ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
- s->picture_structure= PICT_FRAME;
-
return 0;
}
pic->mb_type= pic->mb_type_base + s->mb_stride+1;
if(s->out_format == FMT_H264){
for(i=0; i<2; i++){
- CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b4_array_size+1) * sizeof(int16_t))
- pic->motion_val[i]= pic->motion_val_base[i]+1;
+ CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b4_array_size+2) * sizeof(int16_t))
+ pic->motion_val[i]= pic->motion_val_base[i]+2;
CHECKED_ALLOCZ(pic->ref_index[i] , b8_array_size * sizeof(uint8_t))
}
pic->motion_subsample_log2= 2;
}else if(s->out_format == FMT_H263 || s->encoding || (s->avctx->debug&FF_DEBUG_MV) || (s->avctx->debug_mv)){
for(i=0; i<2; i++){
- CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b8_array_size+1) * sizeof(int16_t)*2) //FIXME
- pic->motion_val[i]= pic->motion_val_base[i]+1;
+ CHECKED_ALLOCZ(pic->motion_val_base[i], 2 * (b8_array_size+2) * sizeof(int16_t)*2) //FIXME
+ pic->motion_val[i]= pic->motion_val_base[i]+2;
}
pic->motion_subsample_log2= 3;
}
+ if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
+ CHECKED_ALLOCZ(pic->dct_coeff, 64 * mb_array_size * sizeof(DCTELEM)*6)
+ }
pic->qstride= s->mb_stride;
CHECKED_ALLOCZ(pic->pan_scan , 1 * sizeof(AVPanScan))
}
av_freep(&pic->mbskip_table);
av_freep(&pic->qscale_table);
av_freep(&pic->mb_type_base);
+ av_freep(&pic->dct_coeff);
av_freep(&pic->pan_scan);
pic->mb_type= NULL;
for(i=0; i<2; i++){
static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base){
int i;
+ // edge emu needs blocksize + filter length - 1 (=17x17 for halfpel / 21x21 for h264)
CHECKED_ALLOCZ(s->allocated_edge_emu_buffer, (s->width+64)*2*17*2); //(width + edge + align)*interlaced*MBsize*tolerance
s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*17;
//FIXME should be linesize instead of s->width*2 but that isnt known before get_buffer()
- CHECKED_ALLOCZ(s->me.scratchpad, s->width*2*16*2*sizeof(uint8_t))
+ CHECKED_ALLOCZ(s->me.scratchpad, (s->width+64)*2*16*2*sizeof(uint8_t))
s->rd_scratchpad= s->me.scratchpad;
s->b_scratchpad= s->me.scratchpad;
s->obmc_scratchpad= s->me.scratchpad + 16;
CHECKED_ALLOCZ(s->dct_error_sum, 2 * 64 * sizeof(int))
}
}
- CHECKED_ALLOCZ(s->blocks, 64*6*2 * sizeof(DCTELEM))
+ CHECKED_ALLOCZ(s->blocks, 64*12*2 * sizeof(DCTELEM))
s->block= s->blocks[0];
for(i=0;i<12;i++){
COPY(me.map_generation);
COPY(pb);
COPY(dct_error_sum);
+ COPY(dct_count[0]);
+ COPY(dct_count[1]);
#undef COPY
}
-static void update_duplicate_context(MpegEncContext *dst, MpegEncContext *src){
+void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src){
MpegEncContext bak;
+ int i;
//FIXME copy only needed parts
//START_TIMER
backup_duplicate_context(&bak, dst);
memcpy(dst, src, sizeof(MpegEncContext));
backup_duplicate_context(dst, &bak);
+ for(i=0;i<12;i++){
+ dst->pblocks[i] = (short *)(&dst->block[i]);
+ }
//STOP_TIMER("update_duplicate_context") //about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
}
#undef COPY
}
-/* init common structure for both encoder and decoder */
+/**
+ * sets the given MpegEncContext to common defaults (same for encoding and decoding).
+ * the changed fields will not depend upon the prior state of the MpegEncContext.
+ */
+static void MPV_common_defaults(MpegEncContext *s){
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ s->chroma_qscale_table= ff_default_chroma_qscale_table;
+ s->progressive_frame= 1;
+ s->progressive_sequence= 1;
+ s->picture_structure= PICT_FRAME;
+
+ s->coded_picture_number = 0;
+ s->picture_number = 0;
+ s->input_picture_number = 0;
+
+ s->picture_in_gop_number = 0;
+
+ s->f_code = 1;
+ s->b_code = 1;
+}
+
+/**
+ * sets the given MpegEncContext to defaults for decoding.
