AV1 VDPAU hwaccel Decode support

Support for VDPAU accelerated AV1 decoding was added with libvdpau-1.5.
Support for the same in ffmpeg is added with this patch. Profiles
related to VDPAU AV1 can be found in latest vdpau.h present in
libvdpau-1.5.

Add AV1 VDPAU to list of hwaccels and supported formats
Added file vdpau_av1.c and Modified configure to add VDPAU AV1 support.
Mapped AV1 profiles to VDPAU AV1 profiles. Populated the codec specific
params that need to be passed to VDPAU.
Signed-off-by: Philip Langdale <philipl@overt.org>

Changelog

@@ -21,6 +21,7 @@ version 5.1:
 - QOI image format support
 - ffprobe -o option
 - virtualbass audio filter
+- VDPAU AV1 hwaccel
 
 
 version 5.0:

configure

@@ -3026,6 +3026,8 @@ av1_nvdec_hwaccel_deps="nvdec CUVIDAV1PICPARAMS"
 av1_nvdec_hwaccel_select="av1_decoder"
 av1_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferAV1_bit_depth_idx"
 av1_vaapi_hwaccel_select="av1_decoder"
+av1_vdpau_hwaccel_deps="vdpau VdpPictureInfoAV1"
+av1_vdpau_hwaccel_select="av1_decoder"
 h263_vaapi_hwaccel_deps="vaapi"
 h263_vaapi_hwaccel_select="h263_decoder"
 h263_videotoolbox_hwaccel_deps="videotoolbox"
@@ -6393,6 +6395,7 @@ check_func_headers mfapi.h MFCreateAlignedMemoryBuffer -lmfplat
 
 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
 check_type "vdpau/vdpau.h" "VdpPictureInfoVP9"
+check_type "vdpau/vdpau.h" "VdpPictureInfoAV1"
 
 if [ -z "$nvccflags" ]; then
     nvccflags=$nvccflags_default

libavcodec/Makefile

@@ -956,6 +956,7 @@ OBJS-$(CONFIG_AV1_D3D11VA_HWACCEL)        += dxva2_av1.o
 OBJS-$(CONFIG_AV1_DXVA2_HWACCEL)          += dxva2_av1.o
 OBJS-$(CONFIG_AV1_NVDEC_HWACCEL)          += nvdec_av1.o
 OBJS-$(CONFIG_AV1_VAAPI_HWACCEL)          += vaapi_av1.o
+OBJS-$(CONFIG_AV1_VDPAU_HWACCEL)          += vdpau_av1.o
 OBJS-$(CONFIG_H263_VAAPI_HWACCEL)         += vaapi_mpeg4.o
 OBJS-$(CONFIG_H263_VIDEOTOOLBOX_HWACCEL)  += videotoolbox.o
 OBJS-$(CONFIG_H264_D3D11VA_HWACCEL)       += dxva2_h264.o

libavcodec/av1dec.c

@@ -441,7 +441,8 @@ static int get_pixel_format(AVCodecContext *avctx)
 #define HWACCEL_MAX (CONFIG_AV1_DXVA2_HWACCEL + \
                      CONFIG_AV1_D3D11VA_HWACCEL * 2 + \
                      CONFIG_AV1_NVDEC_HWACCEL + \
-                     CONFIG_AV1_VAAPI_HWACCEL)
+                     CONFIG_AV1_VAAPI_HWACCEL + \
+                     CONFIG_AV1_VDPAU_HWACCEL)
     enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts;
 
     if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
@@ -518,6 +519,9 @@ static int get_pixel_format(AVCodecContext *avctx)
 #endif
 #if CONFIG_AV1_VAAPI_HWACCEL
         *fmtp++ = AV_PIX_FMT_VAAPI;
+#endif
+#if CONFIG_AV1_VDPAU_HWACCEL
+        *fmtp++ = AV_PIX_FMT_VDPAU;
 #endif
         break;
     case AV_PIX_FMT_YUV420P10:
@@ -533,6 +537,9 @@ static int get_pixel_format(AVCodecContext *avctx)
 #endif
 #if CONFIG_AV1_VAAPI_HWACCEL
         *fmtp++ = AV_PIX_FMT_VAAPI;
+#endif
+#if CONFIG_AV1_VDPAU_HWACCEL
+        *fmtp++ = AV_PIX_FMT_VDPAU;
 #endif
         break;
     case AV_PIX_FMT_GRAY8:
@@ -1271,6 +1278,10 @@ const FFCodec ff_av1_decoder = {
 #if CONFIG_AV1_VAAPI_HWACCEL
         HWACCEL_VAAPI(av1),
 #endif
+#if CONFIG_AV1_VDPAU_HWACCEL
+        HWACCEL_VDPAU(av1),
+#endif
+
         NULL
     },
 };

libavcodec/hwaccels.h

@@ -26,6 +26,7 @@ extern const AVHWAccel ff_av1_d3d11va2_hwaccel;
 extern const AVHWAccel ff_av1_dxva2_hwaccel;
 extern const AVHWAccel ff_av1_nvdec_hwaccel;
 extern const AVHWAccel ff_av1_vaapi_hwaccel;
+extern const AVHWAccel ff_av1_vdpau_hwaccel;
 extern const AVHWAccel ff_h263_vaapi_hwaccel;
 extern const AVHWAccel ff_h263_videotoolbox_hwaccel;
 extern const AVHWAccel ff_h264_d3d11va_hwaccel;

libavcodec/vdpau_internal.h

@@ -57,6 +57,9 @@ union VDPAUPictureInfo {
 #ifdef VDP_DECODER_PROFILE_VP9_PROFILE_0
     VdpPictureInfoVP9        vp9;
 #endif
+#ifdef VDP_DECODER_PROFILE_AV1_MAIN
+    VdpPictureInfoAV1        av1;
+#endif
 };
 
 typedef struct VDPAUHWContext {

libavcodec/version.h

@@ -29,7 +29,7 @@
 
 #include "version_major.h"
 
-#define LIBAVCODEC_VERSION_MINOR  33
+#define LIBAVCODEC_VERSION_MINOR  34
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \