134 int8_t intra4x4_pred_mode_cache[5 * 8];
135 int8_t (*intra4x4_pred_mode);
149 int block_offset[2 * (16 * 3)];
152 #define FULLPEL_MODE 1 153 #define HALFPEL_MODE 2 154 #define THIRDPEL_MODE 3 155 #define PREDICT_MODE 4 167 0 + 0 * 4, 1 + 0 * 4, 2 + 0 * 4, 2 + 1 * 4,
168 2 + 2 * 4, 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4,
169 0 + 1 * 4, 0 + 2 * 4, 1 + 1 * 4, 1 + 2 * 4,
170 0 + 3 * 4, 1 + 3 * 4, 2 + 3 * 4, 3 + 3 * 4,
174 0 * 16 + 0 * 64, 1 * 16 + 0 * 64, 2 * 16 + 0 * 64, 0 * 16 + 2 * 64,
175 3 * 16 + 0 * 64, 0 * 16 + 1 * 64, 1 * 16 + 1 * 64, 2 * 16 + 1 * 64,
176 1 * 16 + 2 * 64, 2 * 16 + 2 * 64, 3 * 16 + 2 * 64, 0 * 16 + 3 * 64,
177 3 * 16 + 1 * 64, 1 * 16 + 3 * 64, 2 * 16 + 3 * 64, 3 * 16 + 3 * 64,
183 { 0, 2 }, { 1, 1 }, { 2, 0 },
184 { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 },
185 { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 },
186 { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 },
187 { 2, 4 }, { 3, 3 }, { 4, 2 },
193 { { 2, -1, -1, -1, -1 }, { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 },
194 { 2, 1, -1, -1, -1 }, { 1, 2, -1, -1, -1 }, { 1, 2, -1, -1, -1 } },
195 { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 },
196 { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } },
197 { { 2, 0, -1, -1, -1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 },
198 { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } },
199 { { 2, 0, -1, -1, -1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 },
200 { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } },
201 { { 0, 2, -1, -1, -1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 },
202 { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } },
203 { { 0, 2, -1, -1, -1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 },
204 { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } },
207 static const struct {
211 { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 },
212 { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } },
213 { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 },
214 { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } }
218 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718,
219 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873,
220 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683,
221 61694, 68745, 77615, 89113, 100253, 109366, 126635, 141533
234 for (i = 0; i < 4; i++) {
235 const int z0 = 13 * (input[4 * i + 0] + input[4 * i + 2]);
236 const int z1 = 13 * (input[4 * i + 0] - input[4 * i + 2]);
237 const int z2 = 7 * input[4 * i + 1] - 17 * input[4 * i + 3];
238 const int z3 = 17 * input[4 * i + 1] + 7 * input[4 * i + 3];
240 temp[4 * i + 0] = z0 + z3;
241 temp[4 * i + 1] = z1 + z2;
242 temp[4 * i + 2] = z1 - z2;
243 temp[4 * i + 3] = z0 - z3;
246 for (i = 0; i < 4; i++) {
247 const int offset = x_offset[
i];
248 const int z0 = 13 * (temp[4 * 0 +
i] + temp[4 * 2 +
i]);
249 const int z1 = 13 * (temp[4 * 0 +
i] - temp[4 * 2 +
i]);
