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

Re: [FFmpeg-trac] #1878(undetermined:new): Seeking causes later packets to be thrown away
by FFmpeg 02 Nov '12

02 Nov '12

#1878: Seeking causes later packets to be thrown away -------------------------------------+------------------------------------- Reporter: mbradshaw | Owner: Type: defect | Status: new Priority: normal | Component: Version: git-master | undetermined Keywords: seek | Resolution: Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Changes (by cehoyos): * keywords: => seek -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1878#comment:1> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 0

#1170(avformat:new): asf sub index seeking
by FFmpeg 02 Nov '12

02 Nov '12

#1170: asf sub index seeking -------------------------------------+------------------------------------- Reporter: michael | Owner: Type: | Status: new enhancement | Component: avformat Priority: wish | Keywords: asf random Version: git- | access master | Blocking: Blocked By: | Analyzed by developer: 0 Reproduced by developer: 0 | -------------------------------------+------------------------------------- The index in asf files does not index all keyframes and is not very fine grained. Binary search should be used in addition to using the index so as to allow frame accurate seeking in asf. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1170> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 2

#1880(FFmpeg:new): How to cut a video part and also convert video file format.
by FFmpeg 02 Nov '12

02 Nov '12

#1880: How to cut a video part and also convert video file format. -------------------------------------+------------------------------------- Reporter: ramesh1482 | Type: defect Status: new | Priority: critical Component: FFmpeg | Version: 1.0 Keywords: Cut video | Blocked By: files and convert the video | Reproduced by developer: 1 format | Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug:I need to cut a part of video file by giving the time duration and also to convert the video file format. How to reproduce: {{{ ffmpeg -ss 00:00:30.0 -t 00:00:10.0 -i input.wmv -acodec copy -vcodec copy -async 1 output.wmv ffmpeg version: 1.0 }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1880> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#1879(FFmpeg:new): Command line to compress all the video file formats
by FFmpeg 02 Nov '12

02 Nov '12

#1879: Command line to compress all the video file formats -------------------------------------+------------------------------------- Reporter: ramesh1482 | Type: defect Status: new | Priority: critical Component: FFmpeg | Version: 1.0 Keywords: Compress | Blocked By: video files for all the format | Reproduced by developer: 1 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: I am not able to compress video files other than .avi and mp4 video file format. Please provide the exact ffmpeg command line to compress the video file. How to reproduce: {{{ ffmpeg -i input.avi -vcodec msmpeg4v2 output.avi ffmpeg version:1.0 }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1879> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#1877(avfilter:new): filter to seek to X frame to start encoding from
by FFmpeg 02 Nov '12

02 Nov '12

#1877: filter to seek to X frame to start encoding from ---------------------------------------+---------------------------------- Reporter: compn | Owner: Type: enhancement | Status: new Priority: wish | Component: avfilter Version: git-master | Keywords: Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 ---------------------------------------+---------------------------------- a lot of users want a feature where they can specify the exact frame to start encoding from. like ffmpeg -ss:f 344 -i input.avi i was thinking this could be done as a filter, and it would silently drop frames until it hit frame 344. mp framestep can be modified to do this , instead of continually seeking to the next frame, it can be set to only seek once. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1877> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#1811(avformat:new): Transport stream with intentional garbage in the beginning is detected as program stream
by FFmpeg 01 Nov '12

