[FFmpeg-devel] [PATCH] lavfi test pattern generator

Stefano Sabatini stefano.sabatini-lala at poste.it
Tue Jun 21 01:14:36 CEST 2011


On date Monday 2011-06-20 23:04:39 +0200, Michael Niedermayer encoded:
> On Sun, Jun 19, 2011 at 11:32:31PM +0200, Stefano Sabatini wrote:
> > On date Sunday 2011-06-19 04:37:07 +0200, Michael Niedermayer encoded:
> > > On Sat, Jun 18, 2011 at 03:46:24PM +0200, Stefano Sabatini wrote:
> > [...]
> > > > Bikeshed painting time, in case we need different test patterns
> > > > (e.g. for the test suite), it may be useful to choose a more
> > > > distinctive name. I'm attaching a sample output for your convenience.
> > > 
> > > there is
> > >    -vf mp=test
> > 
> > (Note: mp=test crashes here).
> 
> could you provide gdb output ?

(gdb) show args
Argument list to give program being debugged when it is started is "-i slow.flv -vf mp=test -y out.avi".
(gdb) bt
#0  0xb71ec537 in raise () from /lib/libc.so.6
#1  0xb71ef922 in abort () from /lib/libc.so.6
#2  0xb7222fbd in ?? () from /lib/libc.so.6
#3  0xb722d0ca in ?? () from /lib/libc.so.6
#4  0xb722e918 in ?? () from /lib/libc.so.6
#5  0xb7231a5d in free () from /lib/libc.so.6
#6  0x0856bc47 in av_free (ptr=0x8dce5f0) at libavutil/mem.c:152
#7  0x0806d537 in merge_ref (ret=0x8dcf070, a=0x8dcba20) at libavfilter/formats.c:39
#8  0x0806d69d in avfilter_merge_formats (a=0x8dcbed0, b=0x8dcba20) at libavfilter/formats.c:71
#9  0x0806c36f in query_formats (graph=0x8dcd320, log_ctx=0x0) at libavfilter/avfiltergraph.c:159
#10 0x0806c67c in ff_avfilter_graph_config_formats (graph=0x8dcd320, log_ctx=0x0) at libavfilter/avfiltergraph.c:229
#11 0x0806c6d4 in avfilter_graph_config (graphctx=0x8dcd320, log_ctx=0x0) at libavfilter/avfiltergraph.c:245
#12 0x0804fc60 in configure_video_filters (ist=0x8d64670, ost=0x8d5c360) at ffmpeg.c:431
#13 0x08056d44 in transcode (output_files=0x87e0ee0, nb_output_files=1, input_files=0x8d5c758, nb_input_files=1, stream_maps=0x0, nb_stream_maps=0) at ffmpeg.c:2331
#14 0x0805d366 in main (argc=7, argv=0xbffff714) at ffmpeg.c:4571
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