250 const int z2 = 7 * temp[4 * 1 +
i] - 17 * temp[4 * 3 +
i];
251 const int z3 = 17 * temp[4 * 1 +
i] + 7 * temp[4 * 3 +
i];
253 output[stride * 0 +
offset] = (
int)((z0 + z3) * qmul + 0x80000) >> 20;
254 output[stride * 2 +
offset] = (
int)((z1 + z2) * qmul + 0x80000) >> 20;
255 output[stride * 8 +
offset] = (
int)((z1 - z2) * qmul + 0x80000) >> 20;
256 output[stride * 10 +
offset] = (
int)((z0 - z3) * qmul + 0x80000) >> 20;
268 dc = 13 * 13 * (dc == 1 ? 1538
U* block[0]
269 : qmul * (block[0] >> 3) / 2);
273 for (i = 0; i < 4; i++) {
274 const int z0 = 13 * (block[0 + 4 *
i] + block[2 + 4 *
i]);
275 const int z1 = 13 * (block[0 + 4 *
i] - block[2 + 4 *
i]);
276 const int z2 = 7 * block[1 + 4 *
i] - 17 * block[3 + 4 *
i];
277 const int z3 = 17 * block[1 + 4 *
i] + 7 * block[3 + 4 *
i];
279 block[0 + 4 *
i] = z0 + z3;
280 block[1 + 4 *
i] = z1 + z2;
281 block[2 + 4 *
i] = z1 - z2;
282 block[3 + 4 *
i] = z0 - z3;
285 for (i = 0; i < 4; i++) {
286 const unsigned z0 = 13 * (block[i + 4 * 0] + block[i + 4 * 2]);
287 const unsigned z1 = 13 * (block[i + 4 * 0] - block[i + 4 * 2]);
288 const unsigned z2 = 7 * block[i + 4 * 1] - 17 * block[i + 4 * 3];
289 const unsigned z3 = 17 * block[i + 4 * 1] + 7 * block[i + 4 * 3];
290 const int rr = (dc + 0x80000
u);
292 dst[i + stride * 0] = av_clip_uint8(dst[i + stride * 0] + ((
int)((z0 + z3) * qmul + rr) >> 20));
293 dst[i + stride * 1] = av_clip_uint8(dst[i + stride * 1] + ((
int)((z1 + z2) * qmul + rr) >> 20));
294 dst[i + stride * 2] = av_clip_uint8(dst[i + stride * 2] + ((
int)((z1 - z2) * qmul + rr) >> 20));
295 dst[i + stride * 3] = av_clip_uint8(dst[i + stride * 3] + ((
int)((z0 - z3) * qmul + rr) >> 20));
298 memset(block, 0, 16 *
sizeof(int16_t));
304 static const uint8_t *
const scan_patterns[4] = {
310 const int intra = 3 * type >> 2;
313 for (limit = (16 >> intra); index < 16; index = limit, limit += 8) {
318 sign = (vlc & 1) ? 0 : -1;
325 }
else if (vlc < 4) {
330 level = (vlc + 9 >> 2) - run;
338 level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1)));
341 level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0)));
346 if ((index += run) >= limit)
349 block[scan[
index]] = (level ^ sign) - sign;
362 int i,
int list,
int part_width)
364 const int topright_ref = s->
ref_cache[list][i - 8 + part_width];
367 *C = s->
mv_cache[list][i - 8 + part_width];
383 int part_width,
int list,
384 int ref,
int *
const mx,
int *
const my)
386 const int index8 =
scan8[n];
387 const int top_ref = s->
ref_cache[list][index8 - 8];
388 const int left_ref = s->
ref_cache[list][index8 - 1];
389 const int16_t *
const A = s->
mv_cache[list][index8 - 1];
390 const int16_t *
const B = s->
mv_cache[list][index8 - 8];
392 int diagonal_ref, match_count;
403 match_count = (diagonal_ref ==
ref) + (top_ref == ref) + (left_ref ==
ref);
404 if (match_count > 1) {
407 }
else if (match_count == 1) {
408 if (left_ref == ref) {
411 }
else if (top_ref == ref) {
433 int mx,
int my,
int dxy,
434 int thirdpel,
int dir,
int avg)
439 int blocksize = 2 - (width >> 3);
446 if (mx < 0 || mx >= s->
h_edge_pos - width - 1 ||
449 mx = av_clip(mx, -16, s->
h_edge_pos - width + 15);
450 my = av_clip(my, -16, s->
v_edge_pos - height + 15);
455 src = pic->
f->
data[0] + mx + my * linesize;
460 width + 1, height + 1,
474 mx = mx + (mx < (int) x) >> 1;
475 my = my + (my < (int) y) >> 1;
477 height = height >> 1;
480 for (i = 1; i < 3; i++) {
481 dest = s->
cur_pic->
f->
data[
i] + (x >> 1) + (y >> 1) * uvlinesize;
482 src = pic->
f->
data[
i] + mx + my * uvlinesize;
486 uvlinesize, uvlinesize,
487 width + 1, height + 1,
509 int i, j, k, mx, my, dx, dy, x, y;
510 const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1);
511 const int part_height = 16 >> ((unsigned)(size + 1) / 3);
512 const int extra_width = (mode ==
PREDICT_MODE) ? -16 * 6 : 0;
513 const int h_edge_pos = 6 * (s->
h_edge_pos - part_width) - extra_width;
514 const int v_edge_pos = 6 * (s->
v_edge_pos - part_height) - extra_width;
516 for (i = 0; i < 16; i += part_height)
517 for (j = 0; j < 16; j += part_width) {
518 const int b_xy = (4 * s->
mb_x + (j >> 2)) +
521 x = 16 * s->
mb_x + j;
522 y = 16 * s->
mb_y +
i;
523 k = (j >> 2 & 1) + (i >> 1 & 2) +
524 (j >> 1 & 4) + (i & 8);
546 mx = av_clip(mx, extra_width - 6 * x, h_edge_pos - 6 * x);
547 my = av_clip(my, extra_width - 6 * y, v_edge_pos - 6 * y);
556 if (dx != (int16_t)dx || dy != (int16_t)dy) {
565 mx = (mx + 1 >> 1) + dx;
566 my = (my + 1 >> 1) + dy;
567 fx = (unsigned)(mx + 0x30000) / 3 - 0x10000;
568 fy = (unsigned)(my + 0x30000) / 3 - 0x10000;
569 dxy = (mx - 3 * fx) + 4 * (my - 3 * fy);
572 fx, fy, dxy, 1, dir, avg);
576 mx = (unsigned)(mx + 1 + 0x30000) / 3 + dx - 0x10000;
577 my = (unsigned)(my + 1 + 0x30000) / 3 + dy - 0x10000;
578 dxy = (mx & 1) + 2 * (my & 1);
581 mx >> 1, my >> 1, dxy, 0, dir, avg);
585 mx = (unsigned)(mx + 3 + 0x60000) / 6 + dx - 0x10000;
586 my = (unsigned)(my + 3 + 0x60000) / 6 + dy - 0x10000;
589 mx, my, 0, 0, dir, avg);
598 if (part_height == 8 && i < 8) {
601 if (part_width == 8 && j < 8)
604 if (part_width == 8 && j < 8)
606 if (part_width == 4 || part_height == 4)
612 part_width >> 2, part_height >> 2, s->
b_stride,
620 int mb_type,
const int *block_offset,
625 for (i = 0; i < 16; i++)
627 uint8_t *
const ptr = dest_y + block_offset[
i];
636 const int *block_offset,
644 for (i = 0; i < 16; i++) {
645 uint8_t *
const ptr = dest_y + block_offset[
i];
653 if (!topright_avail) {
654 tr = ptr[3 - linesize] * 0x01010101
u;
657 topright = ptr + 4 - linesize;
675 const int mb_x = s->
mb_x;
676 const int mb_y = s->
mb_y;
677 const int mb_xy = s->
mb_xy;
679 uint8_t *dest_y, *dest_cb, *dest_cr;
680 int linesize, uvlinesize;
683 const int block_h = 16 >> 1;
688 dest_y = s->
cur_pic->
f->
data[0] + (mb_x + mb_y * linesize) * 16;
689 dest_cb = s->
cur_pic->
f->
data[1] + mb_x * 8 + mb_y * uvlinesize * block_h;
690 dest_cr = s->
cur_pic->
f->
data[2] + mb_x * 8 + mb_y * uvlinesize * block_h;
693 s->
vdsp.