01 Nov '12

#1811: Transport stream with intentional garbage in the beginning is detected as program stream -------------------------------------+------------------------------------- Reporter: cehoyos | Owner: Type: defect | Status: new Priority: normal | Component: avformat Version: git- | Keywords: mpegts master | mpegps Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 -------------------------------------+------------------------------------- http://ffmpeg.org/pipermail/ffmpeg-user/2012-October/010297.html Transport streams recorded with Belson TV sets (on USB) start with garbage, FFmpeg detects a program stream instead of a transport stream. {{{ $ ffmpeg -i misdetectionps.ts ffmpeg version N-45422-g6254ffe Copyright (c) 2000-2012 the FFmpeg developers built on Oct 13 2012 12:00:13 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 51. 76.100 / 51. 76.100 libavcodec 54. 65.100 / 54. 65.100 libavformat 54. 32.100 / 54. 32.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 19.102 / 3. 19.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 16.100 / 0. 16.100 libpostproc 52. 1.100 / 52. 1.100 [mpeg @ 0x3201280] Format mpeg detected only with low score of 25, misdetection possible! [mpeg @ 0x3201280] probed stream 1 failed [mpeg @ 0x3201280] probed stream 5 failed [mpeg @ 0x3201280] probed stream 6 failed [mpeg @ 0x3201280] probed stream 7 failed [mpeg @ 0x3201280] Invalid timestamps stream=1, pts=852695377, dts=5539292435, size=34318 [mp1 @ 0x3248ca0] Header missing Last message repeated 3 times [mpeg @ 0x3201280] Invalid timestamps stream=2, pts=2897908561, dts=4977112148, size=30969 [mpeg @ 0x3201280] DTS discontinuity in stream 2: packet 56 with DTS 2897947441, packet 57 with DTS 3620529164 [mp1 @ 0x3248ca0] Header missing [mpeg @ 0x3201280] Could not find codec parameters for stream 1 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] decoding for stream 4 failed [mpeg @ 0x3201280] Could not find codec parameters for stream 4 (Audio: mp1, 0 channels, s16): unspecified frame size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 5 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 6 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpeg @ 0x3201280] Could not find codec parameters for stream 7 (Video: none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options [NULL @ 0x323e280] start time is not set in estimate_timings_from_pts [NULL @ 0x325ffa0] start time is not set in estimate_timings_from_pts [NULL @ 0x3290b20] start time is not set in estimate_timings_from_pts [NULL @ 0x32c0600] start time is not set in estimate_timings_from_pts Input #0, mpeg, from 'misdetectionps.ts': Duration: 08:32:34.86, start: 9474.393078, bitrate: 0 kb/s Stream #0:0[0x1c2]: Audio: mp2, 48000 Hz, stereo, s16, 192 kb/s Stream #0:1[0x1e1]: Video: none, 90k tbr, 90k tbn Stream #0:2[0x1c0]: Audio: mp3, 48000 Hz, stereo, s16, 192 kb/s Stream #0:3[0x20]: Subtitle: dvd_subtitle Stream #0:4[0x1c5]: Audio: mp1, 0 channels, s16 Stream #0:5[0x1eb]: Video: none, 90k tbr, 90k tbn Stream #0:6[0x1ea]: Video: none, 90k tbr, 90k tbn Stream #0:7[0x1e0]: Video: none, 90k tbr, 90k tbn At least one output file must be specified }}} The sample gets detected correctly with ffmpeg -f mpegts, I will open another ticket for the image corruption shown on transcoding the sample. {{{ $ ffmpeg -f mpegts -i misdetectionps.ts ffmpeg version N-45422-g6254ffe Copyright (c) 2000-2012 the FFmpeg developers built on Oct 13 2012 12:00:13 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 51. 76.100 / 51. 76.100 libavcodec 54. 65.100 / 54. 65.100 libavformat 54. 32.100 / 54. 32.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 19.102 / 3. 19.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 16.100 / 0. 16.100 libpostproc 52. 1.100 / 52. 1.100 [mpegts @ 0x332b2a0] Could not detect TS packet size, defaulting to non- FEC/DVHS [mpeg2video @ 0x334da40] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x332b2a0] PES packet size mismatch [mpeg2video @ 0x334da40] mpeg_decode_postinit() failure [mpeg2video @ 0x334da40] skipped MB in I frame at 5 7 [mpeg2video @ 0x334da40] ac-tex damaged at 5 19 [mpeg2video @ 0x334da40] Warning MVs not available [mpeg2video @ 0x334da40] concealing 90 DC, 90 AC, 90 MV errors in I frame [mpegts @ 0x332b2a0] PES packet size mismatch Last message repeated 6 times [mpegts @ 0x332b2a0] Could not find codec parameters for stream 4 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 5 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 6 (Unknown: none ([12][0][0][0] / 0x000C)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 7 (Unknown: none ([255][0][0][0] / 0x00FF)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [mpegts @ 0x332b2a0] Could not find codec parameters for stream 8 (Unknown: none ([255][0][0][0] / 0x00FF)): unknown codec Consider increasing the value for the 'analyzeduration' and 'probesize' options [NULL @ 0x336de60] start time is not set in estimate_timings_from_pts [NULL @ 0x3374320] start time is not set in estimate_timings_from_pts [NULL @ 0x337a7e0] start time is not set in estimate_timings_from_pts [NULL @ 0x3380ca0] start time is not set in estimate_timings_from_pts [NULL @ 0x3387160] start time is not set in estimate_timings_from_pts [mpegts @ 0x332b2a0] PES packet size mismatch Last message repeated 2 times Input #0, mpegts, from 'misdetectionps.ts': Duration: 00:00:04.36, start: 40225.173822, bitrate: 4689 kb/s Program 257 Metadata: service_name : France 2 service_provider: GR1 A Program 260 Metadata: service_name : France 5 service_provider: GR1 A Stream #0:0[0x140]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 15000 kb/s, 25.25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x14a](fra): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 192 kb/s Stream #0:2[0x14b](qad): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16, 192 kb/s Stream #0:3[0x154](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired) Stream #0:4[0x172]: Unknown: none ([5][0][0][0] / 0x0005) Stream #0:5[0x173]: Unknown: none ([11][0][0][0] / 0x000B) Stream #0:6[0x174]: Unknown: none ([12][0][0][0] / 0x000C) Stream #0:7[0x175]: Unknown: none ([255][0][0][0] / 0x00FF) Stream #0:8[0x176]: Unknown: none ([255][0][0][0] / 0x00FF) Program 261 Metadata: service_name : ?France [0m service_provider: GR1 A Program 262 Metadata: service_name : LCP service_provider: GR1 A Program 282 Metadata: service_name : France 3 service_provider: Nat Program 368 Metadata: service_name : TLT service_provider: Scopus Network Technologies At least one output file must be specified }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1811> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 1

