Signed-off-by: Leo Liu <leo....@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
src/gallium/drivers/radeon/radeon_vcn_dec.c | 66 +++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/src/gallium/drivers/radeon/radeon_vcn_dec.c
b/src/gallium/drivers/radeon/radeon_vcn_dec.c
index 60a6287..0323114 100644
--- a/src/gallium/drivers/radeon/radeon_vcn_dec.c
+++ b/src/gallium/drivers/radeon/radeon_vcn_dec.c
@@ -445,6 +445,64 @@ static rvcn_dec_message_vc1_t get_vc1_msg(struct
pipe_vc1_picture_desc *pic)
return result;
}
+static uint32_t get_ref_pic_idx(struct radeon_decoder *dec, struct
pipe_video_buffer *ref)
+{
+ uint32_t min = MAX2(dec->frame_number, NUM_MPEG2_REFS) - NUM_MPEG2_REFS;
+ uint32_t max = MAX2(dec->frame_number, 1) - 1;
+ uintptr_t frame;
+
+ /* seems to be the most sane fallback */
+ if (!ref)
+ return max;
+
+ /* get the frame number from the associated data */
+ frame = (uintptr_t)vl_video_buffer_get_associated_data(ref, &dec->base);
+
+ /* limit the frame number to a valid range */
+ return MAX2(MIN2(frame, max), min);
+}
+
+static rvcn_dec_message_mpeg2_vld_t get_mpeg2_msg(struct radeon_decoder *dec,
+ struct pipe_mpeg12_picture_desc *pic)
+{
+ const int *zscan = pic->alternate_scan ? vl_zscan_alternate :
vl_zscan_normal;
+ rvcn_dec_message_mpeg2_vld_t result;
+ unsigned i;
+
+ memset(&result, 0, sizeof(result));
+ result.decoded_pic_idx = dec->frame_number;
+
+ result.forward_ref_pic_idx = get_ref_pic_idx(dec, pic->ref[0]);
+ result.backward_ref_pic_idx = get_ref_pic_idx(dec, pic->ref[1]);
+
+ result.load_intra_quantiser_matrix = 1;
+ result.load_nonintra_quantiser_matrix = 1;
+
+ for (i = 0; i < 64; ++i) {
+ result.intra_quantiser_matrix[i] = pic->intra_matrix[zscan[i]];
+ result.nonintra_quantiser_matrix[i] =
pic->non_intra_matrix[zscan[i]];
+ }
+
+ result.profile_and_level_indication = 0;
+ result.chroma_format = 0x1;
+
+ result.picture_coding_type = pic->picture_coding_type;
+ result.f_code[0][0] = pic->f_code[0][0] + 1;
+ result.f_code[0][1] = pic->f_code[0][1] + 1;
+ result.f_code[1][0] = pic->f_code[1][0] + 1;
+ result.f_code[1][1] = pic->f_code[1][1] + 1;
+ result.intra_dc_precision = pic->intra_dc_precision;
+ result.pic_structure = pic->picture_structure;
+ result.top_field_first = pic->top_field_first;
+ result.frame_pred_frame_dct = pic->frame_pred_frame_dct;
+ result.concealment_motion_vectors = pic->concealment_motion_vectors;
+ result.q_scale_type = pic->q_scale_type;
+ result.intra_vlc_format = pic->intra_vlc_format;
+ result.alternate_scan = pic->alternate_scan;
+
+ return result;
+}
+
static void rvcn_dec_message_create(struct radeon_decoder *dec)
{
rvcn_dec_message_header_t *header = dec->msg;
@@ -591,6 +649,14 @@ static struct pb_buffer *rvcn_dec_message_decode(struct
radeon_decoder *dec,
break;
}
+ case PIPE_VIDEO_FORMAT_MPEG12: {
+ rvcn_dec_message_mpeg2_vld_t mpeg2 =
+ get_mpeg2_msg(dec, (struct
pipe_mpeg12_picture_desc*)picture);
+
+ memcpy(codec, (void*)&mpeg2,
sizeof(rvcn_dec_message_mpeg2_vld_t));
+ index->message_id = RDECODE_MESSAGE_MPEG2_VLD;
+ break;
+ }
default:
assert(0);
return NULL;
--
2.7.4
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