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multithreaded/SMP motion estimation

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multithreaded/SMP encoding for MPEG1/MPEG2/MPEG4/H263
all pthread specific code is in pthread.c
to try it, run configure --enable-pthreads and ffmpeg ... -threads <num>
the internal thread API is a simple AVCodecContext.execute() callback which executes a given function pointer with different arguments and returns after finishing all, that way no mutexes or other thread-mess is needed outside pthread.c

Originally committed as revision 2772 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-02-13 17:54:10 +00:00
parent 7984082a08
commit 9c3d33d67f
17 changed files with 902 additions and 353 deletions
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10
configure vendored
View File

@ -29,6 +29,7 @@ echo " --enable-amr_nb enable amr_nb float audio codec"
echo " --enable-amr_nb-fixed use fixed point for amr-nb codec"
echo " --enable-amr_wb enable amr_wb float audio codec"
echo " --enable-sunmlib use Sun medialib [default=no]"
echo " --enable-pthreads use pthreads [default=no]"
echo ""
echo "Advanced options (experts only):"
echo " --source-path=PATH path of source code [$source_path]"
@ -171,6 +172,7 @@ amr_nb="no"
amr_wb="no"
amr_nb_fixed="no"
sunmlib="no"
pthreads="no"
# OS specific
targetos=`uname -s`
@ -415,6 +417,8 @@ for opt do
;;
--enable-sunmlib) sunmlib="yes"
;;
--enable-pthreads) pthreads="yes"
;;
esac
done
@ -919,6 +923,7 @@ echo "Imlib2 support $imlib2"
echo "freetype support $freetype2"
fi
echo "Sun medialib support" $sunmlib
echo "pthreads support" $pthreads
echo "AMR-NB float support" $amr_nb
echo "AMR-NB fixed support" $amr_nb_fixed
echo "AMR-WB float support" $amr_wb
@ -1033,6 +1038,11 @@ if test "$sunmlib" = "yes" ; then
echo "#define HAVE_MLIB 1" >> $TMPH
extralibs="$extralibs -lmlib"
fi
if test "$pthreads" = "yes" ; then
echo "HAVE_PTHREADS=yes" >> config.mak
echo "#define HAVE_PTHREADS 1" >> $TMPH
extralibs="$extralibs -lpthread"
fi
if test "$sdl" = "yes" ; then
echo "CONFIG_SDL=yes" >> config.mak
echo "SDL_LIBS=`sdl-config --libs`" >> config.mak

75
ffmpeg.c
View File

@ -117,6 +117,13 @@ static int ildct_cmp = FF_CMP_VSAD;
static int mb_cmp = FF_CMP_SAD;
static int sub_cmp = FF_CMP_SAD;
static int cmp = FF_CMP_SAD;
static int pre_cmp = FF_CMP_SAD;
static int pre_me = 0;
static float lumi_mask = 0;
static float dark_mask = 0;
static float scplx_mask = 0;
static float tcplx_mask = 0;
static float p_mask = 0;
static int use_4mv = 0;
static int use_obmc = 0;
static int use_aic = 0;
@ -185,6 +192,7 @@ static char *audio_device = NULL;
static int using_stdin = 0;
static int using_vhook = 0;
static int verbose = 1;
static int thread_count= 1;
#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
@ -1855,6 +1863,41 @@ static void opt_cmp(const char *arg)
cmp = atoi(arg);
}
static void opt_pre_cmp(const char *arg)
{
pre_cmp = atoi(arg);
}
static void opt_pre_me(const char *arg)
{
pre_me = atoi(arg);
}
static void opt_lumi_mask(const char *arg)
{
lumi_mask = atof(arg);
}
static void opt_dark_mask(const char *arg)
{
dark_mask = atof(arg);
}
static void opt_scplx_mask(const char *arg)
{
scplx_mask = atof(arg);
}
static void opt_tcplx_mask(const char *arg)
{
tcplx_mask = atof(arg);
}
static void opt_p_mask(const char *arg)
{
p_mask = atof(arg);
}
static void opt_qscale(const char *arg)
{
video_qscale = atof(arg);
@ -1990,6 +2033,11 @@ static void opt_sc_threshold(const char *arg)
sc_threshold= atoi(arg);
}
static void opt_thread_count(const char *arg)
{
thread_count= atoi(arg);
}
static void opt_audio_bitrate(const char *arg)
{
audio_bit_rate = atoi(arg) * 1000;
@ -2348,6 +2396,10 @@ static void opt_output_file(const char *filename)
exit(1);
}
avcodec_get_context_defaults(&st->codec);
#ifdef HAVE_PTHREADS
if(thread_count>1)
avcodec_pthread_init(&st->codec, thread_count);
#endif
video_enc = &st->codec;
@ -2398,6 +2450,13 @@ static void opt_output_file(const char *filename)
video_enc->ildct_cmp = ildct_cmp;
video_enc->me_sub_cmp = sub_cmp;
video_enc->me_cmp = cmp;
video_enc->me_pre_cmp = pre_cmp;
video_enc->pre_me = pre_me;
video_enc->lumi_masking = lumi_mask;
video_enc->dark_masking = dark_mask;
video_enc->spatial_cplx_masking = scplx_mask;
video_enc->temporal_cplx_masking = tcplx_mask;
video_enc->p_masking = p_mask;
video_enc->quantizer_noise_shaping= qns;
if (use_umv) {
@ -2451,7 +2510,8 @@ static void opt_output_file(const char *filename)
video_enc->qcompress = video_qcomp;
video_enc->rc_eq = video_rc_eq;
video_enc->debug = debug;
video_enc->debug_mv = debug_mv;
video_enc->debug_mv = debug_mv;
video_enc->thread_count = thread_count;
p= video_rc_override_string;
for(i=0; p; i++){
int start, end, q;
@ -2527,6 +2587,10 @@ static void opt_output_file(const char *filename)
exit(1);
}
avcodec_get_context_defaults(&st->codec);
#ifdef HAVE_PTHREADS
if(thread_count>1)
avcodec_pthread_init(&st->codec, thread_count);
#endif
audio_enc = &st->codec;
audio_enc->codec_type = CODEC_TYPE_AUDIO;
@ -2544,6 +2608,7 @@ static void opt_output_file(const char *filename)
audio_enc->bit_rate = audio_bit_rate;
audio_enc->sample_rate = audio_sample_rate;
audio_enc->strict_std_compliance = strict;
audio_enc->thread_count = thread_count;
/* For audio codecs other than AC3 we limit */
/* the number of coded channels to stereo */
if (audio_channels > 2 && codec_id != CODEC_ID_AC3) {
@ -2999,6 +3064,7 @@ const OptionDef options[] = {
{ "loop", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
{ "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
{ "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\" or \"dvd\")", "type" },
{ "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
/* video options */
{ "b", HAS_ARG | OPT_VIDEO, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" },
@ -3049,6 +3115,13 @@ const OptionDef options[] = {
{ "ildctcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_ildct_cmp}, "ildct compare function", "cmp function" },
{ "subcmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_sub_cmp}, "subpel compare function", "cmp function" },
{ "cmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_cmp}, "fullpel compare function", "cmp function" },
{ "precmp", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_cmp}, "pre motion estimation compare function", "cmp function" },
{ "preme", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_pre_me}, "pre motion estimation", "" },
{ "lumi_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_lumi_mask}, "luminance masking", "" },
{ "dark_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_dark_mask}, "darkness masking", "" },
{ "scplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_scplx_mask}, "spatial complexity masking", "" },
{ "tcplx_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_tcplx_mask}, "teporal complexity masking", "" },
{ "p_mask", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_p_mask}, "inter masking", "" },
{ "4mv", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_4mv}, "use four motion vector by macroblock (MPEG4)" },
{ "obmc", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_obmc}, "use overlapped block motion compensation (h263+)" },
{ "part", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&use_part}, "use data partitioning (MPEG4)" },

