62 #define QUANT_BIAS_SHIFT 8
64 #define QMAT_SHIFT_MMX 16
82 uint16_t (*qmat16)[2][64],
83 const uint16_t *quant_matrix,
84 int bias,
int qmin,
int qmax,
int intra)
90 for (qscale = qmin; qscale <= qmax; qscale++) {
97 for (i = 0; i < 64; i++) {
99 int64_t den = (int64_t) qscale * quant_matrix[j];
109 for (i = 0; i < 64; i++) {
111 int64_t den =
ff_aanscales[i] * (int64_t) qscale * quant_matrix[j];
121 for (i = 0; i < 64; i++) {
123 int64_t den = (int64_t) qscale * quant_matrix[j];
134 if (qmat16[qscale][0][i] == 0 ||
135 qmat16[qscale][0][i] == 128 * 256)
136 qmat16[
qscale][0][i] = 128 * 256 - 1;
139 qmat16[qscale][0][i]);
143 for (i = intra; i < 64; i++) {
148 while (((max * qmat[qscale][i]) >> shift) > INT_MAX) {
155 "Warning, QMAT_SHIFT is larger than %d, overflows possible\n",
176 for (i = 0; i < 64; i++) {
191 for (i = 0; i < s->
mb_num; i++) {
202 #define COPY(a) dst->a= src->a
227 for (i = -16; i < 16; i++) {
258 int i,
ret, format_supported;
267 "only YUV420 and YUV422 are supported\n");
273 format_supported = 0;
282 format_supported = 1;
288 format_supported = 1;
290 if (!format_supported) {
325 "keyframe interval too large!, reducing it from %d to %d\n",
354 "intra dc precision must be positive, note some applications use"
355 " 0 and some 8 as base meaning 8bit, the value must not be smaller than that\n");
422 av_log(avctx,
AV_LOG_ERROR,
"Either both buffer size and max rate or neither must be specified\n");
428 "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
445 "impossible bitrate constraints, this will fail\n");
470 "Warning vbv_delay will be set to 0xFFFF (=VBR) as the "
471 "specified vbv buffer is too large for the given bitrate!\n");
483 "OBMC is only supported with simple mb decision\n");
501 "max b frames must be 0 or positive for mpegvideo based encoders\n");
511 "Invalid pixel aspect ratio %i/%i, limit is 255/255 reducing\n",
519 (avctx->
width > 2048 ||
526 ((avctx->
width &3) ||
533 (avctx->
width > 4095 ||
540 (avctx->
width > 16383 ||
541 avctx->
height > 16383 )) {
542 av_log(avctx,
AV_LOG_ERROR,
"MPEG-2 does not support resolutions above 16383x16383\n");
577 "mpeg2 style quantization not supported by codec\n");
595 "closed gop with scene change detection are not supported yet, "
596 "set threshold to 1000000000\n");
603 "low delay forcing is only available for mpeg2\n");
608 "b frames cannot be used with low delay\n");
614 if (avctx->
qmax > 12) {
616 "non linear quant only supports qmax <= 12 currently\n");
628 "multi threaded encoding not supported by codec\n");
634 "automatic thread number detection not supported by codec, "
652 "notice: b_frame_strategy only affects the first pass\n");
675 av_log(avctx,
AV_LOG_ERROR,
"qmin and or qmax are invalid, they must be 0 < min <= max\n");
689 "timebase %d/%d not supported by MPEG 4 standard, "
690 "the maximum admitted value for the timebase denominator "
724 "The specified picture size of %dx%d is not valid for the "
725 "H.261 codec.\nValid sizes are 176x144, 352x288\n",
740 "The specified picture size of %dx%d is not valid for "
741 "the H.263 codec.\nValid sizes are 128x96, 176x144, "
742 "352x288, 704x576, and 1408x1152. "
858 (
MAX_RUN + 1) * 2 *
sizeof(
int), fail);
875 2 * 64 *
sizeof(uint16_t), fail);
900 for (i = 0; i < 64; i++) {
935 #if FF_API_ERROR_RATE
942 #if FF_API_NORMALIZE_AQP
1047 for (y = 0; y < 16; y++) {
1048 for (x = 0; x < 16; x++) {
1049 acc +=
FFABS(src[x + y * stride] - ref);
1065 for (y = 0; y < h; y += 16) {
1066 for (x = 0; x < w; x += 16) {
1071 int sae =
get_sae(src + offset, mean, stride);
1073 acc += sae + 500 < sad;
1084 int i, display_picture_number = 0,
ret;
1099 "Invalid pts (%"PRId64
") <= last (%"PRId64
")\n",
1104 if (!s->
low_delay && display_picture_number == 1)
1113 "Warning: AVFrame.pts=? trying to guess (%"PRId64
")\n",
1116 pts = display_picture_number;
1122 if (!pic_arg->
buf[0] ||
1160 int h_chroma_shift, v_chroma_shift;
1165 for (i = 0; i < 3; i++) {
1166 int src_stride = pic_arg->
linesize[i];
1168 int h_shift = i ? h_chroma_shift : 0;
1169 int v_shift = i ? v_chroma_shift : 0;
1170 int w = s->
width >> h_shift;
1171 int h = s->
height >> v_shift;
1184 if (src_stride == dst_stride)
1185 memcpy(dst, src, src_stride * h);
1190 memcpy(dst2, src, w);
1226 int64_t score64 = 0;
1228 for (plane = 0; plane < 3; plane++) {
1230 const int bw = plane ? 1 : 2;
1231 for (y = 0; y < s->
mb_height * bw; y++) {
1232 for (x = 0; x < s->
mb_width * bw; x++) {
1233 int off = p->
shared ? 0 : 16;
1239 case 0: score =
FFMAX(score, v);
break;
1240 case 1: score +=
FFABS(v);
break;
1241 case 2: score64 += v * (int64_t)v;
break;
1242 case 3: score64 +=
FFABS(v * (int64_t)v * v);
break;
1243 case 4: score64 += (v * (int64_t)v) * (v * (int64_t)v);
break;
1266 int ret, got_output;
1283 int i, j, out_size, p_lambda, b_lambda,
lambda2;
1284 int64_t best_rd = INT64_MAX;
1285 int best_b_count = -1;
1295 b_lambda = p_lambda;
1320 pre_input = *pre_input_ptr;
1321 memcpy(data, pre_input_ptr->
f->
data,
sizeof(data));
1323 if (!pre_input.
