Revert "Merge commit of 'vdpau: remove old-style decoders'"

This reverts commit bf36dc50ea448999c8f8c7a35f6139a7040f6275, reversing
changes made to b7fc2693c70fe72936e4ce124c802ac23857c476.

Conflicts:

	libavcodec/h264.c

Keeping support for the old VDPAU API has been requested by our VDPAU maintainer

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 47 insertions, 1 deletions

diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 93a11a149b..4e7b944813 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -35,6 +35,7 @@
 #include "mpeg12.h"
 #include "mpeg12data.h"
 #include "bytestream.h"
+#include "vdpau_internal.h"
 #include "xvmc_internal.h"
 #include "thread.h"
 
@@ -1152,6 +1153,10 @@ static const enum AVPixelFormat mpeg2_hwaccel_pixfmt_list_420[] = {
     AV_PIX_FMT_NONE
 };
 
+static inline int uses_vdpau(AVCodecContext *avctx) {
+    return avctx->pix_fmt == AV_PIX_FMT_VDPAU_MPEG1 || avctx->pix_fmt == AV_PIX_FMT_VDPAU_MPEG2;
+}
+
 static enum AVPixelFormat mpeg_get_pixelformat(AVCodecContext *avctx)
 {
     Mpeg1Context *s1 = avctx->priv_data;
@@ -1178,7 +1183,7 @@ static void setup_hwaccel_for_pixfmt(AVCodecContext *avctx)
     avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
     // until then pix_fmt may be changed right after codec init
     if (avctx->pix_fmt == AV_PIX_FMT_XVMC_MPEG2_IDCT ||
-        avctx->hwaccel)
+        avctx->hwaccel || uses_vdpau(avctx))
         if (avctx->idct_algo == FF_IDCT_AUTO)
             avctx->idct_algo = FF_IDCT_SIMPLE;
 }
@@ -2165,6 +2170,10 @@ static int decode_chunks(AVCodecContext *avctx,
                         s2->er.error_count += s2->thread_context[i]->er.error_count;
                 }
 
+                if ((CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER)
+                    && uses_vdpau(avctx))
+                    ff_vdpau_mpeg_picture_complete(s2, buf, buf_size, s->slice_count);
+
                 ret = slice_end(avctx, picture);
                 if (ret < 0)
                     return ret;
@@ -2392,6 +2401,11 @@ static int decode_chunks(AVCodecContext *avctx,
                     return AVERROR_INVALIDDATA;
                 }
 
+                if (uses_vdpau(avctx)) {
+                    s->slice_count++;
+                    break;
+                }
+
                 if (HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE) &&
                     !avctx->hwaccel) {
                     int threshold = (s2->mb_height * s->slice_count +
@@ -2608,3 +2622,35 @@ AVCodec ff_mpeg_xvmc_decoder = {
 };
 
 #endif
+
+#if CONFIG_MPEG_VDPAU_DECODER
+AVCodec ff_mpeg_vdpau_decoder = {
+    .name           = "mpegvideo_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MPEG2VIDEO,
+    .priv_data_size = sizeof(Mpeg1Context),
+    .init           = mpeg_decode_init,
+    .close          = mpeg_decode_end,
+    .decode         = mpeg_decode_frame,
+    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED |
+                      CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
+    .flush          = flush,
+    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-1/2 video (VDPAU acceleration)"),
+};
+#endif
+
+#if CONFIG_MPEG1_VDPAU_DECODER
+AVCodec ff_mpeg1_vdpau_decoder = {
+    .name           = "mpeg1video_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_MPEG1VIDEO,
+    .priv_data_size = sizeof(Mpeg1Context),
+    .init           = mpeg_decode_init,
+    .close          = mpeg_decode_end,
+    .decode         = mpeg_decode_frame,
+    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED |
+                      CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
+    .flush          = flush,
+    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-1 video (VDPAU acceleration)"),
+};
+#endif