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}
@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.
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{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}
@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.
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}.
-@item hls_fmp4_init_resend @var{filename}
+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
@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.
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}
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
projects / ffmpeg / blobdiff