ferdnyc
commented
3 years ago Unfortunately, that's probably not likely to happen any time soon. Mainly because the list of what's "supported and present" is dizzying, and doesn't really tell the whole story.
On Fedora 34, the available codecs list would technically be...
$ ffmpeg -encoders|& egrep '^ A'
$ ffmpeg -encoders|& egrep '^ A'
A..... = Audio
A..... aac AAC (Advanced Audio Coding)
A..... ac3 ATSC A/52A (AC-3)
A..... ac3_fixed ATSC A/52A (AC-3) (codec ac3)
A..... adpcm_adx SEGA CRI ADX ADPCM
A..... adpcm_argo ADPCM Argonaut Games
A..... g722 G.722 ADPCM (codec adpcm_g722)
A..... g726 G.726 ADPCM (codec adpcm_g726)
A..... g726le G.726 little endian ADPCM ("right-justified") (codec adpcm_g726le)
A..... adpcm_ima_alp ADPCM IMA High Voltage Software ALP
A..... adpcm_ima_amv ADPCM IMA AMV
A..... adpcm_ima_apm ADPCM IMA Ubisoft APM
A..... adpcm_ima_qt ADPCM IMA QuickTime
A..... adpcm_ima_ssi ADPCM IMA Simon & Schuster Interactive
A..... adpcm_ima_wav ADPCM IMA WAV
A..... adpcm_ms ADPCM Microsoft
A..... adpcm_swf ADPCM Shockwave Flash
A..... adpcm_yamaha ADPCM Yamaha
A..... alac ALAC (Apple Lossless Audio Codec)
A..... libopencore_amrnb OpenCORE AMR-NB (Adaptive Multi-Rate Narrow-Band) (codec amr_nb)
A..... libvo_amrwbenc Android VisualOn AMR-WB (Adaptive Multi-Rate Wide-Band) (codec amr_wb)
A..... aptx aptX (Audio Processing Technology for Bluetooth)
A..... aptx_hd aptX HD (Audio Processing Technology for Bluetooth)
A..... comfortnoise RFC 3389 comfort noise generator
A..X.. dca DCA (DTS Coherent Acoustics) (codec dts)
A..... eac3 ATSC A/52 E-AC-3
A..... flac FLAC (Free Lossless Audio Codec)
A..... g723_1 G.723.1
A..... libgsm libgsm GSM (codec gsm)
A..... libgsm_ms libgsm GSM Microsoft variant (codec gsm_ms)
A..X.. mlp MLP (Meridian Lossless Packing)
A..... mp2 MP2 (MPEG audio layer 2)
A..... mp2fixed MP2 fixed point (MPEG audio layer 2) (codec mp2)
A..... libmp3lame libmp3lame MP3 (MPEG audio layer 3) (codec mp3)
A..... nellymoser Nellymoser Asao
A..X.. opus Opus
A..... libopus libopus Opus (codec opus)
A..... pcm_alaw PCM A-law / G.711 A-law
A..... pcm_dvd PCM signed 16|20|24-bit big-endian for DVD media
A..... pcm_f32be PCM 32-bit floating point big-endian
A..... pcm_f32le PCM 32-bit floating point little-endian
A..... pcm_f64be PCM 64-bit floating point big-endian
A..... pcm_f64le PCM 64-bit floating point little-endian
A..... pcm_mulaw PCM mu-law / G.711 mu-law
A..... pcm_s16be PCM signed 16-bit big-endian
A..... pcm_s16be_planar PCM signed 16-bit big-endian planar
A..... pcm_s16le PCM signed 16-bit little-endian
A..... pcm_s16le_planar PCM signed 16-bit little-endian planar
A..... pcm_s24be PCM signed 24-bit big-endian
A..... pcm_s24daud PCM D-Cinema audio signed 24-bit
A..... pcm_s24le PCM signed 24-bit little-endian
A..... pcm_s24le_planar PCM signed 24-bit little-endian planar
A..... pcm_s32be PCM signed 32-bit big-endian
A..... pcm_s32le PCM signed 32-bit little-endian
A..... pcm_s32le_planar PCM signed 32-bit little-endian planar
A..... pcm_s64be PCM signed 64-bit big-endian
A..... pcm_s64le PCM signed 64-bit little-endian
A..... pcm_s8 PCM signed 8-bit
A..... pcm_s8_planar PCM signed 8-bit planar
A..... pcm_u16be PCM unsigned 16-bit big-endian
A..... pcm_u16le PCM unsigned 16-bit little-endian
A..... pcm_u24be PCM unsigned 24-bit big-endian
A..... pcm_u24le PCM unsigned 24-bit little-endian
A..... pcm_u32be PCM unsigned 32-bit big-endian
A..... pcm_u32le PCM unsigned 32-bit little-endian
A..... pcm_u8 PCM unsigned 8-bit
A..... pcm_vidc PCM Archimedes VIDC
A..... real_144 RealAudio 1.0 (14.4K) (codec ra_144)
A..... roq_dpcm id RoQ DPCM
A..X.. s302m SMPTE 302M
A..... sbc SBC (low-complexity subband codec)
A..X.. sonic Sonic
A..X.. sonicls Sonic lossless
A..... libspeex libspeex Speex (codec speex)
A..X.. truehd TrueHD
A..... tta TTA (True Audio)
A..X.. vorbis Vorbis
A..... libvorbis libvorbis (codec vorbis)
A..... wavpack WavPack
A..... wmav1 Windows Media Audio 1
A..... wmav2 Windows Media Audio 2
But obviously plenty of those are stupid and nobody would want to use them, and for what remains some are more appropriate with certain video codecs / muxers, others less so.