prefetch(dest_cb + (s->
mb_x & 7) * uvlinesize + 64, dest_cr - dest_cb, 2);
705 uint8_t *dest[2] = { dest_cb, dest_cr };
710 for (j = 1; j < 3; j++) {
711 for (i = j * 16; i < j * 16 + 4; i++)
713 uint8_t *
const ptr = dest[j - 1] + block_offset[
i];
723 int i, j, k, m, dir,
mode;
727 const int mb_xy = s->
mb_xy;
754 }
else if (mb_type < 8) {
772 for (m = 0; m < 2; m++) {
774 for (i = 0; i < 4; i++)
778 for (i = 0; i < 4; i++)
784 4 * 2 *
sizeof(int16_t));
820 for (i = 0; i < 4; i++)
822 0, 4 * 2 *
sizeof(int16_t));
828 for (i = 0; i < 4; i++)
830 0, 4 * 2 *
sizeof(int16_t));
835 }
else if (mb_type == 8 || mb_type == 33) {
843 for (i = 0; i < 4; i++)
859 for (i = 0; i < 16; i += 2) {
864 "luma prediction:%"PRIu32
"\n", vlc);
872 left[2] =
svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]];
874 if (left[1] == -1 || left[2] == -1) {
880 for (i = 0; i < 4; i++)
885 i4x4[4] = i4x4_cache[7 + 8 * 3];
886 i4x4[5] = i4x4_cache[7 + 8 * 2];
887 i4x4[6] = i4x4_cache[7 + 8 * 1];
897 for (i = 0; i < 4; i++)
907 dir = (dir >> 1) ^ 3 * (dir & 1) ^ 1;
920 for (i = 0; i < 4; i++)
922 0, 4 * 2 *
sizeof(int16_t));
924 for (i = 0; i < 4; i++)
926 0, 4 * 2 *
sizeof(int16_t));
960 "error while decoding intra luma dc\n");
969 for (i = 0; i < 4; i++)
970 if ((cbp & (1 << i))) {
971 for (j = 0; j < 4; j++) {
972 k = index ? (1 * (j & 1) + 2 * (i & 1) +
973 2 * (j & 2) + 4 * (i & 2))
979 "error while decoding block\n");
986 for (i = 1; i < 3; ++
i)
989 "error while decoding chroma dc block\n");
994 for (i = 1; i < 3; i++) {
995 for (j = 0; j < 4; j++) {
1001 "error while decoding chroma ac block\n");
1023 const int mb_xy = s->
mb_xy;
1029 if (((header & 0x9F) != 1 && (header & 0x9F) != 2) || (header & 0x60) == 0) {
1034 int slice_bits, slice_bytes, slice_length;
1035 int length = header >> 5 & 3;
1038 slice_bits = slice_length * 8;
1039 slice_bytes = slice_length + length - 1;
1072 if ((header & 0x9F) == 2) {
1099 -1, 4 *
sizeof(int8_t));
1101 -1, 8 *
sizeof(int8_t) * s->
mb_x);
1117 const int max_qp = 51;
1119 for (q = 0; q < max_qp + 1; q++) {
1122 for (x = 0; x < 16; x++)
1132 unsigned char *extradata;
1133 unsigned char *extradata_end;
1135 int marker_found = 0;
1171 extradata = (
unsigned char *)avctx->
extradata;
1175 if (!memcmp(extradata,
"SEQH", 4)) {
1186 int frame_size_code;
1187 int unk0, unk1, unk2, unk3, unk4;
1190 size =
AV_RB32(&extradata[4]);
1191 if (size > extradata_end - extradata - 8) {
1198 frame_size_code =
get_bits(&gb, 3);
1199 switch (frame_size_code) {
1252 unk0, unk1, unk2, unk3, unk4);
1269 unsigned long buf_len = watermark_width *
1270 watermark_height * 4;
1274 if (watermark_height <= 0 ||
1275 (uint64_t)watermark_width * 4 > UINT_MAX / watermark_height) {
1286 watermark_width, watermark_height);
1288 "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n",
1289 u1, u2, u3, u4, offset);
1290 if (uncompress(buf, &buf_len, extradata + 8 + offset,
1291 size - offset) != Z_OK) {
1293 "could not uncompress watermark logo\n");
1306 "this svq3 file contains watermark which need zlib support compiled in\n");
1331 for (x = 0; x < s->
mb_width; x++) {
1348 for (i = 0; i < 2; i++) {
1362 const int b4_stride = s->
mb_width * 4 + 1;
1363 const int b4_array_size = b4_stride * s->
mb_height * 4;
1374 for (i = 0; i < 2; i++) {
1409 int buf_size = avpkt->
size;
1415 if (buf_size == 0) {
1432 memcpy(s->
buf, avpkt->
data, buf_size);
1460 for (i = 0; i < 16; i++) {
1464 for (i = 0; i < 16; i++) {
1501 "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n",
1537 for (m = 0; m < 2; m++) {
1539 for (i = 0; i < 4; i++) {
1541 for (j = -1; j < 4; j++)
1574 "error while decoding MB %d %d\n", s->
mb_x, s->
mb_y);
1578 if (mb_type != 0 || s->
cbp)
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
discard all frames except keyframes
void(* h264_chroma_dc_dequant_idct)(int16_t *block, int qmul)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static int shift(int a, int b)
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
This structure describes decoded (raw) audio or video data.
