Control: reassign -1 libavcodec55,xbmc On Sun, Mar 9, 2014 at 12:23 PM, Bálint Réczey <[email protected]> wrote: > Source: libav > Version: 6:10~beta1-2 > Severity: important > > Hi, > > The problem has been originally reported at upstream [1] [2]. > XBMC should keep playing the corrupt stream since otherwise errors in > broadcast signals would make watching TV impossible. > Vanilla XBMC using its in embedded FFmpeg plays the file [3] attached > to the upstream bug report.
I've just tried to reproduce this with latest libav/master using this test case: $ valgrind .build_11_alpha1/local/bin/avconv -y -i /tmp/test.mkv -f rawvideo The provided sample is very broken with many corruptions. Nevertheless, the only valgrind error I can see is this: ==28236== Syscall param write(buf) points to uninitialised byte(s) ==28236== at 0x5FBB35D: ??? (syscall-template.S:81) ==28236== by 0x4A0D52: file_write (file.c:68) ==28236== by 0x48FB1D: ffurl_write (avio.c:240) ==28236== by 0x4907EB: avio_write (aviobuf.c:128) ==28236== by 0x509D33: ff_raw_write_packet (rawenc.c:28) ==28236== by 0x4EC25C: av_interleaved_write_frame (mux.c:427) ==28236== by 0x45C152: write_frame (avconv.c:374) ==28236== by 0x45C9BC: poll_filters (avconv.c:582) ==28236== by 0x44CA48: main (avconv.c:2425) ==28236== Address 0x8463ca2 is 21,506 bytes inside a block of size 32,768 alloc'd ==28236== at 0x4C2D110: memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==28236== by 0x4C2D227: posix_memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==28236== by 0xA2B93D: av_malloc (mem.c:81) ==28236== by 0x495F98: avio_open2 (aviobuf.c:690) ==28236== by 0x457C6E: open_output_file (avconv_opt.c:1610) ==28236== by 0x4599C6: avconv_parse_options (avconv_opt.c:2104) ==28236== by 0x44C678: main (avconv.c:2566) ==28236== ==28236== Syscall param write(buf) points to uninitialised byte(s) ==28236== at 0x5FBB35D: ??? (syscall-template.S:81) ==28236== by 0x4A0D52: file_write (file.c:68) ==28236== by 0x48FB1D: ffurl_write (avio.c:240) ==28236== by 0x490888: avio_flush (aviobuf.c:128) ==28236== by 0x4EC277: av_interleaved_write_frame (mux.c:430) ==28236== by 0x45C152: write_frame (avconv.c:374) ==28236== by 0x45C9BC: poll_filters (avconv.c:582) ==28236== by 0x44CA48: main (avconv.c:2425) ==28236== Address 0x845e8a2 is 2 bytes inside a block of size 32,768 alloc'd ==28236== at 0x4C2D110: memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==28236== by 0x4C2D227: posix_memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==28236== by 0xA2B93D: av_malloc (mem.c:81) ==28236== by 0x495F98: avio_open2 (aviobuf.c:690) ==28236== by 0x457C6E: open_output_file (avconv_opt.c:1610) ==28236== by 0x4599C6: avconv_parse_options (avconv_opt.c:2104) ==28236== by 0x44C678: main (avconv.c:2566) ==28236== To me, it seems that the decoder produced wrong data (which is bad as well), but I'm unable to see a crash in libavcodec itself. This is clearly something that needs to be looked at upstream. Would you mind filing a bug at http://bugzilla.libav.org yourself so that I don't need to act as a proxy? Thanks. Reinhard -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
