unsigned int avpriv_toupper4(unsigned int x);
-/**
- * does needed setup of pkt_pts/pos and such for (re)get_buffer();
- */
-int ff_init_buffer_info(AVCodecContext *s, AVFrame *frame);
-
-
void ff_color_frame(AVFrame *frame, const int color[4]);
-extern volatile int ff_avcodec_locked;
-int ff_lock_avcodec(AVCodecContext *log_ctx, const AVCodec *codec);
-int ff_unlock_avcodec(const AVCodec *codec);
-
-int avpriv_lock_avformat(void);
-int avpriv_unlock_avformat(void);
-
/**
* Maximum size in bytes of extradata.
* This value was chosen such that every bit of the buffer is