diff options
| author | Aurelien Jacobs <aurel@gnuage.org> | 2007-07-06 15:19:35 +0000 |
|---|---|---|
| committer | Aurelien Jacobs <aurel@gnuage.org> | 2007-07-06 15:19:35 +0000 |
| commit | 5416616588e521311c863a89b69392ba9856b45e (patch) | |
| tree | 43a4e30e71afa371e0206fa7d1f61810a54b036e | |
| parent | b54bb84c3667763f438f6b66d22edf248975188d (diff) | |
| download | ffmpeg-5416616588e521311c863a89b69392ba9856b45e.tar.gz | |
split SVQ1 decoder and encoder in their own files
Originally committed as revision 9507 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/Makefile | 4 | ||||
| -rw-r--r-- | libavcodec/svq1.c | 1384 | ||||
| -rw-r--r-- | libavcodec/svq1.h | 61 | ||||
| -rw-r--r-- | libavcodec/svq1_cb.h | 68 | ||||
| -rw-r--r-- | libavcodec/svq1_vlc.h | 10 | ||||
| -rw-r--r-- | libavcodec/svq1dec.c | 829 | ||||
| -rw-r--r-- | libavcodec/svq1enc.c | 588 | ||||
| -rw-r--r-- | libavcodec/svq1enc_cb.h | 96 |
8 files changed, 1585 insertions, 1455 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 421eebe0de..2d793ea5d1 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -160,8 +160,8 @@ OBJS-$(CONFIG_SONIC_DECODER) += sonic.o golomb.o OBJS-$(CONFIG_SONIC_ENCODER) += sonic.o golomb.o OBJS-$(CONFIG_SONIC_LS_ENCODER) += sonic.o golomb.o OBJS-$(CONFIG_SP5X_DECODER) += sp5xdec.o mjpegdec.o mjpeg.o -OBJS-$(CONFIG_SVQ1_DECODER) += svq1.o -OBJS-$(CONFIG_SVQ1_ENCODER) += svq1.o +OBJS-$(CONFIG_SVQ1_DECODER) += svq1dec.o svq1.o +OBJS-$(CONFIG_SVQ1_ENCODER) += svq1enc.o svq1.o OBJS-$(CONFIG_SVQ3_DECODER) += h264.o cabac.o golomb.o OBJS-$(CONFIG_TARGA_DECODER) += targa.o OBJS-$(CONFIG_TARGA_ENCODER) += targaenc.o rle.o diff --git a/libavcodec/svq1.c b/libavcodec/svq1.c index 7d709f3801..8dd43ae1b8 100644 --- a/libavcodec/svq1.c +++ b/libavcodec/svq1.c @@ -32,1392 +32,12 @@ * http://www.pcisys.net/~melanson/codecs/ */ - -//#define DEBUG_SVQ1 -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <limits.h> - -#include "avcodec.h" -#include "dsputil.h" -#include "mpegvideo.h" -#include "bswap.h" - -#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_inter_multistage[6]; -static VLC svq1_intra_mean; -static VLC svq1_inter_mean; - -#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 independent 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 frame_height; - - /* Y plane block dimensions */ - int y_block_width; - int y_block_height; - - /* U & V plane (C planes) block dimensions */ - int c_block_width; - int c_block_height; - - 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; -} svq1_pmv_t; - +#include "svq1.h" #include "svq1_cb.h" #include "svq1_vlc.h" -static const uint16_t checksum_table[256] = { - 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, - 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, - 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, - 0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, - 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, - 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D, - 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4, - 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC, - 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, - 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, - 0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, - 0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, - 0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, - 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, - 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70, - 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78, - 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F, - 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, - 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, - 0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, - 0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, - 0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, - 0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C, - 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634, - 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB, - 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3, - 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, - 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, - 0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, - 0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, - 0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, - 0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 -}; - -static const uint8_t string_table[256] = { - 0x00, 0xD5, 0x7F, 0xAA, 0xFE, 0x2B, 0x81, 0x54, - 0x29, 0xFC, 0x56, 0x83, 0xD7, 0x02, 0xA8, 0x7D, - 0x52, 0x87, 0x2D, 0xF8, 0xAC, 0x79, 0xD3, 0x06, - 0x7B, 0xAE, 0x04, 0xD1, 0x85, 0x50, 0xFA, 0x2F, - 0xA4, 0x71, 0xDB, 0x0E, 0x5A, 0x8F, 0x25, 0xF0, - 0x8D, 0x58, 0xF2, 0x27, 0x73, 0xA6, 0x0C, 0xD9, - 0xF6, 0x23, 0x89, 0x5C, 0x08, 0xDD, 0x77, 0xA2, - 0xDF, 0x0A, 0xA0, 0x75, 0x21, 0xF4, 0x5E, 0x8B, - 0x9D, 0x48, 0xE2, 0x37, 0x63, 0xB6, 0x1C, 0xC9, - 0xB4, 0x61, 0xCB, 0x1E, 0x4A, 0x9F, 0x35, 0xE0, - 0xCF, 0x1A, 0xB0, 0x65, 0x31, 0xE4, 0x4E, 0x9B, - 0xE6, 0x33, 0x99, 0x4C, 0x18, 0xCD, 0x67, 0xB2, - 0x39, 0xEC, 0x46, 0x93, 0xC7, 0x12, 0xB8, 0x6D, - 0x10, 0xC5, 0x6F, 0xBA, 0xEE, 0x3B, 0x91, 0x44, - 0x6B, 0xBE, 0x14, 0xC1, 0x95, 0x40, 0xEA, 0x3F, - 0x42, 0x97, 0x3D, 0xE8, 0xBC, 0x69, 0xC3, 0x16, - 0xEF, 0x3A, 0x90, 0x45, 0x11, 0xC4, 0x6E, 0xBB, - 0xC6, 0x13, 0xB9, 0x6C, 0x38, 0xED, 0x47, 0x92, - 0xBD, 0x68, 0xC2, 0x17, 0x43, 0x96, 0x3C, 0xE9, - 0x94, 0x41, 0xEB, 0x3E, 0x6A, 0xBF, 0x15, 0xC0, - 0x4B, 0x9E, 0x34, 0xE1, 0xB5, 0x60, 0xCA, 0x1F, - 0x62, 0xB7, 0x1D, 0xC8, 0x9C, 0x49, 0xE3, 0x36, - 0x19, 0xCC, 0x66, 0xB3, 0xE7, 0x32, 0x98, 0x4D, - 0x30, 0xE5, 0x4F, 0x9A, 0xCE, 0x1B, 0xB1, 0x64, - 0x72, 0xA7, 0x0D, 0xD8, 0x8C, 0x59, 0xF3, 0x26, - 0x5B, 0x8E, 0x24, 0xF1, 0xA5, 0x70, 0xDA, 0x0F, - 0x20, 0xF5, 0x5F, 0x8A, 0xDE, 0x0B, 0xA1, 0x74, - 0x09, 0xDC, 0x76, 0xA3, 0xF7, 0x22, 0x88, 0x5D, - 0xD6, 0x03, 0xA9, 0x7C, 0x28, 0xFD, 0x57, 0x82, - 0xFF, 0x2A, 0x80, 0x55, 0x01, 0xD4, 0x7E, 0xAB, - 0x84, 0x51, 0xFB, 0x2E, 0x7A, 0xAF, 0x05, 0xD0, - 0xAD, 0x78, 0xD2, 0x07, 0x53, 0x86, 0x2C, 0xF9 -}; - -#define SVQ1_PROCESS_VECTOR()\ - for (; level > 0; i++) {\ - /* process next depth */\ - if (i == m) {\ - m = n;\ - if (--level == 0)\ - break;\ - }\ - /* divide block if next bit set */\ - if (get_bits (bitbuf, 1) == 0)\ - 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);\ - }\ -\ - /* 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);\ - } - -#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);\ - } - -#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);\ - } - -#define SVQ1_CALC_CODEBOOK_ENTRIES(cbook)\ - codebook = (const uint32_t *) cbook[level];\ - 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);\ - }\ - mean -= (stages * 128);\ - n4 = ((mean + (mean >> 31)) << 16) | (mean & 0xFFFF); - -static int svq1_decode_block_intra (GetBitContext *bitbuf, uint8_t *pixels, int pitch ) { - uint32_t bit_cache; - uint8_t *list[63]; - uint32_t *dst; - const uint32_t *codebook; - int entries[6]; - int i, j, m, n; - int mean, stages; - unsigned x, y, width, height, level; - uint32_t n1, n2, n3, n4; - - /* initialize list for breadth first processing of vectors */ - list[0] = pixels; - - /* recursively process vector */ - for (i=0, m=1, n=1, level=5; i < n; i++) { - SVQ1_PROCESS_VECTOR(); - - /* destination address and vector size */ - dst = (uint32_t *) list[i]; - width = 1 << ((4 + level) /2); - height = 1 << ((3 + level) /2); - - /* get number of stages (-1 skips vector, 0 for mean only) */ - 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 */ - } - - 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 */ - } - - 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); - } - } else { - SVQ1_CALC_CODEBOOK_ENTRIES(svq1_intra_codebooks); - SVQ1_DO_CODEBOOK_INTRA() - } - } - - return 0; -} - -static int svq1_decode_block_non_intra (GetBitContext *bitbuf, uint8_t *pixels, int pitch ) { - uint32_t bit_cache; - 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; - uint32_t n1, n2, n3, n4; - - /* initialize list for breadth first processing of vectors */ - list[0] = pixels; - - /* recursively process vector */ - for (i=0, m=1, n=1, level=5; i < n; i++) { - SVQ1_PROCESS_VECTOR(); - - /* destination address and vector size */ - dst = (uint32_t *) list[i]; - width = 1 << ((4 + level) /2); - height = 1 << ((3 + level) /2); - - /* 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 > 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 */ - } - - mean = get_vlc2(bitbuf, svq1_inter_mean.table, 9, 3) - 256; - - SVQ1_CALC_CODEBOOK_ENTRIES(svq1_inter_codebooks); - SVQ1_DO_CODEBOOK_NONINTRA() - } - return 0; -} - -static int svq1_decode_motion_vector (GetBitContext *bitbuf, svq1_pmv_t *mv, svq1_pmv_t **pmv) { - int diff; - int i; - - for (i=0; i < 2; i++) { - - /* get motion code */ - 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 + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26; - else - 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; - - src = &previous[x + y*pitch]; - dst = current; - - for (i=0; i < 16; i++) { - memcpy (dst, src, 16); - src += pitch; - dst += pitch; - } -} - -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 *src; - uint8_t *dst; - svq1_pmv_t mv; - svq1_pmv_t *pmv[3]; - int result; - - /* predict and decode motion vector */ - pmv[0] = &motion[0]; - if (y == 0) { - pmv[1] = - pmv[2] = pmv[0]; - } - else { - pmv[1] = &motion[(x / 8) + 2]; - pmv[2] = &motion[(x / 8) + 4]; - } - - result = svq1_decode_motion_vector (bitbuf, &mv, pmv); - - 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; - - if(y + (mv.y >> 1)<0) - mv.y= 0; - if(x + (mv.x >> 1)<0) - mv.x= 0; - -#if 0 - int w= (s->width+15)&~15; - int h= (s->height+15)&~15; - 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; - - s->dsp.put_pixels_tab[0][((mv.y & 1) << 1) | (mv.x & 1)](dst,src,pitch,16); - - return 0; -} - -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 *src; - uint8_t *dst; - svq1_pmv_t mv; - svq1_pmv_t *pmv[4]; - int i, result; - - /* predict and decode motion vector (0) */ - pmv[0] = &motion[0]; - if (y == 0) { - pmv[1] = - pmv[2] = pmv[0]; - } - else { - pmv[1] = &motion[(x / 8) + 2]; - pmv[2] = &motion[(x / 8) + 4]; - } - - result = svq1_decode_motion_vector (bitbuf, &mv, pmv); - - if (result != 0) - return result; - - /* predict and decode motion vector (1) */ - pmv[0] = &mv; - if (y == 0) { - pmv[1] = - pmv[2] = pmv[0]; - } - else { - pmv[1] = &motion[(x / 8) + 3]; - } - result = svq1_decode_motion_vector (bitbuf, &motion[0], pmv); - - if (result != 0) - return result; - - /* predict and decode motion vector (2) */ - pmv[1] = &motion[0]; - pmv[2] = &motion[(x / 8) + 1]; - - result = svq1_decode_motion_vector (bitbuf, &motion[(x / 8) + 2], pmv); - - if (result != 0) - return result; - - /* predict and decode motion vector (3) */ - pmv[2] = &motion[(x / 8) + 2]; - pmv[3] = &motion[(x / 8) + 3]; - - result = svq1_decode_motion_vector (bitbuf, pmv[3], pmv); - - if (result != 0) - return result; - - /* form predictions */ - for (i=0; i < 4; i++) { - int mvx= pmv[i]->x + (i&1)*16; - int mvy= pmv[i]->y + (i>>1)*16; - - ///XXX /FIXME clipping or padding? - if(y + (mvy >> 1)<0) - mvy= 0; - if(x + (mvx >> 1)<0) - mvx= 0; - -#if 0 - int w= (s->width+15)&~15; - int h= (s->height+15)&~15; - if(x + (mvx >> 1)<0 || y + (mvy >> 1)<0 || x + (mvx >> 1) + 8 > w || y + (mvy >> 1) + 8> h) - av_log(s->avctx, AV_LOG_INFO, "%d %d %d %d\n", x, y, x + (mvx >> 1), y + (mvy >> 1)); -#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 */ - if (i & 1) { - current += 8*(pitch - 1); - } else { - current += 8; - } - } - - return 0; -} - -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) { - uint32_t block_type; - 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[(x / 8) + 2].x = - motion[(x / 8) + 2].y = - motion[(x / 8) + 3].x = - motion[(x / 8) + 3].y = 0; - } - - switch (block_type) { - case SVQ1_BLOCK_SKIP: - svq1_skip_block (current, previous, pitch, x, y); - break; - - case SVQ1_BLOCK_INTER: - result = svq1_motion_inter_block (s, bitbuf, current, previous, pitch, motion, x, y); - - if (result != 0) - { -#ifdef DEBUG_SVQ1 - av_log(s->avctx, AV_LOG_INFO, "Error in svq1_motion_inter_block %i\n",result); -#endif - break; - } - result = svq1_decode_block_non_intra (bitbuf, current, pitch); - break; - - case SVQ1_BLOCK_INTER_4V: - result = svq1_motion_inter_4v_block (s, bitbuf, current, previous, pitch, motion, x, y); - - if (result != 0) - { -#ifdef DEBUG_SVQ1 - av_log(s->avctx, AV_LOG_INFO, "Error in svq1_motion_inter_4v_block %i\n",result); -#endif - break; - } - result = svq1_decode_block_non_intra (bitbuf, current, pitch); - break; - - case SVQ1_BLOCK_INTRA: - result = svq1_decode_block_intra (bitbuf, current, pitch); - break; - } - - return result; -} - /* standard video sizes */ -static struct { int width; int height; } svq1_frame_size_table[8] = { +svq1_frame_size_t ff_svq1_frame_size_table[8] = { { 160, 120 }, { 128, 96 }, { 176, 144 }, { 352, 288 }, { 704, 576 }, { 240, 180 }, { 320, 240 }, { -1, -1 } }; - -static uint16_t svq1_packet_checksum (uint8_t *data, int length, int value) { - int i; - - for (i=0; i < length; i++) { - value = checksum_table[data[i] ^ (value >> 8)] ^ ((value & 0xFF) << 8); - } - - 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; - - for (y=0; y < height; y++) { - for (x=0; x < width; x++) { - value = checksum_table[pixels[x] ^ (value >> 8)] ^ ((value & 0xFF) << 8); - } - - pixels += pitch; - } - - return value; -} -#endif - -#ifdef CONFIG_DECODERS -static void svq1_parse_string (GetBitContext *bitbuf, uint8_t *out) { - uint8_t seed; - int i; - - out[0] = get_bits (bitbuf, 8); - - seed = string_table[out[0]]; - - for (i=1; i <= out[0]; i++) { - out[i] = get_bits (bitbuf, 8) ^ seed; - seed = string_table[out[i] ^ seed]; - } -} - -static int svq1_decode_frame_header (GetBitContext *bitbuf,MpegEncContext *s) { - int frame_size_code; - int temporal_reference; - - temporal_reference = get_bits (bitbuf, 8); - - /* frame type */ - s->pict_type= get_bits (bitbuf, 2)+1; - if(s->pict_type==4) - return -1; - - if (s->pict_type == I_TYPE) { - - /* unknown fields */ - if (s->f_code == 0x50 || s->f_code == 0x60) { - int csum = get_bits (bitbuf, 16); - - csum = svq1_packet_checksum ((uint8_t *)bitbuf->buffer, bitbuf->size_in_bits>>3, csum); - -// av_log(s->avctx, AV_LOG_INFO, "%s checksum (%02x) for packet data\n", -// (csum == 0) ? "correct" : "incorrect", csum); - } - - if ((s->f_code ^ 0x10) >= 0x50) { - uint8_t msg[256]; - - svq1_parse_string (bitbuf, msg); - - av_log(s->avctx, AV_LOG_INFO, "embedded message: \"%s\"\n", (char *) msg); - } - - skip_bits (bitbuf, 2); - skip_bits (bitbuf, 2); - skip_bits1 (bitbuf); - - /* load frame size */ - frame_size_code = get_bits (bitbuf, 3); - - if (frame_size_code == 7) { - /* load width, height (12 bits each) */ - s->width = get_bits (bitbuf, 12); - s->height = get_bits (bitbuf, 12); - - if (!s->width || !s->height) - return -1; - } else { - /* get width, height from table */ - s->width = svq1_frame_size_table[frame_size_code].width; - s->height = svq1_frame_size_table[frame_size_code].height; - } - } - - /* unknown fields */ - if (get_bits (bitbuf, 1) == 1) { - skip_bits1 (bitbuf); /* use packet checksum if (1) */ - skip_bits1 (bitbuf); /* component checksums after image data if (1) */ - - if (get_bits (bitbuf, 2) != 0) - return -1; - } - - if (get_bits (bitbuf, 1) == 1) { - skip_bits1 (bitbuf); - skip_bits (bitbuf, 4); - skip_bits1 (bitbuf); - skip_bits (bitbuf, 2); - - while (get_bits (bitbuf, 1) == 1) { - skip_bits (bitbuf, 8); - } - } - - return 0; -} - -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; - - /* initialize bit buffer */ - init_get_bits(&s->gb,buf,buf_size*8); - - /* decode frame header */ - s->f_code = get_bits (&s->gb, 22); - - if ((s->f_code & ~0x70) || !(s->f_code & 0x60)) - return -1; - - /* swap some header bytes (why?) */ - if (s->f_code != 0x20) { - uint32_t *src = (uint32_t *) (buf + 4); - - for (i=0; i < 4; i++) { - src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i]; - } - } - - result = svq1_decode_frame_header (&s->gb, s); - - if (result != 0) - { -#ifdef DEBUG_SVQ1 - av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_frame_header %i\n",result); -#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; - - /* decode y, u and v components */ - for (i=0; i < 3; i++) { - int linesize; - if (i == 0) { - width = (s->width+15)&~15; - height = (s->height+15)&~15; - linesize= s->linesize; - } else { - if(s->flags&CODEC_FLAG_GRAY) break; - width = (s->width/4+15)&~15; - height = (s->height/4+15)&~15; - linesize= s->uvlinesize; - } - - current = s->current_picture.data[i]; - - if(s->pict_type==B_TYPE){ - previous = s->next_picture.data[i]; - }else{ - previous = s->last_picture.data[i]; - } - - 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) - { -//#ifdef DEBUG_SVQ1 - av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_block %i (keyframe)\n",result); -//#endif - return result; - } - } - current += 16*linesize; - } - } else { - svq1_pmv_t pmv[width/8+3]; - /* delta frame */ - 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) - { -#ifdef DEBUG_SVQ1 - av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_delta_block %i\n",result); -#endif - return result; - } - } - - pmv[0].x = - pmv[0].y = 0; - - current += 16*linesize; - } - } - } - - *pict = *(AVFrame*)&s->current_picture; - - - MPV_frame_end(s); - - *data_size=sizeof(AVFrame); - return buf_size; -} - -static int svq1_decode_init(AVCodecContext *avctx) -{ - MpegEncContext *s = avctx->priv_data; - int i; - - MPV_decode_defaults(s); - - s->avctx = avctx; - s->width = (avctx->width+3)&~3; - s->height = (avctx->height+3)&~3; - s->codec_id= avctx->codec->id; - avctx->pix_fmt = PIX_FMT_YUV410P; - avctx->has_b_frames= 1; // not true, but DP frames and these behave like unidirectional b frames - s->flags= avctx->flags; - if (MPV_common_init(s) < 0) return -1; - - init_vlc(&svq1_block_type, 2, 4, - &svq1_block_type_vlc[0][1], 2, 1, - &svq1_block_type_vlc[0][0], 2, 1, 1); - - 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, 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, 1); - } - - init_vlc(&svq1_intra_mean, 8, 256, - &svq1_intra_mean_vlc[0][1], 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, 1); - - return 0; -} - -static int svq1_decode_end(AVCodecContext *avctx) -{ - MpegEncContext *s = avctx->priv_data; - - MPV_common_end(s); - return 0; -} -#endif /* CONFIG_DECODERS */ - -#ifdef CONFIG_ENCODERS -static void svq1_write_header(SVQ1Context *s, int frame_type) -{ - int i; - - /* frame code */ - put_bits(&s->pb, 22, 0x20); - - /* temporal reference (sure hope this is a "don't care") */ - put_bits(&s->pb, 8, 0x00); - - /* frame type */ - put_bits(&s->pb, 2, frame_type - 1); - - if (frame_type == I_TYPE) { - - /* no checksum since frame code is 0x20 */ - - /* no embedded string either */ - - /* output 5 unknown bits (2 + 2 + 1) */ - put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */ - - 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 (i == 7) - { - 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); -} - - -#define QUALITY_THRESHOLD 100 -#define THRESHOLD_MULTIPLIER 0.6 - -#if defined(HAVE_ALTIVEC) -#undef vector -#endif - -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 w= 2<<((level+2)>>1); - 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; - //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; - } - } - } - - best_count=0; - best_score -= ((block_sum[0]*block_sum[0])>>(level+3)); - best_mean= (block_sum[0] + (size>>1)) >> (level+3); - - if(level<4){ - for(count=1; count<7; count++){ - int best_vector_score= INT_MAX; - int best_vector_sum=-999, best_vector_mean=-999; - const int stage= count-1; - const int8_t *vector; - - for(i=0; i<16; i++){ - int sum= codebook_sum[stage*16 + i]; - int sqr, diff, score; - - vector = codebook + stage*size*16 + i*size; - sqr = s->dsp.ssd_int8_vs_int16(vector, block[stage], size); - diff= block_sum[stage] - sum; - score= sqr - ((diff*(int64_t)diff)>>(level+3)); //FIXME 64bit slooow - if(score < best_vector_score){ - int mean= (diff + (size>>1)) >> (level+3); - assert(mean >-300 && mean<300); - mean= av_clip(mean, intra?0:-256, 255); - best_vector_score= score; - best_vector[stage]= i; - best_vector_sum= sum; - best_vector_mean= mean; - } - } - 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 += - lambda*(+ 1 + 4*count - + 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; - best_mean= best_vector_mean; - } - } - } - - split=0; - if(best_score > threshold && level){ - int score=0; - int offset= (level&1) ? stride*h/2 : w/2; - PutBitContext backup[6]; - - for(i=level-1; i>=0; i--){ - backup[i]= s->reorder_pb[i]; - } - 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; - }else{ - for(i=level-1; i>=0; i--){ - s->reorder_pb[i]= backup[i]; - } - } - } - if (level > 0) - put_bits(&s->reorder_pb[level], 1, split); - - if(!split){ - 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], - 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 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) -{ - int x, y; - int i; - int block_width, block_height; - int level; - int threshold[6]; - 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; - for (level = 4; level >= 0; level--) - threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER; - - block_width = (width + 15) / 16; - block_height = (height + 15) / 16; - - 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)); - } - - s->m.mb_type= s->mb_type; - - //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; - - 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); - - 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]; - - s->m.new_picture.data[0]= src - y*16*stride; //ugly - s->m.mb_y= y; - - 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); - - ff_estimate_p_frame_motion(&s->m, x, y); - } - 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); - } - - s->m.first_slice_line=1; - for (y = 0; y < block_height; y++) { - uint8_t src[stride*16]; - - 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); - - 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; - } - - s->m.mb_x= x; - ff_init_block_index(&s->m); - ff_update_block_index(&s->m); - - 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; - - dsputil_init(&s->dsp, avctx); - avctx->coded_frame= (AVFrame*)&s->picture; - - s->frame_width = avctx->width; - s->frame_height = avctx->height; - - s->y_block_width = (s->frame_width + 15) / 16; - s->y_block_height = (s->frame_height + 15) / 16; - - s->c_block_width = (s->frame_width / 4 + 15) / 16; - s->c_block_height = (s->frame_height / 4 + 15) / 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, - 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 = avctx->gop_size && 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); - 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_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 - -#ifdef CONFIG_DECODERS -AVCodec svq1_decoder = { - "svq1", - CODEC_TYPE_VIDEO, - CODEC_ID_SVQ1, - sizeof(MpegEncContext), - svq1_decode_init, - NULL, - svq1_decode_end, - svq1_decode_frame, - CODEC_CAP_DR1, - .flush= ff_mpeg_flush, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1}, -}; -#endif - -#ifdef CONFIG_ENCODERS - -AVCodec svq1_encoder = { - "svq1", - CODEC_TYPE_VIDEO, - CODEC_ID_SVQ1, - sizeof(SVQ1Context), - svq1_encode_init, - svq1_encode_frame, - svq1_encode_end, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1}, -}; - -#endif //CONFIG_ENCODERS diff --git a/libavcodec/svq1.h b/libavcodec/svq1.h new file mode 100644 index 0000000000..e0930bf9a8 --- /dev/null +++ b/libavcodec/svq1.h @@ -0,0 +1,61 @@ +/* + * SVQ1 decoder + * ported to MPlayer by Arpi <arpi@thot.banki.hu> + * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> + * + * Copyright (C) 2002 the xine project + * Copyright (C) 2002 the ffmpeg project + * + * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> + * + * This file is part of FFmpeg. + * + * FFmpeg 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 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file svq1.h + * Sorenson Vector Quantizer #1 (SVQ1) video codec. + * For more information of the SVQ1 algorithm, visit: + * http://www.pcisys.net/~melanson/codecs/ + */ + +#ifndef AVCODEC_SVQ1_H +#define AVCODEC_SVQ1_H + +#include <stdint.h> + +#define SVQ1_BLOCK_SKIP 0 +#define SVQ1_BLOCK_INTER 1 +#define SVQ1_BLOCK_INTER_4V 2 +#define SVQ1_BLOCK_INTRA 3 + +typedef struct { + int width; + int height; +} svq1_frame_size_t; + +extern const int8_t* const ff_svq1_inter_codebooks[6]; +extern const int8_t* const ff_svq1_intra_codebooks[6]; + +extern const uint8_t ff_svq1_block_type_vlc[4][2]; +extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]; +extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]; +extern const uint16_t ff_svq1_intra_mean_vlc[256][2]; +extern const uint16_t ff_svq1_inter_mean_vlc[512][2]; + +extern svq1_frame_size_t ff_svq1_frame_size_table[8]; + +#endif /* AVCODEC_SVQ1_H */ diff --git a/libavcodec/svq1_cb.h b/libavcodec/svq1_cb.h index bd2f98d10f..2df53af655 100644 --- a/libavcodec/svq1_cb.h +++ b/libavcodec/svq1_cb.h @@ -771,44 +771,12 @@ static const int8_t svq1_inter_codebook_8x8[6144] = { }; /* list of codebooks for inter-coded vectors */ -static const int8_t* const svq1_inter_codebooks[6] = { +const int8_t* const ff_svq1_inter_codebooks[6] = { svq1_inter_codebook_4x2, svq1_inter_codebook_4x4, svq1_inter_codebook_8x4, svq1_inter_codebook_8x8, NULL, NULL, }; -static const int8_t svq1_inter_codebook_sum[4][16*6] = { - { - -1, 1, -2, 0, 1, -1, -1, -1, -2, -1, 1, -1, -1, 0, -1, -1, - 0, -1, -1, -1, -1, 0, -1, 0, 0, 0, -3, 1, -1, 0, 1, -1, - 1, -1, 2, 2, 1, 1, 2, 0, 0, 0, -1, 1, 1, 0, 0, 0, - 1, -1, 0, 1, -1, 1, 1, 0, 1, 0, -1, 1, 1, 0, 0, 0, - -2, 0, 0, -2, 0, 0, -2, 0, -2, -1, -2, -1, 0, 0, -1, 0, - 1, 0, 1, -1, 2, 2, 1, 2, 2, 1, 0, 1, 1, 0, 1, 1, - },{ - -2, 1, -1, -1, 1, 0, 1, -1, -1, -1, 1, -1, 0, -1, 0, -1, - 0, 0, 0, -2, 0, 1, 0, -1, -1, 0, 2, -3, 1, -2, 3, -1, - 2, 0, 2, 1, 1, -1, 1, 1, 0, 0, 1, 1, 2, -2, 1, 0, - -2, -1, 2, -2, -2, 0, -3, 0, -1, 0, -1, 0, -1, 0, -2, -3, - 1, -2, -2, -1, 1, -1, -1, 1, -1, 1, 1, 0, -2, 0, 1, 1, - 1, 1, 2, 1, 0, 0, -1, 0, 0, 1, 0, 1, -1, 1, 0, 2, - },{ - 0, 0, 0, -3, 1, 1, 1, -3, 0, -1, 0, -3, 1, -3, 0, -2, - 1, 2, -1, -3, 0, -3, 1, -1, 0, -1, 0, 0, 1, 2, 1, 1, - -1, 2, -3, 3, 1, 0, -5, 1, 0, -1, -3, 1, 0, 2, 0, -3, - 4, 2, 0, -2, 1, -2, 3, -2, 1, 1, 0, -1, 2, 5, 3, 1, - -1, 0, 2, -3, -2, 0, 0, -2, 2, -3, -1, -1, 2, 1, 0, -2, - 3, -1, 1, -1, 2, 4, 0, 1, 0, 1, 0, -1, -3, -2, -1, 0, - },{ - 0, 2, -1, -1, 2, -4, -2, 3, 0, -1, -5, 1, 0, 1, 0, 6, - -2, 2, 0, 1, 1, -1, -1, -2, 1, -2, -1, 0, 2, -2, -2, -1, - -4, 2, -1, -3, -1, -2, 2, -1, 2, -1, 2, 0, 3, -3, -3, 0, - -3, 0, 0, -2, 4, -4, 0, -1, 4, 0, -2, -2, 3, -2, 0, 4, - 5, 0, 1, 0, -3, 3, 3, 2, 0, 0, 1, 2, -5, -2, -3, 0, - -3, 2, -2, 2, -2, 4, 7, -3, 4, 2, 3, 2, -1, 0, -3, 1, - } -}; - /* 6x16-entry codebook for intra-coded 4x2 vectors */ static const int8_t svq1_intra_codebook_4x2[768] = { 12, 13, 13, 11, -7,-10,-15,-17,-16,-15,-12,-10, 11, 15, 15, 12, @@ -1546,42 +1514,10 @@ static const int8_t svq1_intra_codebook_8x8[6144] = { }; /* list of codebooks for intra-coded vectors */ -static const int8_t* const svq1_intra_codebooks[6] = { +const int8_t* const ff_svq1_intra_codebooks[6] = { svq1_intra_codebook_4x2, svq1_intra_codebook_4x4, svq1_intra_codebook_8x4, svq1_intra_codebook_8x8, NULL, NULL, }; -static const int8_t svq1_intra_codebook_sum[4][16*6] = { - { - 0, 0, 0, -1, -1, -1, -1, -2, 0, -1, -1, 0, -1, 0, 1, 0, - 1, 0, -1, 1, 0, 0, -1, 1, -1, 0, 0, 0, -1, 1, 0, 0, - -1, 0, 0, 1, -1, 1, 0, -1, -1, 0, 1, 1, 0, 0, -1, 1, - 0, 1, 0, 0, 1, -1, 0, 0, 0, -1, 1, 0, 1, 0, -2, 1, - 0, -1, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 0, 0, - 0, 1, 1, 0, 0, -1, 0, 1, 0, 0, 0, 0, -1, 1, 1, -1, - },{ - -1, -2, 0, -1, 1, 0, -1, 0, -1, -4, -1, -2, -1, -2, 1, -2, - 0, 0, 4, -2, -1, 1, 1, 0, 2, 1, 1, 0, 2, 0, 0, 0, - 1, 1, 0, -1, -1, -1, 1, 0, -1, -3, -3, 1, -1, 1, -2, -1, - 1, -1, 0, 1, 2, 1, -1, -1, 1, 1, 1, 2, 1, 0, 1, -2, - -2, 0, -1, -2, -2, 0, -1, -1, -1, 0, 1, 0, -1, -1, 0, -1, - 0, 2, 1, 2, 2, 1, -1, 1, 0, 2, 0, -1, 1, 0, 0, 0, - },{ - -2, 0, -1, -1, 1, 1, -2, 0, -2, 0, 1, -2, -2, 1, -1, -1, - 3, -2, 0, -3, -4, -3, 2, 1, 0, 3, -2, 2, 3, 2, 2, -1, - -3, 1, 0, 1, 0, 0, 0, 1, -2, 1, -2, -2, -1, -2, -2, 2, - 0, -4, 0, 2, -1, 0, 2, 2, 2, 1, 0, -1, -1, 1, -3, 2, - 2, 1, 0, 3, 1, -1, 1, 3, 1, 0, 1, 1, 2, -1, 1, -1, - -2, -1, 0, -1, 1, -1, 1, -2, -2, -1, -1, -3, 1, -4, -3, 1, - },{ - -2, 0, -2, 3, -1, -1, 0, 2, 2, -1, -3, 2, 1, 0, -2, -1, - -3, -2, -2, 1, 2, -3, 0, 1, -5, -2, -3, 0, -2, -1, 2, 0, - -1, -1, 0, -2, 1, 3, -7, -2, -2, -1, 2, -1, 0, 3, 1, 3, - 1, 0, 0, 1, 2, 3, 1, 2, 0, -2, -2, 1, 1, 2, 2, 3, - 4, 1, -1, 2, -2, 4, 0, 0, 0, 4, 2, 0, -2, -2, 2, -4, - -1, 5, -2, -2, -3, 2, -3, -1, 3, -3, 0, 4, 3, 0, 1, -2, - } -}; - #endif // AVCODEC_SVQ1_CB_H diff --git a/libavcodec/svq1_vlc.h b/libavcodec/svq1_vlc.h index b7776e627e..3776158947 100644 --- a/libavcodec/svq1_vlc.h +++ b/libavcodec/svq1_vlc.h @@ -24,14 +24,14 @@ #include <stdint.h> /* values in this table range from 0..3; adjust retrieved value by +0 */ -static const uint8_t svq1_block_type_vlc[4][2] = { +const uint8_t ff_svq1_block_type_vlc[4][2] = { /* { code, length } */ { 0x1, 1 }, { 0x1, 2 }, { 0x1, 3 }, { 0x0, 3 } }; /* values in this table range from -1..6; adjust retrieved value by -1 */ -static const uint8_t svq1_intra_multistage_vlc[6][8][2] = { +const uint8_t ff_svq1_intra_multistage_vlc[6][8][2] = { /* { code, length } */ { { 0x1, 5 }, { 0x1, 1 }, { 0x3, 3 }, { 0x2, 3 }, @@ -55,7 +55,7 @@ static const uint8_t svq1_intra_multistage_vlc[6][8][2] = { }; /* values in this table range from -1..6; adjust retrieved value by -1 */ -static const uint8_t svq1_inter_multistage_vlc[6][8][2] = { +const uint8_t ff_svq1_inter_multistage_vlc[6][8][2] = { /* { code, length } */ { { 0x3, 2 }, { 0x5, 3 }, { 0x4, 3 }, { 0x3, 3 }, @@ -79,7 +79,7 @@ static const uint8_t svq1_inter_multistage_vlc[6][8][2] = { }; /* values in this table range from 0..255; adjust retrieved value by +0 */ -static const uint16_t svq1_intra_mean_vlc[256][2] = { +const uint16_t ff_svq1_intra_mean_vlc[256][2] = { /* { code, length } */ { 0x37, 6 }, { 0x56, 7 }, { 0x1, 17 }, { 0x1, 20 }, { 0x2, 20 }, { 0x3, 20 }, { 0x0, 20 }, { 0x4, 20 }, @@ -148,7 +148,7 @@ static const uint16_t svq1_intra_mean_vlc[256][2] = { }; /* values in this table range from -256..255; adjust retrieved value by -256 */ -static const uint16_t svq1_inter_mean_vlc[512][2] = { +const uint16_t ff_svq1_inter_mean_vlc[512][2] = { /* { code, length } */ { 0x5A, 22 }, { 0xD4, 22 }, { 0xD5, 22 }, { 0xD6, 22 }, { 0xD7, 22 }, { 0xD8, 22 }, { 0xD9, 22 }, { 0xDA, 22 }, diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c new file mode 100644 index 0000000000..9aefce26fd --- /dev/null +++ b/libavcodec/svq1dec.c @@ -0,0 +1,829 @@ +/* + * SVQ1 decoder + * ported to MPlayer by Arpi <arpi@thot.banki.hu> + * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> + * + * Copyright (C) 2002 the xine project + * Copyright (C) 2002 the ffmpeg project + * + * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> + * + * This file is part of FFmpeg. + * + * FFmpeg 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 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file svq1.c + * Sorenson Vector Quantizer #1 (SVQ1) video codec. + * For more information of the SVQ1 algorithm, visit: + * http://www.pcisys.net/~melanson/codecs/ + */ + + +//#define DEBUG_SVQ1 +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" + +#include "svq1.h" + +#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_inter_multistage[6]; +static VLC svq1_intra_mean; +static VLC svq1_inter_mean; + +/* motion vector (prediction) */ +typedef struct svq1_pmv_s { + int x; + int y; +} svq1_pmv_t; + +static const uint16_t checksum_table[256] = { + 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, + 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, + 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, + 0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, + 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, + 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D, + 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4, + 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC, + 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, + 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, + 0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, + 0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, + 0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, + 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, + 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70, + 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78, + 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F, + 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, + 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, + 0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, + 0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, + 0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, + 0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C, + 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634, + 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB, + 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3, + 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, + 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, + 0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, + 0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, + 0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, + 0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 +}; + +static const uint8_t string_table[256] = { + 0x00, 0xD5, 0x7F, 0xAA, 0xFE, 0x2B, 0x81, 0x54, + 0x29, 0xFC, 0x56, 0x83, 0xD7, 0x02, 0xA8, 0x7D, + 0x52, 0x87, 0x2D, 0xF8, 0xAC, 0x79, 0xD3, 0x06, + 0x7B, 0xAE, 0x04, 0xD1, 0x85, 0x50, 0xFA, 0x2F, + 0xA4, 0x71, 0xDB, 0x0E, 0x5A, 0x8F, 0x25, 0xF0, + 0x8D, 0x58, 0xF2, 0x27, 0x73, 0xA6, 0x0C, 0xD9, + 0xF6, 0x23, 0x89, 0x5C, 0x08, 0xDD, 0x77, 0xA2, + 0xDF, 0x0A, 0xA0, 0x75, 0x21, 0xF4, 0x5E, 0x8B, + 0x9D, 0x48, 0xE2, 0x37, 0x63, 0xB6, 0x1C, 0xC9, + 0xB4, 0x61, 0xCB, 0x1E, 0x4A, 0x9F, 0x35, 0xE0, + 0xCF, 0x1A, 0xB0, 0x65, 0x31, 0xE4, 0x4E, 0x9B, + 0xE6, 0x33, 0x99, 0x4C, 0x18, 0xCD, 0x67, 0xB2, + 0x39, 0xEC, 0x46, 0x93, 0xC7, 0x12, 0xB8, 0x6D, + 0x10, 0xC5, 0x6F, 0xBA, 0xEE, 0x3B, 0x91, 0x44, + 0x6B, 0xBE, 0x14, 0xC1, 0x95, 0x40, 0xEA, 0x3F, + 0x42, 0x97, 0x3D, 0xE8, 0xBC, 0x69, 0xC3, 0x16, + 0xEF, 0x3A, 0x90, 0x45, 0x11, 0xC4, 0x6E, 0xBB, + 0xC6, 0x13, 0xB9, 0x6C, 0x38, 0xED, 0x47, 0x92, + 0xBD, 0x68, 0xC2, 0x17, 0x43, 0x96, 0x3C, 0xE9, + 0x94, 0x41, 0xEB, 0x3E, 0x6A, 0xBF, 0x15, 0xC0, + 0x4B, 0x9E, 0x34, 0xE1, 0xB5, 0x60, 0xCA, 0x1F, + 0x62, 0xB7, 0x1D, 0xC8, 0x9C, 0x49, 0xE3, 0x36, + 0x19, 0xCC, 0x66, 0xB3, 0xE7, 0x32, 0x98, 0x4D, + 0x30, 0xE5, 0x4F, 0x9A, 0xCE, 0x1B, 0xB1, 0x64, + 0x72, 0xA7, 0x0D, 0xD8, 0x8C, 0x59, 0xF3, 0x26, + 0x5B, 0x8E, 0x24, 0xF1, 0xA5, 0x70, 0xDA, 0x0F, + 0x20, 0xF5, 0x5F, 0x8A, 0xDE, 0x0B, 0xA1, 0x74, + 0x09, 0xDC, 0x76, 0xA3, 0xF7, 0x22, 0x88, 0x5D, + 0xD6, 0x03, 0xA9, 0x7C, 0x28, 0xFD, 0x57, 0x82, + 0xFF, 0x2A, 0x80, 0x55, 0x01, 0xD4, 0x7E, 0xAB, + 0x84, 0x51, 0xFB, 0x2E, 0x7A, 0xAF, 0x05, 0xD0, + 0xAD, 0x78, 0xD2, 0x07, 0x53, 0x86, 0x2C, 0xF9 +}; + +#define SVQ1_PROCESS_VECTOR()\ + for (; level > 0; i++) {\ + /* process next depth */\ + if (i == m) {\ + m = n;\ + if (--level == 0)\ + break;\ + }\ + /* divide block if next bit set */\ + if (get_bits (bitbuf, 1) == 0)\ + 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);\ + }\ +\ + /* 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);\ + } + +#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);\ + } + +#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);\ + } + +#define SVQ1_CALC_CODEBOOK_ENTRIES(cbook)\ + codebook = (const uint32_t *) cbook[level];\ + 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);\ + }\ + mean -= (stages * 128);\ + n4 = ((mean + (mean >> 31)) << 16) | (mean & 0xFFFF); + +static int svq1_decode_block_intra (GetBitContext *bitbuf, uint8_t *pixels, int pitch ) { + uint32_t bit_cache; + uint8_t *list[63]; + uint32_t *dst; + const uint32_t *codebook; + int entries[6]; + int i, j, m, n; + int mean, stages; + unsigned x, y, width, height, level; + uint32_t n1, n2, n3, n4; + + /* initialize list for breadth first processing of vectors */ + list[0] = pixels; + + /* recursively process vector */ + for (i=0, m=1, n=1, level=5; i < n; i++) { + SVQ1_PROCESS_VECTOR(); + + /* destination address and vector size */ + dst = (uint32_t *) list[i]; + width = 1 << ((4 + level) /2); + height = 1 << ((3 + level) /2); + + /* get number of stages (-1 skips vector, 0 for mean only) */ + 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 */ + } + + 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 */ + } + + 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); + } + } else { + SVQ1_CALC_CODEBOOK_ENTRIES(ff_svq1_intra_codebooks); + SVQ1_DO_CODEBOOK_INTRA() + } + } + + return 0; +} + +static int svq1_decode_block_non_intra (GetBitContext *bitbuf, uint8_t *pixels, int pitch ) { + uint32_t bit_cache; + 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; + uint32_t n1, n2, n3, n4; + + /* initialize list for breadth first processing of vectors */ + list[0] = pixels; + + /* recursively process vector */ + for (i=0, m=1, n=1, level=5; i < n; i++) { + SVQ1_PROCESS_VECTOR(); + + /* destination address and vector size */ + dst = (uint32_t *) list[i]; + width = 1 << ((4 + level) /2); + height = 1 << ((3 + level) /2); + + /* 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 > 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 */ + } + + mean = get_vlc2(bitbuf, svq1_inter_mean.table, 9, 3) - 256; + + SVQ1_CALC_CODEBOOK_ENTRIES(ff_svq1_inter_codebooks); + SVQ1_DO_CODEBOOK_NONINTRA() + } + return 0; +} + +static int svq1_decode_motion_vector (GetBitContext *bitbuf, svq1_pmv_t *mv, svq1_pmv_t **pmv) { + int diff; + int i; + + for (i=0; i < 2; i++) { + + /* get motion code */ + 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 + mid_pred(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26; + else + 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; + + src = &previous[x + y*pitch]; + dst = current; + + for (i=0; i < 16; i++) { + memcpy (dst, src, 16); + src += pitch; + dst += pitch; + } +} + +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 *src; + uint8_t *dst; + svq1_pmv_t mv; + svq1_pmv_t *pmv[3]; + int result; + + /* predict and decode motion vector */ + pmv[0] = &motion[0]; + if (y == 0) { + pmv[1] = + pmv[2] = pmv[0]; + } + else { + pmv[1] = &motion[(x / 8) + 2]; + pmv[2] = &motion[(x / 8) + 4]; + } + + result = svq1_decode_motion_vector (bitbuf, &mv, pmv); + + 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; + + if(y + (mv.y >> 1)<0) + mv.y= 0; + if(x + (mv.x >> 1)<0) + mv.x= 0; + +#if 0 + int w= (s->width+15)&~15; + int h= (s->height+15)&~15; + 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; + + s->dsp.put_pixels_tab[0][((mv.y & 1) << 1) | (mv.x & 1)](dst,src,pitch,16); + + return 0; +} + +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 *src; + uint8_t *dst; + svq1_pmv_t mv; + svq1_pmv_t *pmv[4]; + int i, result; + + /* predict and decode motion vector (0) */ + pmv[0] = &motion[0]; + if (y == 0) { + pmv[1] = + pmv[2] = pmv[0]; + } + else { + pmv[1] = &motion[(x / 8) + 2]; + pmv[2] = &motion[(x / 8) + 4]; + } + + result = svq1_decode_motion_vector (bitbuf, &mv, pmv); + + if (result != 0) + return result; + + /* predict and decode motion vector (1) */ + pmv[0] = &mv; + if (y == 0) { + pmv[1] = + pmv[2] = pmv[0]; + } + else { + pmv[1] = &motion[(x / 8) + 3]; + } + result = svq1_decode_motion_vector (bitbuf, &motion[0], pmv); + + if (result != 0) + return result; + + /* predict and decode motion vector (2) */ + pmv[1] = &motion[0]; + pmv[2] = &motion[(x / 8) + 1]; + + result = svq1_decode_motion_vector (bitbuf, &motion[(x / 8) + 2], pmv); + + if (result != 0) + return result; + + /* predict and decode motion vector (3) */ + pmv[2] = &motion[(x / 8) + 2]; + pmv[3] = &motion[(x / 8) + 3]; + + result = svq1_decode_motion_vector (bitbuf, pmv[3], pmv); + + if (result != 0) + return result; + + /* form predictions */ + for (i=0; i < 4; i++) { + int mvx= pmv[i]->x + (i&1)*16; + int mvy= pmv[i]->y + (i>>1)*16; + + ///XXX /FIXME clipping or padding? + if(y + (mvy >> 1)<0) + mvy= 0; + if(x + (mvx >> 1)<0) + mvx= 0; + +#if 0 + int w= (s->width+15)&~15; + int h= (s->height+15)&~15; + if(x + (mvx >> 1)<0 || y + (mvy >> 1)<0 || x + (mvx >> 1) + 8 > w || y + (mvy >> 1) + 8> h) + av_log(s->avctx, AV_LOG_INFO, "%d %d %d %d\n", x, y, x + (mvx >> 1), y + (mvy >> 1)); +#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 */ + if (i & 1) { + current += 8*(pitch - 1); + } else { + current += 8; + } + } + + return 0; +} + +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) { + uint32_t block_type; + 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[(x / 8) + 2].x = + motion[(x / 8) + 2].y = + motion[(x / 8) + 3].x = + motion[(x / 8) + 3].y = 0; + } + + switch (block_type) { + case SVQ1_BLOCK_SKIP: + svq1_skip_block (current, previous, pitch, x, y); + break; + + case SVQ1_BLOCK_INTER: + result = svq1_motion_inter_block (s, bitbuf, current, previous, pitch, motion, x, y); + + if (result != 0) + { +#ifdef DEBUG_SVQ1 + av_log(s->avctx, AV_LOG_INFO, "Error in svq1_motion_inter_block %i\n",result); +#endif + break; + } + result = svq1_decode_block_non_intra (bitbuf, current, pitch); + break; + + case SVQ1_BLOCK_INTER_4V: + result = svq1_motion_inter_4v_block (s, bitbuf, current, previous, pitch, motion, x, y); + + if (result != 0) + { +#ifdef DEBUG_SVQ1 + av_log(s->avctx, AV_LOG_INFO, "Error in svq1_motion_inter_4v_block %i\n",result); +#endif + break; + } + result = svq1_decode_block_non_intra (bitbuf, current, pitch); + break; + + case SVQ1_BLOCK_INTRA: + result = svq1_decode_block_intra (bitbuf, current, pitch); + break; + } + + return result; +} + +static uint16_t svq1_packet_checksum (uint8_t *data, int length, int value) { + int i; + + for (i=0; i < length; i++) { + value = checksum_table[data[i] ^ (value >> 8)] ^ ((value & 0xFF) << 8); + } + + return value; +} + +static void svq1_parse_string (GetBitContext *bitbuf, uint8_t *out) { + uint8_t seed; + int i; + + out[0] = get_bits (bitbuf, 8); + + seed = string_table[out[0]]; + + for (i=1; i <= out[0]; i++) { + out[i] = get_bits (bitbuf, 8) ^ seed; + seed = string_table[out[i] ^ seed]; + } +} + +static int svq1_decode_frame_header (GetBitContext *bitbuf,MpegEncContext *s) { + int frame_size_code; + int temporal_reference; + + temporal_reference = get_bits (bitbuf, 8); + + /* frame type */ + s->pict_type= get_bits (bitbuf, 2)+1; + if(s->pict_type==4) + return -1; + + if (s->pict_type == I_TYPE) { + + /* unknown fields */ + if (s->f_code == 0x50 || s->f_code == 0x60) { + int csum = get_bits (bitbuf, 16); + + csum = svq1_packet_checksum ((uint8_t *)bitbuf->buffer, bitbuf->size_in_bits>>3, csum); + +// av_log(s->avctx, AV_LOG_INFO, "%s checksum (%02x) for packet data\n", +// (csum == 0) ? "correct" : "incorrect", csum); + } + + if ((s->f_code ^ 0x10) >= 0x50) { + uint8_t msg[256]; + + svq1_parse_string (bitbuf, msg); + + av_log(s->avctx, AV_LOG_INFO, "embedded message: \"%s\"\n", (char *) msg); + } + + skip_bits (bitbuf, 2); + skip_bits (bitbuf, 2); + skip_bits1 (bitbuf); + + /* load frame size */ + frame_size_code = get_bits (bitbuf, 3); + + if (frame_size_code == 7) { + /* load width, height (12 bits each) */ + s->width = get_bits (bitbuf, 12); + s->height = get_bits (bitbuf, 12); + + if (!s->width || !s->height) + return -1; + } else { + /* get width, height from table */ + s->width = ff_svq1_frame_size_table[frame_size_code].width; + s->height = ff_svq1_frame_size_table[frame_size_code].height; + } + } + + /* unknown fields */ + if (get_bits (bitbuf, 1) == 1) { + skip_bits1 (bitbuf); /* use packet checksum if (1) */ + skip_bits1 (bitbuf); /* component checksums after image data if (1) */ + + if (get_bits (bitbuf, 2) != 0) + return -1; + } + + if (get_bits (bitbuf, 1) == 1) { + skip_bits1 (bitbuf); + skip_bits (bitbuf, 4); + skip_bits1 (bitbuf); + skip_bits (bitbuf, 2); + + while (get_bits (bitbuf, 1) == 1) { + skip_bits (bitbuf, 8); + } + } + + return 0; +} + +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; + + /* initialize bit buffer */ + init_get_bits(&s->gb,buf,buf_size*8); + + /* decode frame header */ + s->f_code = get_bits (&s->gb, 22); + + if ((s->f_code & ~0x70) || !(s->f_code & 0x60)) + return -1; + + /* swap some header bytes (why?) */ + if (s->f_code != 0x20) { + uint32_t *src = (uint32_t *) (buf + 4); + + for (i=0; i < 4; i++) { + src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i]; + } + } + + result = svq1_decode_frame_header (&s->gb, s); + + if (result != 0) + { +#ifdef DEBUG_SVQ1 + av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_frame_header %i\n",result); +#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; + + /* decode y, u and v components */ + for (i=0; i < 3; i++) { + int linesize; + if (i == 0) { + width = (s->width+15)&~15; + height = (s->height+15)&~15; + linesize= s->linesize; + } else { + if(s->flags&CODEC_FLAG_GRAY) break; + width = (s->width/4+15)&~15; + height = (s->height/4+15)&~15; + linesize= s->uvlinesize; + } + + current = s->current_picture.data[i]; + + if(s->pict_type==B_TYPE){ + previous = s->next_picture.data[i]; + }else{ + previous = s->last_picture.data[i]; + } + + 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) + { +//#ifdef DEBUG_SVQ1 + av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_block %i (keyframe)\n",result); +//#endif + return result; + } + } + current += 16*linesize; + } + } else { + svq1_pmv_t pmv[width/8+3]; + /* delta frame */ + 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) + { +#ifdef DEBUG_SVQ1 + av_log(s->avctx, AV_LOG_INFO, "Error in svq1_decode_delta_block %i\n",result); +#endif + return result; + } + } + + pmv[0].x = + pmv[0].y = 0; + + current += 16*linesize; + } + } + } + + *pict = *(AVFrame*)&s->current_picture; + + + MPV_frame_end(s); + + *data_size=sizeof(AVFrame); + return buf_size; +} + +static int svq1_decode_init(AVCodecContext *avctx) +{ + MpegEncContext *s = avctx->priv_data; + int i; + + MPV_decode_defaults(s); + + s->avctx = avctx; + s->width = (avctx->width+3)&~3; + s->height = (avctx->height+3)&~3; + s->codec_id= avctx->codec->id; + avctx->pix_fmt = PIX_FMT_YUV410P; + avctx->has_b_frames= 1; // not true, but DP frames and these behave like unidirectional b frames + s->flags= avctx->flags; + if (MPV_common_init(s) < 0) return -1; + + init_vlc(&svq1_block_type, 2, 4, + &ff_svq1_block_type_vlc[0][1], 2, 1, + &ff_svq1_block_type_vlc[0][0], 2, 1, 1); + + 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, + &ff_svq1_intra_multistage_vlc[i][0][1], 2, 1, + &ff_svq1_intra_multistage_vlc[i][0][0], 2, 1, 1); + init_vlc(&svq1_inter_multistage[i], 3, 8, + &ff_svq1_inter_multistage_vlc[i][0][1], 2, 1, + &ff_svq1_inter_multistage_vlc[i][0][0], 2, 1, 1); + } + + init_vlc(&svq1_intra_mean, 8, 256, + &ff_svq1_intra_mean_vlc[0][1], 4, 2, + &ff_svq1_intra_mean_vlc[0][0], 4, 2, 1); + + init_vlc(&svq1_inter_mean, 9, 512, + &ff_svq1_inter_mean_vlc[0][1], 4, 2, + &ff_svq1_inter_mean_vlc[0][0], 4, 2, 1); + + return 0; +} + +static int svq1_decode_end(AVCodecContext *avctx) +{ + MpegEncContext *s = avctx->priv_data; + + MPV_common_end(s); + return 0; +} + + +AVCodec svq1_decoder = { + "svq1", + CODEC_TYPE_VIDEO, + CODEC_ID_SVQ1, + sizeof(MpegEncContext), + svq1_decode_init, + NULL, + svq1_decode_end, + svq1_decode_frame, + CODEC_CAP_DR1, + .flush= ff_mpeg_flush, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1}, +}; diff --git a/libavcodec/svq1enc.c b/libavcodec/svq1enc.c new file mode 100644 index 0000000000..5345ed6dcf --- /dev/null +++ b/libavcodec/svq1enc.c @@ -0,0 +1,588 @@ +/* + * SVQ1 Encoder + * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net> + * + * This file is part of FFmpeg. + * + * FFmpeg 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 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file svq1enc.c + * Sorenson Vector Quantizer #1 (SVQ1) video codec. + * For more information of the SVQ1 algorithm, visit: + * http://www.pcisys.net/~melanson/codecs/ + */ + + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" + +#include "svq1.h" +#include "svq1enc_cb.h" + +#undef NDEBUG +#include <assert.h> + + +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 independent 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 frame_height; + + /* Y plane block dimensions */ + int y_block_width; + int y_block_height; + + /* U & V plane (C planes) block dimensions */ + int c_block_width; + int c_block_height; + + uint16_t *mb_type; + uint32_t *dummy; + int16_t (*motion_val8[3])[2]; + int16_t (*motion_val16[3])[2]; + + int64_t rd_total; +} SVQ1Context; + +static void svq1_write_header(SVQ1Context *s, int frame_type) +{ + int i; + + /* frame code */ + put_bits(&s->pb, 22, 0x20); + + /* temporal reference (sure hope this is a "don't care") */ + put_bits(&s->pb, 8, 0x00); + + /* frame type */ + put_bits(&s->pb, 2, frame_type - 1); + + if (frame_type == I_TYPE) { + + /* no checksum since frame code is 0x20 */ + + /* no embedded string either */ + + /* output 5 unknown bits (2 + 2 + 1) */ + put_bits(&s->pb, 5, 2); /* 2 needed by quicktime decoder */ + + for (i = 0; i < 7; i++) + { + if ((ff_svq1_frame_size_table[i].width == s->frame_width) && + (ff_svq1_frame_size_table[i].height == s->frame_height)) + { + put_bits(&s->pb, 3, i); + break; + } + } + + 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); + } + } + + /* no checksum or extra data (next 2 bits get 0) */ + put_bits(&s->pb, 2, 0); +} + + +#define QUALITY_THRESHOLD 100 +#define THRESHOLD_MULTIPLIER 0.6 + +#if defined(HAVE_ALTIVEC) +#undef vector +#endif + +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 w= 2<<((level+2)>>1); + 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; + //FIXME optimize, this doenst need to be done multiple times + if(intra){ + codebook_sum= svq1_intra_codebook_sum[level]; + codebook= ff_svq1_intra_codebooks[level]; + mean_vlc= ff_svq1_intra_mean_vlc; + multistage_vlc= ff_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= ff_svq1_inter_codebooks[level]; + mean_vlc= ff_svq1_inter_mean_vlc + 256; + multistage_vlc= ff_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; + } + } + } + + best_count=0; + best_score -= ((block_sum[0]*block_sum[0])>>(level+3)); + best_mean= (block_sum[0] + (size>>1)) >> (level+3); + + if(level<4){ + for(count=1; count<7; count++){ + int best_vector_score= INT_MAX; + int best_vector_sum=-999, best_vector_mean=-999; + const int stage= count-1; + const int8_t *vector; + + for(i=0; i<16; i++){ + int sum= codebook_sum[stage*16 + i]; + int sqr, diff, score; + + vector = codebook + stage*size*16 + i*size; + sqr = s->dsp.ssd_int8_vs_int16(vector, block[stage], size); + diff= block_sum[stage] - sum; + score= sqr - ((diff*(int64_t)diff)>>(level+3)); //FIXME 64bit slooow + if(score < best_vector_score){ + int mean= (diff + (size>>1)) >> (level+3); + assert(mean >-300 && mean<300); + mean= av_clip(mean, intra?0:-256, 255); + best_vector_score= score; + best_vector[stage]= i; + best_vector_sum= sum; + best_vector_mean= mean; + } + } + 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 += + lambda*(+ 1 + 4*count + + 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; + best_mean= best_vector_mean; + } + } + } + + split=0; + if(best_score > threshold && level){ + int score=0; + int offset= (level&1) ? stride*h/2 : w/2; + PutBitContext backup[6]; + + for(i=level-1; i>=0; i--){ + backup[i]= s->reorder_pb[i]; + } + 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; + }else{ + for(i=level-1; i>=0; i--){ + s->reorder_pb[i]= backup[i]; + } + } + } + if (level > 0) + put_bits(&s->reorder_pb[level], 1, split); + + if(!split){ + 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], + 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 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) +{ + int x, y; + int i; + int block_width, block_height; + int level; + int threshold[6]; + 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; + for (level = 4; level >= 0; level--) + threshold[level] = threshold[level + 1] * THRESHOLD_MULTIPLIER; + + block_width = (width + 15) / 16; + block_height = (height + 15) / 16; + + 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)); + } + + s->m.mb_type= s->mb_type; + + //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; + + 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); + + 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]; + + s->m.new_picture.data[0]= src - y*16*stride; //ugly + s->m.mb_y= y; + + 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); + + ff_estimate_p_frame_motion(&s->m, x, y); + } + 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); + } + + s->m.first_slice_line=1; + for (y = 0; y < block_height; y++) { + uint8_t src[stride*16]; + + 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); + + 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; + } + + s->m.mb_x= x; + ff_init_block_index(&s->m); + ff_update_block_index(&s->m); + + 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= ff_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= ff_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= ff_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; + + dsputil_init(&s->dsp, avctx); + avctx->coded_frame= (AVFrame*)&s->picture; + + s->frame_width = avctx->width; + s->frame_height = avctx->height; + + s->y_block_width = (s->frame_width + 15) / 16; + s->y_block_height = (s->frame_height + 15) / 16; + + s->c_block_width = (s->frame_width / 4 + 15) / 16; + s->c_block_height = (s->frame_height / 4 + 15) / 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, + 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 = avctx->gop_size && 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); + 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_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; +} + + +AVCodec svq1_encoder = { + "svq1", + CODEC_TYPE_VIDEO, + CODEC_ID_SVQ1, + sizeof(SVQ1Context), + svq1_encode_init, + svq1_encode_frame, + svq1_encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV410P, -1}, +}; diff --git a/libavcodec/svq1enc_cb.h b/libavcodec/svq1enc_cb.h new file mode 100644 index 0000000000..c97b92de89 --- /dev/null +++ b/libavcodec/svq1enc_cb.h @@ -0,0 +1,96 @@ +/* + * SVQ1 Encoder + * Copyright (C) 2004 Mike Melanson <melanson@pcisys.net> + * + * This file is part of FFmpeg. + * + * FFmpeg 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 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file svq1enc_cb.h + * svq1 code books. + */ + +#ifndef AVCODEC_SVQ1ENC_CB_H +#define AVCODEC_SVQ1ENC_CB_H + +#include <stdint.h> + +static const int8_t svq1_inter_codebook_sum[4][16*6] = { + { + -1, 1, -2, 0, 1, -1, -1, -1, -2, -1, 1, -1, -1, 0, -1, -1, + 0, -1, -1, -1, -1, 0, -1, 0, 0, 0, -3, 1, -1, 0, 1, -1, + 1, -1, 2, 2, 1, 1, 2, 0, 0, 0, -1, 1, 1, 0, 0, 0, + 1, -1, 0, 1, -1, 1, 1, 0, 1, 0, -1, 1, 1, 0, 0, 0, + -2, 0, 0, -2, 0, 0, -2, 0, -2, -1, -2, -1, 0, 0, -1, 0, + 1, 0, 1, -1, 2, 2, 1, 2, 2, 1, 0, 1, 1, 0, 1, 1, + },{ + -2, 1, -1, -1, 1, 0, 1, -1, -1, -1, 1, -1, 0, -1, 0, -1, + 0, 0, 0, -2, 0, 1, 0, -1, -1, 0, 2, -3, 1, -2, 3, -1, + 2, 0, 2, 1, 1, -1, 1, 1, 0, 0, 1, 1, 2, -2, 1, 0, + -2, -1, 2, -2, -2, 0, -3, 0, -1, 0, -1, 0, -1, 0, -2, -3, + 1, -2, -2, -1, 1, -1, -1, 1, -1, 1, 1, 0, -2, 0, 1, 1, + 1, 1, 2, 1, 0, 0, -1, 0, 0, 1, 0, 1, -1, 1, 0, 2, + },{ + 0, 0, 0, -3, 1, 1, 1, -3, 0, -1, 0, -3, 1, -3, 0, -2, + 1, 2, -1, -3, 0, -3, 1, -1, 0, -1, 0, 0, 1, 2, 1, 1, + -1, 2, -3, 3, 1, 0, -5, 1, 0, -1, -3, 1, 0, 2, 0, -3, + 4, 2, 0, -2, 1, -2, 3, -2, 1, 1, 0, -1, 2, 5, 3, 1, + -1, 0, 2, -3, -2, 0, 0, -2, 2, -3, -1, -1, 2, 1, 0, -2, + 3, -1, 1, -1, 2, 4, 0, 1, 0, 1, 0, -1, -3, -2, -1, 0, + },{ + 0, 2, -1, -1, 2, -4, -2, 3, 0, -1, -5, 1, 0, 1, 0, 6, + -2, 2, 0, 1, 1, -1, -1, -2, 1, -2, -1, 0, 2, -2, -2, -1, + -4, 2, -1, -3, -1, -2, 2, -1, 2, -1, 2, 0, 3, -3, -3, 0, + -3, 0, 0, -2, 4, -4, 0, -1, 4, 0, -2, -2, 3, -2, 0, 4, + 5, 0, 1, 0, -3, 3, 3, 2, 0, 0, 1, 2, -5, -2, -3, 0, + -3, 2, -2, 2, -2, 4, 7, -3, 4, 2, 3, 2, -1, 0, -3, 1, + } +}; + +static const int8_t svq1_intra_codebook_sum[4][16*6] = { + { + 0, 0, 0, -1, -1, -1, -1, -2, 0, -1, -1, 0, -1, 0, 1, 0, + 1, 0, -1, 1, 0, 0, -1, 1, -1, 0, 0, 0, -1, 1, 0, 0, + -1, 0, 0, 1, -1, 1, 0, -1, -1, 0, 1, 1, 0, 0, -1, 1, + 0, 1, 0, 0, 1, -1, 0, 0, 0, -1, 1, 0, 1, 0, -2, 1, + 0, -1, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 0, 0, + 0, 1, 1, 0, 0, -1, 0, 1, 0, 0, 0, 0, -1, 1, 1, -1, + },{ + -1, -2, 0, -1, 1, 0, -1, 0, -1, -4, -1, -2, -1, -2, 1, -2, + 0, 0, 4, -2, -1, 1, 1, 0, 2, 1, 1, 0, 2, 0, 0, 0, + 1, 1, 0, -1, -1, -1, 1, 0, -1, -3, -3, 1, -1, 1, -2, -1, + 1, -1, 0, 1, 2, 1, -1, -1, 1, 1, 1, 2, 1, 0, 1, -2, + -2, 0, -1, -2, -2, 0, -1, -1, -1, 0, 1, 0, -1, -1, 0, -1, + 0, 2, 1, 2, 2, 1, -1, 1, 0, 2, 0, -1, 1, 0, 0, 0, + },{ + -2, 0, -1, -1, 1, 1, -2, 0, -2, 0, 1, -2, -2, 1, -1, -1, + 3, -2, 0, -3, -4, -3, 2, 1, 0, 3, -2, 2, 3, 2, 2, -1, + -3, 1, 0, 1, 0, 0, 0, 1, -2, 1, -2, -2, -1, -2, -2, 2, + 0, -4, 0, 2, -1, 0, 2, 2, 2, 1, 0, -1, -1, 1, -3, 2, + 2, 1, 0, 3, 1, -1, 1, 3, 1, 0, 1, 1, 2, -1, 1, -1, + -2, -1, 0, -1, 1, -1, 1, -2, -2, -1, -1, -3, 1, -4, -3, 1, + },{ + -2, 0, -2, 3, -1, -1, 0, 2, 2, -1, -3, 2, 1, 0, -2, -1, + -3, -2, -2, 1, 2, -3, 0, 1, -5, -2, -3, 0, -2, -1, 2, 0, + -1, -1, 0, -2, 1, 3, -7, -2, -2, -1, 2, -1, 0, 3, 1, 3, + 1, 0, 0, 1, 2, 3, 1, 2, 0, -2, -2, 1, 1, 2, 2, 3, + 4, 1, -1, 2, -2, 4, 0, 0, 0, 4, 2, 0, -2, -2, 2, -4, + -1, 5, -2, -2, -3, 2, -3, -1, 3, -3, 0, 4, 3, 0, 1, -2, + } +}; + +#endif /* AVCODEC_SVQ1ENC_CB_H */ |