doc/APIchanges: update

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-16 02:06:44 +02:00
154 changed files with 453 additions and 1193 deletions
@@ -1,31 +1,7 @@
 Entries are sorted chronologically from oldest to youngest within each release,
 releases are sorted from youngest to oldest.

-version 2.3.3:
- h264: fix grayscale only decoding with weighted prediction
- mjpegdec: support AV_PIX_FMT_YUV420P16 with upscale_h
- proresenc_ks: fix buffer overflow
- matroskadec: fix crash
-
-version 2.3.2:
- snow: fix null pointer dereference
- huffyucdec: fix overread
- vc1dec: fix crash
- iff: fix out of array access
- matroskaenc: fix assertion failure
- cdgraphics: fix infinite loop
- dvdsub_parser: fix infinite loop
- mpeg12dec: support decoding some broken files
- v4l2enc: fix crash
- h264_parser: fix handling huge resolutions
- h264_mp4toannexb_bsf: multiple bugfixes
-
-version 2.3.1:
- public AVDCT API/ABI for DCT functions
- g2meet: allow size changes within original sizes
- dv: improved error resilience, fixing Ticket2340 and Ticket2341
-
-version 2.3:
+version <next>:
 - AC3 fixed-point decoding
 - shuffleplanes filter
 - subfile protocol
@@ -14,6 +14,7 @@ patches and related discussions.
 Project Leader
 ==============

+Michael Niedermayer
  final design decisions


@@ -527,8 +528,8 @@ x86                                     Michael Niedermayer
 Releases
 ========

-2.3                                     Michael Niedermayer
 2.2                                     Michael Niedermayer
+2.1                                     Michael Niedermayer
 1.2                                     Michael Niedermayer

 If you want to maintain an older release, please contact us
@@ -110,7 +110,7 @@ endef

 $(foreach P,$(PROGS),$(eval $(call DOPROG,$(P:$(PROGSSUF)$(EXESUF)=))))

-ffprobe.o cmdutils.o libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
+ffprobe.o cmdutils.o : libavutil/ffversion.h

 $(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
 	$(CP) $< $@
@@ -1 +1 @@
-2.3.6
+2.2.git
@@ -7,10 +7,9 @@
   since the release of FFmpeg 2.2.

   In this release, there are lots of internal overhauls that make FFmpeg a
-   more accessible project for new developers. Many important new
-   optimizations and features like QTKit and AVFoundation input devices are
-   committed. Contributions done by Libav such as a new native Opus decoder
-   are also merged.
+   more accessible project for new developers. Many important new features
+   like QTKit and AVFoundation input devices are committed. Contributions done
+   by Libav such as a new native Opus decoder are also merged.

   Because of the increasing difficulty to maintain and lack of maintainers,
   we are very sorry to say that we have removed all Blackfin and SPARC
@@ -18,9 +17,8 @@
   interested in maintaining optimization for these two architecture, feel
   free to contact us and we will restore the code!

-   Oh, and since this release, this modern-looking release note is provided in
-   addition to the old-style Changelog file, to make it easier for you to
-   focus on the most important features in this release.
+   Since this release, the traditional Changelog file is upgraded to this
+   modern-looking release note. Old changelogs are moved to doc/Changelog.old.

   Enjoy!

@@ -35,9 +33,9 @@

       • libavutil      52.92.100
       • libavcodec     55.69.100
-       • libavformat    55.48.100
+       • libavformat    55.47.100
       • libavdevice    55.13.102
-       • libavfilter     4.11.100
+       • libavfilter     4.10.100
       • libswscale      2. 6.100
       • libswresample   0.19.100
       • libpostproc    52. 3.100
@@ -105,7 +103,7 @@
     Other interesting new features including hqx video filter, a pixel art
     scaling filter; a fixed-point AC-3 decoder contributed by Imagination
     Technologies; an On2 TrueMotion VP7 video decoder; an HTML5 WebVTT
-     subtitle encoder that allows creation of WebVTT from any text-based
+     subtitle decoder that allows creation of WebVTT from any text-based
     subtitles; and an 1-bit Direct Stream Digital audio decoder.

 ┌────────────────────────────┐
@@ -1857,7 +1857,7 @@ int read_yesno(void)

 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
 {
-    int64_t ret;
+    int ret;
    FILE *f = av_fopen_utf8(filename, "rb");

    if (!f) {
@@ -4528,7 +4528,6 @@ EOF
 fi

 check_ldflags -Wl,--as-needed
-check_ldflags -Wl,-z,noexecstack

 if check_func dlopen; then
    ldl=
@@ -5535,7 +5534,6 @@ enabled getenv || echo "#define getenv(x) NULL" >> $TMPH


 mkdir -p doc
-mkdir -p tests
 echo "@c auto-generated by configure" > doc/config.texi

 print_config ARCH_   "$config_files" $ARCH_LIST
@@ -35,10 +35,6 @@ API changes, most recent first:
  is now setting AVStream.time_base, instead of AVStream.codec.time_base as was
  done previously. The old method is now deprecated.

-2014-06-11 - 67d29da - lavc 55.66.101 - avcodec.h
-  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
  New field int64_t max_analyze_duration2 instead of deprecated
  int max_analyze_duration.
@@ -105,10 +101,10 @@ 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-xx - xxxxxxx - lavu 52.82.0 - fifo.h
  Add av_fifo_freep() function.

-2014-05-02 - ba52fb11 - lavu 52.81.100 - opt.h
+2014-05-02 - ba52fb11 - lavu 52.81.0 - opt.h
  Add av_opt_set_dict2() function.

 2014-05-01 - e77b985 / a2941c8 - lavc 55.60.103 / 55.50.3 - avcodec.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         = 2.3.6
+PROJECT_NUMBER         =

 # 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
@@ -116,10 +116,6 @@ static int open_output_file(const char *filename)
                || dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
            /* in this example, we choose transcoding to same codec */
            encoder = avcodec_find_encoder(dec_ctx->codec_id);
-            if (!encoder) {
-                av_log(NULL, AV_LOG_FATAL, "Neccessary encoder not found\n");
-                return AVERROR_INVALIDDATA;
-            }

            /* In this example, we transcode to same properties (picture size,
             * sample rate etc.). These properties can be changed for output
@@ -491,7 +491,7 @@ aeval=val(ch)/2:c=same
@item
 Invert phase of the second channel:
@example
-aeval=val(0)|-val(1)
+eval=val(0)|-val(1)
@end example
@end itemize

@@ -3968,7 +3968,7 @@ within the parameter list.
@item
 Show the text at the center of the video frame:
@example
-drawtext="fontsize=30:fontfile=FreeSerif.ttf:text='hello world':x=(w-text_w)/2:y=(h-text_h)/2"
+drawtext="fontsize=30:fontfile=FreeSerif.ttf:text='hello world':x=(w-text_w)/2:y=(h-text_h-line_h)/2"
@end example

@item
@@ -9318,7 +9318,7 @@ Default value is "all", which will cycle through the list of all tests.

 Some examples:
@example
-mptestsrc=t=dc_luma
+testsrc=t=dc_luma
@end example

 will generate a "dc_luma" test pattern.
@@ -483,21 +483,6 @@ ffplay -f lavfi "movie=test.avi[out0];amovie=test.wav[out1]"

@end itemize

-@section libcdio
-
-Audio-CD input device based on cdio.
-
-To enable this input device during configuration you need libcdio
-installed on your system.
-
-This device allows playing and grabbing from an Audio-CD.
-
-For example to copy with @command{ffmpeg} the entire Audio-CD in /dev/sr0,
-you may run the command:
-@example
-ffmpeg -f libcdio -i /dev/sr0 cd.wav
-@end example
-
@section libdc1394

 IIDC1394 input device, based on libdc1394 and libraw1394.
@@ -858,7 +858,7 @@ Return 1 if @var{x} is lesser than or equal to @var{y}, 0 otherwise.
 Return the maximum between @var{x} and @var{y}.

@item min(x, y)
-Return the minimum between @var{x} and @var{y}.
+Return the maximum between @var{x} and @var{y}.

@item mod(x, y)
 Compute the remainder of division of @var{x} by @var{y}.
@@ -578,14 +578,6 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
    AVCodecContext          *avctx = ost->st->codec;
    int ret;

-    if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) {
-        ost->st->codec->extradata = av_mallocz(ost->enc_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
-        if (ost->st->codec->extradata) {
-            memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size);
-            ost->st->codec->extradata_size = ost->enc_ctx->extradata_size;
-        }
-    }
-
    if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
        (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
        pkt->pts = pkt->dts = AV_NOPTS_VALUE;
@@ -1807,10 +1799,18 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
        for (i = 0; i < nb_filtergraphs; i++)
            if (ist_in_filtergraph(filtergraphs[i], ist)) {
                FilterGraph *fg = filtergraphs[i];
+                int j;
                if (configure_filtergraph(fg) < 0) {
                    av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
                    exit_program(1);
                }
+                for (j = 0; j < fg->nb_outputs; j++) {
+                    OutputStream *ost = fg->outputs[j]->ost;
+                    if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
+                        !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
+                        av_buffersink_set_frame_size(ost->filter->filter,
+                                                     ost->enc_ctx->frame_size);
+                }
            }
    }

@@ -3419,7 +3419,7 @@ static int process_input(int file_index)
    }

    /* add the stream-global side data to the first packet */
-    if (ist->nb_packets == 1) {
+    if (ist->nb_packets == 1)
        if (ist->st->nb_side_data)
            av_packet_split_side_data(&pkt);
        for (i = 0; i < ist->st->nb_side_data; i++) {
@@ -3435,7 +3435,6 @@ static int process_input(int file_index)

            memcpy(dst_data, src_sd->data, src_sd->size);
        }
-    }

    if (pkt.dts != AV_NOPTS_VALUE)
        pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
@@ -919,16 +919,6 @@ int configure_filtergraph(FilterGraph *fg)
    }

    fg->reconfiguration = 1;
-
-    for (i = 0; i < fg->nb_outputs; i++) {
-        OutputStream *ost = fg->outputs[i]->ost;
-        if (ost &&
-            ost->enc->type == AVMEDIA_TYPE_AUDIO &&
-            !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
-            av_buffersink_set_frame_size(ost->filter->filter,
-                                         ost->enc_ctx->frame_size);
-    }
-
    return 0;
 }

@@ -1828,7 +1828,7 @@ static int open_output_file(OptionsContext *o, const char *filename)
        /* pick the "best" stream of each type */

        /* video: highest resolution */
-        if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
+        if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
            int area = 0, idx = -1;
            int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
            for (i = 0; i < nb_input_streams; i++) {
@@ -1850,7 +1850,7 @@ static int open_output_file(OptionsContext *o, const char *filename)
        }

        /* audio: most channels */
-        if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
+        if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
            int channels = 0, idx = -1;
            for (i = 0; i < nb_input_streams; i++) {
                ist = input_streams[i];
@@ -2977,8 +2977,6 @@ static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
    AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
    int i;

-    *pbuffer = NULL;
-
    avc =  avformat_alloc_context();
    if (avc == NULL || !rtp_format) {
        return -1;
@@ -3015,7 +3013,7 @@ static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
    av_free(avc);
    av_free(avs);

-    return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM);
+    return strlen(*pbuffer);
 }

 static void rtsp_cmd_options(HTTPContext *c, const char *url)
@@ -15,7 +15,6 @@ HEADERS = avcodec.h                                                     \

 OBJS = allcodecs.o                                                      \
       audioconvert.o                                                   \
-       avdct.o                                                          \
       avpacket.o                                                       \
       avpicture.o                                                      \
       bitstream.o                                                      \
@@ -34,7 +34,7 @@ static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
    int size;
    union {
        uint64_t u64;
-        uint8_t  u8[8 + FF_INPUT_BUFFER_PADDING_SIZE];
+        uint8_t  u8[8];
    } tmp;

