fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 04:58:05 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

radeon/vcn: add decode message for mpeg2 codec

Browse source 
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Leo Liu 2017-05-03 09:52:03 -04:00
parent 9c93c7c0b4
commit 155ca0ca50
1 changed files with 66 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

66
src/gallium/drivers/radeon/radeon_vcn_dec.c
View file

@ -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;