[FFmpeg-trac] #8870(undetermined:new): How to use AVIO_FLAG_DIRECT
FFmpeg
trac at avcodec.org
Thu Aug 27 13:00:45 EEST 2020
#8870: How to use AVIO_FLAG_DIRECT
-------------------------------------+-------------------------------------
Reporter: str | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
I want to reduce buffering overhead when using avio_open2/av_write_frame
API.
How to reproduce:
{{{
avio_open2(formatContext->pb, "test.avi", AVIO_FLAG_WRITE |
AVIO_FLAG_DIRECT, 0, 0);
av_write_frame(formatContext, avPacket); //return -5 if avpack.size >
262144
I found that is due to line 241 in file.c where this value is set. In line
425 in file avio.c is this value compared to input size and fails if size
> 262144. Is there any way to workaround this?
ffmpeg version
built on 4.3.1
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8870>
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