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Support B-frames when decoding MPEG-4 with VDPAU hardware acceleration.
Based on a patch by NVIDIA. Originally committed as revision 22160 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -317,6 +317,10 @@ void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
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assert(render);
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/* fill VdpPictureInfoMPEG4Part2 struct */
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render->info.mpeg4.trd[0] = s->pp_time;
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render->info.mpeg4.trb[0] = s->pb_time;
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render->info.mpeg4.trd[1] = s->pp_field_time >> 1;
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render->info.mpeg4.trb[1] = s->pb_field_time >> 1;
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render->info.mpeg4.vop_time_increment_resolution = s->avctx->time_base.den;
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render->info.mpeg4.vop_coding_type = 0;
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render->info.mpeg4.vop_fcode_forward = s->f_code;
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