@ -19,6 +19,164 @@ enabled demuxers and muxers.
A description of some of the currently available muxers follows.
@anchor{raw muxers}
@section Raw muxers
This section covers raw muxers. They accept a single stream matching
the designated codec. They do not store timestamps or metadata. The
recognized extension is the same as the muxer name unless indicated
otherwise.
It comprises the following muxers. The media type and the eventual
extensions used to automatically selects the muxer from the output
extensions are also shown.
@table @samp
@item ac3 @emph{audio}
Dolby Digital, also known as AC-3.
@item adx @emph{audio}
CRI Middleware ADX audio.
This muxer will write out the total sample count near the start of the
first packet when the output is seekable and the count can be stored
in 32 bits.
@item aptx @emph{audio}
aptX (Audio Processing Technology for Bluetooth)
@item aptx_hd @emph{audio} (aptxdh)
aptX HD (Audio Processing Technology for Bluetooth) audio
@item avs2 @emph{video} (avs, avs2)
AVS2-P2/IEEE1857.4 video.
@item cavsvideo @emph{video} (cavs)
Chinese AVS (Audio Video Standard)
@item codec2raw @emph{audio}
Codec 2 audio.
No extension is registered so format name has to be supplied e.g. with
the ffmpeg CLI tool @code{-f codec2raw}.
@item data @emph{any}
Generic data muxer.
This muxer accepts a single stream with any codec of any type. The
input stream has to be selected using the @code{-map} option with the
@command{ffmpeg} CLI tool.
No extension is registered so format name has to be supplied e.g. with
the @command{ffmpeg} CLI tool @code{-f data}.
@item dirac @emph{video} (drc, vc2)
BBC Dirac video.
The Dirac Pro codec is a subset and is standardized as SMPTE VC-2.
@item dnxhd @emph{video} (dnxhd, dnxhr)
Avid DNxHD video.
It is standardized as SMPTE VC-3. Accepts DNxHR streams.
@item dts @emph{audio}
DTS Coherent Acoustics (DCA) audio
@item eac3 @emph{audio}
Dolby Digital Plus, also known as Enhanced AC-3
@item evc @emph{video} (evc)
MPEG-5 Essential Video Coding (EVC) / EVC / MPEG-5 Part 1 EVC video
@item g722 @emph{audio}
ITU-T G.722 audio
@item g723_1 @emph{audio} (tco, rco)
ITU-T G.723.1 audio
@item g726 @emph{audio}
ITU-T G.726 big-endian ("left-justified") audio.
No extension is registered so format name has to be supplied e.g. with
the @command{ffmpeg} CLI tool @code{-f g726}.
@item g726le @emph{audio}
ITU-T G.726 little-endian ("right-justified") audio.
No extension is registered so format name has to be supplied e.g. with
the @command{ffmpeg} CLI tool @code{-f g726le}.
@item gsm @emph{audio}
Global System for Mobile Communications audio
@item h261 @emph{video}
ITU-T H.261 video
@item h263 @emph{video}
ITU-T H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2 video
@item h264 @emph{video} (h264, 264)
ITU-T H.264 / MPEG-4 Part 10 AVC video. Bitstream shall be converted
to Annex B syntax if it's in length-prefixed mode.
@item hevc @emph{video} (hevc, h265, 265)
ITU-T H.265 / MPEG-H Part 2 HEVC video. Bitstream shall be converted
to Annex B syntax if it's in length-prefixed mode.
@item m4v @emph{video}
MPEG-4 Part 2 video
@item mjpeg @emph{video} (mjpg, mjpeg)
Motion JPEG video
@item mlp @emph{audio}
Meridian Lossless Packing, also known as Packed PCM
@item mp2 @emph{audio} (mp2, m2a, mpa)
MPEG-1 Audio Layer II audio
@item mpeg1video @emph{video} (mpg, mpeg, m1v)
MPEG-1 Part 2 video.
@item mpeg2video @emph{video} (m2v)
ITU-T H.262 / MPEG-2 Part 2 video
@item obu @emph{video}
AV1 low overhead Open Bitstream Units muxer.
Temporal delimiter OBUs will be inserted in all temporal units of the
stream.
@item rawvideo @emph{video} (yuv, rgb)
Raw uncompressed video.
@item sbc @emph{audio} (sbc, msbc)
Bluetooth SIG low-complexity subband codec audio
@item truehd @emph{audio} (thd)
Dolby TrueHD audio
@item vc1 @emph{video}
SMPTE 421M / VC-1 video
@end table
@subsection Examples
@itemize
@item
Store raw video frames with the @samp{rawvideo} muxer using @command{ffmpeg}:
@example
ffmpeg -f lavfi -i testsrc -t 10 -s hd1080p testsrc.yuv
@end example
Since the rawvideo muxer do not store the information related to size
and format, this information must be provided when demuxing the file:
@example
ffplay -video_size 1920x1080 -pixel_format rgb24 -f rawvideo testsrc.rgb
@end example
@end itemize
@section MOV/MPEG-4/ISOMBFF muxers
This section covers formats belonging to the QuickTime / MOV family,
@ -2220,188 +2378,6 @@ ogg files can be safely chained.
@end table
@anchor{raw muxers}
@section raw muxers
Raw muxers accept a single stream matching the designated codec. They do not store timestamps or metadata.
The recognized extension is the same as the muxer name unless indicated otherwise.
@subsection ac3
Dolby Digital, also known as AC-3, audio.
@subsection adx
CRI Middleware ADX audio.
This muxer will write out the total sample count near the start of the first packet
when the output is seekable and the count can be stored in 32 bits.
@subsection aptx
aptX (Audio Processing Technology for Bluetooth) audio.
@subsection aptx_hd
aptX HD (Audio Processing Technology for Bluetooth) audio.
Extensions: aptxhd
@subsection avs2
AVS2-P2/IEEE1857.4 video.
Extensions: avs, avs2
@subsection cavsvideo
Chinese AVS (Audio Video Standard) video.
Extensions: cavs
@subsection codec2raw
Codec 2 audio.
No extension is registered so format name has to be supplied e.g. with the ffmpeg CLI tool @code{-f codec2raw}.
@subsection data
Data muxer accepts a single stream with any codec of any type.
The input stream has to be selected using the @code{-map} option with the ffmpeg CLI tool.
No extension is registered so format name has to be supplied e.g. with the ffmpeg CLI tool @code{-f data}.
@subsection dirac
BBC Dirac video. The Dirac Pro codec is a subset and is standardized as SMPTE VC-2.
Extensions: drc, vc2
@subsection dnxhd
Avid DNxHD video. It is standardized as SMPTE VC-3. Accepts DNxHR streams.
Extensions: dnxhd, dnxhr
@subsection dts
DTS Coherent Acoustics (DCA) audio.
@subsection eac3
Dolby Digital Plus, also known as Enhanced AC-3, audio.
@subsection evc
MPEG-5 Essential Video Coding (EVC) / EVC / MPEG-5 Part 1 EVC video.
Extensions: evc
@subsection g722
ITU-T G.722 audio.
@subsection g723_1
ITU-T G.723.1 audio.
Extensions: tco, rco
@subsection g726
ITU-T G.726 big-endian ("left-justified") audio.
No extension is registered so format name has to be supplied e.g. with the ffmpeg CLI tool @code{-f g726}.
@subsection g726le
ITU-T G.726 little-endian ("right-justified") audio.
No extension is registered so format name has to be supplied e.g. with the ffmpeg CLI tool @code{-f g726le}.
@subsection gsm
Global System for Mobile Communications audio.
@subsection h261
ITU-T H.261 video.
@subsection h263
ITU-T H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2 video.
@subsection h264
ITU-T H.264 / MPEG-4 Part 10 AVC video. Bitstream shall be converted to Annex B syntax if it's in length-prefixed mode.
Extensions: h264, 264
@subsection hevc
ITU-T H.265 / MPEG-H Part 2 HEVC video. Bitstream shall be converted to Annex B syntax if it's in length-prefixed mode.
Extensions: hevc, h265, 265
@subsection m4v
MPEG-4 Part 2 video.
@subsection mjpeg
Motion JPEG video.
Extensions: mjpg, mjpeg
@subsection mlp
Meridian Lossless Packing, also known as Packed PCM, audio.
@subsection mp2
MPEG-1 Audio Layer II audio.
Extensions: mp2, m2a, mpa
@subsection mpeg1video
MPEG-1 Part 2 video.
Extensions: mpg, mpeg, m1v
@subsection mpeg2video
ITU-T H.262 / MPEG-2 Part 2 video.
Extensions: m2v
@subsection obu
AV1 low overhead Open Bitstream Units muxer. Temporal delimiter OBUs will be inserted in all temporal units of the stream.
@subsection rawvideo
Raw uncompressed video.
Extensions: yuv, rgb
@subsection sbc
Bluetooth SIG low-complexity subband codec audio.
Extensions: sbc, msbc
@subsection truehd
Dolby TrueHD audio.
Extensions: thd
@subsection vc1
SMPTE 421M / VC-1 video.
@anchor{segment}
@section segment, stream_segment, ssegment
Stefano Sabatini
12 months ago