+ * the changed fields will not depend upon the prior state of the MpegEncContext.
+ */
+void MPV_decode_defaults(MpegEncContext *s){
+ MPV_common_defaults(s);
+}
+
+/**
+ * sets the given MpegEncContext to defaults for encoding.
+ * the changed fields will not depend upon the prior state of the MpegEncContext.
+ */
+
+#ifdef CONFIG_ENCODERS
+void MPV_encode_defaults(MpegEncContext *s){
+ static int done=0;
+
+ MPV_common_defaults(s);
+
+ if(!done){
+ int i;
+ done=1;
+
+ default_mv_penalty= av_mallocz( sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1) );
+ memset(default_mv_penalty, 0, sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1));
+ memset(default_fcode_tab , 0, sizeof(uint8_t)*(2*MAX_MV+1));
+
+ for(i=-16; i<16; i++){
+ default_fcode_tab[i + MAX_MV]= 1;
+ }
+ }
+ s->me.mv_penalty= default_mv_penalty;
+ s->fcode_tab= default_fcode_tab;
+}
+#endif //CONFIG_ENCODERS
+
+/**
+ * init common structure for both encoder and decoder.
+ * this assumes that some variables like width/height are already set
+ */
int MPV_common_init(MpegEncContext *s)
{
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
s->block_wrap[3]= s->mb_width*2 + 2;
s->block_wrap[4]=
s->block_wrap[5]= s->mb_width + 2;
-
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
- s->chroma_qscale_table= ff_default_chroma_qscale_table;
- if (!s->encoding)
- s->progressive_sequence= 1;
- s->progressive_frame= 1;
- s->coded_picture_number = 0;
-
+
y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
c_size = (s->mb_width + 2) * (s->mb_height + 2);
yc_size = y_size + 2 * c_size;
-
+
/* convert fourcc to upper case */
s->avctx->codec_tag= toupper( s->avctx->codec_tag &0xFF)
+ (toupper((s->avctx->codec_tag>>8 )&0xFF)<<8 )
CHECKED_ALLOCZ(s->mbintra_table, mb_array_size);
memset(s->mbintra_table, 1, mb_array_size);
- /* default structure is frame */
- s->picture_structure = PICT_FRAME;
-
/* init macroblock skip table */
CHECKED_ALLOCZ(s->mbskip_table, mb_array_size+2);
//Note the +1 is for a quicker mpeg4 slice_end detection
av_freep(&s->q_inter_matrix16);
av_freep(&s->input_picture);
av_freep(&s->reordered_input_picture);
- av_freep(&s->dct_error_sum);
av_freep(&s->dct_offset);
if(s->picture){
s->last_picture_ptr=
s->next_picture_ptr=
s->current_picture_ptr= NULL;
+
for(i=0; i<3; i++)
- if (s->visualization_buffer[i])
- av_free(s->visualization_buffer[i]);
+ av_freep(&s->visualization_buffer[i]);
}
#ifdef CONFIG_ENCODERS
MpegEncContext *s = avctx->priv_data;
int i, dummy;
int chroma_h_shift, chroma_v_shift;
+
+ MPV_encode_defaults(s);
avctx->pix_fmt = PIX_FMT_YUV420P; // FIXME
if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isnt recommanded!\n");
- }
+ }
+
+ if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
+ && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
+ && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
+ av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
+ }
+
if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
&& s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
return -1;
}
+ if(s->avctx->thread_count > MAX_THREADS || 16*s->avctx->thread_count > s->height){
+ av_log(avctx, AV_LOG_ERROR, "too many threads\n");
+ return -1;
+ }
+
if(s->avctx->thread_count > 1)
s->rtp_mode= 1;
return -1;
}
- { /* set up some save defaults, some codecs might override them later */
- static int done=0;
- if(!done){
- int i;
- done=1;
-
- default_mv_penalty= av_mallocz( sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1) );
- memset(default_mv_penalty, 0, sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1));
- memset(default_fcode_tab , 0, sizeof(uint8_t)*(2*MAX_MV+1));
-
- for(i=-16; i<16; i++){
- default_fcode_tab[i + MAX_MV]= 1;
- }
- }
- }
- s->me.mv_penalty= default_mv_penalty;
- s->fcode_tab= default_fcode_tab;
-
- /* dont use mv_penalty table for crap MV as it would be confused */
- //FIXME remove after fixing / removing old ME
- if (s->me_method < ME_EPZS) s->me.mv_penalty = default_mv_penalty;
-
s->encoding = 1;
/* init */
ff_mpeg1_encode_init(s);
#endif
- /* init default q matrix */
