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

#449(undetermined:new): ALSA, as a first input, together with -isync gives error "[alsa @ 0x97ddae0] cannot set parameters (Connection timed out)"
by FFmpeg 21 Aug '13

21 Aug '13

#449: ALSA, as a first input, together with -isync gives error "[alsa @ 0x97ddae0] cannot set parameters (Connection timed out)" -------------------------------------+------------------------------------- Reporter: burek | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- This works: {{{ # ffmpeg -isync -f video4linux2 -r 15 -s qqvga -i /dev/video0 -f alsa -ac 1 -i hw:1 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg version N-32427-g22bf6f7, Copyright (c) 2000-2011 the FFmpeg developers built on Sep 10 2011 06:14:04 with gcc 4.6.1 configuration: --enable-static --enable-shared --enable-gpl --enable- nonfree --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-libaacplus --extra-cflags=-fPIC WARNING: library configuration mismatch postproc configuration: --extra-version=4:0.6.2-5 --arch=i386 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libsp eex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable- vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --e nable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cp u=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay libavutil 51. 16. 0 / 51. 16. 0 libavcodec 53. 13. 0 / 53. 13. 0 libavformat 53. 12. 0 / 53. 12. 0 libavdevice 53. 3. 0 / 53. 3. 0 libavfilter 2. 39. 0 / 2. 39. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 [video4linux2 @ 0x998fb00] Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2, from '/dev/video0': Duration: N/A, start: 7618.708052, bitrate: 4608 kb/s Stream #0.0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 160x120, 4608 kb/s, 15 tbr, 1000k tbn, 15 tbc [alsa @ 0x99906e0] Estimating duration from bitrate, this may be inaccurate Input #1, alsa, from 'hw:1': Duration: N/A, start: 1315632754.420454, bitrate: N/A Stream #1.0: Audio: pcm_s16le, 16000 Hz, 1 channels, s16, 256 kb/s Incompatible pixel format 'yuyv422' for codec 'libx264', auto-selecting format 'yuv420p' [buffer @ 0x999ab20] w:160 h:120 pixfmt:yuyv422 tb:1/1000000 sar:0/1 sws_param: [buffersink @ 0x999abc0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out' [scale @ 0x99961e0] w:160 h:120 fmt:yuyv422 -> w:160 h:120 fmt:yuv420p flags:0x4 [libx264 @ 0x998b7c0] using cpu capabilities: MMX2 SSE2 Cache64 [libx264 @ 0x998b7c0] profile Constrained Baseline, level 1.0 [mpegts @ 0x998b040] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts Output #0, mpegts, to 'udp://192.168.25.101:10001': Metadata: encoder : Lavf53.12.0 Stream #0.0: Video: h264, yuv420p, 160x120, q=-1--1, 90k tbn, 15 tbc Stream #0.1: Audio: aac, 44100 Hz, 1 channels, s16, 96 kb/s Stream mapping: Stream #0.0 -> #0.0 (rawvideo -> libx264) Stream #1.0 -> #0.1 (pcm_s16le -> aac) Press [q] to stop, [?] for help frame= 288 fps= 17 q=24.0 Lsize= 604kB time=00:00:17.20 bitrate= 287.6kbits/s dup=30 drop=0 video:324kB audio:188kB global headers:0kB muxing overhead 17.897995% frame I:20 Avg QP:15.81 size: 5393 [libx264 @ 0x998b7c0] frame P:268 Avg QP:18.68 size: 835 [libx264 @ 0x998b7c0] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0x998b7c0] mb P I16..4: 0.5% 0.0% 0.0% P16..4: 60.0% 0.0% 0.0% 0.0% 0.0% skip:39.5% [libx264 @ 0x998b7c0] coded y,uvDC,uvAC intra: 90.5% 95.0% 86.3% inter: 26.5% 48.7% 14.6% [libx264 @ 0x998b7c0] i16 v,h,dc,p: 40% 25% 20% 15% [libx264 @ 0x998b7c0] i8c dc,h,v,p: 49% 7% 30% 13% [libx264 @ 0x998b7c0] kb/s:138.22 }}} This doesn't work (just switched places for audio and video input): {{{ # ffmpeg -isync -f alsa -ac 1 -i hw:1 -f video4linux2 -r 15 -s qqvga -i /dev/video0 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg version N-32427-g22bf6f7, Copyright (c) 2000-2011 the FFmpeg developers built on Sep 10 2011 06:14:04 with gcc 4.6.1 configuration: --enable-static --enable-shared --enable-gpl --enable- nonfree --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-libaacplus --extra-cflags=-fPIC WARNING: library configuration mismatch postproc configuration: --extra-version=4:0.6.2-5 --arch=i386 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable- vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable- shared --disable-static --disable-ffmpeg --disable-ffplay libavutil 51. 16. 0 / 51. 16. 0 libavcodec 53. 13. 0 / 53. 13. 0 libavformat 53. 12. 0 / 53. 12. 0 libavdevice 53. 3. 0 / 53. 3. 0 libavfilter 2. 39. 0 / 2. 39. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 [alsa @ 0x8303ae0] cannot set parameters (Connection timed out) hw:1: Input/output error }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/449> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#450(documentation:new): Specify the position of -isync more precisely
by FFmpeg 21 Aug '13

