九、显示可用的编解码器 -codecs
1、基本指令
帮助文档对应内容 :
-codecs show available codecs // 显示可用的编解码器 , 其等价于 encoders + decoders 组合
显示可用的编解码器命令 :
ffmpeg -codecs
执行过程 :
命令行输出 :
D:\ffmpeg>ffmpeg -codecs ffmpeg version n4.4-19-g8d172d9409 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10-win32 (GCC) 20210408 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-shared --disable-static --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --enable-libvmaf --enable-vulkan --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --enable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp libavutil 56. 70.100 / 56. 70.100 libavcodec 58.134.100 / 58.134.100 libavformat 58. 76.100 / 58. 76.100 libavdevice 58. 13.100 / 58. 13.100 libavfilter 7.110.100 / 7.110.100 libswscale 5. 9.100 / 5. 9.100 libswresample 3. 9.100 / 3. 9.100 libpostproc 55. 9.100 / 55. 9.100 Codecs: D..... = Decoding supported .E.... = Encoding supported ..V... = Video codec ..A... = Audio codec ..S... = Subtitle codec ...I.. = Intra frame-only codec ....L. = Lossy compression .....S = Lossless compression ------- D.VI.S 012v Uncompressed 4:2:2 10-bit D.V.L. 4xm 4X Movie D.VI.S 8bps QuickTime 8BPS video .EVIL. a64_multi Multicolor charset for Commodore 64 (encoders: a64multi ) .EVIL. a64_multi5 Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 ) D.V..S aasc Autodesk RLE D.V.L. agm Amuse Graphics Movie D.VIL. aic Apple Intermediate Codec DEVI.S alias_pix Alias/Wavefront PIX image DEVIL. amv AMV Video D.V.L. anm Deluxe Paint Animation D.V.L. ansi ASCII/ANSI art DEV..S apng APNG (Animated Portable Network Graphics) image D.V.L. arbc Gryphon's Anim Compressor D.V.L. argo Argonaut Games Video DEVIL. asv1 ASUS V1 DEVIL. asv2 ASUS V2 D.VIL. aura Auravision AURA D.VIL. aura2 Auravision Aura 2 DEV.L. av1 Alliance for Open Media AV1 (decoders: libdav1d libaom-av1 av1 av1_cuvid av1_qsv ) (encoders: libaom-av1 librav1e libsvtav1 ) D.V... avrn Avid AVI Codec DEVI.S avrp Avid 1:1 10-bit RGB Packer D.V.L. avs AVS (Audio Video Standard) video DEV.L. avs2 AVS2-P2/IEEE1857.4 (decoders: libdavs2 ) (encoders: libxavs2 ) D.V.L. avs3 AVS3-P2/IEEE1857.10 (decoders: libuavs3d ) DEVI.S avui Avid Meridien Uncompressed DEVI.S ayuv Uncompressed packed MS 4:4:4:4 D.V.L. bethsoftvid Bethesda VID video D.V.L. bfi Brute Force & Ignorance D.V.L. binkvideo Bink video D.VI.. bintext Binary text D.VI.S bitpacked Bitpacked DEVI.S bmp BMP (Windows and OS/2 bitmap) D.V..S bmv_video Discworld II BMV video D.VI.S brender_pix BRender PIX image
编码器类型说明 : 下面注释中说明了编码器的支持类型 , 编码 / 解码 / 视频 / 音频 / 字幕 / 内部帧 / 有损 / 无损 ;
Codecs: D..... = Decoding supported 支持解码 .E.... = Encoding supported 支持编码 ..V... = Video codec 视频编解码器 ..A... = Audio codec 音频编解码器 ..S... = Subtitle codec 字幕编解码器 ...I.. = Intra frame-only codec 内部帧编码器 , 每帧都独立编码 , 不需要参考其它帧 ; ....L. = Lossy compression 有损压缩 .....S = Lossless compression 无损压缩
2、查询 H.264 编解码器信息
查询 H.264 编解码器信息 :
ffmpeg -codecs | findstr 264
执行过程 :
命令行输出 :
D:\ffmpeg>ffmpeg -codecs | findstr 264 ffmpeg version n4.4-19-g8d172d9409 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10-win32 (GCC) 20210408 configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-shared --disable-static --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --enable-libvmaf --enable-vulkan --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --enable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp libavutil 56. 70.100 / 56. 70.100 libavcodec 58.134.100 / 58.134.100 libavformat 58. 76.100 / 58. 76.100 libavdevice 58. 13.100 / 58. 13.100 libavfilter 7.110.100 / 7.110.100 libswscale 5. 9.100 / 5. 9.100 libswresample 3. 9.100 / 3. 9.100 libpostproc 55. 9.100 / 55. 9.100 DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_qsv h264_cuvid ) (encoders: libx264 libx264rgb h264_amf h264_mf h264_nvenc h264_qsv nvenc nvenc_h264 ) D:\ffmpeg>
h264 编解码器的属性是 DEV.LS
D 表示支持解码
E 表示支持编码
V 表示视频编码
L 表示有损压缩
S 表示无损压缩
