June 2011 - FFmpeg-trac - lists.ffmpeg.org

#185(avformat:new): ffmpeg segfaults with large ogg/vorbis files
by FFmpeg 03 Jun '11

03 Jun '11

#185: ffmpeg segfaults with large ogg/vorbis files ---------------------------------+-------------------------- Reporter: Philius | Type: defect Status: new | Priority: normal Component: avformat | Version: unspecified Keywords: segfault ogg/vorbis | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | ---------------------------------+-------------------------- I've got a 2.7GB ogg/vorbis file I want to convert to an AVI. I recorded it with cheese. I built a debugging version of ffmpeg 0.6.1 and ran it under kdbg to track it down. The problem is in oggdec.c line 282. It's trying to double the buffer size and that allocation fails, but this isn't checked. I think mmap() is the only way to go with such large files. Question: can ffmpeg or some other program split up a large file before processing? ffmpeg would need to be aware of this for two-pass processing. I downloaded ffmpeg-0.7-rc1 and the problem in oggdec.c is still there. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/185> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#256(undetermined:new): FFmpeg fails to build after SDL output device addition
by FFmpeg 03 Jun '11

03 Jun '11

#256: FFmpeg fails to build after SDL output device addition --------------------------+------------------------- Reporter: KSHawkEye | Type: defect Status: new | Priority: critical Component: undetermined | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+------------------------- The current FFmpeg fails to build due to the new SDL output device additions. FFmpeg fails at make with: {{{ ffmpeg.c:4474:5: error: no previous prototype for ‘SDL_main’ }}} I should note that SDL is built and have worked with previous versions. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/256> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#184(avcodec:new): specifying vpre for libx264 cause "bad value for 'weightp': ''" error message
by FFmpeg 02 Jun '11

02 Jun '11

#184: specifying vpre for libx264 cause "bad value for 'weightp': ''" error message ---------------------+-------------------------- Reporter: verem | Type: defect Status: new | Priority: normal Component: avcodec | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | ---------------------+-------------------------- I am trying to use preset of libx264 supplied with ffmpeg, but faild due to error message: -- skipped -- [libx264 @ 0x9ae5b60] bad value for 'weightp': -- skipped -- adding option wpredp to libx264-default.ffpreset [...] wpredp=2 [...] does not solve a problem... full ffmpeg output: [root@dev-4 ~]# dvgrab -noavc - | /usr/local/enctools/bin/ffmpeg -f dv -i - -s cif -acodec libfaac -vcodec libx264 -ab 64k -ac 1 -vb 512k -vpre default -f mp4 -y test.dat ffmpeg version git-N-29757-gb97b4b5, Copyright (c) 2000-2011 the FFmpeg developers built on May 10 2011 08:40:57 with gcc 4.5.1 20100924 (Red Hat 4.5.1-4) configuration: --prefix=/usr/local/enctools --extra- cflags=-I/usr/local/enctools/include --extra- ldflags=-L/usr/local/enctools/lib --enable-shared --enable-gpl --enable- version3 --enable-nonfree --enable-postproc --enable-avfilter --enable- pthreads --enable-bzlib --enable-zlib --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid libavutil 51. 2. 1 / 51. 2. 1 libavcodec 53. 5. 0 / 53. 5. 0 libavformat 53. 0. 3 / 53. 0. 3 libavdevice 53. 0. 0 / 53. 0. 0 libavfilter 2. 5. 0 / 2. 5. 0 libswscale 0. 14. 0 / 0. 14. 0 libpostproc 51. 2. 0 / 51. 2. 0 Found AV/C device with GUID 0x0050c2fffe54e000 Waiting for DV... [dv @ 0x9acdb20] Estimating duration from bitrate, this may be inaccurate Input #0, dv, from 'pipe:': Duration: N/A, start: 0.000000, bitrate: 28800 kb/s Stream #0.0: Video: dvvideo, yuv420p, 720x576, 28800 kb/s, PAR 16:15 DAR 4:3, 25 tbr, 25 tbn, 25 tbc Stream #0.1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s [buffer @ 0x9acd980] w:720 h:576 pixfmt:yuv420p tb:1/1000000 sar:16/15 [scale @ 0x9adf940] w:720 h:576 fmt:yuv420p -> w:352 h:288 fmt:yuv420p flags:0xa0000004 [libx264 @ 0x9ae5b60] bad value for 'weightp': '' Output #0, mp4, to 'test.dat': Stream #0.0: Video: libx264, yuv420p, 352x288 [PAR 16:15 DAR 176:135], q=10-51, 512 kb/s, 90k tbn, 25 tbc Stream #0.1: Audio: libfaac, 48000 Hz, 1 channels, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height Error: no DV [root@dev-4 ~]# -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/184> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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