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[client] h264: use parameters from nal (incomplete)

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This commit is contained in:
Geoffrey McRae 2018-01-06 00:11:38 +11:00
parent 5a84d3bef7
commit 5e84cfb3f1
3 changed files with 68 additions and 27 deletions
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78
client/decoders/h264.c
View File

@ -25,15 +25,12 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <SDL2/SDL_syswm.h>
#include <va/va_glx.h>
#define SURFACE_NUM 3
#define SLICE_TYPE_P 0
#define SLICE_TYPE_B 1
#define SLICE_TYPE_I 2
struct Inst
{
LG_RendererFormat format;
@ -441,7 +438,7 @@ static void set_slice_parameter_buffer_t2(VASliceParameterBufferH264 *p, const b
p->RefPicList0[0].picture_id = 0xffffffff;
}
static bool setup_pic_buffer(struct Inst * this)
static bool setup_pic_buffer(struct Inst * this, const NAL_SLICE * slice)
{
VAStatus status;
@ -467,15 +464,54 @@ static bool setup_pic_buffer(struct Inst * this)
return false;
}
const NAL_PPS * pps;
if (!nal_get_pps(this->nal, &pps))
{
DEBUG_ERROR("nal_get_pps");
return false;
}
memset(p, 0, sizeof(VAPictureParameterBufferH264));
p->picture_width_in_mbs_minus1 = sps->pic_width_in_mbs_minus1;
p->picture_height_in_mbs_minus1 = sps->pic_height_in_map_units_minus1;
p->bit_depth_luma_minus8 = sps->bit_depth_luma_minus8;
p->bit_depth_chroma_minus8 = sps->bit_depth_chroma_minus8;
p->num_ref_frames = sps->num_ref_frames;
p->seq_fields.value = 145;
p->pic_fields.value = 0x501;
p->frame_num = this->frameNum % 16;
p->seq_fields.value = 0;
p->seq_fields.bits.chroma_format_idc = sps->chroma_format_idc;
p->seq_fields.bits.residual_colour_transform_flag = sps->gaps_in_frame_num_value_allowed_flag;
p->seq_fields.bits.frame_mbs_only_flag = sps->frame_mbs_only_flag;
p->seq_fields.bits.mb_adaptive_frame_field_flag = sps->mb_adaptive_frame_field_flag;
p->seq_fields.bits.direct_8x8_inference_flag = sps->direct_8x8_inference_flag;
p->seq_fields.bits.MinLumaBiPredSize8x8 = sps->level_idc >= 31;
p->seq_fields.bits.log2_max_frame_num_minus4 = sps->log2_max_frame_num_minus4;
p->seq_fields.bits.pic_order_cnt_type = sps->pic_order_cnt_type;
p->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_pic_order_cnt_lsb_minus4;
p->seq_fields.bits.delta_pic_order_always_zero_flag = sps->delta_pic_order_always_zero_flag;
p->num_slice_groups_minus1 = pps->num_slice_groups_minus1;
p->slice_group_map_type = pps->slice_group_map_type;
p->slice_group_change_rate_minus1 = 0;
p->pic_init_qp_minus26 = pps->pic_init_qp_minus26;
p->pic_init_qs_minus26 = pps->pic_init_qs_minus26;
p->chroma_qp_index_offset = pps->chroma_qp_index_offset;
p->second_chroma_qp_index_offset = pps->second_chroma_qp_index_offset;
p->pic_fields.value = 0;
p->pic_fields.bits.entropy_coding_mode_flag = pps->entropy_coding_mode_flag;
p->pic_fields.bits.weighted_pred_flag = pps->weighted_pred_flag;
p->pic_fields.bits.weighted_bipred_idc = pps->weighted_bipred_idc;
p->pic_fields.bits.transform_8x8_mode_flag = pps->transform_8x8_mode_flag;
p->pic_fields.bits.field_pic_flag = slice->field_pic_flag;
p->pic_fields.bits.constrained_intra_pred_flag = pps->constrained_intra_pred_flag;
p->pic_fields.bits.pic_order_present_flag = pps->pic_order_present_flag;
p->pic_fields.bits.deblocking_filter_control_present_flag = pps->deblocking_filter_control_present_flag;
p->pic_fields.bits.redundant_pic_cnt_present_flag = pps->redundant_pic_cnt_present_flag;
p->pic_fields.bits.reference_pic_flag = slice->nal_ref_idc != 0;
p->frame_num = slice->frame_num;
for(int i = 0; i < 16; ++i)
{
p->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
@ -616,34 +652,32 @@ static bool lgd_h264_decode(void * opaque, const uint8_t * src, size_t srcSize)
VAStatus status;
struct Inst * this = (struct Inst *)opaque;
if (!nal_parse(this->nal, src, srcSize))
size_t seek;
if (!nal_parse(this->nal, src, srcSize, &seek))
{
DEBUG_WARN("nal_parse, perhaps mid stream");
return true;
}
uint8_t pic_type;
if (!nal_get_primary_picture_type(this->nal, &pic_type))
const NAL_SLICE * slice;
if (!nal_get_slice(this->nal, &slice))
{
DEBUG_ERROR("Missing primary picture type");
return false;
DEBUG_WARN("nal_get_slice failed");
return true;
}
static const int pic_type_to_slice_type[3] =
{
SLICE_TYPE_I,
SLICE_TYPE_P,
SLICE_TYPE_B
};
assert(seek < srcSize);
src += seek;
srcSize -= seek;
this->sliceType = pic_type_to_slice_type[pic_type];
this->sliceType = slice->slice_type;
// don't start until we have an I-FRAME
if (this->frameNum == 0 && this->sliceType != SLICE_TYPE_I)
if (this->frameNum == 0 && this->sliceType != NAL_SLICE_TYPE_I)
return true;
{
if (!setup_pic_buffer(this)) return false;
if (!setup_pic_buffer(this, slice)) return false;
if (!setup_mat_buffer(this)) return false;
VABufferID bufferIDs[] =