shared && i) {
1391 return best_b_count;
1464 b_frames =
FFMAX(0, i - 1);
1467 for (i = 0; i < b_frames + 1; i++) {
1479 for (i = b_frames - 1; i >= 0; i--) {
1487 "warning, too many b frames in a row\n");
1510 for (i = 0; i < b_frames; i++) {
1556 for (i = 0; i < 4; i++) {
1616 for (intra = 0; intra < 2; intra++) {
1618 for (i = 0; i < 64; i++) {
1624 for (i = 0; i < 64; i++) {
1675 for (i = 0; i < 4; i++) {
1706 const AVFrame *pic_arg,
int *got_packet)
1709 int i, stuffing_count,
ret;
1736 for (i = 0; i < context_count; i++) {
1753 if (growing_buffer) {
1804 for (i = 0; i < context_count; i++) {
1818 for (i = 0; i < 4; i++) {
1834 if (stuffing_count) {
1836 stuffing_count + 50) {
1844 while (stuffing_count--) {
1851 stuffing_count -= 4;
1852 while (stuffing_count--) {
1878 "Internal error, negative bits\n");
1886 vbv_delay =
FFMAX(vbv_delay, min_delay);
1926 *got_packet = !!pkt->
size;
1931 int n,
int threshold)
1933 static const char tab[64] = {
1934 3, 2, 2, 1, 1, 1, 1, 1,
1935 1, 1, 1, 1, 1, 1, 1, 1,
1936 1, 1, 1, 1, 1, 1, 1, 1,
1937 0, 0, 0, 0, 0, 0, 0, 0,
1938 0, 0, 0, 0, 0, 0, 0, 0,
1939 0, 0, 0, 0, 0, 0, 0, 0,
1940 0, 0, 0, 0, 0, 0, 0, 0,
1941 0, 0, 0, 0, 0, 0, 0, 0
1950 if (threshold < 0) {
1952 threshold = -threshold;
1957 if (last_index <= skip_dc - 1)
1960 for (i = 0; i <= last_index; i++) {
1964 if (skip_dc && i == 0)
1968 }
else if (level > 1) {
1974 if (score >= threshold)
1976 for (i = skip_dc; i <= last_index; i++) {
1999 for (; i <= last_index; i++) {
2001 int level = block[j];
2003 if (level > maxlevel) {
2006 }
else if (level < minlevel) {
2016 "warning, clipping %d dct coefficients to %d..%d\n",
2017 overflow, minlevel, maxlevel);
2024 for (y = 0; y < 8; y++) {
2025 for (x = 0; x < 8; x++) {
2031 for (y2 =
FFMAX(y - 1, 0); y2 <
FFMIN(8, y + 2); y2++) {
2032 for (x2=
FFMAX(x - 1, 0); x2 <
FFMIN(8, x + 2); x2++) {
2033 int v = ptr[x2 + y2 *
stride];
2039 weight[x + 8 *
y]= (36 *
ff_sqrt(count * sqr - sum * sum)) / count;
2045 int motion_x,
int motion_y,
2046 int mb_block_height,
2051 int16_t orig[12][64];
2058 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
2059 ptrdiff_t wrap_y, wrap_c;
2061 for (i = 0; i < mb_block_count; i++)
2065 const int last_qp = s->
qscale;
2066 const int mb_xy = mb_x + mb_y * s->
mb_stride;
2097 (mb_y * 16 * wrap_y) + mb_x * 16;
2099 (mb_y * mb_block_height * wrap_c) + mb_x * mb_block_width;
2101 (mb_y * mb_block_height * wrap_c) + mb_x * mb_block_width;
2109 16, 16, mb_x * 16, mb_y * 16,
2114 mb_block_width, mb_block_height,
2115 mb_x * mb_block_width, mb_y * mb_block_height,
2117 ptr_cb = ebuf + 16 * wrap_y;
2120 mb_block_width, mb_block_height,
2121 mb_x * mb_block_width, mb_y * mb_block_height,
2123 ptr_cr = ebuf + 16 * wrap_y + 16;
2128 int progressive_score, interlaced_score;
2133 NULL, wrap_y, 8) - 400;
2135 if (progressive_score > 0) {
2137 NULL, wrap_y * 2, 8) +
2139 NULL, wrap_y * 2, 8);
2140 if (progressive_score > interlaced_score) {
2143 dct_offset = wrap_y;
2144 uv_dct_offset = wrap_c;
2179 uint8_t *dest_y, *dest_cb, *dest_cr;
2181 dest_y = s->
dest[0];
2182 dest_cb = s->
dest[1];
2183 dest_cr = s->
dest[2];
2207 int progressive_score, interlaced_score;
2210 progressive_score = s->
mecc.
ildct_cmp[0](
s, dest_y, ptr_y, wrap_y, 8) +
2216 progressive_score -= 400;
2218 if (progressive_score > 0) {
2225 if (progressive_score > interlaced_score) {
2228 dct_offset = wrap_y;
2229 uv_dct_offset = wrap_c;
2240 dest_y + dct_offset, wrap_y);
2242 dest_y + dct_offset + 8, wrap_y);
2252 dest_cb + uv_dct_offset, wrap_c);
2254 dest_cr + uv_dct_offset, wrap_c);
2265 if (s->
mecc.
sad[1](
NULL, ptr_y + dct_offset, dest_y + dct_offset,
2266 wrap_y, 8) < 20 * s->
qscale)
2268 if (s->
mecc.
