133 int channel_offsets[4];
166 #define HALF_FLOAT_MIN_BIASED_EXP_AS_SINGLE_FP_EXP 0x38000000 170 #define HALF_FLOAT_MAX_BIASED_EXP_AS_SINGLE_FP_EXP 0x47800000 173 #define FLOAT_MAX_BIASED_EXP (0xFF << 23) 175 #define HALF_FLOAT_MAX_BIASED_EXP (0x1F << 10) 186 unsigned int sign = (
unsigned int) (hf >> 15);
187 unsigned int mantissa = (
unsigned int) (hf & ((1 << 10) - 1));
191 if (exp == HALF_FLOAT_MAX_BIASED_EXP) {
197 mantissa = (1 << 23) - 1;
198 }
else if (exp == 0x0) {
204 while ((mantissa & (1 << 10))) {
211 mantissa &= ((1 << 10) - 1);
222 f.
i = (sign << 31) | exp | mantissa;
230 unsigned long dest_len = uncompressed_size;
232 if (uncompress(td->
tmp, &dest_len, src, compressed_size) != Z_OK ||
233 dest_len != uncompressed_size)
248 const int8_t *
s =
src;
249 int ssize = compressed_size;
250 int dsize = uncompressed_size;
260 if ((dsize -= count) < 0 ||
261 (ssize -= count + 1) < 0)
269 if ((dsize -= count) < 0 ||
291 #define USHORT_RANGE (1 << 16) 292 #define BITMAP_SIZE (1 << 13) 299 if ((i == 0) || (bitmap[i >> 3] & (1 << (i & 7))))
304 memset(lut + k, 0, (USHORT_RANGE - k) * 2);
309 static void apply_lut(
const uint16_t *lut, uint16_t *dst,
int dsize)
313 for (i = 0; i < dsize; ++
i)
314 dst[i] = lut[dst[i]];
317 #define HUF_ENCBITS 16 // literal (value) bit length 318 #define HUF_DECBITS 14 // decoding bit size (>= 8) 320 #define HUF_ENCSIZE ((1 << HUF_ENCBITS) + 1) // encoding table size 321 #define HUF_DECSIZE (1 << HUF_DECBITS) // decoding table size 322 #define HUF_DECMASK (HUF_DECSIZE - 1) 332 uint64_t
c, n[59] = { 0 };
339 for (i = 58; i > 0; --
i) {
340 uint64_t nc = ((c + n[
i]) >> 1);
349 hcode[
i] = l | (n[l]++ << 6);
353 #define SHORT_ZEROCODE_RUN 59 354 #define LONG_ZEROCODE_RUN 63 355 #define SHORTEST_LONG_RUN (2 + LONG_ZEROCODE_RUN - SHORT_ZEROCODE_RUN) 356 #define LONGEST_LONG_RUN (255 + SHORTEST_LONG_RUN) 366 for (; im <= iM; im++) {
372 if (im + zerun > iM + 1)
382 if (im + zerun > iM + 1)
401 for (; im <= iM; im++) {
402 uint64_t
c = hcode[
im] >> 6;
403 int i, l = hcode[
im] & 63;
423 for (i = 1 << (
HUF_DECBITS - l); i > 0; i--, pl++) {
424 if (pl->
len || pl->
p)
435 #define get_char(c, lc, gb) \ 437 c = (c << 8) | bytestream2_get_byte(gb); \ 441 #define get_code(po, rlc, c, lc, gb, out, oe, outb) \ 445 get_char(c, lc, gb); \ 450 if (out + cs > oe || out == outb) \ 451 return AVERROR_INVALIDDATA; \ 457 } else if (out < oe) { \ 460 return AVERROR_INVALIDDATA; \ 466 int rlc,
int no, uint16_t *
out)
469 uint16_t *outb =
out;
470 uint16_t *oe = out + no;
491 for (j = 0; j < pl.
lit; j++) {
492 int l = hcode[pl.
p[j]] & 63;
498 if ((hcode[pl.
