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Diffstat (limited to 'src/libffmpeg/libavcodec/mpeg12.c')
-rw-r--r--src/libffmpeg/libavcodec/mpeg12.c674
1 files changed, 331 insertions, 343 deletions
diff --git a/src/libffmpeg/libavcodec/mpeg12.c b/src/libffmpeg/libavcodec/mpeg12.c
index 9e57398ef..872c39c0c 100644
--- a/src/libffmpeg/libavcodec/mpeg12.c
+++ b/src/libffmpeg/libavcodec/mpeg12.c
@@ -65,18 +65,6 @@ static void mpeg1_encode_block(MpegEncContext *s,
int component);
static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code); // RAL: f_code parameter added
#endif //CONFIG_ENCODERS
-static inline int mpeg1_decode_block_inter(MpegEncContext *s,
- DCTELEM *block,
- int n);
-static inline int mpeg1_decode_block_intra(MpegEncContext *s,
- DCTELEM *block,
- int n);
-static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
- DCTELEM *block,
- int n);
-static inline int mpeg2_decode_block_intra(MpegEncContext *s,
- DCTELEM *block,
- int n);
static int mpeg_decode_motion(MpegEncContext *s, int fcode, int pred);
static void exchange_uv(MpegEncContext *s);
@@ -1035,6 +1023,337 @@ static inline int get_qscale(MpegEncContext *s)
}
}
+static inline int decode_dc(GetBitContext *gb, int component)
+{
+ int code, diff;
+
+ if (component == 0) {
+ code = get_vlc2(gb, dc_lum_vlc.table, DC_VLC_BITS, 2);
+ } else {
+ code = get_vlc2(gb, dc_chroma_vlc.table, DC_VLC_BITS, 2);
+ }
+ if (code < 0){
+ av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
+ return 0xffff;
+ }
+ if (code == 0) {
+ diff = 0;
+ } else {
+ diff = get_xbits(gb, code);
+ }
+ return diff;
+}
+
+static inline int mpeg1_decode_block_intra(MpegEncContext *s,
+ DCTELEM *block,
+ int n)
+{
+ int level, dc, diff, i, j, run;
+ int component;
+ RLTable *rl = &rl_mpeg1;
+ uint8_t * const scantable= s->intra_scantable.permutated;
+ const uint16_t *quant_matrix= s->intra_matrix;
+ const int qscale= s->qscale;
+
+ /* DC coef */
+ component = (n <= 3 ? 0 : n - 4 + 1);
+ diff = decode_dc(&s->gb, component);
+ if (diff >= 0xffff)
+ return -1;
+ dc = s->last_dc[component];
+ dc += diff;
+ s->last_dc[component] = dc;
+ block[0] = dc<<3;
+ dprintf("dc=%d diff=%d\n", dc, diff);
+ i = 0;
+ {
+ OPEN_READER(re, &s->gb);
+ /* now quantify & encode AC coefs */
+ for(;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
+
+ if(level == 127){
+ break;
+ } else if(level != 0) {
+ i += run;
+ j = scantable[i];
+ level= (level*qscale*quant_matrix[j])>>4;
+ level= (level-1)|1;
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
+ LAST_SKIP_BITS(re, &s->gb, 1);
+ } else {
+ /* escape */
+ run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
+ UPDATE_CACHE(re, &s->gb);
+ level = SHOW_SBITS(re, &s->gb, 8); SKIP_BITS(re, &s->gb, 8);
+ if (level == -128) {
+ level = SHOW_UBITS(re, &s->gb, 8) - 256; LAST_SKIP_BITS(re, &s->gb, 8);
+ } else if (level == 0) {
+ level = SHOW_UBITS(re, &s->gb, 8) ; LAST_SKIP_BITS(re, &s->gb, 8);
+ }
+ i += run;
+ j = scantable[i];
+ if(level<0){
+ level= -level;
+ level= (level*qscale*quant_matrix[j])>>4;
+ level= (level-1)|1;
+ level= -level;
+ }else{
+ level= (level*qscale*quant_matrix[j])>>4;
+ level= (level-1)|1;
+ }
+ }
+ if (i > 63){
+ av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ block[j] = level;
+ }
+ CLOSE_READER(re, &s->gb);
+ }
+ s->block_last_index[n] = i;
+ return 0;
+}
+
+static inline int mpeg1_decode_block_inter(MpegEncContext *s,
+ DCTELEM *block,
+ int n)
+{
+ int level, i, j, run;
+ RLTable *rl = &rl_mpeg1;
+ uint8_t * const scantable= s->intra_scantable.permutated;
+ const uint16_t *quant_matrix= s->inter_matrix;
+ const int qscale= s->qscale;
+
+ {
+ int v;
+ OPEN_READER(re, &s->gb);
+ i = -1;
+ /* special case for the first coef. no need to add a second vlc table */
+ UPDATE_CACHE(re, &s->gb);
+ v= SHOW_UBITS(re, &s->gb, 2);
+ if (v & 2) {
+ LAST_SKIP_BITS(re, &s->gb, 2);
+ level= (3*qscale*quant_matrix[0])>>5;
+ level= (level-1)|1;
+ if(v&1)
+ level= -level;
+ block[0] = level;
+ i++;
+ }
+
+ /* now quantify & encode AC coefs */
+ for(;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
+
+ if(level == 127){
+ break;
+ } else if(level != 0) {
+ i += run;
+ j = scantable[i];
+ level= ((level*2+1)*qscale*quant_matrix[j])>>5;
+ level= (level-1)|1;
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
+ LAST_SKIP_BITS(re, &s->gb, 1);
+ } else {
+ /* escape */
+ run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
+ UPDATE_CACHE(re, &s->gb);
+ level = SHOW_SBITS(re, &s->gb, 8); SKIP_BITS(re, &s->gb, 8);
+ if (level == -128) {
+ level = SHOW_UBITS(re, &s->gb, 8) - 256; LAST_SKIP_BITS(re, &s->gb, 8);
+ } else if (level == 0) {
+ level = SHOW_UBITS(re, &s->gb, 8) ; LAST_SKIP_BITS(re, &s->gb, 8);
+ }
+ i += run;
+ j = scantable[i];
+ if(level<0){
+ level= -level;
+ level= ((level*2+1)*qscale*quant_matrix[j])>>5;
+ level= (level-1)|1;
+ level= -level;
+ }else{
+ level= ((level*2+1)*qscale*quant_matrix[j])>>5;
+ level= (level-1)|1;
+ }
+ }
+ if (i > 63){
+ av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ block[j] = level;
+ }
+ CLOSE_READER(re, &s->gb);
+ }
+ s->block_last_index[n] = i;
+ return 0;
+}
+
+/* Also does unquantization here, since I will never support mpeg2
+ encoding */
+static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
+ DCTELEM *block,
+ int n)
+{
+ int level, i, j, run;
+ RLTable *rl = &rl_mpeg1;
+ uint8_t * const scantable= s->intra_scantable.permutated;
+ const uint16_t *quant_matrix;
+ const int qscale= s->qscale;
+ int mismatch;
+
+ mismatch = 1;
+
+ {
+ int v;
+ OPEN_READER(re, &s->gb);
+ i = -1;
+ if (n < 4)
+ quant_matrix = s->inter_matrix;
+ else
+ quant_matrix = s->chroma_inter_matrix;
+
+ /* special case for the first coef. no need to add a second vlc table */
+ UPDATE_CACHE(re, &s->gb);
+ v= SHOW_UBITS(re, &s->gb, 2);
+ if (v & 2) {
+ LAST_SKIP_BITS(re, &s->gb, 2);
+ level= (3*qscale*quant_matrix[0])>>5;
+ if(v&1)
+ level= -level;
+ block[0] = level;
+ mismatch ^= level;
+ i++;
+ }
+
+ /* now quantify & encode AC coefs */
+ for(;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
+
+ if(level == 127){
+ break;
+ } else if(level != 0) {
+ i += run;
+ j = scantable[i];
+ level= ((level*2+1)*qscale*quant_matrix[j])>>5;
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
+ LAST_SKIP_BITS(re, &s->gb, 1);
+ } else {
+ /* escape */
+ run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
+ UPDATE_CACHE(re, &s->gb);
+ level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);
+
+ i += run;
+ j = scantable[i];
+ if(level<0){
+ level= ((-level*2+1)*qscale*quant_matrix[j])>>5;
+ level= -level;
+ }else{
+ level= ((level*2+1)*qscale*quant_matrix[j])>>5;