4
libavcodec/Makefile
View File

@ -33,6 +33,10 @@ CLEANAMR=cleanamrfloat
endif
endif
ifeq ($(HAVE_PTHREADS),yes)
OBJS+= pthread.o
endif
ifeq ($(AMR_WB),yes)
OBJS+= amr.o amrwb_float/dec_acelp.o amrwb_float/dec_dtx.o amrwb_float/dec_gain.o \
amrwb_float/dec_if.o amrwb_float/dec_lpc.o amrwb_float/dec_main.o \

33
libavcodec/avcodec.h
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@ -17,7 +17,7 @@ extern "C" {
#define FFMPEG_VERSION_INT 0x000408
#define FFMPEG_VERSION "0.4.8"
#define LIBAVCODEC_BUILD 4701
#define LIBAVCODEC_BUILD 4702
#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
#define LIBAVCODEC_VERSION FFMPEG_VERSION
@ -1508,6 +1508,32 @@ typedef struct AVCodecContext {
* - decoding: unused
*/
int quantizer_noise_shaping;
/**
* Thread count.
* is used to decide how many independant tasks should be passed to execute()
* - encoding: set by user
* - decoding: set by user
*/
int thread_count;
/**
* the codec may call this to execute several independant things. it will return only after
* finishing all tasks, the user may replace this with some multithreaded implementation, the
* default implementation will execute the parts serially
* @param count the number of functions this will be identical to thread_count if possible
* - encoding: set by lavc, user can override
* - decoding: set by lavc, user can override
*/
int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
/**
* Thread opaque.
* can be used by execute() to store some per AVCodecContext stuff.
* - encoding: set by execute()
* - decoding: set by execute()
*/
void *thread_opaque;
} AVCodecContext;
@ -1846,6 +1872,11 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_default_free_buffers(AVCodecContext *s);
int avcodec_pthread_init(AVCodecContext *s, int thread_count);
void avcodec_pthread_free(AVCodecContext *s);
int avcodec_pthread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
//FIXME func typedef
/**
* opens / inits the AVCodecContext.
* not thread save!

22
libavcodec/common.h
View File

@ -475,6 +475,28 @@ static inline uint8_t* pbBufPtr(PutBitContext *s)
#endif
}
/**
*
* PutBitContext must be flushed & aligned to a byte boundary before calling this.
*/
static inline void skip_put_bytes(PutBitContext *s, int n){
assert((put_bits_count(s)&7)==0);
#ifdef ALT_BITSTREAM_WRITER
FIXME may need some cleaning of the buffer
s->index += n<<3;
#else
assert(s->bit_left==32);
s->buf_ptr += n;
#endif
}
/**
* Changes the end of the buffer.
*/
static inline void set_put_bits_buffer_size(PutBitContext *s, int size){
s->buf_end= s->buf + size;
}
/* Bitstream reader API docs:
name
abritary name which is used as prefix for the internal variables

29
libavcodec/h263.c
View File

@ -1961,7 +1961,9 @@ void h263_encode_init(MpegEncContext *s)
s->luma_dc_vlc_length= uni_DCtab_lum_len;
s->chroma_dc_vlc_length= uni_DCtab_chrom_len;
s->ac_esc_length= 7+2+1+6+1+12+1;
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table;
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
if(s->flags & CODEC_FLAG_GLOBAL_HEADER){
s->avctx->extradata= av_malloc(1024);
@ -2290,12 +2292,11 @@ static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_n
put_bits(&s->pb, 1, s->progressive_sequence ? 0 : 1);
put_bits(&s->pb, 1, 1); /* obmc disable */
if (vo_ver_id == 1) {
put_bits(&s->pb, 1, s->vol_sprite_usage=0); /* sprite enable */
put_bits(&s->pb, 1, s->vol_sprite_usage); /* sprite enable */
}else{
put_bits(&s->pb, 2, s->vol_sprite_usage=0); /* sprite enable */
put_bits(&s->pb, 2, s->vol_sprite_usage); /* sprite enable */
}
s->quant_precision=5;
put_bits(&s->pb, 1, 0); /* not 8 bit == false */
put_bits(&s->pb, 1, s->mpeg_quant); /* quant type= (0=h263 style)*/
@ -2384,9 +2385,6 @@ void mpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
if (s->pict_type == B_TYPE)
put_bits(&s->pb, 3, s->b_code); /* fcode_back */
// printf("****frame %d\n", picture_number);
s->y_dc_scale_table= ff_mpeg4_y_dc_scale_table; //FIXME add short header support
s->c_dc_scale_table= ff_mpeg4_c_dc_scale_table;
}
#endif //CONFIG_ENCODERS
@ -2965,8 +2963,16 @@ static inline void memsetw(short *tab, int val, int n)
void ff_mpeg4_init_partitions(MpegEncContext *s)
{
init_put_bits(&s->tex_pb, s->tex_pb_buffer, PB_BUFFER_SIZE);
init_put_bits(&s->pb2 , s->pb2_buffer , PB_BUFFER_SIZE);
uint8_t *start= pbBufPtr(&s->pb);
uint8_t *end= s->pb.buf_end;
int size= end - start;
int pb_size = size/3;
int pb2_size= size/3;
int tex_size= size - pb_size - pb2_size;
set_put_bits_buffer_size(&s->pb, pb_size);
init_put_bits(&s->tex_pb, start + pb_size , tex_size);
init_put_bits(&s->pb2 , start + pb_size + tex_size, pb2_size);
}
void ff_mpeg4_merge_partitions(MpegEncContext *s)
@ -2989,8 +2995,9 @@ void ff_mpeg4_merge_partitions(MpegEncContext *s)
flush_put_bits(&s->pb2);
flush_put_bits(&s->tex_pb);
ff_copy_bits(&s->pb, s->pb2_buffer , pb2_len);
ff_copy_bits(&s->pb, s->tex_pb_buffer, tex_pb_len);
set_put_bits_buffer_size(&s->pb, s->pb2.buf_end - s->pb.buf);
ff_copy_bits(&s->pb, s->pb2.buf , pb2_len);
ff_copy_bits(&s->pb, s->tex_pb.buf, tex_pb_len);
s->last_bits= put_bits_count(&s->pb);
}

11
libavcodec/mjpeg.c
View File

@ -531,11 +531,16 @@ static void escape_FF(MpegEncContext *s, int start)
}
}
void ff_mjpeg_stuffing(PutBitContext * pbc)
{
int length;
length= (-put_bits_count(pbc))&7;
if(length) put_bits(pbc, length, (1<<length)-1);
}
void mjpeg_picture_trailer(MpegEncContext *s)
{
int pad= (-put_bits_count(&s->pb))&7;
put_bits(&s->pb, pad,0xFF>>(8-pad));
ff_mjpeg_stuffing(&s->pb);
flush_put_bits(&s->pb);
assert((s->header_bits&7)==0);