p[j]] >> 6) ==
499 ((c >> (lc - l)) & ((1LL << l) - 1))) {
501 get_code(pl.
p[j], rlc, c, lc, gb, out, oe, outb);
520 if (pl.
len && lc >= pl.
len) {
528 if (out - outb != no)
534 uint16_t *dst,
int dst_size)
542 src_size = bytestream2_get_le32(gb);
543 im = bytestream2_get_le32(gb);
544 iM = bytestream2_get_le32(gb);
546 nBits = bytestream2_get_le32(gb);
556 if (!freq || !hdec) {
571 ret =
huf_decode(freq, hdec, gb, nBits, iM, dst_size, dst);
584 static inline void wdec14(uint16_t l, uint16_t
h, uint16_t *
a, uint16_t *
b)
589 int ai = ls + (hi & 1) + (hi >> 1);
591 int16_t bs = ai - hi;
598 #define A_OFFSET (1 << (NBITS - 1)) 599 #define MOD_MASK ((1 << NBITS) - 1) 601 static inline void wdec16(uint16_t l, uint16_t
h, uint16_t *
a, uint16_t *
b)
612 int ny,
int oy, uint16_t mx)
614 int w14 = (mx < (1 << 14));
615 int n = (nx > ny) ? ny : nx;
628 uint16_t *ey = in + oy * (ny - p2);
629 uint16_t i00, i01, i10, i11;
635 for (; py <= ey; py += oy2) {
637 uint16_t *ex = py + ox * (nx - p2);
639 for (; px <= ex; px += ox2) {
640 uint16_t *p01 = px + ox1;
641 uint16_t *p10 = px + oy1;
642 uint16_t *p11 = p10 + ox1;
645 wdec14(*px, *p10, &i00, &i10);
646 wdec14(*p01, *p11, &i01, &i11);
647 wdec14(i00, i01, px, p01);
648 wdec14(i10, i11, p10, p11);
650 wdec16(*px, *p10, &i00, &i10);
651 wdec16(*p01, *p11, &i01, &i11);
652 wdec16(i00, i01, px, p01);
653 wdec16(i10, i11, p10, p11);
658 uint16_t *p10 = px + oy1;
661 wdec14(*px, *p10, &i00, p10);
663 wdec16(*px, *p10, &i00, p10);
671 uint16_t *ex = py + ox * (nx - p2);
673 for (; px <= ex; px += ox2) {
674 uint16_t *p01 = px + ox1;
677 wdec14(*px, *p01, &i00, p01);
679 wdec16(*px, *p01, &i00, p01);
694 uint16_t maxval, min_non_zero, max_non_zero;
696 uint16_t *
tmp = (uint16_t *)td->
tmp;
715 min_non_zero = bytestream2_get_le16(&gb);
716 max_non_zero = bytestream2_get_le16(&gb);
722 if (min_non_zero <= max_non_zero)
724 max_non_zero - min_non_zero + 1);
742 for (j = 0; j < pixel_half_size; j++)
744 td->
xsize * pixel_half_size, maxval);
745 ptr += td->
xsize * td->
ysize * pixel_half_size;
761 tmp_offset += pixel_half_size;
764 s->bbdsp.bswap16_buf(
out,
in, td->
xsize * pixel_half_size);
766 memcpy(
out,
in, td->
xsize * 2 * pixel_half_size);
776 int compressed_size,
int uncompressed_size,
779 unsigned long dest_len, expected_len = 0;
794 dest_len = expected_len;
796 if (uncompress(td->
tmp, &dest_len, src, compressed_size) != Z_OK) {
798 }
else if (dest_len != expected_len) {
803 for (i = 0; i < td->
ysize; i++)
812 ptr[1] = ptr[0] + td->
xsize;
813 ptr[2] = ptr[1] + td->
xsize;
814 in = ptr[2] + td->
xsize;
816 for (j = 0; j < td->
xsize; ++j) {
817 uint32_t
diff = ((unsigned)*(ptr[0]++) << 24) |
818 (*(ptr[1]++) << 16) |
