#1494: Assertion fails when encoding wmav2
-------------------------------------+-------------------------------------
Reporter: grolschie | Owner:
Type: defect | Status: open
Priority: important | Component: avcodec
Version: git-master | Resolution:
Keywords: wma | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by cehoyos):
{{{
(gdb) b wmaenc.c:389
Breakpoint 1 at 0x8622106: file libavcodec/wmaenc.c, line 389.
(gdb) r -i input_stream.flv -ar 48k -vn -acodec wmav2 -f null -
Starting program: ffmpeg_g -i input_stream.flv -ar 48k -vn -acodec wmav2
-f null -
[Thread debugging using libthread_db enabled]
[New Thread 0xb77ea9c0 (LWP 2617)]
ffmpeg version N-42075-g7001eee Copyright (c) 2000-2012 the FFmpeg
developers
built on Jun 30 2012 21:05:39 with gcc 4.3.2
configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable-
libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame
--enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs
--enable-libfaac --enable-nonfree
libavutil 51. 63.100 / 51. 63.100
libavcodec 54. 31.100 / 54. 31.100
libavformat 54. 14.100 / 54. 14.100
libavdevice 54. 0.100 / 54. 0.100
libavfilter 3. 0.100 / 3. 0.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, flv, from 'input_stream.flv':
Metadata:
metadatacreator : Yet Another Metadata Injector for FLV - Version 1.4
hasKeyframes : true
hasVideo : true
hasAudio : true
hasMetadata : true
canSeekToEnd : true
datasize : 1978772
videosize : 1716367
audiosize : 254789
lasttimestamp : 30
lastkeyframetimestamp: 30
lastkeyframelocation: 1975246
encoder : Lavf54.11.100
Duration: 00:00:30.27, start: 0.000000, bitrate: 366 kb/s
Stream #0:0: Video: flv1, yuv420p, 450x360, 200 kb/s, 25 tbr, 1k tbn,
1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, stereo, s16, 64 kb/s
[graph 0 input from stream 0:1 @ 0x90c8000] tb:1/1000 samplefmt:s16
samplerate:22050 chlayout:0x3
[auto-inserted resampler 0 @ 0x9041f60] chl:stereo fmt:s16 r:22050Hz ->
chl:stereo fmt:s16 r:48000Hz
Output #0, null, to 'pipe:':
Metadata:
metadatacreator : Yet Another Metadata Injector for FLV - Version 1.4
hasKeyframes : true
hasVideo : true
hasAudio : true
hasMetadata : true
canSeekToEnd : true
datasize : 1978772
videosize : 1716367
audiosize : 254789
lasttimestamp : 30
lastkeyframetimestamp: 30
lastkeyframelocation: 1975246
encoder : Lavf54.14.100
Stream #0:0: Audio: wmav2, 48000 Hz, stereo, s16, 127 kb/s
Stream mapping:
Stream #0:1 -> #0:0 (mp3 -> wmav2)
Press [q] to stop, [?] for help
[Switching to Thread 0xb77ea9c0 (LWP 2617)]
Breakpoint 1, encode_superframe (avctx=0x9037fa0, avpkt=0xbffd209c,
frame=0x9059780,
got_packet_ptr=0xbffd21e0) at libavcodec/wmaenc.c:389
389 av_assert0(i>=0);
(gdb) print i
$2 = -14242
(gdb) bt
#0 encode_superframe (avctx=0x9037fa0, avpkt=0xbffd209c, frame=0x9059780,
got_packet_ptr=0xbffd21e0)
at libavcodec/wmaenc.c:389
#1 0x085a0490 in avcodec_encode_audio2 (avctx=0x9037fa0,
