virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

support reusing mb types and field select values of the source file, but use motion vectors just as additional predictors

Browse Source 
minor cleanup
segfault fix

Originally committed as revision 3060 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-04-25 02:09:47 +00:00
parent 7e56cd927b
commit f20f8a8b0b
4 changed files with 98 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
ffmpeg.c
View File

@ -161,6 +161,7 @@ static int sc_threshold = 0;
static int debug = 0;
static int debug_mv = 0;
static int me_threshold = 0;
static int mb_threshold = 0;
extern int loop_input; /* currently a hack */
static int gop_size = 12;
@ -1866,6 +1867,10 @@ static void opt_me_threshold(const char *arg)
me_threshold = atoi(arg);
}
static void opt_mb_threshold(const char *arg)
{
mb_threshold = atoi(arg);
}
static void opt_error_resilience(const char *arg)
{
@ -2873,6 +2878,7 @@ static void opt_output_file(const char *filename)
video_enc->dct_algo = dct_algo;
video_enc->idct_algo = idct_algo;
video_enc->me_threshold= me_threshold;
video_enc->mb_threshold= mb_threshold;
video_enc->strict_std_compliance = strict;
video_enc->error_rate = error_rate;
video_enc->noise_reduction= noise_reduction;
@ -3494,6 +3500,7 @@ const OptionDef options[] = {
{ "dct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dct_algo}, "set dct algo", "algo" },
{ "idct_algo", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_idct_algo}, "set idct algo", "algo" },
{ "me_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_me_threshold}, "motion estimaton threshold", "" },
{ "mb_threshold", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_mb_threshold}, "macroblock threshold", "" },
{ "er", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_resilience}, "set error resilience", "n" },
{ "ec", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_error_concealment}, "set error concealment", "bit_mask" },
{ "bf", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_b_frames}, "use 'frames' B frames", "frames" },

14
libavcodec/avcodec.h
View File

@ -17,7 +17,7 @@ extern "C" {
#define FFMPEG_VERSION_INT 0x000408
#define FFMPEG_VERSION "0.4.8"
#define LIBAVCODEC_BUILD 4709
#define LIBAVCODEC_BUILD 4710
#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
#define LIBAVCODEC_VERSION FFMPEG_VERSION
@ -1570,12 +1570,20 @@ typedef struct AVCodecContext {
void *thread_opaque;
/**
* Motion estimation threshold.
* Motion estimation threshold. under which no motion estimation is
* performed, but instead the user specified motion vectors are used
*
* - encoding: set by user
* - decoding: set by user
* - decoding: unused
*/
int me_threshold;
/**
* Macroblock threshold. under which the user specified macroblock types will be used
* - encoding: set by user
* - decoding: unused
*/
int mb_threshold;
} AVCodecContext;