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static int svq3_decode_block(GetBitContext *gb, int16_t *block, int index, const int type)
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
static av_cold int init(AVCodecContext *avctx)
static av_always_inline void svq3_pred_motion(const SVQ3Context *s, int n, int part_width, int list, int ref, int *const mx, int *const my)
Get the predicted MV.
#define avpriv_request_sample(...)
enum AVColorRange color_range
MPEG vs JPEG YUV range.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id, const int bit_depth, int chroma_format_idc)
Set the intra prediction function pointers.
void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_malloc but the buffer has additional AV_INPUT_BUFFER_PADDING_SIZE at the end w...
const uint8_t ff_h264_quant_rem6[QP_MAX_NUM+1]
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last, int y, int h, int picture_structure, int first_field, int low_delay)
Draw a horizontal band if supported.
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Macro definitions for various function/variable attributes.
static int svq3_mc_dir(SVQ3Context *s, int size, int mode, int dir, int avg)
enum AVDiscard skip_frame
Skip decoding for selected frames.
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
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...
#define MB_TYPE_INTRA16x16
const uint8_t ff_h264_dequant4_coeff_init[6][3]
static const uint8_t luma_dc_zigzag_scan[16]
static av_always_inline void hl_decode_mb_idct_luma(SVQ3Context *s, int mb_type, const int *block_offset, int linesize, uint8_t *dest_y)
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.
int block_offset[2 *(16 *3)]
#define FF_DEBUG_PICT_INFO
static const struct @135 svq3_dct_tables[2][16]
static av_always_inline int svq3_fetch_diagonal_mv(const SVQ3Context *s, const int16_t **C, int i, int list, int part_width)
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
#define u(width, name, range_min, range_max)
const uint8_t ff_h264_chroma_dc_scan[4]
Context for storing H.264 prediction functions.
void(* pred8x8[4+3+4])(uint8_t *src, ptrdiff_t stride)
Public header for CRC hash function implementation.
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
static int get_bits_count(const GetBitContext *s)
const IMbInfo ff_h264_i_mb_type_info[26]
char av_get_picture_type_char(enum AVPictureType pict_type)
Return a single letter to describe the given picture type pict_type.
AVBufferRef * ref_index_buf[2]
const uint8_t ff_h264_golomb_to_inter_cbp[48]
int ff_h264_check_intra4x4_pred_mode(int8_t *pred_mode_cache, void *logctx, int top_samples_available, int left_samples_available)
Check if the top & left blocks are available if needed and change the dc mode so it only uses the ava...
static const uint8_t header[24]
enum AVPictureType slice_type
void(* pred4x4[9+3+3])(uint8_t *src, const uint8_t *topright, ptrdiff_t stride)
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
int prev_frame_num_offset
static int svq3_decode_mb(SVQ3Context *s, unsigned int mb_type)
static int get_bits_left(GetBitContext *gb)
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int has_b_frames
Size of the frame reordering buffer in the decoder.
int8_t * intra4x4_pred_mode
uint8_t * edge_emu_buffer
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
av_cold void ff_tpeldsp_init(TpelDSPContext *c)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
const uint8_t ff_zigzag_scan[16+1]
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
int flags
AV_CODEC_FLAG_*.
static int get_interleaved_se_golomb(GetBitContext *gb)
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
unsigned int left_samples_available
const char * name
Name of the codec implementation.
const uint8_t ff_h264_golomb_to_pict_type[5]
static const uint8_t offset[127][2]
unsigned int topright_samples_available
Sorenson Vector Quantizer #1 (SVQ1) video codec.