21 Aug '13

#450: Specify the position of -isync more precisely -------------------------------------+------------------------------------- Reporter: burek | Owner: stefano Type: | Status: new enhancement | Component: Priority: normal | documentation Version: | Keywords: unspecified | Blocking: Blocked By: | Analyzed by developer: 0 Reproduced by developer: 0 | -------------------------------------+------------------------------------- I've figured that the -isync option does not produce the same effect when placed in front of inputs, between the inputs and after the inputs. I just think it would be a good idea to put a little explanation in the documentation about the proper usage of that option. For example, these 2 examples produce different results: ffmpeg -f alsa -ac 1 -i hw:1 -isync -f video4linux2 -r 15 -s qqvga -i /dev/video0 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg -f alsa -ac 1 -i hw:1 -f video4linux2 -r 15 -s qqvga -i /dev/video0 -isync -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 (the second example has -isync moved after the 2nd input) -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/450> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 3

#679(undetermined:new): DVB subtitles are badly placed on the screen
by FFmpeg 18 Aug '13

18 Aug '13

#679: DVB subtitles are badly placed on the screen -------------------------------------+------------------------------------- Reporter: cehoyos | Owner: Type: defect | Status: new Priority: normal | Component: Version: git- | undetermined master | Keywords: dvbsub Blocked By: | mpegts Reproduced by developer: 0 | Blocking: | Analyzed by developer: 0 -------------------------------------+------------------------------------- Attached sample shows subtitles too far right on the screen so that a part cannot be read. mplayer -demuxer mpegts -sid 593 and mplayer -demuxer lavf -sid 0 show the subtitle at the right position in the center of the screen (but cuts away the upper half). {{{ $ ffmpeg -i subtitles.ts ffmpeg version N-35086-g530a540, Copyright (c) 2000-2011 the FFmpeg developers built on Nov 23 2011 00:29:45 with gcc 4.5.3 configuration: --cc='/usr/local/gcc-4.5.3/bin/gcc -m32' libavutil 51. 26. 0 / 51. 26. 0 libavcodec 53. 36. 0 / 53. 36. 0 libavformat 53. 21. 0 / 53. 21. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 49. 0 / 2. 49. 0 libswscale 2. 1. 0 / 2. 1. 0 [mpeg2video @ 0x8dac120] mpeg_decode_postinit() failure Last message repeated 10 times [mpegts @ 0x8d93a80] max_analyze_duration 5000000 reached at 5016000 [NULL @ 0x8db0420] start time is not set in estimate_timings_from_pts [NULL @ 0x8dd06c0] start time is not set in estimate_timings_from_pts [NULL @ 0x8dd6780] start time is not set in estimate_timings_from_pts [NULL @ 0x8ddca00] start time is not set in estimate_timings_from_pts [NULL @ 0x8de2c80] start time is not set in estimate_timings_from_pts [mpegts @ 0x8d93a80] PES packet size mismatch Input #0, mpegts, from 'subtitles.ts': Duration: 00:00:09.17, start: 11318.457333, bitrate: 2233 kb/s Program 8270 Metadata: service_name : ITV1 service_provider: ITV Program 8325 Metadata: service_name : ITV2 service_provider: ITV Program 8634 Metadata: service_name : Rabbit service_provider: Teletext Limited Program 8384 Metadata: service_name : Channel 4 service_provider: Channel 4 TV Program 8448 Metadata: service_name : E4 service_provider: Channel 4 TV Program 8442 Metadata: service_name : More 4 service_provider: Channel 4 TV Stream #0:0[0x24e]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 544x576 [SAR 32:17 DAR 16:9], 15000 kb/s, 26.80 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x24f](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16, 192 kb/s Stream #0:2[0x250](eng): Audio: mp3 ([4][0][0][0] / 0x0004), 0 channels, s16 (visual impaired) Stream #0:3[0x251](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) Stream #0:4[0x84f]: Unknown: none ([11][0][0][0] / 0x000B) Stream #0:5[0x911]: Unknown: none ([11][0][0][0] / 0x000B) Stream #0:6[0x912]: Unknown: none ([11][0][0][0] / 0x000B) Stream #0:7[0xbbb]: Unknown: none ([11][0][0][0] / 0x000B) Program 8452 Metadata: service_name : Channel 4+1 service_provider: Channel 4 TV Program 8577 Metadata: service_name : Gay Rabbit service_provider: Teletext Limited Program 8500 Metadata: service_name : Channel 5 service_provider: five Program 8370 Metadata: service_name : ITV1 +1 service_provider: ITV At least one output file must be specified }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/679> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 2

