[FFmpeg-trac] #3814(undetermined:new): Apple HTTP / HLS audio stream sometimes glitches or stops playing altogether

[FFmpeg]

#3814: Apple HTTP / HLS audio stream sometimes glitches or stops playing
altogether
-------------------------------------+-------------------------------------
             Reporter:  iceman12c    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  Apple HTTP   |               Blocked By:
  HLS m3u8                           |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 With http://radio_ckis-lh.akamaihd.net/i/TOR925_1@176956/master.m3u8, and
 running ffplay, in about 50% of the runs it glitches (seems to be because
 it doesn't properly detect the embedded mjpeg stream #0:1). In other
 instances, it properly detects the mjpeg stream but the audio queue runs
 down to 0 and audio stops playing.

 Happens on both 2.3 release and master.

 How to reproduce:
 {{{
 GLITCH INSTANCE (notice no mjpeg #0:1 stream):

 $ ./ffplay "http://radio_ckis-
 lh.akamaihd.net/i/TOR925_1 at 176956/master.m3u8"
 ffplay version N-65064-gd554d00 Copyright (c) 2003-2014 the FFmpeg
 developers
   built on Jul 28 2014 09:51:23 with Apple LLVM version 5.1
 (clang-503.0.40) (based on LLVM 3.4svn)
   configuration:
   libavutil      52. 92.101 / 52. 92.101
   libavcodec     55. 71.100 / 55. 71.100
   libavformat    55. 49.100 / 55. 49.100
   libavdevice    55. 13.102 / 55. 13.102
   libavfilter     4. 11.102 /  4. 11.102
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
 [hls,applehttp @ 0x7fa73901ee00] Estimating duration from bitrate, this
 may be inaccurate
 Input #0, hls,applehttp, from 'http://radio_ckis-
 lh.akamaihd.net/i/TOR925_1 at 176956/master.m3u8':
   Duration: 00:00:00.03, start: 16048.711433, bitrate: 88 kb/s
   Program 0
     Metadata:
       variant_bitrate : 48000
     Stream #0:0: Audio: aac, 44100 Hz, stereo, fltp, 40 kb/s
     Metadata:
       variant_bitrate : 48000
   Program 1
     Metadata:
       variant_bitrate : 48000
     Stream #0:1: Audio: aac, 44100 Hz, stereo, fltp, 47 kb/s
     Metadata:
       variant_bitrate : 48000
 [hls,applehttp @ 0x7fa73901ee00] No longer receiving playlist 0
 16052.44 M-A:  0.000 fd=   0 aq=    2KB vq=    0KB sq=    0B f=0/0

 ====

 STOPS PLAYING INSTANCE (notice mjpeg detected but aq size is much higher
 than previous instance and eventually runs down to 0):

 $ ./ffplay "http://radio_ckis-
 lh.akamaihd.net/i/TOR925_1 at 176956/master.m3u8"
 ffplay version N-65064-gd554d00 Copyright (c) 2003-2014 the FFmpeg
 developers
   built on Jul 28 2014 09:51:23 with Apple LLVM version 5.1
 (clang-503.0.40) (based on LLVM 3.4svn)
   configuration:
   libavutil      52. 92.101 / 52. 92.101
   libavcodec     55. 71.100 / 55. 71.100
   libavformat    55. 49.100 / 55. 49.100
   libavdevice    55. 13.102 / 55. 13.102
   libavfilter     4. 11.102 /  4. 11.102
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
 [hls,applehttp @ 0x7f89b8814400] Estimating duration from bitrate, this
 may be inaccurate
 Input #0, hls,applehttp, from 'http://radio_ckis-
 lh.akamaihd.net/i/TOR925_1 at 176956/master.m3u8':
   Duration: 00:00:00.02, start: 16098.704433, bitrate: 106 kb/s
   Program 0
     Metadata:
       variant_bitrate : 48000
     Stream #0:0: Audio: aac, 44100 Hz, stereo, fltp, 47 kb/s
     Metadata:
       variant_bitrate : 48000
     Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg), 25x25 [SAR 1:1 DAR
 1:1], 90k tbr, 90k tbn, 90k tbc
     Metadata:
       variant_bitrate : 48000
   Program 1
     Metadata:
       variant_bitrate : 48000
     Stream #0:2: Audio: aac, 44100 Hz, stereo, fltp, 59 kb/s
     Metadata:
       variant_bitrate : 48000
     Stream #0:3: Video: mjpeg, yuvj420p(pc, bt470bg), 25x25 [SAR 1:1 DAR
 1:1], 90k tbr, 90k tbn, 90k tbc
     Metadata:
       variant_bitrate : 48000
 [hls,applehttp @ 0x7f89b8814400] No longer receiving playlist 1
 [swscaler @ 0x7f89ba044a00] deprecated pixel format used, make sure you
 did set range correctly
 16107.53 A-V:    nan fd=   0 aq=  176KB vq=    0KB sq=    0B f=0/0


 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3814>
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