+ /* init q matrix */
for(i=0;i<64;i++) {
int j= s->dsp.idct_permutation[i];
#ifdef CONFIG_RISKY
if(ff_rate_control_init(s) < 0)
return -1;
-
- s->picture_number = 0;
- s->input_picture_number = 0;
- s->picture_in_gop_number = 0;
- /* motion detector init */
- s->f_code = 1;
- s->b_code = 1;
-
+
return 0;
}
* @param color color of the arrow
*/
static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){
- int t, x, y, f;
+ int t, x, y, fr, f;
sx= clip(sx, 0, w-1);
sy= clip(sy, 0, h-1);
ex-= sx;
f= ((ey-sy)<<16)/ex;
for(x= 0; x <= ex; x++){
- y= ((x*f) + (1<<15))>>16;
- buf[y*stride + x]+= color;
+ y = (x*f)>>16;
+ fr= (x*f)&0xFFFF;
+ buf[ y *stride + x]+= (color*(0x10000-fr))>>16;
+ buf[(y+1)*stride + x]+= (color* fr )>>16;
}
}else{
if(sy > ey){
if(ey) f= ((ex-sx)<<16)/ey;
else f= 0;
for(y= 0; y <= ey; y++){
- x= ((y*f) + (1<<15))>>16;
- buf[y*stride + x]+= color;
+ x = (y*f)>>16;
+ fr= (y*f)&0xFFFF;
+ buf[y*stride + x ]+= (color*(0x10000-fr))>>16;;
+ buf[y*stride + x+1]+= (color* fr )>>16;;
}
}
}
copy_picture_attributes(pic, pic_arg);
pic->display_picture_number= s->input_picture_number++;
+ if(pic->pts != AV_NOPTS_VALUE){
+ s->user_specified_pts= pic->pts;
+ }else{
+ if(s->user_specified_pts){
+ pic->pts= s->user_specified_pts + AV_TIME_BASE*(int64_t)s->avctx->frame_rate_base / s->avctx->frame_rate;
+ av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%Ld)\n", pic->pts);
+ }else{
+ pic->pts= av_rescale(pic->display_picture_number*(int64_t)s->avctx->frame_rate_base, AV_TIME_BASE, s->avctx->frame_rate);
+ }
+ }
}
-
+
/* shift buffer entries */
for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
s->input_picture[i-1]= s->input_picture[i];
}
for(i=0; i<avctx->thread_count; i++){
- int y= s->thread_context[i]->start_mb_y;
+ int start_y= s->thread_context[i]->start_mb_y;
+ int end_y= s->thread_context[i]-> end_mb_y;
int h= s->mb_height;
- uint8_t *start= buf + buf_size* y /h;
- uint8_t *end = buf + buf_size*(y+1)/h;
+ uint8_t *start= buf + buf_size*start_y/h;
+ uint8_t *end = buf + buf_size* end_y/h;
init_put_bits(&s->thread_context[i]->pb, start, end - start);
}
}
/* update mpeg1/2 vbv_delay for CBR */
- if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate){
+ if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
+ && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
int vbv_delay;
assert(s->repeat_first_field==0);
static inline void gmc1_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int dest_offset,
- uint8_t **ref_picture, int src_offset)
+ uint8_t **ref_picture)
{
uint8_t *ptr;
int offset, src_x, src_y, linesize, uvlinesize;
linesize = s->linesize;
uvlinesize = s->uvlinesize;
- ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
+ ptr = ref_picture[0] + (src_y * linesize) + src_x;
- dest_y+=dest_offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if( (unsigned)src_x >= s->h_edge_pos - 17
|| (unsigned)src_y >= s->v_edge_pos - 17){
if (src_y == s->height>>1)
motion_y =0;
- offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
+ offset = (src_y * uvlinesize) + src_x;
ptr = ref_picture[1] + offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if( (unsigned)src_x >= (s->h_edge_pos>>1) - 9
emu=1;
}
}
- s->dsp.gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
+ s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
ptr = ref_picture[2] + offset;
if(emu){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
ptr= s->edge_emu_buffer;
}
- s->dsp.gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
+ s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
return;
}
static inline void gmc_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int dest_offset,
- uint8_t **ref_picture, int src_offset)
+ uint8_t **ref_picture)
{
uint8_t *ptr;
int linesize, uvlinesize;
linesize = s->linesize;
uvlinesize = s->uvlinesize;
- ptr = ref_picture[0] + src_offset;
+ ptr = ref_picture[0];
- dest_y+=dest_offset;
-
ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
if(s->flags&CODEC_FLAG_GRAY) return;
-
- dest_cb+=dest_offset>>1;
- dest_cr+=dest_offset>>1;
-
ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8;
oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
- ptr = ref_picture[1] + (src_offset>>1);
+ ptr = ref_picture[1];
s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
ox,
oy,
a+1, (1<<(2*a+1)) - s->no_rounding,
s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr = ref_picture[2] + (src_offset>>1);
+ ptr = ref_picture[2];
s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
ox,
oy,
}
static inline int hpel_motion(MpegEncContext *s,
- uint8_t *dest, uint8_t *src,
+ uint8_t *dest, uint8_t *src,
+ int field_based, int field_select,
int src_x, int src_y,
int width, int height, int stride,
int h_edge_pos, int v_edge_pos,
if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
if( (unsigned)src_x > h_edge_pos - (motion_x&1) - w
|| (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
- ff_emulated_edge_mc(s->edge_emu_buffer, src, stride, w+1, h+1,
- src_x, src_y, h_edge_pos, v_edge_pos);
+ ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based,
+ src_x, src_y<<field_based, h_edge_pos, s->v_edge_pos);
src= s->edge_emu_buffer;
emu=1;
}
}
+ if(field_select)
+ src += s->linesize;
pix_op[dxy](dest, src, stride, h);
return emu;
}
/* apply one mpeg motion vector to the three components */
static inline void mpeg_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int dest_offset,
- uint8_t **ref_picture, int src_offset,
- int field_based, op_pixels_func (*pix_op)[4],
+ int field_based, int bottom_field, int field_select,
+ uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
int motion_x, int motion_y, int h)
{
- uint8_t *ptr;
- int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, uvlinesize;
- int emu=0;
+ uint8_t *ptr_y, *ptr_cb, *ptr_cr;
+ int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
+
#if 0
if(s->quarter_sample)
{
}
#endif
- height = s->height >> field_based;
v_edge_pos = s->v_edge_pos >> field_based;
+ linesize = s->current_picture.linesize[0] << field_based;
uvlinesize = s->current_picture.linesize[1] << field_based;
- emu= hpel_motion(s,
- dest_y + dest_offset, ref_picture[0] + src_offset,
- s->mb_x * 16, s->mb_y * (16 >> field_based),
- s->width, height, s->current_picture.linesize[0] << field_based,
- s->h_edge_pos, v_edge_pos,
- 16, h, pix_op[0],
- motion_x, motion_y);
-
-
- if(s->flags&CODEC_FLAG_GRAY) return;
+ dxy = ((motion_y & 1) << 1) | (motion_x & 1);
+ src_x = s->mb_x* 16 + (motion_x >> 1);
+ src_y = s->mb_y*(16>>field_based) + (motion_y >> 1);
if (s->out_format == FMT_H263) {
- dxy = 0;
- if ((motion_x & 3) != 0)
- dxy |= 1;
- if ((motion_y & 3) != 0)
- dxy |= 2;
- mx = motion_x >> 2;
- my = motion_y >> 2;
+ if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
+ mx = (motion_x>>1)|(motion_x&1);
+ my = motion_y >>1;
+ uvdxy = ((my & 1) << 1) | (mx & 1);
+ uvsrc_x = s->mb_x* 8 + (mx >> 1);
+ uvsrc_y = s->mb_y*(8>>field_based) + (my >> 1);
+ }else{
+ uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
+ uvsrc_x = src_x>>1;
+ uvsrc_y = src_y>>1;
+ }
} else {
mx = motion_x / 2;
my = motion_y / 2;
- dxy = ((my & 1) << 1) | (mx & 1);
- mx >>= 1;
- my >>= 1;
+ uvdxy = ((my & 1) << 1) | (mx & 1);
+ uvsrc_x = s->mb_x* 8 + (mx >> 1);
+ uvsrc_y = s->mb_y*(8>>field_based) + (my >> 1);
}
-
- src_x = s->mb_x * 8 + mx;
- src_y = s->mb_y * (8 >> field_based) + my;
- src_x = clip(src_x, -8, s->width >> 1);
- if (src_x == (s->width >> 1))
- dxy &= ~1;
- src_y = clip(src_y, -8, height >> 1);
- if (src_y == (height >> 1))
- dxy &= ~2;
- offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
- ptr = ref_picture[1] + offset;
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based,
- src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer + (src_offset >> 1);
+
+ ptr_y = ref_picture[0] + src_y * linesize + src_x;
+ ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
+ ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
+
+ if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 16
+ || (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
+ ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based,
