Opened 15 months ago

#10597 new enhancement

No way to recover from a failed download in m3u8 file

Reported by: steinrr Owned by:
Priority: normal Component: ffmpeg
Version: unspecified Keywords:
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug:

I am downloading .ts streams from a m3u8 playlist file to combine in one mkv video. Sometimes the first .ts file in playlist is not able to download properly, and I am forced to abort (using xerror parameter). I then need to manually try again and hope for the best.

I would like a command line parameter to ffmpeg, so it will retry failed downloads from within m3u8 files if any of the files fails.

There are currently no options to ffmpeg that will do this, and you have to retry the whole m3u8 playlist.

This is typically the output in report when this happens:


Press [q] to stop, ? for help
frame= 0 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s speed=N/A
[https @ 000001f107be2700] Stream ends prematurely at 2097152, should be 4743992
[https @ 000001f107bf3940] Opening 'https://anood37-httpcache0-47115-cacheod0.dna.ip-only.net/47115-cacheod1/1811037/0/hls/ouha42000702/2117993848-1341166632-1800000.ts?version_hash=b206a2f1' for reading
[hls @ 000001f10779d800] Opening 'https://anood37-httpcache0-47115-cacheod0.dna.ip-only.net/47115-cacheod1/1811037/0/hls/ouha42000702/2117993848-1341166632-1800000.ts?version_hash=b206a2f1' for reading
[mpegts @ 000001f107be2440] Packet corrupt (stream = 0, dts = 360000).
[hls @ 000001f10779d800] Packet corrupt (stream = 0, dts = 358200).
https://anood37-httpcache0-47115-cacheod0.dna.ip-only.net/47115-cacheod1/1811037/0/hls/ouha42000702/2117993848-1341166632-prog_index.m3u8?version_hash=b206a2f1: corrupt input packet in stream 0
https://anood37-httpcache0-47115-cacheod0.dna.ip-only.net/47115-cacheod1/1811037/0/hls/ouha42000702/2117993848-1341166632-prog_index.m3u8?version_hash=b206a2f1: Invalid data found when processing input
Conversion failed!


How to reproduce:

Run similar command:
ffmpeg -y -i https://exampleonly.com/myfiles.m3u8 -c copy /tmp/test.mkv

The m3u8 file typically has such entries:

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-TARGETDURATION:10
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:10.000000,
104482862-732449232-0.ts?version_hash=c77e8452
#EXTINF:10.000000,
104482862-732449232-900000.ts?version_hash=c77e8452
#EXTINF:10.000000,
104482862-732449232-1800000.ts?version_hash=c77e8452
#EXTINF:10.000000,
104482862-732449232-2700000.ts?version_hash=c77e8452
#EXTINF:10.000000,
104482862-732449232-3600000.ts?version_hash=c77e8452
#EXTINF:10.000000,
104482862-732449232-4500000.ts?version_hash=c77e8452

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