#500(undetermined:new): Seemingly inconsistent AVIndexEntry timestamps for movs starting with B-Frames
by FFmpeg 09 Aug '13

09 Aug '13

#500: Seemingly inconsistent AVIndexEntry timestamps for movs starting with B-Frames -------------------------------------+------------------------------------- Reporter: rmk | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- A while ago I asked on the ml regarding the semantics of the undocumented fields of AVIndexEntry defined in avformat.h (http://www.mail-archive.com /libav-user(a)ffmpeg.org/msg00535.html) I didn't get an answer so I still do not know what the correct behaviour is but I have observed things that at least appear inconsistent. I have two examples of MPEG-2 files in a mov container which both start with the sequence BBI (presentation order). One is the file that is attached to issue #479 that has the following properties: Mesht0456_01_cut.MP4 AVStream.time_base = 1/30000 AVStream.start_time = 3003 (0.1001s) start frame order = BBI PTS of first I-Frame = 3003 PTS of first frame (B) = 0 first I-frame AVIndexEntry.timestamp = 0 Then another one (uploaded to http://www.datafilehost.com/download- 27d635cc.html since I do not have a smaller sample): xdcam_hd422_1080p24.mov AVStream.time_base = 1/2400 AVStream.start_time = 200 (0.08333333333333334s) start frame order = BBI PTS of first I-Frame = 200 PTS of first frame (B) = 0 first I-frame AVIndexEntry.timestamp = -100 (-0.416666666666667s) The first sample looks like AVIndexEntry.timestamp is set with the stream's start_time subtracted from the respective frame's PTS. This also works for all following index entries. However, this does not work for the second example. I have no idea if this is related to issue #479. All I'm trying to do is use the index (if it is there) to find out the PTSs of keyframes and I thought that was OK to do via AVIndexEntry. So either I am abusing the API and it would help to document this so others don't run into this or one of the files is broken or it is indeed a bug. In any case, just a short, unambiguous sentence of documentation for each AVIndexEntry field by someone who knows the semantics would help libav API users a great deal to use this and to help improve the seeking functionality of ffmpeg be it only by providing bug reports with samples. One more observation is that in both cases the timestamp of the index entry corresponding to the first I frame matches the DTS of the packet containing the I-Frame. Is that the semantics of AVIndexEntry.timestamp? In that case how would one derive the PTS of the I-frame from the index entry? Any insight/help would be greatly appreciated. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/500> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 3

#551(avformat:new): Enhancements for ffmpeg 0.6.3 when dealing with live H264 stream
by FFmpeg 02 Jul '13

02 Jul '13

#551: Enhancements for ffmpeg 0.6.3 when dealing with live H264 stream ----------------------------------+--------------------------------------- Reporter: ilevin | Type: enhancement Status: new | Priority: minor Component: avformat | Version: unspecified Keywords: H264 | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- Add abilities when writing to/reading from 3gp/mov format, and with no decoding/encoding (handling already encoding live stream from the net): 1. To store/retreive "btrt" bitrate box 2. Store/retreive "max NALU size" for H264 stream 3. Read "udta" box on a stream level -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/551> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 3

#397(swscale:new): swscale crashes when upscaling pictures using MMX2
by FFmpeg 17 Jun '13

