HTTP redirect 307 of an specified HLS url is not stored after HTTP connexion

[Sidney N'Guessan]

If there is a HTTP redirect 307 on a specified url, the redirect is followed during the http connexion but is not stored.

In my compagny, TV streaming is done through HLS and load balancing. For a channel, the stream URL is forward to a temporary redirect.

Ex:
wget ​http://our-server/CH1/CH1.m3u8
--2013-06-25 16:00:59-- ​http://our-server/CH1/CH1.m3u8
Connecting to our-server:80... connected.
HTTP request sent, awaiting response... 307 Temporary Redirect
Location: ​http://our-server:80/CH1/kac3trwi5qcqy5iiartgtbfizjqet2ii/0000150/GlobalHlsManifest.m3u8 [following]
--2013-06-25 16:00:59-- ​http://our-server/CH1/kac3trwi5qcqy5iiartgtbfizjqet2ii/0000150/GlobalHlsManifest.m3u8
Connecting to our-server:80... connected.
HTTP request sent, awaiting response... 200 OK

In our case, ffplay does not play the m3u8 because the URL sent to the HLS stack is the same as give in parameter but not the real URL (redirected) and the result is 404.

/usr/bin/ffplay ​http://our-server/CH1/CH1.m3u8
avplay version 0.8.5-4:0.8.5-0ubuntu0.12.04.1, Copyright (c) 2003-2012 the Libav developers

built on Jan 24 2013 18:01:36 with gcc 4.6.3

[http @ 0x7f702c0043c0] HTTP error 404 Not Found
​http://our-server/CH1/CH1.m3u8: Input/output error

I have fix this bug in the patch.

Sidney.

[Sidney N'Guessan]

Patch to follow HTTP redirect 307 on a specified URL

[Carl Eugen Hoyos]

Please test current git head from ​http://ffmpeg.org/download.html and please add a failing command line together with complete, uncut console output.

And please consider reading ​http://blog.pkh.me/p/13-the-ffmpeg-libav-situation.html to learn more about one (of several) FFmpeg forks that you originally tested.

[bbcallen]

Here is a HLS url with the similar problem, which you can test against
​http://gslb.tv.sohu.com/live?cid=12&type=hls

[Carl Eugen Hoyos]

wget confirms that this is a problem about ignored redirect.

$ ffmpeg -loglevel 99 -i "http://gslb.tv.sohu.com/live?cid=12&type=hls"
ffmpeg version N-54477-g8fdec02 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jul  5 2013 13:00:03 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --disable-indev=jack
  libavutil      52. 38.100 / 52. 38.100
  libavcodec     55. 18.101 / 55. 18.101
  libavformat    55. 11.100 / 55. 11.100
  libavdevice    55.  2.100 / 55.  2.100
  libavfilter     3. 78.100 /  3. 78.100
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-i' ... matched as input file with argument 'http://gslb.tv.sohu.com/live?cid=12&type=hls'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument 99.
Successfully parsed a group of options.
Parsing a group of options: input file http://gslb.tv.sohu.com/live?cid=12&type=hls.
Successfully parsed a group of options.
Opening an input file: http://gslb.tv.sohu.com/live?cid=12&type=hls.
[hls,applehttp @ 0x2ee4020] Format hls,applehttp probed with size=2048 and score=100
[http @ 0x2ef0520] HTTP error 404 Not Found
[hls,applehttp @ 0x2ee4020] Error when loading first segment 'http://gslb.tv.sohu.com/hls/12.ts?s=hWExFxqmZ8eE'
[AVIOContext @ 0x2ee8fe0] Statistics: 704 bytes read, 0 seeks
http://gslb.tv.sohu.com/live?cid=12&type=hls: Input/output error

[Sidney N'Guessan]

Same problem with this URL "​http://gslb.tv.sohu.com/live?cid=12&type=hls"

-- With orig libavformat of my distrib --

$ /usr/bin/ffplay "​http://gslb.tv.sohu.com/live?cid=12&type=hls"
avplay version 0.8.5-4:0.8.5-0ubuntu0.12.04.1, Copyright (c) 2003-2012 the Libav developers

built on Jan 24 2013 18:01:36 with gcc 4.6.3

[http @ 0x7f97d000de20] HTTP error 404 Not Found
​http://gslb.tv.sohu.com/live?cid=12&type=hls: Input/output error

-- With patched libavformat (chromium fork) --

/usr/local/bin/ffplay "http://gslb.tv.sohu.com/live?cid=12&type=hls"                                                                                                                                  
ffplay version 1.0.git Copyright (c) 2003-2012 the FFmpeg developers
  built on Jun  5 2013 18:40:50 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  configuration: --enable-avdevice --enable-avfilter --enable-fft --enable-rdft --enable-shared --disable-dxva2 --disable-vaapi --disable-vda --disable-vdpau --optflags=-O2 --enable-decoder='theora,vorbis,vp8' --enable-decoder='pcm_u8,pcm_s16le,pcm_s24le,pcm_f32le' --enable-decoder='pcm_s16be,pcm_s24be' --enable-demuxer='ogg,matroska,wav' --enable-parser='vp3,vorbis,vp8' --enable-pic --enable-decoder='aac,h264,mp3,flac,mpeg4,amrnb,amrwb,pcm_mulaw,gsm_ms' --enable-demuxer='mp3,mov,flac,avi,amr,gsm' --enable-parser='aac,h264,mpegaudio,flac,h263,mpeg4video,gsm'
  libavutil      52. 11.101 / 52. 11.101
  libavcodec     54. 78.101 / 54. 78.101
  libavformat    54. 42.100 / 54. 42.100
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 23.105 /  3. 23.105
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
[mpegts @ 0x7fb58c010e40] Estimating duration from bitrate, this may be inaccurate
[hls,applehttp @ 0x7fb58c0008c0] Estimating duration from bitrate, this may be inaccurate
Input #0, hls,applehttp, from 'http://gslb.tv.sohu.com/live?cid=12&type=hls':
  Duration: 00:00:00.17, start: 11736.040178, bitrate: 33 kb/s
  Program 0 
    Metadata:
      variant_bitrate : 0
    Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 12.50 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 32000 Hz, mono, fltp, 34 kb/s
Frame changed from size:0x0 to size:640x480q=    5KB sq=    0B f=0/0   
11740.59 A-V: -0.007 fd=   6 aq=    5KB vq=    4KB sq=    0B f=0/0

[Carl Eugen Hoyos]

Replying to fripooy:

With patched libavformat

Please send the patch to the ffmpeg-devel mailing list, be careful not to break ABI

[Michael Niedermayer]

Not reproduceable with the public URL and ffmpeg git master
if this has been fixed, please close the ticket
thanks

[Carl Eugen Hoyos]

Fixed by Martin Storsjö since 9440e470 / 8c929098