21
libavcodec/motion_est.c
View File

@ -805,7 +805,7 @@ static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
if(P_LEFT[0] > (s->me.xmax<<shift)) P_LEFT[0] = (s->me.xmax<<shift);
/* special case for first line */
if (s->mb_y == 0 && block<2) {
if (s->first_slice_line && block<2) {
pred_x4= P_LEFT[0];
pred_y4= P_LEFT[1];
} else {
@ -845,13 +845,12 @@ static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
int dxy;
const int offset= ((block&1) + (block>>1)*stride)*8;
uint8_t *dest_y = s->me.scratchpad + offset;
if(s->quarter_sample){
uint8_t *ref= ref_data[0] + (mx4>>2) + (my4>>2)*stride;
dxy = ((my4 & 3) << 2) | (mx4 & 3);
if(s->no_rounding)
s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y , ref , s->linesize);
s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y , ref , stride);
else
s->dsp.put_qpel_pixels_tab [1][dxy](dest_y , ref , stride);
}else{
@ -966,7 +965,7 @@ static int interlaced_search(MpegEncContext *s, uint8_t *frame_src_data[3], uint
pred_x= P_LEFT[0];
pred_y= P_LEFT[1];
if(s->mb_y){
if(!s->first_slice_line){
P_TOP[0] = mv_table[xy - mot_stride][0];
P_TOP[1] = mv_table[xy - mot_stride][1];
P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
@ -1115,7 +1114,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
if(P_LEFT[0] > (s->me.xmax<<shift)) P_LEFT[0] = (s->me.xmax<<shift);
if(mb_y) {
if(!s->first_slice_line) {
P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
@ -1164,8 +1163,8 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
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;
pic->mb_var_sum += varc;
pic->mc_mb_var_sum += vard;
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
@ -1326,7 +1325,7 @@ int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
if(P_LEFT[0] < (s->me.xmin<<shift)) P_LEFT[0] = (s->me.xmin<<shift);
/* special case for first line */
if (mb_y == s->mb_height-1) {
if (s->first_slice_line) {
pred_x= P_LEFT[0];
pred_y= P_LEFT[1];
P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
@ -1409,7 +1408,7 @@ static int ff_estimate_motion_b(MpegEncContext * s,
if(P_LEFT[0] > (s->me.xmax<<shift)) P_LEFT[0] = (s->me.xmax<<shift);
/* special case for first line */
if (mb_y) {
if (!s->first_slice_line) {
P_TOP[0] = mv_table[mot_xy - mot_stride ][0];
P_TOP[1] = mv_table[mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1 ][0];
@ -1610,7 +1609,7 @@ static inline int direct_search(MpegEncContext * s, uint8_t *src_data[3], uint8_
P_LEFT[1] = clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
/* special case for first line */
if (mb_y) {
if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as its cliped
P_TOP[0] = clip(mv_table[mot_xy - mot_stride ][0], xmin<<shift, xmax<<shift);
P_TOP[1] = clip(mv_table[mot_xy - mot_stride ][1], ymin<<shift, ymax<<shift);
P_TOPRIGHT[0] = clip(mv_table[mot_xy - mot_stride + 1 ][0], xmin<<shift, xmax<<shift);
@ -1727,7 +1726,7 @@ void ff_estimate_b_frame_motion(MpegEncContext * s,
}
score= ((unsigned)(score*score + 128*256))>>16;
s->current_picture.mc_mb_var_sum += score;
s->mc_mb_var_sum_temp += score;
s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
}

34
libavcodec/motion_est_template.c
View File

@ -557,9 +557,11 @@ static int RENAME(qpel_get_mb_score)(MpegEncContext * s, int mx, int my, int pre
#define CHECK_CLIPED_MV(ax,ay)\
{\
const int x= FFMAX(xmin, FFMIN(ax, xmax));\
const int y= FFMAX(ymin, FFMIN(ay, ymax));\
CHECK_MV(x, y)\
const int x= ax;\
const int y= ay;\
const int x2= FFMAX(xmin, FFMIN(x, xmax));\
const int y2= FFMAX(ymin, FFMIN(y, ymax));\
CHECK_MV(x2, y2)\
}
#define CHECK_MV_DIR(x,y,new_dir)\
@ -912,7 +914,7 @@ static int RENAME(epzs_motion_search)(MpegEncContext * s,
score_map[0]= dmin;
/* first line */
if (s->mb_y == 0) {
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
@ -938,13 +940,15 @@ static int RENAME(epzs_motion_search)(MpegEncContext * s,
if(s->me.pre_pass){
CHECK_CLIPED_MV((last_mv[ref_mv_xy-1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy-1][1]*ref_mv_scale + (1<<15))>>16)
CHECK_CLIPED_MV((last_mv[ref_mv_xy-ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy-ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
if(!s->first_slice_line)
CHECK_CLIPED_MV((last_mv[ref_mv_xy-ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy-ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}else{
CHECK_CLIPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
if(s->end_mb_y == s->mb_height || s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
}
@ -1024,7 +1028,7 @@ static int RENAME(epzs_motion_search4)(MpegEncContext * s,
dmin = 1000000;
//printf("%d %d %d %d //",xmin, ymin, xmax, ymax);
/* first line */
if (s->mb_y == 0/* && block<2*/) {
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
@ -1044,8 +1048,9 @@ static int RENAME(epzs_motion_search4)(MpegEncContext * s,
if(dmin>64*4){
CHECK_CLIPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
if(s->end_mb_y == s->mb_height || s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
if(s->me.dia_size==-1)
@ -1102,7 +1107,7 @@ static int RENAME(epzs_motion_search2)(MpegEncContext * s,
dmin = 1000000;
//printf("%d %d %d %d //",xmin, ymin, xmax, ymax);
/* first line */
if (s->mb_y == 0) {
if (s->first_slice_line) {
CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
CHECK_CLIPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
@ -1122,8 +1127,9 @@ static int RENAME(epzs_motion_search2)(MpegEncContext * s,
if(dmin>64*4){
CHECK_CLIPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
if(s->end_mb_y == s->mb_height || s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
CHECK_CLIPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
(last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
}
if(s->me.dia_size==-1)

4
libavcodec/mpeg12.c
View File

@ -419,7 +419,9 @@ void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
put_bits(&s->pb, 8, 255);
}
put_bits(&s->pb, 2, s->intra_dc_precision);
put_bits(&s->pb, 2, s->picture_structure= PICT_FRAME);
assert(s->picture_structure == PICT_FRAME);
put_bits(&s->pb, 2, s->picture_structure);
if (s->progressive_sequence) {
put_bits(&s->pb, 1, 0); /* no repeat */
} else {

