/*
- *
+ *
* Copyright (C) 2002 the xine project
* Copyright (C) 2002 the ffmpeg project
- *
+ *
* 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
*
* 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* (SVQ1 Decoder)
* Ported to mplayer by Arpi <arpi@thot.banki.hu>
#undef NDEBUG
#include <assert.h>
+extern const uint8_t mvtab[33][2];
+
static VLC svq1_block_type;
static VLC svq1_motion_component;
static VLC svq1_intra_multistage[6];
static VLC svq1_intra_mean;
static VLC svq1_inter_mean;
-#define MEDIAN(a,b,c) (((a < b) != (b >= c)) ? b : (((a < c) != (c > b)) ? c : a))
-
-#define SVQ1_BLOCK_SKIP 0
-#define SVQ1_BLOCK_INTER 1
-#define SVQ1_BLOCK_INTER_4V 2
-#define SVQ1_BLOCK_INTRA 3
+#define SVQ1_BLOCK_SKIP 0
+#define SVQ1_BLOCK_INTER 1
+#define SVQ1_BLOCK_INTER_4V 2
+#define SVQ1_BLOCK_INTRA 3
typedef struct SVQ1Context {
-
+ MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to make the motion estimation eventually independant of MpegEncContext, so this will be removed then (FIXME/XXX)
AVCodecContext *avctx;
DSPContext dsp;
AVFrame picture;
+ AVFrame current_picture;
+ AVFrame last_picture;
PutBitContext pb;
GetBitContext gb;
-
+
PutBitContext reorder_pb[6]; //why ooh why this sick breadth first order, everything is slower and more complex
int frame_width;
int c_block_width;
int c_block_height;
- unsigned char *c_plane;
+ uint16_t *mb_type;
+ uint32_t *dummy;
+ int16_t (*motion_val8[3])[2];
+ int16_t (*motion_val16[3])[2];
+ int64_t rd_total;
} SVQ1Context;
/* motion vector (prediction) */
typedef struct svq1_pmv_s {
- int x;
- int y;
+ int x;
+ int y;
} svq1_pmv_t;
#include "svq1_cb.h"
for (; level > 0; i++) {\
/* process next depth */\
if (i == m) {\
- m = n;\
- if (--level == 0)\
- break;\
+ m = n;\
+ if (--level == 0)\
+ break;\
}\
/* divide block if next bit set */\
if (get_bits (bitbuf, 1) == 0)\
- break;\
+ break;\
/* add child nodes */\
list[n++] = list[i];\
list[n++] = list[i] + (((level & 1) ? pitch : 1) << ((level / 2) + 1));\
}
#define SVQ1_ADD_CODEBOOK()\
- /* add codebook entries to vector */\
- for (j=0; j < stages; j++) {\
- n3 = codebook[entries[j]] ^ 0x80808080;\
- n1 += ((n3 & 0xFF00FF00) >> 8);\
- n2 += (n3 & 0x00FF00FF);\
- }\
+ /* add codebook entries to vector */\
+ for (j=0; j < stages; j++) {\
+ n3 = codebook[entries[j]] ^ 0x80808080;\
+ n1 += ((n3 & 0xFF00FF00) >> 8);\
+ n2 += (n3 & 0x00FF00FF);\
+ }\
\
- /* clip to [0..255] */\
- if (n1 & 0xFF00FF00) {\
- n3 = ((( n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
- n1 += 0x7F007F00;\
- n1 |= (((~n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
- n1 &= (n3 & 0x00FF00FF);\
- }\
+ /* clip to [0..255] */\
+ if (n1 & 0xFF00FF00) {\
+ n3 = ((( n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
+ n1 += 0x7F007F00;\
+ n1 |= (((~n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
+ n1 &= (n3 & 0x00FF00FF);\
+ }\
\
- if (n2 & 0xFF00FF00) {\
- n3 = ((( n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
- n2 += 0x7F007F00;\
- n2 |= (((~n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
- n2 &= (n3 & 0x00FF00FF);\
- }
+ if (n2 & 0xFF00FF00) {\
+ n3 = ((( n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
+ n2 += 0x7F007F00;\
+ n2 |= (((~n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;\
+ n2 &= (n3 & 0x00FF00FF);\
+ }
#define SVQ1_DO_CODEBOOK_INTRA()\
for (y=0; y < height; y++) {\
- for (x=0; x < (width / 4); x++, codebook++) {\
- n1 = n4;\
- n2 = n4;\
- SVQ1_ADD_CODEBOOK()\
- /* store result */\
- dst[x] = (n1 << 8) | n2;\
- }\
- dst += (pitch / 4);\
+ for (x=0; x < (width / 4); x++, codebook++) {\
+ n1 = n4;\
+ n2 = n4;\
+ SVQ1_ADD_CODEBOOK()\
+ /* store result */\
+ dst[x] = (n1 << 8) | n2;\
+ }\
+ dst += (pitch / 4);\
}
#define SVQ1_DO_CODEBOOK_NONINTRA()\
for (y=0; y < height; y++) {\
- for (x=0; x < (width / 4); x++, codebook++) {\
- n3 = dst[x];\
- /* add mean value to vector */\
- n1 = ((n3 & 0xFF00FF00) >> 8) + n4;\
- n2 = (n3 & 0x00FF00FF) + n4;\
- SVQ1_ADD_CODEBOOK()\
- /* store result */\
- dst[x] = (n1 << 8) | n2;\
- }\
- dst += (pitch / 4);\
+ for (x=0; x < (width / 4); x++, codebook++) {\
+ n3 = dst[x];\
+ /* add mean value to vector */\
+ n1 = ((n3 & 0xFF00FF00) >> 8) + n4;\
+ n2 = (n3 & 0x00FF00FF) + n4;\
+ SVQ1_ADD_CODEBOOK()\
+ /* store result */\
+ dst[x] = (n1 << 8) | n2;\
+ }\
+ dst += (pitch / 4);\
}
#define SVQ1_CALC_CODEBOOK_ENTRIES(cbook)\
bit_cache = get_bits (bitbuf, 4*stages);\
/* calculate codebook entries for this vector */\
for (j=0; j < stages; j++) {\
- entries[j] = (((bit_cache >> (4*(stages - j - 1))) & 0xF) + 16*j) << (level + 1);\
