include "libavutil/avutil.pxd" include "libavutil/buffer.pxd" include "libavutil/channel_layout.pxd" include "libavutil/dict.pxd" include "libavutil/error.pxd" include "libavutil/frame.pxd" include "libavutil/samplefmt.pxd" include "libavutil/motion_vector.pxd" include "libavcodec/avcodec.pxd" include "libavcodec/bsf.pxd" include "libavdevice/avdevice.pxd" include "libavformat/avformat.pxd" include "libswresample/swresample.pxd" include "libswscale/swscale.pxd" include "libavfilter/avfilter.pxd" include "libavfilter/avfiltergraph.pxd" include "libavfilter/buffersink.pxd" include "libavfilter/buffersrc.pxd" cdef extern from "stdio.h" nogil: cdef int snprintf(char *output, int n, const char *format, ...) cdef int vsnprintf(char *output, int n, const char *format, va_list args)