openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 19:30:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

mpegvideo: support encoding with chroma intra tables that differ from luma.

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-09-25 06:46:39 +02:00
parent 73a5287482
commit 2aaf32f52f
7 changed files with 46 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/bfin/mpegvideo_bfin.c
View File

@ -61,8 +61,13 @@ static int dct_quantize_bfin (MpegEncContext *s,
dc = block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
last_non_zero = 0;
if(n<4){
bias = s->q_intra_matrix16[qscale][1];
qmat = s->q_intra_matrix16[qscale][0];
}else{
bias = s->q_chroma_intra_matrix16[qscale][1];
qmat = s->q_chroma_intra_matrix16[qscale][0];
}
} else {
start_i = 0;

15
libavcodec/dnxhdenc.c
View File

@ -77,7 +77,7 @@ static int dnxhd_10bit_dct_quantize(MpegEncContext *ctx, DCTELEM *block,
int n, int qscale, int *overflow)
{
const uint8_t *scantable= ctx->intra_scantable.scantable;
const int *qmat = ctx->q_intra_matrix[qscale];
const int *qmat = n<4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
int last_non_zero = 0;
int i;
@ -208,6 +208,11 @@ static int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
}
}
ctx->m.q_chroma_intra_matrix16 = ctx->qmatrix_c16;
ctx->m.q_chroma_intra_matrix = ctx->qmatrix_c;
ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
ctx->m.q_intra_matrix = ctx->qmatrix_l;
return 0;
fail:
return -1;
@ -498,12 +503,8 @@ static av_always_inline void dnxhd_get_blocks(DNXHDEncContext *ctx, int mb_x, in
static av_always_inline int dnxhd_switch_matrix(DNXHDEncContext *ctx, int i)
{
if (i&2) {
ctx->m.q_intra_matrix16 = ctx->qmatrix_c16;
ctx->m.q_intra_matrix = ctx->qmatrix_c;
return 1 + (i&1);
} else {
ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
ctx->m.q_intra_matrix = ctx->qmatrix_l;
return 0;
}
}
@ -535,7 +536,7 @@ static int dnxhd_calc_bits_thread(AVCodecContext *avctx, void *arg, int jobnr, i
int n = dnxhd_switch_matrix(ctx, i);
memcpy(block, src_block, 64*sizeof(*block));
last_index = ctx->m.dct_quantize(&ctx->m, block, i, qscale, &overflow);
last_index = ctx->m.dct_quantize(&ctx->m, block, 4&(2*i), qscale, &overflow);
ac_bits += dnxhd_calc_ac_bits(ctx, block, last_index);
diff = block[0] - ctx->m.last_dc[n];
@ -582,7 +583,7 @@ static int dnxhd_encode_thread(AVCodecContext *avctx, void *arg, int jobnr, int
DCTELEM *block = ctx->blocks[i];
int last_index, overflow;
int n = dnxhd_switch_matrix(ctx, i);
last_index = ctx->m.dct_quantize(&ctx->m, block, i, qscale, &overflow);
last_index = ctx->m.dct_quantize(&ctx->m, block, 4&(2*i), qscale, &overflow);
//START_TIMER;
dnxhd_encode_block(ctx, block, last_index, n);
//STOP_TIMER("encode_block");

6
libavcodec/mpegvideo.c
View File

@ -687,8 +687,10 @@ av_cold int MPV_common_init(MpegEncContext *s)
FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix , 64*32 * sizeof(int), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_chroma_intra_matrix16, 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64*32*2 * sizeof(uint16_t), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail)
FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail)
@ -846,6 +848,10 @@ void MPV_common_end(MpegEncContext *s)
av_freep(&s->error_status_table);
av_freep(&s->mb_index2xy);
av_freep(&s->lambda_table);
if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
s->q_chroma_intra_matrix= NULL;
s->q_chroma_intra_matrix16= NULL;
av_freep(&s->q_intra_matrix);
av_freep(&s->q_inter_matrix);
av_freep(&s->q_intra_matrix16);