+ entries[j] = (((bit_cache >> (4*(stages - j - 1))) & 0xF) + 16*j) << (level + 1);\
}\
mean -= (stages * 128);\
n4 = ((mean + (mean >> 31)) << 16) | (mean & 0xFFFF);
uint8_t *list[63];
uint32_t *dst;
const uint32_t *codebook;
- int entries[6];
- int i, j, m, n;
- int mean, stages;
+ int entries[6];
+ int i, j, m, n;
+ int mean, stages;
unsigned x, y, width, height, level;
uint32_t n1, n2, n3, n4;
stages = get_vlc2(bitbuf, svq1_intra_multistage[level].table, 3, 3) - 1;
if (stages == -1) {
- for (y=0; y < height; y++) {
- memset (&dst[y*(pitch / 4)], 0, width);
- }
- continue; /* skip vector */
+ for (y=0; y < height; y++) {
+ memset (&dst[y*(pitch / 4)], 0, width);
+ }
+ continue; /* skip vector */
}
if ((stages > 0) && (level >= 4)) {
#ifdef DEBUG_SVQ1
av_log(s->avctx, AV_LOG_INFO, "Error (svq1_decode_block_intra): invalid vector: stages=%i level=%i\n",stages,level);
#endif
- return -1; /* invalid vector */
+ return -1; /* invalid vector */
}
mean = get_vlc2(bitbuf, svq1_intra_mean.table, 8, 3);
if (stages == 0) {
for (y=0; y < height; y++) {
- memset (&dst[y*(pitch / 4)], mean, width);
+ memset (&dst[y*(pitch / 4)], mean, width);
}
} else {
SVQ1_CALC_CODEBOOK_ENTRIES(svq1_intra_codebooks);
uint8_t *list[63];
uint32_t *dst;
const uint32_t *codebook;
- int entries[6];
- int i, j, m, n;
- int mean, stages;
- int x, y, width, height, level;
+ int entries[6];
+ int i, j, m, n;
+ int mean, stages;
+ int x, y, width, height, level;
uint32_t n1, n2, n3, n4;
/* initialize list for breadth first processing of vectors */
/* get number of stages (-1 skips vector, 0 for mean only) */
stages = get_vlc2(bitbuf, svq1_inter_multistage[level].table, 3, 2) - 1;
- if (stages == -1) continue; /* skip vector */
+ if (stages == -1) continue; /* skip vector */
if ((stages > 0) && (level >= 4)) {
#ifdef DEBUG_SVQ1
av_log(s->avctx, AV_LOG_INFO, "Error (svq1_decode_block_non_intra): invalid vector: stages=%i level=%i\n",stages,level);
#endif
- return -1; /* invalid vector */
+ return -1; /* invalid vector */
}
mean = get_vlc2(bitbuf, svq1_inter_mean.table, 9, 3) - 256;
}
static int svq1_decode_motion_vector (GetBitContext *bitbuf, svq1_pmv_t *mv, svq1_pmv_t **pmv) {
- int diff;
- int i;
+ int diff;
+ int i;
for (i=0; i < 2; i++) {
/* get motion code */
- diff = get_vlc2(bitbuf, svq1_motion_component.table, 7, 2) - 32;
+ diff = get_vlc2(bitbuf, svq1_motion_component.table, 7, 2);
+ if(diff<0)
+ return -1;
+ else if(diff){
+ if(get_bits1(bitbuf)) diff= -diff;
+ }
/* add median of motion vector predictors and clip result */
if (i == 1)
- mv->y = ((diff + MEDIAN(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26;
+ mv->y = ((diff + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26;
else
- mv->x = ((diff + MEDIAN(pmv[0]->x, pmv[1]->x, pmv[2]->x)) << 26) >> 26;
+ mv->x = ((diff + mid_pred(pmv[0]->x, pmv[1]->x, pmv[2]->x)) << 26) >> 26;
}
return 0;
static void svq1_skip_block (uint8_t *current, uint8_t *previous, int pitch, int x, int y) {
uint8_t *src;
uint8_t *dst;
- int i;
+ int i;
src = &previous[x + y*pitch];
dst = current;
}
static int svq1_motion_inter_block (MpegEncContext *s, GetBitContext *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion, int x, int y) {
+ uint8_t *current, uint8_t *previous, int pitch,
+ svq1_pmv_t *motion, int x, int y) {
uint8_t *src;
uint8_t *dst;
svq1_pmv_t mv;
svq1_pmv_t *pmv[3];
- int result;
+ int result;
/* predict and decode motion vector */
pmv[0] = &motion[0];
if (result != 0)
return result;
- motion[0].x =
- motion[(x / 8) + 2].x =
- motion[(x / 8) + 3].x = mv.x;
- motion[0].y =
- motion[(x / 8) + 2].y =
- motion[(x / 8) + 3].y = mv.y;
-
+ motion[0].x =
+ motion[(x / 8) + 2].x =
+ motion[(x / 8) + 3].x = mv.x;
+ motion[0].y =
+ motion[(x / 8) + 2].y =
+ motion[(x / 8) + 3].y = mv.y;
+
if(y + (mv.y >> 1)<0)
mv.y= 0;
if(x + (mv.x >> 1)<0)
if(x + (mv.x >> 1)<0 || y + (mv.y >> 1)<0 || x + (mv.x >> 1) + 16 > w || y + (mv.y >> 1) + 16> h)
av_log(s->avctx, AV_LOG_INFO, "%d %d %d %d\n", x, y, x + (mv.x >> 1), y + (mv.y >> 1));
#endif
-
+
src = &previous[(x + (mv.x >> 1)) + (y + (mv.y >> 1))*pitch];
dst = current;
}
static int svq1_motion_inter_4v_block (MpegEncContext *s, GetBitContext *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion,int x, int y) {
+ uint8_t *current, uint8_t *previous, int pitch,
+ svq1_pmv_t *motion,int x, int y) {
uint8_t *src;
uint8_t *dst;
svq1_pmv_t mv;
svq1_pmv_t *pmv[4];
- int i, result;
+ int i, result;
/* predict and decode motion vector (0) */
pmv[0] = &motion[0];
for (i=0; i < 4; i++) {
int mvx= pmv[i]->x + (i&1)*16;
int mvy= pmv[i]->y + (i>>1)*16;
-
+
///XXX /FIXME cliping or padding?
