falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
Browse Source

h264: move *_samples_available into the per-slice context

tags/n2.7
Anton Khirnov 11 years ago
parent
7d8154edd5
commit
64c81b2cd0
7 changed files with 51 additions and 48 deletions
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. +9
    -8
      libavcodec/h264.c
  2. +7
    -5
      libavcodec/h264.h
  3. +2
    -2
      libavcodec/h264_cabac.c
  4. +2
    -2
      libavcodec/h264_cavlc.c
  5. +3
    -3
      libavcodec/h264_mb.c
  6. +17
    -17
      libavcodec/h264_mvpred.h
  7. +11
    -11
      libavcodec/svq3.c

+ 9
- 8
libavcodec/h264.c View File

@@ -135,7 +135,7 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h, H264SliceContext *sl)
};
int i;

if (!(h->top_samples_available & 0x8000)) {
if (!(sl->top_samples_available & 0x8000)) {
for (i = 0; i < 4; i++) {
int status = top[sl->intra4x4_pred_mode_cache[scan8[0] + i]];
if (status < 0) {
@@ -149,10 +149,10 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h, H264SliceContext *sl)
}
}

if ((h->left_samples_available & 0x8888) != 0x8888) {
if ((sl->left_samples_available & 0x8888) != 0x8888) {
static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
for (i = 0; i < 4; i++)
if (!(h->left_samples_available & mask[i])) {
if (!(sl->left_samples_available & mask[i])) {
int status = left[sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i]];
if (status < 0) {
av_log(h->avctx, AV_LOG_ERROR,
@@ -172,7 +172,8 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h, H264SliceContext *sl)
* Check if the top & left blocks are available if needed and
* change the dc mode so it only uses the available blocks.
*/
int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)
int ff_h264_check_intra_pred_mode(H264Context *h, H264SliceContext *sl,
int mode, int is_chroma)
{
static const int8_t top[4] = { LEFT_DC_PRED8x8, 1, -1, -1 };
static const int8_t left[5] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
@@ -184,7 +185,7 @@ int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)
return AVERROR_INVALIDDATA;
}

if (!(h->top_samples_available & 0x8000)) {
if (!(sl->top_samples_available & 0x8000)) {
mode = top[mode];
if (mode < 0) {
av_log(h->avctx, AV_LOG_ERROR,
@@ -194,12 +195,12 @@ int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)
}
}

if ((h->left_samples_available & 0x8080) != 0x8080) {
if ((sl->left_samples_available & 0x8080) != 0x8080) {
mode = left[mode];
if (is_chroma && (h->left_samples_available & 0x8080)) {
if (is_chroma && (sl->left_samples_available & 0x8080)) {
// mad cow disease mode, aka MBAFF + constrained_intra_pred
mode = ALZHEIMER_DC_L0T_PRED8x8 +
(!(h->left_samples_available & 0x8000)) +
(!(sl->left_samples_available & 0x8000)) +
2 * (mode == DC_128_PRED8x8);
}
if (mode < 0) {


+ 7
- 5
libavcodec/h264.h View File

@@ -336,6 +336,11 @@ typedef struct H264SliceContext {

const uint8_t *left_block;
int topleft_partition;

unsigned int topleft_samples_available;
unsigned int top_samples_available;
unsigned int topright_samples_available;
unsigned int left_samples_available;
} H264SliceContext;

/**
@@ -374,10 +379,6 @@ typedef struct H264Context {

int8_t(*intra4x4_pred_mode);
H264PredContext hpc;
unsigned int topleft_samples_available;
unsigned int top_samples_available;
unsigned int topright_samples_available;
unsigned int left_samples_available;
uint8_t (*top_borders[2])[(16 * 3) * 2];

/**
@@ -794,7 +795,8 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h, H264SliceContext *sl);
* Check if the top & left blocks are available if needed & change the
* dc mode so it only uses the available blocks.
*/
int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma);
int ff_h264_check_intra_pred_mode(H264Context *h, H264SliceContext *sl,
int mode, int is_chroma);

void ff_h264_hl_decode_mb(H264Context *h, H264SliceContext *sl);
int ff_h264_decode_extradata(H264Context *h);


