32 #define LZMA_API_STATIC 132 #define RET_GEOKEY(TYPE, array, element)\ 133 if (key >= TIFF_##TYPE##_KEY_ID_OFFSET &&\ 134 key - TIFF_##TYPE##_KEY_ID_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_name_type_map))\ 135 return ff_tiff_##array##_name_type_map[key - TIFF_##TYPE##_KEY_ID_OFFSET].element; 180 #define RET_GEOKEY_VAL(TYPE, array)\ 181 if (val >= TIFF_##TYPE##_OFFSET &&\ 182 val - TIFF_##TYPE##_OFFSET < FF_ARRAY_ELEMS(ff_tiff_##array##_codes))\ 183 return av_strdup(ff_tiff_##array##_codes[val - TIFF_##TYPE##_OFFSET]); 235 snprintf(ap, 14,
"Unknown-%d", val);
243 uint64_t component_len;
244 if (!sep) sep =
", ";
245 component_len = 24LL + strlen(sep);
246 if (count >= (INT_MAX - 1)/component_len)
248 ap =
av_malloc(component_len * count + 1);
253 for (i = 0; i < count; i++) {
254 unsigned l =
snprintf(ap, component_len,
"%.15g%s", dp[i], sep);
255 if(l >= component_len) {
261 ap0[strlen(ap0) - strlen(sep)] =
'\0';
278 int is_single_comp,
int is_u16);
287 while (--width >= 0) {
288 dst[(width+
offset)*8+7] = (usePtr ? src[width] : c) & 0x1;
289 dst[(width+
offset)*8+6] = (usePtr ? src[width] : c) >> 1 & 0x1;
290 dst[(width+
offset)*8+5] = (usePtr ? src[width] : c) >> 2 & 0x1;
291 dst[(width+
offset)*8+4] = (usePtr ? src[width] : c) >> 3 & 0x1;
292 dst[(width+
offset)*8+3] = (usePtr ? src[width] : c) >> 4 & 0x1;
293 dst[(width+
offset)*8+2] = (usePtr ? src[width] : c) >> 5 & 0x1;
294 dst[(width+
offset)*8+1] = (usePtr ? src[width] : c) >> 6 & 0x1;
295 dst[(width+
offset)*8+0] = (usePtr ? src[width] : c) >> 7;
299 while (--width >= 0) {
300 dst[(width+
offset)*4+3] = (usePtr ? src[width] : c) & 0x3;
301 dst[(width+
offset)*4+2] = (usePtr ? src[width] : c) >> 2 & 0x3;
302 dst[(width+
offset)*4+1] = (usePtr ? src[width] : c) >> 4 & 0x3;
303 dst[(width+
offset)*4+0] = (usePtr ? src[width] : c) >> 6;
307 while (--width >= 0) {
308 dst[(width+
offset)*2+1] = (usePtr ? src[width] : c) & 0xF;
309 dst[(width+
offset)*2+0] = (usePtr ? src[width] : c) >> 4;
315 uint16_t *dst16 = (uint16_t *)dst;
321 for (
int i = 0;
i < s->
width;
i++) {
328 memcpy(dst + offset, src, width);
330 memset(dst + offset, c, width);
342 for (i = 0; i <
size; i++)
352 uint16_t *dst = (uint16_t *)(p->
data[0] + lnum * p->
linesize[0]);
356 for (
int i = 0;
i < s->
width;
i++) {
369 for (i = 0; i <
w; i++) {
378 for (i = 0; i <
w; i++) {
393 z_stream zstream = { 0 };
396 zstream.next_in =
src;
397 zstream.avail_in =
size;
398 zstream.next_out = dst;
399 zstream.avail_out = *
len;
400 zret = inflateInit(&zstream);
405 zret =
inflate(&zstream, Z_SYNC_FLUSH);
406 inflateEnd(&zstream);
407 *
len = zstream.total_out;
408 return zret == Z_STREAM_END ? Z_OK : zret;
413 int strip_start,
int is_yuv)
416 unsigned long outlen;
418 outlen =
width * lines;
429 ret = tiff_uncompress(zbuf, &outlen,
src,
size);
432 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
433 (
unsigned long)
width * lines, ret);
438 for (line = 0; line < lines; line++) {
460 lzma_stream stream = LZMA_STREAM_INIT;
464 stream.avail_in =
size;
465 stream.next_out = dst;
466 stream.avail_out = *
len;
467 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
468 if (ret != LZMA_OK) {
472 ret = lzma_code(&stream, LZMA_RUN);
474 *
len = stream.total_out;
475 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
480 int strip_start,
int is_yuv)
482 uint64_t outlen =
width * (uint64_t)lines;
494 ret = tiff_uncompress_lzma(buf, &outlen,
src,
size);
495 if (ret != LZMA_OK) {
497 "Uncompressing failed (%"PRIu64
" of %"PRIu64
") with error %d\n", outlen,
498 (uint64_t)
width * lines, ret);
503 for (line = 0; line < lines; line++) {
533 "Error allocating temporary buffer\n");
538 memcpy(src2, src, size);
540 for (i = 0; i <
size; i++)
547 for (line = 0; line < lines; line++) {
606 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
607 strip_start, is_yuv);
610 "zlib support not enabled, " 611 "deflate compression not supported\n");
617 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
618 strip_start, is_yuv);
621 "LZMA support not enabled\n");
631 if (size > 1 && !src[0] && (src[1]&1)) {
638 for (line = 0; line < lines; line++) {
640 if (pixels < width) {
682 if (is_dng && stride == 0)
685 for (line = 0; line < lines; line++) {
686 if (src - ssrc > size) {
696 if (ssrc + size - src < width)
701 dst, 1, src, 0, width, 0);
704 for (i = 0; i <
width; i++)
710 int is_u16, pixel_size_bytes, pixel_size_bits,
elements;
712 is_u16 = (s->
bpp > 8);
713 pixel_size_bits = (is_u16 ? 16 : 8);
714 pixel_size_bytes = (is_u16 ?