if(y + (mvy >> 1)<0)
mvy= 0;
#endif
src = &previous[(x + (mvx >> 1)) + (y + (mvy >> 1))*pitch];
dst = current;
-
+
s->dsp.put_pixels_tab[1][((mvy & 1) << 1) | (mvx & 1)](dst,src,pitch,8);
/* select next block */
}
static int svq1_decode_delta_block (MpegEncContext *s, GetBitContext *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion, int x, int y) {
+ uint8_t *current, uint8_t *previous, int pitch,
+ svq1_pmv_t *motion, int x, int y) {
uint32_t block_type;
- int result = 0;
+ int result = 0;
/* get block type */
block_type = get_vlc2(bitbuf, svq1_block_type.table, 2, 2);
/* reset motion vectors */
if (block_type == SVQ1_BLOCK_SKIP || block_type == SVQ1_BLOCK_INTRA) {
- motion[0].x =
- motion[0].y =
+ motion[0].x =
+ motion[0].y =
motion[(x / 8) + 2].x =
motion[(x / 8) + 2].y =
motion[(x / 8) + 3].x =
return value;
}
+#if 0 /* unused, remove? */
static uint16_t svq1_component_checksum (uint16_t *pixels, int pitch,
int width, int height, int value) {
int x, y;
return value;
}
+#endif
static void svq1_parse_string (GetBitContext *bitbuf, uint8_t *out) {
uint8_t seed;
/* frame type */
s->pict_type= get_bits (bitbuf, 2)+1;
- if(s->pict_type==4)
+ if(s->pict_type==4)
return -1;
-
+
if (s->pict_type == I_TYPE) {
/* unknown fields */
skip_bits (bitbuf, 8);
}
}
-
+
return 0;
}
-static int svq1_decode_frame(AVCodecContext *avctx,
+static int svq1_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
MpegEncContext *s=avctx->priv_data;
- uint8_t *current, *previous;
- int result, i, x, y, width, height;
- AVFrame *pict = data;
+ uint8_t *current, *previous;
+ int result, i, x, y, width, height;
+ AVFrame *pict = data;
/* initialize bit buffer */
init_get_bits(&s->gb,buf,buf_size*8);
#endif
return result;
}
-
+
//FIXME this avoids some confusion for "B frames" without 2 references
//this should be removed after libavcodec can handle more flexible picture types & ordering
if(s->pict_type==B_TYPE && s->last_picture_ptr==NULL) return buf_size;
-
+
if(avctx->hurry_up && s->pict_type==B_TYPE) return buf_size;
+ if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==B_TYPE)
+ ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=I_TYPE)
+ || avctx->skip_frame >= AVDISCARD_ALL)
+ return buf_size;
if(MPV_frame_start(s, avctx) < 0)
return -1;
if (s->pict_type == I_TYPE) {
/* keyframe */
for (y=0; y < height; y+=16) {
- for (x=0; x < width; x+=16) {
- result = svq1_decode_block_intra (&s->gb, ¤t[x], linesize);
- if (result != 0)
- {
+ for (x=0; x < width; x+=16) {
+ result = svq1_decode_block_intra (&s->gb, ¤t[x], linesize);
+ if (result != 0)
+ {
//#ifdef DEBUG_SVQ1
- av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_block %i (keyframe)\n",result);
+ av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_block %i (keyframe)\n",result);
//#endif
- return result;
- }
- }
- current += 16*linesize;
+ return result;
+ }
+ }
+ current += 16*linesize;
}
} else {
svq1_pmv_t pmv[width/8+3];
memset (pmv, 0, ((width / 8) + 3) * sizeof(svq1_pmv_t));
for (y=0; y < height; y+=16) {
- for (x=0; x < width; x+=16) {
- result = svq1_decode_delta_block (s, &s->gb, ¤t[x], previous,
- linesize, pmv, x, y);
- if (result != 0)
- {
+ for (x=0; x < width; x+=16) {
+ result = svq1_decode_delta_block (s, &s->gb, ¤t[x], previous,
+ linesize, pmv, x, y);
+ if (result != 0)
+ {
#ifdef DEBUG_SVQ1
av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_delta_block %i\n",result);
#endif
- return result;
- }
- }
+ return result;
+ }
+ }
- pmv[0].x =
- pmv[0].y = 0;
+ pmv[0].x =
+ pmv[0].y = 0;
- current += 16*linesize;
+ current += 16*linesize;
}
}
}
-
+
*pict = *(AVFrame*)&s->current_picture;
MPV_frame_end(s);
-
+
*data_size=sizeof(AVFrame);
return buf_size;
}
init_vlc(&svq1_block_type, 2, 4,
&svq1_block_type_vlc[0][1], 2, 1,
- &svq1_block_type_vlc[0][0], 2, 1);
+ &svq1_block_type_vlc[0][0], 2, 1, 1);
- init_vlc(&svq1_motion_component, 7, 65,
- &svq1_motion_component_vlc[0][1], 4, 2,
- &svq1_motion_component_vlc[0][0], 4, 2);
+ init_vlc(&svq1_motion_component, 7, 33,
+ &mvtab[0][1], 2, 1,
+ &mvtab[0][0], 2, 1, 1);
for (i = 0; i < 6; i++) {
init_vlc(&svq1_intra_multistage[i], 3, 8,
&svq1_intra_multistage_vlc[i][0][1], 2, 1,
- &svq1_intra_multistage_vlc[i][0][0], 2, 1);
+ &svq1_intra_multistage_vlc[i][0][0], 2, 1, 1);
init_vlc(&svq1_inter_multistage[i], 3, 8,
&svq1_inter_multistage_vlc[i][0][1], 2, 1,
- &svq1_inter_multistage_vlc[i][0][0], 2, 1);
+ &svq1_inter_multistage_vlc[i][0][0], 2, 1, 1);
}
init_vlc(&svq1_intra_mean, 8, 256,
&svq1_intra_mean_vlc[0][1], 4, 2,
- &svq1_intra_mean_vlc[0][0], 4, 2);
+ &svq1_intra_mean_vlc[0][0], 4, 2, 1);
init_vlc(&svq1_inter_mean, 9, 512,
&svq1_inter_mean_vlc[0][1], 4, 2,
- &svq1_inter_mean_vlc[0][0], 4, 2);
+ &svq1_inter_mean_vlc[0][0], 4, 2, 1);
return 0;
}
static void svq1_write_header(SVQ1Context *s, int frame_type)
{
+ int i;
+
/* frame code */
put_bits(&s->pb, 22, 0x20);
/* output 5 unknown bits (2 + 2 + 1) */
put_bits(&s->pb, 5, 0);
- /* forget about matching up resolutions, just use the free-form
- * resolution code (7) for now */
- put_bits(&s->pb, 3, 7);
- put_bits(&s->pb, 12, s->frame_width);
- put_bits(&s->pb, 12, s->frame_height);
-
- }
-
- /* no checksum or extra data (next 2 bits get 0) */
- put_bits(&s->pb, 2, 0);
-}
-
-int level_sizes[6] = { 8, 16, 32, 64, 128, 256 };
-int level_log2_sizes[6] = { 3, 4, 5, 6, 7, 8 };
-
-#define IABS(x) ((x < 0) ? (-(x)) : x)
-
-
-
-//#define USE_MAD_ALGORITHM
-
-#ifdef USE_MAD_ALGORITHM
-
-#define QUALITY_THRESHOLD 100
-#define THRESHOLD_MULTIPLIER 0.6
-
-/* This function calculates vector differences using mean absolute
- * difference (MAD). */
-
-static int encode_vector(SVQ1Context *s, unsigned char *vector,
- unsigned int level, int threshold)
-{
- int i, j, k;
- int mean;
- signed short work_vector[256];
- int best_codebook;
- int best_score;
- int multistage_codebooks[6];
- int number_of_stages = 0;
- int8_t *current_codebook;
- int total_deviation;
- int ret;
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " ** recursive entry point: encoding level %d vector at threshold %d\n",