17 Jun '13

#397: swscale crashes when upscaling pictures using MMX2 -------------------------+--------------------- Reporter: TobiX | Owner: michael Type: defect | Status: new Priority: normal | Component: swscale Version: git-master | Keywords: Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 -------------------------+--------------------- This crash was found using XBMC. XBMC would crash while generating thumbnails for videos which are smaller then the configured thumbnail size. If you want to reproduce this with XBMC, you need to compile it with "--enable-external-libraries" since the internal copy is very old and does not expose this bug. As far as I can see, this crash only happens when upscaling from a YUV to a RGB color space, sample run (make sure video is small then the scale filter options): {{{ $ ./ffmpeg_g -v 9 -loglevel 99 -i in.wmv -sws_flags fast_bilinear -vf "scale=640:480" -vframes 1 -vcodec png output.png ffmpeg version N-31884-gb854c2a, Copyright (c) 2000-2011 the FFmpeg developers built on Aug 14 2011 19:32:25 with gcc 4.6.1 configuration: --disable-doc --disable-stripping libavutil 51. 12. 0 / 51. 12. 0 libavcodec 53. 10. 0 / 53. 10. 0 libavformat 53. 7. 0 / 53. 7. 0 libavdevice 53. 3. 0 / 53. 3. 0 libavfilter 2. 31. 1 / 2. 31. 1 libswscale 2. 0. 0 / 2. 0. 0 [asf @ 0x1fc3420] Format asf probed with size=2048 and score=100 [asf @ 0x1fc3420] gpos mismatch our pos=24, end=26 [asf @ 0x1fc3420] gpos mismatch our pos=24, end=1168 [asf @ 0x1fc3420] gpos mismatch our pos=24, end=38 [asf @ 0x1fc3420] gpos mismatch our pos=24, end=238 [asf @ 0x1fc3420] gpos mismatch our pos=24, end=38 [wmav2 @ 0x1fc58c0] Unsupported bit depth: 0 [wmv2 @ 0x1fc7c20] Unsupported bit depth: 0 [asf @ 0x1fc3420] All info found Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 30.00 (30/1) Input #0, asf, from 'in.wmv': Metadata: WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 Duration: 00:00:10.23, start: 0.000000, bitrate: 302 kb/s Stream #0.0(eng), 5, 1/1000: Audio: wmav2, 44100 Hz, 1 channels, s16, 32 kb/s Stream #0.1(eng), 41, 1/1000: Video: wmv2, yuv420p, 320x240, 1/1000, 618 kb/s, 30 tbr, 1k tbn, 1k tbc Incompatible pixel format 'yuv420p' for codec 'png', auto-selecting format 'rgb24' [buffer @ 0x1fc5840] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param: [scale @ 0x1fc7720] w:320 h:240 fmt:yuv420p -> w:640 h:480 fmt:rgb24 flags:0x1 [png @ 0x1fbd740] Unsupported bit depth: 0 [wmv2 @ 0x1fc7c20] Unsupported bit depth: 0 Output #0, image2, to 'output.png': Metadata: WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 encoder : Lavf53.7.0 Stream #0.0(eng), 0, 1/90000: Video: png, rgb24, 640x480, 1/30, q=2-31, 200 kb/s, 90k tbn, 30 tbc Stream mapping: Stream #0.1 -> #0.0 Press [q] to stop, [?] for help [wmv2 @ 0x1fc7c20] I7:0/ zsh: segmentation fault ./ffmpeg_g -v 9 -loglevel 99 -i in.wmv -sws_flags fast_bilinear -vf -vframes }}} GDB session: {{{ (gdb) bt #0 0x00000000012894e0 in ?? () #1 0x0000000000944eef in hyscale_fast_MMX2 (c=0x12a1700, dst=0x0, dstWidth=19436768, src=0x13122c8 '^' <repeats 40 times>, ']' <repeats 48 times>, "\\\\\\\\\\\\\\\\]]]]]]]]", '\\' <repeats 40 times>, '[' <repeats 16 times>, 'Z' <repeats 40 times>..., srcW=320, xInc=32788) at libswscale/x86/swscale_template.c:2289 #2 0x0000000001295dc0 in ?? () #3 0x00000000009346c4 in hyscale (c=0x1295dc0, src=<value optimized out>, srcStride=0x7fffffffc650, srcSliceY=0, srcSliceH=240, dst=0x7fffffffc630, dstStride=0x7fffffffc660) at libswscale/swscale.c:2243 #4 swScale (c=0x1295dc0, src=<value optimized out>, srcStride=0x7fffffffc650, srcSliceY=0, srcSliceH=240, dst=0x7fffffffc630, dstStride=0x7fffffffc660) at libswscale/swscale.c:2688 #5 0x000000000091a79b in sws_scale (c=0x1295dc0, srcSlice=<value optimized out>, srcStride=0x7fffffffc700, srcSliceY=0, srcSliceH=240, dst=<value optimized out>, dstStride=0x7fffffffc710) at libswscale/swscale_unscaled.c:794 #6 0x00000000004503cc in scale_slice (sws=<value optimized out>, y=<value optimized out>, h=<value optimized out>, mul=<value optimized out>, field=0, link=<value optimized out>) at libavfilter/vf_scale.c:298 #7 0x0000000000450540 in draw_slice (link=0x1295ba0, y=0, h=240, slice_dir=1) at libavfilter/vf_scale.c:315 #8 0x0000000000447df4 in avfilter_draw_slice (link=0x1295ba0, y=0, h=240, slice_dir=1) at libavfilter/avfilter.c:616 #9 0x0000000000452740 in request_frame (link=0x1295ba0) at libavfilter/vsrc_buffer.c:196 #10 0x0000000000446f05 in avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:505 #11 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #12 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #13 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #14 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #15 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #16 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #17 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #18 avfilter_request_frame (link=<value optimized out>) at libavfilter/avfilter.c:507 #19 0x00000000004525c4 in av_vsink_buffer_get_video_buffer_ref (ctx=<value optimized out>, picref=0x12899d0, flags=0) at libavfilter/vsink_buffer.c:109 #20 0x0000000000405fe1 in output_packet (ist=<value optimized out>, ist_index=1, ost_table=0x12eefe0, nb_ostreams=1, pkt=<value optimized out>) at ffmpeg.c:1735 #21 0x000000000043ce58 in transcode (nb_output_files=1, input_files=0x127fcb0, nb_input_files=1, stream_maps=0x0, nb_stream_maps=<value optimized out>, output_files=0xd22960) at ffmpeg.c:2821 #22 0x0000000000438bcb in main (argc=<value optimized out>, argv=0x7fffffffdfc8) at ffmpeg.c:4578 (gdb) disass $pc-32,$pc+32 Dump of assembler code from 0x12894c0 to 0x1289500: 0x00000000012894c0: data16 0x00000000012894c1: insb (%dx),%es:(%rdi) 0x00000000012894c2: (bad) 0x00000000012894c3: addr32 jae 0x1289503 0x00000000012894c6: xor %bh,0x31(%rax) 0x00000000012894c9: add %dl,0x2c(%rdi) 0x00000000012894cc: xor %eax,(%rax) 0x00000000012894ce: add %al,(%rax) 0x00000000012894d0: add %al,(%rax) 0x00000000012894d2: add %al,(%rax) 0x00000000012894d4: add %al,(%rax) 0x00000000012894d6: add %al,(%rax) 0x00000000012894d8: roll $0x0,(%rax) 0x00000000012894db: add %al,(%rax) 0x00000000012894dd: add %al,(%rax) 0x00000000012894df: add %bh,0x0(%rdi) 0x00000000012894e2: (bad) 0x00000000012894e3: add %bh,0x0(%rdi) 0x00000000012894e6: (bad) 0x00000000012894e7: add %bh,0x0(%rdi) 0x00000000012894ea: (bad) 0x00000000012894eb: add %bh,0x0(%rdi) 0x00000000012894ee: (bad) 0x00000000012894ef: add %bh,0x0(%rdi) 0x00000000012894f2: (bad) 0x00000000012894f3: add %bh,0x0(%rdi) 0x00000000012894f6: (bad) 0x00000000012894f7: add %bh,0x0(%rdi) 0x00000000012894fa: (bad) 0x00000000012894fb: add %bh,0x0(%rdi) 0x00000000012894fe: (bad) 0x00000000012894ff: add %bh,0x0(%rdi) End of assembler dump. (gdb) info all-registers rax 0x0 0 rbx 0x129bf60 19513184 rcx 0x13122c8 19997384 rdx 0x12894e0 19436768 rsi 0x0 0 rdi 0x12a1700 19535616 rbp 0x0 0x0 rsp 0x7fffffffc370 0x7fffffffc370 r8 0x140 320 r9 0x8014 32788 r10 0x280 640 r11 0x2 2 r12 0x0 0 r13 0x0 0 r14 0x0 0 r15 0x12a1660 19535456 rip 0x12894e0 0x12894e0 eflags 0x10246 [ PF ZF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 st0 -nan(0x2f3c2f7c2f802f80) (raw 0xffff2f3c2f7c2f802f80) st1 -nan(0x2f002f002f802f80) (raw 0xffff2f002f002f802f80) st2 -inf (raw 0xffff0000000000000000) st3 -nan(0x3c007c003c007d) (raw 0xffff003c007c003c007d) st4 -nan(0x7676767676767676) (raw 0xffff7676767676767676) st5 -nan(0x7676767676767676) (raw 0xffff7676767676767676) st6 -nan(0x7676767676767676) (raw 0xffff7676767676767676) st7 -inf (raw 0xffff0000000000000000) fctrl 0x37f 895 fstat 0x20 32 ftag 0xaaaa 43690 fiseg 0x0 0 fioff 0x0 0 foseg 0x0 0 fooff 0x0 0 fop 0x0 0 xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm2 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm4 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x0}, v16_int8 = {0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x0}, v8_int16 = {0x7473, 0x6e69, 0x7461, 0x6f69, 0x206e, 0x6172, 0x676e, 0x65}, v4_int32 = {0x6e697473, 0x6f697461, 0x6172206e, 0x65676e}, v2_int64 = {0x6f6974616e697473, 0x65676e6172206e}, uint128 = 0x0065676e6172206e6f6974616e697473} xmm5 {v4_float = {0x3, 0x3, 0x3, 0x3}, v2_double = {0x20, 0x20}, v16_int8 = {0x40 <repeats 16 times>}, v8_int16 = {0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040}, v4_int32 = {0x40404040, 0x40404040, 0x40404040, 0x40404040}, v2_int64 = {0x4040404040404040, 0x4040404040404040}, uint128 = 0x40404040404040404040404040404040} xmm6 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0x5b <repeats 16 times>}, v8_int16 = { 0x5b5b, 0x5b5b, 0x5b5b, 0x5b5b, 0x5b5b, 0x5b5b, 0x5b5b, 0x5b5b}, v4_int32 = {0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b}, v2_int64 = { 0x5b5b5b5b5b5b5b5b, 0x5b5b5b5b5b5b5b5b}, uint128 = 0x5b5b5b5b5b5b5b5b5b5b5b5b5b5b5b5b} xmm7 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x20 <repeats 16 times>}, v8_int16 = {0x2020, 0x2020, 0x2020, 0x2020, 0x2020, 0x2020, 0x2020, 0x2020}, v4_int32 = {0x20202020, 0x20202020, 0x20202020, 0x20202020}, v2_int64 = {0x2020202020202020, 0x2020202020202020}, uint128 = 0x20202020202020202020202020202020} xmm8 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm9 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000}, v16_int8 = {0x0, 0x0, 0x0, 0xff <repeats 13 times>}, v8_int16 = {0x0, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xff000000, 0xffffffff, 0xffffffff, 0xffffffff}, v2_int64 = { 0xffffffffff000000, 0xffffffffffffffff}, uint128 = 0xffffffffffffffffffffffffff000000} xmm10 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x20, 0x20, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0}, v8_int16 = {0x0, 0x2020, 0x2000, 0x0, 0x0, 0x0, 0x2000, 0x0}, v4_int32 = {0x20200000, 0x2000, 0x0, 0x2000}, v2_int64 = { 0x200020200000, 0x200000000000}, uint128 = 0x00002000000000000000200020200000} xmm11 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0x0, 0x0}, v8_int16 = {0xff00, 0xffff, 0xffff, 0x0, 0x0, 0x0, 0xff00, 0x0}, v4_int32 = {0xffffff00, 0xffff, 0x0, 0xff00}, v2_int64 = { 0xffffffffff00, 0xff0000000000}, uint128 = 0x0000ff00000000000000ffffffffff00} xmm12 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x29, 0xf2, 0x88, 0x6c, 0xa6, 0x49, 0xde, 0x3e, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0xf229, 0x6c88, 0x49a6, 0x3ede, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x6c88f229, 0x3ede49a6, 0x0, 0x0}, v2_int64 = { 0x3ede49a66c88f229, 0x0}, uint128 = 0x00000000000000003ede49a66c88f229} xmm13 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0xb3, 0x12, 0x58, 0x17, 0x64, 0x46, 0xe6, 0x3b, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x12b3, 0x1758, 0x4664, 0x3be6, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x175812b3, 0x3be64664, 0x0, 0x0}, v2_int64 = { 0x3be64664175812b3, 0x0}, uint128 = 0x00000000000000003be64664175812b3} xmm14 {v4_float = {0x0, 0x3, 0x0, 0x0}, v2_double = {0x2d, 0x0}, v16_int8 = {0xc0, 0x9, 0xf2, 0x16, 0xb5, 0xdf, 0x46, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x9c0, 0x16f2, 0xdfb5, 0x4046, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x16f209c0, 0x4046dfb5, 0x0, 0x0}, v2_int64 = { 0x4046dfb516f209c0, 0x0}, uint128 = 0x00000000000000004046dfb516f209c0} xmm15 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0xa0, 0x83, 0x47, 0x3, 0x1d, 0x3c, 0x8a, 0xb5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x83a0, 0x347, 0x3c1d, 0xb58a, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x34783a0, 0xb58a3c1d, 0x0, 0x0}, v2_int64 = { 0xb58a3c1d034783a0, 0x0}, uint128 = 0x0000000000000000b58a3c1d034783a0} mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ] }}} Maybe some assembler god can take a look at this, my brain melted while trying to understand this asm-and-macro jungle ;) I did a git bisect to find the place where it broke, but only ended up at commit e66149e714006d099d1ebfcca3f22ca74fc7dcf4 - I suspect it was broken before that commit, but somehow the detection choose another path for my CPU before that point. Here is my CPU info: {{{ vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : AMD Phenom(tm) 9950 Quad-Core Processor stepping : 3 cpu MHz : 2600.000 cache size : 512 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock bogomips : 5217.61 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate }}} But I first observed the problem on an Intel Atom D510. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/397> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 9

