m4: fix local ffmpeg and avcodec function conflict #18
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Autotools miss avcodec function check. This is due to linker library list order, -ldrm is appended too early respect to -lavutil. This results in missing drm library functions for avcodec functions: - drmGetVersion() - drmFreeVersion() So these functions: - avcodec_get_context_defaults3 - avcodec_open2 - avcodec_encode_video2 can't link correctly during check and they seem not to be present. Then macros HAVE_FUN_avcodec_* are not defined in mediastreamer-config.h So local avcodec functions conflict with real avcodec library functions. In acinclude.m4 file, swap $FFMPEG_LIBS and -lavutil if avcodec is found. Signed-off-by: Giulio Benetti <[email protected]>
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Autotools miss avcodec function check.
This is due to linker library list order, -ldrm is appended too early
respect to -lavutil. This results in missing drm library functions for
avcodec functions:
So these functions:
can't link correctly during check and they seem not to be present.
Then macros HAVE_FUN_avcodec_* are not defined in mediastreamer-config.h
So local avcodec functions conflict with real avcodec library functions.
In acinclude.m4 file, swap $FFMPEG_LIBS and -lavutil if avcodec is found.
Signed-off-by: Giulio Benetti [email protected]