A description of some of the currently available muxers follows.
+@anchor{a64}
+@section a64
+
+A64 muxer for Commodore 64 video. Accepts a single @code{a64_multi} or @code{a64_multi5} codec video stream.
+
+@anchor{adts}
+@section adts
+
+Audio Data Transport Stream muxer. It accepts a single AAC stream.
+
+@subsection Options
+
+It accepts the following options:
+
+@table @option
+
+@item write_id3v2 @var{bool}
+Enable to write ID3v2.4 tags at the start of the stream. Default is disabled.
+
+@item write_apetag @var{bool}
+Enable to write APE tags at the end of the stream. Default is disabled.
+
+@item write_mpeg2 @var{bool}
+Enable to set MPEG version bit in the ADTS frame header to 1 which indicates MPEG-2. Default is 0, which indicates MPEG-4.
+
+@end table
+
@anchor{aiff}
@section aiff
@end table
+@anchor{alp}
+@section alp
+
+Muxer for audio of High Voltage Software's Lego Racers game. It accepts a single ADPCM_IMA_ALP stream
+with no more than 2 channels nor a sample rate greater than 44100 Hz.
+
+Extensions: tun, pcm
+
+@subsection Options
+
+It accepts the following options:
+
+@table @option
+
+@item type @var{type}
+Set file type.
+
+@table @samp
+@item tun
+Set file type as music. Must have a sample rate of 22050 Hz.
+
+@item pcm
+Set file type as sfx.
+
+@item auto
+Set file type as per output file extension. @code{.pcm} results in type @code{pcm} else type @code{tun} is set. @var{(default)}
+
+@end table
+
+@end table
+
@anchor{asf}
@section asf
compatibility with software that only supports a single audio stream in AVI
(see @ref{amerge,,the "amerge" section in the ffmpeg-filters manual,ffmpeg-filters}).
+@item flipped_raw_rgb
+If set to true, store positive height for raw RGB bitmaps, which indicates
+bitmap is stored bottom-up. Note that this option does not flip the bitmap
+which has to be done manually beforehand, e.g. by using the vflip filter.
+Default is @var{false} and indicates bitmap is stored top down.
+
@end table
@anchor{chromaprint}
ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc -
@end example
-@section flv
-
-Adobe Flash Video Format muxer.
-
-This muxer accepts the following options:
-
-@table @option
-
-@item flvflags @var{flags}
-Possible values:
-
-@table @samp
-
-@item aac_seq_header_detect
-Place AAC sequence header based on audio stream data.
-
-@item no_sequence_end
-Disable sequence end tag.
-
-@item no_metadata
-Disable metadata tag.
-
-@item no_duration_filesize
-Disable duration and filesize in metadata when they are equal to zero
-at the end of stream. (Be used to non-seekable living stream).
-
-@item add_keyframe_index
-Used to facilitate seeking; particularly for HTTP pseudo streaming.
-@end table
-@end table
-
@anchor{dash}
@section dash
@end example
@table @option
-@item min_seg_duration @var{microseconds}
-This is a deprecated option to set the segment length in microseconds, use @var{seg_duration} instead.
@item seg_duration @var{duration}
Set the segment length in seconds (fractional value can be set). The value is
treated as average segment duration when @var{use_template} is enabled and
+@var{use_timeline} is disabled and as minimum segment duration for all the other
+use cases.
@item frag_duration @var{duration}
Set the length in seconds of fragments within segments (fractional value can be set).
@item frag_type @var{type}
@item http_persistent @var{http_persistent}
Use persistent HTTP connections. Applicable only for HTTP output.
@item hls_playlist @var{hls_playlist}
-Generate HLS playlist files as well. The master playlist is generated with the filename master.m3u8.
+Generate HLS playlist files as well. The master playlist is generated with the filename @var{hls_master_name}.
One media playlist file is generated for each stream with filenames media_0.m3u8, media_1.m3u8, etc.
+@item hls_master_name @var{file_name}
+HLS master playlist name. Default is "master.m3u8".
@item streaming @var{streaming}
Enable (1) or disable (0) chunk streaming mode of output. In chunk streaming
mode, each frame will be a moof fragment which forms a chunk.
Please note that descriptor string should be a self-closing xml tag.
seg_duration, frag_duration and frag_type override the global option values for each adaptation set.