14
client/parsers/nal.c
View File

@ -485,6 +485,7 @@ static bool parse_nal_pps(NAL this, const uint8_t * src, size_t size, size_t * c
this->pps_slice_group_id = realloc(this->pps_slice_group_id,
this->pps_slice_group_id_size * sizeof(uint32_t));
}
pps->slice_group_id = this->pps_slice_group_id;
for(uint32_t group = 0; group <= pps->pic_size_in_map_units_minus1; ++group)
pps->slice_group_id[group] = get_bits(src, offset, bits);
@ -770,6 +771,7 @@ static bool parse_nal_coded_slice(
NAL_SLICE * slice = &this->slice;
memset(slice, 0, sizeof(NAL_SLICE));
slice->nal_ref_idc = ref_idc;
slice->first_mb_in_slice = decode_u_golomb(src, offset);
slice->slice_type = decode_u_golomb(src, offset);
slice->pic_parameter_set_id = decode_u_golomb(src, offset);
@ -901,7 +903,7 @@ static bool parse_nal_coded_slice(
return true;
}
bool nal_parse(NAL this, const uint8_t * src, size_t size)
bool nal_parse(NAL this, const uint8_t * src, size_t size, size_t * seek)
{
#ifdef DEBUG_NAL
static FILE * fd = NULL;
@ -911,19 +913,22 @@ bool nal_parse(NAL this, const uint8_t * src, size_t size)
fflush(fd);
#endif
*seek = 0;
for(size_t i = 0; i < size - 4; ++i)
{
if (src[i++] != 0 || src[i++] != 0)
continue;
break;
if (src[i] == 0)
++i;
if (src[i++] != 1)
continue;
break;
size_t offset = i << 3;
DEBUG_INFO("nal @ %lu (%lu)", i, offset);
#ifdef DEBUG_NAL
DEBUG_INFO("nal @ %lu (%lu)", *seek, offset);
#endif
// ensure the forbidden zero bit is not set
if (get_bit(src, &offset) != 0)
@ -970,6 +975,7 @@ bool nal_parse(NAL this, const uint8_t * src, size_t size)
}
i = offset >> 3;
*seek = i;
}
return true;

3
client/parsers/nal.h
View File

@ -263,6 +263,7 @@ NAL_RP_MARKING;
typedef struct NAL_SLICE
{
uint8_t nal_ref_idc;
uint32_t first_mb_in_slice;
uint32_t slice_type;
uint32_t pic_parameter_set_id;
@ -296,7 +297,7 @@ typedef struct NAL * NAL;
bool nal_initialize (NAL * ptr);
void nal_deinitialize(NAL this );
bool nal_parse (NAL this, const uint8_t * src, size_t size);
bool nal_parse (NAL this, const uint8_t * src, size_t size, size_t * seek);
bool nal_get_primary_picture_type(NAL this, uint8_t * pic_type);
bool nal_get_sps (NAL this, const NAL_SPS ** sps );