    tmp.u64 = av_be2ne64(state);
@@ -166,7 +166,7 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
    int err;
    union {
        uint64_t u64;
-        uint8_t  u8[8 + FF_INPUT_BUFFER_PADDING_SIZE];
+        uint8_t  u8[8];
    } tmp = { av_be2ne64(state) };
    AC3HeaderInfo hdr, *phdr = &hdr;
    GetBitContext gbc;
@@ -263,7 +263,7 @@ static void apply_channel_coupling(AC3EncodeContext *s)
                energy_cpl = energy[blk][CPL_CH][bnd];
                energy_ch = energy[blk][ch][bnd];
                blk1 = blk+1;
-                while (blk1 < s->num_blocks && !s->blocks[blk1].new_cpl_coords[ch]) {
+                while (!s->blocks[blk1].new_cpl_coords[ch] && blk1 < s->num_blocks) {
                    if (s->blocks[blk1].cpl_in_use) {
                        energy_cpl += energy[blk1][CPL_CH][bnd];
                        energy_ch += energy[blk1][ch][bnd];
@@ -1,124 +0,0 @@
-/*
- * Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "avcodec.h"
-#include "idctdsp.h"
-#include "fdctdsp.h"
-#include "avdct.h"
-
-#define OFFSET(x) offsetof(AVDCT,x)
-#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
-//these names are too long to be readable
-#define V AV_OPT_FLAG_VIDEO_PARAM
-#define A AV_OPT_FLAG_AUDIO_PARAM
-#define E AV_OPT_FLAG_ENCODING_PARAM
-#define D AV_OPT_FLAG_DECODING_PARAM
-
-static const AVOption avdct_options[] = {
-{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
-{"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
-{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
-{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
-{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
-{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
-{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
-
-{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
-{"auto", "autoselect a good one (default)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
-#if FF_API_ARCH_SH4
-{"sh4", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SH4 }, INT_MIN, INT_MAX, V|E|D, "idct"},
-#endif
-{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
-#if FF_API_ARCH_ALPHA
-{"simplealpha", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
-#endif
-{"ipp", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVIDMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
-{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
-{NULL},
-};
-
-static const AVClass avdct_class = {
-    .class_name              = "AVDCT",
-    .option                  = avdct_options,
-    .version                 = LIBAVUTIL_VERSION_INT,
-};
-
-const AVClass *avcodec_dct_get_class(void)
-{
-    return &avdct_class;
-}
-
-AVDCT *avcodec_dct_alloc(void)
-{
-    AVDCT *dsp = av_mallocz(sizeof(AVDCT));
-
-    if (!dsp)
-        return NULL;
-
-    dsp->av_class = &avdct_class;
-    av_opt_set_defaults(dsp);
-
-    return dsp;
-}
-
-int avcodec_dct_init(AVDCT *dsp)
-{
-    AVCodecContext *avctx = avcodec_alloc_context3(NULL);
-
-    if (!avctx)
-        return AVERROR(ENOMEM);
-
-    avctx->idct_algo = dsp->idct_algo;
-    avctx->dct_algo  = dsp->dct_algo;
-
-#define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name))
-
-#if CONFIG_IDCTDSP
-    {
-        IDCTDSPContext idsp;
-        ff_idctdsp_init(&idsp, avctx);
-        COPY(idsp, idct);
-        COPY(idsp, idct_permutation);
-    }
-#endif
-
-#if CONFIG_FDCTDSP
-    {
-        FDCTDSPContext fdsp;
-        ff_fdctdsp_init(&fdsp, avctx);
-        COPY(fdsp, fdct);
-    }
-#endif
-
-    avcodec_close(avctx);
-    av_free(avctx);
-
-    return 0;
-}
@@ -1,78 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_AVDCT_H
-#define AVCODEC_AVDCT_H
-
-#include "libavutil/opt.h"
-
-/**
- * AVDCT context.
- * @note function pointers can be NULL if the specific features have been
- *       disabled at build time.
- */
-typedef struct AVDCT {
-    const AVClass *av_class;
-
-    void (*idct)(int16_t *block /* align 16 */);
-
-    /**
-     * IDCT input permutation.
-     * Several optimized IDCTs need a permutated input (relative to the
-     * normal order of the reference IDCT).
-     * This permutation must be performed before the idct_put/add.
-     * Note, normally this can be merged with the zigzag/alternate scan<br>
-     * An example to avoid confusion:
-     * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
-     * - (x -> reference DCT -> reference IDCT -> x)
-     * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
-     *    -> simple_idct_mmx -> x)
-     * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
-     *    -> simple_idct_mmx -> ...)
-     */
-    uint8_t idct_permutation[64];
-
-    void (*fdct)(int16_t *block /* align 16 */);
-
-
-    /**
-     * DCT algorithm.
-     * must use AVOptions to set this field.
-     */
-    int dct_algo;
-
-    /**
-     * IDCT algorithm.
-     * must use AVOptions to set this field.
-     */
-    int idct_algo;
-} AVDCT;
-
-/**
- * Allocates a AVDCT context.
- * This needs to be initialized with avcodec_dct_init() after optionally
- * configuring it with AVOptions.
- *
- * To free it use av_free()
- */
-AVDCT *avcodec_dct_alloc(void);
-int avcodec_dct_init(AVDCT *);
-
-const AVClass *avcodec_dct_get_class(void);
-
-#endif /* AVCODEC_AVDCT_H */
@@ -32,10 +32,6 @@
 #include "cabac.h"
 #include "config.h"

-#ifndef UNCHECKED_BITSTREAM_READER
-#define UNCHECKED_BITSTREAM_READER !CONFIG_SAFE_BITSTREAM_READER
-#endif
-
 #if ARCH_AARCH64
 #   include "aarch64/cabac.h"
 #endif
@@ -353,9 +353,10 @@ static int cdg_decode_frame(AVCodecContext *avctx,
        *got_frame = 1;
    } else {
        *got_frame = 0;
+        buf_size   = 0;
    }

-    return avpkt->size;
+    return buf_size;
 }

 static av_cold int cdg_decode_end(AVCodecContext *avctx)
@@ -135,7 +135,7 @@ static int cinepak_decode_vectors (CinepakContext *s, cvid_strip *strip,
    const uint8_t   *eod = (data + size);
    uint32_t         flag, mask;
    uint8_t         *cb0, *cb1, *cb2, *cb3;
-    int             x, y;
+    unsigned int     x, y;
    char            *ip0, *ip1, *ip2, *ip3;

    flag = 0;
@@ -1215,8 +1215,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)

        q->num_subpackets++;
        s++;
-        if (s > FFMIN(MAX_SUBPACKETS, avctx->block_align)) {
-            avpriv_request_sample(avctx, "subpackets > %d", FFMIN(MAX_SUBPACKETS, avctx->block_align));
+        if (s > MAX_SUBPACKETS) {
+            avpriv_request_sample(avctx, "subpackets > %d", MAX_SUBPACKETS);
            return AVERROR_PATCHWELCOME;
        }
    }
@@ -2359,10 +2359,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #else
            if (s->xch_present && !s->xch_disable) {
 #endif
-                if (avctx->channel_layout & AV_CH_BACK_CENTER) {
-                    avpriv_request_sample(avctx, "XCh with Back center channel");
-                    return AVERROR_INVALIDDATA;
-                }
                avctx->channel_layout |= AV_CH_BACK_CENTER;
                if (s->lfe) {
                    avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
@@ -171,10 +171,6 @@ static inline int dirac_get_arith_uint(DiracArith *c, int follow_ctx, int data_c
 {
    int ret = 1;
    while (!dirac_get_arith_bit(c, follow_ctx)) {
-        if (ret >= 0x40000000) {
-            av_log(NULL, AV_LOG_ERROR, "dirac_get_arith_uint overflow\n");
-            return -1;
-        }
        ret <<= 1;
        ret += dirac_get_arith_bit(c, data_ctx);
        follow_ctx = ff_dirac_next_ctx[follow_ctx];
@@ -611,10 +611,10 @@ static av_always_inline void decode_subband_internal(DiracContext *s, SubBand *b

    top = 0;
    for (cb_y = 0; cb_y < cb_height; cb_y++) {
-        bottom = (b->height * (cb_y+1LL)) / cb_height;
+        bottom = (b->height * (cb_y+1)) / cb_height;
        left = 0;
        for (cb_x = 0; cb_x < cb_width; cb_x++) {
-            right = (b->width * (cb_x+1LL)) / cb_width;
+            right = (b->width * (cb_x+1)) / cb_width;
            codeblock(s, b, &gb, &c, left, right, top, bottom, blockcnt_one, is_arith);
            left = right;
        }
@@ -1003,8 +1003,8 @@ static int dirac_unpack_idwt_params(DiracContext *s)
        /* Codeblock parameters (core syntax only) */
        if (get_bits1(gb)) {
            for (i = 0; i <= s->wavelet_depth; i++) {
-                CHECKEDREAD(s->codeblock[i].width , tmp < 1 || tmp > (s->avctx->width >>s->wavelet_depth-i), "codeblock width invalid\n")
-                CHECKEDREAD(s->codeblock[i].height, tmp < 1 || tmp > (s->avctx->height>>s->wavelet_depth-i), "codeblock height invalid\n")
+                CHECKEDREAD(s->codeblock[i].width , tmp < 1, "codeblock width invalid\n")
+                CHECKEDREAD(s->codeblock[i].height, tmp < 1, "codeblock height invalid\n")
            }

            CHECKEDREAD(s->codeblock_mode, tmp > 1, "unknown codeblock mode\n")
@@ -38,7 +38,6 @@ typedef struct DNXHDContext {
    BlockDSPContext bdsp;
    int64_t cid;                        ///< compression id
    unsigned int width, height;
-    enum AVPixelFormat pix_fmt;
    unsigned int mb_width, mb_height;
    uint32_t mb_scan_index[68];         /* max for 1080p */
    int cur_field;                      ///< current interlaced field
@@ -142,7 +141,7 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,

    ctx->is_444 = 0;
    if (buf[0x4] == 0x2) {
-        ctx->pix_fmt = AV_PIX_FMT_YUV444P10;
+        ctx->avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
        ctx->avctx->bits_per_raw_sample = 10;
        if (ctx->bit_depth != 10) {
            ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
@@ -152,7 +151,7 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
        }
        ctx->is_444 = 1;
    } else if (buf[0x21] & 0x40) {
-        ctx->pix_fmt = AV_PIX_FMT_YUV422P10;
+        ctx->avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
        ctx->avctx->bits_per_raw_sample = 10;
        if (ctx->bit_depth != 10) {
            ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
@@ -161,7 +160,7 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
            ctx->decode_dct_block = dnxhd_decode_dct_block_10;
        }
    } else {
-        ctx->pix_fmt = AV_PIX_FMT_YUV422P;
+        ctx->avctx->pix_fmt = AV_PIX_FMT_YUV422P;
        ctx->avctx->bits_per_raw_sample = 8;
        if (ctx->bit_depth != 8) {
            ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
@@ -447,13 +446,7 @@ decode_coding_unit:
               avctx->width, avctx->height, ctx->width, ctx->height);
        first_field = 1;
    }
-    if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) {
-        av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n",
-               av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt));
-        first_field = 1;
-    }

-    avctx->pix_fmt = ctx->pix_fmt;
    ret = ff_set_dimensions(avctx, ctx->width, ctx->height);
    if (ret < 0)
        return ret;
@@ -45,11 +45,8 @@ static int dvdsub_parse(AVCodecParserContext *s,
    DVDSubParseContext *pc = s->priv_data;

    if (pc->packet_index == 0) {
-        if (buf_size < 2 || AV_RB16(buf) && buf_size < 6) {
-            if (buf_size)
-                av_log(avctx, AV_LOG_DEBUG, "Parser input %d too small\n", buf_size);
-            return buf_size;
-        }
+        if (buf_size < 2)
+            return 0;
        pc->packet_len = AV_RB16(buf);
        if (pc->packet_len == 0) /* HD-DVD subpicture packet */
            pc->packet_len = AV_RB32(buf+2);
@@ -105,9 +105,6 @@ static int decode_rle(uint8_t *bitmap, int linesize, int w, int h,
    int x, y, len, color;
    uint8_t *d;

-    if (start >= buf_size)
-        return -1;
-
    bit_len = (buf_size - start) * 8;
    init_get_bits(&gb, buf + start, bit_len);

@@ -359,12 +356,10 @@ static int decode_dvd_subtitles(DVDSubContext *ctx, AVSubtitle *sub_header,
                sub_header->rects[0] = av_mallocz(sizeof(AVSubtitleRect));
                sub_header->num_rects = 1;
                sub_header->rects[0]->pict.data[0] = bitmap;
-                if (decode_rle(bitmap, w * 2, w, (h + 1) / 2,
-                               buf, offset1, buf_size, is_8bit) < 0)
-                    goto fail;
-                if (decode_rle(bitmap + w, w * 2, w, h / 2,
-                               buf, offset2, buf_size, is_8bit) < 0)
-                    goto fail;
+                decode_rle(bitmap, w * 2, w, (h + 1) / 2,
+                           buf, offset1, buf_size, is_8bit);
+                decode_rle(bitmap + w, w * 2, w, h / 2,
+                           buf, offset2, buf_size, is_8bit);
                sub_header->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
                if (is_8bit) {
                    if (yuv_palette == 0)
@@ -329,11 +329,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
 {
    DxaDecContext * const c = avctx->priv_data;

-    if (avctx->width%4 || avctx->height%4) {
-        avpriv_request_sample(avctx, "dimensions are not a multiple of 4");
-        return AVERROR_INVALIDDATA;
-    }
-
    c->prev = av_frame_alloc();
    if (!c->prev)
        return AVERROR(ENOMEM);
@@ -1011,22 +1011,6 @@ static int decode_header(EXRContext *s)
    int current_channel_offset = 0;
    int magic_number, version, flags, i;

-    s->xmin               = ~0;
-    s->xmax               = ~0;
-    s->ymin               = ~0;
-    s->ymax               = ~0;
-    s->xdelta             = ~0;
-    s->ydelta             = ~0;
-    s->channel_offsets[0] = -1;
-    s->channel_offsets[1] = -1;
-    s->channel_offsets[2] = -1;
-    s->channel_offsets[3] = -1;
-    s->pixel_type         = EXR_UNKNOWN;
-    s->compression        = EXR_UNKN;
-    s->nb_channels        = 0;
-    s->w                  = 0;
-    s->h                  = 0;
-
    if (bytestream2_get_bytes_left(&s->gb) < 10) {
        av_log(s->avctx, AV_LOG_ERROR, "Header too short to parse.\n");
        return AVERROR_INVALIDDATA;
@@ -1367,6 +1351,21 @@ static av_cold int decode_init(AVCodecContext *avctx)
    float one_gamma = 1.0f / s->gamma;

    s->avctx              = avctx;
+    s->xmin               = ~0;
+    s->xmax               = ~0;
+    s->ymin               = ~0;
+    s->ymax               = ~0;
+    s->xdelta             = ~0;
+    s->ydelta             = ~0;
+    s->channel_offsets[0] = -1;
+    s->channel_offsets[1] = -1;
+    s->channel_offsets[2] = -1;
+    s->channel_offsets[3] = -1;
+    s->pixel_type         = EXR_UNKNOWN;
+    s->compression        = EXR_UNKN;
+    s->nb_channels        = 0;
+    s->w                  = 0;
+    s->h                  = 0;

    if ( one_gamma > 0.9999f && one_gamma < 1.0001f ) {
        for ( i = 0; i < 65536; ++i ) {
@@ -101,7 +101,7 @@ av_cold int ffv1_init_slice_state(FFV1Context *f, FFV1Context *fs)
 av_cold int ffv1_init_slices_state(FFV1Context *f)
 {
    int i, ret;
-    for (i = 0; i < f->max_slice_count; i++) {
+    for (i = 0; i < f->slice_count; i++) {
        FFV1Context *fs = f->slice_context[i];
        if ((ret = ffv1_init_slice_state(f, fs)) < 0)
            return AVERROR(ENOMEM);
@@ -113,10 +113,10 @@ av_cold int ffv1_init_slice_contexts(FFV1Context *f)
 {
    int i;