sad[1](
NULL, ptr_y + dct_offset + 8, dest_y + dct_offset + 8,
2269 wrap_y, 8) < 20 * s->
qscale)
2277 dest_cb + uv_dct_offset,
2278 wrap_c, 8) < 20 * s->
qscale)
2281 dest_cr + uv_dct_offset,
2282 wrap_c, 8) < 20 * s->
qscale)
2309 memcpy(orig[0], s->
block[0],
sizeof(int16_t) * 64 * mb_block_count);
2315 for (i = 0; i < mb_block_count; i++) {
2330 for (i = 0; i < mb_block_count; i++) {
2340 for (i = 0; i < 4; i++)
2343 for (i = 4; i < mb_block_count; i++)
2347 for (i = 0; i < mb_block_count; i++) {
2360 for (i=6; i<12; i++) {
2369 for (i = 0; i < mb_block_count; i++) {
2372 for (j = 63; j > 0; j--) {
2462 memcpy(d->
mv, s->
mv, 2*4*2*
sizeof(
int));
2500 int *dmin,
int *next_block,
int motion_x,
int motion_y)
2508 s->
pb= pb[*next_block];
2510 s->
pb2 = pb2 [*next_block];
2511 s->
tex_pb= tex_pb[*next_block];
2515 memcpy(dest_backup, s->
dest,
sizeof(s->
dest));
2538 memcpy(s->
dest, dest_backup,
sizeof(s->
dest));
2556 else if(w==8 && h==8)
2646 for(mb_x=0; mb_x < s->
mb_width; mb_x++) {
2654 (((unsigned) sum * sum) >> 8) + 500 + 128) >> 8;
2691 bytestream_put_le32(&ptr, offset);
2692 bytestream_put_byte(&ptr, s->
qscale);
2693 bytestream_put_byte(&ptr, gobn);
2694 bytestream_put_le16(&ptr, mba);
2695 bytestream_put_byte(&ptr, pred_x);
2696 bytestream_put_byte(&ptr, pred_y);
2698 bytestream_put_byte(&ptr, 0);
2699 bytestream_put_byte(&ptr, 0);
2734 int new_buffer_size = 0;
2829 for(mb_x=0; mb_x < s->
mb_width; mb_x++) {
2863 int current_packet_size, is_gob_start;
2869 if(s->
start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2878 if(s->
mb_x==0 && s->
mb_y!=0) is_gob_start=1;
2883 if(s->
mb_x==0 && s->
mb_y!=0) is_gob_start=1;
2903 current_packet_size=0;
2961 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2968 backup_s.pb2= s->
pb2;
2969 backup_s.tex_pb= s->
tex_pb;
2978 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2979 &dmin, &next_block, s->
mv[0][0][0], s->
mv[0][0][1]);
2990 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2991 &dmin, &next_block, 0, 0);
2999 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
3000 &dmin, &next_block, s->
mv[0][0][0], s->
mv[0][0][1]);
3010 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
3011 &dmin, &next_block, 0, 0);
3019 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
3020 &dmin, &next_block, s->
mv[0][0][0], s->
mv[0][0][1]);
3028 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
3029 &dmin, &next_block, s->
mv[1][0][0], s->
mv[1][0][1]);
3039 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
3040 &dmin, &next_block, 0, 0);
3051 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
3052 &dmin, &next_block, 0, 0);
3063 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
3064 &dmin, &next_block, 0, 0);
3070 for(dir=0; dir<2; dir++){
3077 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
3078 &dmin, &next_block, 0, 0);
3086 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
3087 &dmin, &next_block, 0, 0);
3098 const int last_qp= backup_s.qscale;
3102 static const int dquant_tab[4]={-1,1,-2,2};
3111 s->
mv[0][0][0] = best_s.
mv[0][0][0];
3112 s->
mv[0][0][1] = best_s.
mv[0][0][1];
3113 s->
mv[1][0][0] = best_s.
mv[1][0][0];
3114 s->
mv[1][0][1] = best_s.
mv[1][0][1];
3117 for(; qpi<4; qpi++){
3118 int dquant= dquant_tab[qpi];
3130 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER , pb, pb2, tex_pb,
3131 &dmin, &next_block, s->
mv[mvdir][0][0], s->
mv[mvdir][0][1]);
3147 backup_s.dquant = 0;
3151 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
3152 &dmin, &next_block, mx, my);
3155 backup_s.dquant = 0;
3159 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
3160 &dmin, &next_block, 0, 0);
3168 memcpy(s->
mv, best_s.
mv,
sizeof(s->
mv));
3189 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER , pb, pb2, tex_pb,
3190 &dmin, &next_block, mx, my);
3208 s->
pb2= backup_s.pb2;
3212 avpriv_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
3213 s->
tex_pb= backup_s.tex_pb;
3230 int motion_x = 0, motion_y = 0;
3238 motion_x= s->
mv[0][0][0] = 0;
3239 motion_y= s->
mv[0][0][1] = 0;
3326 for(dir=0; dir<2; dir++){
3400 #define MERGE(field) dst->field += src->field; src->field=0
3427 for(i=0; i<64; i++){
3541 for(i=1; i<context_count; i++){
3571 for(i=1; i<context_count; i++){
3584 av_dlog(s,
"Scene change detected, encoding as I Frame %"PRId64
" %"PRId64
"\n",
3628 for(dir=0; dir<2; dir++){
3677 static const uint8_t y[32]={13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13};
3678 static const uint8_t c[32]={14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14};
3748 for(i=1; i<context_count; i++){
3752 for(i=1; i<context_count; i++){
3767 for(i=0; i<64; i++){
3768 int level= block[i];
3774 if(level<0) level=0;
3778 if(level>0) level=0;
3787 int qscale,
int *overflow){
3789 const uint16_t *matrix;
3793 unsigned int threshold1, threshold2;
3805 int coeff_count[64];
3806 int qmul, qadd, start_i, last_non_zero, i,
dc;
3817 qadd= ((qscale-1)|1)*8;
3834 block[0] = (block[0] + (q >> 1)) / q;
3860 threshold2= (threshold1<<1);
3862 for(i=63; i>=start_i; i--) {
3863 const int j = scantable[i];
3864 int level = block[j] * qmat[j];
3866 if(((
unsigned)(level+threshold1))>threshold2){
3872 for(i=start_i; i<=last_non_zero; i++) {
3873 const int j = scantable[i];
3874 int level = block[j] * qmat[j];
3878 if(((
unsigned)(level+threshold1))>threshold2){
3882 coeff[1][i]= level-1;
3886 coeff[0][i]= -
level;
3887 coeff[1][i]= -level+1;
3890 coeff_count[i]=
FFMIN(level, 2);
3894 coeff[0][i]= (level>>31)|1;
3901 if(last_non_zero < start_i){
3902 memset(block + start_i, 0, (64-start_i)*
sizeof(int16_t));
3903 return last_non_zero;
3906 score_tab[start_i]= 0;
3907 survivor[0]= start_i;
3910 for(i=start_i; i<=last_non_zero; i++){
3911 int level_index, j, zero_distortion;
3912 int dct_coeff=
FFABS(block[ scantable[i] ]);
3913 int best_score=256*256*256*120;
3917 zero_distortion= dct_coeff*dct_coeff;
3919 for(level_index=0; level_index < coeff_count[i]; level_index++){
3921 int level= coeff[level_index][i];
3922 const int alevel=
FFABS(level);
3928 unquant_coeff= alevel*qmul + qadd;
3931 unquant_coeff = alevel * matrix[j] * 8;
3935 unquant_coeff = (int)( alevel * qscale * matrix[j]) >> 3;
3936 unquant_coeff = (unquant_coeff - 1) | 1;
3938 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) matrix[j])) >> 4;
3939 unquant_coeff = (unquant_coeff - 1) | 1;
3944 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3946 if((level&(~127)) == 0){
