#1616: bad seek in WMV2 file -------------------------------------+------------------------------------- Reporter: DonMoir | Owner: Type: defect | Status: open Priority: normal | Component: Version: git-master | undetermined Keywords: asf wmv2 | Resolution: seek | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by cehoyos): * keywords: => asf wmv2 seek * status: new => open * version: unspecified => git-master * reproduced: 0 => 1 Old description:

Sample file:

http://sms.pangolin.com/temp/bad_seek_wmv2.wmv (3 mb)

If you do ffplay -ss 7 bad_seek_wmv2.wmv it works correctly.

But ffplay -ss 8 bad_seek_wmv2.wmv will fail with gray frame.

For my app, I see corruption and not gray.

VLC has a bit of a problem with it but not as bad.

WMP gets it perfect.

With the following you will get a gray frame and a warning about first frame is not keyframe. The first frame is a keyframe but maybe not the one it seeked to.

ffplay -ss 8 CreaToon3.wmv ffplay version N-43206-gf857465 Copyright (c) 2003-2012 the FFmpeg developers built on Aug 4 2012 16:12:33 with gcc 4.7.1 (GCC) configuration: --disable-static --enable-shared --enable-gpl --enable- version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore- amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable- libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo- aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable- libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 51. 66.100 / 51. 66.100 libavcodec 54. 49.100 / 54. 49.100 libavformat 54. 22.100 / 54. 22.100 libavdevice 54. 2.100 / 54. 2.100 libavfilter 3. 5.102 / 3. 5.102 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, asf, from 'CreaToon3.wmv': Metadata: title : CreaToon 3 artist : ANIMANTE BALEARES S.L. copyright : ANIMANTE BALEARES S.L. 2004 WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 Duration: 00:00:42.23, start: 0.000000, bitrate: 664 kb/s Stream #0:0(spa): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 1 channels, s16, 20 kb/s Stream #0:1(spa): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 640x480, 671 kb/ s, 25 tbr, 1k tbn, 1k tbc [asf @ 012a04a0] ignoring invalid packet_obj_size (15 116 116 310) [asf @ 012a04a0] freeing incomplete packet size 310, new 1580 1344327525.2[wmv2 @ 012a7060] 2 warning: '''first frame is no keyframe''' Frame changed from size:0x0 to size:640x480q= 0B f=0/0 29.51 A-V: 0.186 fd= 163 aq= 5KB vq= 83KB sq= 0B f=0/0

New description: Sample file: http://sms.pangolin.com/temp/bad_seek_wmv2.wmv (3 mb) If you do ffplay -ss 7 bad_seek_wmv2.wmv it works correctly. But ffplay -ss 8 bad_seek_wmv2.wmv will fail with gray frame. For my app, I see corruption and not gray. VLC has a bit of a problem with it but not as bad. WMP gets it perfect. With the following you will get a gray frame and a warning about first frame is not keyframe. The first frame is a keyframe but maybe not the one it seeked to. {{{ ffplay -ss 8 CreaToon3.wmv ffplay version N-43206-gf857465 Copyright (c) 2003-2012 the FFmpeg developers built on Aug 4 2012 16:12:33 with gcc 4.7.1 (GCC) configuration: --disable-static --enable-shared --enable-gpl --enable- version3 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore- amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable- libmp3lame --enable-libnut --enable-libopenjpeg --enable-librtmp --enable- libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvo- aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable- libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 51. 66.100 / 51. 66.100 libavcodec 54. 49.100 / 54. 49.100 libavformat 54. 22.100 / 54. 22.100 libavdevice 54. 2.100 / 54. 2.100 libavfilter 3. 5.102 / 3. 5.102 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, asf, from 'CreaToon3.wmv': Metadata: title : CreaToon 3 artist : ANIMANTE BALEARES S.L. copyright : ANIMANTE BALEARES S.L. 2004 WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 Duration: 00:00:42.23, start: 0.000000, bitrate: 664 kb/s Stream #0:0(spa): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 1 channels, s16, 20 kb/s Stream #0:1(spa): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 640x480, 671 kb/ s, 25 tbr, 1k tbn, 1k tbc [asf @ 012a04a0] ignoring invalid packet_obj_size (15 116 116 310) [asf @ 012a04a0] freeing incomplete packet size 310, new 1580 1344327525.2[wmv2 @ 012a7060] 2 warning: '''first frame is no keyframe''' Frame changed from size:0x0 to size:640x480q= 0B f=0/0 29.51 A-V: 0.186 fd= 163 aq= 5KB vq= 83KB sq= 0B f=0/0 }}} -- Comment: Please remember to only report problems for ffplay if they are not reproducible with ffmpeg (and that means that whenever a ticket for ffplay is reported, some implicit or explicit reason is needed why the ticket is not reported for ffmpeg). The two reasons are that bugs are much more difficult to reproduce with ffplay and that ffplay depends on an external library that is known to contain bugs. {{{ $ ffmpeg -ss 8 -i bad_seek_wmv2.wmv out.png ffmpeg version N-43291-gcf753d5 Copyright (c) 2000-2012 the FFmpeg developers built on Aug 7 2012 07:51:32 with gcc 4.3.2 (GCC) configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable- libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs --enable-x11grab --enable-libass --enable-nonfree --enable-libfaac --enable-libopus --enable-libfdk-aac libavutil 51. 66.101 / 51. 66.101 libavcodec 54. 50.100 / 54. 50.100 libavformat 54. 22.101 / 54. 22.101 libavdevice 54. 2.100 / 54. 2.100 libavfilter 3. 5.102 / 3. 5.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 Guessed Channel Layout for Input Stream #0.0 : mono Input #0, asf, from 'bad_seek_wmv2.wmv': Metadata: title : CreaToon 3 artist : ANIMANTE BALEARES S.L. copyright : ANIMANTE BALEARES S.L. 2004 WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 Duration: 00:00:42.23, start: 0.000000, bitrate: 664 kb/s Stream #0:0(spa): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, mono, s16, 20 kb/s Stream #0:1(spa): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 640x480, 671 kb/s, 25 tbr, 1k tbn, 1k tbc Output #0, image2, to 'out.png': Metadata: title : CreaToon 3 artist : ANIMANTE BALEARES S.L. copyright : ANIMANTE BALEARES S.L. 2004 WMFSDKVersion : 9.00.00.2980 WMFSDKNeeded : 0.0.0.0000 IsVBR : 0 encoder : Lavf54.22.101 Stream #0:0(spa): Video: png, rgb24, 640x480, q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:1 -> #0:0 (wmv2 -> png) Press [q] to stop, [?] for help [asf @ 0x9115500] ignoring invalid packet_obj_size (15 116 116 310) [asf @ 0x9115500] freeing incomplete packet size 310, new 1580 [wmv2 @ 0x911c7c0] warning: first frame is no keyframe [image2 @ 0x910f960] Could not get frame filename number 2 from pattern 'out.png' av_interleaved_write_frame(): Invalid argument }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1616#comment:1> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

#1616: bad seek in WMV2 file -------------------------------------+------------------------------------- Reporter: DonMoir | Owner: Type: defect | Status: open Priority: normal | Component: Version: git-master | undetermined Keywords: asf wmv2 | Resolution: seek | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Comment (by DonMoir): In my own app, I only see a problem when seeking near 18 seconds. It's like a bad index entry is being added. I can seek somewhat before 18 seconds and somewhat after and it's all good. Just the time around when the plane is visible seems to be a problem for me. So around 17 to 21 seconds. Here's an image of what I see. It should be all blue sky around the plane but there are yellow artifacts from previous frame. http://sms.pangolin.com/temp/bad_seek_wmv2_at_18_sec.png -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1616#comment:3> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

#1616: bad seek in WMV2 file -------------------------------------+------------------------------------- Reporter: DonMoir | Owner: Type: defect | Status: closed Priority: normal | Component: Version: git-master | undetermined Keywords: asf wmv2 | Resolution: fixed seek | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Changes (by michael): * status: open => closed * resolution: => fixed -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1616#comment:5> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker