[FFmpeg-trac] #249(avfilter:open): Fix the filter remove-logo
FFmpeg
trac at avcodec.org
Fri May 27 15:47:37 CEST 2011
#249: Fix the filter remove-logo
------------------------+-----------------------
Reporter: pbasista | Owner: michael
Type: defect | Status: open
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: remove-logo | Blocked By:
Blocking: | Reproduced: 1
Analyzed: 0 |
------------------------+-----------------------
Changes (by cehoyos):
* priority: minor => normal
* type: enhancement => defect
Comment:
Could you start gdb again and post the version of gdb (gdb -v) and the
output of
{{{
(gdb) help disass
}}}
The issue is reproducible:
{{{
(gdb) r -i test.ts -an -vf mp=remove-logo:out0225.ppm out.avi
ffmpeg version git-N-30308-g041dbd3, Copyright (c) 2000-2011 the FFmpeg
developers
built on May 27 2011 15:42:14 with gcc 4.5.3
configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl --disable-
optimizations
libavutil 51. 2. 2 / 51. 2. 2
libavcodec 53. 6. 0 / 53. 6. 0
libavformat 53. 2. 0 / 53. 2. 0
libavdevice 53. 0. 0 / 53. 0. 0
libavfilter 2. 11. 0 / 2. 11. 0
libswscale 0. 14. 0 / 0. 14. 0
libpostproc 51. 2. 0 / 51. 2. 0
[mpeg2video @ 0x14820e0] mpeg_decode_postinit() failure
Last message repeated 1 times
[mpegts @ 0x147abc0] max_analyze_duration 5000000 reached at 5000000
[NULL @ 0x14a3e00] start time is not set in av_estimate_timings_from_pts
[NULL @ 0x14a7f00] start time is not set in av_estimate_timings_from_pts
[NULL @ 0x14a9f80] start time is not set in av_estimate_timings_from_pts
[NULL @ 0x14ac000] start time is not set in av_estimate_timings_from_pts
[NULL @ 0x14ae080] start time is not set in av_estimate_timings_from_pts
[NULL @ 0x14b0100] start time is not set in av_estimate_timings_from_pts
Input #0, mpegts, from 'test.ts':
Duration: 00:00:20.58, start: 73344.586911, bitrate: 4074 kb/s
Program 10101
Stream #0.0[0x3f2]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR
64:45 DAR 16:9], 4300 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0.1[0x3f3](ger): Audio: mp2, 48000 Hz, stereo, s16, 160 kb/s
(clean effects)
Stream #0.2[0x3f4](eng): Audio: mp2, 48000 Hz, stereo, s16, 160 kb/s
(clean effects)
Stream #0.3[0x3f5](ger): Audio: ac3, 48000 Hz, stereo, s16, 448 kb/s
(clean effects)
Stream #0.4[0x3f6]: Data: [6][0][0][0] / 0x0006
Stream #0.5[0x3f7](ger): Subtitle: [6][0][0][0] / 0x0006
Stream #0.6[0x1b63]: Data: [11][0][0][0] / 0x000B
Stream #0.7[0x1b64]: Data: [11][0][0][0] / 0x000B
Stream #0.8[0x1b6d]: Data: [12][0][0][0] / 0x000C
Stream #0.9[0x1b77]: Data: [11][0][0][0] / 0x000B
Stream #0.10[0x1bbd]: Data: [5][0][0][0] / 0x0005
Program 10102
Program 10120
Program 10122
File 'out.avi' already exists. Overwrite ? [y/N] y
[buffer @ 0x147dd20] w:720 h:576 pixfmt:yuv420p tb:1/1000000 sar:64/45
sws_param:
[mp @ 0x1521e00] This is a unholy filter, it will be purified by the
ffmpeg exorcist team
which will change its syntax from dark -vf mp to light -vf.
Thou shalst not make spells or scripts that depend on it
Program received signal SIGSEGV, Segmentation fault.
0x0000000000464296 in convert_mask_to_strength_mask (vf=0x1481140,
mask=0x148b310)
at libavfilter/libmpcodecs/vf_remove_logo.c:384
384 *(current_pixel - mask->width) >= current_pass)
(gdb) bt
#0 0x0000000000464296 in convert_mask_to_strength_mask (vf=0x1481140,
mask=0x148b310)
at libavfilter/libmpcodecs/vf_remove_logo.c:384
#1 0x00000000004655e1 in vf_open (vf=0x1481140, args=0x1521d6c
"out0225.ppm")
at libavfilter/libmpcodecs/vf_remove_logo.c:872
#2 0x000000000042c4bb in init (ctx=0x1521e00, args=0x1521d6c
"out0225.ppm", opaque=0x0)
at libavfilter/vf_mp.c:780
#3 0x0000000000420315 in avfilter_init_filter (filter=0x1521e00,
args=0x1521d60 "remove-logo:out0225.ppm", opaque=0x0) at
libavfilter/avfilter.c:712
#4 0x0000000000422bb0 in create_filter (filt_ctx=0x7fffffffcf88,
ctx=0x14aa5c0, index=0,
filt_name=0x1521ce0 "mp", args=0x1521d60 "remove-logo:out0225.ppm",
log_ctx=0x0)
at libavfilter/graphparser.c:130
#5 0x0000000000422c8d in parse_filter (filt_ctx=0x7fffffffcf88,
buf=0x7fffffffcf60, graph=0x14aa5c0,
index=0, log_ctx=0x0) at libavfilter/graphparser.c:165
#6 0x0000000000423290 in avfilter_graph_parse (graph=0x14aa5c0,
filters=0x14827fa "",
open_inputs=0x15223a0, open_outputs=0x14808e0, log_ctx=0x0) at
libavfilter/graphparser.c:347
#7 0x000000000040596a in configure_video_filters (ist=0x14817c0,
ost=0x147fde0) at ffmpeg.c:420
#8 0x000000000040c684 in transcode (output_files=0xf08380,
nb_output_files=1, input_files=0x1482580,
nb_input_files=1, stream_maps=0x0, nb_stream_maps=0) at ffmpeg.c:2277
#9 0x0000000000412ec3 in main (argc=7, argv=0x7fffffffddd8) at
ffmpeg.c:4530
(gdb) disass $pc-32 $pc+32
Dump of assembler code from 0x464276 to 0x4642b6:
0x0000000000464276 <convert_mask_to_strength_mask+209>: mov %eax,%eax
0x0000000000464278 <convert_mask_to_strength_mask+211>: add
-0x20(%rbp),%rax
0x000000000046427c <convert_mask_to_strength_mask+215>: movzbl (%rax),%eax
0x000000000046427f <convert_mask_to_strength_mask+218>: movsbl %al,%eax
0x0000000000464282 <convert_mask_to_strength_mask+221>: cmp
-0x18(%rbp),%eax
0x0000000000464285 <convert_mask_to_strength_mask+224>: jl 0x4642b8
<convert_mask_to_strength_mask+275>
0x0000000000464287 <convert_mask_to_strength_mask+226>: mov
-0x38(%rbp),%rax
0x000000000046428b <convert_mask_to_strength_mask+230>: mov (%rax),%eax
0x000000000046428d <convert_mask_to_strength_mask+232>: mov %eax,%eax
0x000000000046428f <convert_mask_to_strength_mask+234>: neg %rax
0x0000000000464292 <convert_mask_to_strength_mask+237>: add
-0x20(%rbp),%rax
0x0000000000464296 <convert_mask_to_strength_mask+241>: movzbl (%rax),%eax
0x0000000000464299 <convert_mask_to_strength_mask+244>: movsbl %al,%eax
0x000000000046429c <convert_mask_to_strength_mask+247>: cmp
-0x18(%rbp),%eax
0x000000000046429f <convert_mask_to_strength_mask+250>: jl 0x4642b8
<convert_mask_to_strength_mask+275>
0x00000000004642a1 <convert_mask_to_strength_mask+252>: mov
-0x20(%rbp),%rax
0x00000000004642a5 <convert_mask_to_strength_mask+256>: movzbl (%rax),%eax
0x00000000004642a8 <convert_mask_to_strength_mask+259>: lea
0x1(%rax),%edx
0x00000000004642ab <convert_mask_to_strength_mask+262>: mov
-0x20(%rbp),%rax
0x00000000004642af <convert_mask_to_strength_mask+266>: mov %dl,(%rax)
0x00000000004642b1 <convert_mask_to_strength_mask+268>: movl
$0x1,-0x14(%rbp)
End of assembler dump.
(gdb) info register
rax 0x7ffff7f3bc11 140737353333777
rbx 0x1521fd0 22159312
rcx 0x240 576
rdx 0x2 2
rsi 0x148b310 21541648
rdi 0x1481140 21500224
rbp 0x7fffffffcb90 0x7fffffffcb90
rsp 0x7fffffffcb88 0x7fffffffcb88
r8 0x7ffff7fcd6f0 140737353930480
r9 0x0 0
r10 0x22 34
r11 0x246 582
r12 0x14aa5c0 21669312
r13 0x7fffffffddd0 140737488346576
r14 0x0 0
r15 0x0 0
rip 0x464296 0x464296 <convert_mask_to_strength_mask+241>
eflags 0x10207 [ CF PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
fctrl 0x37f 895
fstat 0x0 0
ftag 0xffff 65535
fiseg 0x0 0
fioff 0x0 0
foseg 0x0 0
fooff 0x0 0
fop 0x0 0
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
}}}
--
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/249#comment:3>
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