3947 for(j=survivor_count-1; j>=0; j--){
3948 int run= i - survivor[j];
3950 score += score_tab[i-
run];
3952 if(score < best_score){
3955 level_tab[i+1]= level-64;
3960 for(j=survivor_count-1; j>=0; j--){
3961 int run= i - survivor[j];
3963 score += score_tab[i-
run];
3964 if(score < last_score){
3967 last_level= level-64;
3973 distortion += esc_length*
lambda;
3974 for(j=survivor_count-1; j>=0; j--){
3975 int run= i - survivor[j];
3976 int score= distortion + score_tab[i-
run];
3978 if(score < best_score){
3981 level_tab[i+1]= level-64;
3986 for(j=survivor_count-1; j>=0; j--){
3987 int run= i - survivor[j];
3988 int score= distortion + score_tab[i-
run];
3989 if(score < last_score){
3992 last_level= level-64;
4000 score_tab[i+1]= best_score;
4003 if(last_non_zero <= 27){
4004 for(; survivor_count; survivor_count--){
4005 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
4009 for(; survivor_count; survivor_count--){
4010 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
4015 survivor[ survivor_count++ ]= i+1;
4019 last_score= 256*256*256*120;
4020 for(i= survivor[0]; i<=last_non_zero + 1; i++){
4021 int score= score_tab[i];
4022 if(i) score += lambda*2;
4024 if(score < last_score){
4027 last_level= level_tab[i];
4028 last_run= run_tab[i];
4035 dc=
FFABS(block[0]);
4036 last_non_zero= last_i - 1;
4037 memset(block + start_i, 0, (64-start_i)*
sizeof(int16_t));
4039 if(last_non_zero < start_i)
4040 return last_non_zero;
4042 if(last_non_zero == 0 && start_i == 0){
4044 int best_score= dc *
dc;
4046 for(i=0; i<coeff_count[0]; i++){
4047 int level= coeff[i][0];
4048 int alevel=
FFABS(level);
4049 int unquant_coeff, score, distortion;
4052 unquant_coeff= (alevel*qmul + qadd)>>3;
4054 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) matrix[0])) >> 4;
4055 unquant_coeff = (unquant_coeff - 1) | 1;
4057 unquant_coeff = (unquant_coeff + 4) >> 3;
4058 unquant_coeff<<= 3 + 3;
4060 distortion= (unquant_coeff -
dc) * (unquant_coeff - dc);
4063 else score= distortion + esc_length*
lambda;
4065 if(score < best_score){
4067 best_level= level - 64;
4070 block[0]= best_level;
4072 if(best_level == 0)
return -1;
4073 else return last_non_zero;
4079 block[ perm_scantable[last_non_zero] ]= last_level;
4082 for(; i>start_i; i -= run_tab[i] + 1){
4083 block[ perm_scantable[i-1] ]= level_tab[i];
4086 return last_non_zero;
4101 int perm_index= perm[
index];
4102 if(i==0) s*= sqrt(0.5);
4103 if(j==0) s*= sqrt(0.5);
4104 basis[perm_index][8*x +
y]=
lrintf(s * cos((
M_PI/8.0)*i*(x+0.5)) * cos((
M_PI/8.0)*j*(y+0.5)));
4123 int qmul, qadd, start_i, last_non_zero, i,
dc;
4127 int rle_index,
run, q = 1, sum;
4130 static int after_last=0;
4131 static int to_zero=0;
4132 static int from_zero=0;
4135 static int messed_sign=0;
4138 if(basis[0][0] == 0)
4180 for(i=0; i<64; i++){
4187 for(i=0; i<64; i++){
4192 w=
FFABS(weight[i]) + qns*one;
4193 w= 15 + (48*qns*one + w/2)/w;
4208 for(i=start_i; i<=last_non_zero; i++){
4209 int j= perm_scantable[i];
4210 const int level= block[j];
4214 if(level<0) coeff= qmul*level - qadd;
4215 else coeff= qmul*level + qadd;
4216 run_tab[rle_index++]=
run;
4225 if(last_non_zero>0){
4236 int run2, best_unquant_change=0, analyze_gradient;
4242 if(analyze_gradient){
4246 for(i=0; i<64; i++){
4262 const int level= block[0];
4263 int change, old_coeff;
4269 for(change=-1; change<=1; change+=2){
4270 int new_level= level + change;
4271 int score, new_coeff;
4273 new_coeff= q*new_level;
4274 if(new_coeff >= 2048 || new_coeff < 0)
4278 new_coeff - old_coeff);
4279 if(score<best_score){
4282 best_change= change;
4283 best_unquant_change= new_coeff - old_coeff;
4290 run2= run_tab[rle_index++];
4294 for(i=start_i; i<64; i++){
4295 int j= perm_scantable[i];
4296 const int level= block[j];
4297 int change, old_coeff;
4303 if(level<0) old_coeff= qmul*level - qadd;
4304 else old_coeff= qmul*level + qadd;
4305 run2= run_tab[rle_index++];
4312 for(change=-1; change<=1; change+=2){
4313 int new_level= level + change;
4314 int score, new_coeff, unquant_change;
4321 if(new_level<0) new_coeff= qmul*new_level - qadd;
4322 else new_coeff= qmul*new_level + qadd;
4323 if(new_coeff >= 2048 || new_coeff <= -2048)
4328 if(level < 63 && level > -63){
4329 if(i < last_non_zero)
4339 if(analyze_gradient){
4340 int g= d1[ scantable[i] ];
4341 if(g && (g^new_level) >= 0)
4345 if(i < last_non_zero){
4346 int next_i= i + run2 + 1;
4347 int next_level= block[ perm_scantable[next_i] ] + 64;
4349 if(next_level&(~127))
4352 if(next_i < last_non_zero)
4372 if(i < last_non_zero){
4373 int next_i= i + run2 + 1;
4374 int next_level= block[ perm_scantable[next_i] ] + 64;
4376 if(next_level&(~127))
4379 if(next_i < last_non_zero)
4398 unquant_change= new_coeff - old_coeff;
4399 av_assert2((score < 100*lambda && score > -100*lambda) || lambda==0);
4403 if(score<best_score){
4406 best_change= change;
4407 best_unquant_change= unquant_change;
4411 prev_level= level + 64;
4412 if(prev_level&(~127))
4425 int j= perm_scantable[ best_coeff ];
4427 block[j] += best_change;
4429 if(best_coeff > last_non_zero){
4430 last_non_zero= best_coeff;
4438 if(block[j] - best_change){
4439 if(
FFABS(block[j]) >
FFABS(block[j] - best_change)){
4451 for(; last_non_zero>=start_i; last_non_zero--){
4452 if(block[perm_scantable[last_non_zero]])
4458 if(256*256*256*64 % count == 0){
4459 av_log(s->
avctx,
AV_LOG_DEBUG,
"after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero,
raise, lower, messed_sign, s->
mb_x, s->
mb_y, s->
picture_number);
4464 for(i=start_i; i<=last_non_zero; i++){
4465 int j= perm_scantable[i];
4466 const int level= block[j];
4469 run_tab[rle_index++]=
run;
4482 if(last_non_zero>0){
4488 return last_non_zero;
4493 int qscale,
int *overflow)
4495 int i, j,
level, last_non_zero, q, start_i;
4500 unsigned int threshold1, threshold2;
4519 block[0] = (block[0] + (q >> 1)) / q;
4531 threshold2= (threshold1<<1);
4532 for(i=63;i>=start_i;i--) {
4534 level = block[j] * qmat[j];
4536 if(((
unsigned)(level+threshold1))>threshold2){
4543 for(i=start_i; i<=last_non_zero; i++) {
4545 level = block[j] * qmat[j];
4549 if(((
unsigned)(level+threshold1))>threshold2){
4567 scantable, last_non_zero);
4569 return last_non_zero;
4572 #define OFFSET(x) offsetof(MpegEncContext, x)
4573 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
4577 {
"mb_info",
"emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size",
OFFSET(
mb_info),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX,
VE },
4634 .
name =
"msmpeg4v2",
4643 .priv_class = &msmpeg4v2_class,
4658 .priv_class = &msmpeg4v3_class,
4673 .priv_class = &wmv1_class,
const uint16_t ff_mpeg1_default_non_intra_matrix[64]
av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
void ff_h261_reorder_mb_index(MpegEncContext *s)
int(* try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
av_cold void ff_mpeg1_encode_init(MpegEncContext *s)
int chroma_elim_threshold
void ff_jpeg_fdct_islow_10(int16_t *data)
static const AVOption h263_options[]
int frame_bits
bits used for the current frame
int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
av_cold int ff_dct_encode_init(MpegEncContext *s)
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
const struct AVCodec * codec
int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase)
av_cold void ff_rate_control_uninit(MpegEncContext *s)
#define FF_MPV_FLAG_STRICT_GOP
void ff_init_block_index(MpegEncContext *s)
void ff_estimate_b_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
qpel_mc_func avg_qpel_pixels_tab[2][16]
#define MAX_PICTURE_COUNT
me_cmp_func frame_skip_cmp[6]
#define CANDIDATE_MB_TYPE_SKIPPED
static int shift(int a, int b)
#define CONFIG_WMV2_ENCODER
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
void av_free_packet(AVPacket *pkt)
Free a packet.
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride)
int time_increment_bits
< number of bits to represent the fractional part of time (encoder only)
void ff_h263_encode_picture_header(MpegEncContext *s, int picture_number)
This structure describes decoded (raw) audio or video data.
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
Allocate a Picture.
int16_t(* p_mv_table)[2]
MV table (1MV per MB) p-frame encoding.
int mpeg_quant
0-> h263 quant 1-> mpeg quant
uint8_t * rd_scratchpad
scratchpad for rate distortion mb decision
void ff_fdct_ifast(int16_t *data)
ptrdiff_t const GLvoid * data
uint8_t * fcode_tab
smallest fcode needed for each MV
int start_mb_y
start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
#define MV_TYPE_FIELD
2 vectors, one per field
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
uint8_t * mb_mean
Table for MB luminance.
uint64_t error[AV_NUM_DATA_POINTERS]
error
#define CODEC_FLAG_PASS2
Use internal 2pass ratecontrol in second pass mode.
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG1 & B-frame MPEG4
int pre_pass
= 1 for the pre pass
#define CONFIG_RV10_ENCODER
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
#define FF_MPV_FLAG_SKIP_RD
#define FF_MPV_GENERIC_CLASS(name)
AVFrame * tmp_frames[MAX_B_FRAMES+2]
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static void put_bits(Jpeg2000EncoderContext *s, int val, int n)
put n times val bit
attribute_deprecated int rc_qmod_freq
#define AV_LOG_WARNING
Something somehow does not look correct.
qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16]
void(* shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
#define CANDIDATE_MB_TYPE_INTER_I
#define LIBAVUTIL_VERSION_INT
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
#define CODEC_FLAG_PASS1
Use internal 2pass ratecontrol in first pass mode.
void ff_h263_encode_init(MpegEncContext *s)
AVFrame * coded_frame
the picture in the bitstream
int end_mb_y
end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
static av_cold int init(AVCodecContext *avctx)
void ff_init_qscale_tab(MpegEncContext *s)
init s->current_picture.qscale_table from s->lambda_table
uint16_t * mb_var
Table for MB variances.
uint16_t(* q_chroma_intra_matrix16)[2][64]
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
Permute an 8x8 block.
uint16_t chroma_intra_matrix[64]
static int estimate_qp(MpegEncContext *s, int dry_run)
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
int16_t(*[3] ac_val)[16]
used for mpeg4 AC prediction, all 3 arrays must be continuous
void(* add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
#define FF_MPV_COMMON_OPTS
enum AVColorRange color_range
MPEG vs JPEG YUV range.
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
#define CANDIDATE_MB_TYPE_BIDIR
av_cold void ff_h263dsp_init(H263DSPContext *ctx)
void(* rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb)
attribute_deprecated int lmax
void ff_get_2pass_fcode(MpegEncContext *s)
#define CONFIG_MJPEG_ENCODER
void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length)
Copy the content of src to the bitstream.
int obmc
overlapped block motion compensation
void avpriv_align_put_bits(PutBitContext *s)
Pad the bitstream with zeros up to the next byte boundary.
void ff_mpeg1_clean_buffers(MpegEncContext *s)
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
int ff_h261_get_picture_format(int width, int height)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced p-frame encoding.
static int select_input_picture(MpegEncContext *s)
int min_qcoeff
minimum encodable coefficient
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride)
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional FF_INPUT_BUFFER_PADDING_SIZE at the end w...
int ildct_cmp
interlaced DCT comparison function
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
#define FF_ARRAY_ELEMS(a)
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic?ac->func_descr_generic:ac->func_descr)
av_cold int ff_mjpeg_encode_init(MpegEncContext *s)
int mpv_flags
flags set by private options
int intra_quant_bias
intra quantizer bias
static const AVClass h263_class
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
uint8_t * intra_ac_vlc_length
int padding_bug_score
used to detect the VERY common padding bug in MPEG4
const uint16_t ff_h263_format[8][2]
#define UNI_AC_ENC_INDEX(run, level)
int mb_num
number of MBs of a picture
void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb, ScanTable *intra_scantable, uint16_t luma_intra_matrix[64], uint16_t chroma_intra_matrix[64])
av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx)
int ff_msmpeg4_encode_init(MpegEncContext *s)
int frame_skip_cmp
frame skip comparison function
static void clip_coeffs(MpegEncContext *s, int16_t *block, int last_index)
An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of structures with info about macroblo...
static void write_mb_info(MpegEncContext *s)
int time_base
time in seconds of last I,P,S Frame
uint8_t(* mv_penalty)[MAX_DMV *2+1]
amount of bits needed to encode a MV
int h263_aic
Advanded INTRA Coding (AIC)
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode b-frame encoding.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
int16_t * ff_h263_pred_motion(MpegEncContext *s, int block, int dir, int *px, int *py)
int encoding
true if we are encoding (vs decoding)
uint64_t vbv_delay
VBV delay coded in the last frame (in periods of a 27 MHz clock).