+ 2
- 2
libavcodec/h264_cabac.c View File

@@ -2058,14 +2058,14 @@ decode_intra_mb:
write_back_intra_pred_mode(h, sl);
if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0 ) return -1;
} else {
sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl->intra16x16_pred_mode, 0);
sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);
if (sl->intra16x16_pred_mode < 0) return -1;
}
if(decode_chroma){
h->chroma_pred_mode_table[mb_xy] =
pred_mode = decode_cabac_mb_chroma_pre_mode(h, sl);

pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode, 1 );
pred_mode= ff_h264_check_intra_pred_mode(h, sl, pred_mode, 1 );
if( pred_mode < 0 ) return -1;
sl->chroma_pred_mode = pred_mode;
} else {


+ 2
- 2
libavcodec/h264_cavlc.c View File

@@ -814,12 +814,12 @@ decode_intra_mb:
if (ff_h264_check_intra4x4_pred_mode(h, sl) < 0)
return -1;
}else{
sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl->intra16x16_pred_mode, 0);
sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, sl->intra16x16_pred_mode, 0);
if (sl->intra16x16_pred_mode < 0)
return -1;
}
if(decode_chroma){
pred_mode= ff_h264_check_intra_pred_mode(h, get_ue_golomb_31(&h->gb), 1);
pred_mode= ff_h264_check_intra_pred_mode(h, sl, get_ue_golomb_31(&h->gb), 1);
if(pred_mode < 0)
return -1;
sl->chroma_pred_mode = pred_mode;


+ 3
- 3
libavcodec/h264_mb.c View File

@@ -636,8 +636,8 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
} else {
const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
(h->topright_samples_available << i) & 0x4000, linesize);
h->hpc.pred8x8l[dir](ptr, (sl->topleft_samples_available << i) & 0x8000,
(sl->topright_samples_available << i) & 0x4000, linesize);
if (nnz) {
if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
@@ -665,7 +665,7 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
int nnz, tr;
uint64_t tr_high;
if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
const int topright_avail = (h->topright_samples_available << i) & 0x8000;
const int topright_avail = (sl->topright_samples_available << i) & 0x8000;
assert(h->mb_y || linesize <= block_offset[i]);
if (!topright_avail) {
if (pixel_shift) {


+ 17
- 17
libavcodec/h264_mvpred.h View File

@@ -465,47 +465,47 @@ static void fill_decode_caches(H264Context *h, H264SliceContext *sl, int mb_type
if (!IS_SKIP(mb_type)) {
if (IS_INTRA(mb_type)) {
int type_mask = h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
h->topleft_samples_available =
h->top_samples_available =
h->left_samples_available = 0xFFFF;
h->topright_samples_available = 0xEEEA;
sl->topleft_samples_available =
sl->top_samples_available =
sl->left_samples_available = 0xFFFF;
sl->topright_samples_available = 0xEEEA;

if (!(top_type & type_mask)) {
h->topleft_samples_available = 0xB3FF;
h->top_samples_available = 0x33FF;
h->topright_samples_available = 0x26EA;
sl->topleft_samples_available = 0xB3FF;
sl->top_samples_available = 0x33FF;
sl->topright_samples_available = 0x26EA;
}
if (IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])) {
if (IS_INTERLACED(mb_type)) {
if (!(left_type[LTOP] & type_mask)) {
h->topleft_samples_available &= 0xDFFF;
h->left_samples_available &= 0x5FFF;
sl->topleft_samples_available &= 0xDFFF;
sl->left_samples_available &= 0x5FFF;
}
if (!(left_type[LBOT] & type_mask)) {
h->topleft_samples_available &= 0xFF5F;
h->left_samples_available &= 0xFF5F;
sl->topleft_samples_available &= 0xFF5F;
sl->left_samples_available &= 0xFF5F;
}
} else {
int left_typei = h->cur_pic.mb_type[left_xy[LTOP] + h->mb_stride];

assert(left_xy[LTOP] == left_xy[LBOT]);
if (!((left_typei & type_mask) && (left_type[LTOP] & type_mask))) {
h->topleft_samples_available &= 0xDF5F;
h->left_samples_available &= 0x5F5F;
sl->topleft_samples_available &= 0xDF5F;
sl->left_samples_available &= 0x5F5F;
}
}
} else {
if (!(left_type[LTOP] & type_mask)) {
h->topleft_samples_available &= 0xDF5F;
h->left_samples_available &= 0x5F5F;
sl->topleft_samples_available &= 0xDF5F;
sl->left_samples_available &= 0x5F5F;
}
}

if (!(topleft_type & type_mask))
h->topleft_samples_available &= 0x7FFF;
sl->topleft_samples_available &= 0x7FFF;

if (!(topright_type & type_mask))
h->topright_samples_available &= 0xFBFF;
sl->topright_samples_available &= 0xFBFF;

if (IS_INTRA4x4(mb_type)) {
if (IS_INTRA4x4(top_type)) {


+ 11
- 11
libavcodec/svq3.c View File

@@ -490,9 +490,9 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
const int mb_xy = h->mb_xy;
const int b_xy = 4 * h->mb_x + 4 * h->mb_y * h->b_stride;

h->top_samples_available = (h->mb_y == 0) ? 0x33FF : 0xFFFF;
h->left_samples_available = (h->mb_x == 0) ? 0x5F5F : 0xFFFF;
h->topright_samples_available = 0xFFFF;
sl->top_samples_available = (h->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (h->mb_x == 0) ? 0x5F5F : 0xFFFF;
sl->topright_samples_available = 0xFFFF;

if (mb_type == 0) { /* SKIP */
if (h->pict_type == AV_PICTURE_TYPE_P ||
@@ -603,7 +603,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
for (i = 0; i < 4; i++)
sl->intra4x4_pred_mode_cache[scan8[0] - 1 + i * 8] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - 1] + 6 - i];
if (sl->intra4x4_pred_mode_cache[scan8[0] - 1] == -1)
h->left_samples_available = 0x5F5F;
sl->left_samples_available = 0x5F5F;
}
if (h->mb_y > 0) {
sl->intra4x4_pred_mode_cache[4 + 8 * 0] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride] + 0];
@@ -612,7 +612,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
sl->intra4x4_pred_mode_cache[7 + 8 * 0] = sl->intra4x4_pred_mode[h->mb2br_xy[mb_xy - h->mb_stride] + 3];

if (sl->intra4x4_pred_mode_cache[4 + 8 * 0] == -1)
h->top_samples_available = 0x33FF;
sl->top_samples_available = 0x33FF;
}

/* decode prediction codes for luma blocks */
@@ -646,14 +646,14 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
if (mb_type == 8) {
ff_h264_check_intra4x4_pred_mode(h, sl);

h->top_samples_available = (h->mb_y == 0) ? 0x33FF : 0xFFFF;
h->left_samples_available = (h->mb_x == 0) ? 0x5F5F : 0xFFFF;
sl->top_samples_available = (h->mb_y == 0) ? 0x33FF : 0xFFFF;
sl->left_samples_available = (h->mb_x == 0) ? 0x5F5F : 0xFFFF;
} else {
for (i = 0; i < 4; i++)
memset(&sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i], DC_128_PRED, 4);

h->top_samples_available = 0x33FF;
h->left_samples_available = 0x5F5F;
sl->top_samples_available = 0x33FF;
sl->left_samples_available = 0x5F5F;
}

mb_type = MB_TYPE_INTRA4x4;
@@ -661,7 +661,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
dir = i_mb_type_info[mb_type - 8].pred_mode;
dir = (dir >> 1) ^ 3 * (dir & 1) ^ 1;

if ((sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, dir, 0)) < 0) {
if ((sl->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, sl, dir, 0)) < 0) {
av_log(h->avctx, AV_LOG_ERROR, "ff_h264_check_intra_pred_mode < 0\n");
return sl->intra16x16_pred_mode;
}
@@ -765,7 +765,7 @@ static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
h->cur_pic.mb_type[mb_xy] = mb_type;

if (IS_INTRA(mb_type))
sl->chroma_pred_mode = ff_h264_check_intra_pred_mode(h, DC_PRED8x8, 1);
sl->chroma_pred_mode = ff_h264_check_intra_pred_mode(h, sl, DC_PRED8x8, 1);

return 0;
}


Write Preview
Loading…
Cancel
Save