802
libavcodec/mpegvideo.c
View File

@ -401,6 +401,98 @@ static void free_picture(MpegEncContext *s, Picture *pic){
}
}
static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base){
int i;
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))
s->rd_scratchpad= s->me.scratchpad;
s->b_scratchpad= s->me.scratchpad;
s->obmc_scratchpad= s->me.scratchpad + 16;
if (s->encoding) {
CHECKED_ALLOCZ(s->me.map , ME_MAP_SIZE*sizeof(uint32_t))
CHECKED_ALLOCZ(s->me.score_map, ME_MAP_SIZE*sizeof(uint32_t))
if(s->avctx->noise_reduction){
CHECKED_ALLOCZ(s->dct_error_sum, 2 * 64 * sizeof(int))
}
}
CHECKED_ALLOCZ(s->blocks, 64*6*2 * sizeof(DCTELEM))
s->block= s->blocks[0];
for(i=0;i<12;i++){
s->pblocks[i] = (short *)(&s->block[i]);
}
return 0;
fail:
return -1; //free() through MPV_common_end()
}
static void free_duplicate_context(MpegEncContext *s){
if(s==NULL) return;
av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;
av_freep(&s->me.scratchpad);
s->rd_scratchpad=
s->b_scratchpad=
s->obmc_scratchpad= NULL;
av_freep(&s->dct_error_sum);
av_freep(&s->me.map);
av_freep(&s->me.score_map);
av_freep(&s->blocks);
s->block= NULL;
}
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src){
#define COPY(a) bak->a= src->a
COPY(allocated_edge_emu_buffer);
COPY(edge_emu_buffer);
COPY(me.scratchpad);
COPY(rd_scratchpad);
COPY(b_scratchpad);
COPY(obmc_scratchpad);
COPY(me.map);
COPY(me.score_map);
COPY(blocks);
COPY(block);
COPY(start_mb_y);
COPY(end_mb_y);
COPY(me.map_generation);
COPY(pb);
COPY(dct_error_sum);
#undef COPY
}
static void update_duplicate_context(MpegEncContext *dst, MpegEncContext *src){
MpegEncContext bak;
//FIXME copy only needed parts
//START_TIMER
backup_duplicate_context(&bak, dst);
memcpy(dst, src, sizeof(MpegEncContext));
backup_duplicate_context(dst, &bak);
//STOP_TIMER("update_duplicate_context") //about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
}
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
#define COPY(a) dst->a= src->a
COPY(pict_type);
COPY(current_picture);
COPY(f_code);
COPY(b_code);
COPY(qscale);
COPY(lambda);
COPY(lambda2);
COPY(picture_in_gop_number);
COPY(gop_picture_number);
COPY(frame_pred_frame_dct); //FIXME dont set in encode_header
COPY(progressive_frame); //FIXME dont set in encode_header
COPY(partitioned_frame); //FIXME dont set in encode_header
#undef COPY
}
/* init common structure for both encoder and decoder */
int MPV_common_init(MpegEncContext *s)
{
@ -456,9 +548,6 @@ int MPV_common_init(MpegEncContext *s)
+ (toupper((s->avctx->stream_codec_tag>>16)&0xFF)<<16)
+ (toupper((s->avctx->stream_codec_tag>>24)&0xFF)<<24);
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;
s->avctx->coded_frame= (AVFrame*)&s->current_picture;
CHECKED_ALLOCZ(s->mb_index2xy, (s->mb_num+1)*sizeof(int)) //error ressilience code looks cleaner with this
@ -484,17 +573,6 @@ int MPV_common_init(MpegEncContext *s)
s->b_bidir_back_mv_table= s->b_bidir_back_mv_table_base + s->mb_stride + 1;
s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
//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*3*sizeof(uint8_t))
CHECKED_ALLOCZ(s->me.map , ME_MAP_SIZE*sizeof(uint32_t))
CHECKED_ALLOCZ(s->me.score_map, ME_MAP_SIZE*sizeof(uint32_t))
if(s->codec_id==CODEC_ID_MPEG4){
CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
CHECKED_ALLOCZ( s->pb2_buffer, PB_BUFFER_SIZE);
}
if(s->msmpeg4_version){
CHECKED_ALLOCZ(s->ac_stats, 2*2*(MAX_LEVEL+1)*(MAX_RUN+1)*2*sizeof(int));
}
@ -513,12 +591,9 @@ int MPV_common_init(MpegEncContext *s)
CHECKED_ALLOCZ(s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture*))
if(s->avctx->noise_reduction){
CHECKED_ALLOCZ(s->dct_error_sum, 2 * 64 * sizeof(int))
CHECKED_ALLOCZ(s->dct_offset, 2 * 64 * sizeof(uint16_t))
}
}
CHECKED_ALLOCZ(s->blocks, 64*6*2 * sizeof(DCTELEM))
CHECKED_ALLOCZ(s->picture, MAX_PICTURE_COUNT * sizeof(Picture))
CHECKED_ALLOCZ(s->error_status_table, mb_array_size*sizeof(uint8_t))
@ -578,12 +653,6 @@ int MPV_common_init(MpegEncContext *s)
//Note the +1 is for a quicker mpeg4 slice_end detection
CHECKED_ALLOCZ(s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE);
s->block= s->blocks[0];
for(i=0;i<12;i++){
s->pblocks[i] = (short *)(&s->block[i]);
}
s->parse_context.state= -1;
if((s->avctx->debug&(FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)){
s->visualization_buffer[0] = av_malloc((s->mb_width*16 + 2*EDGE_WIDTH) * s->mb_height*16 + 2*EDGE_WIDTH);
@ -592,20 +661,38 @@ int MPV_common_init(MpegEncContext *s)
}
s->context_initialized = 1;
s->thread_context[0]= s;
for(i=1; i<s->avctx->thread_count; i++){
s->thread_context[i]= av_malloc(sizeof(MpegEncContext));
memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
}
for(i=0; i<s->avctx->thread_count; i++){
if(init_duplicate_context(s->thread_context[i], s) < 0)
goto fail;
s->thread_context[i]->start_mb_y= (s->mb_height*(i ) + s->avctx->thread_count/2) / s->avctx->thread_count;
s->thread_context[i]->end_mb_y = (s->mb_height*(i+1) + s->avctx->thread_count/2) / s->avctx->thread_count;
}
return 0;
fail:
MPV_common_end(s);
return -1;
}
//extern int sads;
/* init common structure for both encoder and decoder */
void MPV_common_end(MpegEncContext *s)
{
int i, j, k;
for(i=0; i<s->avctx->thread_count; i++){
free_duplicate_context(s->thread_context[i]);
}
for(i=1; i<s->avctx->thread_count; i++){
av_freep(&s->thread_context[i]);
}
av_freep(&s->parse_context.buffer);
s->parse_context.buffer_size=0;
@ -641,16 +728,10 @@ void MPV_common_end(MpegEncContext *s)
av_freep(&s->mbintra_table);
av_freep(&s->cbp_table);
av_freep(&s->pred_dir_table);
av_freep(&s->me.scratchpad);
av_freep(&s->me.map);
av_freep(&s->me.score_map);
av_freep(&s->mbskip_table);
av_freep(&s->prev_pict_types);
av_freep(&s->bitstream_buffer);
av_freep(&s->tex_pb_buffer);
av_freep(&s->pb2_buffer);
av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;
av_freep(&s->avctx->stats_out);
av_freep(&s->ac_stats);
av_freep(&s->error_status_table);
@ -660,7 +741,6 @@ void MPV_common_end(MpegEncContext *s)
av_freep(&s->q_inter_matrix);
av_freep(&s->q_intra_matrix16);
av_freep(&s->q_inter_matrix16);
av_freep(&s->blocks);
av_freep(&s->input_picture);
av_freep(&s->reordered_input_picture);
av_freep(&s->dct_error_sum);
@ -797,6 +877,16 @@ int MPV_encode_init(AVCodecContext *avctx)
av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet\n");
return -1;
}
if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
&& s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
&& (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
return -1;
}
if(s->avctx->thread_count > 1)
s->rtp_mode= 1;
i= ff_gcd(avctx->frame_rate, avctx->frame_rate_base);
if(i > 1){
@ -990,6 +1080,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->chroma_qscale_table= ff_h263_chroma_qscale_table;
s->progressive_frame=
s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME));
s->quant_precision=5;
ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
@ -1903,7 +1994,14 @@ int MPV_encode_picture(AVCodecContext *avctx,
return -1;
}
init_put_bits(&s->pb, buf, buf_size);
for(i=0; i<avctx->thread_count; i++){
int y= s->thread_context[i]->start_mb_y;
int h= s->mb_height;
uint8_t *start= buf + buf_size* y /h;
uint8_t *end = buf + buf_size*(y+1)/h;
init_put_bits(&s->thread_context[i]->pb, start, end - start);
}
s->picture_in_gop_number++;
@ -2400,7 +2498,7 @@ static inline void obmc_motion(MpegEncContext *s,
if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
ptr[i]= ptr[MID];
}else{
ptr[i]= s->edge_emu_buffer + 16 + 8*(i&1) + s->linesize*8*(i>>1);
ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
hpel_motion(s, ptr[i], src,
src_x, src_y,
s->width, s->height, s->linesize,
@ -3026,9 +3124,9 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
dest_cb= s->dest[1];
dest_cr= s->dest[2];
}else{
dest_y = s->edge_emu_buffer+32; //FIXME cleanup scratchpad pointers
dest_cb= s->edge_emu_buffer+48;
dest_cr= s->edge_emu_buffer+56;
dest_y = s->b_scratchpad;
dest_cb= s->b_scratchpad+16*s->linesize;
dest_cr= s->b_scratchpad+16*s->linesize+8;
}
if (!s->mb_intra) {
/* motion handling */