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
#define CODEC_FLAG_QPEL
Use qpel MC.
int scenechange_threshold
scene change detection threshold 0 is default, larger means fewer detected scene changes.
uint32_t ff_square_tab[512]
#define CONFIG_RV20_ENCODER
void ff_mpeg4_merge_partitions(MpegEncContext *s)
static int mb_var_thread(AVCodecContext *c, void *arg)
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
static int load_input_picture(MpegEncContext *s, const AVFrame *pic_arg)
#define FF_MPV_FLAG_CBP_RD
int skipdct
skip dct and code zero residual
float rc_buffer_aggressivity
void ff_mpeg4_clean_buffers(MpegEncContext *s)
#define CODEC_FLAG_PSNR
error[?] variables will be set during encoding.
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
#define CANDIDATE_MB_TYPE_INTER
float p_masking
p block masking (0-> disabled)
int picture_in_gop_number
0-> first pic in gop, ...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
int alt_inter_vlc
alternative inter vlc
int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
int64_t time
time of current frame
static int encode_picture(MpegEncContext *s, int picture_number)
av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
int bit_rate_tolerance
number of bits the bitstream is allowed to diverge from the reference.
#define MV_DIRECT
bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4) ...
attribute_deprecated const char * rc_eq
attribute_deprecated float rc_buffer_aggressivity
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Picture ** input_picture
next pictures on display order for encoding
#define CANDIDATE_MB_TYPE_INTER4V
void(* get_pixels)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
PutBitContext pb2
used for data partitioned VOPs
enum OutputFormat out_format
output format
#define CANDIDATE_MB_TYPE_FORWARD_I
uint16_t(* dct_offset)[64]
void ff_dct_encode_init_x86(MpegEncContext *s)
static av_cold int end(AVCodecContext *avctx)
uint16_t * chroma_intra_matrix
custom intra quantization matrix Code outside libavcodec should access this field using av_codec_g/se...
void ff_mpv_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int dir, uint8_t **ref_picture, op_pixels_func(*pix_op)[4], qpel_mc_func(*qpix_op)[16])
static void mpv_encode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for encoding.
Multithreading support functions.
int pre_dia_size
ME prepass diamond size & shape.
static const AVOption h263p_options[]
static int get_sae(uint8_t *src, int ref, int stride)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
int misc_bits
cbp, mb_type
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
int no_rounding
apply no rounding to motion compensation (MPEG4, msmpeg4, ...) for b-frames rounding mode is always 0...
#define CANDIDATE_MB_TYPE_BACKWARD_I
int(* q_chroma_intra_matrix)[64]
int me_cmp
motion estimation comparison function
void ff_mpv_decode_mb(MpegEncContext *s, int16_t block[12][64])
void ff_mpeg4_encode_video_packet_header(MpegEncContext *s)
Picture current_picture
copy of the current picture structure.
int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of video.
#define CONFIG_MPEG1VIDEO_ENCODER
#define PICT_BOTTOM_FIELD
static double av_q2d(AVRational a)
Convert rational to double.
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
static void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
const uint16_t ff_aanscales[64]
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV422P and setting color_...
uint16_t pp_time
time distance between the last 2 p,s,i frames
#define AV_LOG_VERBOSE
Detailed information.
const uint8_t * scantable
int flags2
AVCodecContext.flags2.
av_cold void ff_mpv_idct_init(MpegEncContext *s)
int mb_height
number of MBs horizontally & vertically
static void rebase_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Rebase the bit writer onto a reallocated buffer.
float lumi_masking
luminance masking (0-> disabled)
char * stats_out
pass1 encoding statistics output buffer
int max_qcoeff
maximum encodable coefficient
high precision timer, useful to profile code
static void update_noise_reduction(MpegEncContext *s)
#define FF_MPV_FLAG_QP_RD
#define CODEC_FLAG_AC_PRED
H.263 advanced intra coding / MPEG-4 AC prediction.
void ff_h261_encode_picture_header(MpegEncContext *s, int picture_number)
int dquant
qscale difference to prev qscale
int num_entries
number of RateControlEntries
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & mpeg1 specific
static void ff_update_block_index(MpegEncContext *s)
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
#define ROUNDED_DIV(a, b)
int(* q_inter_matrix)[64]
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
static int get_bits_diff(MpegEncContext *s)
#define CODEC_FLAG_LOOP_FILTER
loop filter
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
int intra_only
if true, only intra pictures are generated
av_cold int ff_mpv_encode_end(AVCodecContext *avctx)
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
int16_t * dc_val[3]
used for mpeg4 DC prediction, all 3 arrays must be continuous
int h263_plus
h263 plus headers
int slice_context_count
number of used thread_contexts
int last_non_b_pict_type
used for mpeg4 gmc b-frames & ratecontrol
int ff_wmv2_encode_picture_header(MpegEncContext *s, int picture_number)
int width
width and height of the video frame
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static uint8_t * put_bits_ptr(PutBitContext *s)
Return the pointer to the byte where the bitstream writer will put the next bit.
int has_b_frames
Size of the frame reordering buffer in the decoder.
int last_dc[3]
last DC values for MPEG1
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
attribute_deprecated float rc_initial_cplx
uint8_t * inter_ac_vlc_last_length
#define FF_MB_DECISION_BITS
chooses the one which needs the fewest bits
#define CODEC_FLAG_INTERLACED_ME
interlaced motion estimation
#define PTRDIFF_SPECIFIER
int mb_skipped
MUST BE SET only during DECODING.
int strict_std_compliance
strictly follow the std (MPEG4, ...)
int partitioned_frame
is current frame partitioned
int frame_skip_threshold
frame skip threshold
av_cold int ff_rate_control_init(MpegEncContext *s)
int me_sub_cmp
subpixel motion estimation comparison function
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int qmax
maximum quantizer
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
static void update_mb_info(MpegEncContext *s, int startcode)
void ff_write_pass1_stats(MpegEncContext *s)
int unrestricted_mv
mv can point outside of the coded picture
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int last_lambda_for[5]
last lambda for a specific pict type
static int sse_mb(MpegEncContext *s)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
uint8_t * edge_emu_buffer
temporary buffer for if MVs point to out-of-frame data
static int dct_quantize_trellis_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
uint8_t * intra_chroma_ac_vlc_length
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
int h263_slice_structured
void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
#define CODEC_FLAG_QSCALE
Use fixed qscale.
uint64_t error[AV_NUM_DATA_POINTERS]
int rc_max_rate
maximum bitrate
int64_t av_gcd(int64_t a, int64_t b)
Return the greatest common divisor of a and b.
MpegvideoEncDSPContext mpvencdsp
const char * name
Name of the codec implementation.
int quarter_sample
1->qpel, 0->half pel ME/MC
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits)
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Shrink the already allocated side data buffer.
int low_delay
no reordering needed / has no b-frames
qpel_mc_func put_qpel_pixels_tab[2][16]
void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
Deallocate a picture.
uint8_t *[2][2] b_field_select_table
static const uint8_t offset[127][2]
void ff_mpv_common_end(MpegEncContext *s)
Libavcodec external API header.
