February 2012 - FFmpeg-trac - lists.ffmpeg.org

#924(avcodec:new): libxvid video codec leaks temporary files
by FFmpeg 02 Mar '13

02 Mar '13

#924: libxvid video codec leaks temporary files -------------------------------------+------------------------------------- Reporter: khali | Type: Status: new | enhancement Component: avcodec | Priority: minor Keywords: temporary | Version: 0.9.1 file | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- When encoding with -vcodec libxvid in two-pass mode, the second pass creates a copy of the first-pass log as /tmp/xvidff.*. This copy is not deleted when the second-pass encoding ends. I don't know what sense it makes to create a copy of the file in the first place, but assuming there is a good reason for that, this temporary file should be deleted by ffmpeg before it quits. I happen to have /tmp mounted in memory (tmpfs) so every file left behind is actually stealing my memory until next reboot. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/924> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#653(undetermined:new): ffplay freezes every 30 seconds when playing rtsp stream with authentication
by FFmpeg 02 Mar '13

02 Mar '13

#653: ffplay freezes every 30 seconds when playing rtsp stream with authentication -------------------------------------+------------------------------------- Reporter: imbens | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Using ffplay on Win32 I am trying to play an h264 rtsp stream from an Axis camera. ffplay freezes for approx. 2 seconds every 30 seconds. When looking at the stack av_get_random_seed seems the culprit. Every 30 seconds ffplay wants to send a keep-alive message. ff_rtsp_send_cmd_with_content_async calls ff_http_auth_create_response. ff_http_auth_create_response calls make_digest_auth. make_digest_auth calls av_get_random_seed. av_get_random_seed calls get_generic_seed. It looks like get_generic_seed takes approx. 1 second to complete. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/653> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#292(avdevice:new): ffplay -f video4linux2 regression
by FFmpeg 01 Mar '13

01 Mar '13

#292: ffplay -f video4linux2 regression -------------------------+------------------------------- Reporter: cehoyos | Owner: Type: defect | Status: new Priority: normal | Component: avdevice Version: git-master | Keywords: ffplay regression Blocked By: | Blocking: Reproduced: 1 | Analyzed: 0 -------------------------+------------------------------- ffplay -f video4linux2 /dev/video0 does not work any more since r25159, 70f77361d8c339d516e3c4d1c4ab2bf9096d7cc6: Author: José Miguel Gonçalves <jose.goncalves(a)inov.pt> Date: Thu Sep 23 09:16:05 2010 +0000 Allow to set the frame rate in v4l2 devices Patch by José Miguel Gonçalves (jose DOT goncalves AT inov DOT pt) {{{ $ ffplay -f video4linux2 /dev/video0 FFplay version git-6ac6e3d, Copyright (c) 2003-2010 the FFmpeg developers built on Jun 21 2011 01:05:14 with gcc 4.5.3 configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --disable-encoders --disable-muxers libavutil 50.27. 0 / 50.27. 0 libavcore 0. 9. 0 / 0. 9. 0 libavcodec 52.89. 0 / 52.89. 0 libavformat 52.78. 5 / 52.78. 5 libavdevice 52. 2. 2 / 52. 2. 2 libavfilter 1.39. 0 / 1.39. 0 libswscale 0.11. 0 / 0.11. 0 [video4linux2 @ 0x103e6d0] Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2, from '/dev/video0': Duration: N/A, start: 1308611201.235607, bitrate: 132710 kb/s Stream #0.0: Video: rawvideo, yuv420p, 768x576, 132710 kb/s, 25 tbr, 1000k tbn, 25 tbc 1308611201.62 A-V: 0.000 s:0.2 aq= 0KB vq= 0KB sq= 0B f=0/9 }}} {{{ $ ffplay -f video4linux2 /dev/video0 FFplay version git-70f7736, Copyright (c) 2003-2010 the FFmpeg developers built on Jun 21 2011 01:07:25 with gcc 4.5.3 configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --disable-encoders --disable-muxers libavutil 50.27. 0 / 50.27. 0 libavcore 0. 9. 0 / 0. 9. 0 libavcodec 52.89. 0 / 52.89. 0 libavformat 52.78. 5 / 52.78. 5 libavdevice 52. 2. 2 / 52. 2. 2 libavfilter 1.39. 0 / 1.39. 0 libswscale 0.11. 0 / 0.11. 0 [video4linux2 @ 0x103e6d0] ioctl set time per frame(1/25) failed /dev/video0: Input/output error }}} -- Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/292> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#443(undetermined:new): -color_range AVOption appears to do nothing
by FFmpeg 01 Mar '13