@ -3634,14 +3732,21 @@ void ff_mpeg_flush(AVCodecContext *avctx){
#ifdef CONFIG_ENCODERS
void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length)
{
int bytes= length>>4;
int words= length>>4;
int bits= length&15;
int i;
if(length==0) return;
for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
// if(put_bits_count(pb)&7){ //FIXME
for(i=0; i<words; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
/* }else{
flush_put_bits(pb);
memcpy(pbBufPtr(pb), src, 2*words);
skip_put_bytes(pb, 2*words);
}*/
put_bits(pb, bits, be2me_16(((uint16_t*)src)[words])>>(16-bits));
}
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
@ -3725,11 +3830,10 @@ static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegE
if(*next_block){
memcpy(dest_backup, s->dest, sizeof(s->dest));
s->dest[0] = s->me.scratchpad;
s->dest[1] = s->me.scratchpad + 16;
s->dest[2] = s->me.scratchpad + 16 + 8;
assert(2*s->uvlinesize == s->linesize); //should be no prob for encoding
assert(s->linesize >= 64); //FIXME
s->dest[0] = s->rd_scratchpad;
s->dest[1] = s->rd_scratchpad + 16*s->linesize;
s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
assert(s->linesize >= 32); //FIXME
}
encode_mb(s, motion_x, motion_y);
@ -3797,16 +3901,75 @@ static int sse_mb(MpegEncContext *s){
+sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
}
static void encode_picture(MpegEncContext *s, int picture_number)
{
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= arg;
s->me.pre_pass=1;
s->me.dia_size= s->avctx->pre_dia_size;
s->first_slice_line=1;
for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
}
s->first_slice_line=0;
}
s->me.pre_pass=0;
return 0;
}
static int estimate_motion_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= arg;
s->me.dia_size= s->avctx->dia_size;
s->first_slice_line=1;
for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
s->mb_x=0; //for block init below
ff_init_block_index(s);
for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
s->block_index[0]+=2;
s->block_index[1]+=2;
s->block_index[2]+=2;
s->block_index[3]+=2;
/* compute motion vector & mb_type and store in context */
if(s->pict_type==B_TYPE)
ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
else
ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
}
s->first_slice_line=0;
}
return 0;
}
static void write_slice_end(MpegEncContext *s){
if(s->codec_id==CODEC_ID_MPEG4){
if(s->partitioned_frame){
ff_mpeg4_merge_partitions(s);
}
ff_mpeg4_stuffing(&s->pb);
}else if(s->out_format == FMT_MJPEG){
ff_mjpeg_stuffing(&s->pb);
}
align_put_bits(&s->pb);
flush_put_bits(&s->pb);
}
static int encode_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= arg;
int mb_x, mb_y, pdif = 0;
int i, j;
int bits;
MpegEncContext best_s, backup_s;
uint8_t bit_buf[2][3000];
uint8_t bit_buf2[2][3000];
uint8_t bit_buf_tex[2][3000];
PutBitContext pb[2], pb2[2], tex_pb[2];
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
for(i=0; i<2; i++){
init_put_bits(&pb [i], bit_buf [i], 3000);
@ -3814,236 +3977,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000);
}
s->picture_number = picture_number;
/* Reset the average MB variance */
s->current_picture.mb_var_sum = 0;
s->current_picture.mc_mb_var_sum = 0;
#ifdef CONFIG_RISKY
/* 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);
#endif
s->scene_change_score=0;
s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
if(s->pict_type==I_TYPE){
if(s->msmpeg4_version >= 3) s->no_rounding=1;
else s->no_rounding=0;
}else if(s->pict_type!=B_TYPE){
if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
s->no_rounding ^= 1;
}
/* Estimate motion for every MB */
s->mb_intra=0; //for the rate distoration & bit compare functions
if(s->pict_type != I_TYPE){
if(s->pict_type != B_TYPE){
if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
s->me.pre_pass=1;
s->me.dia_size= s->avctx->pre_dia_size;
for(mb_y=s->mb_height-1; mb_y >=0 ; mb_y--) {
s->mb_y = mb_y;
for(mb_x=s->mb_width-1; mb_x >=0 ; mb_x--) {
s->mb_x = mb_x;
ff_pre_estimate_p_frame_motion(s, mb_x, mb_y);
}
}
s->me.pre_pass=0;
}
}
s->me.dia_size= s->avctx->dia_size;
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
s->mb_y = mb_y;
s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
s->mb_x = mb_x;
s->block_index[0]+=2;
s->block_index[1]+=2;
s->block_index[2]+=2;
s->block_index[3]+=2;
/* compute motion vector & mb_type and store in context */
if(s->pict_type==B_TYPE)
ff_estimate_b_frame_motion(s, mb_x, mb_y);
else
ff_estimate_p_frame_motion(s, mb_x, mb_y);
}
}
}else /* if(s->pict_type == I_TYPE) */{
/* I-Frame */
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
if(!s->fixed_qscale){
/* finding spatial complexity for I-frame rate control */
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
int xx = mb_x * 16;
int yy = mb_y * 16;
uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
int varc;
int sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
s->current_picture.mb_var_sum += varc;
}
}
}
}
emms_c();
if(s->scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
s->pict_type= I_TYPE;
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
}
if(!s->umvplus){
if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int a,b;
a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
s->f_code= FFMAX(s->f_code, FFMAX(a,b));
}
ff_fix_long_p_mvs(s);
ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
for(i=0; i<2; i++){
for(j=0; j<2; j++)
ff_fix_long_mvs(s, s->p_field_select_table[i], j,
s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
}
}
}
if(s->pict_type==B_TYPE){
int a, b;
a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->f_code = FFMAX(a, b);
a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->b_code = FFMAX(a, b);
ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int dir;
for(dir=0; dir<2; dir++){
for(i=0; i<2; i++){
for(j=0; j<2; j++){
int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
: (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
}
}
}
}
}
}
if (!s->fixed_qscale)
s->current_picture.quality = ff_rate_estimate_qscale(s);
if(s->adaptive_quant){
#ifdef CONFIG_RISKY
switch(s->codec_id){
case CODEC_ID_MPEG4:
ff_clean_mpeg4_qscales(s);
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
ff_clean_h263_qscales(s);
break;
}
#endif
s->lambda= s->lambda_table[0];
//FIXME broken
}else
s->lambda= s->current_picture.quality;
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
update_qscale(s);
if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
s->qscale= 3; //reduce cliping problems
if (s->out_format == FMT_MJPEG) {
/* for mjpeg, we do include qscale in the matrix */
s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
for(i=1;i<64;i++){
int j= s->dsp.idct_permutation[i];
s->intra_matrix[j] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
}
convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, 8, 8);
s->qscale= 8;
}
//FIXME var duplication
s->current_picture.key_frame= s->pict_type == I_TYPE;
s->current_picture.pict_type= s->pict_type;
if(s->current_picture.key_frame)
s->picture_in_gop_number=0;
s->last_bits= put_bits_count(&s->pb);
switch(s->out_format) {
case FMT_MJPEG:
mjpeg_picture_header(s);
break;
#ifdef CONFIG_RISKY
case FMT_H263:
if (s->codec_id == CODEC_ID_WMV2)
ff_wmv2_encode_picture_header(s, picture_number);
else if (s->h263_msmpeg4)
msmpeg4_encode_picture_header(s, picture_number);
else if (s->h263_pred)
mpeg4_encode_picture_header(s, picture_number);
else if (s->codec_id == CODEC_ID_RV10)
rv10_encode_picture_header(s, picture_number);
else if (s->codec_id == CODEC_ID_FLV1)
ff_flv_encode_picture_header(s, picture_number);
else
h263_encode_picture_header(s, picture_number);
break;
#endif
case FMT_MPEG1:
mpeg1_encode_picture_header(s, picture_number);
break;
case FMT_H264:
break;
default:
assert(0);
}
bits= put_bits_count(&s->pb);
s->header_bits= bits - s->last_bits;
s->last_bits= bits;
s->mv_bits=0;
s->misc_bits=0;
s->i_tex_bits=0;
@ -4080,10 +4014,11 @@ static void encode_picture(MpegEncContext *s, int picture_number)
#endif
s->resync_mb_x=0;
s->resync_mb_y=0;
s->resync_mb_y=0;
s->first_slice_line = 1;