#define CODEC_FLAG_LOW_DELAY
Force low delay.
int flags
A combination of AV_PKT_FLAG values.
static int put_bits_count(PutBitContext *s)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
static void frame_end(MpegEncContext *s)
int resync_mb_x
x position of last resync marker
int rc_buffer_size
decoder bitstream buffer size
void ff_clean_h263_qscales(MpegEncContext *s)
modify qscale so that encoding is actually possible in h263 (limit difference to -2..2)
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
static int estimate_best_b_count(MpegEncContext *s)
int intra_dc_precision
precision of the intra DC coefficient - 8
int me_penalty_compensation
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
common internal API header
#define FF_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
uint8_t * intra_ac_vlc_last_length
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_width, int mb_block_count)
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
void ff_h263_loop_filter(MpegEncContext *s)
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
int bit_rate
the average bitrate
enum AVPictureType pict_type
Picture type of the frame.
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
int ff_h263_get_gob_height(MpegEncContext *s)
Get the GOB height based on picture height.
int display_picture_number
picture number in display order
uint16_t(* q_inter_matrix16)[2][64]
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
int fixed_qscale
fixed qscale if non zero
void ff_clean_mpeg4_qscales(MpegEncContext *s)
modify mb_type & qscale so that encoding is actually possible in mpeg4
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV420P and setting color_...
int me_method
ME algorithm.
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
int umvplus
== H263+ && unrestricted_mv
Picture new_picture
copy of the source picture structure for encoding.
int intra_quant_bias
bias for the quantizer
int width
picture width / height.
int(* pix_sum)(uint8_t *pix, int line_size)
int16_t(*[2] motion_val)[2]
Picture * current_picture_ptr
pointer to the current picture
float rc_max_available_vbv_use
Ratecontrol attempt to use, at maximum, of what can be used without an underflow. ...
float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run)
uint16_t(* q_intra_matrix16)[2][64]
identical to the above but for MMX & these are not permutated, second 64 entries are bias ...
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
#define CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
void ff_wmv2_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
int block_last_index[12]
last non zero coefficient in block
static int dct_quantize_refine(MpegEncContext *s, int16_t *block, int16_t *weight, int16_t *orig, int n, int qscale)
uint8_t idct_permutation[64]
IDCT input permutation.
const int16_t ff_mpeg4_default_non_intra_matrix[64]
int mb_decision
macroblock decision mode
#define CONFIG_FLV_ENCODER
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride)
attribute_deprecated float rc_qsquish
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
int ac_esc_length
num of bits needed to encode the longest esc
preferred ID for MPEG-1/2 video decoding
static void set_put_bits_buffer_size(PutBitContext *s, int size)
Change the end of the buffer.
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
int block_index[6]
index to current MB in block based arrays with edges
the normal 2^n-1 "JPEG" YUV ranges
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
int inter_quant_bias
inter quantizer bias
static uint8_t default_fcode_tab[MAX_MV *2+1]
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
static void build_basis(uint8_t *perm)
#define MV_TYPE_16X16
1 vector for the whole mb
int frame_skip_factor
frame skip factor
int first_slice_line
used in mpeg4 too to handle resync markers
uint16_t * mc_mb_var
Table for motion compensated MB variances.
void ff_flv_encode_picture_header(MpegEncContext *s, int picture_number)
#define FF_COMPLIANCE_UNOFFICIAL
Allow unofficial extensions.
const uint8_t *const ff_mpeg2_dc_scale_table[4]
int coded_picture_number
picture number in bitstream order
#define AV_LOG_INFO
Standard information.
uint16_t inter_matrix[64]
uint64_t error[AV_NUM_DATA_POINTERS]
error
void ff_jpeg_fdct_islow_8(int16_t *data)
void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
struct MpegEncContext * thread_context[MAX_THREADS]
#define CONFIG_MSMPEG4_ENCODER
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
#define CODEC_FLAG_NORMALIZE_AQP
void ff_faandct(int16_t *data)
double buffer_index
amount of bits in the video/audio buffer
void ff_free_picture_tables(Picture *pic)
void ff_h263_update_motion_val(MpegEncContext *s)
int h263_flv
use flv h263 header
static const AVClass h263p_class
ptrdiff_t linesize
line size, in bytes, may be different from width
char * av_strdup(const char *s)
Duplicate the string s.
static av_const unsigned int ff_sqrt(unsigned int a)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
void ff_convert_matrix(MpegEncContext *s, int(*qmat)[64], uint16_t(*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
const uint16_t ff_inv_aanscales[64]
void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
int frame_bits
number of bits used for the previously encoded frame
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
uint8_t * intra_chroma_ac_vlc_last_length
void(* fdct)(int16_t *block)
main external API structure.
ScanTable intra_scantable
int pre_me
prepass for motion estimation
int qmin
minimum quantizer
int height
picture size. must be a multiple of 16
static void write_slice_end(MpegEncContext *s)
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
static void denoise_dct_c(MpegEncContext *s, int16_t *block)
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
static int frame_start(MpegEncContext *s)
float spatial_cplx_masking
spatial complexity masking (0-> disabled)
void ff_fix_long_p_mvs(MpegEncContext *s)
Picture * picture
main picture buffer
int data_partitioning
data partitioning flag from header
uint8_t * inter_ac_vlc_length
uint16_t * intra_matrix
custom intra quantization matrix
void ff_h263_encode_gob_header(MpegEncContext *s, int mb_line)
Encode a group of blocks header.
Describe the class of an AVClass context structure.
int stuffing_bits
bits used for stuffing
op_pixels_func put_no_rnd_pixels_tab[4][4]
Halfpel motion compensation with no rounding (a+b)>>1.
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced b-frame encoding.
int(* pix_norm1)(uint8_t *pix, int line_size)
int64_t mc_mb_var_sum
motion compensated MB variance for current frame
#define CANDIDATE_MB_TYPE_DIRECT
#define FF_DEFAULT_QUANT_BIAS
static void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type)
const uint16_t ff_mpeg1_default_intra_matrix[256]
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
const uint8_t ff_zigzag_direct[64]
av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx)
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
int mb_info
interval for outputting info about mb offsets as side data
void ff_set_mpeg4_time(MpegEncContext *s)
static void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type)
av_cold void ff_mjpeg_encode_close(MpegEncContext *s)
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
int frame_skip_exp
frame skip exponent
#define CANDIDATE_MB_TYPE_BIDIR_I
void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
const int16_t ff_mpeg4_default_intra_matrix[64]
int f_code
forward MV resolution
int ff_pre_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
#define CANDIDATE_MB_TYPE_DIRECT0
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my)
int ff_mjpeg_encode_stuffing(MpegEncContext *s)
#define CODEC_FLAG_CLOSED_GOP
static int weight(int i, int blen, int offset)
uint16_t * inter_matrix
custom inter quantization matrix
int max_b_frames
max number of b-frames for encoding
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix)
int bit_rate
wanted bit rate
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
int last_mv_dir
last mv_dir, used for b frame encoding
int av_frame_get_buffer(AVFrame *frame, int align)
Allocate new buffer(s) for audio or video data.
int h263_pred
use mpeg4/h263 ac/dc predictions
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode b-frame encoding.
