[FFmpeg-trac] #2409(undetermined:new): ffmpeg hangs while trying to play live FLV stream with Speex

FFmpeg trac at avcodec.org
Fri Mar 29 11:04:30 CET 2013

#2409: ffmpeg hangs while trying to play live FLV stream with Speex
             Reporter:  DrLex        |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  rtmp speex   |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by DrLex):

 This is a backtrace of where the ffmpeg from step 3 hangs:
 #0  0xb7fe2424 in __kernel_vsyscall ()
 #1  0xb7db93d1 in recv () at ../sysdeps/unix/sysv/linux/i386/socket.S:61
 #2  0xb7e1e3c5 in RTMPSockBuf_Fill () from /usr/lib/librtmp.so.0
 #3  0xb7e20458 in ?? () from /usr/lib/librtmp.so.0
 #4  0xb7e20530 in RTMP_ReadPacket () from /usr/lib/librtmp.so.0
 #5  0xb7e233d8 in RTMP_GetNextMediaPacket () from /usr/lib/librtmp.so.0
 #6  0xb7e234ab in ?? () from /usr/lib/librtmp.so.0
 #7  0xb7e23fe5 in RTMP_Read () from /usr/lib/librtmp.so.0
 #8  0x080dc533 in retry_transfer_wrapper (transfer_func=<optimized out>,
     size_min=<optimized out>, size=<optimized out>, buf=<optimized out>,
     h=<optimized out>) at libavformat/avio.c:274
 #9  ffurl_read (h=0x889a900, buf=0x88b8c24 "", size=1076)
     at libavformat/avio.c:307
 #10 0x080de398 in fill_buffer (s=0x88a88a0) at libavformat/aviobuf.c:425
 #11 0x080de4b7 in avio_r8 (s=0x88a88a0) at libavformat/aviobuf.c:471
 #12 0x080f5dbc in flv_read_packet (s=0x889a3e0, pkt=0xbfffe844)
     at libavformat/flvdec.c:656
 #13 0x081b478f in ff_read_packet (s=0x889a3e0, pkt=0xbfffe844)
     at libavformat/utils.c:787
 #14 0x081b75ae in read_frame_internal (s=0x889a3e0, pkt=0x889a3e0)
     at libavformat/utils.c:1432
 #15 0x081b8b0d in avformat_find_stream_info (ic=0x889a3e0,
     at libavformat/utils.c:2873
 #16 0x08076c3d in open_input_file (o=0xbfffee28,
     filename=0xbffff4a8 "rtmp:// live=1")
     at ffmpeg_opt.c:815
 #17 0x08073ba5 in open_files (l=<optimized out>, inout=<optimized out>,
     open_file=<optimized out>) at ffmpeg_opt.c:2470
 #18 0x08073ee0 in ffmpeg_parse_options (argc=12, argv=0xbffff2b4)
     at ffmpeg_opt.c:2507
 #19 0x08087aa0 in main (argc=12, argv=0xbffff2b4) at ffmpeg.c:3317

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2409#comment:6>
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