+ src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
+ ptr_y = s->edge_emu_buffer;
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
+ ff_emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9, 9+field_based,
+ uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
+ ff_emulated_edge_mc(uvbuf+16, ptr_cr, s->uvlinesize, 9, 9+field_based,
+ uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
+ ptr_cb= uvbuf;
+ ptr_cr= uvbuf+16;
+ }
}
- pix_op[1][dxy](dest_cb + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
- ptr = ref_picture[2] + offset;
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based,
- src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer + (src_offset >> 1);
+ if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
+ dest_y += s->linesize;
+ dest_cb+= s->uvlinesize;
+ dest_cr+= s->uvlinesize;
+ }
+
+ if(field_select){
+ ptr_y += s->linesize;
+ ptr_cb+= s->uvlinesize;
+ ptr_cr+= s->uvlinesize;
+ }
+
+ pix_op[0][dxy](dest_y, ptr_y, linesize, h);
+
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
+ pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
}
- pix_op[1][dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
}
//FIXME move to dsputil, avg variant, 16x16 version
static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
ptr[i]= ptr[MID];
}else{
ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
- hpel_motion(s, ptr[i], src,
+ hpel_motion(s, ptr[i], src, 0, 0,
src_x, src_y,
s->width, s->height, s->linesize,
s->h_edge_pos, s->v_edge_pos,
static inline void qpel_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int dest_offset,
- uint8_t **ref_picture, int src_offset,
- int field_based, op_pixels_func (*pix_op)[4],
+ int field_based, int bottom_field, int field_select,
+ uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
qpel_mc_func (*qpix_op)[16],
int motion_x, int motion_y, int h)
{
- uint8_t *ptr;
- int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, linesize, uvlinesize;
- int emu=0;
+ uint8_t *ptr_y, *ptr_cb, *ptr_cr;
+ int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
dxy = ((motion_y & 3) << 2) | (motion_x & 3);
- src_x = s->mb_x * 16 + (motion_x >> 2);
+ src_x = s->mb_x * 16 + (motion_x >> 2);
src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
- height = s->height >> field_based;
v_edge_pos = s->v_edge_pos >> field_based;
- src_x = clip(src_x, -16, s->width);
- if (src_x == s->width)
- dxy &= ~3;
- src_y = clip(src_y, -16, height);
- if (src_y == height)
- dxy &= ~12;
linesize = s->linesize << field_based;
uvlinesize = s->uvlinesize << field_based;
- ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
- dest_y += dest_offset;
-//printf("%d %d %d\n", src_x, src_y, dxy);
- if(s->flags&CODEC_FLAG_EMU_EDGE){
- if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 16
- || (unsigned)src_y > v_edge_pos - (motion_y&3) - h ){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr - src_offset, s->linesize, 17, 17+field_based,
- src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
- ptr= s->edge_emu_buffer + src_offset;
- emu=1;
- }
- }
- if(!field_based)
- qpix_op[0][dxy](dest_y, ptr, linesize);
- else{
- //damn interlaced mode
- //FIXME boundary mirroring is not exactly correct here
- qpix_op[1][dxy](dest_y , ptr , linesize);
- qpix_op[1][dxy](dest_y+8, ptr+8, linesize);
- }
-
- if(s->flags&CODEC_FLAG_GRAY) return;
-
if(field_based){
mx= motion_x/2;
my= motion_y>>1;
mx= (mx>>1)|(mx&1);
my= (my>>1)|(my&1);
- dxy= (mx&1) | ((my&1)<<1);
+ uvdxy= (mx&1) | ((my&1)<<1);
mx>>=1;
my>>=1;
- src_x = s->mb_x * 8 + mx;
- src_y = s->mb_y * (8 >> field_based) + my;
- src_x = clip(src_x, -8, s->width >> 1);
- if (src_x == (s->width >> 1))
- dxy &= ~1;
- src_y = clip(src_y, -8, height >> 1);
- if (src_y == (height >> 1))
- dxy &= ~2;
+ uvsrc_x = s->mb_x * 8 + mx;
+ uvsrc_y = s->mb_y * (8 >> field_based) + my;
- offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
- ptr = ref_picture[1] + offset;
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based,
- src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer + (src_offset >> 1);