-    f->max_slice_count = f->num_h_slices * f->num_v_slices;
-    av_assert0(f->max_slice_count > 0);
+    f->slice_count = f->num_h_slices * f->num_v_slices;
+    av_assert0(f->slice_count > 0);

-    for (i = 0; i < f->max_slice_count; i++) {
+    for (i = 0; i < f->slice_count; i++) {
        FFV1Context *fs = av_mallocz(sizeof(*fs));
        int sx          = i % f->num_h_slices;
        int sy          = i / f->num_h_slices;
@@ -201,7 +201,7 @@ av_cold int ffv1_close(AVCodecContext *avctx)
        ff_thread_release_buffer(avctx, &s->last_picture);
    av_frame_free(&s->last_picture.f);

-    for (j = 0; j < s->max_slice_count; j++) {
+    for (j = 0; j < s->slice_count; j++) {
        FFV1Context *fs = s->slice_context[j];
        for (i = 0; i < s->plane_count; i++) {
            PlaneContext *p = &fs->plane[i];
@@ -215,14 +215,14 @@ av_cold int ffv1_close(AVCodecContext *avctx)
    av_freep(&avctx->stats_out);
    for (j = 0; j < s->quant_table_count; j++) {
        av_freep(&s->initial_states[j]);
-        for (i = 0; i < s->max_slice_count; i++) {
+        for (i = 0; i < s->slice_count; i++) {
            FFV1Context *sf = s->slice_context[i];
            av_freep(&sf->rc_stat2[j]);
        }
        av_freep(&s->rc_stat2[j]);
    }

-    for (i = 0; i < s->max_slice_count; i++)
+    for (i = 0; i < s->slice_count; i++)
        av_freep(&s->slice_context[i]);

    return 0;
@@ -117,7 +117,6 @@ typedef struct FFV1Context {

    struct FFV1Context *slice_context[MAX_SLICES];
    int slice_count;
-    int max_slice_count;
    int num_v_slices;
    int num_h_slices;
    int slice_width;
@@ -554,11 +554,8 @@ static int read_extra_header(FFV1Context *f)
    }

    f->quant_table_count = get_symbol(c, state, 0);
-    if (f->quant_table_count > (unsigned)MAX_QUANT_TABLES || !f->quant_table_count) {
-        av_log(f->avctx, AV_LOG_ERROR, "quant table count %d is invalid\n", f->quant_table_count);
-        f->quant_table_count = 0;
+    if (f->quant_table_count > (unsigned)MAX_QUANT_TABLES)
        return AVERROR_INVALIDDATA;
-    }

    for (i = 0; i < f->quant_table_count; i++) {
        f->context_count[i] = read_quant_tables(c, f->quant_tables[i]);
@@ -761,7 +758,6 @@ static int read_header(FFV1Context *f)
            av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
            return AVERROR_INVALIDDATA;
        }
-        f->slice_count = f->max_slice_count;
    } else if (f->version < 3) {
        f->slice_count = get_symbol(c, state, 0);
    } else {
@@ -776,8 +772,8 @@ static int read_header(FFV1Context *f)
            p -= size + trailer;
        }
    }
-    if (f->slice_count > (unsigned)MAX_SLICES || f->slice_count <= 0 || f->slice_count > f->max_slice_count) {
-        av_log(f->avctx, AV_LOG_ERROR, "slice count %d is invalid (max=%d)\n", f->slice_count, f->max_slice_count);
+    if (f->slice_count > (unsigned)MAX_SLICES || f->slice_count <= 0) {
+        av_log(f->avctx, AV_LOG_ERROR, "slice count %d is invalid\n", f->slice_count);
        return AVERROR_INVALIDDATA;
    }

@@ -1000,7 +996,6 @@ static int init_thread_copy(AVCodecContext *avctx)
    f->picture.f      = NULL;
    f->last_picture.f = NULL;
    f->sample_buffer  = NULL;
-    f->max_slice_count = 0;
    f->slice_count = 0;

    for (i = 0; i < f->quant_table_count; i++) {
@@ -1071,7 +1066,7 @@ static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
        av_assert0(!fdst->sample_buffer);
    }

-    av_assert1(fdst->max_slice_count == fsrc->max_slice_count);
+    av_assert1(fdst->slice_count == fsrc->slice_count);


    ff_thread_release_buffer(dst, &fdst->picture);
@@ -955,7 +955,6 @@ slices_ok:

    if ((ret = ffv1_init_slice_contexts(s)) < 0)
        return ret;
-    s->slice_count = s->max_slice_count;
    if ((ret = ffv1_init_slices_state(s)) < 0)
        return ret;

@@ -965,7 +964,7 @@ slices_ok:
        if (!avctx->stats_out)
            return AVERROR(ENOMEM);
        for (i = 0; i < s->quant_table_count; i++)
-            for (j = 0; j < s->max_slice_count; j++) {
+            for (j = 0; j < s->slice_count; j++) {
                FFV1Context *sf = s->slice_context[j];
                av_assert0(!sf->rc_stat2[i]);
                sf->rc_stat2[i] = av_mallocz(s->context_count[i] *
@@ -1189,7 +1188,6 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
            for (i = 0; i < f->quant_table_count; i++)
                memset(f->rc_stat2[i], 0, f->context_count[i] * sizeof(*f->rc_stat2[i]));

-            av_assert0(f->slice_count == f->max_slice_count);
            for (j = 0; j < f->slice_count; j++) {
                FFV1Context *fs = f->slice_context[j];
                for (i = 0; i < 256; i++) {
@@ -471,10 +471,10 @@ static int decode_frame(FLACContext *s)
        ret = allocate_buffers(s);
        if (ret < 0)
            return ret;
+        ff_flacdsp_init(&s->dsp, s->avctx->sample_fmt, s->bps);
        s->got_streaminfo = 1;
        dump_headers(s->avctx, (FLACStreaminfo *)s);
    }
-    ff_flacdsp_init(&s->dsp, s->avctx->sample_fmt, s->bps);

 //    dump_headers(s->avctx, (FLACStreaminfo *)s);

@@ -90,7 +90,6 @@ typedef struct G2MContext {

    int        compression;
    int        width, height, bpp;
-    int        orig_width, orig_height;
    int        tile_width, tile_height;
    int        tiles_x, tiles_y, tile_x, tile_y;

@@ -713,8 +712,8 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
            }
            c->width  = bytestream2_get_be32(&bc);
            c->height = bytestream2_get_be32(&bc);
-            if (c->width  < 16 || c->width  > c->orig_width ||
-                c->height < 16 || c->height > c->orig_height) {
+            if (c->width  < 16 || c->width  > avctx->width ||
+                c->height < 16 || c->height > avctx->height) {
                av_log(avctx, AV_LOG_ERROR,
                       "Invalid frame dimensions %dx%d\n",
                       c->width, c->height);
@@ -736,10 +735,8 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
            }
            c->tile_width  = bytestream2_get_be32(&bc);
            c->tile_height = bytestream2_get_be32(&bc);
-            if (c->tile_width <= 0 || c->tile_height <= 0 ||
-                ((c->tile_width | c->tile_height) & 0xF) ||
-                c->tile_width * 4LL * c->tile_height >= INT_MAX
-            ) {
+            if (!c->tile_width || !c->tile_height ||
+                ((c->tile_width | c->tile_height) & 0xF)) {
                av_log(avctx, AV_LOG_ERROR,
                       "Invalid tile dimensions %dx%d\n",
                       c->tile_width, c->tile_height);
@@ -885,10 +882,6 @@ static av_cold int g2m_decode_init(AVCodecContext *avctx)

    avctx->pix_fmt = AV_PIX_FMT_RGB24;

-    // store original sizes and check against those if resize happens
-    c->orig_width  = avctx->width;
-    c->orig_height = avctx->height;
-
    return 0;
 }

@@ -113,9 +113,6 @@ typedef struct RL_VLC_ELEM {
 * LAST_SKIP_BITS(name, gb, num)
 *   Like SKIP_BITS, to be used if next call is UPDATE_CACHE or CLOSE_READER.
 *
- * BITS_LEFT(name, gb)
- *   Return the number of bits left
- *
 * For examples see get_bits, show_bits, skip_bits, get_vlc.
 */

@@ -182,8 +179,6 @@ typedef struct RL_VLC_ELEM {
    name ## _index = FFMIN(name ## _size_plus8, name ## _index + (num))
 #endif

-#define BITS_LEFT(name, gb) ((int)((gb)->size_in_bits - name ## _index))
-
 #define SKIP_BITS(name, gb, num)                \
    do {                                        \
        SKIP_CACHE(name, gb, num);              \
@@ -258,21 +258,26 @@ static int gif_read_image(GifState *s, AVFrame *frame)
            case 1:
                y1 += 8;
                ptr += linesize * 8;
+                if (y1 >= height) {
+                    y1 = pass ? 2 : 4;
+                    ptr = ptr1 + linesize * y1;
+                    pass++;
+                }
                break;
            case 2:
                y1 += 4;
                ptr += linesize * 4;
+                if (y1 >= height) {
+                    y1 = 1;
+                    ptr = ptr1 + linesize;
+                    pass++;
+                }
                break;
            case 3:
                y1 += 2;
                ptr += linesize * 2;
                break;
            }
-            while (y1 >= height) {
-                y1 = 4 >> pass;
-                ptr = ptr1 + linesize * y1;
-                pass++;
-            }
        } else {
            ptr += linesize;
        }
@@ -336,14 +336,6 @@ static int decode_slice(MpegEncContext *s)
        s->padding_bug_score += 32;
    }

-    if (s->codec_id == AV_CODEC_ID_H263          &&
-        (s->workaround_bugs & FF_BUG_AUTODETECT) &&
-        get_bits_left(&s->gb) >= 64              &&
-        AV_RB64(s->gb.buffer_end - 8) == 0xCDCDCDCDFC7F0000) {
-
-        s->padding_bug_score += 32;
-    }
-
    if (s->workaround_bugs & FF_BUG_AUTODETECT) {
        if (s->padding_bug_score > -2 && !s->data_partitioning)
            s->workaround_bugs |= FF_BUG_NO_PADDING;
@@ -215,18 +215,18 @@ int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)

    if ((h->left_samples_available & 0x8080) != 0x8080) {
        mode = left[mode];
-        if (mode < 0) {
-            av_log(h->avctx, AV_LOG_ERROR,
-                   "left block unavailable for requested intra mode at %d %d\n",
-                   h->mb_x, h->mb_y);
-            return AVERROR_INVALIDDATA;
-        }
        if (is_chroma && (h->left_samples_available & 0x8080)) {
            // mad cow disease mode, aka MBAFF + constrained_intra_pred
            mode = ALZHEIMER_DC_L0T_PRED8x8 +
                   (!(h->left_samples_available & 0x8000)) +
                   2 * (mode == DC_128_PRED8x8);
        }
+        if (mode < 0) {
+            av_log(h->avctx, AV_LOG_ERROR,
+                   "left block unavailable for requested intra mode at %d %d\n",
+                   h->mb_x, h->mb_y);
+            return AVERROR_INVALIDDATA;
+        }
    }

    return mode;
@@ -248,7 +248,7 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,

 #define STARTCODE_TEST                                                  \
    if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) {         \
-        if (src[i + 2] != 3 && src[i + 2] != 0) {                       \
+        if (src[i + 2] != 3) {                                          \
            /* startcode, so we must be past the end */                 \
            length = i;                                                 \
        }                                                               \
@@ -321,7 +321,7 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
        if (src[si + 2] > 3) {
            dst[di++] = src[si++];
            dst[di++] = src[si++];
-        } else if (src[si] == 0 && src[si + 1] == 0 && src[si + 2] != 0) {
+        } else if (src[si] == 0 && src[si + 1] == 0) {
            if (src[si + 2] == 3) { // escape
                dst[di++]  = 0;
                dst[di++]  = 0;
@@ -392,7 +392,6 @@ void ff_h264_free_tables(H264Context *h, int free_rbsp)
    if (free_rbsp && h->DPB) {
        for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
            ff_h264_unref_picture(h, &h->DPB[i]);
-        memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
        av_freep(&h->DPB);
    } else if (h->DPB) {
        for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
@@ -842,10 +841,10 @@ static void decode_postinit(H264Context *h, int setup_finished)
            stereo->type = AV_STEREO3D_CHECKERBOARD;
            break;
        case 1:
-            stereo->type = AV_STEREO3D_COLUMNS;
+            stereo->type = AV_STEREO3D_LINES;
            break;
        case 2:
-            stereo->type = AV_STEREO3D_LINES;
+            stereo->type = AV_STEREO3D_COLUMNS;
            break;
        case 3:
            if (h->quincunx_subsampling)
@@ -991,16 +990,6 @@ int ff_pred_weight_table(H264Context *h)
    h->luma_log2_weight_denom = get_ue_golomb(&h->gb);
    if (h->sps.chroma_format_idc)
        h->chroma_log2_weight_denom = get_ue_golomb(&h->gb);
-
-    if (h->luma_log2_weight_denom > 7U) {
-        av_log(h->avctx, AV_LOG_ERROR, "luma_log2_weight_denom %d is out of range\n", h->luma_log2_weight_denom);
-        h->luma_log2_weight_denom = 0;
-    }
-    if (h->chroma_log2_weight_denom > 7U) {
-        av_log(h->avctx, AV_LOG_ERROR, "chroma_log2_weight_denom %d is out of range\n", h->chroma_log2_weight_denom);
-        h->chroma_log2_weight_denom = 0;
-    }
-
    luma_def   = 1 << h->luma_log2_weight_denom;
    chroma_def = 1 << h->chroma_log2_weight_denom;