01 Mar '13

#443: -color_range AVOption appears to do nothing --------------------------------------+---------------------------------- Reporter: nichot20 | Type: defect Status: new | Priority: normal Component: undetermined | Version: git Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------------+---------------------------------- according to source -color_range <int> can take the following values:- "0" auto "1" 16-235 "2" 0-255 and it functions on encode and decode. However altering the option value appears to make no change to the way media is processed, either on input, or output. Attached stills sources and script to generate outputs using variations in value attached. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/443> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#1009(undetermined:new): XvBA - AMD Hardware acceleration
by FFmpeg 27 Feb '13

27 Feb '13

#1009: XvBA - AMD Hardware acceleration -------------------------------------+------------------------------------- Reporter: freespacer | Type: Status: new | enhancement Component: | Priority: normal undetermined | Version: Keywords: | unspecified Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- It would be nice if ffmpeg supports XvBA hardware acceleration because VA- API/XvBA fell into an unmaintained modus. More Information about the hardware acceleration interface: http://en.wikipedia.org/wiki/X-Video_Bitstream_Acceleration XvBA SDK: http://developer.amd.com/zones/opensource/Pages/default.aspx An another project implements the XvBA interface: http://www.phoronix.com/scan.php?page=news_item&px=MTAyODU -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1009> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#45(undetermined:new): FFplay do not respect resize alghoritm set in the sourcecode
by FFmpeg 26 Feb '13

26 Feb '13

#45: FFplay do not respect resize alghoritm set in the sourcecode --------------------------+-------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- issue 1804 https://roundup.libav.org/file834/test.tif When I run FFplay like this: ffplay -x 504 -y 376 test.tif the picture will be displayed incorrectly (looks like chessboard). this is not reproducible with ffmpeg: ffmpeg -i test.tif -s 504x376 out.bmp -------- C:\>ffmpeg -i test.tif FFmpeg version SVN-r22379, Copyright (c) 2000-2010 the FFmpeg developers built on Mar 9 2010 06:09:18 with gcc 4.4.2 configuration: --enable-memalign-hack --cross-prefix=i686-mingw32- --cc=ccache -i686-mingw32-gcc --arch=i686 --target-os=mingw32 --enable-runtime- cpudetect --e nable-avisynth --enable-gpl --enable-version3 --enable-bzlib --enable- libgsm --e nable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-l ibspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libsc hroedinger --enable-libx264 --enable-libopencore_amrwb --enable- libopencore_amrn b libavutil 50.11. 0 / 50.11. 0 libavcodec 52.58. 0 / 52.58. 0 libavformat 52.55. 0 / 52.55. 0 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.10. 0 / 0.10. 0 Input #0, image2, from 'test.tif': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0.0: Video: tiff, monob, 1024x768, 25 tbr, 25 tbn, 25 tbc At least one output file must be specified -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/45> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#285(FFmpeg:new): RTSP h264 video stream always reports corrupted macroblock
by FFmpeg 20 Feb '13

