[VDPAU] [PATCH 2/2] [PATCH] Enable lossless video playback via VDPAU

[ksreenivasan at nvidia.com]

From: Karthikeyan Sreenivasan <ksreenivasan at nvidia.com>

Exposes the hardware flags via VDPAU to enable lossess video playback
for x264 and JM encoded bit streams.

This revision adds a new struct VdpPictureInfoH264Extended which
contains a struct_version and the transform_bypass which can take
the follwing values,
0 - No lossless
1 - x264 encoded streams
2 - JM encoded streams

The transform_bypass field will be used to populate lossless fields
when passing values to NVVA based on the type of lossless encoding
and then passed on to hardware.

Added H264_HIGH_444PP profile which was not present before.

This revision to vdpau.h would require an API change.
---
 include/vdpau/vdpau.h |   29 ++++++++++++++++++++++++-----
 1 file changed, 24 insertions(+), 5 deletions(-)

diff --git a/include/vdpau/vdpau.h b/include/vdpau/vdpau.h
index 22497e2..4d43bb0 100644
--- a/include/vdpau/vdpau.h
+++ b/include/vdpau/vdpau.h
@@ -2437,6 +2437,8 @@ typedef uint32_t VdpDecoderProfile;
 #define VDP_DECODER_PROFILE_DIVX5_HOME_THEATER          (VdpDecoderProfile)20
 /** \hideinitializer */
 #define VDP_DECODER_PROFILE_DIVX5_HD_1080P              (VdpDecoderProfile)21
+/** \hideinitializer */
+#define VDP_DECODER_PROFILE_H264_HIGH_444PP             (VdpDecoderProfile)22
 
 /** \hideinitializer */
 #define VDP_DECODER_LEVEL_MPEG1_NA 0
@@ -2813,11 +2815,7 @@ typedef struct {
     uint8_t  deblocking_filter_control_present_flag;
     /** Copy of the H.264 bitstream field. */
     uint8_t  redundant_pic_cnt_present_flag;
-    /** Copy of the H.264 bitstream field. */
-    uint8_t lossless_ipred8x8_filter_enable;
-    /** Copy of the H.264 bitstream field. */
-    uint8_t qpprime_y_zero_transform_bypass_flag;
-
+    
     /** Copy of the H.264 bitstream field, converted to raster order. */
     uint8_t scaling_lists_4x4[6][16];
     /** Copy of the H.264 bitstream field, converted to raster order. */
@@ -2827,6 +2825,27 @@ typedef struct {
     VdpReferenceFrameH264 referenceFrames[16];
 } VdpPictureInfoH264;
 
+#define VDP_H264_EXTENDED_VERSION 0
+
+/**
+ * \brief Extended picture parameter information for an H.264 picture.
+ *
+ * Note: Contains field for lossless decode.
+ */
+typedef struct {
+    /**
+     * This field must be filled with VDP_H264_EXTENDED_VERSION
+     */
+    uint32_t struct_version;
+    /** Performs lossless decode
+     * 0: no lossless decode
+     * 1: x264 lossless decode
+     * 2: JM lossless decode
+     * >2: unsupported lossless decode stream
+     */
+    uint8_t transform_bypass;
+} VdpPictureInfoH264Extended;
+
 /**
  * \brief Picture parameter information for a VC1 picture.
  *
-- 
1.7.10.4


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