- level, threshold);
-#endif
- if (level > 5) {
- av_log(s->avctx, AV_LOG_INFO, " help! level %d > 5\n", level);
- return 0;
- }
-
-#ifdef DEBUG_SVQ1
-for (i = 0; i < level_sizes[level]; i++)
- av_log(s->avctx, AV_LOG_INFO, " %02X", vector[i]);
-av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- /* calculate the mean */
- mean = 0;
- for (i = 0; i < level_sizes[level]; i++)
- mean += vector[i];
- mean >>= level_log2_sizes[level];
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " vector mean = 0x%02X\n", mean);
-#endif
-
- /* remove the mean from the vector */
- total_deviation = 0;
- for (i = 0; i < level_sizes[level]; i++) {
- work_vector[i] = (signed short)vector[i] - mean;
- total_deviation += IABS(work_vector[i]);
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " %d", work_vector[i]);
-#endif
- }
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "\n total deviation = %d\n", total_deviation);
-#endif
-
- if (total_deviation < threshold) {
-
-#ifdef DEBUG_SVQ1
- av_log(s->avctx, AV_LOG_INFO, " mean-only encoding found for level %d vector, mean = %d\n",
- level, mean);
-#endif
-
- /* indicate that this is the end of the subdivisions */
- if (level > 0)
- put_bits(&s->pb, 1, 0);
-
- /* index 1 in the table indicates mean-only encoding */
- put_bits(&s->pb, svq1_intra_multistage_vlc[level][1][1],
- svq1_intra_multistage_vlc[level][1][0]);
- put_bits(&s->pb, svq1_intra_mean_vlc[mean][1],
- svq1_intra_mean_vlc[mean][0]);
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " mean-only L%d, VLC = (0x%X, %d), mean = %d (0x%X, %d)\n",
- level,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- mean,
- svq1_intra_mean_vlc[mean][0],
- svq1_intra_mean_vlc[mean][1]);
-#endif
-
- ret = 0;
-
- } else {
-
- if (level <= 3) {
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " multistage VQ search...\n");
-#endif
- /* conduct multistage VQ search, for each stage... */
- for (i = 0; i < 6; i++) {
-
- best_codebook = 0;
- best_score = 0x7FFFFFFF;
- /* for each codebook in stage */
- for (j = 0; j < 16; j++) {
-
- total_deviation = 0;
- current_codebook =
- &svq1_intra_codebooks[level]
- [i * level_sizes[level] * 16 + j * level_sizes[level]];
- /* calculate the total deviation for the vector */
- for (k = 0; k < level_sizes[level]; k++) {
- total_deviation +=
- IABS(work_vector[k] - current_codebook[k]);
- }
-
- /* lowest score so far? */
- if (total_deviation < best_score) {
- best_score = total_deviation;
- best_codebook = j;
- }
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " after %d, %d, best codebook is %d with a score of %d (score was %d)\n",
- i, j, best_codebook, best_score, total_deviation);
-#endif
- }
-
- /* apply the winning codebook to the work vector and check if
- * the vector meets the quality threshold */
- total_deviation = 0;
- current_codebook =
- &svq1_intra_codebooks[level]
- [i * level_sizes[level] * 16 + j * level_sizes[level]];
- multistage_codebooks[number_of_stages++] = best_codebook;
- for (j = 0; j < level_sizes[level]; j++) {
- work_vector[j] = work_vector[j] - current_codebook[j];
- total_deviation += IABS(work_vector[j]);
- }
-
- /* do not go forward with the rest of the search if an acceptable
- * codebook combination has been found */
- if (total_deviation < threshold)
- break;
+ for (i = 0; i < 7; i++)
+ {
+ if ((svq1_frame_size_table[i].width == s->frame_width) &&
+ (svq1_frame_size_table[i].height == s->frame_height))
+ {
+ put_bits(&s->pb, 3, i);
+ break;
}
}
- if ((total_deviation < threshold) || (level == 0)) {
-#ifdef DEBUG_SVQ1
- av_log(s->avctx, AV_LOG_INFO, " level %d VQ encoding found using mean %d and codebooks", level, mean);
- for (i = 0; i < number_of_stages; i++)
- av_log(s->avctx, AV_LOG_INFO, " %d", multistage_codebooks[i]);
- av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- /* indicate that this is the end of the subdivisions */
- if (level > 0)
- put_bits(&s->pb, 1, 0);
-
- /* output the encoding */
- put_bits(&s->pb,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0]);
- put_bits(&s->pb, svq1_intra_mean_vlc[mean][1],
- svq1_intra_mean_vlc[mean][0]);
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " L%d: multistage = %d (0x%X, %d), mean = %d (0x%X, %d), codebooks = ",
- level,
- number_of_stages,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- mean,
- svq1_intra_mean_vlc[mean][0],
- svq1_intra_mean_vlc[mean][1]);
-#endif
-
- for (i = 0; i < number_of_stages; i++)
-{
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "%d ", multistage_codebooks[i]);
-#endif
- put_bits(&s->pb, 4, multistage_codebooks[i]);
-}
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- ret = 0;
-
- } else {
-
- /* output a subdivision bit to the encoded stream and signal to
- * the calling function that this vector could not be
- * coded at the requested threshold and needs to be subdivided */
- put_bits(&s->pb, 1, 1);
- ret = 1;
+ if (i == 7)
+ {
+ put_bits(&s->pb, 3, 7);
+ put_bits(&s->pb, 12, s->frame_width);
+ put_bits(&s->pb, 12, s->frame_height);
}
}
- return ret;
+ /* no checksum or extra data (next 2 bits get 0) */
+ put_bits(&s->pb, 2, 0);
}
-#else
#define QUALITY_THRESHOLD 100
#define THRESHOLD_MULTIPLIER 0.6
-/* This function calculates vector differences using mean square
- * error (MSE). */
-
-static int encode_vector(SVQ1Context *s, unsigned char *vector,
- unsigned int level, int threshold)
-{
- int i, j, k;
- int mean;
- signed short work_vector[256];
- int best_codebook;
- int best_score;
- int multistage_codebooks[6];
- int number_of_stages = 0;
- int8_t *current_codebook;
- int mse;
- int diff;
- int ret;
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " ** recursive entry point: encoding level %d vector at threshold %d\n",
- level, threshold);
-#endif
- if (level > 5) {
- av_log(s->avctx, AV_LOG_INFO, " help! level %d > 5\n", level);
- return 0;
- }
-
-#ifdef DEBUG_SVQ1
-for (i = 0; i < level_sizes[level]; i++)
- av_log(s->avctx, AV_LOG_INFO, " %02X", vector[i]);
-av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- /* calculate the mean */