Video has the same problem, here's the list of all possible inputs to the video codec field:
$ ffmpeg -encoders|& egrep '^ V'
$ ffmpeg -encoders|& egrep '^ V'
V..... = Video
V..... a64multi Multicolor charset for Commodore 64 (codec a64_multi)
V..... a64multi5 Multicolor charset for Commodore 64, extended with 5th color (colram) (codec a64_multi5)
V..... alias_pix Alias/Wavefront PIX image
V..... amv AMV Video
V..... apng APNG (Animated Portable Network Graphics) image
V..... asv1 ASUS V1
V..... asv2 ASUS V2
V..... libaom-av1 libaom AV1 (codec av1)
V....D librav1e librav1e AV1 (codec av1)
V..... libsvtav1 SVT-AV1(Scalable Video Technology for AV1) encoder (codec av1)
V..... avrp Avid 1:1 10-bit RGB Packer
V..X.. avui Avid Meridien Uncompressed
V..... ayuv Uncompressed packed MS 4:4:4:4
V..... bmp BMP (Windows and OS/2 bitmap)
VF.... cfhd GoPro CineForm HD
V..... cinepak Cinepak
V..... cljr Cirrus Logic AccuPak
V.S... vc2 SMPTE VC-2 (codec dirac)
VFS... dnxhd VC3/DNxHD
V..... dpx DPX (Digital Picture Exchange) image
VFS... dvvideo DV (Digital Video)
VF.... exr OpenEXR image
V.S... ffv1 FFmpeg video codec #1
VF.... ffvhuff Huffyuv FFmpeg variant
V..... fits Flexible Image Transport System
V..... flashsv Flash Screen Video
V..... flashsv2 Flash Screen Video Version 2
V..... flv FLV / Sorenson Spark / Sorenson H.263 (Flash Video) (codec flv1)
V..... gif GIF (Graphics Interchange Format)
V..... h261 H.261
V..... h263 H.263 / H.263-1996
V..... h263_v4l2m2m V4L2 mem2mem H.263 encoder wrapper (codec h263)
V.S... h263p H.263+ / H.263-1998 / H.263 version 2
V..... libx264 libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (codec h264)
V..... libx264rgb libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB (codec h264)
V....D h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... h264_qsv H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration) (codec h264)
V..... h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264)
V....D h264_vaapi H.264/AVC (VAAPI) (codec h264)
V..... nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_h264 NVIDIA NVENC H.264 encoder (codec h264)
V..... libx265 libx265 H.265 / HEVC (codec hevc)
V..... nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
V....D hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_qsv HEVC (Intel Quick Sync Video acceleration) (codec hevc)
V..... hevc_v4l2m2m V4L2 mem2mem HEVC encoder wrapper (codec hevc)
V....D hevc_vaapi H.265/HEVC (VAAPI) (codec hevc)
VF.... huffyuv Huffyuv / HuffYUV
V..... jpeg2000 JPEG 2000
VF.... libopenjpeg OpenJPEG JPEG 2000 (codec jpeg2000)
VF.... jpegls JPEG-LS
VF.... ljpeg Lossless JPEG
VF.... magicyuv MagicYUV video
VFS... mjpeg MJPEG (Motion JPEG)
V..... mjpeg_qsv MJPEG (Intel Quick Sync Video acceleration) (codec mjpeg)
V....D mjpeg_vaapi MJPEG (VAAPI) (codec mjpeg)
V.S... mpeg1video MPEG-1 video
V.S... mpeg2video MPEG-2 video
V..... mpeg2_qsv MPEG-2 video (Intel Quick Sync Video acceleration) (codec mpeg2video)
V....D mpeg2_vaapi MPEG-2 (VAAPI) (codec mpeg2video)
V.S... mpeg4 MPEG-4 part 2
V..... libxvid libxvidcore MPEG-4 part 2 (codec mpeg4)
V..... mpeg4_v4l2m2m V4L2 mem2mem MPEG4 encoder wrapper (codec mpeg4)
V..... msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2
V..... msmpeg4 MPEG-4 part 2 Microsoft variant version 3 (codec msmpeg4v3)
V..... msvideo1 Microsoft Video-1
V..... pam PAM (Portable AnyMap) image
V..... pbm PBM (Portable BitMap) image
V..... pcx PC Paintbrush PCX image
V..... pfm PFM (Portable FloatMap) image
V..... pgm PGM (Portable GrayMap) image