821 bytestream_put_le32(&out, pixel);
826 ptr[1] = ptr[0] + td->
xsize;
827 in = ptr[1] + td->
xsize;
828 for (j = 0; j < td->
xsize; j++) {
829 uint32_t
diff = (*(ptr[0]++) << 8) | *(ptr[1]++);
832 bytestream_put_le16(&out, pixel);
837 ptr[1] = ptr[0] + s->
xdelta;
838 ptr[2] = ptr[1] + s->
xdelta;
839 ptr[3] = ptr[2] + s->
xdelta;
842 for (j = 0; j < s->
xdelta; ++j) {
843 uint32_t
diff = ((uint32_t)*(ptr[0]++) << 24) |
844 (*(ptr[1]++) << 16) |
845 (*(ptr[2]++) << 8 ) |
848 bytestream_put_le32(&out, pixel);
861 unsigned short shift = (b[ 2] >> 2) & 15;
862 unsigned short bias = (0x20 <<
shift);
865 s[ 0] = (b[0] << 8) | b[1];
867 s[ 4] = s[ 0] + ((((b[ 2] << 4) | (b[ 3] >> 4)) & 0x3f) <<
shift) - bias;
868 s[ 8] = s[ 4] + ((((b[ 3] << 2) | (b[ 4] >> 6)) & 0x3f) <<
shift) - bias;
869 s[12] = s[ 8] + ((b[ 4] & 0x3f) << shift) - bias;
871 s[ 1] = s[ 0] + ((b[ 5] >> 2) << shift) - bias;
872 s[ 5] = s[ 4] + ((((b[ 5] << 4) | (b[ 6] >> 4)) & 0x3f) <<
shift) - bias;
873 s[ 9] = s[ 8] + ((((b[ 6] << 2) | (b[ 7] >> 6)) & 0x3f) <<
shift) - bias;
874 s[13] = s[12] + ((b[ 7] & 0x3f) << shift) - bias;
876 s[ 2] = s[ 1] + ((b[ 8] >> 2) << shift) - bias;
877 s[ 6] = s[ 5] + ((((b[ 8] << 4) | (b[ 9] >> 4)) & 0x3f) <<
shift) - bias;
878 s[10] = s[ 9] + ((((b[ 9] << 2) | (b[10] >> 6)) & 0x3f) <<
shift) - bias;
879 s[14] = s[13] + ((b[10] & 0x3f) << shift) - bias;
881 s[ 3] = s[ 2] + ((b[11] >> 2) << shift) - bias;
882 s[ 7] = s[ 6] + ((((b[11] << 4) | (b[12] >> 4)) & 0x3f) <<
shift) - bias;
883 s[11] = s[10] + ((((b[12] << 2) | (b[13] >> 6)) & 0x3f) <<
shift) - bias;
884 s[15] = s[14] + ((b[13] & 0x3f) << shift) - bias;
886 for (i = 0; i < 16; ++
i) {
898 s[0] = (b[0] << 8) | b[1];
905 for (i = 1; i < 16; i++)
912 const int8_t *sr =
src;
913 int stay_to_uncompress = compressed_size;
914 int nb_b44_block_w, nb_b44_block_h;
915 int index_tl_x, index_tl_y, index_out, index_tmp;
916 uint16_t tmp_buffer[16];
918 int target_channel_offset = 0;
921 nb_b44_block_w = td->
xsize / 4;
922 if ((td->
xsize % 4) != 0)
925 nb_b44_block_h = td->
ysize / 4;
926 if ((td->
ysize % 4) != 0)
931 for (iY = 0; iY < nb_b44_block_h; iY++) {
932 for (iX = 0; iX < nb_b44_block_w; iX++) {
933 if (stay_to_uncompress < 3) {
938 if (src[compressed_size - stay_to_uncompress + 2] == 0xfc) {
941 stay_to_uncompress -= 3;
943 if (stay_to_uncompress < 14) {
949 stay_to_uncompress -= 14;
956 for (y = index_tl_y; y <
FFMIN(index_tl_y + 4, td->
ysize); y++) {
957 for (x = index_tl_x; x <
FFMIN(index_tl_x + 4, td->
xsize); x++) {
959 index_tmp = (y-index_tl_y) * 4 + (x-index_tl_x);
966 target_channel_offset += 2;
968 if (stay_to_uncompress < td->ysize * td->
xsize * 4) {
969 av_log(s,
AV_LOG_ERROR,
