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https://github.com/FFmpeg/FFmpeg.git
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mpegvideo: move dct_unquantize functions up to avoid forward declarations
This commit is contained in:
Anton Khirnov
parent
aec25b1c46
commit
a4d0c6e050
@ -42,21 +42,6 @@
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#include "thread.h"
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#include <limits.h>
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_h263_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static void dct_unquantize_h263_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale);
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static const uint8_t ff_default_chroma_qscale_table[32] = {
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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@ -123,6 +108,224 @@ const enum AVPixelFormat ff_pixfmt_list_420[] = {
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AV_PIX_FMT_NONE
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};
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = (level - 1) | 1;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = (level - 1) | 1;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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nCoeffs= s->block_last_index[n];
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quant_matrix = s->inter_matrix;
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for(i=0; i<=nCoeffs; i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = (level - 1) | 1;
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level = -level;
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} else {
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = (level - 1) | 1;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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int sum=-1;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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}
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block[j] = level;
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sum+=level;
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}
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}
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block[63]^=sum&1;
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}
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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int sum=-1;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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quant_matrix = s->inter_matrix;
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for(i=0; i<=nCoeffs; i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = -level;
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} else {
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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}
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block[j] = level;
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sum+=level;
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}
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}
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block[63]^=sum&1;
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}
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static void dct_unquantize_h263_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, qmul, qadd;
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int nCoeffs;
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assert(s->block_last_index[n]>=0);
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qmul = qscale << 1;
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if (!s->h263_aic) {
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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qadd = (qscale - 1) | 1;
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}else{
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qadd = 0;
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}
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if(s->ac_pred)
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nCoeffs=63;
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else
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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for(i=1; i<=nCoeffs; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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block[i] = level;
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}
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}
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}
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static void dct_unquantize_h263_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, qmul, qadd;
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int nCoeffs;
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assert(s->block_last_index[n]>=0);
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qadd = (qscale - 1) | 1;
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qmul = qscale << 1;
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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for(i=0; i<=nCoeffs; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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block[i] = level;
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}
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}
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}
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static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
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int (*mv)[2][4][2],
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int mb_x, int mb_y, int mb_intra, int mb_skipped)
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@ -2286,224 +2489,6 @@ void ff_mpeg_flush(AVCodecContext *avctx){
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s->pp_time=0;
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}
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = (level - 1) | 1;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = (level - 1) | 1;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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nCoeffs= s->block_last_index[n];
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quant_matrix = s->inter_matrix;
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for(i=0; i<=nCoeffs; i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = (level - 1) | 1;
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level = -level;
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} else {
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = (level - 1) | 1;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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}
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block[j] = level;
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}
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}
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}
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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int sum=-1;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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quant_matrix = s->intra_matrix;
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for(i=1;i<=nCoeffs;i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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level = -level;
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} else {
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level = (int)(level * qscale * quant_matrix[j]) >> 3;
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}
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block[j] = level;
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sum+=level;
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}
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}
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block[63]^=sum&1;
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}
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, nCoeffs;
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const uint16_t *quant_matrix;
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int sum=-1;
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if(s->alternate_scan) nCoeffs= 63;
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else nCoeffs= s->block_last_index[n];
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quant_matrix = s->inter_matrix;
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for(i=0; i<=nCoeffs; i++) {
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int j= s->intra_scantable.permutated[i];
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level = block[j];
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if (level) {
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if (level < 0) {
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level = -level;
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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level = -level;
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} else {
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level = (((level << 1) + 1) * qscale *
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((int) (quant_matrix[j]))) >> 4;
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}
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block[j] = level;
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sum+=level;
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}
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}
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block[63]^=sum&1;
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}
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static void dct_unquantize_h263_intra_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, qmul, qadd;
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int nCoeffs;
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assert(s->block_last_index[n]>=0);
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qmul = qscale << 1;
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if (!s->h263_aic) {
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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qadd = (qscale - 1) | 1;
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}else{
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qadd = 0;
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}
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if(s->ac_pred)
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nCoeffs=63;
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else
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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for(i=1; i<=nCoeffs; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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block[i] = level;
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}
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}
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}
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static void dct_unquantize_h263_inter_c(MpegEncContext *s,
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int16_t *block, int n, int qscale)
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{
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int i, level, qmul, qadd;
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int nCoeffs;
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assert(s->block_last_index[n]>=0);
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qadd = (qscale - 1) | 1;
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qmul = qscale << 1;
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
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for(i=0; i<=nCoeffs; i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
|
||||
level = level * qmul + qadd;
|
||||
}
|
||||
block[i] = level;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* set qscale and update qscale dependent variables.
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user