For example, -adaptation_sets "id=0,seg_duration=2,frag_duration=1,frag_type=duration,streams=v id=1,seg_duration=2,frag_type=none,streams=a"
+type_id marks an adaptation set as containing streams meant to be used for Trick Mode for the referenced adaptation set.
+For example, -adaptation_sets "id=0,seg_duration=2,frag_type=none,streams=0 id=1,seg_duration=10,frag_type=none,trick_id=0,streams=1"
@item timeout @var{timeout}
Set timeout for socket I/O operations. Applicable only for HTTP output.
@item index_correction @var{index_correction}
@item master_m3u8_publish_rate @var{master_m3u8_publish_rate}
Publish master playlist repeatedly every after specified number of segment intervals.
-@item -write_prft @var{write_prft}
+@item write_prft @var{write_prft}
Write Producer Reference Time elements on supported streams. This also enables writing
prft boxes in the underlying muxer. Applicable only when the @var{utc_url} option is enabled.
+It's set to auto by default, in which case the muxer will attempt to enable it only in modes
+that require it.
-@item -mpd_profile @var{mpd_profile}
+@item mpd_profile @var{mpd_profile}
Set one or more manifest profiles.
-@item -http_opts @var{http_opts}
-List of options to pass to the underlying HTTP protocol. Applicable only for HTTP output.
+@item http_opts @var{http_opts}
+A :-separated list of key=value options to pass to the underlying HTTP
+protocol. Applicable only for HTTP output.
-@item -target_latency @var{target_latency}
+@item target_latency @var{target_latency}
Set an intended target latency in seconds (fractional value can be set) for serving. Applicable only when @var{streaming} and @var{write_prft} options are enabled.
This is an informative fields clients can use to measure the latency of the service.
+@item min_playback_rate @var{min_playback_rate}
+Set the minimum playback rate indicated as appropriate for the purposes of automatically
+adjusting playback latency and buffer occupancy during normal playback by clients.
+
+@item max_playback_rate @var{max_playback_rate}
+Set the maximum playback rate indicated as appropriate for the purposes of automatically
+adjusting playback latency and buffer occupancy during normal playback by clients.
+
+@item update_period @var{update_period}
+ Set the mpd update period ,for dynamic content.
+ The unit is second.
+
+@end table
+
+@anchor{fifo}
+@section fifo
+
+The fifo pseudo-muxer allows the separation of encoding and muxing by using
+first-in-first-out queue and running the actual muxer in a separate thread. This
+is especially useful in combination with the @ref{tee} muxer and can be used to
+send data to several destinations with different reliability/writing speed/latency.
+
+API users should be aware that callback functions (interrupt_callback,
+io_open and io_close) used within its AVFormatContext must be thread-safe.
+
+The behavior of the fifo muxer if the queue fills up or if the output fails is
+selectable,
+
+@itemize @bullet
+
+@item
+output can be transparently restarted with configurable delay between retries
+based on real time or time of the processed stream.
+
+@item
+encoding can be blocked during temporary failure, or continue transparently
+dropping packets in case fifo queue fills up.
+
+@end itemize
+
+@table @option
+
+@item fifo_format
+Specify the format name. Useful if it cannot be guessed from the
+output name suffix.
+
+@item queue_size
+Specify size of the queue (number of packets). Default value is 60.
+
+@item format_opts
+Specify format options for the underlying muxer. Muxer options can be specified
+as a list of @var{key}=@var{value} pairs separated by ':'.
+
+@item drop_pkts_on_overflow @var{bool}
+If set to 1 (true), in case the fifo queue fills up, packets will be dropped
+rather than blocking the encoder. This makes it possible to continue streaming without
+delaying the input, at the cost of omitting part of the stream. By default
+this option is set to 0 (false), so in such cases the encoder will be blocked
+until the muxer processes some of the packets and none of them is lost.
+
+@item attempt_recovery @var{bool}
+If failure occurs, attempt to recover the output. This is especially useful
+when used with network output, since it makes it possible to restart streaming transparently.
+By default this option is set to 0 (false).
+
+@item max_recovery_attempts
+Sets maximum number of successive unsuccessful recovery attempts after which
+the output fails permanently. By default this option is set to 0 (unlimited).