+ ptr_y = ref_picture[0] + src_y * linesize + src_x;
+ ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
+ ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
+
+ if( (unsigned)src_x > s->h_edge_pos - (motion_x&3) - 16
+ || (unsigned)src_y > v_edge_pos - (motion_y&3) - h ){
+ ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based,
+ src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
+ ptr_y= s->edge_emu_buffer;
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
+ ff_emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize, 9, 9 + field_based,
+ uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
+ ff_emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize, 9, 9 + field_based,
+ uvsrc_x, uvsrc_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
+ ptr_cb= uvbuf;
+ ptr_cr= uvbuf + 16;
+ }
}
- pix_op[1][dxy](dest_cb + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
-
- ptr = ref_picture[2] + offset;
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based,
- src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
- ptr= s->edge_emu_buffer + (src_offset >> 1);
+
+ if(!field_based)
+ qpix_op[0][dxy](dest_y, ptr_y, linesize);
+ else{
+ if(bottom_field){
+ dest_y += s->linesize;
+ dest_cb+= s->uvlinesize;
+ dest_cr+= s->uvlinesize;
+ }
+
+ if(field_select){
+ ptr_y += s->linesize;
+ ptr_cb += s->uvlinesize;
+ ptr_cr += s->uvlinesize;
+ }
+ //damn interlaced mode
+ //FIXME boundary mirroring is not exactly correct here
+ qpix_op[1][dxy](dest_y , ptr_y , linesize);
+ qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
+ }
+ if(!(s->flags&CODEC_FLAG_GRAY)){
+ pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
+ pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
}
- pix_op[1][dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
}
inline int ff_h263_round_chroma(int x){
#ifdef CONFIG_RISKY
if(s->mcsel){
if(s->real_sprite_warping_points==1){
- gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, 0);
+ gmc1_motion(s, dest_y, dest_cb, dest_cr,
+ ref_picture);
}else{
- gmc_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, 0);
+ gmc_motion(s, dest_y, dest_cb, dest_cr,
+ ref_picture);
}
}else if(s->quarter_sample){
- qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, 0,
- 0, pix_op, qpix_op,
+ qpel_motion(s, dest_y, dest_cb, dest_cr,
+ 0, 0, 0,
+ ref_picture, pix_op, qpix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
}else if(s->mspel){
ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
}else
#endif
{
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, 0,
- 0, pix_op,
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 0, 0, 0,
+ ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
}
break;
}else{
for(i=0;i<4;i++) {
hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
- ref_picture[0],
+ ref_picture[0], 0, 0,
mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
s->width, s->height, s->linesize,
s->h_edge_pos, s->v_edge_pos,
case MV_TYPE_FIELD:
if (s->picture_structure == PICT_FRAME) {
if(s->quarter_sample){
- /* top field */
- qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, s->field_select[dir][0] ? s->linesize : 0,
- 1, pix_op, qpix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 8);
- /* bottom field */
- qpel_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
- ref_picture, s->field_select[dir][1] ? s->linesize : 0,
- 1, pix_op, qpix_op,
- s->mv[dir][1][0], s->mv[dir][1][1], 8);
+ for(i=0; i<2; i++){
+ qpel_motion(s, dest_y, dest_cb, dest_cr,
+ 1, i, s->field_select[dir][i],
+ ref_picture, pix_op, qpix_op,
+ s->mv[dir][i][0], s->mv[dir][i][1], 8);
+ }
}else{
/* top field */
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, s->field_select[dir][0] ? s->linesize : 0,
- 1, pix_op,
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 1, 0, s->field_select[dir][0],
+ ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 8);
/* bottom field */
- mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
- ref_picture, s->field_select[dir][1] ? s->linesize : 0,
- 1, pix_op,