@@ -1341,6 +1330,43 @@ int ff_set_ref_count(H264Context *h)

 static const uint8_t start_code[] = { 0x00, 0x00, 0x01 };

+static int find_start_code(const uint8_t *buf, int buf_size,
+                           int buf_index, int next_avc)
+{
+    // start code prefix search
+    for (; buf_index + 3 < next_avc; buf_index++)
+        // This should always succeed in the first iteration.
+        if (buf[buf_index]     == 0 &&
+            buf[buf_index + 1] == 0 &&
+            buf[buf_index + 2] == 1)
+            break;
+
+    buf_index += 3;
+
+    if (buf_index >= buf_size)
+        return buf_size;
+
+    return buf_index;
+}
+
+static int get_avc_nalsize(H264Context *h, const uint8_t *buf,
+                           int buf_size, int *buf_index)
+{
+    int i, nalsize = 0;
+
+    if (*buf_index >= buf_size - h->nal_length_size)
+        return -1;
+
+    for (i = 0; i < h->nal_length_size; i++)
+        nalsize = (nalsize << 8) | buf[(*buf_index)++];
+    if (nalsize <= 0 || nalsize > buf_size - *buf_index) {
+        av_log(h->avctx, AV_LOG_ERROR,
+               "AVC: nal size %d\n", nalsize);
+        return -1;
+    }
+    return nalsize;
+}
+
 static int get_bit_length(H264Context *h, const uint8_t *buf,
                          const uint8_t *ptr, int dst_length,
                          int i, int next_avc)
@@ -37,7 +37,6 @@
 #include "h264dsp.h"
 #include "h264pred.h"
 #include "h264qpel.h"
-#include "internal.h" // for avpriv_find_start_code()
 #include "mpegutils.h"
 #include "parser.h"
 #include "qpeldsp.h"
@@ -338,7 +337,6 @@ typedef struct H264Picture {
 * H264Context
 */
 typedef struct H264Context {
-    AVClass *av_class;
    AVCodecContext *avctx;
    VideoDSPContext vdsp;
    H264DSPContext h264dsp;
@@ -751,7 +749,7 @@ typedef struct H264Context {

    int16_t slice_row[MAX_SLICES]; ///< to detect when MAX_SLICES is too low

-    uint8_t parse_history[6];
+    uint8_t parse_history[4];
    int parse_history_count;
    int parse_last_mb;
    uint8_t *edge_emu_buffer;
@@ -1094,34 +1092,6 @@ static av_always_inline int get_dct8x8_allowed(H264Context *h)
                  0x0001000100010001ULL));
 }

-static inline int find_start_code(const uint8_t *buf, int buf_size,
-                           int buf_index, int next_avc)
-{
-    uint32_t state = -1;
-
-    buf_index = avpriv_find_start_code(buf + buf_index, buf + next_avc + 1, &state) - buf - 1;
-
-    return FFMIN(buf_index, buf_size);
-}
-
-static inline int get_avc_nalsize(H264Context *h, const uint8_t *buf,
-                           int buf_size, int *buf_index)
-{
-    int i, nalsize = 0;
-
-    if (*buf_index >= buf_size - h->nal_length_size)
-        return -1;
-
-    for (i = 0; i < h->nal_length_size; i++)
-        nalsize = ((unsigned)nalsize << 8) | buf[(*buf_index)++];
-    if (nalsize <= 0 || nalsize > buf_size - *buf_index) {
-        av_log(h->avctx, AV_LOG_ERROR,
-               "AVC: nal size %d\n", nalsize);
-        return -1;
-    }
-    return nalsize;
-}
-
 int ff_h264_field_end(H264Context *h, int in_setup);

 int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src);
@@ -420,12 +420,10 @@ static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
            int weight1 = 64 - weight0;
            luma_weight_avg(dest_y, tmp_y, h->mb_linesize,
                            height, 5, weight0, weight1, 0);
-            if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
-                chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
-                                  chroma_height, 5, weight0, weight1, 0);
-                chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
-                                  chroma_height, 5, weight0, weight1, 0);
-            }
+            chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
+                              chroma_height, 5, weight0, weight1, 0);
+            chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
+                              chroma_height, 5, weight0, weight1, 0);
        } else {
            luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height,
                            h->luma_log2_weight_denom,
@@ -433,20 +431,18 @@ static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
                            h->luma_weight[refn1][1][0],
                            h->luma_weight[refn0][0][1] +
                            h->luma_weight[refn1][1][1]);
-            if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
-                chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height,
-                                  h->chroma_log2_weight_denom,
-                                  h->chroma_weight[refn0][0][0][0],
-                                  h->chroma_weight[refn1][1][0][0],
-                                  h->chroma_weight[refn0][0][0][1] +
-                                  h->chroma_weight[refn1][1][0][1]);
-                chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height,
-                                  h->chroma_log2_weight_denom,
-                                  h->chroma_weight[refn0][0][1][0],
-                                  h->chroma_weight[refn1][1][1][0],
-                                  h->chroma_weight[refn0][0][1][1] +
-                                  h->chroma_weight[refn1][1][1][1]);
-            }
+            chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height,
+                              h->chroma_log2_weight_denom,
+                              h->chroma_weight[refn0][0][0][0],
+                              h->chroma_weight[refn1][1][0][0],
+                              h->chroma_weight[refn0][0][0][1] +
+                              h->chroma_weight[refn1][1][0][1]);
+            chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height,
+                              h->chroma_log2_weight_denom,
+                              h->chroma_weight[refn0][0][1][0],
+                              h->chroma_weight[refn1][1][1][0],
+                              h->chroma_weight[refn0][0][1][1] +
+                              h->chroma_weight[refn1][1][1][1]);
        }
    } else {
        int list     = list1 ? 1 : 0;
@@ -460,17 +456,15 @@ static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
                       h->luma_log2_weight_denom,
                       h->luma_weight[refn][list][0],
                       h->luma_weight[refn][list][1]);
-        if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
-            if (h->use_weight_chroma) {
-                chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height,
-                                 h->chroma_log2_weight_denom,
-                                 h->chroma_weight[refn][list][0][0],
-                                 h->chroma_weight[refn][list][0][1]);
-                chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height,
-                                 h->chroma_log2_weight_denom,
-                                 h->chroma_weight[refn][list][1][0],
-                                 h->chroma_weight[refn][list][1][1]);
-            }
+        if (h->use_weight_chroma) {
+            chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height,
+                             h->chroma_log2_weight_denom,
+                             h->chroma_weight[refn][list][0][0],
+                             h->chroma_weight[refn][list][0][1]);
+            chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height,
+                             h->chroma_log2_weight_denom,
+                             h->chroma_weight[refn][list][1][0],
+                             h->chroma_weight[refn][list][1][1]);
        }
    }
 }
@@ -28,7 +28,6 @@
 typedef struct H264BSFContext {
    uint8_t  length_size;
    uint8_t  first_idr;
-    uint8_t  idr_sps_pps_seen;
    int      extradata_parsed;
 } H264BSFContext;

@@ -156,7 +155,6 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
            return ret;
        ctx->length_size      = ret;
        ctx->first_idr        = 1;
-        ctx->idr_sps_pps_seen = 0;
        ctx->extradata_parsed = 1;
    }

@@ -173,20 +171,11 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
        buf      += ctx->length_size;
        unit_type = *buf & 0x1f;

-        if (nal_size > buf_end - buf || nal_size < 0)
+        if (buf + nal_size > buf_end || nal_size < 0)
            goto fail;

-        if (ctx->first_idr && (unit_type == 7 || unit_type == 8))
-            ctx->idr_sps_pps_seen = 1;
-
-        /* if this is a new IDR picture following an IDR picture, reset the idr flag.
-         * Just check first_mb_in_slice to be 0 as this is the simplest solution.
-         * This could be checking idr_pic_id instead, but would complexify the parsing. */
-        if (!ctx->first_idr && unit_type == 5 && (buf[1] & 0x80))
-            ctx->first_idr = 1;
-
-        /* prepend only to the first type 5 NAL unit of an IDR picture, if no sps/pps are already present */
-        if (ctx->first_idr && unit_type == 5 && !ctx->idr_sps_pps_seen) {
+        /* prepend only to the first type 5 NAL unit of an IDR picture */
+        if (ctx->first_idr && (unit_type == 5 || unit_type == 7 || unit_type == 8)) {
            if ((ret=alloc_and_copy(poutbuf, poutbuf_size,
                               avctx->extradata, avctx->extradata_size,
                               buf, nal_size)) < 0)
@@ -196,10 +185,8 @@ static int h264_mp4toannexb_filter(AVBitStreamFilterContext *bsfc,
            if ((ret=alloc_and_copy(poutbuf, poutbuf_size,
                               NULL, 0, buf, nal_size)) < 0)
                goto fail;
-            if (!ctx->first_idr && unit_type == 1) {
+            if (!ctx->first_idr && unit_type == 1)
                ctx->first_idr = 1;
-                ctx->idr_sps_pps_seen = 0;
-            }
        }

        buf        += nal_size;
@@ -92,7 +92,7 @@ static int h264_find_frame_end(H264Context *h, const uint8_t *buf,
            state = 7;
        } else {
            h->parse_history[h->parse_history_count++]= buf[i];
-            if (h->parse_history_count>5) {
+            if (h->parse_history_count>3) {
                unsigned int mb, last_mb= h->parse_last_mb;
                GetBitContext gb;

@@ -120,7 +120,7 @@ found:
    pc->frame_start_found = 0;
    if (h->is_avc)
        return next_avc;
-    return i - (state & 5) - 5 * (state > 7);
+    return i - (state & 5) - 3 * (state > 7);
 }

 static int scan_mmco_reset(AVCodecParserContext *s)
@@ -203,10 +203,10 @@ static int scan_mmco_reset(AVCodecParserContext *s)
 */
 static inline int parse_nal_units(AVCodecParserContext *s,
                                  AVCodecContext *avctx,
-                                  const uint8_t * const buf, int buf_size)
+                                  const uint8_t *buf, int buf_size)
 {
    H264Context *h         = s->priv_data;
-    int buf_index, next_avc;
+    const uint8_t *buf_end = buf + buf_size;
    unsigned int pps_id;
    unsigned int slice_type;
    int state = -1, got_reset = 0;
@@ -226,26 +226,26 @@ static inline int parse_nal_units(AVCodecParserContext *s,
    if (!buf_size)
        return 0;

-    buf_index     = 0;
-    next_avc      = h->is_avc ? 0 : buf_size;
    for (;;) {
        int src_length, dst_length, consumed, nalsize = 0;
-
-        if (buf_index >= next_avc) {
-            nalsize = get_avc_nalsize(h, buf, buf_size, &buf_index);
-            if (nalsize < 0)
+        if (h->is_avc) {
+            int i;
+            if (h->nal_length_size >= buf_end - buf) break;
+            nalsize = 0;
+            for (i = 0; i < h->nal_length_size; i++)
+                nalsize = (nalsize << 8) | *buf++;
+            if (nalsize <= 0 || nalsize > buf_end - buf) {
+                av_log(h->avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
                break;
-            next_avc = buf_index + nalsize;
+            }
+            src_length = nalsize;
        } else {
-            buf_index = find_start_code(buf, buf_size, buf_index, next_avc);
-            if (buf_index >= buf_size)
-                break;
-            if (buf_index >= next_avc)
-                continue;
+        buf = avpriv_find_start_code(buf, buf_end, &state);
+        if (buf >= buf_end)
+            break;
+        --buf;
+        src_length = buf_end - buf;
        }
-        src_length = next_avc - buf_index;
-
-        state = buf[buf_index];
        switch (state & 0x1f) {
        case NAL_SLICE:
        case NAL_IDR_SLICE:
@@ -262,13 +262,10 @@ static inline int parse_nal_units(AVCodecParserContext *s,
            }
            break;
        }
-        ptr = ff_h264_decode_nal(h, buf + buf_index, &dst_length,
-                                 &consumed, src_length);
+        ptr = ff_h264_decode_nal(h, buf, &dst_length, &consumed, src_length);
        if (ptr == NULL || dst_length < 0)
            break;

-        buf_index += consumed;
-
        init_get_bits(&h->gb, ptr, 8 * dst_length);
        switch (h->nal_unit_type) {
        case NAL_SPS:
@@ -443,6 +440,7 @@ static inline int parse_nal_units(AVCodecParserContext *s,

            return 0; /* no need to evaluate the rest */
        }
+        buf += h->is_avc ? nalsize : consumed;
    }
    if (q264)
        return 0;
@@ -586,17 +586,6 @@ int ff_h264_update_thread_context(AVCodecContext *dst,
        h->mb_type_pool      = NULL;
        h->ref_index_pool    = NULL;
        h->motion_val_pool   = NULL;
-        h->intra4x4_pred_mode= NULL;
-        h->non_zero_count    = NULL;
-        h->slice_table_base  = NULL;
-        h->slice_table       = NULL;
-        h->cbp_table         = NULL;
-        h->chroma_pred_mode_table = NULL;
-        memset(h->mvd_table, 0, sizeof(h->mvd_table));
-        h->direct_table      = NULL;
-        h->list_counts       = NULL;
-        h->mb2b_xy           = NULL;
-        h->mb2br_xy          = NULL;
        for (i = 0; i < 2; i++) {
            h->rbsp_buffer[i] = NULL;
            h->rbsp_buffer_size[i] = 0;
@@ -108,7 +108,7 @@ static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
    if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
        goto fail;

