+void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
+ int buf_size)
+{
+ struct vdpau_render_state *render, *last, *next;
+ int i;
+
+ if (!s->current_picture_ptr) return;
+
+ render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
+ assert(render);
+
+ /* fill VdpPictureInfoMPEG4Part2 struct */
+ render->info.mpeg4.trd[0] = s->pp_time;
+ render->info.mpeg4.trb[0] = s->pb_time;
+ render->info.mpeg4.trd[1] = s->pp_field_time >> 1;
+ render->info.mpeg4.trb[1] = s->pb_field_time >> 1;
+ render->info.mpeg4.vop_time_increment_resolution = s->avctx->time_base.den;
+ render->info.mpeg4.vop_coding_type = 0;
+ render->info.mpeg4.vop_fcode_forward = s->f_code;
+ render->info.mpeg4.vop_fcode_backward = s->b_code;
+ render->info.mpeg4.resync_marker_disable = !s->resync_marker;
+ render->info.mpeg4.interlaced = !s->progressive_sequence;
+ render->info.mpeg4.quant_type = s->mpeg_quant;
+ render->info.mpeg4.quarter_sample = s->quarter_sample;
+ render->info.mpeg4.short_video_header = s->avctx->codec->id == AV_CODEC_ID_H263;
+ render->info.mpeg4.rounding_control = s->no_rounding;
+ render->info.mpeg4.alternate_vertical_scan_flag = s->alternate_scan;
+ render->info.mpeg4.top_field_first = s->top_field_first;
+ for (i = 0; i < 64; ++i) {
+ render->info.mpeg4.intra_quantizer_matrix[i] = s->intra_matrix[i];
+ render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
+ }
+ render->info.mpeg4.forward_reference = VDP_INVALID_HANDLE;
+ render->info.mpeg4.backward_reference = VDP_INVALID_HANDLE;
+
+ switch (s->pict_type) {
+ case AV_PICTURE_TYPE_B:
+ next = (struct vdpau_render_state *)s->next_picture.f.data[0];
+ assert(next);
+ render->info.mpeg4.backward_reference = next->surface;
+ render->info.mpeg4.vop_coding_type = 2;
+ // no break here, going to set forward prediction
+ case AV_PICTURE_TYPE_P:
+ last = (struct vdpau_render_state *)s->last_picture.f.data[0];
+ assert(last);
+ render->info.mpeg4.forward_reference = last->surface;
+ }
+
+ ff_vdpau_add_data_chunk(s, buf, buf_size);
+
+ ff_draw_horiz_band(s, 0, s->avctx->height);
+ render->bitstream_buffers_used = 0;
+}
+