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
float dark_masking
darkness masking (0-> disabled)
void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[8][64], int motion_x, int motion_y)
static int64_t pts
Global timestamp for the audio frames.
float temporal_cplx_masking
temporary complexity masking (0-> disabled)
int ff_init_me(MpegEncContext *s)
uint8_t *[2] p_field_select_table
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode b-frame encoding.
AAN (Arai, Agui and Nakajima) (I)DCT tables.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
#define FF_MB_DECISION_SIMPLE
uses mb_cmp
int64_t mc_mb_var_sum_temp
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode b-frame encoding.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> dc
int noise_reduction
noise reduction strength
static int estimate_motion_thread(AVCodecContext *c, void *arg)
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
struct AVCodecContext * avctx
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
PutBitContext pb
bit output
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref)
av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
#define CONFIG_MPEG4_ENCODER
#define CONFIG_MPEG2VIDEO_ENCODER
GLint GLenum GLboolean GLsizei stride
static void update_qscale(MpegEncContext *s)
int mb_cmp
macroblock comparison function (not supported yet)
int quantizer_noise_shaping
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg)
#define FF_DISABLE_DEPRECATION_WARNINGS
#define FF_MB_DECISION_RD
rate distortion
#define CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
static void flush_put_bits(PutBitContext *s)
Pad the end of the output stream with zeros.
#define CANDIDATE_MB_TYPE_FORWARD
#define CODEC_FLAG_GRAY
Only decode/encode grayscale.
const uint8_t ff_h263_chroma_qscale_table[32]
#define CONFIG_H261_ENCODER
void ff_h263_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
int adaptive_quant
use adaptive quantization
static int16_t basis[64][64]
attribute_deprecated float border_masking
void ff_msmpeg4_encode_ext_header(MpegEncContext *s)
static int score_tab[256]
Picture last_picture
copy of the previous picture structure.
Picture * last_picture_ptr
pointer to the previous picture.
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of PIX_FMT_YUV444P and setting color_...
float rc_qsquish
ratecontrol qmin qmax limiting method 0-> clipping, 1-> use a nice continuous function to limit qscal...
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
int ff_vbv_update(MpegEncContext *s, int frame_size)
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
static void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
Initialize the PutBitContext s.
#define CONFIG_H263_ENCODER
attribute_deprecated float rc_qmod_amp
#define CONFIG_H263P_ENCODER
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (h263)
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
AVCodec ff_msmpeg4v3_encoder
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
int trellis
trellis RD quantization
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
void ff_mpeg4_stuffing(PutBitContext *pbc)
add mpeg4 stuffing bits (01...1)
#define CANDIDATE_MB_TYPE_INTRA
int16_t(* blocks)[12][64]
int slices
Number of slices.
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic_arg, int *got_packet)
const AVOption ff_mpv_generic_options[]
void ff_mpeg1_encode_slice_header(MpegEncContext *s)
int last_bits
temp var used for calculating the above vars
void ff_mpeg4_init_partitions(MpegEncContext *s)
av_cold int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
void(* diff_pixels)(int16_t *block, const uint8_t *s1, const uint8_t *s2, int stride)
int dia_size
ME diamond size & shape.
int b_sensitivity
Adjust sensitivity of b_frame_strategy 1.
int(* execute)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size)
The codec may call this to execute several independent things.
#define FF_ENABLE_DEPRECATION_WARNINGS
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src)
void(* draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides)
int ff_get_best_fcode(MpegEncContext *s, int16_t(*mv_table)[2], int type)
int resync_mb_y
y position of last resync marker
struct AVCodecInternal * internal
Private context used for internal data.
int16_t(* block)[64]
points to one of the following blocks
void ff_mjpeg_encode_mb(MpegEncContext *s, int16_t block[12][64])
void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number)
PutBitContext tex_pb
used for data partitioned VOPs
Picture next_picture
copy of the next picture structure.
int key_frame
1 -> keyframe, 0-> not
attribute_deprecated int error_rate
static void set_frame_distances(MpegEncContext *s)
static const double coeff[2][5]
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
void ff_fix_long_mvs(MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
Picture ** reordered_input_picture
pointer to the next pictures in codedorder for encoding
static const struct twinvq_data tab
unsigned int byte_buffer_size
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
static int encode_thread(AVCodecContext *c, void *arg)
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
int flags
AVCodecContext.flags (HQ, MV4, ...)
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void ff_mpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
#define LOCAL_ALIGNED_16(t, v,...)
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src)
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src)
int ff_mpeg4_encode_picture_header(MpegEncContext *s, int picture_number)
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_DMV *2+1]
int inter_quant_bias
bias for the quantizer
av_cold void ff_qpeldsp_init(QpelDSPContext *c)
attribute_deprecated int lmin
#define CANDIDATE_MB_TYPE_BACKWARD
int me_method
Motion estimation algorithm used for video coding.
uint8_t * av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, int size)
Allocate new information of a packet.
int ff_find_unused_picture(MpegEncContext *s, int shared)
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
#define MV_TYPE_8X8
4 vectors (h263, mpeg4 4MV)
int rc_min_rate
minimum bitrate
int b_code
backward MV resolution for B Frames (mpeg4)
#define CODEC_FLAG_4MV
4 MV per MB allowed / advanced prediction for H.263.
void ff_h261_encode_init(MpegEncContext *s)
int64_t mb_var_sum
sum of MB variance for current frame
static int encode_frame(AVCodecContext *c, AVFrame *frame)
AVPixelFormat
Pixel format.
This structure stores compressed data.
uint8_t * byte_buffer
temporary buffer used for encoders to store their bitstream
int strict_std_compliance
strictly follow the standard (MPEG4, ...).
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
int ff_check_alignment(void)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)
int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b)
Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
#define AV_NOPTS_VALUE
Undefined timestamp value.
static void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2], int *dmin, int *next_block, int motion_x, int motion_y)
unsigned int lambda
lagrange multipler used in rate distortion
AVCodec ff_msmpeg4v2_encoder
uint16_t pb_time
time distance between the last b and p,s,i frame
enum idct_permutation_type perm_type
static const uint8_t sp5x_quant_table[20][64]
int next_lambda
next lambda used for retrying to encode a frame