s->ptr_lastgob = s->pb.buf;
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
// printf("row %d at %X\n", s->mb_y, (int)s);
s->mb_x=0;
s->mb_y= mb_y;
@ -4105,10 +4040,12 @@ static void encode_picture(MpegEncContext *s, int picture_number)
if(s->rtp_mode){
int current_packet_size, is_gob_start;
current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob; //FIXME wrong
is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
switch(s->codec_id){
case CODEC_ID_H263:
case CODEC_ID_H263P:
@ -4121,19 +4058,16 @@ static void encode_picture(MpegEncContext *s, int picture_number)
if(s->mb_skip_run) is_gob_start=0;
break;
}
if(is_gob_start){
if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
ff_mpeg4_merge_partitions(s);
ff_mpeg4_init_partitions(s);
if(s->start_mb_y != mb_y || mb_x!=0){
write_slice_end(s);
if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
ff_mpeg4_init_partitions(s);
}
}
if(s->codec_id==CODEC_ID_MPEG4)
ff_mpeg4_stuffing(&s->pb);
align_put_bits(&s->pb);
flush_put_bits(&s->pb);
assert((put_bits_count(&s->pb)&7) == 0);
current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
@ -4417,10 +4351,10 @@ static void encode_picture(MpegEncContext *s, int picture_number)
ff_h263_update_motion_val(s);
#endif
if(next_block==0){
s->dsp.put_pixels_tab[0][0](s->dest[0], s->me.scratchpad , s->linesize ,16);
s->dsp.put_pixels_tab[1][0](s->dest[1], s->me.scratchpad + 16, s->uvlinesize, 8);
s->dsp.put_pixels_tab[1][0](s->dest[2], s->me.scratchpad + 24, s->uvlinesize, 8);
if(next_block==0){ //FIXME 16 vs linesize16
s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
}
if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
@ -4577,26 +4511,286 @@ static void encode_picture(MpegEncContext *s, int picture_number)
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
}
}
emms_c();
#ifdef CONFIG_RISKY
if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
ff_mpeg4_merge_partitions(s);
//not beautifull here but we must write it before flushing so it has to be here
if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
msmpeg4_encode_ext_header(s);
if(s->codec_id==CODEC_ID_MPEG4)
ff_mpeg4_stuffing(&s->pb);
#endif
write_slice_end(s);
/* Send the last GOB if RTP */
if (s->avctx->rtp_callback) {
flush_put_bits(&s->pb);
pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
/* Call the RTP callback to send the last GOB */
emms_c();
s->avctx->rtp_callback(s->ptr_lastgob, pdif, 0);
}
return 0;
}
#define MERGE(field) dst->field += src->field; src->field=0
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
MERGE(scene_change_score);
MERGE(mc_mb_var_sum_temp);
MERGE(mb_var_sum_temp);
}
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
int i;
MERGE(dct_count[0]); //note, the other dct vars are not part of the context
MERGE(dct_count[1]);
MERGE(mv_bits);
MERGE(header_bits);
MERGE(i_tex_bits);
MERGE(p_tex_bits);
MERGE(i_count);
MERGE(f_count);
MERGE(b_count);
MERGE(skip_count);
MERGE(misc_bits);
MERGE(error_count);
MERGE(padding_bug_score);
if(dst->avctx->noise_reduction){
for(i=0; i<64; i++){
MERGE(dct_error_sum[0][i]);
MERGE(dct_error_sum[1][i]);
}
}
assert(put_bits_count(&src->pb) % 8 ==0);
assert(put_bits_count(&dst->pb) % 8 ==0);
ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
flush_put_bits(&dst->pb);
}
static void encode_picture(MpegEncContext *s, int picture_number)
{
int mb_x, mb_y;
int i, j;
int bits;
s->picture_number = picture_number;
/* Reset the average MB variance */
s->mb_var_sum_temp =
s->mc_mb_var_sum_temp = 0;
#ifdef CONFIG_RISKY
/* 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);
#endif
s->scene_change_score=0;
s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
if(s->pict_type==I_TYPE){
if(s->msmpeg4_version >= 3) s->no_rounding=1;
else s->no_rounding=0;
}else if(s->pict_type!=B_TYPE){
if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
s->no_rounding ^= 1;
}
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);
}
/* Estimate motion for every MB */
if(s->pict_type != I_TYPE){
if(s->pict_type != B_TYPE){
if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
}
}
s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
for(i=1; i<s->avctx->thread_count; i++){
merge_context_after_me(s, s->thread_context[i]);
}
}else /* if(s->pict_type == I_TYPE) */{
/* I-Frame */
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
if(!s->fixed_qscale){
/* finding spatial complexity for I-frame rate control */
for(mb_y=0; mb_y < s->mb_height; mb_y++) {
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
int xx = mb_x * 16;
int yy = mb_y * 16;
uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
int varc;
int sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
s->mb_var_sum_temp += varc;
}
}
}
}
s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->mc_mb_var_sum_temp;
s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s-> mb_var_sum_temp;
emms_c();
if(s->scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
s->pict_type= I_TYPE;
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
}
if(!s->umvplus){
if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int a,b;
a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
s->f_code= FFMAX(s->f_code, FFMAX(a,b));
}
ff_fix_long_p_mvs(s);
ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
for(i=0; i<2; i++){
for(j=0; j<2; j++)
ff_fix_long_mvs(s, s->p_field_select_table[i], j,
s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
}
}
}
if(s->pict_type==B_TYPE){
int a, b;
a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->f_code = FFMAX(a, b);
a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->b_code = FFMAX(a, b);
ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int dir;
for(dir=0; dir<2; dir++){
for(i=0; i<2; i++){
for(j=0; j<2; j++){
int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
: (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
}
}
}
}
}
}
if (!s->fixed_qscale)
s->current_picture.quality = ff_rate_estimate_qscale(s); //FIXME pic_ptr
if(s->adaptive_quant){
#ifdef CONFIG_RISKY
switch(s->codec_id){
case CODEC_ID_MPEG4:
ff_clean_mpeg4_qscales(s);
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
ff_clean_h263_qscales(s);
break;
}
#endif
s->lambda= s->lambda_table[0];
//FIXME broken
}else
s->lambda= s->current_picture.quality;
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
update_qscale(s);
if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
s->qscale= 3; //reduce cliping problems
if (s->out_format == FMT_MJPEG) {
/* for mjpeg, we do include qscale in the matrix */
s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
for(i=1;i<64;i++){
int j= s->dsp.idct_permutation[i];
s->intra_matrix[j] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
}
convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, 8, 8);
s->qscale= 8;
}
//FIXME var duplication
s->current_picture.key_frame= s->pict_type == I_TYPE; //FIXME pic_ptr
s->current_picture.pict_type= s->pict_type;
if(s->current_picture.key_frame)
s->picture_in_gop_number=0;
s->last_bits= put_bits_count(&s->pb);
switch(s->out_format) {
case FMT_MJPEG:
mjpeg_picture_header(s);
break;
#ifdef CONFIG_RISKY
case FMT_H263:
if (s->codec_id == CODEC_ID_WMV2)
ff_wmv2_encode_picture_header(s, picture_number);
else if (s->h263_msmpeg4)
msmpeg4_encode_picture_header(s, picture_number);
else if (s->h263_pred)
mpeg4_encode_picture_header(s, picture_number);
else if (s->codec_id == CODEC_ID_RV10)
rv10_encode_picture_header(s, picture_number);
else if (s->codec_id == CODEC_ID_FLV1)
ff_flv_encode_picture_header(s, picture_number);
else
h263_encode_picture_header(s, picture_number);
break;
#endif
case FMT_MPEG1:
mpeg1_encode_picture_header(s, picture_number);
break;
case FMT_H264:
break;
default:
assert(0);
}
bits= put_bits_count(&s->pb);
s->header_bits= bits - s->last_bits;
for(i=1; i<s->avctx->thread_count; i++){
update_duplicate_context_after_me(s->thread_context[i], s);
}
s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
for(i=1; i<s->avctx->thread_count; i++){
merge_context_after_encode(s, s->thread_context[i]);
}
emms_c();
}
#endif //CONFIG_ENCODERS