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
useful rectangle filling function
AVBufferRef * motion_val_buf[2]
tpel_mc_func avg_tpel_pixels_tab[11]
#define AV_CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
Context for storing H.264 DSP functions.
uint32_t dequant4_coeff[QP_MAX_NUM+1][16]
enum AVPictureType pict_type
Picture type of the frame.
int16_t(*[2] motion_val)[2]
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
int width
picture width / height.
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
static av_cold int svq3_decode_init(AVCodecContext *avctx)
tpel_mc_func put_tpel_pixels_tab[11]
Thirdpel motion compensation with rounding (a + b + 1) >> 1.
H.264 / AVC / MPEG-4 part10 codec.
static void fill_rectangle(int x, int y, int w, int h)
the normal 2^n-1 "JPEG" YUV ranges
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static const int8_t mv[256][2]
#define AV_LOG_INFO
Standard information.
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM+1]
uint8_t * data
The data buffer.
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
static const uint8_t scan8[16 *3+3]
void(* pred16x16[4+3+2])(uint8_t *src, ptrdiff_t stride)
AVBufferRef * av_buffer_allocz(int size)
Same as av_buffer_alloc(), except the returned buffer will be initialized to zero.
AVBufferRef * mb_type_buf
static unsigned int get_bits1(GetBitContext *s)
const uint8_t ff_h264_golomb_to_intra4x4_cbp[48]
static void skip_bits1(GetBitContext *s)
enum AVPictureType pict_type
const uint8_t ff_h264_quant_div6[QP_MAX_NUM+1]
static void skip_bits(GetBitContext *s, int n)
static av_always_inline uint32_t pack16to32(unsigned a, unsigned b)
static void svq3_mc_dir_part(SVQ3Context *s, int x, int y, int width, int height, int mx, int my, int dxy, int thirdpel, int dir, int avg)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
static void init_dequant4_coeff_table(SVQ3Context *s)
static int svq3_decode_end(AVCodecContext *avctx)
int8_t ref_cache[2][5 *8]
static const uint8_t svq3_pred_0[25][2]
static enum AVPixelFormat pix_fmts[]
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;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);return NULL;} return ac;} 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;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->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);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> dc
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
static void free_picture(AVCodecContext *avctx, SVQ3Frame *pic)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
A reference to a data buffer.
discard all non reference
static av_always_inline void hl_decode_mb_predict_luma(SVQ3Context *s, int mb_type, const int *block_offset, int linesize, uint8_t *dest_y)
uint8_t non_zero_count_cache[15 *8]
common internal api header.
static int get_buffer(AVCodecContext *avctx, SVQ3Frame *pic)
static int ref[MAX_W *MAX_W]
int ff_h264_check_intra_pred_mode(void *logctx, int top_samples_available, int left_samples_available, int mode, int is_chroma)
Check if the top & left blocks are available if needed and change the dc mode so it only uses the ava...
int16_t mb_luma_dc[3][16 *2]
static void svq3_luma_dc_dequant_idct_c(int16_t *output, int16_t *input, int qp)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
static const uint32_t svq3_dequant_coeff[32]
unsigned int top_samples_available
static void hl_decode_mb(SVQ3Context *s)
static int svq3_decode_slice_header(AVCodecContext *avctx)
#define PART_NOT_AVAILABLE
int key_frame
1 -> keyframe, 0-> not
static const uint8_t svq3_scan[16]
int8_t intra4x4_pred_mode_cache[5 *8]
av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, const int chroma_format_idc)
static const int8_t svq3_pred_1[6][6][5]
static void svq3_add_idct_c(uint8_t *dst, int16_t *block, int stride, int qp, int dc)
int frame_number
Frame counter, set by libavcodec.
static int skip_1stop_8data_bits(GetBitContext *gb)
#define FFSWAP(type, a, b)
static unsigned get_interleaved_ue_golomb(GetBitContext *gb)
AVPixelFormat
Pixel format.
This structure stores compressed data.
static int svq3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
mode
Use these values in ebur128_init (or'ed).
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
int16_t mv_cache[2][5 *8][2]