#187(undetermined:new): 3GP/MP4 performance regression
by FFmpeg 10 Jun '13

10 Jun '13

#187: 3GP/MP4 performance regression --------------------------+-------------------------- Reporter: jsd | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- Download source file from here: http://tm-west.s3.amazonaws.com/2423.mp4 (74MB) I have a fairly old build of ffmpeg - FFmpeg version SVN-r24841, Copyright (c) 2000-2010 the FFmpeg developers built on Aug 19 2010 16:20:28 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48) With the following command line, it processes this particular MP4 file acceptably fast (about 90 seconds) /usr/local/bin/ffmpeg -i 2423.mp4 -s 480x352 -vcodec libx264 -acodec libfaac -vpre fast -b 300k -bt 300k -threads 0 2423.mp4.mp4 The last line from ffmpeg is: frame= 5235 fps= 64 q=-1.0 Lsize= 7171kB time=175.40 bitrate= 334.9kbits/s I built ffmpeg from the latest tarball today and something has happened so that it runs incredibly slowly and eventually gives up. /usr/local/bin/ffmpeg -loglevel quiet -v 0 -i /tmp/videoproc-11865/2423.mp4 -s 480x352 -an -pass 1 -vcodec libx264 -vpre fast_firstpass -b 300k -bt 300k -threads 0 /tmp/videoproc-11865/2423.mp4.mp4 ffmpeg version UNKNOWN, Copyright (c) 2000-2011 the FFmpeg developers built on May 5 2011 11:01:27 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48) configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libx264 --enable-pthreads --enable-static --disable-shared --disable-network --enable-nonfree libavutil 51. 2. 0 / 51. 2. 0 libavcodec 53. 3. 0 / 53. 3. 0 libavformat 53. 0. 3 / 53. 0. 3 libavdevice 53. 0. 0 / 53. 0. 0 libavfilter 2. 4. 0 / 2. 4. 0 libswscale 0. 14. 0 / 0. 14. 0 Seems stream 1 codec frame rate differs from container frame rate: 60000.00 (60000/1) -> 30000.00 (60000/2) Stream mapping: Stream #0.1 -> #0.0 Press [q] to stop encoding sh: line 1: 11883 File size limit exceeded It took 2 hrs and 11 minutes for that command to run and fail. -- Ticket URL: <http://ffmpeg.org/trac/ffmpeg/ticket/187> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 11