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 1, 1, s->field_select[dir][1],
+ ref_picture, pix_op,
s->mv[dir][1][0], s->mv[dir][1][1], 8);
}
} else {
- int offset;
- if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
- offset= s->field_select[dir][0] ? s->linesize : 0;
- }else{
- ref_picture= s->current_picture.data;
- offset= s->field_select[dir][0] ? s->linesize : -s->linesize;
+ if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != B_TYPE && !s->first_field){
+ ref_picture= s->current_picture_ptr->data;
}
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, offset,
- 0, pix_op,
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 0, 0, s->field_select[dir][0],
+ ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
}
break;
- case MV_TYPE_16X8:{
- int offset;
- uint8_t ** ref2picture;
+ case MV_TYPE_16X8:
+ for(i=0; i<2; i++){
+ uint8_t ** ref2picture;
- if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
+ if(s->picture_structure == s->field_select[dir][i] + 1 || s->pict_type == B_TYPE || s->first_field){
ref2picture= ref_picture;
- offset= s->field_select[dir][0] ? s->linesize : 0;
}else{
- ref2picture= s->current_picture.data;
- offset= s->field_select[dir][0] ? s->linesize : -s->linesize;
+ ref2picture= s->current_picture_ptr->data;
}
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref2picture, offset,
- 0, pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 8);
-
-
- if(s->picture_structure == s->field_select[dir][1] + 1 || s->pict_type == B_TYPE || s->first_field){
- ref2picture= ref_picture;
- offset= s->field_select[dir][1] ? s->linesize : 0;
- }else{
- ref2picture= s->current_picture.data;
- offset= s->field_select[dir][1] ? s->linesize : -s->linesize;
- }
- // I know it is ugly but this is the only way to fool emu_edge without rewrite mpeg_motion
- mpeg_motion(s, dest_y+16*s->linesize, dest_cb+8*s->uvlinesize, dest_cr+8*s->uvlinesize,
- 0,
- ref2picture, offset,
- 0, pix_op,
- s->mv[dir][1][0], s->mv[dir][1][1]+16, 8);
- }
-
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 0, 0, s->field_select[dir][i],
+ ref2picture, pix_op,
+ s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8);
+
+ dest_y += 16*s->linesize;
+ dest_cb+= 8*s->uvlinesize;
+ dest_cr+= 8*s->uvlinesize;
+ }
break;
case MV_TYPE_DMV:
- {
- op_pixels_func (*dmv_pix_op)[4];
- int offset;
-
- dmv_pix_op = s->dsp.put_pixels_tab;
-
if(s->picture_structure == PICT_FRAME){
- //put top field from top field
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, 0,
- 1, dmv_pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 8);
- //put bottom field from bottom field
- mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
- ref_picture, s->linesize,
- 1, dmv_pix_op,
- s->mv[dir][0][0], s->mv[dir][0][1], 8);
-
- dmv_pix_op = s->dsp.avg_pixels_tab;
-
- //avg top field from bottom field
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture, s->linesize,
- 1, dmv_pix_op,
- s->mv[dir][2][0], s->mv[dir][2][1], 8);
- //avg bottom field from top field
- mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
- ref_picture, 0,
- 1, dmv_pix_op,
- s->mv[dir][3][0], s->mv[dir][3][1], 8);
-
+ for(i=0; i<2; i++){
+ int j;
+ for(j=0; j<2; j++){
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 1, j, j^i,
+ ref_picture, pix_op,
+ s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], 8);
+ }
+ pix_op = s->dsp.avg_pixels_tab;
+ }
}else{
- offset=(s->picture_structure == PICT_BOTTOM_FIELD)?
- s->linesize : 0;
-
- //put field from the same parity
- //same parity is never in the same frame
- mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
- ref_picture,offset,
- 0,dmv_pix_op,
- s->mv[dir][0][0],s->mv[dir][0][1],16);
-
- // after put we make avg of the same block
- dmv_pix_op=s->dsp.avg_pixels_tab;
-
- //opposite parity is always in the same frame if this is second field
- if(!s->first_field){
- ref_picture = s->current_picture.data;
- //top field is one linesize from frame beginig
- offset=(s->picture_structure == PICT_BOTTOM_FIELD)?
- -s->linesize : s->linesize;
- }else
- offset=(s->picture_structure == PICT_BOTTOM_FIELD)?