"Not enough data for uncompress channel: %d", stay_to_uncompress);
973 for (y = 0; y < td->
ysize; y++) {
978 target_channel_offset += 4;
980 stay_to_uncompress -= td->
ysize * td->
xsize * 4;
988 int jobnr,
int threadnr)
993 const uint8_t *channel_buffer[4] = { 0 };
995 uint64_t line_offset, uncompressed_size;
998 uint64_t
line, col = 0;
999 uint64_t tile_x, tile_y, tile_level_x, tile_level_y;
1002 int axmax = (avctx->
width - (s->
xmax + 1)) * step;
1003 int bxmin = s->
xmin * step;
1005 int c, rgb_channel_count;
1006 float one_gamma = 1.0f / s->
gamma;
1013 if (buf_size < 20 || line_offset > buf_size - 20)
1016 src = buf + line_offset + 20;
1020 tile_level_x =
AV_RL32(src - 12);
1021 tile_level_y =
AV_RL32(src - 8);
1024 if (data_size <= 0 || data_size > buf_size - line_offset - 20)
1027 if (tile_level_x || tile_level_y) {
1041 col < s->xmin || col > s->
xmax)
1057 if (buf_size < 8 || line_offset > buf_size - 8)
1060 src = buf + line_offset + 8;
1067 if (data_size <= 0 || data_size > buf_size - line_offset - 8)
1077 line_offset > buf_size - uncompressed_size)) ||
1079 line_offset > buf_size - data_size))) {
1084 if (data_size < uncompressed_size || s->is_tile) {
1090 if (data_size < uncompressed_size) {
1128 rgb_channel_count = 3;
1131 rgb_channel_count = 1;
1139 int channel_count = s->
channel_offsets[3] >= 0 ? 4 : rgb_channel_count;
1141 channel_buffer[1] = channel_buffer[0];
1142 channel_buffer[2] = channel_buffer[0];
1145 for (c = 0; c < channel_count; c++) {
1147 ptr = p->
data[plane] + line * p->
linesize[plane] + (col * 4);
1149 for (i = 0; i < td->
ysize; i++, ptr += p->
linesize[plane]) {
1153 src = channel_buffer[
c];
1157 memset(ptr_x, 0, bxmin);
1163 if (trc_func && c < 3) {
1164 for (x = 0; x < td->
xsize; x++) {
1165 t.
i = bytestream_get_le32(&src);
1166 t.
f = trc_func(t.
f);
1170 for (x = 0; x < td->
xsize; x++) {
1171 t.
i = bytestream_get_le32(&src);
1172 if (t.
f > 0.0f && c < 3)
1173 t.
f =
powf(t.
f, one_gamma);
1180 for (x = 0; x < td->
xsize; x++) {
1181 *ptr_x++ = s->
gamma_table[bytestream_get_le16(&src)];
1184 for (x = 0; x < td->
xsize; x++) {
1191 memset(ptr_x, 0, axmax);
1206 for (c = 0; c < rgb_channel_count; c++) {
1207 rgb[
c] = channel_buffer[
c];
1210 if (channel_buffer[3])
1211 a = channel_buffer[3];
1213 ptr_x = (uint16_t *) ptr;
1216 memset(ptr_x, 0, bxmin);
1219 for (x = 0; x < td->
xsize; x++) {
1220 for (c = 0; c < rgb_channel_count; c++) {
1221 *ptr_x++ = bytestream_get_le32(&rgb[c]) >> 16;
1224 if (channel_buffer[3])
1225 *ptr_x++ = bytestream_get_le32(&a) >> 16;
1229 memset(ptr_x, 0, axmax);
1234 if (channel_buffer[3])
1255 const char *value_name,
1256 const char *value_type,
1257 unsigned int minimum_length)
1262 !strcmp(s->
gb.
buffer, value_name)) {
1264 s->
gb.
buffer += strlen(value_name) + 1;
1265 if (!strcmp(s->
gb.
buffer, value_type)) {
1266 s->
gb.
buffer += strlen(value_type) + 1;
1267 var_size = bytestream2_get_le32(&s->
gb);
1273 s->
gb.
buffer -= strlen(value_name) + 1;
1275 "Unknown data type %s for header variable %s.\n",
1276 value_type, value_name);
1287 int layer_match = 0;
1289 int dup_channels = 0;
1317 magic_number = bytestream2_get_le32(&s->
gb);
1318 if (magic_number != 20000630) {
1325 version = bytestream2_get_byte(&s->
gb);
1331 flags = bytestream2_get_le24(&s->
gb);
1348 "chlist", 38)) >= 0) {
1360 int channel_index = -1;
1363 if (strcmp(s->
layer,
"") != 0) {
1367 "Channel match layer : %s.\n", ch_gb.
buffer);
1369 if (*ch_gb.
buffer ==
'.')
1374 "Channel doesn't match layer : %s.\n", ch_gb.
buffer);
1402 "Unsupported channel %.256s.\n", ch_gb.
buffer);
1408 bytestream2_get_byte(&ch_gb))
1417 current_pixel_type = bytestream2_get_le32(&ch_gb);
1420 current_pixel_type);
1426 xsub = bytestream2_get_le32(&ch_gb);
1427 ysub = bytestream2_get_le32(&ch_gb);
1429 if (xsub != 1 || ysub != 1) {
1431 "Subsampling %dx%d",
1441 "RGB channels not of the same depth.\n");
1447 }
else if (channel_index >= 0) {
1449 "Multiple channels with index %d.\n", channel_index);
1450 if (++dup_channels > 10) {
1467 if (current_pixel_type ==
EXR_HALF) {
1501 s->
xmin = bytestream2_get_le32(&s->
gb);
1502 s->
ymin = bytestream2_get_le32(&s->
gb);
1503 s->
xmax = bytestream2_get_le32(&s->
gb);
1504 s->
ymax = bytestream2_get_le32(&s->
gb);
1510 "box2i", 34)) >= 0) {
1517 s->
w = bytestream2_get_le32(&s->
gb) + 1;
1518 s->
h = bytestream2_get_le32(&s->
gb) + 1;
1522 "lineOrder", 25)) >= 0) {
1529 line_order = bytestream2_get_byte(&s->
gb);
1531 if (line_order > 2) {
1539 "float", 31)) >= 0) {
1545 sar = bytestream2_get_le32(&s->
gb);
1549 "compression", 29)) >= 0) {
1559 "Found more than one compression attribute.\n");
1563 "tiledesc", 22)) >= 0) {
1568 "Found tile attribute and scanline flags. Exr will be interpreted as scanline.\n");
1573 tileLevel = bytestream2_get_byte(&s->
gb);
1593 "string", 1)) >= 0) {
1610 for (i = 0; i < 2; i++)
1611 while (bytestream2_get_byte(&s->
gb) != 0);
1661 uint64_t start_offset_table;
1662 uint64_t start_next_scanline;
1751 out_line_size = avctx->
width * 4;
1772 if (!s->
is_tile && bytestream2_peek_le64(&s->
gb) == 0) {
1776 start_next_scanline = start_offset_table + nb_blocks * 8;
1779 for (y = 0; y < nb_blocks; y++) {
1781 bytestream2_put_le64(&offset_table_writer, start_next_scanline);
1785 start_next_scanline += (bytestream2_get_le32(&s->
gb) + 8);
1795 for (i = 0; i <
planes; i++) {
1796 ptr = picture->
data[
i];
1797 for (y = 0; y < s->
ymin; y++) {
1798 memset(ptr, 0, out_line_size);
1808 for (i = 0; i <
planes; i++) {
1810 for (y = s->
ymax + 1; y < avctx->
height; y++) {
1811 memset(ptr, 0, out_line_size);
1827 float one_gamma = 1.0
f / s->
gamma;
1840 for (i = 0; i < 65536; ++
i) {
1842 t.