#1800(undetermined:new): video downloaded from iTunes do not work
by FFmpeg 01 Nov '12

01 Nov '12

#1800: video downloaded from iTunes do not work -------------------------------------+------------------------------------- Reporter: raffairon | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- I have downloaded a video from itunes. The video has .m4v extension and according to MediaVideo is in some type of AVC/AAC format. Nor VLC neither Windows Media PLayer can play that video. The only one that can play the video and do it correctly is QuickTime 7 from Apple. I want to convert it into MPEG2 as video and mp3 as audio, but i have failed both with FFMPEG and with MEncoder. I have also tried to compile ffmpeg from source, but I do not know which codec I need and I don't want to compile all the codecs from scratch. I have uploaded the video on your FTP server. THe filename is "Love Thy Brother.m4v". There IS the correspondending text file. I attach here: 1) Mediainfo informations given on the video 2) ffmpeg command line 3) full FFMPEG console output -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1800> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 7

#1813(avfilter:new): ASS filter does not accept filenames with '
by FFmpeg 01 Nov '12

01 Nov '12

#1813: ASS filter does not accept filenames with ' ----------------------------------+---------------------------------- Reporter: Atarikid | Type: defect Status: new | Priority: normal Component: avfilter | Version: 1.0 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+---------------------------------- When using a filename including the character ' within the .ass filename FFmpeg gives an error 'Error opening filter' Example with escaping -vf ass="/Volumes/Data/Movies/Crime\ d\'Amour.srt" or without escaping: -vf ass="/Volumes/Data/Movies/Crime d'Amour.srt" Both gives an error. When removing the ' character (and renaming the file to Crime dAmour.srt) it works fine. I did not test this with other filters (watermark etc..) but I guess it the same would happen. BTW with FFmpeg 1.0 compiled to OS X -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1813> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 8

#1853(swscale:new): libswscale writes past scanline end
by FFmpeg 01 Nov '12

01 Nov '12

#1853: libswscale writes past scanline end ---------------------------------+--------------------------------------- Reporter: gjdfgh | Type: defect Status: new | Priority: normal Component: swscale | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+--------------------------------------- libswscale sometimes writes to the memory past the end of each scanline, into the space between end of scanline and start of the next pixel, or in other words, it overwrites pixels between (dstw, y) and (0, y+1). Often, this memory is just padding to satisfy alignment constraints on strides, but there are use cases where it's reasonable to expect that pixels outside the specified destination width should not be overwritten. For example, the destination image could be set up as cropped region of a larger image, and the regions of the larger images not covered by the destination region should not be overwritten. I suspect this bug/caveat happens due to use of SIMD to work on multiple pixels at once. libswscale should just use an unaccelerated code path to handle trailing pixels. This happens at least with PIX_FMT_BGRA. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1853> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 5