-    s->filter_slice_edges = av_mallocz(ctb_count);
+    s->filter_slice_edges = av_malloc(ctb_count);
    s->tab_slice_address  = av_malloc_array(pic_size_in_ctb,
                                      sizeof(*s->tab_slice_address));
    s->qp_y_tab           = av_malloc_array(pic_size_in_ctb,
@@ -746,8 +746,6 @@ static int hls_slice_header(HEVCContext *s)
    s->HEVClc->tu.cu_qp_offset_cb = 0;
    s->HEVClc->tu.cu_qp_offset_cr = 0;

-    s->no_rasl_output_flag = IS_IDR(s) || IS_BLA(s) || (s->nal_unit_type == NAL_CRA_NUT && s->last_eos);
-
    return 0;
 }

@@ -980,7 +978,7 @@ static int hls_transform_unit(HEVCContext *s, int x0, int y0,
                        for (i = 0; i < (size * size); i++) {
                            coeffs[i] = ((lc->tu.res_scale_val * coeffs_y[i]) >> 3);
                        }
-                        s->hevcdsp.transform_add[log2_trafo_size_c-2](dst, coeffs, stride);
+                        s->hevcdsp.transform_add[log2_trafo_size-2](dst, coeffs, stride);
                    }
            }

@@ -1009,7 +1007,7 @@ static int hls_transform_unit(HEVCContext *s, int x0, int y0,
                        for (i = 0; i < (size * size); i++) {
                            coeffs[i] = ((lc->tu.res_scale_val * coeffs_y[i]) >> 3);
                        }
-                        s->hevcdsp.transform_add[log2_trafo_size_c-2](dst, coeffs, stride);
+                        s->hevcdsp.transform_add[log2_trafo_size-2](dst, coeffs, stride);
                    }
            }
        } else if (blk_idx == 3) {
@@ -2380,8 +2378,6 @@ static int hls_decode_entry_wpp(AVCodecContext *avctxt, void *input_ctb_row, int

        if (more_data < 0) {
            s->tab_slice_address[ctb_addr_rs] = -1;
-            avpriv_atomic_int_set(&s1->wpp_err,  1);
-            ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
            return more_data;
        }

@@ -3310,7 +3306,6 @@ static int hevc_update_thread_context(AVCodecContext *dst,
    s->pocTid0    = s0->pocTid0;
    s->max_ra     = s0->max_ra;
    s->eos        = s0->eos;
-    s->no_rasl_output_flag = s0->no_rasl_output_flag;

    s->is_nalff        = s0->is_nalff;
    s->nal_length_size = s0->nal_length_size;
@@ -3405,7 +3400,6 @@ static av_cold int hevc_decode_init(AVCodecContext *avctx)

    s->enable_parallel_tiles = 0;
    s->picture_struct = 0;
-    s->eos = 1;

    if(avctx->active_thread_type & FF_THREAD_SLICE)
        s->threads_number = avctx->thread_count;
@@ -3447,7 +3441,6 @@ static void hevc_decode_flush(AVCodecContext *avctx)
    HEVCContext *s = avctx->priv_data;
    ff_hevc_flush_dpb(s);
    s->max_ra = INT_MAX;
-    s->eos = 1;
 }

 #define OFFSET(x) offsetof(HEVCContext, x)
@@ -850,7 +850,6 @@ typedef struct HEVCContext {
    int bs_height;

    int is_decoded;
-    int no_rasl_output_flag;

    HEVCPredContext hpc;
    HEVCDSPContext hevcdsp;
@@ -865,11 +865,6 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
    sps->long_term_ref_pics_present_flag = get_bits1(gb);
    if (sps->long_term_ref_pics_present_flag) {
        sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
-        if (sps->num_long_term_ref_pics_sps > 31U) {
-            av_log(0, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n",
-                   sps->num_long_term_ref_pics_sps);
-            goto err;
-        }
        for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
            sps->lt_ref_pic_poc_lsb_sps[i]       = get_bits(gb, sps->log2_max_poc_lsb);
            sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
@@ -1169,14 +1164,6 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
    if (pps->cu_qp_delta_enabled_flag)
        pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);

-    if (pps->diff_cu_qp_delta_depth < 0 ||
-        pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
-        av_log(s->avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
-               pps->diff_cu_qp_delta_depth);
-        ret = AVERROR_INVALIDDATA;
-        goto err;
-    }
-
    pps->cb_qp_offset = get_se_golomb(gb);
    if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
        av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
@@ -1302,8 +1289,7 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
        if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
            av_log(s->avctx, AV_LOG_ERROR,
                   "PPS extension flag is partially implemented.\n");
-            if ((ret = pps_range_extensions(s, pps, sps)) < 0)
-                goto err;
+            pps_range_extensions(s, pps, sps);
        }
    }

@@ -163,7 +163,7 @@ int ff_hevc_output_frame(HEVCContext *s, AVFrame *out, int flush)
        int min_poc   = INT_MAX;
        int i, min_idx, ret;

-        if (s->sh.no_output_of_prior_pics_flag == 1 && s->no_rasl_output_flag == 1) {
+        if (s->sh.no_output_of_prior_pics_flag == 1) {
            for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
                HEVCFrame *frame = &s->DPB[i];
                if ((frame->flags & HEVC_FRAME_FLAG_OUTPUT) && frame->poc != s->poc &&
@@ -625,9 +625,9 @@ static void decode_422_bitstream(HYuvContext *s, int count)
            READ_2PIX(s->temp[0][2 * i    ], s->temp[1][i], 1);
            READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
        }
-        for (; i < count && BITS_LEFT(re, &s->gb) > 0; i++) {
+        for (; i < count && get_bits_left(&s->gb) > 0; i++) {
            READ_2PIX(s->temp[0][2 * i    ], s->temp[1][i], 1);
-            if (BITS_LEFT(re, &s->gb) <= 0) break;
+            if (get_bits_left(&s->gb) <= 0) break;
            READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
        }
        for (; i < count; i++)
@@ -666,7 +666,7 @@ static void decode_plane_bitstream(HYuvContext *s, int count, int plane)
    if (s->bps <= 8) {
        OPEN_READER(re, &s->gb);
        if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
-            for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) {
+            for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
                READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits);
            }
        } else {
@@ -678,7 +678,7 @@ static void decode_plane_bitstream(HYuvContext *s, int count, int plane)
    } else if (s->bps <= 14) {
        OPEN_READER(re, &s->gb);
        if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
-            for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) {
+            for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
                READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits);
            }
        } else {
@@ -707,7 +707,7 @@ static void decode_gray_bitstream(HYuvContext *s, int count)
    count/=2;

    if (count >= (get_bits_left(&s->gb)) / (32 * 2)) {
-        for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) {
+        for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
            READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0);
        }
    } else {
@@ -724,7 +724,7 @@ static av_always_inline void decode_bgr_1(HYuvContext *s, int count,
    int i;
    OPEN_READER(re, &s->gb);

-    for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) {
+    for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
        unsigned int index;
        int code, n;

@@ -677,15 +677,11 @@ static int decode_frame(AVCodecContext *avctx,
    const uint8_t *buf_end = buf + buf_size;
    int y, plane, res;
    GetByteContext gb;
-    const AVPixFmtDescriptor *desc;

    if ((res = extract_header(avctx, avpkt)) < 0)
        return res;
    if ((res = ff_reget_buffer(avctx, s->frame)) < 0)
        return res;
-
-    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
-
    if (!s->init && avctx->bits_per_coded_sample <= 8 &&
        avctx->pix_fmt == AV_PIX_FMT_PAL8) {
        if ((res = cmap_read_palette(avctx, (uint32_t *)s->frame->data[1])) < 0)
@@ -725,6 +721,7 @@ static int decode_frame(AVCodecContext *avctx,
            } else
                return unsupported(avctx);
        } else if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) {
+            const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
            int raw_width = avctx->width * (av_get_bits_per_pixel(desc) >> 3);
            int x;
            for (y = 0; y < avctx->height && buf < buf_end; y++) {
@@ -841,6 +838,7 @@ static int decode_frame(AVCodecContext *avctx,
            } else
                return unsupported(avctx);
        } else if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) { // IFF-DEEP
+            const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
            if (av_get_bits_per_pixel(desc) == 32)
                decode_deep_rle32(s->frame->data[0], buf, buf_size, avctx->width, avctx->height, s->frame->linesize[0]);
            else
@@ -849,15 +847,16 @@ static int decode_frame(AVCodecContext *avctx,
        break;
    case 4:
        bytestream2_init(&gb, buf, buf_size);
-        if (avctx->codec_tag == MKTAG('R', 'G', 'B', '8') && avctx->pix_fmt == AV_PIX_FMT_RGB32)
+        if (avctx->codec_tag == MKTAG('R', 'G', 'B', '8'))
            decode_rgb8(&gb, s->frame->data[0], avctx->width, avctx->height, s->frame->linesize[0]);
-        else if (avctx->codec_tag == MKTAG('R', 'G', 'B', 'N') && avctx->pix_fmt == AV_PIX_FMT_RGB444)
+        else if (avctx->codec_tag == MKTAG('R', 'G', 'B', 'N'))
            decode_rgbn(&gb, s->frame->data[0], avctx->width, avctx->height, s->frame->linesize[0]);
        else
            return unsupported(avctx);
        break;
    case 5:
        if (avctx->codec_tag == MKTAG('D', 'E', 'E', 'P')) {
+            const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
            if (av_get_bits_per_pixel(desc) == 32)
                decode_deep_tvdc32(s->frame->data[0], buf, buf_size, avctx->width, avctx->height, s->frame->linesize[0], s->tvdc);
            else
@@ -94,7 +94,7 @@ typedef struct Indeo3DecodeContext {

    int16_t         width, height;
    uint32_t        frame_num;      ///< current frame number (zero-based)
-    int             data_size;      ///< size of the frame data in bytes
+    uint32_t        data_size;      ///< size of the frame data in bytes
    uint16_t        frame_flags;    ///< frame properties
    uint8_t         cb_offset;      ///< needed for selecting VQ tables
    uint8_t         buf_sel;        ///< active frame buffer: 0 - primary, 1 -secondary
@@ -899,8 +899,7 @@ static int decode_frame_headers(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
    GetByteContext gb;
    const uint8_t   *bs_hdr;
    uint32_t        frame_num, word2, check_sum, data_size;
-    int             y_offset, u_offset, v_offset;
-    uint32_t        starts[3], ends[3];
+    uint32_t        y_offset, u_offset, v_offset, starts[3], ends[3];
    uint16_t        height, width;
    int             i, j;

@@ -982,8 +981,7 @@ static int decode_frame_headers(Indeo3DecodeContext *ctx, AVCodecContext *avctx,
    ctx->y_data_size = ends[0] - starts[0];
    ctx->v_data_size = ends[1] - starts[1];
    ctx->u_data_size = ends[2] - starts[2];
-    if (FFMIN3(y_offset, v_offset, u_offset) < 0 ||
-        FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
+    if (FFMAX3(y_offset, v_offset, u_offset) >= ctx->data_size - 16 ||
        FFMIN3(y_offset, v_offset, u_offset) < gb.buffer - bs_hdr + 16 ||
        FFMIN3(ctx->y_data_size, ctx->v_data_size, ctx->u_data_size) <= 0) {
        av_log(avctx, AV_LOG_ERROR, "One of the y/u/v offsets is invalid\n");
@@ -269,11 +269,6 @@ static inline void ls_decode_line(JLSState *state, MJpegDecodeContext *s,
                x += stride;
            }

-            if (x >= w) {
-                av_log(NULL, AV_LOG_ERROR, "run overflow\n");
-                return;
-            }
-
            /* decode run termination value */
            Rb     = R(last, x);
            RItype = (FFABS(Ra - Rb) <= state->near) ? 1 : 0;
@@ -43,13 +43,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
 {
    JvContext *s = avctx->priv_data;

-    if (!avctx->width || !avctx->height ||
-        (avctx->width & 7) || (avctx->height & 7)) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid video dimensions: %dx%d\n",
-               avctx->width, avctx->height);
-        return AVERROR(EINVAL);
-    }
-
    s->frame = av_frame_alloc();
    if (!s->frame)
        return AVERROR(ENOMEM);
@@ -96,7 +96,8 @@ static int ilbc_decode_frame(AVCodecContext *avctx, void *data,
    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
        return ret;

-    WebRtcIlbcfix_DecodeImpl((int16_t *) frame->data[0], (const uint16_t *) buf, &s->decoder, 1);
+    WebRtcIlbcfix_DecodeImpl((WebRtc_Word16*) frame->data[0],
+                             (const WebRtc_UWord16*) buf, &s->decoder, 1);

    *got_frame_ptr = 1;

@@ -169,7 +170,7 @@ static int ilbc_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
    if ((ret = ff_alloc_packet2(avctx, avpkt, 50)) < 0)
        return ret;

-    WebRtcIlbcfix_EncodeImpl((uint16_t *) avpkt->data, (const int16_t *) frame->data[0], &s->encoder);
+    WebRtcIlbcfix_EncodeImpl((WebRtc_UWord16*) avpkt->data, (const WebRtc_Word16*) frame->data[0], &s->encoder);

    avpkt->size     = s->encoder.no_of_bytes;
    *got_packet_ptr = 1;
@@ -236,10 +236,10 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt, const AVFrame *frame,
            case AV_STEREO3D_CHECKERBOARD:
                fpa_type = 0;
                break;
-            case AV_STEREO3D_COLUMNS:
+            case AV_STEREO3D_LINES:
                fpa_type = 1;
                break;
-            case AV_STEREO3D_LINES:
+            case AV_STEREO3D_COLUMNS:
                fpa_type = 2;
                break;
            case AV_STEREO3D_SIDEBYSIDE:
@@ -244,8 +244,7 @@ int ff_mjpeg_decode_dht(MJpegDecodeContext *s)

 int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
 {
-    int len, nb_components, i, width, height, bits, ret;
-    unsigned pix_fmt_id;
+    int len, nb_components, i, width, height, pix_fmt_id, ret;
    int h_count[MAX_COMPONENTS];
    int v_count[MAX_COMPONENTS];