- mean = 0;
- for (i = 0; i < level_sizes[level]; i++)
- mean += vector[i];
- mean >>= level_log2_sizes[level];
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " vector mean = 0x%02X\n", mean);
-#endif
-
- /* remove the mean from the vector and compute the resulting MSE */
- mse = 0;
- for (i = 0; i < level_sizes[level]; i++) {
- work_vector[i] = (signed short)vector[i] - mean;
- mse += (work_vector[i] * work_vector[i]);
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " %d", work_vector[i]);
-#endif
- }
- mse >>= level_log2_sizes[level];
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "\n MSE = %d\n", mse);
-#endif
-
- if (mse < threshold) {
-
-#ifdef DEBUG_SVQ1
- av_log(s->avctx, AV_LOG_INFO, " mean-only encoding found for level %d vector, mean = %d\n",
- level, mean);
+#if defined(HAVE_ALTIVEC)
+#undef vector
#endif
- /* indicate that this is the end of the subdivisions */
- if (level > 0)
- put_bits(&s->pb, 1, 0);
-
- /* index 1 in the table indicates mean-only encoding */
- put_bits(&s->pb, svq1_intra_multistage_vlc[level][1][1],
- svq1_intra_multistage_vlc[level][1][0]);
- put_bits(&s->pb, svq1_intra_mean_vlc[mean][1],
- svq1_intra_mean_vlc[mean][0]);
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " mean-only L%d, VLC = (0x%X, %d), mean = %d (0x%X, %d)\n",
- level,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- mean,
- svq1_intra_mean_vlc[mean][0],
- svq1_intra_mean_vlc[mean][1]);
-#endif
-
- ret = 0;
-
- } else {
-
- if (level <= 3) {
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " multistage VQ search...\n");
-#endif
- /* conduct multistage VQ search, for each stage... */
- for (i = 0; i < 6; i++) {
-
- best_codebook = 0;
- best_score = 0x7FFFFFFF;
- /* for each codebook in stage */
- for (j = 0; j < 16; j++) {
-
- mse = 0;
- current_codebook =
- &svq1_intra_codebooks[level]
- [i * level_sizes[level] * 16 + j * level_sizes[level]];
- /* calculate the MSE for this vector */
- for (k = 0; k < level_sizes[level]; k++) {
- diff = work_vector[k] - current_codebook[k];
- mse += (diff * diff);
- }
- mse >>= level_log2_sizes[level];
-
- /* lowest score so far? */
- if (mse < best_score) {
- best_score = mse;
- best_codebook = j;
- }
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " after %d, %d, best codebook is %d with a score of %d (score was %d)\n",
- i, j, best_codebook, best_score, mse);
-#endif
- }
-
- /* apply the winning codebook to the work vector and check if
- * the vector meets the quality threshold */
- mse = 0;
- current_codebook =
- &svq1_intra_codebooks[level]
- [i * level_sizes[level] * 16 + j * level_sizes[level]];
- multistage_codebooks[number_of_stages++] = best_codebook;
- for (j = 0; j < level_sizes[level]; j++) {
- work_vector[j] = work_vector[j] - current_codebook[j];
- mse += (work_vector[j] * work_vector[j]);
- }
- mse >>= level_log2_sizes[level];
-
- /* do not go forward with the rest of the search if an acceptable
- * codebook combination has been found */
- if (mse < threshold)
- break;
- }
- }
-
- if ((mse < threshold) || (level == 0)) {
-#ifdef DEBUG_SVQ1
- av_log(s->avctx, AV_LOG_INFO, " level %d VQ encoding found using mean %d and codebooks", level, mean);
- for (i = 0; i < number_of_stages; i++)
- av_log(s->avctx, AV_LOG_INFO, " %d", multistage_codebooks[i]);
- av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- /* indicate that this is the end of the subdivisions */
- if (level > 0)
- put_bits(&s->pb, 1, 0);
-
- /* output the encoding */
- put_bits(&s->pb,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0]);
- put_bits(&s->pb, svq1_intra_mean_vlc[mean][1],
- svq1_intra_mean_vlc[mean][0]);
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " L%d: multistage = %d (0x%X, %d), mean = %d (0x%X, %d), codebooks = ",
- level,
- number_of_stages,
- svq1_intra_multistage_vlc[level][1 + number_of_stages][0],
- svq1_intra_multistage_vlc[level][1 + number_of_stages][1],
- mean,
- svq1_intra_mean_vlc[mean][0],
- svq1_intra_mean_vlc[mean][1]);
-#endif
-
- for (i = 0; i < number_of_stages; i++)
-{
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "%d ", multistage_codebooks[i]);
-#endif
- put_bits(&s->pb, 4, multistage_codebooks[i]);
-}
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "\n");
-#endif
-
- ret = 0;
-
- } else {
-
- /* output a subdivision bit to the encoded stream and signal to
- * the calling function that this vector could not be
- * coded at the requested threshold and needs to be subdivided */
- put_bits(&s->pb, 1, 1);
- ret = 1;
- }
- }
-
- return ret;
-}
-#endif
-
-static int encode_block(SVQ1Context *s, uint8_t *src, int stride, int level, int threshold, int lambda){
+static int encode_block(SVQ1Context *s, uint8_t *src, uint8_t *ref, uint8_t *decoded, int stride, int level, int threshold, int lambda, int intra){
int count, y, x, i, j, split, best_mean, best_score, best_count;
int best_vector[6];
int block_sum[7]= {0, 0, 0, 0, 0, 0};
int h= 2<<((level+1)>>1);
int size=w*h;
int16_t block[7][256];
-
+ const int8_t *codebook_sum, *codebook;
+ const uint16_t (*mean_vlc)[2];
+ const uint8_t (*multistage_vlc)[2];
+
best_score=0;
- for(y=0; y<h; y++){
- for(x=0; x<w; x++){
- int v= src[x + y*stride];
- block[0][x + w*y]= v;
- best_score += v*v;
- block_sum[0] += v;
+ //FIXME optimize, this doenst need to be done multiple times
+ if(intra){
+ codebook_sum= svq1_intra_codebook_sum[level];
+ codebook= svq1_intra_codebooks[level];
+ mean_vlc= svq1_intra_mean_vlc;
+ multistage_vlc= svq1_intra_multistage_vlc[level];
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int v= src[x + y*stride];
+ block[0][x + w*y]= v;
+ best_score += v*v;
+ block_sum[0] += v;
+ }
+ }
+ }else{
+ codebook_sum= svq1_inter_codebook_sum[level];
+ codebook= svq1_inter_codebooks[level];
+ mean_vlc= svq1_inter_mean_vlc + 256;
+ multistage_vlc= svq1_inter_multistage_vlc[level];
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ int v= src[x + y*stride] - ref[x + y*stride];
+ block[0][x + w*y]= v;
+ best_score += v*v;
+ block_sum[0] += v;