20 Feb '13

#285: RTSP h264 video stream always reports corrupted macroblock --------------------------+--------------------- Reporter: bovine | Owner: michael Type: defect | Status: new Priority: normal | Component: FFmpeg Version: unspecified | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 --------------------------+--------------------- I am trying to convert a RTSP h264 video stream from a "Geovision" IP camera to any other format but ffmpeg always sees errors in the video data. The resulting video only shows the first few lines of each frame. I've captured a few seconds of video (~4MB) to a file using the "openRTSP" utility. Unfortunately, your ftp server at upload.ffmpeg.org currently appears to be offline, so it is here: http://www.bovine.net/~jlawson/exchange/bovine-video-H264-1 bovine:~>ffmpeg -i bovine-video-H264-1 -y -vcodec mjpeg -an record.mjpeg FFmpeg version 0.6.3, Copyright (c) 2000-2010 the FFmpeg developers built on Jun 14 2011 01:06:02 with gcc 4.2.1 20070719 [FreeBSD] configuration: --prefix=/usr/local --mandir=/usr/local/man --enable- shared --enable-gpl --enable-postproc --enable-avfilter --enable-avfilter- lavf --enable-pthreads --enable-x11grab --enable-memalign-hack --cc=cc --extra-cflags=-msse -I/usr/local/include/vorbis -I/usr/local/include --extra-ldflags=-L/usr/local/lib --extra-libs=-pthread --disable-debug --enable-runtime-cpudetect --disable-indev=alsa --disable-outdev=alsa --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libdirac --disable-libfaac --enable-libfaad --enable-libfaadbin --disable-libgsm --disable-libmp3lame --disable-libopenjpeg --enable-libschroedinger --disable-ffplay --disable-libspeex --enable-libtheora --disable-vaapi --disable-vdpau --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 [h264 @ 0x80460db10]corrupted macroblock 100 12 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 100 12 [h264 @ 0x80460db10]concealing 6093 DC, 6093 AC, 6093 MV errors [h264 @ 0x80460db10]illegal POC type 4 [h264 @ 0x80460db10]missing picture in access unit [h264 @ 0x804622010]Estimating duration from bitrate, this may be inaccurate Seems stream 0 codec frame rate differs from container frame rate: 15.00 (15/1) -> 7.50 (15/2) Input #0, h264, from 'video-H264-1': Duration: N/A, bitrate: N/A Stream #0.0: Video: h264, yuv420p, 2048x1944, 7.50 fps, 7.50 tbr, 1200k tbn, 15 tbc Output #0, mjpeg, to 'record.mjpeg': Metadata: encoder : Lavf52.64.2 Stream #0.0: Video: mjpeg, yuvj420p, 2048x1944, q=2-31, 200 kb/s, 90k tbn, 7.50 tbc Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding [h264 @ 0x80460db10]corrupted macroblock 100 12 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 100 12 [h264 @ 0x80460db10]concealing 6093 DC, 6093 AC, 6093 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 45 14 [h264 @ 0x80460db10]concealing 5892 DC, 5892 AC, 5892 MV errors [h264 @ 0x80460db10]concealing 5847 DC, 5847 AC, 5847 MV errors [h264 @ 0x80460db10]concealing 5840 DC, 5840 AC, 5840 MV errors [h264 @ 0x80460db10]corrupted macroblock 92 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 92 14 [h264 @ 0x80460db10]concealing 5845 DC, 5845 AC, 5845 MV errors frame= 5 fps= 0 q=5.8 size= 1162kB time=0.67 bitrate=14283.1kbits/s ^M[h264 @ 0x80460db10]corrupted macroblock 101 12 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 101 12 [h264 @ 0x80460db10]concealing 6092 DC, 6092 AC, 6092 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 39 14 [h264 @ 0x80460db10]concealing 5898 DC, 5898 AC, 5898 MV errors [h264 @ 0x80460db10]corrupted macroblock 80 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 80 14 [h264 @ 0x80460db10]concealing 5857 DC, 5857 AC, 5857 MV errors [h264 @ 0x80460db10]illegal reordering_of_pic_nums_idc [h264 @ 0x80460db10]decode_slice_header error [h264 @ 0x80460db10]concealing 5846 DC, 5846 AC, 5846 MV errors frame= 9 fps= 7 q=16.7 size= 1744kB time=1.20 bitrate=11902.6kbits/s ^M[h264 @ 0x80460db10]corrupted macroblock 94 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 94 14 [h264 @ 0x80460db10]concealing 5843 DC, 5843 AC, 5843 MV errors [h264 @ 0x80460db10]concealing 6087 DC, 6087 AC, 6087 MV errors [h264 @ 0x80460db10]corrupted macroblock 54 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 54 14 [h264 @ 0x80460db10]concealing 13819 DC, 13819 AC, 13819 MV errors frame= 12 fps= 7 q=24.8 size= 2052kB time=1.60 bitrate=10504.5kbits/s ^M[h264 @ 0x80460db10]concealing 7680 DC, 7680 AC, 7680 MV errors [h264 @ 0x80460db10]negative number of zero coeffs at 91 14 [h264 @ 0x80460db10]error while decoding MB 91 14 [h264 @ 0x80460db10]concealing 5846 DC, 5846 AC, 5846 MV errors [h264 @ 0x80460db10]negative number of zero coeffs at 90 14 [h264 @ 0x80460db10]error while decoding MB 90 14 [h264 @ 0x80460db10]concealing 5847 DC, 5847 AC, 5847 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 91 14 [h264 @ 0x80460db10]concealing 5846 DC, 5846 AC, 5846 MV errors frame= 16 fps= 7 q=24.8 size= 2444kB time=2.13 bitrate=9383.7kbits/s ^M[h264 @ 0x80460db10]concealing 6091 DC, 6091 AC, 6091 MV errors [h264 @ 0x80460db10]concealing 5888 DC, 5888 AC, 5888 MV errors [h264 @ 0x80460db10]concealing 5801 DC, 5801 AC, 5801 MV errors [h264 @ 0x80460db10]cbp too large (4294967295) at 93 14 [h264 @ 0x80460db10]error while decoding MB 93 14 [h264 @ 0x80460db10]concealing 5844 DC, 5844 AC, 5844 MV errors frame= 20 fps= 7 q=24.8 size= 2826kB time=2.67 bitrate=8682.8kbits/s ^M[h264 @ 0x80460db10]corrupted macroblock 93 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 93 14 [h264 @ 0x80460db10]concealing 13780 DC, 13780 AC, 13780 MV errors [h264 @ 0x80460db10]illegal POC type 4 [h264 @ 0x80460db10]concealing 7680 DC, 7680 AC, 7680 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 100 12 [h264 @ 0x80460db10]concealing 6093 DC, 6093 AC, 6093 MV errors frame= 23 fps= 7 q=24.8 size= 3109kB time=3.07 bitrate=8304.3kbits/s ^M[h264 @ 0x80460db10]corrupted macroblock 41 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 41 14 [h264 @ 0x80460db10]concealing 5896 DC, 5896 AC, 5896 MV errors [h264 @ 0x80460db10]corrupted macroblock 84 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 84 14 [h264 @ 0x80460db10]concealing 5853 DC, 5853 AC, 5853 MV errors [h264 @ 0x80460db10]corrupted macroblock 90 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 90 14 [h264 @ 0x80460db10]concealing 5847 DC, 5847 AC, 5847 MV errors [h264 @ 0x80460db10]concealing 5842 DC, 5842 AC, 5842 MV errors frame= 27 fps= 7 q=24.8 size= 3494kB time=3.60 bitrate=7951.4kbits/s ^M[h264 @ 0x80460db10]corrupted macroblock 99 12 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 99 12 [h264 @ 0x80460db10]concealing 6094 DC, 6094 AC, 6094 MV errors [h264 @ 0x80460db10]corrupted macroblock 51 14 (total_coeff=-1) [h264 @ 0x80460db10]error while decoding MB 51 14 [h264 @ 0x80460db10]concealing 5886 DC, 5886 AC, 5886 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 90 14 [h264 @ 0x80460db10]concealing 5847 DC, 5847 AC, 5847 MV errors [h264 @ 0x80460db10]Invalid level prefix [h264 @ 0x80460db10]error while decoding MB 92 14 [h264 @ 0x80460db10]concealing 5845 DC, 5845 AC, 5845 MV errors frame= 31 fps= 7 q=24.8 size= 3884kB time=4.13 bitrate=7698.5kbits/s ^M[h264 @ 0x80460db10]negative number of zero coeffs at 91 14 [h264 @ 0x80460db10]error while decoding MB 91 14 [h264 @ 0x80460db10]concealing 5846 DC, 5846 AC, 5846 MV errors [h264 @ 0x80460db10]top block unavailable for requested intra4x4 mode -1 at 2 0 [h264 @ 0x80460db10]error while decoding MB 2 0 [h264 @ 0x80460db10]concealing 7680 DC, 7680 AC, 7680 MV errors [h264 @ 0x80460db10]missing picture in access unit frame= 33 fps= 6 q=24.8 Lsize= 4075kB time=4.40 bitrate=7587.8kbits/s video:4075kB audio:0kB global headers:0kB muxing overhead 0.000000% -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/285> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#814(undetermined:new): rgb24 -> yuv420p conversion is not precise?
by FFmpeg 09 Feb '13

