Re: [Mlt-devel] [PATCH] fix playing audio with 0 channels
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Re: [Mlt-devel] [PATCH] fix playing audio with 0 channels
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From: Dan D. <da...@de...> - 2012-03-14 04:47:53
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thank you, Maksym, applied. 2012/3/12 Maksym Veremeyenko <ve...@m1...>: > Hi, > > here is a backtrace of SIGFPE happens if producer avformat faced with file > with 0 audio channels: > > Input #0, mpeg, from 'XDCAM': > Duration: 00:00:06.52, start: 1.000000, bitrate: 50619 kb/s > Stream #0:0[0x1e0]: Video: mpeg2video (4:2:2), yuv422p, 1920x1080 [SAR > 1:1 DAR 16:9], 50000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc > Stream #0:1[0x1c0]: Audio: mp2, 0 channels, s16 > ^^^^^ > > ./melt -profile dv_pal -producer avformat:/home/XDCAM -consumer decklink:0 > > +---------------------------------------------------------------------+ > | H = back 1 minute, L = forward 1 minute | > | h = previous frame, l = next frame | > | g = start of clip, j = next clip, k = previous clip | > | 0 = restart, q = quit, space = play | > +---------------------------------------------------------------------+ > [New Thread 0x7fffd5c2a700 (LWP 11678)] > [mpeg @ 0x7fffc80022a0] Format mpeg detected only with low score of 25, > misdetection possible! > [mpeg @ 0x7fffc80022a0] Could not find codec parameters (Audio: mp2, 0 > channels, s16) > [NULL @ 0x7fffc800a020] start time is not set in estimate_timings_from_pts > [mpeg @ 0x7fffc8008ca0] Format mpeg detected only with low score of 25, > misdetection possible! > [mpeg @ 0x7fffc8008ca0] Could not find codec parameters (Audio: mp2, 0 > channels, s16) > [NULL @ 0x7fffc811a100] start time is not set in estimate_timings_from_pts > [mpeg @ 0x7fffc811a560] Format mpeg detected only with low score of 25, > misdetection possible! > [mpeg @ 0x7fffc811a560] Could not find codec parameters (Audio: mp2, 0 > channels, s16) > [NULL @ 0x7fffc8121cc0] start time is not set in estimate_timings_from_pts > [New Thread 0x7fffd5429700 (LWP 11679)] > [New Thread 0x7fffd4c28700 (LWP 11680)] > [New Thread 0x7fffcffff700 (LWP 11681)] > [New Thread 0x7fffcf7fe700 (LWP 11682)] > [New Thread 0x7fffceffd700 (LWP 11683)] > Unsupported audio resampling. Allowed output channels for 0 input channel: > [filter resample] SRC ratio outside [1/256, 256] range. 0,0,48000 > Current Position: 0 > Program received signal SIGFPE, Arithmetic exception. > [Switching to Thread 0x7fffd5c2a700 (LWP 11678)] > 0x00007ffff0085056 in producer_get_audio (frame=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29bcc, samples=0x7fffd5c29eac) at > producer_avformat.c:2379 > 2379 *samples = *samples * self->audio_codec[ > self->audio_index ]->sample_rate / *frequency; > Missing separate debuginfos, use: debuginfo-install > SDL-1.2.14-13.fc16.x86_64 alsa-lib-1.0.24-2.fc15.x86_64 > cairo-1.10.2-4.fc16.x86_64 celt-0.11.1-2.fc16.x86_64 > expat-2.0.1-11.fc15.x86_64 