+ }
}
}
if(level<4){
for(count=1; count<7; count++){
int best_vector_score= INT_MAX;
- int best_vector_sum=-99, best_vector_mean=-99;
+ int best_vector_sum=-999, best_vector_mean=-999;
const int stage= count-1;
- int8_t *vector;
-
+ const int8_t *vector;
+
for(i=0; i<16; i++){
- int sum=0;
+ int sum= codebook_sum[stage*16 + i];
int sqr=0;
int diff, mean, score;
-
- vector = svq1_intra_codebooks[level] + stage*size*16 + i*size;
-
+
+ vector = codebook + stage*size*16 + i*size;
+
for(j=0; j<size; j++){
int v= vector[j];
- sum += v;
sqr += (v - block[stage][j])*(v - block[stage][j]);
}
diff= block_sum[stage] - sum;
mean= (diff + (size>>1)) >> (level+3);
- assert(mean >-50 && mean<300);
- mean= clip(mean, 0, 255);
+ assert(mean >-300 && mean<300);
+ if(intra) mean= clip(mean, 0, 255);
+ else mean= clip(mean, -256, 255);
score= sqr - ((diff*(int64_t)diff)>>(level+3)); //FIXME 64bit slooow
if(score < best_vector_score){
best_vector_score= score;
best_vector_mean= mean;
}
}
- assert(best_vector_mean != -99);
- vector= svq1_intra_codebooks[level] + stage*size*16 + best_vector[stage]*size;
+ assert(best_vector_mean != -999);
+ vector= codebook + stage*size*16 + best_vector[stage]*size;
for(j=0; j<size; j++){
block[stage+1][j] = block[stage][j] - vector[j];
}
block_sum[stage+1]= block_sum[stage] - best_vector_sum;
- best_vector_score +=
+ best_vector_score +=
lambda*(+ 1 + 4*count
- + svq1_intra_multistage_vlc[level][1+count][1]
- + svq1_intra_mean_vlc[best_vector_mean][1]);
-
+ + multistage_vlc[1+count][1]
+ + mean_vlc[best_vector_mean][1]);
+
if(best_vector_score < best_score){
best_score= best_vector_score;
best_count= count;
}
}
}
-
+
split=0;
if(best_score > threshold && level){
int score=0;
for(i=level-1; i>=0; i--){
backup[i]= s->reorder_pb[i];
}
- score += encode_block(s, src , stride, level-1, threshold>>1, lambda);
- score += encode_block(s, src + offset, stride, level-1, threshold>>1, lambda);
+ score += encode_block(s, src , ref , decoded , stride, level-1, threshold>>1, lambda, intra);
+ score += encode_block(s, src + offset, ref + offset, decoded + offset, stride, level-1, threshold>>1, lambda, intra);
score += lambda;
-
+
if(score < best_score){
best_score= score;
split=1;
put_bits(&s->reorder_pb[level], 1, split);
if(!split){
- assert(best_mean >= 0 && best_mean<256);
+ assert((best_mean >= 0 && best_mean<256) || !intra);
+ assert(best_mean >= -256 && best_mean<256);
assert(best_count >=0 && best_count<7);
assert(level<4 || best_count==0);
-
+
/* output the encoding */
- put_bits(&s->reorder_pb[level],
- svq1_intra_multistage_vlc[level][1 + best_count][1],
- svq1_intra_multistage_vlc[level][1 + best_count][0]);
- put_bits(&s->reorder_pb[level], svq1_intra_mean_vlc[best_mean][1],
- svq1_intra_mean_vlc[best_mean][0]);
+ put_bits(&s->reorder_pb[level],
+ multistage_vlc[1 + best_count][1],
+ multistage_vlc[1 + best_count][0]);
+ put_bits(&s->reorder_pb[level], mean_vlc[best_mean][1],
+ mean_vlc[best_mean][0]);
for (i = 0; i < best_count; i++){
assert(best_vector[i]>=0 && best_vector[i]<16);
put_bits(&s->reorder_pb[level], 4, best_vector[i]);
}
+
+ for(y=0; y<h; y++){
+ for(x=0; x<w; x++){
+ decoded[x + y*stride]= src[x + y*stride] - block[best_count][x + w*y] + best_mean;
+ }
+ }
}
return best_score;
}
-static void svq1_encode_plane(SVQ1Context *s, unsigned char *plane,
- int width, int height, int stride)
+#ifdef CONFIG_ENCODERS
+
+static int svq1_encode_plane(SVQ1Context *s, int plane, unsigned char *src_plane, unsigned char *ref_plane, unsigned char *decoded_plane,
+ int width, int height, int src_stride, int stride)
{
- unsigned char buffer0[256];
- unsigned char buffer1[256];
- int current_buffer;
- unsigned char *vector;
- unsigned char *subvectors;
- int vector_count;
- int subvector_count;
int x, y;
- int i, j;
+ int i;
int block_width, block_height;
- int left_edge;
int level;
int threshold[6];
-
-static int frame = 0;
-
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "********* frame #%d\n", frame++);
-#endif
+ const int lambda= (s->picture.quality*s->picture.quality) >> (2*FF_LAMBDA_SHIFT);
/* figure out the acceptable level thresholds in advance */
threshold[5] = QUALITY_THRESHOLD;
block_width = (width + 15) / 16;
block_height = (height + 15) / 16;
- for (y = 0; y < block_height; y++) {
+ if(s->picture.pict_type == P_TYPE){
+ s->m.avctx= s->avctx;
+ s->m.current_picture_ptr= &s->m.current_picture;
+ s->m.last_picture_ptr = &s->m.last_picture;
+ s->m.last_picture.data[0]= ref_plane;
+ s->m.linesize=
+ s->m.last_picture.linesize[0]=
+ s->m.new_picture.linesize[0]=
+ s->m.current_picture.linesize[0]= stride;
+ s->m.width= width;
+ s->m.height= height;
+ s->m.mb_width= block_width;
+ s->m.mb_height= block_height;
+ s->m.mb_stride= s->m.mb_width+1;
+ s->m.b8_stride= 2*s->m.mb_width+1;
+ s->m.f_code=1;
+ s->m.pict_type= s->picture.pict_type;
+ s->m.me_method= s->avctx->me_method;
+ s->m.me.scene_change_score=0;
+ s->m.flags= s->avctx->flags;
+// s->m.out_format = FMT_H263;
+// s->m.unrestricted_mv= 1;
+
+ s->m.lambda= s->picture.quality;
+ s->m.qscale= (s->m.lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
+ s->m.lambda2= (s->m.lambda*s->m.lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
+
+ if(!s->motion_val8[plane]){
+ s->motion_val8 [plane]= av_mallocz((s->m.b8_stride*block_height*2 + 2)*2*sizeof(int16_t));
+ s->motion_val16[plane]= av_mallocz((s->m.mb_stride*(block_height + 2) + 1)*2*sizeof(int16_t));
+ }
- for (x = 0; x < block_width; x++) {
- uint8_t reorder_buffer[6][7*32];
+ s->m.mb_type= s->mb_type;
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, "* level 5 vector @ %d, %d:\n", x * 16, y * 16);
-#endif
+ //dummies, to avoid segfaults
+ s->m.current_picture.mb_mean= (uint8_t *)s->dummy;
+ s->m.current_picture.mb_var= (uint16_t*)s->dummy;
+ s->m.current_picture.mc_mb_var= (uint16_t*)s->dummy;
+ s->m.current_picture.mb_type= s->dummy;
- /* copy the block into the current work buffer */
- left_edge = (y * 16 * stride) + (x * 16);
-
- for(i=0; i<6; i++){
- init_put_bits(&s->reorder_pb[i], reorder_buffer[i], 7*32);