09 Feb '13

#814: rgb24 -> yuv420p conversion is not precise? -------------------------------------+------------------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- I don't know if this is a bug (or it should be like it is), but when you convert the attached rgb24 sample to yuv420p then for example the red line in the picture will be not smooth anymore {{{ C:\>ffmpeg -i tetest.tif -pix_fmt yuv420p out.tif ffmpeg version N-35966-g1d0ae92, Copyright (c) 2000-2011 the FFmpeg developers built on Dec 19 2011 13:01:15 with gcc 4.6.2 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable- libope ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable- libgsm --en able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable- libschroedinger - -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo- amrwben c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable- libxvid --enable-zlib libavutil 51. 32. 0 / 51. 32. 0 libavcodec 53. 46. 1 / 53. 46. 1 libavformat 53. 27. 0 / 53. 27. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 53. 0 / 2. 53. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 Input #0, image2, from 'tetest.tif': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0:0: Video: tiff, rgb24, 1024x768, 25 tbr, 25 tbn, 25 tbc [buffer @ 020E1200] w:1024 h:768 pixfmt:rgb24 tb:1/1000000 sar:0/1 sws_param: [buffersink @ 020E1480] auto-inserting filter 'auto-inserted scale 0' between th e filter 'src' and the filter 'out' [scale @ 020E1880] w:1024 h:768 fmt:rgb24 -> w:1024 h:768 fmt:yuv420p flags:0x4 Output #0, image2, to 'out.tif': Metadata: encoder : Lavf53.27.0 Stream #0:0: Video: tiff, yuv420p, 1024x768, q=2-31, 200 kb/s, 90k tbn, 25 t bc Stream mapping: Stream #0:0 -> #0:0 (tiff -> tiff) Press [q] to stop, [?] for help frame= 1 fps= 0 q=0.0 Lsize= 0kB time=00:00:00.04 bitrate= 0.0kbits/ s video:1158kB audio:0kB global headers:0kB muxing overhead -100.000000% }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/814> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#296(undetermined:new): avi file can't be seeked
by FFmpeg 09 Feb '13

09 Feb '13

#296: avi file can't be seeked --------------------------+-------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- The file seeks correctly with WMP/MPC, maybe it's possible to fix seeking for this kind of file in FFmpeg. (not a regression) http://www.datafilehost.com/download-2b89c308.html {{{ C:\>ffmpeg -i EVBPIC.AVI ffmpeg version git-N-30698-g39dbe9b, Copyright (c) 2000-2011 the FFmpeg develope rs built on Jun 10 2011 22:10:00 with gcc 4.5.3 configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable- runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libo pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable- libgsm -- enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable- libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enabl e-libx264 --enable-libxavs --enable-libxvid --enable-zlib --disable- outdev=sdl - -pkg-config=pkg-config libavutil 51. 8. 0 / 51. 8. 0 libavcodec 53. 7. 0 / 53. 7. 0 libavformat 53. 3. 0 / 53. 3. 0 libavdevice 53. 1. 1 / 53. 1. 1 libavfilter 2. 15. 0 / 2. 15. 0 libswscale 0. 14. 1 / 0. 14. 1 libpostproc 51. 2. 0 / 51. 2. 0 [avi @ 01DCA600] max_analyze_duration 5000000 reached at 5000000 Input #0, avi, from 'EVBPIC.AVI': Duration: 00:03:17.00, start: 0.000000, bitrate: 266 kb/s Stream #0.0: Video: msvideo1, pal8, 640x480, 1 fps, 1 tbr, 1 tbn, 1 tbc Stream #0.1: Audio: pcm_u8, 22050 Hz, 1 channels, u8, 176 kb/s At least one output file must be specified }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/296> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#964(undetermined:new): No h263 Mode B support?
by FFmpeg 09 Feb '13

09 Feb '13

#964: No h263 Mode B support? -------------------------------------+------------------------------------- Reporter: walker | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: h263 mode | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- It appears that Mode B support for h263 is not supported? I have a h263 over RTP stream dump from a commercial videophone that includes both Mode A and Mode B. From this thread on ffmpeg-devel, I'm taking it that only Mode A was ever supported? https://lists.libav.org/pipermail/ffmpeg-devel/2009-April/067074.html I have tested the attached stream on four different commercial videophones. They all reproduce the video flawlessly. ffmpeg renders the Mode A packets, but simply prints out errors for the Mode B packets. I am attaching three files: demo.h263: The raw stream that is sent both to and from a videophone. H263 + RTP. ffmpeg.out: The output from ffmpeg -i demo.h263 demo.mp4 demo.mp4: The ffmpeg-generated mp4 from the h263 stream. It seems that only the Mode A packets are interpreted by ffmpeg, so the video looks quite corrupted. Sample error output from the attached+complete ffmpeg.out dump: [h263 @ 0x7f86b083fc00] Bad picture start code [h263 @ 0x7f86b083fc00] header damaged [h263 @ 0x7f86b083fc00] I cbpy damaged at 20 0 [h263 @ 0x7f86b083fc00] Error at MB: 20 [h263 @ 0x7f86b083fc00] illegal ac vlc code at 0x14 [h263 @ 0x7f86b083fc00] Error at MB: 322 [h263 @ 0x7f86b083fc00] I cbpy damaged at 2 15 [h263 @ 0x7f86b083fc00] Error at MB: 347 [h263 @ 0x7f86b083fc00] I cbpy damaged at 1 5 [h263 @ 0x7f86b083fc00] Error at MB: 116 [h263 @ 0x7f86b083fc00] run overflow at 1x16 i:1 [h263 @ 0x7f86b083fc00] Error at MB: 369 [h263 @ 0x7f86b083fc00] illegal dc 128 at 0 5 [h263 @ 0x7f86b083fc00] run overflow at 1x5 i:1 [h263 @ 0x7f86b083fc00] Error at MB: 116 [h263 @ 0x7f86b083fc00] concealing 396 DC, 396 AC, 396 MV errors -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/964> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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