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Diffstat (limited to 'src/libffmpeg/libavcodec/mpeg12.c')
-rw-r--r--src/libffmpeg/libavcodec/mpeg12.c145
1 files changed, 82 insertions, 63 deletions
diff --git a/src/libffmpeg/libavcodec/mpeg12.c b/src/libffmpeg/libavcodec/mpeg12.c
index ddecae85d..c268cf707 100644
--- a/src/libffmpeg/libavcodec/mpeg12.c
+++ b/src/libffmpeg/libavcodec/mpeg12.c
@@ -101,8 +101,8 @@ const enum PixelFormat pixfmt_xvmc_mpg2_420[] = {
static uint8_t (*mv_penalty)[MAX_MV*2+1]= NULL;
static uint8_t fcode_tab[MAX_MV*2+1];
-static uint32_t uni_mpeg1_ac_vlc_bits[64*64*2];
static uint8_t uni_mpeg1_ac_vlc_len [64*64*2];
+static uint8_t uni_mpeg2_ac_vlc_len [64*64*2];
/* simple include everything table for dc, first byte is bits number next 3 are code*/
static uint32_t mpeg1_lum_dc_uni[512];
@@ -155,7 +155,7 @@ static void init_2d_vlc_rl(RLTable *rl, int use_static)
}
#ifdef CONFIG_ENCODERS
-static void init_uni_ac_vlc(RLTable *rl, uint32_t *uni_ac_vlc_bits, uint8_t *uni_ac_vlc_len){
+static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){
int i;
for(i=0; i<128; i++){
@@ -174,11 +174,11 @@ static void init_uni_ac_vlc(RLTable *rl, uint32_t *uni_ac_vlc_bits, uint8_t *uni
if (code < 111 /* rl->n */) {
/* store the vlc & sign at once */
- len= mpeg1_vlc[code][1]+1;
- bits= (mpeg1_vlc[code][0]<<1) + sign;
+ len= rl->table_vlc[code][1]+1;
+ bits= (rl->table_vlc[code][0]<<1) + sign;
} else {
- len= mpeg1_vlc[111/*rl->n*/][1]+6;
- bits= mpeg1_vlc[111/*rl->n*/][0]<<6;
+ len= rl->table_vlc[111/*rl->n*/][1]+6;
+ bits= rl->table_vlc[111/*rl->n*/][0]<<6;
bits|= run;
if (alevel < 128) {
@@ -195,7 +195,6 @@ static void init_uni_ac_vlc(RLTable *rl, uint32_t *uni_ac_vlc_bits, uint8_t *uni
}
}
- uni_ac_vlc_bits[UNI_AC_ENC_INDEX(run, i)]= bits;
uni_ac_vlc_len [UNI_AC_ENC_INDEX(run, i)]= len;
}
}
@@ -208,7 +207,7 @@ static int find_frame_rate_index(MpegEncContext *s){
int64_t d;
for(i=1;i<14;i++) {
- int64_t n0= 1001LL/frame_rate_tab[i].den*frame_rate_tab[i].num*s->avctx->time_base.num;
+ int64_t n0= 1001LL/ff_frame_rate_tab[i].den*ff_frame_rate_tab[i].num*s->avctx->time_base.num;
int64_t n1= 1001LL*s->avctx->time_base.den;
if(s->avctx->strict_std_compliance > FF_COMPLIANCE_INOFFICIAL && i>=9) break;
@@ -240,6 +239,12 @@ static int encode_init(AVCodecContext *avctx)
}
}
+ if(avctx->profile == FF_PROFILE_UNKNOWN)
+ avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0;
+
+ if(avctx->level == FF_LEVEL_UNKNOWN)
+ avctx->level = s->chroma_format == CHROMA_420 ? 8 : 5;
+
return 0;
}
@@ -264,7 +269,7 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA)
if (s->current_picture.key_frame) {
- AVRational framerate= frame_rate_tab[s->frame_rate_index];
+ AVRational framerate= ff_frame_rate_tab[s->frame_rate_index];
/* mpeg1 header repeated every gop */
put_header(s, SEQ_START_CODE);
@@ -327,22 +332,14 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
if(s->codec_id == CODEC_ID_MPEG2VIDEO){
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 1); //seq ext
- put_bits(&s->pb, 1, 0); //esc
- if(s->avctx->profile == FF_PROFILE_UNKNOWN){
- put_bits(&s->pb, 3, 4); //profile