f = trc_func(t.
f);
1846 if (one_gamma > 0.9999
f && one_gamma < 1.0001
f) {
1847 for (i = 0; i < 65536; ++
i) {
1851 for (i = 0; i < 65536; ++
i) {
1857 t.
f =
powf(t.
f, one_gamma);
1890 #define OFFSET(x) offsetof(EXRContext, x) 1891 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM 1893 {
"layer",
"Set the decoding layer",
OFFSET(layer),
1895 {
"gamma",
"Set the float gamma value when decoding",
OFFSET(gamma),
1899 {
"apply_trc",
"color transfer characteristics to apply to EXR linear input",
OFFSET(apply_trc_type),
1901 {
"bt709",
"BT.709", 0,
1903 {
"gamma",
"gamma", 0,
1905 {
"gamma22",
"BT.470 M", 0,
1907 {
"gamma28",
"BT.470 BG", 0,
1909 {
"smpte170m",
"SMPTE 170 M", 0,
1911 {
"smpte240m",
"SMPTE 240 M", 0,
1913 {
"linear",
"Linear", 0,
1917 {
"log_sqrt",
"Log square root", 0,
1919 {
"iec61966_2_4",
"IEC 61966-2-4", 0,
1921 {
"bt1361",
"BT.1361", 0,
1923 {
"iec61966_2_1",
"IEC 61966-2-1", 0,
1925 {
"bt2020_10bit",
"BT.2020 - 10 bit", 0,
1927 {
"bt2020_12bit",
"BT.2020 - 12 bit", 0,
1929 {
"smpte2084",
"SMPTE ST 2084", 0,
1931 {
"smpte428_1",
"SMPTE ST 428-1", 0,
1955 .priv_class = &exr_class,
ITU-R BT2020 for 12-bit system.
int plane
Which of the 4 planes contains the component.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
void * av_realloc(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory.
static int shift(int a, int b)
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
static int decode_header(EXRContext *s, AVFrame *frame)
"Linear transfer characteristics"
static uint16_t reverse_lut(const uint8_t *bitmap, uint16_t *lut)
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
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 av_cold int init(AVCodecContext *avctx)
static av_always_inline float av_int2float(uint32_t i)
Reinterpret a 32-bit integer as a float.
#define AV_PIX_FMT_RGBA64
static int rle_uncompress(EXRContext *ctx, const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
static int pxr24_uncompress(EXRContext *s, const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
static av_always_inline void bytestream2_init_writer(PutByteContext *p, uint8_t *buf, int buf_size)
const char * av_default_item_name(void *ptr)
Return the context name.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
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...
enum ExrPixelType pixel_type
static int decode_block(AVCodecContext *avctx, void *tdata, int jobnr, int threadnr)
#define HALF_FLOAT_MAX_BIASED_EXP
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
AVColorTransferCharacteristic
Color Transfer Characteristic.
void(* predictor)(uint8_t *src, ptrdiff_t size)
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
static void wav_decode(uint16_t *in, int nx, int ox, int ny, int oy, uint16_t mx)
#define AV_PIX_FMT_FLAG_FLOAT
The pixel format contains IEEE-754 floating point values.
#define get_code(po, rlc, c, lc, gb, out, oe, outb)
Multithreading support functions.
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
static int huf_uncompress(GetByteContext *gb, uint16_t *dst, int dst_size)
static int huf_build_dec_table(const uint64_t *hcode, int im, int iM, HufDec *hdecod)
#define get_char(c, lc, gb)
static int get_bits_count(const GetBitContext *s)
static const AVOption options[]
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
bitstream reader API header.
