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This demuxer presents all AVStreams found in the manifest.By setting the discard flags on AVStreams the caller can decidewhich streams to actually receive.Each stream mirrors the id and bandwidth properties from the as metadata keys named \"id\" and \"variant_bitrate\" respectively.
Set the number of unreferenced segments to keep on disk before hls_flags delete_segmentsdeletes them. Increase this to allow continue clients to download segments whichwere recently referenced in the playlist. Default value is 1, meaning segments older thanhls_list_size+1 will be deleted.
Start the playlist sequence number (#EXT-X-MEDIA-SEQUENCE) according to the specified source.Unless hls_flags single_file is set, it also specifies source of starting sequence numbers ofsegment and subtitle filenames. In any case, if hls_flags append_listis set and read playlist sequence number is greater than the specified start sequence number,then that value will be used as start value.
Start the playlist sequence number (#EXT-X-MEDIA-SEQUENCE) from the specified numberwhen hls_start_number_source value is generic. (This is the default case.)Unless hls_flags single_file is set, it also specifies starting sequence numbers of segment and subtitle filenames.Default value is 0.
Use the information in key_info_file for segment encryption. The firstline of key_info_file specifies the key URI written to the playlist. Thekey URL is used to access the encryption key during playback. The second linespecifies the path to the key file used to obtain the key during the encryptionprocess. The key file is read as a single packed array of 16 octets in binaryformat. The optional third line specifies the initialization vector (IV) as ahexadecimal string to be used instead of the segment sequence number (default)for encryption. Changes to key_info_file will result in segmentencryption with the new key/IV and an entry in the playlist for the new keyURI/IV if hls_flags periodic_rekey is enabled.
The mov/mp4/ismv muxer supports fragmentation. Normally, a MOV/MP4file has all the metadata about all packets stored in one location(written at the end of the file, it can be moved to the start forbetter playback by adding faststart to the movflags, orusing the qt-faststart tool). A fragmentedfile consists of a number of fragments, where packets and metadataabout these packets are stored together. Writing a fragmentedfile has the advantage that the file is decodable even if thewriting is interrupted (while a normal MOV/MP4 is undecodable ifit is not properly finished), and it requires less memory when writingvery long files (since writing normal MOV/MP4 files stores info aboutevery single packet in memory until the file is closed). The downsideis that it is less compatible with other applications. 59ce067264