int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
void ff_set_qscale(MpegEncContext * s, int qscale);
-/* Error resilience */
-void ff_mpeg_er_frame_start(MpegEncContext *s);
-
int ff_dct_common_init(MpegEncContext *s);
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);