[FFmpeg-trac] #2145(avformat:new): avi files >1G do not seek with WMP
FFmpeg
trac at avcodec.org
Tue May 13 07:38:34 CEST 2014
#2145: avi files >1G do not seek with WMP
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Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: avi | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by rupa):
Replying to [ticket:2145 cehoyos]:
I am also facing similar issue when I try to play the AVI files that are
bigger than 1 GB in Windows Media Player.
My AVI files have following configuration:
-MJPEG Video 960x720 at 26fps
-PCM Audio 16 bits/16KHz/1 channel
Please let me know if there is any fix available for this issue ?
> (bug 194)
> If an avi output file is bigger than ~1G, the file starts to play fine
with WMP, but seeking is impossible, this works fine if the file is
remuxed with MEncoder.
>
> The following file plays fine with WMP, seeking works as expected:
> {{{
> $ ffmpeg -f lavfi -i testsrc=s=pal -f s16le -ac 2 -ar 48k -i /dev/zero
-vcodec dvvideo -acodec pcm_s16le -fs 900M out09.avi
> }}}
> The following file also plays fine with WMP, playback stops when the
user tries to seek:
> {{{
> $ ffmpeg -f lavfi -i testsrc=s=pal -f s16le -ac 2 -ar 48k -i /dev/zero
-vcodec dvvideo -acodec pcm_s16le -fs 1100M out11.avi
> ffmpeg version N-48954-g06af724 Copyright (c) 2000-2013 the FFmpeg
developers
> built on Jan 16 2013 12:08:10 with gcc 4.7 (SUSE Linux)
> configuration: --enable-gpl --disable-indev=jack
> libavutil 52. 15.100 / 52. 15.100
> libavcodec 54. 89.100 / 54. 89.100
> libavformat 54. 60.101 / 54. 60.101
> libavdevice 54. 3.102 / 54. 3.102
> libavfilter 3. 32.100 / 3. 32.100
> libswscale 2. 1.103 / 2. 1.103
> libswresample 0. 17.102 / 0. 17.102
> libpostproc 52. 2.100 / 52. 2.100
> [lavfi @ 0x2539940] Estimating duration from bitrate, this may be
inaccurate
> Input #0, lavfi, from 'testsrc=s=pal':
> Duration: N/A, start: 0.000000, bitrate: N/A
> Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 720x576
[SAR 1:1 DAR 5:4], 25 tbr, 25 tbn, 25 tbc
> [s16le @ 0x253b0c0] max_analyze_duration 5000000 reached at 5013333
microseconds
> [s16le @ 0x253b0c0] Estimating duration from bitrate, this may be
inaccurate
> Guessed Channel Layout for Input Stream #1.0 : stereo
> Input #1, s16le, from '/dev/zero':
> Duration: N/A, bitrate: 1536 kb/s
> Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
> Output #0, avi, to 'out11.avi':
> Metadata:
> ISFT : Lavf54.60.101
> Stream #0:0: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576
[SAR 1:1 DAR 5:4], q=2-31, 200 kb/s, 25 tbn, 25 tbc
> Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s
> Stream mapping:
> Stream #0:0 -> #0:0 (rawvideo -> dvvideo)
> Stream #1:0 -> #0:1 (pcm_s16le -> pcm_s16le)
> Press [q] to stop, [?] for help
> frame= 7248 fps=431 q=0.0 Lsize= 1074263kB time=00:04:49.92
bitrate=30354.5kbits/s
> video:1019250kB audio:54360kB subtitle:0 global headers:0kB muxing
overhead 0.060863%
> }}}
> The file can be "fixed" with the following MEncoder command line:
> {{{
> $ mencoder out11.avi -ovc copy -oac copy -o outmenc.avi
> }}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/2145#comment:9>
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