+
+@item recovery_wait_time @var{duration}
+Waiting time before the next recovery attempt after previous unsuccessful
+recovery attempt. Default value is 5 seconds.
+
+@item recovery_wait_streamtime @var{bool}
+If set to 0 (false), the real time is used when waiting for the recovery
+attempt (i.e. the recovery will be attempted after at least
+recovery_wait_time seconds).
+If set to 1 (true), the time of the processed stream is taken into account
+instead (i.e. the recovery will be attempted after at least @var{recovery_wait_time}
+seconds of the stream is omitted).
+By default, this option is set to 0 (false).
+
+@item recover_any_error @var{bool}
+If set to 1 (true), recovery will be attempted regardless of type of the error
+causing the failure. By default this option is set to 0 (false) and in case of
+certain (usually permanent) errors the recovery is not attempted even when
+@var{attempt_recovery} is set to 1.
+
+@item restart_with_keyframe @var{bool}
+Specify whether to wait for the keyframe after recovering from
+queue overflow or failure. This option is set to 0 (false) by default.
+
+@item timeshift @var{duration}
+Buffer the specified amount of packets and delay writing the output. Note that
+@var{queue_size} must be big enough to store the packets for timeshift. At the
+end of the input the fifo buffer is flushed at realtime speed.
+
+@end table
+
+@subsection Examples
+
+@itemize
+
+@item
+Stream something to rtmp server, continue processing the stream at real-time
+rate even in case of temporary failure (network outage) and attempt to recover
+streaming every second indefinitely.
+@example
+ffmpeg -re -i ... -c:v libx264 -c:a aac -f fifo -fifo_format flv -map 0:v -map 0:a
+ -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 1 rtmp://example.com/live/stream_name
+@end example
+
+@end itemize
+
+@section flv
+
+Adobe Flash Video Format muxer.
+
+This muxer accepts the following options:
+
+@table @option
+
+@item flvflags @var{flags}
+Possible values:
+
+@table @samp
+
+@item aac_seq_header_detect
+Place AAC sequence header based on audio stream data.
+
+@item no_sequence_end
+Disable sequence end tag.
+
+@item no_metadata
+Disable metadata tag.
+
+@item no_duration_filesize
+Disable duration and filesize in metadata when they are equal to zero
+at the end of stream. (Be used to non-seekable living stream).
+
+@item add_keyframe_index
+Used to facilitate seeking; particularly for HTTP pseudo streaming.
+@end table
@end table
@anchor{framecrc}
This muxer supports the following options:
@table @option
-@item hls_init_time @var{seconds}
-Set the initial target segment length in seconds. Default value is @var{0}.
+@item hls_init_time @var{duration}
+Set the initial target segment length. Default value is @var{0}.
+
+@var{duration} must be a time duration specification,
+see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
+
Segment will be cut on the next key frame after this time has passed on the first m3u8 list.
After the initial playlist is filled @command{ffmpeg} will cut segments
at duration equal to @code{hls_time}
-@item hls_time @var{seconds}
-Set the target segment length in seconds. Default value is 2.
+@item hls_time @var{duration}
+Set the target segment length. Default value is 2.
+
+@var{duration} must be a time duration specification,
+see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
Segment will be cut on the next key frame after this time has passed.
@item hls_list_size @var{size}
parameters. Values containing @code{:} special characters must be
escaped.
-@item hls_wrap @var{wrap}
-This is a deprecated option, you can use @code{hls_list_size}
-and @code{hls_flags delete_segments} instead it
-
-This option is useful to avoid to fill the disk with many segment
-files, and limits the maximum number of segment files written to disk
-to @var{wrap}.
-
-
@item hls_start_number_source
Start the playlist sequence number (@code{#EXT-X-MEDIA-SEQUENCE}) according to the specified source.
Unless @code{hls_flags single_file} is set, it also specifies source of starting sequence numbers of
@item epoch
The start number will be the seconds since epoch (1970-01-01 00:00:00)
+@item epoch_us
+The start number will be the microseconds since epoch (1970-01-01 00:00:00)
+
@item datetime
The start number will be based on the current date/time as YYYYmmddHHMMSS. e.g. 20161231235759.