#258(avformat:new): RTP over UDP: doesn't reorder packets
by FFmpeg 02 Jun '13

02 Jun '13

#258: RTP over UDP: doesn't reorder packets -------------------------+------------------------- Reporter: Andrew | Type: defect Status: new | Priority: normal Component: avformat | Version: git-master Keywords: RTP reorder | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | -------------------------+------------------------- muxonly.c source ... ic = avformat_alloc_context(); ic->preload = 1000000; // 1 sec ic->max_delay = 3000000; // 5 sec ap.prealloced_context = 1; ret = av_open_input_file(&ic, argv[1], NULL, 0, &ap); ... while () av_read_frame() ... libavformat/rtpdec.h -#define RTP_REORDER_QUEUE_DEFAULT_SIZE 10 +#define RTP_REORDER_QUEUE_DEFAULT_SIZE 50 ./muxonly 'rtsp://axis1031:554/axis- media/media.amp?video=1&audio=0&videocodec=mpeg4' mov /tmp/test.mov SDP: v=0 o=- 1306917023786450 1306917023786450 IN IP4 axis1031 s=Media Presentation e=NONE c=IN IP4 0.0.0.0 b=AS:8000 t=0 0 a=control:rtsp://axis1031:554/axis- media/media.amp?video=1&audio=0&videocodec=mpeg4 a=range:npt=0.000000- m=video 0 RTP/AVP 96 b=AS:8000 a=framerate:30.0 a=transform:1,0,0;0,1,0;0,0,1 a=control:rtsp://axis1031:554/axis- media/media.amp/trackID=1?video=1&audio=0&videocodec=mpeg4 a=rtpmap:96 MP4V-ES/90000 a=fmtp:96 profile-level-id=245; config=000001B0F5000001B50ECF000001000000012000C88D881F4514043C14103F video codec set to: mpeg4 hello state=0 RTP: missed 3 packets RTP: missed 2 packets RTP: missed 2 packets RTP: missed 1 packets RTP: missed 3 packets RTP: missed 5 packets RTP: missed 2 packets RTP: missed 2 packets RTP: missed 3 packets RTP: missed 4 packets RTP: missed 3 packets RTP: missed 1 packets RTP: missed 5 packets RTP: missed 3 packets RTP: missed 4 packets RTP: missed 4 packets RTP: missed 4 packets RTP: missed 7 packets RTP: missed 4 packets RTP: missed 4 packets RTP: missed 4 packets RTP: missed 6 packets RTP: missed 3 packets RTP: missed 4 packets RTP: missed 6 packets RTP: missed 2 packets RTP: missed 4 packets RTP: missed 5 packets RTP: missed 3 packets RTP: missed 3 packets RTP: missed 2 packets RTP: missed 3 packets RTP: missed 2 packets RTP: missed 5 packets RTP: missed 3 packets RTP: missed 13 packets RTP: missed 29 packets RTP: missed 12 packets RTP: missed 28 packets RTP: missed 3 packets RTP: missed 15 packets RTP: missed 7 packets RTP: missed 8 packets RTP: missed 14 packets RTP: missed 2 packets RTP: missed 9 packets RTP: missed 21 packets RTP: missed 5 packets RTP: missed 28 packets RTP: missed 9 packets RTP: missed 5 packets RTP: missed 8 packets RTP: missed 17 packets RTP: missed 46 packets RTP: missed 3 packets RTP: missed 4 packets RTP: missed 3 packets RTP: missed 1 packets RTP: missed 4 packets RTP: missed 3 packets RTP: missed 2 packets RTP: missed 3 packets RTP: missed 1 packets RTP: missed 5 packets All info found Estimating duration from bitrate, this may be inaccurate Input #0, rtsp, from 'rtsp://axis1031:554/axis- media/media.amp?video=1&audio=0&videocodec=mpeg4': Metadata: title : Media Presentation Duration: N/A, start: 3.690289, bitrate: N/A Stream #0.0, 22, 1/90000: Video: mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 1k tbr, 90k tbn, 1k tbc AVFormatContext: start_time = 3690289 (1/1000000) 3.690 sec AVStream: start_time = 332126 (1/90000) 3.690 sec, first_dts = 332126 3.690 sec Output #0, mov, to '/tmp/test.mov': Stream #0.0, 0, 1/90000: Video: mpeg4, yuv420p, 640x480, q=2-31, 90k tbn, 90k tbc Output #0, mov, to '/tmp/test.mov': Metadata: encoder : Lavf53.2.0 Stream #0.0, 0, 1/90000: Video: mpeg4, yuv420p, 640x480, q=2-31, 90k tbn, 90k tbc -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/258> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 5

#419(undetermined:new): rtsp:// doesn't support any port number other than 80
by FFmpeg 02 Jun '13

02 Jun '13

#419: rtsp:// doesn't support any port number other than 80 --------------------------+-------------------------- Reporter: uscgraphics | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- rtsp:// doesn't support any port number other than 80 for tcp and udp (http works fine). e.g. rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?tcp will return [rtsp @ 0057B0E0] CSeq 1 expected, 0 received. [rtsp @ 0057B0E0] method OPTIONS failed: 501 Not Implemented [rtsp @ 0057B0E0] Date: Wed, 03 Aug 2011 19:18:56 GMT Accept-Ranges: bytes Connection: close Content-Type: text/html; charset=ISO-8859-1 rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?tcp : Invalid data found when processing input Using rtsp://xxx.xxx.xxx.xxx:8080/axis-media/media.amp?http works great. -- Ticket URL: <http://avcodec.org/trac/ffmpeg/ticket/419> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#24(FFmpeg:new): Error message needed when enabling drawtext filter without libfreetype
by FFmpeg 02 Jun '13

02 Jun '13

#24: Error message needed when enabling drawtext filter without libfreetype -------------------------+------------------------------------------------- Reporter: xj25vm | Owner: michael Type: | Status: new enhancement | Component: FFmpeg Priority: normal | Keywords: configure libfreetype drawtext Version: git | filter Blocked By: | Blocking: Reproduced: 0 | Analyzed: 0 -------------------------+------------------------------------------------- It would be really helpful if the configure script would issue an error message when trying to do "--enable-filter=drawtext" without adding "--enable-libfreetype". At the moment, there is no error message, and the drawtext filter doesn't get enabled. The documentation of the drawtext filter does mention then libfreetype is needed - but it would be much more helpful if the configure script would do this check. Otherwise one would have no idea why the filter silently refuses to enable with no error message. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/24> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 2