- }else{
- put_bits(&s->pb, 3, s->avctx->profile); //profile
- }
+ put_bits(&s->pb, 1, s->chroma_format == CHROMA_422); //escx
- if(s->avctx->level == FF_LEVEL_UNKNOWN){
- put_bits(&s->pb, 4, 8); //level
- }else{
- put_bits(&s->pb, 4, s->avctx->level); //level
- }
+ put_bits(&s->pb, 3, s->avctx->profile); //profile
+ put_bits(&s->pb, 4, s->avctx->level); //level
put_bits(&s->pb, 1, s->progressive_sequence);
- put_bits(&s->pb, 2, 1); //chroma format 4:2:0
+ put_bits(&s->pb, 2, s->chroma_format);
put_bits(&s->pb, 2, 0); //horizontal size ext
put_bits(&s->pb, 2, 0); //vertical size ext
put_bits(&s->pb, 12, v>>18); //bitrate ext
@@ -476,7 +473,7 @@ void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
put_bits(&s->pb, 1, s->alternate_scan);
put_bits(&s->pb, 1, s->repeat_first_field);
s->progressive_frame = s->progressive_sequence;
- put_bits(&s->pb, 1, s->chroma_420_type=s->progressive_frame);
+ put_bits(&s->pb, 1, s->chroma_format == CHROMA_420 ? s->progressive_frame : 0); /* chroma_420_type */
put_bits(&s->pb, 1, s->progressive_frame);
put_bits(&s->pb, 1, 0); //composite_display_flag
}
@@ -504,9 +501,10 @@ static inline void put_mb_modes(MpegEncContext *s, int n, int bits,
}
}
-void mpeg1_encode_mb(MpegEncContext *s,
- DCTELEM block[6][64],
- int motion_x, int motion_y)
+static always_inline void mpeg1_encode_mb_internal(MpegEncContext *s,
+ DCTELEM block[6][64],
+ int motion_x, int motion_y,
+ int mb_block_count)
{
int i, cbp;
const int mb_x = s->mb_x;
@@ -515,9 +513,9 @@ void mpeg1_encode_mb(MpegEncContext *s,
/* compute cbp */
cbp = 0;
- for(i=0;i<6;i++) {
+ for(i=0;i<mb_block_count;i++) {
if (s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
+ cbp |= 1 << (mb_block_count - 1 - i);
}
if (cbp == 0 && !first_mb && s->mv_type == MV_TYPE_16X16 &&
@@ -623,8 +621,14 @@ void mpeg1_encode_mb(MpegEncContext *s,
}
s->mv_bits+= get_bits_diff(s);
}
- if(cbp)
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ if(cbp) {
+ if (s->chroma_y_shift) {
+ put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ } else {
+ put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
+ put_bits(&s->pb, 2, cbp & 3);
+ }
+ }
s->f_count++;
} else{
static const int mb_type_len[4]={0,3,4,2}; //bak,for,bi
@@ -702,11 +706,17 @@ void mpeg1_encode_mb(MpegEncContext *s,
}
}
s->mv_bits += get_bits_diff(s);
- if(cbp)
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ if(cbp) {
+ if (s->chroma_y_shift) {
+ put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ } else {
+ put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
+ put_bits(&s->pb, 2, cbp & 3);
+ }
+ }
}
- for(i=0;i<6;i++) {
- if (cbp & (1 << (5 - i))) {
+ for(i=0;i<mb_block_count;i++) {
+ if (cbp & (1 << (mb_block_count - 1 - i))) {
mpeg1_encode_block(s, block[i], i);
}
}
@@ -718,6 +728,12 @@ void mpeg1_encode_mb(MpegEncContext *s,
}
}
+void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
+{
+ if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6);
+ else mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8);
+}
+
// RAL: Parameter added: f_or_b_code
static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code)