fontconfig-2.8.0-4.fc16.x86_64 > freetype-2.4.6-4.fc16.x86_64 gdk-pixbuf2-2.24.1-1.fc16.x86_64 > glib2-2.30.2-1.fc16.x86_64 glibc-2.14.90-24.fc16.4.x86_64 > gtk2-2.24.8-3.fc16.x86_64 jack-audio-connection-kit-1.9.8-3.fc16.x86_64 > ladspa-1.13-7.fc15.x86_64 libICE-1.0.7-1.fc16.x86_64 > libSM-1.2.0-2.fc15.x86_64 libX11-1.4.3-1.fc16.x86_64 > libXau-1.0.6-2.fc15.x86_64 libXcomposite-0.4.3-2.fc15.x86_64 > libXcursor-1.1.11-3.fc15.x86_64 libXdamage-1.1.3-2.fc15.x86_64 > libXext-1.3.0-1.fc16.x86_64 libXfixes-5.0-1.fc16.x86_64 > libXi-1.4.5-1.fc16.x86_64 libXinerama-1.1.1-2.fc15.x86_64 > libXrandr-1.3.1-2.fc15.x86_64 libXrender-0.9.6-2.fc15.x86_64 > libexif-0.6.20-1.fc16.x86_64 libffi-3.0.10-1.fc16.x86_64 > libgcc-4.6.2-1.fc16.x86_64 libogg-1.2.2-3.fc15.x86_64 > libpng-1.2.46-1.fc16.x86_64 libsamplerate-0.1.8-1.fc16.x86_64 > libselinux-2.1.5-5.1.fc16.x86_64 libstdc++-4.6.2-1.fc16.x86_64 > libtheora-1.1.1-1.fc15.x86_64 libuuid-2.20.1-2.fc16.x86_64 > libvorbis-1.3.2-1.fc15.x86_64 libxcb-1.7-3.fc16.x86_64 > libxml2-2.7.8-6.fc16.x86_64 pango-1.29.4-1.fc16.x86_64 > pixman-0.22.2-1.fc16.x86_64 qt-4.8.0-7.fc16.x86_64 > qt-x11-4.8.0-7.fc16.x86_64 speex-1.2-0.13.rc1.fc15.x86_64 > zlib-1.2.5-6.fc16.x86_64 > (gdb) bt > #0 0x00007ffff0085056 in producer_get_audio (frame=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29bcc, samples=0x7fffd5c29eac) at > producer_avformat.c:2379 > #1 0x00007ffff7dca40d in mlt_frame_get_audio (self=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29bcc, samples=0x7fffd5c29eac) at > mlt_frame.c:666 > #2 0x00007fffec6e1c60 in filter_get_audio (frame=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, > frequency=<optimized out>, channels=0x7fffd5c29ea4, > samples=0x7fffd5c29eac) at filter_audiochannels.c:33 > #3 0x00007ffff7dca40d in mlt_frame_get_audio (self=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29ea4, samples=0x7fffd5c29eac) at > mlt_frame.c:666 > #4 0x00007fffea5c2fa3 in resample_get_audio (frame=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29ea4, samples=0x7fffd5c29eac) at > filter_resample.c:54 > #5 0x00007ffff7dca40d in mlt_frame_get_audio (self=0x7fffc81218a0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29ea4, samples=0x7fffd5c29eac) at > mlt_frame.c:666 > #6 0x00007ffff7ddbd50 in producer_get_audio (self=0x7fffc8000fd0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29ea4, samples=0x7fffd5c29eac) at > mlt_tractor.c:296 > #7 0x00007ffff7dca40d in mlt_frame_get_audio (self=0x7fffc8000fd0, > buffer=0x7fffd5c29e88, format=0x7fffd5c29ea0, frequency= > 0x7fffd5c29ea8, channels=0x7fffd5c29ea4, samples=0x7fffd5c29eac) at > mlt_frame.c:666 > #8 0x00007ffff7dd8d08 in consumer_read_ahead_thread (arg=0x60f2d8) at > mlt_consumer.c:783 > #9 0x0000003ec2607d90 in start_thread () from /lib64/libpthread.so.0 > #10 0x0000003ec22ef48d in clone () from /lib64/libc.so.6 > (gdb) print *samples > $1 = 0 > (gdb) print *frequency > $2 = 0 > (gdb) quit > > > -- > ________________________________________ > Maksym Veremeyenko -- +-DRD-+ |