19
libavcodec/mpegvideo.h
View File

@ -47,6 +47,8 @@ enum OutputFormat {
#define MAX_FCODE 7
#define MAX_MV 2048
#define MAX_THREADS 8
#define MAX_PICTURE_COUNT 15
#define ME_MAP_SIZE 64
@ -285,6 +287,10 @@ typedef struct MpegEncContext {
Picture **input_picture; ///< next pictures on display order for encoding
Picture **reordered_input_picture; ///< pointer to the next pictures in codedorder for encoding
int start_mb_y; ///< start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
int end_mb_y; ///< end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y)
struct MpegEncContext *thread_context[MAX_THREADS];
/**
* copy of the previous picture structure.
* note, linesize & data, might not match the previous picture (for field pictures)
@ -332,7 +338,10 @@ typedef struct MpegEncContext {
uint8_t *cbp_table; ///< used to store cbp, ac_pred for partitioned decoding
uint8_t *pred_dir_table; ///< used to store pred_dir for partitioned decoding
uint8_t *allocated_edge_emu_buffer;
uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer
uint8_t *rd_scratchpad; ///< scartchpad for rate distortion mb decission
uint8_t *obmc_scratchpad;
uint8_t *b_scratchpad; ///< scratchpad used for writing into write only buffers
int qscale; ///< QP
int chroma_qscale; ///< chroma QP
@ -487,6 +496,10 @@ typedef struct MpegEncContext {
int misc_bits; ///< cbp, mb_type
int last_bits; ///< temp var used for calculating the above vars
/* temp variables for picture complexity calculation */
int mc_mb_var_sum_temp;
int mb_var_sum_temp;
/* error concealment / resync */
int error_count;
uint8_t *error_status_table; ///< table of the error status of each MB
@ -565,9 +578,6 @@ typedef struct MpegEncContext {
int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
PutBitContext tex_pb; ///< used for data partitioned VOPs
PutBitContext pb2; ///< used for data partitioned VOPs
#define PB_BUFFER_SIZE 1024*256
uint8_t *tex_pb_buffer;
uint8_t *pb2_buffer;
int mpeg_quant;
int t_frame; ///< time distance of first I -> B, used for interlaced b frames
int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
@ -908,6 +918,7 @@ void mjpeg_encode_mb(MpegEncContext *s,
DCTELEM block[6][64]);
void mjpeg_picture_header(MpegEncContext *s);
void mjpeg_picture_trailer(MpegEncContext *s);
void ff_mjpeg_stuffing(PutBitContext * pbc);
/* rate control */

139
libavcodec/pthread.c Normal file
View File

@ -0,0 +1,139 @@
/*
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <semaphore.h>
#include <pthread.h>
//#define DEBUG
#include "avcodec.h"
#include "common.h"
typedef struct ThreadContext{
AVCodecContext *avctx;
pthread_t thread;
sem_t work_sem;
sem_t done_sem;
int (*func)(AVCodecContext *c, void *arg);
void *arg;
int ret;
}ThreadContext;
static void * thread_func(void *v){
ThreadContext *c= v;
for(;;){
//printf("thread_func %X enter wait\n", (int)v); fflush(stdout);
sem_wait(&c->work_sem);
//printf("thread_func %X after wait (func=%X)\n", (int)v, (int)c->func); fflush(stdout);
if(c->func)
c->ret= c->func(c->avctx, c->arg);
else
return NULL;
//printf("thread_func %X signal complete\n", (int)v); fflush(stdout);
sem_post(&c->done_sem);
}
return NULL;
}
/**
* free what has been allocated by avcodec_pthread_init().
* must be called after decoding has finished, especially dont call while avcodec_pthread_execute() is running
*/
void avcodec_pthread_free(AVCodecContext *s){
ThreadContext *c= s->thread_opaque;
int i;
for(i=0; i<s->thread_count; i++){
int val;
sem_getvalue(&c[i].work_sem, &val); assert(val == 0);
sem_getvalue(&c[i].done_sem, &val); assert(val == 0);
c[i].func= NULL;
sem_post(&c[i].work_sem);
pthread_join(c[i].thread, NULL);
sem_destroy(&c[i].work_sem);
sem_destroy(&c[i].done_sem);
}
av_freep(&s->thread_opaque);
}
int avcodec_pthread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
ThreadContext *c= s->thread_opaque;
int i, val;
assert(s == c->avctx);
assert(count <= s->thread_count);
/* note, we can be certain that this is not called with the same AVCodecContext by different threads at the same time */
for(i=0; i<count; i++){
sem_getvalue(&c[i].work_sem, &val); assert(val == 0);
sem_getvalue(&c[i].done_sem, &val); assert(val == 0);
c[i].arg= arg[i];
c[i].func= func;
c[i].ret= 12345;
sem_post(&c[i].work_sem);
}
for(i=0; i<count; i++){
sem_wait(&c[i].done_sem);
sem_getvalue(&c[i].work_sem, &val); assert(val == 0);
sem_getvalue(&c[i].done_sem, &val); assert(val == 0);
c[i].func= NULL;
if(ret) ret[i]= c[i].ret;
}
return 0;
}
int avcodec_pthread_init(AVCodecContext *s, int thread_count){
int i;
ThreadContext *c;
s->thread_count= thread_count;
assert(!s->thread_opaque);
c= av_mallocz(sizeof(ThreadContext)*thread_count);
s->thread_opaque= c;
for(i=0; i<thread_count; i++){
//printf("init semaphors %d\n", i); fflush(stdout);
c[i].avctx= s;
if(sem_init(&c[i].work_sem, 0, 0))
goto fail;
if(sem_init(&c[i].done_sem, 0, 0))
goto fail;
//printf("create thread %d\n", i); fflush(stdout);
if(pthread_create(&c[i].thread, NULL, thread_func, &c[i]))
goto fail;
}
//printf("init done\n"); fflush(stdout);
s->execute= avcodec_pthread_execute;
return 0;
fail:
avcodec_pthread_free(s);
return -1;
}