{
@@ -775,6 +791,8 @@ void ff_mpeg1_encode_init(MpegEncContext *s)
done=1;
init_rl(&rl_mpeg1, 1);
+ if(s->intra_vlc_format)
+ init_rl(&rl_mpeg2, 1);
for(i=0; i<64; i++)
{
@@ -782,7 +800,9 @@ void ff_mpeg1_encode_init(MpegEncContext *s)
mpeg1_index_run[0][i]= rl_mpeg1.index_run[0][i];
}
- init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_bits, uni_mpeg1_ac_vlc_len);
+ init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_len);
+ if(s->intra_vlc_format)
+ init_uni_ac_vlc(&rl_mpeg2, uni_mpeg2_ac_vlc_len);
/* build unified dc encoding tables */
for(i=-255; i<256; i++)
@@ -849,9 +869,14 @@ void ff_mpeg1_encode_init(MpegEncContext *s)
s->min_qcoeff=-2047;
s->max_qcoeff= 2047;
}
- s->intra_ac_vlc_length=
+ if (s->intra_vlc_format) {
+ s->intra_ac_vlc_length=
+ s->intra_ac_vlc_last_length= uni_mpeg2_ac_vlc_len;
+ } else {
+ s->intra_ac_vlc_length=
+ s->intra_ac_vlc_last_length= uni_mpeg1_ac_vlc_len;
+ }
s->inter_ac_vlc_length=
- s->intra_ac_vlc_last_length=
s->inter_ac_vlc_last_length= uni_mpeg1_ac_vlc_len;
}
@@ -898,24 +923,20 @@ static void mpeg1_encode_block(MpegEncContext *s,
{
int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign;
int code, component;
-// RLTable *rl = &rl_mpeg1;
+ const uint16_t (*table_vlc)[2] = rl_mpeg1.table_vlc;
last_index = s->block_last_index[n];
/* DC coef */
if (s->mb_intra) {
- component = (n <= 3 ? 0 : n - 4 + 1);
+ component = (n <= 3 ? 0 : (n&1) + 1);
dc = block[0]; /* overflow is impossible */
diff = dc - s->last_dc[component];
encode_dc(s, diff, component);
s->last_dc[component] = dc;
i = 1;
-/*
if (s->intra_vlc_format)
- rl = &rl_mpeg2;
- else
- rl = &rl_mpeg1;
-*/
+ table_vlc = rl_mpeg2.table_vlc;
} else {
/* encode the first coefficient : needs to be done here because
it is handled slightly differently */
@@ -950,14 +971,13 @@ static void mpeg1_encode_block(MpegEncContext *s,
MASK_ABS(sign, alevel)
sign&=1;
-// code = get_rl_index(rl, 0, run, alevel);
if (alevel <= mpeg1_max_level[0][run]){
code= mpeg1_index_run[0][run] + alevel - 1;
/* store the vlc & sign at once */
- put_bits(&s->pb, mpeg1_vlc[code][1]+1, (mpeg1_vlc[code][0]<<1) + sign);
+ put_bits(&s->pb, table_vlc[code][1]+1, (table_vlc[code][0]<<1) + sign);
} else {
/* escape seems to be pretty rare <5% so i dont optimize it */
- put_bits(&s->pb, mpeg1_vlc[111/*rl->n*/][1], mpeg1_vlc[111/*rl->n*/][0]);
+ put_bits(&s->pb, table_vlc[111][1], table_vlc[111][0]);
/* escape: only clip in this case */
put_bits(&s->pb, 6, run);
if(s->codec_id == CODEC_ID_MPEG1VIDEO){
@@ -978,7 +998,7 @@ static void mpeg1_encode_block(MpegEncContext *s,
}
}
/* end of block */
- put_bits(&s->pb, 2, 0x2);
+ put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]);
}
#endif //CONFIG_ENCODERS
@@ -2108,8 +2128,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
if(avctx->sub_id==1){//s->codec_id==avctx->codec_id==CODEC_ID
//mpeg1 fps
- avctx->time_base.den = frame_rate_tab[s->frame_rate_index].num;
- avctx->time_base.num= frame_rate_tab[s->frame_rate_index].den;
+ avctx->time_base.den= ff_frame_rate_tab[s->frame_rate_index].num;
+ avctx->time_base.num= ff_frame_rate_tab[s->frame_rate_index].den;