@file{vs0/file_000.ts}, @file{vs0/file_001.ts}, @file{vs0/file_002.ts}, etc. and
@file{vs1/file_000.ts}, @file{vs1/file_001.ts}, @file{vs1/file_002.ts}, etc.
-@item use_localtime
-Same as strftime option, will be deprecated.
-
@item strftime
Use strftime() on @var{filename} to expand the segment filename with localtime.
The segment number is also available in this mode, but to use it, you need to specify second_level_segment_index
This example will produce the playlist, @file{out.m3u8}, and segment files:
@file{file-20160215-0001.ts}, @file{file-20160215-0002.ts}, etc.
-@item use_localtime_mkdir
-Same as strftime_mkdir option, will be deprecated .
-
@item strftime_mkdir
Used together with -strftime_mkdir, it will create all subdirectories which
is expanded in @var{filename}.
is saved as @var{playlist name}.key.
@item -hls_enc_key @var{key}
-Hex-coded 16byte key to encrypt the segments, by default it
+16-octet key to encrypt the segments, by default it
is randomly generated.
@item -hls_enc_key_url @var{keyurl}
in the playlist.
@item -hls_enc_iv @var{iv}
-Hex-coded 16byte initialization vector for every segment instead
+16-octet initialization vector for every segment instead
of the autogenerated ones.
@item hls_segment_type @var{flags}
@item hls_fmp4_init_filename @var{filename}
Set filename to the fragment files header file, default filename is @file{init.mp4}.
+Use @code{-strftime 1} on @var{filename} to expand the segment filename with localtime.
+@example
+ffmpeg -i in.nut -hls_segment_type fmp4 -strftime 1 -hls_fmp4_init_filename "%s_init.mp4" out.m3u8
+@end example
+This will produce init like this
+@file{1602678741_init.mp4}
+
+@item hls_fmp4_init_resend
+Resend init file after m3u8 file refresh every time, default is @var{0}.
+
When @code{var_stream_map} is set with two or more variant streams, the
@var{filename} pattern must contain the string "%v", this string specifies
the position of variant stream index in the generated init file names.
By default, a single hls variant containing all the encoded streams is created.
+@example
+ffmpeg -y -i input_with_subtitle.mkv \
+ -b:v:0 5250k -c:v h264 -pix_fmt yuv420p -profile:v main -level 4.1 \
+ -b:a:0 256k \
+ -c:s webvtt -c:a mp2 -ar 48000 -ac 2 -map 0:v -map 0:a:0 -map 0:s:0 \
+ -f hls -var_stream_map "v:0,a:0,s:0,sgroup:subtitle" \
+ -master_pl_name master.m3u8 -t 300 -hls_time 10 -hls_init_time 4 -hls_list_size \
+ 10 -master_pl_publish_rate 10 -hls_flags \
+ delete_segments+discont_start+split_by_time ./tmp/video.m3u8
+@end example
+
+This example adds @code{#EXT-X-MEDIA} tag with @code{TYPE=SUBTITLES} in
+the master playlist with webvtt subtitle group name 'subtitle'. Please make sure
+the input file has one text subtitle stream at least.
+
@item cc_stream_map
Map string which specifies different closed captions groups and their
attributes. The closed captions stream groups are separated by space.
@table @option
@item title
-Set title name provided to a single track.
+Set title name provided to a single track. This gets mapped to
+the FileDescription element for a stream written as attachment.
@item language
Specify the language of the track in the Matroska languages form.
If this option is set to a non-zero value, the muxer will reserve a given amount
of space in the file header and then try to write the cues there when the muxing
-finishes. If the available space does not suffice, muxing will fail. A safe size
-for most use cases should be about 50kB per hour of video.
+finishes. If the reserved space does not suffice, no Cues will be written, the
+file will be finalized and writing the trailer will return an error.
+A safe size for most use cases should be about 50kB per hour of video.
Note that cues are only written if the output is seekable and this option will
have no effect if it is not.
+@item default_mode
+This option controls how the FlagDefault of the output tracks will be set.
+It influences which tracks players should play by default. The default mode
+is @samp{infer}.
+@table @samp
+@item infer
+In this mode, for each type of track (audio, video or subtitle), if there is
+a track with disposition default of this type, then the first such track
+(i.e. the one with the lowest index) will be marked as default; if no such
+track exists, the first track of this type will be marked as default instead
+(if existing). This ensures that the default flag is set in a sensible way even
+if the input originated from containers that lack the concept of default tracks.
+@item infer_no_subs
+This mode is the same as infer except that if no subtitle track with
+disposition default exists, no subtitle track will be marked as default.
+@item passthrough
+In this mode the FlagDefault is set if and only if the AV_DISPOSITION_DEFAULT
+flag is set in the disposition of the corresponding stream.
+@end table
+
+@item flipped_raw_rgb
+If set to true, store positive height for raw RGB bitmaps, which indicates
+bitmap is stored bottom-up. Note that this option does not flip the bitmap
+which has to be done manually beforehand, e.g. by using the vflip filter.
+Default is @var{false} and indicates bitmap is stored top down.
+
@end table
@anchor{md5}
ffmpeg -re @var{<normal input/transcoding options>} -movflags isml+frag_keyframe -f ismv http://server/publishingpoint.isml/Streams(Encoder1)
@end example
-@subsection Audible AAX
-
-Audible AAX files are encrypted M4B files, and they can be decrypted by specifying a 4 byte activation secret.
-@example
-ffmpeg -activation_bytes 1CEB00DA -i test.aax -vn -c:a copy output.mp4
-@end example
-
@section mp3
The MP3 muxer writes a raw MP3 stream with the following optional features:
@item mpegts_pmt_start_pid @var{integer}
Set the first PID for PMTs. Default is @code{0x1000}, minimum is @code{0x0020},
-maximum is @code{0x1ffa}.
+maximum is @code{0x1ffa}. This option has no effect in m2ts mode where the PMT
+PID is fixed @code{0x0100}.
@item mpegts_start_pid @var{integer}
Set the first PID for elementary streams. Default is @code{0x0100}, minimum is
-@code{0x0020}, maximum is @code{0x1ffa}.
+@code{0x0020}, maximum is @code{0x1ffa}. This option has no effect in m2ts mode
+where the elementary stream PIDs are fixed.
@item mpegts_m2ts_mode @var{boolean}
Enable m2ts mode if set to @code{1}. Default value is @code{-1} which
@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 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 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
See also the @ref{hash} and @ref{framehash} muxers.
-@anchor{fifo}
-@section fifo
-
-The fifo pseudo-muxer allows the separation of encoding and muxing by using
-first-in-first-out queue and running the actual muxer in a separate thread. This
-is especially useful in combination with the @ref{tee} muxer and can be used to
-send data to several destinations with different reliability/writing speed/latency.
-
-API users should be aware that callback functions (interrupt_callback,
-io_open and io_close) used within its AVFormatContext must be thread-safe.
-
-The behavior of the fifo muxer if the queue fills up or if the output fails is
-selectable,
-
-@itemize @bullet
-
-@item
-output can be transparently restarted with configurable delay between retries
-based on real time or time of the processed stream.
-
-@item
-encoding can be blocked during temporary failure, or continue transparently
-dropping packets in case fifo queue fills up.
-
-@end itemize
-
-@table @option
-
-@item fifo_format
-Specify the format name. Useful if it cannot be guessed from the
-output name suffix.
-
-@item queue_size
-Specify size of the queue (number of packets). Default value is 60.
-
-@item format_opts
-Specify format options for the underlying muxer. Muxer options can be specified
-as a list of @var{key}=@var{value} pairs separated by ':'.
-
-@item drop_pkts_on_overflow @var{bool}
-If set to 1 (true), in case the fifo queue fills up, packets will be dropped
-rather than blocking the encoder. This makes it possible to continue streaming without
-delaying the input, at the cost of omitting part of the stream. By default
-this option is set to 0 (false), so in such cases the encoder will be blocked
-until the muxer processes some of the packets and none of them is lost.
-
-@item attempt_recovery @var{bool}
-If failure occurs, attempt to recover the output. This is especially useful
-when used with network output, since it makes it possible to restart streaming transparently.
-By default this option is set to 0 (false).
-
-@item max_recovery_attempts
-Sets maximum number of successive unsuccessful recovery attempts after which
-the output fails permanently. By default this option is set to 0 (unlimited).
-
-@item recovery_wait_time @var{duration}
-Waiting time before the next recovery attempt after previous unsuccessful
-recovery attempt. Default value is 5 seconds.
-
-@item recovery_wait_streamtime @var{bool}
-If set to 0 (false), the real time is used when waiting for the recovery
-attempt (i.e. the recovery will be attempted after at least
-recovery_wait_time seconds).
-If set to 1 (true), the time of the processed stream is taken into account
-instead (i.e. the recovery will be attempted after at least @var{recovery_wait_time}
-seconds of the stream is omitted).
-By default, this option is set to 0 (false).
-
-@item recover_any_error @var{bool}
-If set to 1 (true), recovery will be attempted regardless of type of the error
-causing the failure. By default this option is set to 0 (false) and in case of
-certain (usually permanent) errors the recovery is not attempted even when
-@var{attempt_recovery} is set to 1.
-
-@item restart_with_keyframe @var{bool}
-Specify whether to wait for the keyframe after recovering from
-queue overflow or failure. This option is set to 0 (false) by default.
-
-@end table
-
-@subsection Examples
-
-@itemize
-
-@item
-Stream something to rtmp server, continue processing the stream at real-time
-rate even in case of temporary failure (network outage) and attempt to recover
-streaming every second indefinitely.
-@example
-ffmpeg -re -i ... -c:v libx264 -c:a aac -f fifo -fifo_format flv -map 0:v -map 0:a
- -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 1 rtmp://example.com/live/stream_name
-@end example
-
-@end itemize
-
@anchor{tee}
@section tee
@end example
@end itemize
+@section webm_chunk
+
+WebM Live Chunk Muxer.
+
+This muxer writes out WebM headers and chunks as separate files which can be
+consumed by clients that support WebM Live streams via DASH.
+
+@subsection Options
+
+This muxer supports the following options:
+
+@table @option
+@item chunk_start_index
+Index of the first chunk (defaults to 0).
+
+@item header
+Filename of the header where the initialization data will be written.
+
+@item audio_chunk_duration
+Duration of each audio chunk in milliseconds (defaults to 5000).
+@end table
+
+@subsection Example
+@example
+ffmpeg -f v4l2 -i /dev/video0 \
+ -f alsa -i hw:0 \
+ -map 0:0 \
+ -c:v libvpx-vp9 \
+ -s 640x360 -keyint_min 30 -g 30 \
+ -f webm_chunk \
+ -header webm_live_video_360.hdr \
+ -chunk_start_index 1 \
+ webm_live_video_360_%d.chk \
+ -map 1:0 \
+ -c:a libvorbis \
+ -b:a 128k \
+ -f webm_chunk \
+ -header webm_live_audio_128.hdr \
+ -chunk_start_index 1 \
+ -audio_chunk_duration 1000 \
+ webm_live_audio_128_%d.chk
+@end example
+
@section webm_dash_manifest
WebM DASH Manifest muxer.
manifest.xml
@end example
-@section webm_chunk
-
-WebM Live Chunk Muxer.
-
-This muxer writes out WebM headers and chunks as separate files which can be
-consumed by clients that support WebM Live streams via DASH.
-
-@subsection Options
-
-This muxer supports the following options:
-
-@table @option
-@item chunk_start_index
-Index of the first chunk (defaults to 0).
-
-@item header
-Filename of the header where the initialization data will be written.
-
-@item audio_chunk_duration
-Duration of each audio chunk in milliseconds (defaults to 5000).
-@end table
-
-@subsection Example
-@example
-ffmpeg -f v4l2 -i /dev/video0 \
- -f alsa -i hw:0 \
- -map 0:0 \
- -c:v libvpx-vp9 \
- -s 640x360 -keyint_min 30 -g 30 \
- -f webm_chunk \
- -header webm_live_video_360.hdr \
- -chunk_start_index 1 \
- webm_live_video_360_%d.chk \
- -map 1:0 \
- -c:a libvorbis \
- -b:a 128k \
- -f webm_chunk \
- -header webm_live_audio_128.hdr \
- -chunk_start_index 1 \
- -audio_chunk_duration 1000 \
- webm_live_audio_128_%d.chk
-@end example
-
@c man end MUXERS
projects / ffmpeg / blobdiff