vaapi: add vaapi_avs2 support

see intel/libva#738

[Moore Threads](https://www.mthreads.com) (short for Mthreads) is a
Chinese GPU manufacturer. All our products, like MTTS70/MTTS80/.. ,
support AVS2 8bit/10bit HW decoding at max 8k resolution.

Signed-off-by: jianfeng.zheng <[email protected]>

Author: jianfeng.zheng

configure

@@ -2464,6 +2464,7 @@ HAVE_LIST="
     zlib_gzip
     openvino2
     va_profile_avs
+    va_profile_avs2
 "
 
 # options emitted with CONFIG_ prefix but not available on the command line
@@ -3204,6 +3205,7 @@ wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
 cavs_vaapi_hwaccel_deps="vaapi va_profile_avs VAPictureParameterBufferAVS"
+avs2_vaapi_hwaccel_deps="vaapi va_profile_avs2 VAPictureParameterBufferAVS2"
 
 # hardware-accelerated codecs
 mediafoundation_deps="mftransform_h MFCreateAlignedMemoryBuffer"
@@ -7189,6 +7191,11 @@ if enabled vaapi; then
         test_code cc va/va.h "VAProfile p1 = VAProfileAVSJizhun, p2 = VAProfileAVSGuangdian;" &&
         enable va_profile_avs
     enabled va_profile_avs && check_type "va/va.h va/va_dec_avs.h" "VAPictureParameterBufferAVS"
+
+    disable va_profile_avs2 &&
+        test_code cc va/va.h "VAProfile p1 = VAProfileAVS2Main, p2 = VAProfileAVS2Main10;" &&
+        enable va_profile_avs2
+    enabled va_profile_avs2 && check_type "va/va.h va/va_dec_avs2.h" "VAPictureParameterBufferAVS2"
 fi
 
 if enabled_all opencl libdrm ; then

libavcodec/Makefile

@@ -285,6 +285,7 @@ OBJS-$(CONFIG_BRENDER_PIX_DECODER)     += brenderpix.o
 OBJS-$(CONFIG_C93_DECODER)             += c93.o
 OBJS-$(CONFIG_CAVS_DECODER)            += cavs.o cavsdec.o cavsdsp.o \
                                           cavsdata.o
+OBJS-$(CONFIG_AVS2_DECODER)            += avs2.o avs2dec.o avs2dec_headers.o
 OBJS-$(CONFIG_CBD2_DECODER)            += dpcm.o
 OBJS-$(CONFIG_CCAPTION_DECODER)        += ccaption_dec.o ass.o
 OBJS-$(CONFIG_CDGRAPHICS_DECODER)      += cdgraphics.o
@@ -1056,6 +1057,7 @@ OBJS-$(CONFIG_VP9_VDPAU_HWACCEL)          += vdpau_vp9.o
 OBJS-$(CONFIG_VP9_VIDEOTOOLBOX_HWACCEL)   += videotoolbox_vp9.o
 OBJS-$(CONFIG_VP8_QSV_HWACCEL)            += qsvdec.o
 OBJS-$(CONFIG_CAVS_VAAPI_HWACCEL)         += vaapi_cavs.o
+OBJS-$(CONFIG_AVS2_VAAPI_HWACCEL)         += vaapi_avs2.o
 
 # Objects duplicated from other libraries for shared builds
 SHLIBOBJS                              += log2_tab.o reverse.o

libavcodec/allcodecs.c

@@ -76,6 +76,7 @@ extern const FFCodec ff_bmv_video_decoder;
 extern const FFCodec ff_brender_pix_decoder;
 extern const FFCodec ff_c93_decoder;
 extern const FFCodec ff_cavs_decoder;
+extern const FFCodec ff_avs2_decoder;
 extern const FFCodec ff_cdgraphics_decoder;
 extern const FFCodec ff_cdtoons_decoder;
 extern const FFCodec ff_cdxl_decoder;