avpkt=0xbffd209c, frame=0x9059780,
got_packet_ptr=0xffff9bec) at libavcodec/utils.c:1128
#2 0x08057deb in poll_filters () at ffmpeg.c:1583
#3 0x0805b2e3 in main (argc=151224224, argv=0x0) at ffmpeg.c:3656
(gdb) disass $pc-128 $pc+8
Dump of assembler code from 0x8622086 to 0x862210e:
0x08622086 <encode_superframe+1782>: xchg %eax,%esp
0x08622087 <encode_superframe+1783>: add %eax,(%eax)
0x08622089 <encode_superframe+1785>: add %ch,(%ebx)
0x0862208b <encode_superframe+1787>: (bad)
0x0862208c <encode_superframe+1788>: nop
0x0862208d <encode_superframe+1789>: add %eax,(%eax)
0x0862208f <encode_superframe+1791>: add %cl,0x20c504(%ebp)
0x08622095 <encode_superframe+1797>: add %al,(%eax)
0x08622097 <encode_superframe+1799>: sub 0x18c(%edx),%eax
0x0862209d <encode_superframe+1805>: mov %eax,%edx
0x0862209f <encode_superframe+1807>: sar $0x1f,%edx
0x086220a2 <encode_superframe+1810>: shr $0x1d,%edx
0x086220a5 <encode_superframe+1813>: add %eax,%edx
0x086220a7 <encode_superframe+1815>: sar $0x3,%edx
0x086220aa <encode_superframe+1818>: sub 0x1b0(%ecx),%edx
0x086220b0 <encode_superframe+1824>: test %edx,%edx
0x086220b2 <encode_superframe+1826>: jg 0x86223b5
<encode_superframe+2597>
0x086220b8 <encode_superframe+1832>: cmp $0x80,%ebx
0x086220be <encode_superframe+1838>: jle 0x86222d0
<encode_superframe+2368>
0x086220c4 <encode_superframe+1844>: mov 0x3c(%esp),%ebx
0x086220c8 <encode_superframe+1848>: mov 0x194(%ebx),%edi
0x086220ce <encode_superframe+1854>: mov 0x18c(%ebx),%esi
0x086220d4 <encode_superframe+1860>: mov %edi,%eax
0x086220d6 <encode_superframe+1862>: sub 0x190(%ebx),%eax
0x086220dc <encode_superframe+1868>: lea 0x20(,%eax,8),%eax
0x086220e3 <encode_superframe+1875>: sub %esi,%eax
0x086220e5 <encode_superframe+1877>: test $0x7,%al
0x086220e7 <encode_superframe+1879>: jne 0x8622451
<encode_superframe+2753>
0x086220ed <encode_superframe+1885>: lea 0x7(%eax),%edx
0x086220f0 <encode_superframe+1888>: mov %edx,%eax
0x086220f2 <encode_superframe+1890>: sar $0x1f,%eax
0x086220f5 <encode_superframe+1893>: shr $0x1d,%eax
0x086220f8 <encode_superframe+1896>: lea (%eax,%edx,1),%edx
0x086220fb <encode_superframe+1899>: sar $0x3,%edx
0x086220fe <encode_superframe+1902>: neg %edx
0x08622100 <encode_superframe+1904>: add 0x1b0(%ebx),%edx
0x08622106 <encode_superframe+1910>: cmp $0x0,%edx
0x08622109 <encode_superframe+1913>: jl 0x862246b
<encode_superframe+2779>
End of assembler dump.
(gdb) info register
eax 0x0 0
ecx 0x905e4e0 151381216
edx 0xffffc85e -14242
ebx 0x905e4e0 151381216
esp 0xbffd1b30 0xbffd1b30
ebp 0x905e668 0x905e668
esi 0x20 32
edi 0x90e0c8c 151915660
eip 0x8622106 0x8622106 <encode_superframe+1910>
eflags 0x282 [ SF IF ]
cs 0x73 115
ss 0x7b 123
ds 0x7b 123
es 0x7b 123
fs 0x0 0
gs 0x33 51
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1494#comment:9>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
http://avcodec.org/mailman/listinfo/ffmpeg-trac