@@ -255,11 +254,11 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
    /* XXX: verify len field validity */
    len     = get_bits(&s->gb, 16);
    s->avctx->bits_per_raw_sample =
-    bits = get_bits(&s->gb, 8);
+    s->bits = get_bits(&s->gb, 8);

    if (s->pegasus_rct)
-        bits = 9;
-    if (bits == 9 && !s->pegasus_rct)
+        s->bits = 9;
+    if (s->bits == 9 && !s->pegasus_rct)
        s->rct  = 1;    // FIXME ugly

    if(s->lossless && s->avctx->lowres){
@@ -292,7 +291,7 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
            return AVERROR_INVALIDDATA;
        }
    }
-    if (s->ls && !(bits <= 8 || nb_components == 1)) {
+    if (s->ls && !(s->bits <= 8 || nb_components == 1)) {
        avpriv_report_missing_feature(s->avctx,
                                      "JPEG-LS that is not <= 8 "
                                      "bits/component or 16-bit gray");
@@ -338,13 +337,11 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)

    /* if different size, realloc/alloc picture */
    if (   width != s->width || height != s->height
-        || bits != s->bits
        || memcmp(s->h_count, h_count, sizeof(h_count))
        || memcmp(s->v_count, v_count, sizeof(v_count))) {

        s->width      = width;
        s->height     = height;
-        s->bits       = bits;
        memcpy(s->h_count, h_count, sizeof(h_count));
        memcpy(s->v_count, v_count, sizeof(v_count));
        s->interlaced = 0;
@@ -379,7 +376,7 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
        else if (!s->lossless)
            s->rgb = 0;
    /* XXX: not complete test ! */
-    pix_fmt_id = ((unsigned)s->h_count[0] << 28) | (s->v_count[0] << 24) |
+    pix_fmt_id = (s->h_count[0] << 28) | (s->v_count[0] << 24) |
                 (s->h_count[1] << 20) | (s->v_count[1] << 16) |
                 (s->h_count[2] << 12) | (s->v_count[2] <<  8) |
                 (s->h_count[3] <<  4) |  s->v_count[3];
@@ -514,8 +511,6 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
        else              s->avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
        s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
        if (pix_fmt_id == 0x42111100) {
-            if (s->bits > 8)
-                goto unk_pixfmt;
            s->upscale_h = 6;
            s->chroma_height = s->height / 2;
        }
@@ -1596,8 +1591,6 @@ static int mjpeg_decode_app(MJpegDecodeContext *s)
    }

    if (id == AV_RB32("LJIF")) {
-        int rgb = s->rgb;
-        int pegasus_rct = s->pegasus_rct;
        if (s->avctx->debug & FF_DEBUG_PICT_INFO)
            av_log(s->avctx, AV_LOG_INFO,
                   "Pegasus lossless jpeg header found\n");
@@ -1607,27 +1600,17 @@ static int mjpeg_decode_app(MJpegDecodeContext *s)
        skip_bits(&s->gb, 16); /* unknown always 0? */
        switch (i=get_bits(&s->gb, 8)) {
        case 1:
-            rgb         = 1;
-            pegasus_rct = 0;
+            s->rgb         = 1;
+            s->pegasus_rct = 0;
            break;
        case 2:
-            rgb         = 1;
-            pegasus_rct = 1;
+            s->rgb         = 1;
+            s->pegasus_rct = 1;
            break;
        default:
            av_log(s->avctx, AV_LOG_ERROR, "unknown colorspace %d\n", i);
        }
-
        len -= 9;
-        if (s->got_picture)
-            if (rgb != s->rgb || pegasus_rct != s->pegasus_rct) {
-                av_log(s->avctx, AV_LOG_WARNING, "Mismatching LJIF tag\n");
-                goto out;
-            }
-
-        s->rgb = rgb;
-        s->pegasus_rct = pegasus_rct;
-
        goto out;
    }
    if (id == AV_RL32("colr") && len > 0) {
@@ -1911,7 +1894,6 @@ int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
    int start_code;
    int i, index;
    int ret = 0;
-    int is16bit;

    av_dict_free(&s->exif_metadata);
    av_freep(&s->stereo3d);
@@ -2090,9 +2072,6 @@ fail:
    s->got_picture = 0;
    return ret;
 the_end:
-
-    is16bit = av_pix_fmt_desc_get(s->avctx->pix_fmt)->comp[0].step_minus1;
-
    if (s->upscale_h) {
        int p;
        av_assert0(avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
@@ -2102,7 +2081,6 @@ the_end:
                   avctx->pix_fmt == AV_PIX_FMT_YUVA444P ||
                   avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
                   avctx->pix_fmt == AV_PIX_FMT_YUV420P  ||
-                   avctx->pix_fmt == AV_PIX_FMT_YUV420P16||
                   avctx->pix_fmt == AV_PIX_FMT_GBRAP
                  );
        avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift);
@@ -2113,16 +2091,9 @@ the_end:
                continue;
            if (p==1 || p==2)
                w >>= hshift;
-            av_assert0(w > 0);
            for (i = 0; i < s->chroma_height; i++) {
-                if (is16bit) ((uint16_t*)line)[w - 1] = ((uint16_t*)line)[(w - 1) / 2];
-                else                      line[w - 1] = line[(w - 1) / 2];
-                for (index = w - 2; index > 0; index--) {
-                    if (is16bit)
-                        ((uint16_t*)line)[index] = (((uint16_t*)line)[index / 2] + ((uint16_t*)line)[(index + 1) / 2]) >> 1;
-                    else
-                        line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1;
-                }
+                for (index = w - 1; index; index--)
+                    line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1;
                line += s->linesize[p];
            }
        }
@@ -2143,11 +2114,11 @@ the_end:
            if (!(s->upscale_v & (1<<p)))
                continue;
            if (p==1 || p==2)
-                w = FF_CEIL_RSHIFT(w, hshift);
+                w >>= hshift;
            for (i = s->height - 1; i; i--) {
                uint8_t *src1 = &((uint8_t *)s->picture_ptr->data[p])[i / 2 * s->linesize[p]];
                uint8_t *src2 = &((uint8_t *)s->picture_ptr->data[p])[(i + 1) / 2 * s->linesize[p]];
-                if (src1 == src2 || i == s->height - 1) {
+                if (src1 == src2) {
                    memcpy(dst, src1, w);
                } else {
                    for (index = 0; index < w; index++)
@@ -61,13 +61,6 @@ static av_cold int mm_decode_init(AVCodecContext *avctx)

    avctx->pix_fmt = AV_PIX_FMT_PAL8;

-    if (!avctx->width || !avctx->height ||
-        (avctx->width & 1) || (avctx->height & 1)) {
-        av_log(avctx, AV_LOG_ERROR, "Invalid video dimensions: %dx%d\n",
-               avctx->width, avctx->height);
-        return AVERROR(EINVAL);
-    }
-
    s->frame = av_frame_alloc();
    if (!s->frame)
        return AVERROR(ENOMEM);
@@ -118,7 +111,7 @@ static int mm_decode_intra(MmContext * s, int half_horiz, int half_vert)

        if (color) {
            memset(s->frame->data[0] + y*s->frame->linesize[0] + x, color, run_length);
-            if (half_vert && y + half_vert < s->avctx->height)
+            if (half_vert)
                memset(s->frame->data[0] + (y+1)*s->frame->linesize[0] + x, color, run_length);
        }
        x+= run_length;
@@ -190,13 +190,7 @@ static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int
        int uvdxy;              /* no, it might not be used uninitialized */
        if(dxy){
            if(qpel){
-                if (h << size == 16) {
-                    c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
-                } else if (size == 0 && h == 8) {
-                    c->qpel_put[1][dxy](c->temp    , ref[0] + x + y*stride    , stride);
-                    c->qpel_put[1][dxy](c->temp + 8, ref[0] + x + y*stride + 8, stride);
-                } else
-                    av_assert2(0);
+                c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
                if(chroma){
                    int cx= hx/2;
                    int cy= hy/2;
@@ -1884,14 +1884,6 @@ static int mpeg_decode_slice(MpegEncContext *s, int mb_y,
                } else
                    goto eos;
            }
-            if (s->mb_y >= ((s->height + 15) >> 4) &&
-                s->progressive_frame &&
-                !s->progressive_sequence &&
-                get_bits_left(&s->gb) <= 8 &&
-                get_bits_left(&s->gb) >= 0 &&
-                s->mb_skip_run == -1 &&
-                show_bits(&s->gb, 8) == 0)
-                goto eos;

            ff_init_block_index(s);
        }
@@ -73,21 +73,20 @@ static int mpegaudio_parse(AVCodecParserContext *s1,
                    if (i > 4)
                        s->header_count = -2;
                } else {
-                    int header_threshold = avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec_id;
                    if((state&SAME_HEADER_MASK) != (s->header&SAME_HEADER_MASK) && s->header)
                        s->header_count= -3;
                    s->header= state;
                    s->header_count++;
                    s->frame_size = ret-4;

-                    if (s->header_count > header_threshold) {
+                    if (s->header_count > 0 + (avctx->codec_id != AV_CODEC_ID_NONE && avctx->codec_id != codec_id)) {
                        avctx->sample_rate= sr;
                        avctx->channels   = channels;
                        s1->duration      = frame_size;
                        avctx->codec_id   = codec_id;
                        if (s->no_bitrate || !avctx->bit_rate) {
                            s->no_bitrate = 1;
-                            avctx->bit_rate += (bit_rate - avctx->bit_rate) / (s->header_count - header_threshold);
+                            avctx->bit_rate += (bit_rate - avctx->bit_rate) / s->header_count;
                        }
                    }
                    break;
@@ -1642,11 +1642,9 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame_ptr,
    uint32_t header;
    int ret;

-    int skipped = 0;
    while(buf_size && !*buf){
        buf++;
        buf_size--;
-        skipped++;
    }

    if (buf_size < HEADER_SIZE)
@@ -1701,7 +1699,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame_ptr,
            return ret;
    }
    s->frame_size = 0;
-    return buf_size + skipped;
+    return buf_size;
 }

 static void mp_flush(MPADecodeContext *ctx)
@@ -1436,9 +1436,6 @@ int ff_MPV_common_frame_size_change(MpegEncContext *s)
 {
    int i, err = 0;

-    if (!s->context_initialized)
-        return AVERROR(EINVAL);
-
    if (s->slice_context_count > 1) {
        for (i = 0; i < s->slice_context_count; i++) {
            free_duplicate_context(s->thread_context[i]);
@@ -1468,8 +1465,8 @@ int ff_MPV_common_frame_size_change(MpegEncContext *s)
        s->mb_height = (s->height + 15) / 16;

    if ((s->width || s->height) &&
-        (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
-        goto fail;
+        av_image_check_size(s->width, s->height, 0, s->avctx))
+        return AVERROR_INVALIDDATA;

    if ((err = init_context_frame(s)))
        goto fail;
@@ -1485,7 +1482,7 @@ int ff_MPV_common_frame_size_change(MpegEncContext *s)
            }

            for (i = 0; i < nb_slices; i++) {
-                if ((err = init_duplicate_context(s->thread_context[i])) < 0)
+                if (init_duplicate_context(s->thread_context[i]) < 0)
                    goto fail;
                    s->thread_context[i]->start_mb_y =
                        (s->mb_height * (i) + nb_slices / 2) / nb_slices;
@@ -908,11 +908,6 @@ static av_cold int on2avc_decode_init(AVCodecContext *avctx)
    On2AVCContext *c = avctx->priv_data;
    int i;

-    if (avctx->channels > 2U) {
-        avpriv_request_sample(avctx, "Decoding more than 2 channels");
-        return AVERROR_PATCHWELCOME;
-    }
-
    c->avctx = avctx;
    avctx->sample_fmt     = AV_SAMPLE_FMT_FLTP;
    avctx->channel_layout = (avctx->channels == 2) ? AV_CH_LAYOUT_STEREO
@@ -102,8 +102,8 @@ static const AVOption avcodec_options[] = {
 {"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},
-{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, A|D|E},
+{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
+{"ac", "set number of audio channels", OFFSET(channels), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
 {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
 {"frame_size", NULL, OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, A|E},
 {"frame_number", NULL, OFFSET(frame_number), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
@@ -499,12 +499,6 @@ static int opus_decode_packet(AVCodecContext *avctx, void *data,
                av_log(avctx, AV_LOG_ERROR, "Error parsing the packet header.\n");
                return ret;
            }
-            if (coded_samples != s->packet.frame_count * s->packet.frame_duration) {
-                av_log(avctx, AV_LOG_ERROR,
-                       "Mismatching coded sample count in substream %d.\n", i);
-                return AVERROR_INVALIDDATA;
-            }
-
            s->silk_samplerate = get_silk_samplerate(s->packet.config);
        }