- 0 : s->linesize;
-
- //avg field from the opposite parity
- mpeg_motion(s, dest_y, dest_cb, dest_cr,0,
- ref_picture, offset,
- 0,dmv_pix_op,
- s->mv[dir][2][0],s->mv[dir][2][1],16);
+ for(i=0; i<2; i++){
+ mpeg_motion(s, dest_y, dest_cb, dest_cr,
+ 0, 0, s->picture_structure != i+1,
+ ref_picture, pix_op,
+ s->mv[dir][2*i][0],s->mv[dir][2*i][1],16);
+
+ // after put we make avg of the same block
+ pix_op=s->dsp.avg_pixels_tab;
+
+ //opposite parity is always in the same frame if this is second field
+ if(!s->first_field){
+ ref_picture = s->current_picture_ptr->data;
+ }
+ }
}
- }
break;
default: assert(0);
}
mb_x = s->mb_x;
mb_y = s->mb_y;
+ if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
+ /* save DCT coefficients */
+ int i,j;
+ DCTELEM *dct = &s->current_picture.dct_coeff[mb_xy*64*6];
+ for(i=0; i<6; i++)
+ for(j=0; j<64; j++)
+ *dct++ = block[i][s->dsp.idct_permutation[j]];
+ }
+
s->current_picture.qscale_table[mb_xy]= s->qscale;
/* update DC predictors for P macroblocks */
dest_cr= s->dest[2];
}else{
dest_y = s->b_scratchpad;
- dest_cb= s->b_scratchpad+16*s->linesize;
- dest_cr= s->b_scratchpad+16*s->linesize+8;
+ dest_cb= s->b_scratchpad+16*linesize;
+ dest_cr= s->b_scratchpad+16*linesize+8;
}
if (!s->mb_intra) {
/* motion handling */
int dct_offset = s->linesize*8; //default for progressive frames
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int wrap_y, wrap_c;
- int emu=0;
for(i=0; i<6; i++) skip_dct[i]=0;
ptr_cr = s->new_picture.data[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
+ ff_emulated_edge_mc(s->edge_emu_buffer , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
ptr_y= s->edge_emu_buffer;
- emu=1;
+ ff_emulated_edge_mc(s->edge_emu_buffer+18*wrap_y , ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr_cb= s->edge_emu_buffer+18*wrap_y;
+ ff_emulated_edge_mc(s->edge_emu_buffer+18*wrap_y+9, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+ ptr_cr= s->edge_emu_buffer+18*wrap_y+9;
}
if (s->mb_intra) {
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
- if(emu){ //FIXME move out of loop and fix edge_emu_buffer mess
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
- ptr_cb= s->edge_emu_buffer;
- ff_emulated_edge_mc(s->edge_emu_buffer+8, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
- ptr_cr= s->edge_emu_buffer+8;
- }
s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
}
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
- ptr_cb= s->edge_emu_buffer;
- ff_emulated_edge_mc(s->edge_emu_buffer+8, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
- ptr_cr= s->edge_emu_buffer+8;
- }
s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
}
s->parse_context.overread_index= 0;
s->parse_context.index= 0;
s->parse_context.last_index= 0;
+ s->bitstream_buffer_size=0;
}
#ifdef CONFIG_ENCODERS
void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length)
{
- const uint16_t *srcw= src;
+ const uint16_t *srcw= (uint16_t*)src;
int words= length>>4;
int bits= length&15;
int i;
static void encode_picture(MpegEncContext *s, int picture_number)
{
- int mb_x, mb_y;
int i, j;
int bits;
/* we need to initialize some time vars before we can encode b-frames */
// RAL: Condition added for MPEG1VIDEO
if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
- ff_set_mpeg4_time(s, s->picture_number);
+ ff_set_mpeg4_time(s, s->picture_number); //FIXME rename and use has_b_frames or similar
#endif
s->scene_change_score=0;
s->mb_intra=0; //for the rate distoration & bit compare functions
for(i=1; i<s->avctx->thread_count; i++){
- update_duplicate_context(s->thread_context[i], s);
+ ff_update_duplicate_context(s->thread_context[i], s);
}
/* Estimate motion for every MB */
int prev_run=0;
int prev_level=0;
int qmul, qadd, start_i, last_non_zero, i, dc;
- const int esc_length= s->ac_esc_length;
uint8_t * length;
uint8_t * last_length;
int lambda;
#endif
for(;;){
int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
- int nochange_score= best_score;
int best_coeff=0;
int best_change=0;
int run2, best_unquant_change, analyze_gradient;
projects / ffmpeg / blobdiff