V..... pgmyuv PGMYUV (Portable GrayMap YUV) image
VF.... png PNG (Portable Network Graphics) image
V..... ppm PPM (Portable PixelMap) image
VF.... prores Apple ProRes
VF.... prores_aw Apple ProRes (codec prores)
VFS... prores_ks Apple ProRes (iCodec Pro) (codec prores)
V..... qtrle QuickTime Animation (RLE) video
V..... r10k AJA Kona 10-bit RGB Codec
V..... r210 Uncompressed RGB 10-bit
V..... rawvideo raw video
V..... roqvideo id RoQ video (codec roq)
V..... rpza QuickTime video (RPZA)
V..... rv10 RealVideo 1.0
V..... rv20 RealVideo 2.0
V..... sgi SGI image
V..... snow Snow
V..... speedhq NewTek SpeedHQ
V..... sunrast Sun Rasterfile image
V..... svq1 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
V..... targa Truevision Targa image
V..... libtheora libtheora Theora (codec theora)
VF.... tiff TIFF image
VF.... utvideo Ut Video
V..... v210 Uncompressed 4:2:2 10-bit
V..... v308 Uncompressed packed 4:4:4
V..... v408 Uncompressed packed QT 4:4:4:4
V..... v410 Uncompressed 4:4:4 10-bit
V..... libvpx libvpx VP8 (codec vp8)
V..... vp8_v4l2m2m V4L2 mem2mem VP8 encoder wrapper (codec vp8)
V....D vp8_vaapi VP8 (VAAPI) (codec vp8)
V..... libvpx-vp9 libvpx VP9 (codec vp9)
V....D vp9_vaapi VP9 (VAAPI) (codec vp9)
V..... vp9_qsv VP9 video (Intel Quick Sync Video acceleration) (codec vp9)
V..... libwebp_anim libwebp WebP image (codec webp)
V..... libwebp libwebp WebP image (codec webp)
V..... wmv1 Windows Media Video 7
V..... wmv2 Windows Media Video 8
V..... wrapped_avframe AVFrame to AVPacket passthrough
V..... xbm XBM (X BitMap) image
V..... xface X-face image
V..... xwd XWD (X Window Dump) image
V..... y41p Uncompressed YUV 4:1:1 12-bit
V..... yuv4 Uncompressed packed 4:2:0
VF.... zlib LCL (LossLess Codec Library) ZLIB
V..... zmbv Zip Motion Blocks Video
Of course, many of those are still-picture formats, others are accelerated and may or may not be usable with the current video hardware. FFmpeg does not lend itself well to introspecting such things (particularly the hardware accelerated encoders.)
So, given the unwieldy and not-particularly-useful (or comprehensible) nature of those lists, in the Simple export settings we've defined encoding presets that select reasonable choices for video and audio codec together. In effect, Export does provide that selector, in the other view. (It just offers a limited — "curated", if I'm being generous — set of options, and doesn't allow them to be changed separately.)
For users who want to override the predefined configs, a free-form text field provides the maximum flexibility and future-proofing.
However, if you're looking to access a particular codec combination that's not part of the current presets, it is actually possible to define your own presets — just drop an XML file in $HOME/.openshot_qt/presets/ that adheres to the format used in the existing files from src/presets/ (openshot_qt/presets/ in the installed package), and the parameters you define there will be offered as one of the choices on the Simple Export settings tab.
(Here's a typical preset definition:) https://github.com/OpenShot/openshot-qt/blob/a94c526b02297cba6cdfb96fa4fd440c8fe624c0/src/presets/format_mp4_x264.xml#L1-L20
Yes, the audio channel layout is a magic number, which is terrible. But suffice it to say, 3 is stereo and that's the only one you want to use right now anyway. The values are the same as FFmpeg's AV_CH_LAYOUT_* macros.
stale[bot]
Under export settings, and audio output selection, change the open text field allowing one to specify the ouput codec to a dropdown listing the supported and present codecs.