vaapi: streamline public context structure.

Move libavcodec managed objects from the public struct vaapi_context
to a new privately owned FFVAContext. This is done so that to clean up
and streamline the public structure, but also to prepare for new codec
support, thus requiring new internal data to be added in there.

The AVCodecContext.hwaccel_context, that holds the public vaapi_context,
shall no longer be accessed from within vaapi_*.c codec support files.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/libavcodec/vaapi_h264.c b/libavcodec/vaapi_h264.c
index 55ee2fc233..ded2cb3d49 100644
--- a/libavcodec/vaapi_h264.c
+++ b/libavcodec/vaapi_h264.c
@@ -227,7 +227,7 @@ static int vaapi_h264_start_frame(AVCodecContext          *avctx,
                                   av_unused uint32_t       size)
 {
     H264Context * const h = avctx->priv_data;
-    struct vaapi_context * const vactx = avctx->hwaccel_context;
+    FFVAContext * const vactx = ff_vaapi_get_context(avctx);
     VAPictureParameterBufferH264 *pic_param;
     VAIQMatrixBufferH264 *iq_matrix;
 
@@ -292,7 +292,7 @@ static int vaapi_h264_start_frame(AVCodecContext          *avctx,
 /** End a hardware decoding based frame. */
 static int vaapi_h264_end_frame(AVCodecContext *avctx)
 {
-    struct vaapi_context * const vactx = avctx->hwaccel_context;
+    FFVAContext * const vactx = ff_vaapi_get_context(avctx);
     H264Context * const h = avctx->priv_data;
     H264SliceContext *sl = &h->slice_ctx[0];
     int ret;
@@ -318,6 +318,7 @@ static int vaapi_h264_decode_slice(AVCodecContext *avctx,
                                    const uint8_t  *buffer,
                                    uint32_t        size)
 {
+    FFVAContext * const vactx = ff_vaapi_get_context(avctx);
     H264Context * const h = avctx->priv_data;
     H264SliceContext *sl  = &h->slice_ctx[0];
     VASliceParameterBufferH264 *slice_param;
@@ -326,7 +327,7 @@ static int vaapi_h264_decode_slice(AVCodecContext *avctx,
             buffer, size);
 
     /* Fill in VASliceParameterBufferH264. */
-    slice_param = (VASliceParameterBufferH264 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size);
+    slice_param = (VASliceParameterBufferH264 *)ff_vaapi_alloc_slice(vactx, buffer, size);
     if (!slice_param)
         return -1;
     slice_param->slice_data_bit_offset          = get_bits_count(&sl->gb) + 8; /* bit buffer started beyond nal_unit_type */
@@ -363,4 +364,7 @@ AVHWAccel ff_h264_vaapi_hwaccel = {
     .start_frame    = vaapi_h264_start_frame,
     .end_frame      = vaapi_h264_end_frame,
     .decode_slice   = vaapi_h264_decode_slice,
+    .init           = ff_vaapi_context_init,
+    .uninit         = ff_vaapi_context_fini,
+    .priv_data_size = sizeof(FFVAContext),
 };