AVDictionary * metadata
metadata.
uint8_t * uncompressed_data
static int huf_decode(const uint64_t *hcode, const HufDec *hdecod, GetByteContext *gb, int nbits, int rlc, int no, uint16_t *out)
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
#define i(width, name, range_min, range_max)
#define FLOAT_MAX_BIASED_EXP
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
ITU-R BT1361 Extended Colour Gamut.
static av_cold int decode_init(AVCodecContext *avctx)
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
enum AVColorTransferCharacteristic apply_trc_type
simple assert() macros that are a bit more flexible than ISO C assert().
enum ExrPixelType pixel_type
const char * name
Name of the codec implementation.
#define LONG_ZEROCODE_RUN
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
int current_channel_offset
EXRThreadData * thread_data
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
static void unpack_3(const uint8_t b[3], uint16_t s[16])
static const struct @315 planes[]
static int zip_uncompress(EXRContext *s, const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
uint8_t nb_components
The number of components each pixel has, (1-4)
enum AVPictureType pict_type
Picture type of the frame.
#define HALF_FLOAT_MIN_BIASED_EXP_AS_SINGLE_FP_EXP
#define AV_PIX_FMT_GRAY16
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
int width
picture width / height.
enum ExrCompr compression
EXRTileAttribute tile_attr
static void unpack_14(const uint8_t b[14], uint16_t s[16])
avpriv_trc_function avpriv_get_trc_function_from_trc(enum AVColorTransferCharacteristic trc)
Determine the function needed to apply the given AVColorTransferCharacteristic to linear input...
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
enum ExrTileLevelMode level_mode
#define SHORTEST_LONG_RUN
static int check_header_variable(EXRContext *s, const char *value_name, const char *value_type, unsigned int minimum_length)
Check if the variable name corresponds to its data type.
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
static int b44_uncompress(EXRContext *s, const uint8_t *src, int compressed_size, int uncompressed_size, EXRThreadData *td)
static av_always_inline int bytestream2_tell(GetByteContext *g)
int(* execute2)(struct AVCodecContext *c, int(*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count)
The codec may call this to execute several independent things.
#define AV_LOG_INFO
Standard information.
also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC
Libavcodec external API header.
#define AV_PIX_FMT_GRAYF32
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
main external API structure.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
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-> in
Describe the class of an AVClass context structure.
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
"Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"
static av_cold int decode_end(AVCodecContext *avctx)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
#define flags(name, subs,...)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
AVRational av_d2q(double d, int max)
Convert a double precision floating point number to a rational.
#define SHORT_ZEROCODE_RUN
static union av_intfloat32 exr_half2float(uint16_t hf)
Convert a half float as a uint16_t into a full float.
#define AV_PIX_FMT_GBRPF32
#define AV_PIX_FMT_GBRAPF32
IEC 61966-2-1 (sRGB or sYCC)
common internal api header.
common internal and external API header
channel
Use these values when setting the channel map with ebur128_set_channel().
av_cold void ff_bswapdsp_init(BswapDSPContext *c)
static av_always_inline int diff(const uint32_t a, const uint32_t b)
static int piz_uncompress(EXRContext *s, const uint8_t *src, int ssize, int dsize, EXRThreadData *td)
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
static void huf_canonical_code_table(uint64_t *hcode)
ITU-R BT2020 for 10-bit system.
static void apply_lut(const uint16_t *lut, uint16_t *dst, int dsize)
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static void wdec14(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
av_cold void ff_exrdsp_init(ExrDSPContext *c)
static void wdec16(uint16_t l, uint16_t h, uint16_t *a, uint16_t *b)
static int huf_unpack_enc_table(GetByteContext *gb, int32_t im, int32_t iM, uint64_t *hcode)
const AVPixFmtDescriptor * desc
void(* reorder_pixels)(uint8_t *dst, const uint8_t *src, ptrdiff_t size)
This structure stores compressed data.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
static const AVClass exr_class
union av_intfloat32 gamma_table[65536]
enum ExrTileLevelRound level_round
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
"Logarithmic transfer characteristic (100:1 range)"
double(* avpriv_trc_function)(double)