Michael Fabian 'Xaymar' Dirks
220 lines
6.0 KiB
C++
220 lines
6.0 KiB
C++
// FFMPEG Video Encoder Integration for OBS Studio
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// Copyright (c) 2019 Michael Fabian Dirks <info@xaymar.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include "tools.hpp"
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#include <sstream>
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#include <stdexcept>
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extern "C" {
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#pragma warning(push)
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#pragma warning(disable : 4244)
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#include <libavcodec/avcodec.h>
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#include <libavutil/error.h>
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#include <libavutil/pixdesc.h>
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#pragma warning(pop)
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}
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std::string ffmpeg::tools::translate_encoder_capabilities(int capabilities)
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{
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// Sorted by relative importance.
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std::pair<int, std::string> caps[] = {
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{AV_CODEC_CAP_EXPERIMENTAL, "Experimental"},
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// Quality
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{AV_CODEC_CAP_LOSSLESS, "Lossless"},
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//{AV_CODEC_CAP_INTRA_ONLY, "I-Frames only"},
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// Threading
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//{AV_CODEC_CAP_FRAME_THREADS, "Frame-Threading"},
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//{AV_CODEC_CAP_SLICE_THREADS, "Slice-Threading"},
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//{AV_CODEC_CAP_AUTO_THREADS, "Automatic-Threading"},
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// Features
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{AV_CODEC_CAP_PARAM_CHANGE, "Dynamic Parameter Change"},
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{AV_CODEC_CAP_SUBFRAMES, "Sub-Frames"},
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{AV_CODEC_CAP_VARIABLE_FRAME_SIZE, "Variable Frame Size"},
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{AV_CODEC_CAP_SMALL_LAST_FRAME, "Small Final Frame"},
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//{AV_CODEC_CAP_DR1, "Uses get_buffer"},
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//{AV_CODEC_CAP_DELAY, "Requires Flush"},
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// Other
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{AV_CODEC_CAP_TRUNCATED, "Truncated"},
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{AV_CODEC_CAP_CHANNEL_CONF, "AV_CODEC_CAP_CHANNEL_CONF"},
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{AV_CODEC_CAP_DRAW_HORIZ_BAND, "AV_CODEC_CAP_DRAW_HORIZ_BAND"},
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{AV_CODEC_CAP_HWACCEL_VDPAU, "AV_CODEC_CAP_HWACCEL_VDPAU"},
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{AV_CODEC_CAP_AVOID_PROBING, "AV_CODEC_CAP_AVOID_PROBING"},
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};
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std::stringstream sstr;
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for (auto const kv : caps) {
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if (capabilities & kv.first) {
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capabilities &= ~kv.first;
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sstr << kv.second;
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if (capabilities != 0) {
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sstr << ", ";
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} else {
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break;
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}
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}
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}
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return sstr.str();
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}
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const char* ffmpeg::tools::get_pixel_format_name(AVPixelFormat v)
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{
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return av_get_pix_fmt_name(v);
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}
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const char* ffmpeg::tools::get_color_space_name(AVColorSpace v)
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{
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switch (v) {
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case AVCOL_SPC_RGB:
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return "RGB";
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case AVCOL_SPC_BT709:
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return "BT.709";
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case AVCOL_SPC_FCC:
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return "FCC Title 47 CoFR 73.682 (a)(20)";
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case AVCOL_SPC_BT470BG:
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return "BT.601 625";
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case AVCOL_SPC_SMPTE170M:
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case AVCOL_SPC_SMPTE240M:
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return "BT.601 525";
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case AVCOL_SPC_YCGCO:
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return "ITU-T SG16";
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case AVCOL_SPC_BT2020_NCL:
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return "BT.2020 NCL";
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case AVCOL_SPC_BT2020_CL:
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return "BT.2020 CL";
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case AVCOL_SPC_SMPTE2085:
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return "SMPTE 2085";
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case AVCOL_SPC_CHROMA_DERIVED_NCL:
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return "Chroma NCL";
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case AVCOL_SPC_CHROMA_DERIVED_CL:
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return "Chroma CL";
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case AVCOL_SPC_ICTCP:
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return "BT.2100";
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case AVCOL_SPC_NB:
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return "Not Part of ABI";
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}
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return "Unknown";
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}
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const char* ffmpeg::tools::get_error_description(int error)
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{
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switch (error) {
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case AVERROR(EPERM):
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return "Permission Denied";
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// case AVERROR(ENOENT):
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// case AVERROR(ESRCH):
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// case AVERROR(EINTR):
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// case AVERROR(EIO):
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// case AVERROR(ENXIO):
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// case AVERROR(E2BIG):
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// case AVERROR(ENOEXEC):
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// case AVERROR(EBADF):
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// case AVERROR(ECHILD):
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// case AVERROR(EAGAIN):
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case AVERROR(ENOMEM):
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return "Out Of Memory";
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// case AVERROR(EACCES):
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// case AVERROR(EFAULT):
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// case AVERROR(EBUSY):
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// case AVERROR(EEXIST):
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// case AVERROR(EXDEV):
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// case AVERROR(ENODEV):
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// case AVERROR(ENOTDIR):
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// case AVERROR(EISDIR):
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// case AVERROR(ENFILE):
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// case AVERROR(EMFILE):
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// case AVERROR(ENOTTY):
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// case AVERROR(EFBIG):
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// case AVERROR(ENOSPC):
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// case AVERROR(ESPIPE):
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// case AVERROR(EROFS):
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// case AVERROR(EMLINK):
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// case AVERROR(EPIPE):
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// case AVERROR(EDOM):
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// case AVERROR(EDEADLK):
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// case AVERROR(ENAMETOOLONG):
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// case AVERROR(ENOLCK):
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// case AVERROR(ENOSYS):
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// case AVERROR(ENOTEMPTY):
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case AVERROR(EINVAL):
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return "Invalid Value(s)";
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case AVERROR(ERANGE):
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return "Out of Range";
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// case AVERROR(EILSEQ):
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// case AVERROR(STRUNCATE):
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}
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return "Not Translated Yet";
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}
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AVPixelFormat ffmpeg::tools::obs_videoformat_to_avpixelformat(video_format v)
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{
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switch (v) {
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// 32-Bits
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case VIDEO_FORMAT_BGRX:
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return AV_PIX_FMT_BGR0;
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case VIDEO_FORMAT_BGRA:
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return AV_PIX_FMT_BGRA;
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case VIDEO_FORMAT_RGBA:
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return AV_PIX_FMT_RGBA;
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case VIDEO_FORMAT_I444:
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return AV_PIX_FMT_YUV444P;
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case VIDEO_FORMAT_YUY2:
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return AV_PIX_FMT_YUYV422;
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case VIDEO_FORMAT_YVYU:
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return AV_PIX_FMT_YVYU422;
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case VIDEO_FORMAT_UYVY:
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return AV_PIX_FMT_UYVY422;
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case VIDEO_FORMAT_I420:
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return AV_PIX_FMT_YUV420P;
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case VIDEO_FORMAT_NV12:
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return AV_PIX_FMT_NV12;
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}
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throw std::invalid_argument("unknown format");
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}
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AVColorSpace ffmpeg::tools::obs_videocolorspace_to_avcolorspace(video_colorspace v)
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{
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switch (v) {
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case VIDEO_CS_DEFAULT:
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case VIDEO_CS_709:
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return AVCOL_SPC_BT709;
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case VIDEO_CS_601:
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return AVCOL_SPC_SMPTE170M;
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}
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throw std::invalid_argument("unknown color space");
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}
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AVColorRange ffmpeg::tools::obs_videorangetype_to_avcolorrange(video_range_type v)
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{
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switch (v) {
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case VIDEO_RANGE_DEFAULT:
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case VIDEO_RANGE_FULL:
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return AVCOL_RANGE_JPEG;
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case VIDEO_RANGE_PARTIAL:
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return AVCOL_RANGE_MPEG;
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}
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throw std::invalid_argument("unknown range");
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}
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