@@ -576,12 +576,6 @@ static int decode_frame(AVCodecContext *avctx,
        case MKTAG('I', 'H', 'D', 'R'):
            if (length != 13)
                goto fail;
-
-            if (s->state & PNG_IDAT) {
-                av_log(avctx, AV_LOG_ERROR, "IHDR after IDAT\n");
-                goto fail;
-            }
-
            s->width  = bytestream2_get_be32(&s->gb);
            s->height = bytestream2_get_be32(&s->gb);
            if (av_image_check_size(s->width, s->height, 0, avctx)) {
@@ -650,7 +644,7 @@ static int decode_frame(AVCodecContext *avctx,
                } else if ((s->bits_per_pixel == 1 || s->bits_per_pixel == 2 || s->bits_per_pixel == 4 || s->bits_per_pixel == 8) &&
                           s->color_type == PNG_COLOR_TYPE_PALETTE) {
                    avctx->pix_fmt = AV_PIX_FMT_PAL8;
-                } else if (s->bit_depth == 1 && s->bits_per_pixel == 1) {
+                } else if (s->bit_depth == 1) {
                    avctx->pix_fmt = AV_PIX_FMT_MONOBLACK;
                } else if (s->bit_depth == 8 &&
                           s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
@@ -857,11 +851,10 @@ exit_loop:
            int i, j;
            uint8_t *pd      = p->data[0];
            uint8_t *pd_last = s->last_picture.f->data[0];
-            int ls = FFMIN(av_image_get_linesize(p->format, s->width, 0), s->width * s->bpp);

            ff_thread_await_progress(&s->last_picture, INT_MAX, 0);
            for (j = 0; j < s->height; j++) {
-                for (i = 0; i < ls; i++)
+                for (i = 0; i < s->width * s->bpp; i++)
                    pd[i] += pd_last[i];
                pd      += s->image_linesize;
                pd_last += s->image_linesize;
@@ -471,6 +471,7 @@ static void put_alpha_run(PutBitContext *pb, int run)

 // todo alpha quantisation for high quants
 static int encode_alpha_plane(ProresContext *ctx, PutBitContext *pb,
+                              const uint16_t *src, int linesize,
                              int mbs_per_slice, uint16_t *blocks,
                              int quant)
 {
@@ -565,16 +566,11 @@ static int encode_slice(AVCodecContext *avctx, const AVFrame *pic,
            get_alpha_data(ctx, src, linesize, xp, yp,
                           pwidth, avctx->height / ctx->pictures_per_frame,
                           ctx->blocks[0], mbs_per_slice, ctx->alpha_bits);
-            sizes[i] = encode_alpha_plane(ctx, pb,
+            sizes[i] = encode_alpha_plane(ctx, pb, src, linesize,
                                          mbs_per_slice, ctx->blocks[0],
                                          quant);
        }
        total_size += sizes[i];
-        if (put_bits_left(pb) < 0) {
-            av_log(avctx, AV_LOG_ERROR, "Serious underevaluation of"
-                   "required buffer size");
-            return AVERROR_BUFFER_TOO_SMALL;
-        }
    }
    return total_size;
 }
@@ -945,9 +941,9 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
    avctx->coded_frame->key_frame = 1;

-    pkt_size = ctx->frame_size_upper_bound;
+    pkt_size = ctx->frame_size_upper_bound + FF_MIN_BUFFER_SIZE;

-    if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size + FF_MIN_BUFFER_SIZE)) < 0)
+    if ((ret = ff_alloc_packet2(avctx, pkt, pkt_size)) < 0)
        return ret;

    orig_buf = pkt->data;
@@ -1024,9 +1020,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                slice_hdr = buf;
                buf += slice_hdr_size - 1;
                init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)) * 8);
-                ret = encode_slice(avctx, pic, &pb, sizes, x, y, q, mbs_per_slice);
-                if (ret < 0)
-                    return ret;
+                encode_slice(avctx, pic, &pb, sizes, x, y, q, mbs_per_slice);

                bytestream_put_byte(&slice_hdr, q);
                slice_size = slice_hdr_size + sizes[ctx->num_planes - 1];
@@ -1208,6 +1202,8 @@ static av_cold int encode_init(AVCodecContext *avctx)
        ctx->bits_per_mb = ls * 8;
        if (ctx->chroma_factor == CFACTOR_Y444)
            ctx->bits_per_mb += ls * 4;
+        if (ctx->num_planes == 4)
+            ctx->bits_per_mb += ls * 4;
    }

    ctx->frame_size_upper_bound = ctx->pictures_per_frame *
@@ -1216,14 +1212,6 @@ static av_cold int encode_init(AVCodecContext *avctx)
                                   (mps * ctx->bits_per_mb) / 8)
                                  + 200;

-    if (ctx->alpha_bits) {
-         // alpha plane is run-coded and might run over bit budget
-         ctx->frame_size_upper_bound += ctx->pictures_per_frame *
-                                        ctx->slices_per_picture *
-         /* num pixels per slice */     (ctx->mbs_per_slice * 256 *
-         /* bits per pixel */            (1 + ctx->alpha_bits + 1) + 7 >> 3);
-    }
-
    avctx->codec_tag   = ctx->profile_info->tag;

    av_log(avctx, AV_LOG_DEBUG,
@@ -163,7 +163,7 @@ static void av_noinline qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,

                    /* check motion vector */
                    if ((me_x + filled < 0) || (me_x + me_w + filled > width) ||
-                       (height - me_y - me_h < 0) || (height - me_y >= orig_height) ||
+                       (height - me_y - me_h < 0) || (height - me_y > orig_height) ||
                       (filled + me_w > width) || (height - me_h < 0))
                        av_log(NULL, AV_LOG_ERROR, "Bogus motion vector (%i,%i), block size %ix%i at %i,%i\n",
                               me_x, me_y, me_w, me_h, filled, height);
@@ -117,9 +117,6 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
        context->frame_size = avpicture_get_size(avctx->pix_fmt, avctx->width,
                                                 avctx->height);
    }
-    if (context->frame_size < 0)
-        return context->frame_size;
-

    if ((avctx->extradata_size >= 9 &&
         !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
@@ -98,7 +98,7 @@ static int expand_rle_row16(SgiState *s, uint16_t *out_buf,
            break;

        /* Check for buffer overflow. */
-        if (out_end - out_buf <= pixelstride * (count - 1)) {
+        if (pixelstride * (count - 1) >= len) {
            av_log(s->avctx, AV_LOG_ERROR, "Invalid pixel count.\n");
            return AVERROR_INVALIDDATA;
        }
@@ -145,7 +145,7 @@ static int read_rle_sgi(uint8_t *out_buf, SgiState *s)
    for (z = 0; z < s->depth; z++) {
        dest_row = out_buf;
        for (y = 0; y < s->height; y++) {
-            linesize = s->width * s->depth;
+            linesize = s->width * s->depth * s->bytes_per_channel;
            dest_row -= s->linesize;
            start_offset = bytestream2_get_be32(&g_table);
            bytestream2_seek(&s->g, start_offset, SEEK_SET);
@@ -70,7 +70,7 @@ typedef struct SmcContext {
        row_ptr += stride * 4; \
    } \
    total_blocks--; \
-    if (total_blocks < 0 + !!n_blocks) \
+    if (total_blocks < 0) \
    { \
        av_log(s->avctx, AV_LOG_INFO, "warning: block counter just went negative (this should not happen)\n"); \
        return; \
@@ -713,7 +713,7 @@ av_cold void ff_snow_common_end(SnowContext *s)
    for(i=0; i<MAX_REF_FRAMES; i++){
        av_freep(&s->ref_mvs[i]);
        av_freep(&s->ref_scores[i]);
-        if(s->last_picture[i] && s->last_picture[i]->data[0]) {
+        if(s->last_picture[i]->data[0]) {
            av_assert0(s->last_picture[i]->data[0] != s->current_picture->data[0]);
        }
        av_frame_free(&s->last_picture[i]);
@@ -659,10 +659,7 @@ static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, i
                if(v){
                    v= 2*(get_symbol2(&s->c, b->state[context + 2], context-4) + 1);
                    v+=get_rac(&s->c, &b->state[0][16 + 1 + 3 + ff_quant3bA[l&0xFF] + 3*ff_quant3bA[t&0xFF]]);
-                    if ((uint16_t)v != v) {
-                        av_log(s->avctx, AV_LOG_ERROR, "Coefficient damaged\n");
-                        v = 1;
-                    }
+
                    xc->x=x;
                    (xc++)->coeff= v;
                }
@@ -672,10 +669,6 @@ static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, i
                    else           run= INT_MAX;
                    v= 2*(get_symbol2(&s->c, b->state[0 + 2], 0-4) + 1);
                    v+=get_rac(&s->c, &b->state[0][16 + 1 + 3]);
-                    if ((uint16_t)v != v) {
-                        av_log(s->avctx, AV_LOG_ERROR, "Coefficient damaged\n");
-                        v = 1;
-                    }

                    xc->x=x;
                    (xc++)->coeff= v;
@@ -495,7 +495,7 @@ static int svq1_decode_delta_block(AVCodecContext *avctx, HpelDSPContext *hdsp,
    return result;
 }

-static void svq1_parse_string(GetBitContext *bitbuf, uint8_t out[257])
+static void svq1_parse_string(GetBitContext *bitbuf, uint8_t *out)
 {
    uint8_t seed;
    int i;
@@ -507,7 +507,6 @@ static void svq1_parse_string(GetBitContext *bitbuf, uint8_t out[257])
        out[i] = get_bits(bitbuf, 8) ^ seed;
        seed   = string_table[out[i] ^ seed];
    }
-    out[i] = 0;
 }

 static int svq1_decode_frame_header(AVCodecContext *avctx, AVFrame *frame)
@@ -550,12 +549,12 @@ static int svq1_decode_frame_header(AVCodecContext *avctx, AVFrame *frame)
        }

        if ((s->frame_code ^ 0x10) >= 0x50) {
-            uint8_t msg[257];
+            uint8_t msg[256];

            svq1_parse_string(bitbuf, msg);

            av_log(avctx, AV_LOG_INFO,
-                   "embedded message:\n%s\n", ((char *)msg) + 1);
+                   "embedded message:\n%s\n", (char *)msg);
        }

        skip_bits(bitbuf, 2);
@@ -1176,7 +1176,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,

    h->cur_pic_ptr = s->cur_pic;
    av_frame_unref(&h->cur_pic.f);
-    memcpy(&h->cur_pic.tf, &s->cur_pic->tf, sizeof(h->cur_pic) - offsetof(H264Picture, tf));
+    h->cur_pic     = *s->cur_pic;
    ret = av_frame_ref(&h->cur_pic.f, &s->cur_pic->f);
    if (ret < 0)
        return ret;
@@ -712,13 +712,13 @@ static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
        s->height = value;
        break;
    case TIFF_BPP:
-        if (count > 4U) {
+        s->bppcount = count;
+        if (count > 4) {
            av_log(s->avctx, AV_LOG_ERROR,
                   "This format is not supported (bpp=%d, %d components)\n",
-                   value, count);
+                   s->bpp, count);
            return AVERROR_INVALIDDATA;
        }
-        s->bppcount = count;
        if (count == 1)
            s->bpp = value;
        else {
@@ -736,13 +736,6 @@ 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) {
@@ -305,9 +305,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,

    strips = (s->height - 1) / s->rps + 1;

-    bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
-                     s->subsampling[0] * s->subsampling[1] + 7) >> 3;
-    packet_size = avctx->height * bytes_per_row * 2 +
+    packet_size = avctx->height * ((avctx->width * s->bpp + 7) >> 3) * 2 +
                  avctx->height * 4 + FF_MIN_BUFFER_SIZE;

    if ((ret = ff_alloc_packet2(avctx, pkt, packet_size)) < 0)
@@ -335,6 +333,8 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
        goto fail;
    }

+    bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
+                     s->subsampling[0] * s->subsampling[1] + 7) >> 3;
    if (is_yuv) {
        av_fast_padded_malloc(&s->yuv_line, &s->yuv_line_size, bytes_per_row);
        if (s->yuv_line == NULL) {
@@ -66,9 +66,6 @@
 #include "compat/os2threads.h"
 #endif

-#include "libavutil/ffversion.h"
-const char av_codec_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
-
 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
 static int default_lockmgr_cb(void **arg, enum AVLockOp op)
 {
@@ -300,12 +297,6 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
    int i;
    int w_align = 1;
    int h_align = 1;
-    AVPixFmtDescriptor const *desc = av_pix_fmt_desc_get(s->pix_fmt);
-
-    if (desc) {
-        w_align = 1 << desc->log2_chroma_w;
-        h_align = 1 << desc->log2_chroma_h;
-    }

    switch (s->pix_fmt) {
    case AV_PIX_FMT_YUV420P:
@@ -383,8 +374,6 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
    case AV_PIX_FMT_GBRP12BE:
    case AV_PIX_FMT_GBRP14LE:
    case AV_PIX_FMT_GBRP14BE:
-    case AV_PIX_FMT_GBRP16LE:
-    case AV_PIX_FMT_GBRP16BE:
        w_align = 16; //FIXME assume 16 pixel per macroblock
        h_align = 16 * 2; // interlaced needs 2 macroblocks height
        break;
@@ -414,10 +403,6 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
            w_align = 4;
            h_align = 4;
        }
-        if (s->codec_id == AV_CODEC_ID_JV) {
-            w_align = 8;
-            h_align = 8;
-        }
        break;
    case AV_PIX_FMT_BGR24:
        if ((s->codec_id == AV_CODEC_ID_MSZH) ||
@@ -433,6 +418,8 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
        }
        break;
    default:
+        w_align = 1;
+        h_align = 1;
        break;
    }

@@ -3604,11 +3591,6 @@ int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf)
    ret = av_bprint_finalize(buf, &str);
    if (ret < 0)
        return ret;
-    if (!av_bprint_is_complete(buf)) {
-        av_free(str);
-        return AVERROR(ENOMEM);
-    }
-
    avctx->extradata = str;
    /* Note: the string is NUL terminated (so extradata can be read as a
     * string), but the ending character is not accounted in the size (in
@@ -214,8 +214,6 @@ static void restore_median(uint8_t *src, int step, int stride,
        slice_height = ((((slice + 1) * height) / slices) & cmask) -
                       slice_start;

-        if (!slice_height)
-            continue;
        bsrc = src + slice_start * stride;

