id) {
+                        st->codec->codec_id = ff_codec_get_id(ff_codec_movvideo_tags,
+                                                              tag1);
+                        if (st->codec->codec_id)
+                           av_log(s, AV_LOG_WARNING, "mov tag found in avi\n");
+                    }
                    /* This is needed to get the pict type which is necessary
                     * for generating correct pts. */
                    st->need_parsing = AVSTREAM_PARSE_HEADERS;
@@ -119,8 +119,12 @@ static int write_header(AVFormatContext *s)
 {
    AVCodecContext *enc = s->streams[0]->codec;

-    enc->codec_id = AV_CODEC_ID_G729;
-    enc->channels = 1;
+    if ((enc->codec_id != AV_CODEC_ID_G729) || enc->channels != 1) {
+        av_log(s, AV_LOG_ERROR,
+               "only codec g729 with 1 channel is supported by this format\n");
+        return AVERROR(EINVAL);
+    }
+
    enc->bits_per_coded_sample = 16;
    enc->block_align = (enc->bits_per_coded_sample * enc->channels) >> 3;

@@ -133,6 +137,9 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
    GetBitContext gb;
    int i;

+    if (pkt->size != 10)
+        return AVERROR(EINVAL);
+
    avio_wl16(pb, SYNC_WORD);
    avio_wl16(pb, 8 * 10);

@@ -82,6 +82,7 @@ static int ffm_read_data(AVFormatContext *s,
    FFMContext *ffm = s->priv_data;
    AVIOContext *pb = s->pb;
    int len, fill_size, size1, frame_offset, id;
+    int64_t last_pos = -1;

    size1 = size;
    while (size > 0) {
@@ -101,9 +102,11 @@ static int ffm_read_data(AVFormatContext *s,
                avio_seek(pb, tell, SEEK_SET);
            }
            id = avio_rb16(pb); /* PACKET_ID */
-            if (id != PACKET_ID)
+            if (id != PACKET_ID) {
                if (ffm_resync(s, id) < 0)
                    return -1;
+                last_pos = avio_tell(pb);
+            }
            fill_size = avio_rb16(pb);
            ffm->dts = avio_rb64(pb);
            frame_offset = avio_rb16(pb);
@@ -117,7 +120,9 @@ static int ffm_read_data(AVFormatContext *s,
                if (!frame_offset) {
                    /* This packet has no frame headers in it */
                    if (avio_tell(pb) >= ffm->packet_size * 3LL) {
-                        avio_seek(pb, -ffm->packet_size * 2LL, SEEK_CUR);
+                        int64_t seekback = FFMIN(ffm->packet_size * 2LL, avio_tell(pb) - last_pos);
+                        seekback = FFMAX(seekback, 0);
+                        avio_seek(pb, -seekback, SEEK_CUR);
                        goto retry_read;
                    }
                    /* This is bad, we cannot find a valid frame header */
@@ -261,7 +266,7 @@ static int ffm2_read_header(AVFormatContext *s)
    AVIOContext *pb = s->pb;
    AVCodecContext *codec;
    int ret;
-    int f_main = 0, f_cprv, f_stvi, f_stau;
+    int f_main = 0, f_cprv = -1, f_stvi = -1, f_stau = -1;
    AVCodec *enc;
    char *buffer;

@@ -331,6 +336,12 @@ static int ffm2_read_header(AVFormatContext *s)
            }
            codec->time_base.num = avio_rb32(pb);
            codec->time_base.den = avio_rb32(pb);
+            if (codec->time_base.num <= 0 || codec->time_base.den <= 0) {
+                av_log(s, AV_LOG_ERROR, "Invalid time base %d/%d\n",
+                       codec->time_base.num, codec->time_base.den);
+                ret = AVERROR_INVALIDDATA;
+                goto fail;
+            }
            codec->width = avio_rb16(pb);
            codec->height = avio_rb16(pb);
            codec->gop_size = avio_rb16(pb);
@@ -434,7 +445,7 @@ static int ffm2_read_header(AVFormatContext *s)
    }

    /* get until end of block reached */
-    while ((avio_tell(pb) % ffm->packet_size) != 0)
+    while ((avio_tell(pb) % ffm->packet_size) != 0 && !pb->eof_reached)
        avio_r8(pb);

    /* init packet demux */
@@ -503,6 +514,11 @@ static int ffm_read_header(AVFormatContext *s)
        case AVMEDIA_TYPE_VIDEO:
            codec->time_base.num = avio_rb32(pb);
            codec->time_base.den = avio_rb32(pb);
+            if (codec->time_base.num <= 0 || codec->time_base.den <= 0) {
+                av_log(s, AV_LOG_ERROR, "Invalid time base %d/%d\n",
+                       codec->time_base.num, codec->time_base.den);
+                goto fail;
+            }
            codec->width = avio_rb16(pb);
            codec->height = avio_rb16(pb);
            codec->gop_size = avio_rb16(pb);
@@ -561,7 +577,7 @@ static int ffm_read_header(AVFormatContext *s)
    }

    /* get until end of block reached */
-    while ((avio_tell(pb) % ffm->packet_size) != 0)
+    while ((avio_tell(pb) % ffm->packet_size) != 0 && !pb->eof_reached)
        avio_r8(pb);

    /* init packet demux */
@@ -521,7 +521,7 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
        avio_w8(pb, FLV_TAG_TYPE_VIDEO);

        flags = enc->codec_tag;
-        if (flags == 0) {
+        if (flags <= 0 || flags > 15) {
            av_log(s, AV_LOG_ERROR,
                   "Video codec '%s' is not compatible with FLV\n",
                   avcodec_get_name(enc->codec_id));
@@ -560,7 +560,7 @@ static int gxf_packet(AVFormatContext *s, AVPacket *pkt) {
 }

 static int gxf_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags) {
-    int res = 0;
+    int64_t res = 0;
    uint64_t pos;
    uint64_t maxlen = 100 * 1024 * 1024;
    AVStream *st = s->streams[0];
@@ -359,7 +359,7 @@ static int idcin_read_seek(AVFormatContext *s, int stream_index,
    IdcinDemuxContext *idcin = s->priv_data;

    if (idcin->first_pkt_pos > 0) {
-        int ret = avio_seek(s->pb, idcin->first_pkt_pos, SEEK_SET);
+        int64_t ret = avio_seek(s->pb, idcin->first_pkt_pos, SEEK_SET);
        if (ret < 0)
            return ret;
        ff_update_cur_dts(s, s->streams[idcin->video_stream_index], 0);
@@ -1926,8 +1926,8 @@ static int matroska_parse_tracks(AVFormatContext *s)
                av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
                          1000000000, track->default_duration, 30000);
 #if FF_API_R_FRAME_RATE
-                if (   st->avg_frame_rate.num < st->avg_frame_rate.den * 1000L
-                    && st->avg_frame_rate.num > st->avg_frame_rate.den * 5L)
+                if (   st->avg_frame_rate.num < st->avg_frame_rate.den * 1000LL
+                    && st->avg_frame_rate.num > st->avg_frame_rate.den * 5LL)
                    st->r_frame_rate = st->avg_frame_rate;
 #endif
            }
@@ -2460,7 +2460,7 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
    /* try relative path, we do not try the absolute because it can leak information about our
       system to an attacker */
    if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
-        char filename[1024];
+        char filename[1025];
        const char *src_path;
        int i, l;

@@ -2486,10 +2486,15 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
            filename[src_path - src] = 0;

            for (i = 1; i < ref->nlvl_from; i++)
-                av_strlcat(filename, "../", 1024);
+                av_strlcat(filename, "../", sizeof(filename));

-            av_strlcat(filename, ref->path + l + 1, 1024);
+            av_strlcat(filename, ref->path + l + 1, sizeof(filename));
+            if (!use_absolute_path)
+                if(strstr(ref->path + l + 1, "..") || ref->nlvl_from > 1)
+                    return AVERROR(ENOENT);

+            if (strlen(filename) + 1 == sizeof(filename))
+                return AVERROR(ENOENT);
            if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
                return 0;
        }
@@ -57,7 +57,7 @@ typedef struct {

 static inline int64_t bs_get_v(const uint8_t **bs)
 {
-    int64_t v = 0;
+    uint64_t v = 0;
    int br = 0;
    int c;

