-
-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=0;
- int diff, mean, score;
-
- vector = codebook + stage*size*16 + i*size;
-
- for(j=0; j<size; j++){
- int v= vector[j];
- sqr += (v - block[stage][j])*(v - block[stage][j]);
- }
- diff= block_sum[stage] - sum;
- mean= (diff + (size>>1)) >> (level+3);
- 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[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