- }
- encode_block(s, &plane[left_edge], stride, 5, 256, (s->picture.quality*s->picture.quality) >> (2*FF_LAMBDA_SHIFT));
- for(i=5; i>=0; i--){
- int count= put_bits_count(&s->reorder_pb[i]);
-
- flush_put_bits(&s->reorder_pb[i]);
- ff_copy_bits(&s->pb, s->reorder_pb[i].buf, count);
- }
-
-#if 0
- for (i = 0; i < 256; i += 16) {
- memcpy(&buffer0[i], &plane[left_edge], 16);
- left_edge += stride;
- }
- current_buffer = 1; /* this will toggle to 0 immediately */
-
- /* perform a breadth-first tree encoding for each vector level */
- subvector_count = 1; /* one subvector at level 5 */
- for (level = 5; level >= 0; level--) {
-
- vector_count = subvector_count;
- subvector_count = 0;
-
- if (current_buffer == 0) {
- current_buffer = 1;
- vector = buffer1;
- subvectors = buffer0;
- } else {
- current_buffer = 0;
- vector = buffer0;
- subvectors = buffer1;
- }
+ s->m.current_picture.motion_val[0]= s->motion_val8[plane] + 2;
+ s->m.p_mv_table= s->motion_val16[plane] + s->m.mb_stride + 1;
+ s->m.dsp= s->dsp; //move
+ ff_init_me(&s->m);
- /* iterate through each vector in the list */
- for (i = 0; i < vector_count; i++) {
+ s->m.me.dia_size= s->avctx->dia_size;
+ s->m.first_slice_line=1;
+ for (y = 0; y < block_height; y++) {
+ uint8_t src[stride*16];
- if (encode_vector(s, vector, level, threshold[level])) {
+ s->m.new_picture.data[0]= src - y*16*stride; //ugly
+ s->m.mb_y= y;
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " split to level %d\n", level - 1);
-#endif
- /* subdivide into 2 subvectors for later processing */
- subvector_count += 2;
-
- if (level - 1 == 3) {
- /* subdivide 16x8 -> 2 8x8 */
- for (j = 0; j < 8; j++) {
- /* left half */
- memcpy(subvectors + j * 8, vector + j * 16, 8);
- /* right half */
- memcpy(subvectors + 64 + j * 8,
- vector + 8 + j * 16, 8);
- }
- subvectors += 128;
- } else if (level - 1 == 1) {
- /* subdivide 8x4 -> 2 4x4 */
- for (j = 0; j < 4; j++) {
- /* left half */
- memcpy(subvectors + j * 4, vector + j * 8, 4);
- /* right half */
- memcpy(subvectors + 16 + j * 4,
- vector + 4 + j * 8, 4);
- }
- subvectors += 32;
- } else {
- /* first half */
- memcpy(subvectors, vector, level_sizes[level - 1]);
- subvectors += level_sizes[level - 1];
- /* second half */
- memcpy(subvectors, vector + level_sizes[level - 1],
- level_sizes[level - 1]);
- subvectors += level_sizes[level - 1];
- }
- }
-
- vector += level_sizes[level];
- }
+ for(i=0; i<16 && i + 16*y<height; i++){
+ memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width);
+ for(x=width; x<16*block_width; x++)
+ src[i*stride+x]= src[i*stride+x-1];
+ }
+ for(; i<16 && i + 16*y<16*block_height; i++)
+ memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width);
+
+ for (x = 0; x < block_width; x++) {
+ s->m.mb_x= x;
+ ff_init_block_index(&s->m);
+ ff_update_block_index(&s->m);
- /* if there are no more subvectors, break early */
- if (!subvector_count)
- break;
+ ff_estimate_p_frame_motion(&s->m, x, y);
}
-#endif
+ s->m.first_slice_line=0;
}
+
+ ff_fix_long_p_mvs(&s->m);
+ ff_fix_long_mvs(&s->m, NULL, 0, s->m.p_mv_table, s->m.f_code, CANDIDATE_MB_TYPE_INTER, 0);
}
-}
-/* output a plane with a constant mean value; good for debugging and for
- * greyscale encoding but only valid for intra frames */
-static void svq1_output_intra_constant_mean(SVQ1Context *s, int block_width,
- int block_height, unsigned char mean)
-{
- int i;
+ s->m.first_slice_line=1;
+ for (y = 0; y < block_height; y++) {
+ uint8_t src[stride*16];
- /* for each level 5 vector, output the specified mean value */
- for (i = 0; i < block_width * block_height; i++) {
+ for(i=0; i<16 && i + 16*y<height; i++){
+ memcpy(&src[i*stride], &src_plane[(i+16*y)*src_stride], width);
+ for(x=width; x<16*block_width; x++)
+ src[i*stride+x]= src[i*stride+x-1];
+ }
+ for(; i<16 && i + 16*y<16*block_height; i++)
+ memcpy(&src[i*stride], &src[(i-1)*stride], 16*block_width);
- /* output a 0 before each vector indicating no subdivision */
- put_bits(&s->pb, 1, 0);
+ s->m.mb_y= y;
+ for (x = 0; x < block_width; x++) {
+ uint8_t reorder_buffer[3][6][7*32];
+ int count[3][6];
+ int offset = y * 16 * stride + x * 16;
+ uint8_t *decoded= decoded_plane + offset;
+ uint8_t *ref= ref_plane + offset;
+ int score[4]={0,0,0,0}, best;
+ uint8_t temp[16*stride];
+
+ if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 3000){ //FIXME check size
+ av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+ return -1;
+ }
- /* output a 0 indicating mean-only encoding; use index 1 as that
- * maps to code 0 */
- put_bits(&s->pb, svq1_intra_multistage_vlc[5][1][1],
- svq1_intra_multistage_vlc[5][1][0]);
+ s->m.mb_x= x;
+ ff_init_block_index(&s->m);
+ ff_update_block_index(&s->m);
- /* output a constant mean */
- put_bits(&s->pb, svq1_intra_mean_vlc[mean][1],
- svq1_intra_mean_vlc[mean][0]);
-#ifdef DEBUG_SVQ1
-av_log(s->avctx, AV_LOG_INFO, " const L5 %d/%d: multistage = 0 (0x%X, %d), mean = %d (0x%X, %d)\n",
- i, block_width * block_height,
- svq1_intra_multistage_vlc[5][1][0],
- svq1_intra_multistage_vlc[5][1][1],
- mean,
- svq1_intra_mean_vlc[mean][0],
- svq1_intra_mean_vlc[mean][1]);
-#endif
+ if(s->picture.pict_type == I_TYPE || (s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTRA)){
+ for(i=0; i<6; i++){
+ init_put_bits(&s->reorder_pb[i], reorder_buffer[0][i], 7*32);
+ }
+ if(s->picture.pict_type == P_TYPE){
+ const uint8_t *vlc= svq1_block_type_vlc[SVQ1_BLOCK_INTRA];
+ put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
+ score[0]= vlc[1]*lambda;
+ }
+ score[0]+= encode_block(s, src+16*x, NULL, temp, stride, 5, 64, lambda, 1);
+ for(i=0; i<6; i++){
+ count[0][i]= put_bits_count(&s->reorder_pb[i]);
+ flush_put_bits(&s->reorder_pb[i]);
+ }
+ }else
+ score[0]= INT_MAX;
+
+ best=0;
+
+ if(s->picture.pict_type == P_TYPE){
+ const uint8_t *vlc= svq1_block_type_vlc[SVQ1_BLOCK_INTER];
+ int mx, my, pred_x, pred_y, dxy;
+ int16_t *motion_ptr;
+
+ motion_ptr= h263_pred_motion(&s->m, 0, 0, &pred_x, &pred_y);
+ if(s->m.mb_type[x + y*s->m.mb_stride]&CANDIDATE_MB_TYPE_INTER){
+ for(i=0; i<6; i++)
+ init_put_bits(&s->reorder_pb[i], reorder_buffer[1][i], 7*32);
+
+ put_bits(&s->reorder_pb[5], vlc[1], vlc[0]);
+
+ s->m.pb= s->reorder_pb[5];
+ mx= motion_ptr[0];
+ my= motion_ptr[1];
+ assert(mx>=-32 && mx<=31);
+ assert(my>=-32 && my<=31);
+ assert(pred_x>=-32 && pred_x<=31);
+ assert(pred_y>=-32 && pred_y<=31);
+ ff_h263_encode_motion(&s->m, mx - pred_x, 1);
+ ff_h263_encode_motion(&s->m, my - pred_y, 1);
+ s->reorder_pb[5]= s->m.pb;
+ score[1] += lambda*put_bits_count(&s->reorder_pb[5]);
+
+ dxy= (mx&1) + 2*(my&1);
+
+ s->dsp.put_pixels_tab[0][dxy](temp+16, ref + (mx>>1) + stride*(my>>1), stride, 16);
+
+ score[1]+= encode_block(s, src+16*x, temp+16, decoded, stride, 5, 64, lambda, 0);
+ best= score[1] <= score[0];
+
+ vlc= svq1_block_type_vlc[SVQ1_BLOCK_SKIP];
+ score[2]= s->dsp.sse[0](NULL, src+16*x, ref, stride, 16);
+ score[2]+= vlc[1]*lambda;
+ if(score[2] < score[best] && mx==0 && my==0){
+ best=2;
+ s->dsp.put_pixels_tab[0][0](decoded, ref, stride, 16);
+ for(i=0; i<6; i++){
+ count[2][i]=0;
+ }
+ put_bits(&s->pb, vlc[1], vlc[0]);
+ }
+ }
+
+ if(best==1){
+ for(i=0; i<6; i++){
+ count[1][i]= put_bits_count(&s->reorder_pb[i]);
+ flush_put_bits(&s->reorder_pb[i]);
+ }
+ }else{
+ motion_ptr[0 ] = motion_ptr[1 ]=
+ motion_ptr[2 ] = motion_ptr[3 ]=
+ motion_ptr[0+2*s->m.b8_stride] = motion_ptr[1+2*s->m.b8_stride]=
+ motion_ptr[2+2*s->m.b8_stride] = motion_ptr[3+2*s->m.b8_stride]=0;
+ }
+ }
+
+ s->rd_total += score[best];
+
+ for(i=5; i>=0; i--){
+ ff_copy_bits(&s->pb, reorder_buffer[best][i], count[best][i]);
+ }
+ if(best==0){
+ s->dsp.put_pixels_tab[0][0](decoded, temp, stride, 16);
+ }
+ }
+ s->m.first_slice_line=0;
}
+ return 0;
}
static int svq1_encode_init(AVCodecContext *avctx)
{
SVQ1Context * const s = avctx->priv_data;
- int i;
- unsigned char least_bits_value = 0;
- int least_bits;
dsputil_init(&s->dsp, avctx);
avctx->coded_frame= (AVFrame*)&s->picture;
s->c_block_width = (s->frame_width / 4 + 15) / 16;
s->c_block_height = (s->frame_height / 4 + 15) / 16;
-av_log(s->avctx, AV_LOG_INFO, " Hey: %d x %d, %d x %d, %d x %d\n",
- s->frame_width, s->frame_height,
- s->y_block_width, s->y_block_height,
- s->c_block_width, s->c_block_height);
-
- /* allocate a plane for the U & V planes (color, or C, planes) and
- * initialize them to the value that is represented by the fewest bits
- * in the mean table; the reasoning behind this is that when the border
- * vectors are operated upon and possibly subdivided, the mean will be
- * removed resulting in a perfect deviation score of 0 and encoded with
- * the minimal possible bits */
- s->c_plane = av_malloc(s->c_block_width * s->c_block_height * 16 * 16);
- least_bits = 10000;
- for (i = 0; i < 256; i++)
- if (svq1_intra_mean_vlc[i][1] < least_bits) {
- least_bits = svq1_intra_mean_vlc[i][1];
- least_bits_value = i;
- }
- memset(s->c_plane, least_bits_value,
- s->c_block_width * s->c_block_height * 16 * 16);
+ s->avctx= avctx;
+ s->m.avctx= avctx;
+ s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t));
+ s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
+ s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t));
+ s->mb_type = av_mallocz((s->y_block_width+1)*s->y_block_height*sizeof(int16_t));
+ s->dummy = av_mallocz((s->y_block_width+1)*s->y_block_height*sizeof(int32_t));
+ h263_encode_init(&s->m); //mv_penalty
return 0;
}
-static int svq1_encode_frame(AVCodecContext *avctx, unsigned char *buf,
+static int svq1_encode_frame(AVCodecContext *avctx, unsigned char *buf,
int buf_size, void *data)
{
SVQ1Context * const s = avctx->priv_data;
AVFrame *pict = data;
AVFrame * const p= (AVFrame*)&s->picture;
+ AVFrame temp;
+ int i;
+
+ if(avctx->pix_fmt != PIX_FMT_YUV410P){
+ av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
+ return -1;
+ }
+
+ if(!s->current_picture.data[0]){
+ avctx->get_buffer(avctx, &s->current_picture);
+ avctx->get_buffer(avctx, &s->last_picture);
+ }
+
+ temp= s->current_picture;
+ s->current_picture= s->last_picture;
+ s->last_picture= temp;
init_put_bits(&s->pb, buf, buf_size);
*p = *pict;
- p->pict_type = I_TYPE;
- p->key_frame = 1;
+ p->pict_type = avctx->frame_number % avctx->gop_size ? P_TYPE : I_TYPE;
+ p->key_frame = p->pict_type == I_TYPE;
svq1_write_header(s, p->pict_type);
- svq1_encode_plane(s, s->picture.data[0], s->frame_width, s->frame_height,
- s->picture.linesize[0]);
-// if (avctx->flags & CODEC_FLAG_GRAY) {
-if (1) {
- svq1_output_intra_constant_mean(s, s->c_block_width * 2,
- s->c_block_height * 2, 128);
- } else {
- svq1_encode_plane(s, s->picture.data[1], s->frame_width / 4,
- s->frame_height / 4, s->picture.linesize[1]);
- svq1_encode_plane(s, s->picture.data[2], s->frame_width / 4,
- s->frame_height / 4, s->picture.linesize[2]);
+ for(i=0; i<3; i++){
+ if(svq1_encode_plane(s, i,
+ s->picture.data[i], s->last_picture.data[i], s->current_picture.data[i],
+ s->frame_width / (i?4:1), s->frame_height / (i?4:1),
+ s->picture.linesize[i], s->current_picture.linesize[i]) < 0)
+ return -1;
}
// align_put_bits(&s->pb);
while(put_bits_count(&s->pb) & 31)
put_bits(&s->pb, 1, 0);
+ flush_put_bits(&s->pb);
+
return (put_bits_count(&s->pb) / 8);
}
static int svq1_encode_end(AVCodecContext *avctx)
{
SVQ1Context * const s = avctx->priv_data;
+ int i;
+
+ av_log(avctx, AV_LOG_DEBUG, "RD: %f\n", s->rd_total/(double)(avctx->width*avctx->height*avctx->frame_number));
- av_free(s->c_plane);
+ av_freep(&s->m.me.scratchpad);
+ av_freep(&s->m.me.map);
+ av_freep(&s->m.me.score_map);
+ av_freep(&s->mb_type);
+ av_freep(&s->dummy);
+
+ for(i=0; i<3; i++){
+ av_freep(&s->motion_val8[i]);
+ av_freep(&s->motion_val16[i]);
+ }
return 0;
}
+#endif //CONFIG_ENCODERS
+
AVCodec svq1_decoder = {
"svq1",
CODEC_TYPE_VIDEO,
svq1_decode_frame,
CODEC_CAP_DR1,
.flush= ff_mpeg_flush,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1},
};
#ifdef CONFIG_ENCODERS
svq1_encode_init,
svq1_encode_frame,
svq1_encode_end,
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1},
};
#endif //CONFIG_ENCODERS
projects / ffmpeg / blobdiff