@@ -91,7 +91,7 @@ static int mpc8_probe(AVProbeData *p)
        size = bs_get_v(&bs);
        if (size < 2)
            return 0;
-        if (bs + size - 2 >= bs_end)
+        if (size >= bs_end - bs + 2)
            return AVPROBE_SCORE_EXTENSION - 1; // seems to be valid MPC but no header yet
        if (header_found) {
            if (size < 11 || size > 28)
@@ -108,7 +108,7 @@ static int mpc8_probe(AVProbeData *p)

 static inline int64_t gb_get_v(GetBitContext *gb)
 {
-    int64_t v = 0;
+    uint64_t v = 0;
    int bits = 0;
    while(get_bits1(gb) && bits < 64-7){
        v <<= 7;
@@ -223,6 +223,10 @@ static int mpc8_read_header(AVFormatContext *s)
    while(!avio_feof(pb)){
        pos = avio_tell(pb);
        mpc8_get_chunk_header(pb, &tag, &size);
+        if (size < 0) {
+            av_log(s, AV_LOG_ERROR, "Invalid chunk length\n");
+            return AVERROR_INVALIDDATA;
+        }
        if(tag == TAG_STREAMHDR)
            break;
        mpc8_handle_chunk(s, tag, pos, size);
@@ -70,20 +70,23 @@ static int mpegps_probe(AVProbeData *p)
    int i;
    int sys = 0, pspack = 0, priv1 = 0, vid = 0;
    int audio = 0, invalid = 0, score = 0;
+    int endpes = 0;

    for (i = 0; i < p->buf_size; i++) {
        code = (code << 8) + p->buf[i];
        if ((code & 0xffffff00) == 0x100) {
            int len  = p->buf[i + 1] << 8 | p->buf[i + 2];
-            int pes  = check_pes(p->buf + i, p->buf + p->buf_size);
+            int pes  = endpes <= i && check_pes(p->buf + i, p->buf + p->buf_size);
            int pack = check_pack_header(p->buf + i);

            if (code == SYSTEM_HEADER_START_CODE)
                sys++;
            else if (code == PACK_START_CODE && pack)
                pspack++;
-            else if ((code & 0xf0) == VIDEO_ID && pes)
+            else if ((code & 0xf0) == VIDEO_ID && pes) {
+                endpes = i + len;
                vid++;
+            }
            // skip pes payload to avoid start code emulation for private
            // and audio streams
            else if ((code & 0xe0) == AUDIO_ID &&  pes) {audio++; i+=len;}
@@ -408,7 +408,7 @@ static int mv_read_packet(AVFormatContext *avctx, AVPacket *pkt)
    AVStream *st = avctx->streams[mv->stream_index];
    const AVIndexEntry *index;
    int frame = mv->frame[mv->stream_index];
-    int ret;
+    int64_t ret;
    uint64_t pos;

    if (frame < st->nb_index_entries) {
@@ -1976,7 +1976,7 @@ static int mxf_timestamp_to_str(uint64_t timestamp, char **str)
    if (!*str)
        return AVERROR(ENOMEM);
    if (!strftime(*str, 32, "%Y-%m-%d %H:%M:%S", &time))
-        str[0] = '\0';
+        (*str)[0] = '\0';

    return 0;
 }
@@ -174,7 +174,7 @@ static int nprobe(AVFormatContext *s, uint8_t *enc_header, unsigned size,
    taglen  = AV_RB32(&enc_header[pos + 32]);
    datalen = AV_RB32(&enc_header[pos + 36]) >> 4;

-    pos += 44L + taglen;
+    pos += 44LL + taglen;

    if (pos + (((uint64_t)datalen) << 4) > size)
        return -1;
@@ -464,7 +464,7 @@ static int oma_read_seek(struct AVFormatContext *s,
                         int stream_index, int64_t timestamp, int flags)
 {
    OMAContext *oc = s->priv_data;
-    int err = ff_pcm_read_seek(s, stream_index, timestamp, flags);
+    int64_t err = ff_pcm_read_seek(s, stream_index, timestamp, flags);

    if (!oc->encrypted)
        return err;
@@ -159,9 +159,9 @@ void ff_freeaddrinfo(struct addrinfo *res)
    }
 #endif /* HAVE_WINSOCK2_H */

-    av_free(res->ai_canonname);
-    av_free(res->ai_addr);
-    av_free(res);
+    av_freep(&res->ai_canonname);
+    av_freep(&res->ai_addr);
+    av_freep(&res);
 }

 int ff_getnameinfo(const struct sockaddr *sa, int salen,
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .5.3
 .5.6