[FFmpeg-trac] #3749(avformat:new): segment with segment_time_delta cause the first file empty.
FFmpeg
trac at avcodec.org
Sun Jun 29 18:32:24 CEST 2014
#3749: segment with segment_time_delta cause the first file empty.
-------------------------------------+-------------------------------------
Reporter: qrtt1 | Type: defect
Status: new | Priority: normal
Component: avformat | Version: git-
Keywords: hls segment | master
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Summary of the bug:
I try to make hls segment with the segment_time_delta parameter,
and found the size of 1st file is always 0.
How to reproduce:
{{{
% qty:Downloads qrtt1$ /Users/qrtt1/temp/FFmpeg/ffmpeg -i FOOO.ts -codec
copy -map 0 -f segment -segment_list_type m3u8 -segment_time_delta 11
-segment_list foo.mp4.m3u8 foo.mp4%05d.ts
ffmpeg version N-64303-g3f42434 Copyright (c) 2000-2014 the FFmpeg
developers
built on Jun 29 2014 23:10:40 with Apple LLVM version 5.1
(clang-503.0.40) (based on LLVM 3.4svn)
configuration: --prefix=/Users/qrtt1/temp/FFmpeg/OUT
libavutil 52. 90.101 / 52. 90.101
libavcodec 55. 68.100 / 55. 68.100
libavformat 55. 44.100 / 55. 44.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 9.100 / 4. 9.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
[h264 @ 0x7fca1a008000] non-existing SPS 0 referenced in buffering period
Last message repeated 1 times
Input #0, mpegts, from 'FOOO.ts':
Duration: 00:01:16.08, start: 1.400000, bitrate: 6620 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k
tbn, 59.94 tbc
Stream #0:1[0x101](jan): Audio: aac ([15][0][0][0] / 0x000F), 48000
Hz, stereo, fltp, 129 kb/s
[segment @ 0x7fca1a029800] Using AVStream.codec.time_base as a timebase
hint to the muxer is deprecated. Set AVStream.time_base instead.
Last message repeated 1 times
[mpegts @ 0x7fca1a02b600] Using AVStream.codec.time_base as a timebase
hint to the muxer is deprecated. Set AVStream.time_base instead.
Last message repeated 1 times
Output #0, segment, to 'foo.mp4%05d.ts':
Metadata:
encoder : Lavf55.44.100
Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 1280x720
[SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbn, 29.97 tbc
Stream #0:1(jan): Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz,
stereo, 129 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[NULL @ 0x7fca1a008000] non-existing SPS 0 referenced in buffering period
[mpegts @ 0x7fca1a02b600] Using AVStream.codec.time_base as a timebase
hint to the muxer is deprecated. Set AVStream.time_base instead.
Last message repeated 5 times
}}}
{{{
qty:Downloads qrtt1$ ls -alh|grep foo|head
-rw-r--r-- 1 qrtt1 staff 1.6K 6 30 00:29 foo.mp4.m3u8
-rw-r--r-- 1 qrtt1 staff 0B 6 30 00:29 foo.mp400000.ts
-rw-r--r-- 1 qrtt1 staff 30K 6 30 00:29 foo.mp400001.ts
-rw-r--r-- 1 qrtt1 staff 99K 6 30 00:29 foo.mp400002.ts
-rw-r--r-- 1 qrtt1 staff 60K 6 30 00:29 foo.mp400003.ts
-rw-r--r-- 1 qrtt1 staff 689K 6 30 00:29 foo.mp400004.ts
-rw-r--r-- 1 qrtt1 staff 595K 6 30 00:29 foo.mp400005.ts
-rw-r--r-- 1 qrtt1 staff 500K 6 30 00:29 foo.mp400006.ts
-rw-r--r-- 1 qrtt1 staff 1.5M 6 30 00:29 foo.mp400007.ts
-rw-r--r-- 1 qrtt1 staff 2.6M 6 30 00:29 foo.mp400008.ts
}}}
The file foo.mp400000.ts with duration 0, it will cause play failure:
{{{
qty:Downloads qrtt1$ head -10 foo.mp4.m3u8
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-ALLOW-CACHE:YES
#EXT-X-TARGETDURATION:3
#EXTINF:0.000000,
foo.mp400000.ts
#EXTINF:0.066733,
foo.mp400001.ts
#EXTINF:0.200200,
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3749>
FFmpeg <https://ffmpeg.org>
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