Add VDPAU hardware accelerated decoding for WMV3 and VC1 which can

be used by video players.

Original patch by NVIDIA corporation.

Originally committed as revision 16699 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 70 insertions, 0 deletions

diff --git a/libavcodec/vdpauvideo.c b/libavcodec/vdpauvideo.c
index a7c604d1e2..8eb806a1a0 100644
--- a/libavcodec/vdpauvideo.c
+++ b/libavcodec/vdpauvideo.c
@@ -24,6 +24,7 @@
 #include <limits.h>
 #include "avcodec.h"
 #include "h264.h"
+#include "vc1.h"
 
 #undef NDEBUG
 #include <assert.h>
@@ -232,4 +233,73 @@ void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
     render->bitstream_buffers_used               = 0;
 }
 
+void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
+                                 int buf_size)
+{
+    VC1Context *v = s->avctx->priv_data;
+    struct vdpau_render_state * render, * last, * next;
+
+    render = (struct vdpau_render_state*)s->current_picture.data[0];
+    assert(render);
+
+    /*  fill LvPictureInfoVC1 struct */
+    render->info.vc1.frame_coding_mode  = v->fcm;
+    render->info.vc1.postprocflag       = v->postprocflag;
+    render->info.vc1.pulldown           = v->broadcast;
+    render->info.vc1.interlace          = v->interlace;
+    render->info.vc1.tfcntrflag         = v->tfcntrflag;
+    render->info.vc1.finterpflag        = v->finterpflag;
+    render->info.vc1.psf                = v->psf;
+    render->info.vc1.dquant             = v->dquant;
+    render->info.vc1.panscan_flag       = v->panscanflag;
+    render->info.vc1.refdist_flag       = v->refdist_flag;
+    render->info.vc1.quantizer          = v->quantizer_mode;
+    render->info.vc1.extended_mv        = v->extended_mv;
+    render->info.vc1.extended_dmv       = v->extended_dmv;
+    render->info.vc1.overlap            = v->overlap;
+    render->info.vc1.vstransform        = v->vstransform;
+    render->info.vc1.loopfilter         = v->s.loop_filter;
+    render->info.vc1.fastuvmc           = v->fastuvmc;
+    render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
+    render->info.vc1.range_mapy         = v->range_mapy;
+    render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
+    render->info.vc1.range_mapuv        = v->range_mapuv;
+    /* Specific to simple/main profile only */
+    render->info.vc1.multires           = v->multires;
+    render->info.vc1.syncmarker         = v->s.resync_marker;
+    render->info.vc1.rangered           = v->rangered;
+    render->info.vc1.maxbframes         = v->s.max_b_frames;
+
+    render->info.vc1.deblockEnable      = v->postprocflag & 1;
+    render->info.vc1.pquant             = v->pq;
+
+    render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
+    render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
+
+    if (v->bi_type)
+        render->info.vc1.picture_type = 4;
+    else
+        render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
+
+    switch(s->pict_type){
+    case  FF_B_TYPE:
+        next = (struct vdpau_render_state*)s->next_picture.data[0];
+        assert(next);
+        render->info.vc1.backward_reference = next->surface;
+        // no break here, going to set forward prediction
+    case  FF_P_TYPE:
+        last = (struct vdpau_render_state*)s->last_picture.data[0];
+        if (!last) // FIXME: Does this test make sense?
+            last = render; // predict second field from the first
+        render->info.vc1.forward_reference = last->surface;
+    }
+
+    ff_vdpau_add_data_chunk(s, buf, buf_size);
+
+    render->info.vc1.slice_count          = 1;
+
+    ff_draw_horiz_band(s, 0, s->avctx->height);
+    render->bitstream_buffers_used        = 0;
+}
+
 /* @}*/