+ }
+ }
+ if (i > 63){
+ av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ mismatch ^= level;
+ block[j] = level;
+ }
+ CLOSE_READER(re, &s->gb);
+ }
+ block[63] ^= (mismatch & 1);
+
+ s->block_last_index[n] = i;
+ return 0;
+}
+
+static inline int mpeg2_decode_block_intra(MpegEncContext *s,
+ DCTELEM *block,
+ int n)
+{
+ int level, dc, diff, i, j, run;
+ int component;
+ RLTable *rl;
+ uint8_t * const scantable= s->intra_scantable.permutated;
+ const uint16_t *quant_matrix;
+ const int qscale= s->qscale;
+ int mismatch;
+
+ /* DC coef */
+ if (n < 4){
+ quant_matrix = s->intra_matrix;
+ component = 0;
+ }else{
+ quant_matrix = s->chroma_intra_matrix;
+ component = (n&1) + 1;
+ }
+ diff = decode_dc(&s->gb, component);
+ if (diff >= 0xffff)
+ return -1;
+ dc = s->last_dc[component];
+ dc += diff;
+ s->last_dc[component] = dc;
+ block[0] = dc << (3 - s->intra_dc_precision);
+ dprintf("dc=%d\n", block[0]);
+ mismatch = block[0] ^ 1;
+ i = 0;
+ if (s->intra_vlc_format)
+ rl = &rl_mpeg2;
+ else
+ rl = &rl_mpeg1;
+
+ {
+ OPEN_READER(re, &s->gb);
+ /* now quantify & encode AC coefs */
+ for(;;) {
+ UPDATE_CACHE(re, &s->gb);
+ GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
+
+ if(level == 127){
+ break;
+ } else if(level != 0) {
+ i += run;
+ j = scantable[i];
+ level= (level*qscale*quant_matrix[j])>>4;
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
+ LAST_SKIP_BITS(re, &s->gb, 1);
+ } else {
+ /* escape */
+ run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
+ UPDATE_CACHE(re, &s->gb);
+ level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);
+ i += run;
+ j = scantable[i];
+ if(level<0){
+ level= (-level*qscale*quant_matrix[j])>>4;
+ level= -level;
+ }else{
+ level= (level*qscale*quant_matrix[j])>>4;
+ }
+ }
+ if (i > 63){
+ av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ mismatch^= level;
+ block[j] = level;
+ }
+ CLOSE_READER(re, &s->gb);
+ }
+ block[63]^= mismatch&1;
+
+ s->block_last_index[n] = i;
+ return 0;
+}
+
/* motion type (for mpeg2) */
#define MT_FIELD 1
#define MT_FRAME 2
@@ -1442,337 +1761,6 @@ static int mpeg_decode_motion(MpegEncContext *s, int fcode, int pred)
return val;
}
-static inline int decode_dc(GetBitContext *gb, int component)
-{
- int code, diff;
-
- if (component == 0) {
- code = get_vlc2(gb, dc_lum_vlc.table, DC_VLC_BITS, 2);
- } else {
- code = get_vlc2(gb, dc_chroma_vlc.table, DC_VLC_BITS, 2);
- }
- if (code < 0){
- av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
- return 0xffff;
- }
- if (code == 0) {
- diff = 0;
- } else {
- diff = get_xbits(gb, code);
- }
- return diff;
-}
-
-static inline int mpeg1_decode_block_intra(MpegEncContext *s,
- DCTELEM *block,
- int n)
-{
- int level, dc, diff, i, j, run;
- int component;
- RLTable *rl = &rl_mpeg1;
- uint8_t * const scantable= s->intra_scantable.permutated;
- const uint16_t *quant_matrix= s->intra_matrix;
- const int qscale= s->qscale;
-
- /* DC coef */
- component = (n <= 3 ? 0 : n - 4 + 1);
- diff = decode_dc(&s->gb, component);
- if (diff >= 0xffff)
- return -1;
- dc = s->last_dc[component];
- dc += diff;
- s->last_dc[component] = dc;
- block[0] = dc<<3;
- dprintf("dc=%d diff=%d\n", dc, diff);
- i = 0;
- {
- OPEN_READER(re, &s->gb);
- /* now quantify & encode AC coefs */
- for(;;) {
- UPDATE_CACHE(re, &s->gb);
- GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
-
- if(level == 127){
- break;
- } else if(level != 0) {
- i += run;
- j = scantable[i];
- level= (level*qscale*quant_matrix[j])>>4;
- level= (level-1)|1;
- level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
- LAST_SKIP_BITS(re, &s->gb, 1);
- } else {
- /* escape */
- run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
- level = SHOW_SBITS(re, &s->gb, 8); SKIP_BITS(re, &s->gb, 8);
- if (level == -128) {
- level = SHOW_UBITS(re, &s->gb, 8) - 256; LAST_SKIP_BITS(re, &s->gb, 8);
- } else if (level == 0) {
- level = SHOW_UBITS(re, &s->gb, 8) ; LAST_SKIP_BITS(re, &s->gb, 8);
- }
- i += run;
- j = scantable[i];
- if(level<0){
- level= -level;
- level= (level*qscale*quant_matrix[j])>>4;
- level= (level-1)|1;
- level= -level;
- }else{
- level= (level*qscale*quant_matrix[j])>>4;
- level= (level-1)|1;
- }
- }
- if (i > 63){
- av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- block[j] = level;
- }
- CLOSE_READER(re, &s->gb);
- }
- s->block_last_index[n] = i;
- return 0;
-}
-
-static inline int mpeg1_decode_block_inter(MpegEncContext *s,
- DCTELEM *block,
- int n)
-{
- int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
- uint8_t * const scantable= s->intra_scantable.permutated;
- const uint16_t *quant_matrix= s->inter_matrix;
- const int qscale= s->qscale;
-
- {
- int v;
- OPEN_READER(re, &s->gb);
- i = -1;
- /* special case for the first coef. no need to add a second vlc table */
- UPDATE_CACHE(re, &s->gb);
- v= SHOW_UBITS(re, &s->gb, 2);
- if (v & 2) {
- LAST_SKIP_BITS(re, &s->gb, 2);
- level= (3*qscale*quant_matrix[0])>>5;
- level= (level-1)|1;
- if(v&1)
- level= -level;
- block[0] = level;
- i++;
- }
-
- /* now quantify & encode AC coefs */
- for(;;) {
- UPDATE_CACHE(re, &s->gb);
- GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
-
- if(level == 127){
- break;
- } else if(level != 0) {
- i += run;
- j = scantable[i];
- level= ((level*2+1)*qscale*quant_matrix[j])>>5;
- level= (level-1)|1;
- level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
- LAST_SKIP_BITS(re, &s->gb, 1);
- } else {
- /* escape */
- run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
- level = SHOW_SBITS(re, &s->gb, 8); SKIP_BITS(re, &s->gb, 8);
- if (level == -128) {
- level = SHOW_UBITS(re, &s->gb, 8) - 256; LAST_SKIP_BITS(re, &s->gb, 8);
- } else if (level == 0) {
- level = SHOW_UBITS(re, &s->gb, 8) ; LAST_SKIP_BITS(re, &s->gb, 8);
- }
- i += run;
- j = scantable[i];
- if(level<0){
- level= -level;
- level= ((level*2+1)*qscale*quant_matrix[j])>>5;
- level= (level-1)|1;
- level= -level;
- }else{
- level= ((level*2+1)*qscale*quant_matrix[j])>>5;
- level= (level-1)|1;
- }
- }
- if (i > 63){
- av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- block[j] = level;
- }
- CLOSE_READER(re, &s->gb);
- }
- s->block_last_index[n] = i;
- return 0;
-}
-
-/* Also does unquantization here, since I will never support mpeg2
- encoding */
-static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
- DCTELEM *block,
- int n)
-{
- int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
- uint8_t * const scantable= s->intra_scantable.permutated;
- const uint16_t *quant_matrix;
- const int qscale= s->qscale;
- int mismatch;
-
- mismatch = 1;
-
- {
- int v;
- OPEN_READER(re, &s->gb);
- i = -1;
