[FFmpeg-user] FFmpeg Library

[Satinder Singh]

yes , I use above gcc syntax :

gcc -g doc/examples/muxing.c -o muxing  -lavcodec -lavdevice -lavfilter
-lavformat -lavutil -lswscale -lswresample -lpostproc -lx264 -lmp3lame -lz
-liconv -lbz2

but again I got maximum errors , Can anybody help me and give proper
procedure to use ffmpeg API in my C program .

On Thu, Sep 17, 2015 at 2:26 PM, Clément Bœsch <u at pkh.me> wrote:

> On Thu, Sep 17, 2015 at 04:47:48PM +0800, Steven Liu wrote:
> > You can reference the doc/example file makefile
> >
> > gcc -I. -I./ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DZLIB_CONST -std=c99
> > -fomit-frame-pointer -pthread   -g -Wdeclaration-after-statement -Wall
> > -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings
> > -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast
> > -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch
> > -Wno-format-zero-length -Wno-pointer-sign -O3 -fno-math-errno
> > -fno-signed-zeros -fno-tree-vectorize -Werror=format-security
> > -Werror=implicit-function-declaration -Werror=missing-prototypes
> > -Werror=return-type -Werror=vla -Wformat -fdiagnostics-color=auto
> > -Wno-maybe-uninitialized    -c -o doc/examples/transcoding.o
> > doc/examples/transcoding.c
> >
> > gcc -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat
> -Llibavresample
> > -Llibavutil -Llibpostproc -Llibswscale -Llibswresample -Wl,--as-needed
> > -Wl,-z,noexecstack -Wl,--warn-common
> >
> -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
> >   -o doc/examples/transcoding_g doc/examples/transcoding.o   -lavdevice
> > -lavfilter -lavformat -lavcodec -lpostproc -lswresample -lswscale
> -lavutil
> > -lXv -lX11 -lXext -lva -lva-x11 -lva -lxcb -lxcb-shm -lxcb -lxcb-xfixes
> > -lxcb-render -lxcb-shape -lxcb -lxcb-shape -lxcb -lX11 -lx264 -lmp3lame
> > -lfaac -lm -lz -pthread
> >
> >
> >
> >
> > the simple is looks like :
> > gcc -g doc/examples/muxing.c -o muxing  -lavcodec -lavdevice -lavfilter
> > -lavformat -lavutil -lswscale -lswresample -lpostproc -lx264 -lmp3lame
> -lz
> > -liconv -lbz2
> >
>
> No. You should NEVER explicit the libraries and sub dependency libraries
> by yourself (because it's build and installation dependent). See how it's
> done in the Makefile.
>
> [...]
>
> --
> Clément B.
>
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