12
libavcodec/utils.c
View File

@ -324,6 +324,16 @@ int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
return 0;
}
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
int i;
for(i=0; i<count; i++){
int r= func(c, arg[i]);
if(ret) ret[i]= r;
}
return 0;
}
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, enum PixelFormat * fmt){
return fmt[0];
}
@ -352,6 +362,8 @@ void avcodec_get_context_defaults(AVCodecContext *s){
s->get_buffer= avcodec_default_get_buffer;
s->release_buffer= avcodec_default_release_buffer;
s->get_format= avcodec_default_get_format;
s->execute= avcodec_default_execute;
s->thread_count=1;
s->me_subpel_quality=8;
s->lmin= FF_QP2LAMBDA * s->qmin;
s->lmax= FF_QP2LAMBDA * s->qmax;

8
tests/ffmpeg.regression.ref
View File

@ -8,6 +8,9 @@ stddev: 7.65 PSNR:30.44 bytes:7602176
13336cffcba456ff4a7607b2a7e57b33 *./data/a-mpeg2i.mpg
4c9701eb83ed81dd9a328af83d7d7c8a *./data/out.yuv
stddev: 7.66 PSNR:30.43 bytes:7602176
8c4a7744f40a1e7aa16b985ecaad176a *./data/a-mpeg2thread.mpg
12ab090b699c130e5aef8e050965f092 *./data/out.yuv
stddev: 9.44 PSNR:28.62 bytes:7299072
d0dc46dd831398237a690ebbeff18b64 *./data/a-msmpeg4v2.avi
712aa6c959d1d90a78fe98657cbff19c *./data/out.yuv
stddev: 8.11 PSNR:29.94 bytes:7602176
@ -38,10 +41,13 @@ stddev: 10.18 PSNR:27.96 bytes:7145472
64b4b917014169294d59fe43ad6b3da9 *./data/a-mpeg4-adv.avi
8069deacba9756fd25ad37b467eb6365 *./data/out.yuv
stddev: 10.23 PSNR:27.92 bytes:7602176
96453d489d5418e382824cfb2673ac58 *./data/a-mpeg4-thread.avi
17ec2d72186dbb72d8a79cd448796cef *./data/out.yuv
stddev: 12.09 PSNR:26.47 bytes:7145472
f863f4198521bd76930ea33991b47273 *./data/a-error-mpeg4-adv.avi
ba7fcd126c7c9fead5a5de71aaaf0624 *./data/out.yuv
stddev: 16.80 PSNR:23.61 bytes:7602176
198ad515da4f330d780c54fd8d6186ab *./data/a-error-mpeg4-nr.avi
198ad515da4f330d780c54fd8d6186ab *./data/a-mpeg4-nr.avi
ebdb326e19aeab8e3c70d7050dc3b240 *./data/out.yuv
stddev: 7.02 PSNR:31.19 bytes:7602176
328ebd044362116e274739e23c482ee7 *./data/a-mpeg1b.mpg

24
tests/regression.sh
View File

@ -33,6 +33,7 @@ elif [ "$1" = "libavtest" ] ; then
else
do_mpeg=y
do_mpeg2=y
do_mpeg2thread=y
do_msmpeg4v2=y
do_msmpeg4=y
do_wmv1=y
@ -51,6 +52,7 @@ else
do_adpcm_ms=y
do_rc=y
do_mpeg4adv=y
do_mpeg4thread=y
do_mpeg4nr=y
do_mpeg1b=y
do_asv1=y
@ -148,6 +150,16 @@ do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -vcodec mpeg2video -f mpeg1v
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst
fi
###################################
if [ -n "$do_mpeg2thread" ] ; then
# mpeg2 encoding interlaced
file=${outfile}mpeg2thread.mpg
do_ffmpeg $file -y -qscale 10 -f pgmyuv -i $raw_src -vcodec mpeg2video -f mpeg1video -bf 2 -ildct -ilme -threads 2 $file
# mpeg2 decoding
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst
fi
###################################
if [ -n "$do_msmpeg4v2" ] ; then
# msmpeg4 encoding
@ -248,6 +260,16 @@ do_ffmpeg $file -y -qscale 9 -4mv -hq -part -ps 200 -aic -trell -f pgmyuv -i $ra
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst
fi
###################################
if [ -n "$do_mpeg4thread" ] ; then
# mpeg4
file=${outfile}mpeg4-thread.avi
do_ffmpeg $file -y -b 500 -4mv -hq -part -ps 200 -aic -trell -bf 2 -f pgmyuv -i $raw_src -an -vcodec mpeg4 -threads 2 $file
# mpeg4 decoding
do_ffmpeg $raw_dst -y -i $file -f rawvideo $raw_dst
fi
###################################
if [ -n "$do_error" ] ; then
# damaged mpeg4
@ -261,7 +283,7 @@ fi
###################################
if [ -n "$do_mpeg4nr" ] ; then
# noise reduction
file=${outfile}error-mpeg4-nr.avi
file=${outfile}mpeg4-nr.avi
do_ffmpeg $file -y -qscale 8 -4mv -mbd 2 -nr 200 -f pgmyuv -i $raw_src -an -vcodec mpeg4 $file
# mpeg4 decoding

8
tests/rotozoom.regression.ref
View File

@ -8,6 +8,9 @@ stddev: 4.95 PSNR:34.22 bytes:7602176
6da01fd0d910fbfcdc5b212ef3dd65cb *./data/a-mpeg2i.mpg
1e21fd7ed53abf352f9ea8548afa80a3 *./data/out.yuv
stddev: 4.96 PSNR:34.20 bytes:7602176
a3dd9c2911c9556d377ab1465f7365b4 *./data/a-mpeg2thread.mpg
8cf98fa5c59c959e35389a1a7180b379 *./data/out.yuv
stddev: 5.55 PSNR:33.22 bytes:7299072
14db391f167b52b21a983157b410affc *./data/a-msmpeg4v2.avi
fc8881e0904af9491d5fa0163183954b *./data/out.yuv
stddev: 5.29 PSNR:33.64 bytes:7602176
@ -38,10 +41,13 @@ stddev: 4.20 PSNR:35.64 bytes:7145472
accf60d11aceecabb3c1997aec6e18b5 *./data/a-mpeg4-adv.avi
a287b07b812fbeeb5364517303178ac7 *./data/out.yuv
stddev: 4.77 PSNR:34.54 bytes:7602176
8750b3935266211fea6b062f445bb305 *./data/a-mpeg4-thread.avi
aee1867b77490b3f8d58fcc9b7c5b535 *./data/out.yuv
stddev: 3.92 PSNR:36.25 bytes:7145472
03ff35856faefb4882eaf4d86d95bea7 *./data/a-error-mpeg4-adv.avi
8550acff0851ee915bd5800f1e20f37c *./data/out.yuv
stddev: 9.66 PSNR:28.42 bytes:7602176
74dbbba19d250a712702b1893c003461 *./data/a-error-mpeg4-nr.avi
74dbbba19d250a712702b1893c003461 *./data/a-mpeg4-nr.avi
81b985840c03bf101302abde131e3900 *./data/out.yuv
stddev: 4.67 PSNR:34.73 bytes:7602176
671802a2c5078e69f7f422765ea87f2a *./data/a-mpeg1b.mpg