#include "mpegutils.h"
#include "profiles.h"
#include "rectangle.h"
-#include "svq3.h"
#include "thread.h"
#include "vdpau_compat.h"
}
}
-/**
- * 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_intra4x4_pred_mode(const H264Context *h, H264SliceContext *sl)
-{
- static const int8_t top[12] = {
- -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
- };
- static const int8_t left[12] = {
- 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
- };
- int i;
-
- 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) {
- av_log(h->avctx, AV_LOG_ERROR,
- "top block unavailable for requested intra4x4 mode %d at %d %d\n",
- status, sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- } else if (status) {
- sl->intra4x4_pred_mode_cache[scan8[0] + i] = status;
- }
- }
- }
-
- if ((sl->left_samples_available & 0x8888) != 0x8888) {
- static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
- for (i = 0; i < 4; 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,
- "left block unavailable for requested intra4x4 mode %d at %d %d\n",
- status, sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- } else if (status) {
- sl->intra4x4_pred_mode_cache[scan8[0] + 8 * i] = status;
- }
- }
- }
-
- return 0;
-} // FIXME cleanup like ff_h264_check_intra_pred_mode
-
-/**
- * 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(const 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 };
-
- if (mode > 3U) {
- av_log(h->avctx, AV_LOG_ERROR,
- "out of range intra chroma pred mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
-
- if (!(sl->top_samples_available & 0x8000)) {
- mode = top[mode];
- if (mode < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "top block unavailable for requested intra mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
- }
-
- if ((sl->left_samples_available & 0x8080) != 0x8080) {
- mode = left[mode];
- if (mode < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "left block unavailable for requested intra mode at %d %d\n",
- sl->mb_x, sl->mb_y);
- return AVERROR_INVALIDDATA;
- }
- if (is_chroma && (sl->left_samples_available & 0x8080)) {
- // mad cow disease mode, aka MBAFF + constrained_intra_pred
- mode = ALZHEIMER_DC_L0T_PRED8x8 +
- (!(sl->left_samples_available & 0x8000)) +
- 2 * (mode == DC_128_PRED8x8);
- }
- }
-
- return mode;
-}
-
const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
const uint8_t *src,
int *dst_length, int *consumed, int length)
}
}
-int ff_pred_weight_table(H264Context *h, H264SliceContext *sl)
-{
- int list, i;
- int luma_def, chroma_def;
-
- sl->use_weight = 0;
- sl->use_weight_chroma = 0;
- sl->luma_log2_weight_denom = get_ue_golomb(&sl->gb);
- if (h->sps.chroma_format_idc)
- sl->chroma_log2_weight_denom = get_ue_golomb(&sl->gb);
-
- if (sl->luma_log2_weight_denom > 7U) {
- av_log(h->avctx, AV_LOG_ERROR, "luma_log2_weight_denom %d is out of range\n", sl->luma_log2_weight_denom);
- sl->luma_log2_weight_denom = 0;
- }
- if (sl->chroma_log2_weight_denom > 7U) {
- av_log(h->avctx, AV_LOG_ERROR, "chroma_log2_weight_denom %d is out of range\n", sl->chroma_log2_weight_denom);
- sl->chroma_log2_weight_denom = 0;
- }
-
- luma_def = 1 << sl->luma_log2_weight_denom;
- chroma_def = 1 << sl->chroma_log2_weight_denom;
-
- for (list = 0; list < 2; list++) {
- sl->luma_weight_flag[list] = 0;
- sl->chroma_weight_flag[list] = 0;
- for (i = 0; i < sl->ref_count[list]; i++) {
- int luma_weight_flag, chroma_weight_flag;
-
- luma_weight_flag = get_bits1(&sl->gb);
- if (luma_weight_flag) {
- sl->luma_weight[i][list][0] = get_se_golomb(&sl->gb);
- sl->luma_weight[i][list][1] = get_se_golomb(&sl->gb);
- if (sl->luma_weight[i][list][0] != luma_def ||
- sl->luma_weight[i][list][1] != 0) {
- sl->use_weight = 1;
- sl->luma_weight_flag[list] = 1;
- }
- } else {
- sl->luma_weight[i][list][0] = luma_def;
- sl->luma_weight[i][list][1] = 0;
- }
-
- if (h->sps.chroma_format_idc) {
- chroma_weight_flag = get_bits1(&sl->gb);
- if (chroma_weight_flag) {
- int j;
- for (j = 0; j < 2; j++) {
- sl->chroma_weight[i][list][j][0] = get_se_golomb(&sl->gb);
- sl->chroma_weight[i][list][j][1] = get_se_golomb(&sl->gb);
- if (sl->chroma_weight[i][list][j][0] != chroma_def ||
- sl->chroma_weight[i][list][j][1] != 0) {
- sl->use_weight_chroma = 1;
- sl->chroma_weight_flag[list] = 1;
- }
- }
- } else {
- int j;
- for (j = 0; j < 2; j++) {
- sl->chroma_weight[i][list][j][0] = chroma_def;
- sl->chroma_weight[i][list][j][1] = 0;
- }
- }
- }
- }
- if (sl->slice_type_nos != AV_PICTURE_TYPE_B)
- break;
- }
- sl->use_weight = sl->use_weight || sl->use_weight_chroma;
- return 0;
-}
-
/**
* instantaneous decoder refresh.
*/
(h->nal_unit_type == NAL_IDR_SLICE);
if (h->nal_unit_type == NAL_IDR_SLICE ||
- h->recovery_frame == h->frame_num) {
+ (h->recovery_frame == h->frame_num && h->nal_ref_idc)) {
h->recovery_frame = -1;
h->cur_pic_ptr->recovered = 1;
}
const uint8_t *p= buf+6;
while(cnt--){
int nalsize= AV_RB16(p) + 2;
- if(nalsize > buf_size - (p-buf) || p[2]!=0x67)
+ if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
return 0;
p += nalsize;
}
return 0;
while(cnt--){
int nalsize= AV_RB16(p) + 2;
- if(nalsize > buf_size - (p-buf) || p[2]!=0x68)
+ if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 8)
return 0;
p += nalsize;
}
projects / ffmpeg / blobdiff