111
libavcodec/motion_est.c
View File

@ -859,7 +859,7 @@ static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
}
static int interlaced_search(MpegEncContext *s, int ref_index,
int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my)
int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
{
MotionEstContext * const c= &s->me;
const int size=0;
@ -889,6 +889,11 @@ static int interlaced_search(MpegEncContext *s, int ref_index,
int dmin, mx_i, my_i;
int16_t (*mv_table)[2]= mv_tables[block][field_select];
if(user_field_select){
if(field_select_tables[block][xy] != field_select)
continue;
}
P_LEFT[0] = mv_table[xy - 1][0];
P_LEFT[1] = mv_table[xy - 1][1];
if(P_LEFT[0] > (c->xmax<<1)) P_LEFT[0] = (c->xmax<<1);
@ -996,7 +1001,6 @@ static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
c->stride<<=1;
c->uvstride<<=1;
init_interlaced_ref(s, 2);
assert(s->flags & CODEC_FLAG_INTERLACED_ME);
@ -1005,6 +1009,8 @@ static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int
int field_select1= p->ref_index[0][xy2];
assert(field_select0==0 ||field_select0==1);
assert(field_select1==0 ||field_select1==1);
init_interlaced_ref(s, 0);
if(p_type){
s->p_field_select_table[0][mb_xy]= field_select0;
s->p_field_select_table[1][mb_xy]= field_select1;
@ -1031,6 +1037,8 @@ static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int
int field_select1= p->ref_index[1][xy2];
assert(field_select0==0 ||field_select0==1);
assert(field_select1==0 ||field_select1==1);
init_interlaced_ref(s, 2);
s->b_field_select_table[1][0][mb_xy]= field_select0;
s->b_field_select_table[1][1][mb_xy]= field_select1;
*(uint32_t*)s->b_field_mv_table[1][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[1][xy ];
@ -1097,7 +1105,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
{
MotionEstContext * const c= &s->me;
uint8_t *pix, *ppix;
int sum, varc, vard, mx, my, dmin, xx, yy;
int sum, varc, vard, mx, my, dmin;
int P[10][2];
const int shift= 1+s->quarter_sample;
int mb_type=0;
@ -1117,18 +1125,20 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
get_limits(s, 16*mb_x, 16*mb_y);
s->me.skip=0;
/* intra / predictive decision */
pix = c->src[0][0];
sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
pic->mb_var [s->mb_stride * mb_y + mb_x] = varc;
s->mb_var_sum_temp += varc;
if(s->avctx->me_threshold){
vard= (check_input_motion(s, mb_x, mb_y, 1)+128)>>8;
if(vard<s->avctx->me_threshold){
pix = c->src[0][0];
sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
pic->mb_var [s->mb_stride * mb_y + mb_x] = varc;
pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = vard;
pic->mb_mean [s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
s->mb_var_sum_temp += varc;
s->mc_mb_var_sum_temp += vard;
if (vard <= 64 || vard < varc) { //FIXME
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
@ -1137,6 +1147,8 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
}
return;
}
if(vard<s->avctx->mb_threshold)
mb_type= s->mb_type[mb_x + mb_y*s->mb_stride];
}
switch(s->me_method) {
@ -1205,33 +1217,41 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
break;
}
/* intra / predictive decision */
xx = mb_x * 16;
yy = mb_y * 16;
pix = c->src[0][0];
/* At this point (mx,my) are full-pell and the relative displacement */
ppix = c->ref[0][0] + (my * s->linesize) + mx;
sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
vard = (s->dsp.sse[0](NULL, pix, ppix, s->linesize, 16)+128)>>8;
//printf("%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);
pic->mb_var [s->mb_stride * mb_y + mb_x] = varc;
pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = vard;
pic->mb_mean [s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
// pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
s->mb_var_sum_temp += varc;
s->mc_mb_var_sum_temp += vard;
//printf("E%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);
#if 0
printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",
varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);
#endif
if(s->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
if(mb_type){
if (vard <= 64 || vard < varc)
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
else
s->scene_change_score+= s->qscale;
if(mb_type == CANDIDATE_MB_TYPE_INTER){
s->me.sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
set_p_mv_tables(s, mx, my, 1);
}else{
mx <<=shift;
my <<=shift;
}
if(mb_type == CANDIDATE_MB_TYPE_INTER4V){
h263_mv4_search(s, mx, my, shift);
set_p_mv_tables(s, mx, my, 0);
}
if(mb_type == CANDIDATE_MB_TYPE_INTER_I){
interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 1);
}
}else if(s->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
if (vard <= 64 || vard < varc)
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
else
@ -1259,7 +1279,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
set_p_mv_tables(s, mx, my, 1);
if((s->flags&CODEC_FLAG_INTERLACED_ME)
&& !s->me.skip){ //FIXME varc/d checks
if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my) < INT_MAX)
if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
mb_type |= CANDIDATE_MB_TYPE_INTER_I;
}
}else{
@ -1280,7 +1300,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
}
if((s->flags&CODEC_FLAG_INTERLACED_ME)
&& !s->me.skip){ //FIXME varc/d checks
int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my);
int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
if(dmin_i < dmin){
mb_type = CANDIDATE_MB_TYPE_INTER_I;
dmin= dmin_i;
@ -1690,7 +1710,9 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
const int penalty_factor= s->me.mb_penalty_factor;
int fmin, bmin, dmin, fbmin, bimin, fimin;
int type=0;
const int xy = mb_y*s->mb_stride + mb_x;
init_ref(s, s->new_picture.data, s->last_picture.data, s->next_picture.data, 16*mb_x, 16*mb_y, 2);
s->me.skip=0;
if(s->avctx->me_threshold){
@ -1713,6 +1735,35 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
}*/
return;
}
if(vard<s->avctx->mb_threshold){
type= s->mb_type[mb_y*s->mb_stride + mb_x];
if(type == CANDIDATE_MB_TYPE_DIRECT){
direct_search(s, mb_x, mb_y);
}
if(type == CANDIDATE_MB_TYPE_FORWARD || type == CANDIDATE_MB_TYPE_BIDIR){
s->me.skip=0;
ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code);
}
if(type == CANDIDATE_MB_TYPE_BACKWARD || type == CANDIDATE_MB_TYPE_BIDIR){
s->me.skip=0;
ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code);
}
if(type == CANDIDATE_MB_TYPE_FORWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
s->me.skip=0;
s->me.current_mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;
interlaced_search(s, 0,
s->b_field_mv_table[0], s->b_field_select_table[0],
s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 1);
}
if(type == CANDIDATE_MB_TYPE_BACKWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
s->me.skip=0;
s->me.current_mv_penalty= s->me.mv_penalty[s->b_code] + MAX_MV;
interlaced_search(s, 2,
s->b_field_mv_table[1], s->b_field_select_table[1],
s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 1);
}
return;
}
}
if (s->codec_id == CODEC_ID_MPEG4)
@ -1732,18 +1783,16 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
//printf("%d %d %d %d\n", dmin, fmin, bmin, fbmin);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
const int xy = mb_y*s->mb_stride + mb_x;
//FIXME mb type penalty
s->me.skip=0;
s->me.current_mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;
fimin= interlaced_search(s, 0,
s->b_field_mv_table[0], s->b_field_select_table[0],
s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
s->me.current_mv_penalty= s->me.mv_penalty[s->b_code] + MAX_MV;
bimin= interlaced_search(s, 2,
s->b_field_mv_table[1], s->b_field_select_table[1],
s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1]);
s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
}else
fimin= bimin= INT_MAX;

1
libavcodec/mpegvideo.h
View File

@ -229,7 +229,6 @@ typedef struct MotionEstContext{
/* cmp, chroma_cmp;*/
op_pixels_func (*hpel_put)[4];
op_pixels_func (*hpel_avg)[4];
op_pixels_func (*chroma_hpel_put)[4];
qpel_mc_func (*qpel_put)[16];
qpel_mc_func (*qpel_avg)[16];
uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV