DASH-templated name to used for the media segments. Default is "chunk-stream$RepresentationID$-$Number%05d$.m4s"
@item -utc_timing_url @var{utc_url}
URL of the page that will return the UTC timestamp in ISO format. Example: "https://time.akamai.com/?iso"
+@item -http_user_agent @var{user_agent}
+Override User-Agent field in HTTP header. Applicable only for HTTP output.
@item -adaptation_sets @var{adaptation_sets}
Assign streams to AdaptationSets. Syntax is "id=x,streams=a,b,c id=y,streams=d,e" with x and y being the IDs
of the adaptation sets and a,b,c,d and e are the indices of the mapped streams.
have the same name as the playlist, followed by a sequential number and a
.ts extension.
+Make sure to require a closed GOP when encoding and to set the GOP
+size to fit your segment time constraint.
+
For example, to convert an input file with @command{ffmpeg}:
@example
-ffmpeg -i in.nut out.m3u8
+ffmpeg -i in.mkv -c:v h264 -flags +cgop -g 30 -hls_time 1 out.m3u8
@end example
This example will produce the playlist, @file{out.m3u8}, and segment files:
@file{out0.ts}, @file{out1.ts}, @file{out2.ts}, etc.
detect updates to the encryption info. Be sure to replace this file atomically,
including the file containing the AES encryption key.
+@item independent_segments
+Add the @code{#EXT-X-INDEPENDENT-SEGMENTS} to playlists that has video segments
+and when all the segments of that playlist are guaranteed to start with a Key frame.
+
@item split_by_time
Allow segments to start on frames other than keyframes. This improves
behavior on some players when the time between keyframes is inconsistent,
@item http_user_agent
Override User-Agent field in HTTP header. Applicable only for HTTP output.
+@item var_stream_map
+Map string which specifies how to group the audio, video and subtitle streams
+into different variant streams. The variant stream groups are separated
+by space.
+Expected string format is like this "a:0,v:0 a:1,v:1 ....". Here a:, v:, s: are
+the keys to specify audio, video and subtitle streams respectively.
+Allowed values are 0 to 9 (limited just based on practical usage).
+
+@example
+ffmpeg -re -i in.ts -b:v:0 1000k -b:v:1 256k -b:a:0 64k -b:a:1 32k \
+ -map 0:v -map 0:a -map 0:v -map 0:a -f hls -var_stream_map "v:0,a:0 v:1,a:1" \
+ http://example.com/live/out.m3u8
+@end example
+This example creates two hls variant streams. The first variant stream will
+contain video stream of bitrate 1000k and audio stream of bitrate 64k and the
+second variant stream will contain video stream of bitrate 256k and audio
+stream of bitrate 32k. Here, two media playlist with file names out_1.m3u8 and
+out_2.m3u8 will be created.
+@example
+ffmpeg -re -i in.ts -b:v:0 1000k -b:v:1 256k -b:a:0 64k \
+ -map 0:v -map 0:a -map 0:v -f hls -var_stream_map "v:0 a:0 v:1" \
+ http://example.com/live/out.m3u8
+@end example
+This example creates three hls variant streams. The first variant stream will
+be a video only stream with video bitrate 1000k, the second variant stream will
+be an audio only stream with bitrate 64k and the third variant stream will be a
+video only stream with bitrate 256k. Here, three media playlist with file names
+out_1.m3u8, out_2.m3u8 and out_3.m3u8 will be created.
+
+By default, a single hls variant containing all the encoded streams is created.
+
+@item master_pl_name
+Create HLS master playlist with the given name.
+
+@example
+ffmpeg -re -i in.ts -f hls -master_pl_name master.m3u8 http://example.com/live/out.m3u8
+@end example
+This example creates HLS master playlist with name master.m3u8 and it is
+published at http://example.com/live/
+
+@item master_pl_publish_rate
+Publish master play list repeatedly every after specified number of segment intervals.
+
+@example
+ffmpeg -re -i in.ts -f hls -master_pl_name master.m3u8 \
+-hls_time 2 -master_pl_publish_rate 30 http://example.com/live/out.m3u8
+@end example
+
+This example creates HLS master playlist with name master.m3u8 and keep
+publishing it repeatedly every after 30 segments i.e. every after 60s.
+
@end table
@anchor{ico}
ffmpeg -f v4l2 -r 1 -i /dev/video0 -f image2 -strftime 1 "%Y-%m-%d_%H-%M-%S.jpg"
@end example
+You can set the file name with current frame's PTS:
+@example
+ffmpeg -f v4l2 -r 1 -i /dev/video0 -copyts -f image2 -frame_pts true %d.jpg"
+@end example
+
@subsection Options
@table @option
+@item frame_pts
+If set to 1, expand the filename with pts from pkt->pts.
+Default value is 0.
+
@item start_number
Start the sequence from the specified number. Default value is 1.
packet written. Defaults to @code{0}.
@end table
+Make sure to require a closed GOP when encoding and to set the GOP
+size to fit your segment time constraint.
+
@subsection Examples
@itemize
@file{out-000.nut}, @file{out-001.nut}, etc., and write the list of
generated segments to @file{out.list}:
@example
-ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nut
+ffmpeg -i in.mkv -codec hevc -flags +cgop -g 60 -map 0 -f segment -segment_list out.list out%03d.nut
@end example
@item
projects / ffmpeg / blobdiff