//mpeg1 aspect
avctx->sample_aspect_ratio= av_d2q(
1.0/mpeg1_aspect[s->aspect_ratio_info], 255);
@@ -2119,8 +2139,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
av_reduce(
&s->avctx->time_base.den,
&s->avctx->time_base.num,
- frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num,
- frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
+ ff_frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num,
+ ff_frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
1<<30);
//mpeg2 aspect
if(s->aspect_ratio_info > 1){
@@ -2625,10 +2645,13 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y,
if(s->mb_y<<field_pic >= s->mb_height){
int left= s->gb.size_in_bits - get_bits_count(&s->gb);
+ int is_d10= s->chroma_format==2 && s->pict_type==I_TYPE && avctx->profile==0 && avctx->level==5
+ && s->intra_dc_precision == 2 && s->q_scale_type == 1 && s->alternate_scan == 0
+ && s->progressive_frame == 0 /* vbv_delay == 0xBBB || 0xE10*/;
- if(left < 0 || (left && show_bits(&s->gb, FFMIN(left, 23)))
+ if(left < 0 || (left && show_bits(&s->gb, FFMIN(left, 23)) && !is_d10)
|| (avctx->error_resilience >= FF_ER_AGGRESSIVE && left>8)){
- av_log(avctx, AV_LOG_ERROR, "end mismatch left=%d\n", left);
+ av_log(avctx, AV_LOG_ERROR, "end mismatch left=%d %0X\n", left, show_bits(&s->gb, FFMIN(left, 23)));
return -1;
}else
goto eos;
@@ -2793,12 +2816,10 @@ static int mpeg1_decode_sequence(AVCodecContext *avctx,
s->chroma_intra_matrix[j] = v;
}
#ifdef DEBUG
-/*
dprintf("intra matrix present\n");
for(i=0;i<64;i++)
dprintf(" %d", s->intra_matrix[s->dsp.idct_permutation[i]]);
- printf("\n");
-*/
+ dprintf("\n");
#endif
} else {
for(i=0;i<64;i++) {
@@ -2820,12 +2841,10 @@ static int mpeg1_decode_sequence(AVCodecContext *avctx,
s->chroma_inter_matrix[j] = v;
}
#ifdef DEBUG
-/*
dprintf("non intra matrix present\n");
for(i=0;i<64;i++)
dprintf(" %d", s->inter_matrix[s->dsp.idct_permutation[i]]);
- printf("\n");
-*/
+ dprintf("\n");
#endif
} else {
for(i=0;i<64;i++) {
@@ -3125,7 +3144,7 @@ static int mpeg_decode_frame(AVCodecContext *avctx,
/* skip b frames if we dont have reference frames */
if(s2->pict_type==B_TYPE) break;
/* skip P frames if we dont have reference frame no valid header */
- if(s2->pict_type==P_TYPE && !s2->first_slice) break;
+// if(s2->pict_type==P_TYPE && s2->first_field && !s2->first_slice) break;
}
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s2->pict_type==B_TYPE) break;
@@ -3240,7 +3259,7 @@ AVCodec mpeg1video_encoder = {
encode_init,
MPV_encode_picture,
MPV_encode_end,
- .supported_framerates= frame_rate_tab+1,
+ .supported_framerates= ff_frame_rate_tab+1,
.pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
.capabilities= CODEC_CAP_DELAY,
};
@@ -3253,8 +3272,8 @@ AVCodec mpeg2video_encoder = {
encode_init,
MPV_encode_picture,
MPV_encode_end,
- .supported_framerates= frame_rate_tab+1,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
+ .supported_framerates= ff_frame_rate_tab+1,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, -1},
.capabilities= CODEC_CAP_DELAY,
};
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 21:29:36 +0000