[FFmpeg-trac] #1573(undetermined:new): Enhancing -ss option
FFmpeg
trac at avcodec.org
Sun Oct 7 03:28:58 CEST 2012
#1573: Enhancing -ss option
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Reporter: burek | Owner:
Type: enhancement | Status: new
Priority: wish | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by jbvsmo):
Hi, I'm working on a project with multiple ffmpeg processes converting
parts of a video at the same time and the speedups I'm achieving are
amazing.
But, for this to work, I rely on fast seek, otherwise the slow seek makes
the method useless. The problem is that
{{{
ffmpeg -ss time -i input -ss 0 output
}}}
doesn't always give me the right frame!
I found in the mail list ([http://ffmpeg.org/pipermail/ffmpeg-
user/2012-August/008767.html here] and [http://ffmpeg.org/pipermail
/ffmpeg-user/2012-August/008769.html here]) that ffmpeg may reach a frame
after the specified time and never go back.
Are there any chances of a really accurate and fast seek in a single
option? BTW, seek by frame number is possible?
The ffmpeg version I'm using is from git on September 12 (2 weeks before
ffmpeg 1.0).
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1573#comment:5>
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