static int dvvideo_decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { DVVideoContext *s = avctx->priv_data; s->sys = dv_frame_profile(buf); if (!s->sys || buf_size < s->sys->frame_size) return -1; /* NOTE: we only accept several full frames */ if(s->picture.data[0]) avctx->release_buffer(avctx, &s->picture); s->picture.reference = 0; s->picture.key_frame = 1; s->picture.pict_type = FF_I_TYPE; avctx->pix_fmt = s->sys->pix_fmt; avcodec_set_dimensions(avctx, s->sys->width, s->sys->height); if(avctx->get_buffer(avctx, &s->picture) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } s->picture.interlaced_frame = 1; s->picture.top_field_first = 0; s->buf = buf; avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL, s->sys->difseg_size * 27); emms_c(); /* return image */ *data_size = sizeof(AVFrame); *(AVFrame*)data= s->picture; return s->sys->frame_size; }