2
libavcodec/mpegvideo.h
View File

@ -448,9 +448,11 @@ typedef struct MpegEncContext {
/** precomputed matrix (combine qscale and DCT renorm) */
int (*q_intra_matrix)[64];
int (*q_chroma_intra_matrix)[64];
int (*q_inter_matrix)[64];
/** identical to the above but for MMX & these are not permutated, second 64 entries are bias*/
uint16_t (*q_intra_matrix16)[2][64];
uint16_t (*q_chroma_intra_matrix16)[2][64];
uint16_t (*q_inter_matrix16)[2][64];
/* noise reduction */

11
libavcodec/mpegvideo_enc.c
View File

@ -2825,6 +2825,13 @@ static int encode_picture(MpegEncContext *s, int picture_number)
update_qscale(s);
}
if(s->codec_id != CODEC_ID_AMV){
if(s->q_chroma_intra_matrix != s->q_intra_matrix ) av_freep(&s->q_chroma_intra_matrix);
if(s->q_chroma_intra_matrix16 != s->q_intra_matrix16) av_freep(&s->q_chroma_intra_matrix16);
s->q_chroma_intra_matrix = s->q_intra_matrix;
s->q_chroma_intra_matrix16 = s->q_intra_matrix16;
}
s->mb_intra=0; //for the rate distortion & bit compare functions
for(i=1; i<context_count; i++){
ff_update_duplicate_context(s->thread_context[i], s);
@ -3091,7 +3098,7 @@ static int dct_quantize_trellis_c(MpegEncContext *s,
block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
last_non_zero = 0;
qmat = s->q_intra_matrix[qscale];
qmat = n < 4 ? s->q_intra_matrix[qscale] : s->q_chroma_intra_matrix[qscale];
if(s->mpeg_quant || s->out_format == FMT_MPEG1)
bias= 1<<(QMAT_SHIFT-1);
length = s->intra_ac_vlc_length;
@ -3762,7 +3769,7 @@ int dct_quantize_c(MpegEncContext *s,
block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
last_non_zero = 0;
qmat = s->q_intra_matrix[qscale];
qmat = n < 4 ? s->q_intra_matrix[qscale] : s->q_chroma_intra_matrix[qscale];
bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
} else {
start_i = 0;

5
libavcodec/ppc/mpegvideo_altivec.c
View File

@ -267,8 +267,13 @@ static int dct_quantize_altivec(MpegEncContext* s,
baseVector = vec_cts(vec_splat(row0, 0), 0);
vec_ste(baseVector, 0, &oldBaseValue);
if(n<4){
qmat = (vector signed int*)s->q_intra_matrix[qscale];
biasAddr = &(s->intra_quant_bias);
}else{
qmat = (vector signed int*)s->q_chroma_intra_matrix[qscale];
biasAddr = &(s->intra_quant_bias);
}
} else {
qmat = (vector signed int*)s->q_inter_matrix[qscale];
biasAddr = &(s->inter_quant_bias);

11
libavcodec/x86/mpegvideo_mmx_template.c
View File

@ -110,10 +110,15 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
if (s->mb_intra) {
int dummy;
if (n < 4)
if (n < 4){
q = s->y_dc_scale;
else
bias = s->q_intra_matrix16[qscale][1];
qmat = s->q_intra_matrix16[qscale][0];
}else{
q = s->c_dc_scale;
bias = s->q_chroma_intra_matrix16[qscale][1];
qmat = s->q_chroma_intra_matrix16[qscale][0];
}
/* note: block[0] is assumed to be positive */
if (!s->h263_aic) {
__asm__ volatile (
@ -128,8 +133,6 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
block[0]=0; //avoid fake overflow
// temp_block[0] = (block[0] + (q >> 1)) / q;
last_non_zero_p1 = 1;
bias = s->q_intra_matrix16[qscale][1];
qmat = s->q_intra_matrix16[qscale][0];
} else {
last_non_zero_p1 = 0;
bias = s->q_inter_matrix16[qscale][1];