[FFmpeg-devel] [PATCH v3 0/8] add fd protocol

Xiang, Haihao haihao.xiang at intel.com
Wed Jan 11 09:53:02 EET 2023


On Wo, 2023-01-11 at 11:18 +0800, zhilizhao(赵志立) wrote:
> > On Jan 9, 2023, at 11:17, zhilizhao(赵志立) <quinkblack at foxmail.com> wrote:
> > 
> > > On Dec 15, 2022, at 01:10, Zhao Zhili <quinkblack at foxmail.com> wrote:
> > > 
> > > From: Zhao Zhili <zhilizhao at tencent.com>
> > > 
> > > v2:
> > > 1. Forbid pass file descriptor via fd:{num}, instead of -fd option
> > > 2. Set CLOEXEC
> > > 3. Prefer fd over pipe for fftools
> > > 
> > > v1: dup file descriptor
> > > 
> > > Zhao Zhili (8):
> > > avformat/file: add fd option for pipe
> > > avformat/file: reindent after the previous commit
> > > avformat/file: dup file descriptor for pipe
> > > avformat/file: add fd protocol
> > > fftools/ffmpeg_demux: disable stdin interaction for fd protocol
> > > fftools/ffplay: prefer fd over pipe for seek support
> > > fftools/ffprobe: prefer fd over pipe for seek support
> > > fftools/ffmpeg_demux: prefer fd over pipe for seek support
> > > 
> > > doc/protocols.texi      |  31 +++++++-
> > > fftools/ffmpeg_demux.c  |   3 +-
> > > fftools/ffplay.c        |   2 +-
> > > fftools/ffprobe.c       |   4 +-
> > > libavformat/Makefile    |   1 +
> > > libavformat/file.c      | 152 +++++++++++++++++++++++++++++++---------
> > > libavformat/protocols.c |   1 +
> > > libavformat/version.h   |   4 +-
> > > 8 files changed, 156 insertions(+), 42 deletions(-)
> > 
> > Will apply soon unless there are objections.
> 
> Pushed.

It caused link error on Windows

INFO  - LD    libavformat/avformat-59.dll
INFO  -    Creating library libavformat/avformat.lib and object
libavformat/avformat.exp
INFO  - file.o : error LNK2019: unresolved external symbol S_ISREG referenced in
function fd_open
INFO  - file.o : error LNK2019: unresolved external symbol S_ISBLK referenced in
function fd_open
INFO  - libavformat\avformat-59.dll : fatal error LNK1120: 2 unresolved
externals

Thanks
Haihao

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