- if (n < 4)
- quant_matrix = s->inter_matrix;
- else
- quant_matrix = s->chroma_inter_matrix;
-
- /* special case for the first coef. no need to add a second vlc table */
- UPDATE_CACHE(re, &s->gb);
- v= SHOW_UBITS(re, &s->gb, 2);
- if (v & 2) {
- LAST_SKIP_BITS(re, &s->gb, 2);
- level= (3*qscale*quant_matrix[0])>>5;
- if(v&1)
- level= -level;
- block[0] = level;
- mismatch ^= level;
- i++;
- }
-
- /* now quantify & encode AC coefs */
- for(;;) {
- UPDATE_CACHE(re, &s->gb);
- GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
-
- if(level == 127){
- break;
- } else if(level != 0) {
- i += run;
- j = scantable[i];
- level= ((level*2+1)*qscale*quant_matrix[j])>>5;
- level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
- LAST_SKIP_BITS(re, &s->gb, 1);
- } else {
- /* escape */
- run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
- level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);
-
- i += run;
- j = scantable[i];
- if(level<0){
- level= ((-level*2+1)*qscale*quant_matrix[j])>>5;
- level= -level;
- }else{
- level= ((level*2+1)*qscale*quant_matrix[j])>>5;
- }
- }
- if (i > 63){
- av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- mismatch ^= level;
- block[j] = level;
- }
- CLOSE_READER(re, &s->gb);
- }
- block[63] ^= (mismatch & 1);
-
- s->block_last_index[n] = i;
- return 0;
-}
-
-static inline int mpeg2_decode_block_intra(MpegEncContext *s,
- DCTELEM *block,
- int n)
-{
- int level, dc, diff, i, j, run;
- int component;
- RLTable *rl;
- uint8_t * const scantable= s->intra_scantable.permutated;
- const uint16_t *quant_matrix;
- const int qscale= s->qscale;
- int mismatch;
-
- /* DC coef */
- if (n < 4){
- quant_matrix = s->intra_matrix;
- component = 0;
- }else{
- quant_matrix = s->chroma_intra_matrix;
- component = (n&1) + 1;
- }
- diff = decode_dc(&s->gb, component);
- if (diff >= 0xffff)
- return -1;
- dc = s->last_dc[component];
- dc += diff;
- s->last_dc[component] = dc;
- block[0] = dc << (3 - s->intra_dc_precision);
- dprintf("dc=%d\n", block[0]);
- mismatch = block[0] ^ 1;
- i = 0;
- if (s->intra_vlc_format)
- rl = &rl_mpeg2;
- else
- rl = &rl_mpeg1;
-
- {
- OPEN_READER(re, &s->gb);
- /* now quantify & encode AC coefs */
- for(;;) {
- UPDATE_CACHE(re, &s->gb);
- GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2);
-
- if(level == 127){
- break;
- } else if(level != 0) {
- i += run;
- j = scantable[i];
- level= (level*qscale*quant_matrix[j])>>4;
- level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
- LAST_SKIP_BITS(re, &s->gb, 1);
- } else {
- /* escape */
- run = SHOW_UBITS(re, &s->gb, 6)+1; LAST_SKIP_BITS(re, &s->gb, 6);
- UPDATE_CACHE(re, &s->gb);
- level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);
- i += run;
- j = scantable[i];
- if(level<0){
- level= (-level*qscale*quant_matrix[j])>>4;
- level= -level;
- }else{
- level= (level*qscale*quant_matrix[j])>>4;
- }
- }
- if (i > 63){
- av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- mismatch^= level;
- block[j] = level;
- }
- CLOSE_READER(re, &s->gb);
- }
- block[63]^= mismatch&1;
-
- s->block_last_index[n] = i;
- return 0;
-}
-
typedef struct Mpeg1Context {
MpegEncContext mpeg_enc_ctx;
int mpeg_enc_ctx_allocated; /* true if decoding context allocated */
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 22:03:14 +0000