-//Call this function when we know all parameters
-//it may be called in different places for mpeg1 and mpeg2
+static enum PixelFormat mpeg_get_pixelformat(AVCodecContext *avctx){
+ Mpeg1Context *s1 = avctx->priv_data;
+ MpegEncContext *s = &s1->mpeg_enc_ctx;
+
+ if(avctx->xvmc_acceleration)
+ return avctx->get_format(avctx,pixfmt_xvmc_mpg2_420);
+ else if(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
+ if(avctx->codec_id == CODEC_ID_MPEG1VIDEO)
+ return PIX_FMT_VDPAU_MPEG1;
+ else
+ return PIX_FMT_VDPAU_MPEG2;
+ }else{
+ if(s->chroma_format < 2)
+ return avctx->get_format(avctx,ff_hwaccel_pixfmt_list_420);
+ else if(s->chroma_format == 2)
+ return PIX_FMT_YUV422P;
+ else
+ return PIX_FMT_YUV444P;
+ }
+}
+
+/* Call this function when we know all parameters.
+ * It may be called in different places for MPEG-1 and MPEG-2. */