        // first line - left neighbour prediction
@@ -226,7 +224,7 @@ static void restore_median(uint8_t *src, int step, int stride,
            A        = bsrc[i];
        }
        bsrc += stride;
-        if (slice_height <= 1)
+        if (slice_height == 1)
            continue;
        // second line - first element has top prediction, the rest uses median
        C        = bsrc[-stride];
@@ -271,8 +269,6 @@ static void restore_median_il(uint8_t *src, int step, int stride,
        slice_height   = ((((slice + 1) * height) / slices) & cmask) -
                         slice_start;
        slice_height >>= 1;
-        if (!slice_height)
-            continue;

        bsrc = src + slice_start * stride;

@@ -288,7 +284,7 @@ static void restore_median_il(uint8_t *src, int step, int stride,
            A                 = bsrc[stride + i];
        }
        bsrc += stride2;
-        if (slice_height <= 1)
+        if (slice_height == 1)
            continue;
        // second line - first element has top prediction, the rest uses median
        C        = bsrc[-stride2];
@@ -389,7 +389,7 @@ static int write_huff_codes(uint8_t *src, uint8_t *dst, int dst_size,
 }

 static int encode_plane(AVCodecContext *avctx, uint8_t *src,
-                        uint8_t *dst, int stride, int plane_no,
+                        uint8_t *dst, int stride,
                        int width, int height, PutByteContext *pb)
 {
    UtvideoContext *c        = avctx->priv_data;
@@ -399,7 +399,6 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
    HuffEntry he[256];

    uint32_t offset = 0, slice_len = 0;
-    const int cmask = ~(!plane_no && avctx->pix_fmt == AV_PIX_FMT_YUV420P);
    int      i, sstart, send = 0;
    int      symbol;
    int      ret;
@@ -409,7 +408,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
    case PRED_NONE:
        for (i = 0; i < c->slices; i++) {
            sstart = send;
-            send   = height * (i + 1) / c->slices & cmask;
+            send   = height * (i + 1) / c->slices;
            av_image_copy_plane(dst + sstart * width, width,
                                src + sstart * stride, stride,
                                width, send - sstart);
@@ -418,7 +417,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
    case PRED_LEFT:
        for (i = 0; i < c->slices; i++) {
            sstart = send;
-            send   = height * (i + 1) / c->slices & cmask;
+            send   = height * (i + 1) / c->slices;
            left_predict(src + sstart * stride, dst + sstart * width,
                         stride, width, send - sstart);
        }
@@ -426,7 +425,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
    case PRED_MEDIAN:
        for (i = 0; i < c->slices; i++) {
            sstart = send;
-            send   = height * (i + 1) / c->slices & cmask;
+            send   = height * (i + 1) / c->slices;
            median_predict(c, src + sstart * stride, dst + sstart * width,
                           stride, width, send - sstart);
        }
@@ -490,7 +489,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
    send = 0;
    for (i = 0; i < c->slices; i++) {
        sstart  = send;
-        send    = height * (i + 1) / c->slices & cmask;
+        send    = height * (i + 1) / c->slices;

        /*
         * Write the huffman codes to a buffer,
@@ -572,7 +571,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    case AV_PIX_FMT_RGBA:
        for (i = 0; i < c->planes; i++) {
            ret = encode_plane(avctx, c->slice_buffer[i] + 2 * c->slice_stride,
-                               c->slice_buffer[i], c->slice_stride, i,
+                               c->slice_buffer[i], c->slice_stride,
                               width, height, &pb);

            if (ret) {
@@ -584,7 +583,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    case AV_PIX_FMT_YUV422P:
        for (i = 0; i < c->planes; i++) {
            ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
-                               pic->linesize[i], i, width >> !!i, height, &pb);
+                               pic->linesize[i], width >> !!i, height, &pb);

            if (ret) {
                av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
@@ -595,7 +594,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
    case AV_PIX_FMT_YUV420P:
        for (i = 0; i < c->planes; i++) {
            ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
-                               pic->linesize[i], i, width >> !!i, height >> !!i,
+                               pic->linesize[i], width >> !!i, height >> !!i,
                               &pb);

            if (ret) {
@@ -5484,7 +5484,7 @@ static int vc1_decode_sprites(VC1Context *v, GetBitContext* gb)
    if (ret < 0)
        return ret;

-    if (!s->current_picture.f || !s->current_picture.f->data[0]) {
+    if (!s->current_picture.f->data[0]) {
        av_log(avctx, AV_LOG_ERROR, "Got no sprites\n");
        return -1;
    }
@@ -5514,7 +5514,7 @@ static void vc1_sprite_flush(AVCodecContext *avctx)
       Since we can't enforce it, clear to black the missing sprite. This is
       wrong but it looks better than doing nothing. */

-    if (f && f->data[0])
+    if (f->data[0])
        for (plane = 0; plane < (s->flags&CODEC_FLAG_GRAY ? 1 : 3); plane++)
            for (i = 0; i < v->sprite_height>>!!plane; i++)
                memset(f->data[plane] + i * f->linesize[plane],
@@ -339,9 +339,6 @@ static int vmd_decode(VmdVideoContext *s, AVFrame *frame)
                        ofs += slen;
                        bytestream2_skip(&gb, len);
                    } else {
-                        if (ofs + len > frame_width ||
-                            bytestream2_get_bytes_left(&gb) < len)
-                            return AVERROR_INVALIDDATA;
                        bytestream2_get_buffer(&gb, &dp[ofs], len);
                        ofs += len;
                    }
@@ -1314,9 +1314,7 @@ static av_always_inline int setup_classifs(vorbis_context *vc,
                                           vorbis_residue *vr,
                                           uint8_t *do_not_decode,
                                           unsigned ch_used,
-                                           int partition_count,
-                                           int ptns_to_read
-                                          )
+                                           int partition_count)
 {
    int p, j, i;
    unsigned c_p_c         = vc->codebooks[vr->classbook].dimensions;
@@ -1338,7 +1336,7 @@ static av_always_inline int setup_classifs(vorbis_context *vc,
                for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
                    temp2 = (((uint64_t)temp) * inverse_class) >> 32;

-                    if (i < ptns_to_read)
+                    if (i < vr->ptns_to_read)
                        vr->classifs[p + i] = temp - temp2 * vr->classifications;
                    temp = temp2;
                }
@@ -1346,13 +1344,13 @@ static av_always_inline int setup_classifs(vorbis_context *vc,
                for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
                    temp2 = temp / vr->classifications;

-                    if (i < ptns_to_read)
+                    if (i < vr->ptns_to_read)
                        vr->classifs[p + i] = temp - temp2 * vr->classifications;
                    temp = temp2;
                }
            }
        }
-        p += ptns_to_read;
+        p += vr->ptns_to_read;
    }
    return 0;
 }
@@ -1406,7 +1404,7 @@ static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc,
        for (partition_count = 0; partition_count < ptns_to_read;) {  // SPEC        error
            if (!pass) {
                int ret;
-                if ((ret = setup_classifs(vc, vr, do_not_decode, ch_used, partition_count, ptns_to_read)) < 0)
+                if ((ret = setup_classifs(vc, vr, do_not_decode, ch_used, partition_count)) < 0)
                    return ret;
            }
            for (i = 0; (i < c_p_c) && (partition_count < ptns_to_read); ++i) {
@@ -253,10 +253,6 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb,
    return sign ? ~ret : ret;

 error:
-    ret = get_bits_left(gb);
-    if (ret <= 0) {
-        av_log(ctx->avctx, AV_LOG_ERROR, "Too few bits (%d) left\n", ret);
-    }
    *last = 1;
    return 0;
 }
@@ -638,7 +638,7 @@ static uint32_t log2sample(uint32_t v, int limit, uint32_t *result)

    if ((v += v >> 9) < (1 << 8)) {
        dbits = nbits_table[v];
-        *result += (dbits << 8) + wp_log2_table[(v << (9 - dbits)) & 0xff];
+        result += (dbits << 8) + wp_log2_table[(v << (9 - dbits)) & 0xff];
    } else {
        if (v < (1L << 16))
            dbits = nbits_table[v >> 8] + 8;
@@ -647,7 +647,7 @@ static uint32_t log2sample(uint32_t v, int limit, uint32_t *result)
        else
            dbits = nbits_table[v >> 24] + 24;

-        *result += dbits = (dbits << 8) + wp_log2_table[(v >> (dbits - 9)) & 0xff];
+        result += dbits = (dbits << 8) + wp_log2_table[(v >> (dbits - 9)) & 0xff];

        if (limit && dbits >= limit)
            return 1;
@@ -2876,11 +2876,10 @@ static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
            return AVERROR(ENOMEM);
    }

-    buf_size = s->block_samples * avctx->channels * 8
-             + 200 /* for headers */;
-    if ((ret = ff_alloc_packet2(avctx, avpkt, buf_size)) < 0)
+    if ((ret = ff_alloc_packet2(avctx, avpkt, s->block_samples * avctx->channels * 8)) < 0)
        return ret;
    buf = avpkt->data;
+    buf_size = avpkt->size;

    for (s->ch_offset = 0; s->ch_offset < avctx->channels;) {
        set_samplerate(s);
@@ -1028,7 +1028,7 @@ static int apply_color_indexing_transform(WebPContext *s)
    ImageContext *img;
    ImageContext *pal;
    int i, x, y;
-    uint8_t *p;
+    uint8_t *p, *pi;

    img = &s->image[IMAGE_ROLE_ARGB];
    pal = &s->image[IMAGE_ROLE_COLOR_INDEXING];
@@ -1066,11 +1066,11 @@ static int apply_color_indexing_transform(WebPContext *s)
            p = GET_PIXEL(img->frame, x, y);
            i = p[2];
            if (i >= pal->frame->width) {
-                AV_WB32(p, 0x00000000);
-            } else {
-                const uint8_t *pi = GET_PIXEL(pal->frame, i, 0);
-                AV_COPY32(p, pi);
+                av_log(s->avctx, AV_LOG_ERROR, "invalid palette index %d\n", i);
+                return AVERROR_INVALIDDATA;
            }
+            pi = GET_PIXEL(pal->frame, i, 0);
+            AV_COPY32(p, pi);
        }
    }

@@ -422,9 +422,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
            offset &= ~3;
            if (offset > s->sfb_offsets[i][band - 1])
                s->sfb_offsets[i][band++] = offset;
-
-            if (offset >= subframe_len)
-                break;
        }
        s->sfb_offsets[i][band - 1] = subframe_len;
        s->num_sfb[i]               = band - 1;
@@ -135,11 +135,8 @@ WEIGHT_FUNC_HALF_MM 8, 8
    add  off_regd, 1
    or   off_regd, 1
    add        r4, 1
-    cmp        r6d, 128
-     je .nonnormal
    cmp        r5, 128
     jne .normal
-.nonnormal
    sar        r5, 1
    sar        r6, 1
    sar  off_regd, 1
@@ -342,7 +342,7 @@ QPEL_TABLE 10, 4, w, sse4

 %macro LOOP_END 4
    lea              %1q, [%1q+2*%2q]            ; dst += dststride
-    add              %3q, %4q                    ; src += srcstride
+    lea              %3q, [%3q+  %4q]            ; src += srcstride
    dec          heightd                         ; cmp height
    jnz               .loop                      ; height loop
 %endmacro
@@ -185,12 +185,8 @@ hvar_fn
 %elif (%2-%%off) == 2
    mov            valw, [srcq+%2-2]
 %elifidn %1, body
-    mov            valb, [srcq+%2-1]
-    sal            vald, 16
-    mov            valw, [srcq+%2-3]
-%elifidn %1, bottom
-    movd mm %+ %%mmx_idx, [srcq+%2-4]
-%else ; top
+    mov            vald, [srcq+%2-3]
+%else
    movd mm %+ %%mmx_idx, [srcq+%2-3]
 %endif
 %endif ; (%2-%%off) >= 1
@@ -246,15 +242,12 @@ hvar_fn
    mov     [dstq+%2-2], valw
 %elifidn %1, body
    mov     [dstq+%2-3], valw
-    sar            vald, 16
+    shr            vald, 16
    mov     [dstq+%2-1], valb
 %else
    movd           vald, mm %+ %%mmx_idx
-%ifidn %1, bottom
-    sar            vald, 8
-%endif
    mov     [dstq+%2-3], valw
-    sar            vald, 16
+    shr            vald, 16
    mov     [dstq+%2-1], valb
 %endif
 %endif ; (%2-%%off) >= 1
@@ -20,10 +20,10 @@
 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 ;******************************************************************************

-%include "libavutil/x86/x86util.asm"
-
 %if ARCH_X86_64

+%include "libavutil/x86/x86util.asm"
+
 SECTION_RODATA

 cextern pb_3
@@ -34,7 +34,7 @@ OBJS-$(CONFIG_OPENGL_OUTDEV)             += opengl_enc.o
 OBJS-$(CONFIG_OSS_INDEV)                 += oss_audio.o
 OBJS-$(CONFIG_OSS_OUTDEV)                += oss_audio.o
 OBJS-$(CONFIG_PULSE_INDEV)               += pulse_audio_dec.o \
-                                            pulse_audio_common.o timefilter.o
+                                            pulse_audio_common.o
 OBJS-$(CONFIG_PULSE_OUTDEV)              += pulse_audio_enc.o \
                                            pulse_audio_common.o
 OBJS-$(CONFIG_QTKIT_INDEV)               += qtkit.o
@@ -23,9 +23,6 @@
 #include "avdevice.h"
 #include "config.h"

-#include "libavutil/ffversion.h"
-const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
-
 #define E AV_OPT_FLAG_ENCODING_PARAM
 #define D AV_OPT_FLAG_DECODING_PARAM
 #define A AV_OPT_FLAG_AUDIO_PARAM
@@ -1,4 +1,4 @@
 LIBAVDEVICE_$MAJOR {
-        global: avdevice_*; av_*;
+        global: avdevice_*;
        local: *;
 };
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .3.6
 .2.git