sizeof(uint16_t) :
sizeof(
uint8_t));
716 elements = width / pixel_size_bytes * pixel_size_bits / s->
bpp * s->
bppcount;
732 for (pixels = 0; pixels <
width;) {
733 if (ssrc + size - src < 2) {
740 if (pixels + code > width ||
741 ssrc + size - src < code) {
743 "Copy went out of bounds\n");
747 dst, 1, src, 0, code, pixels);
750 }
else if (code != -128) {
752 if (pixels + code > width) {
754 "Run went out of bounds\n");
759 dst, 0,
NULL, c, code, pixels);
765 for (i = 0; i <
width; i++)
787 float scale_factor) {
798 value_norm = (float)value * scale_factor;
808 float scale_factor) {
814 int width,
int height,
int is_single_comp,
int is_u16)
821 if (is_single_comp) {
827 for (line = 0; line < height / 2; line++) {
828 uint16_t *dst_u16 = (uint16_t *)dst;
829 uint16_t *src_u16 = (uint16_t *)src;
832 for (col = 0; col <
width; col++)
836 dst += dst_stride *
sizeof(uint16_t);
837 dst_u16 = (uint16_t *)dst;
840 for (col = 0; col <
width; col++)
843 dst += dst_stride *
sizeof(uint16_t);
844 src += src_stride *
sizeof(uint16_t);
850 for (line = 0; line <
height; line++) {
851 uint16_t *dst_u16 = (uint16_t *)dst;
852 uint16_t *src_u16 = (uint16_t *)src;
854 for (col = 0; col <
width; col++)
857 dst += dst_stride *
sizeof(uint16_t);
858 src += src_stride *
sizeof(uint16_t);
861 for (line = 0; line <
height; line++) {
862 for (col = 0; col <
width; col++)
873 int tile_byte_count,
int dst_x,
int dst_y,
int w,
int h)
879 int is_single_comp, is_u16, pixel_size;
885 jpkt.
size = tile_byte_count;
891 mjpegdecctx->
bayer = 1;
916 is_u16 = (s->
bpp > 8);
917 pixel_size = (is_u16 ?
sizeof(uint16_t) :
sizeof(
uint8_t));
919 if (is_single_comp && !is_u16) {
925 dst_offset = dst_x + frame->
linesize[0] * dst_y / pixel_size;
926 dst_data = frame->
data[0] + dst_offset * pixel_size;
948 int tile_offset_offset, tile_offset;
949 int tile_byte_count_offset, tile_byte_count;
950 int tile_count_x, tile_count_y;
952 int has_width_leftover, has_height_leftover;
953 int tile_x = 0, tile_y = 0;
954 int pos_x = 0, pos_y = 0;
971 for (tile_idx = 0; tile_idx < s->
tile_count; tile_idx++) {
972 tile_x = tile_idx % tile_count_x;
973 tile_y = tile_idx / tile_count_x;
975 if (has_width_leftover && tile_x == tile_count_x - 1)
980 if (has_height_leftover && tile_y == tile_count_y - 1)
999 ret =
dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1006 if (tile_x == tile_count_x - 1) {
1035 int create_gray_palette = 0;
1040 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1055 create_gray_palette = 1;
1145 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1169 "This format is not supported (bpp=%d, bppcount=%d)\n",
1192 if (!create_gray_palette)
1197 uint32_t *pal = (uint32_t *)frame->
f->
data[1];
1198 for (i = 0; i < 1<<s->
bpp; i++)
1199 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->
bpp) - 1) * 0x010101;
1208 s->
res[offset++] = num;
1210 if (s->
res[0] && s->
res[1] && s->
res[2] && s->
res[3]) {
1211 uint64_t num = s->
res[2] * (uint64_t)s->
res[1];
1212 uint64_t den = s->
res[0] * (uint64_t)s->
res[3];
1213 if (num > INT64_MAX || den > INT64_MAX) {
1218 num, den, INT32_MAX);
1278 "This format is not supported (bpp=%d, %d components)\n",
1293 for (i = 0; i < count; i++)
1304 "Samples per pixel requires a single value, many provided\n");
1309 "Samples per pixel %d is too large\n", value);
1356 if (!value || (type ==
TIFF_LONG && value == UINT_MAX))
1362 if (value > INT_MAX) {
1364 "strippos %u too large\n", value);
1378 if (value > INT_MAX) {
1380 "stripsize %u too large\n", value);
1394 set_sar(s, tag, value, value2);
1420 for (
int i = 0; i <
FFMIN(count, 1 << s->
bpp); i++)
1445 if (count != 2 || (
ff_tget(&s->
gb, type, s->
le) != 2 &&
1477 "PhotometricInterpretation 0x%04X",
1482 "unknown\n", value);
1487 if (value < 1 || value > 2) {
1489 "Unknown FillOrder value %d, trying default one\n", value);
1497 if (count / 3 > 256 ||
1501 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->
gb;
1511 for (i = 0; i < count / 3; i++) {
1512 uint32_t p = 0xFF000000;
1513 p |= (
ff_tget(&pal_gb[0], type, s->
le) >> off) << 16;
1514 p |= (
ff_tget(&pal_gb[1], type, s->
le) >> off) << 8;
1515 p |=
ff_tget(&pal_gb[2], type, s->
le) >> off;
1529 for (i = 0; i < count; i++) {
1546 #define ADD_METADATA(count, name, sep)\ 1547 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\ 1548 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\ 1595 if (count >= INT_MAX /
sizeof(int64_t))
1604 for (i = 0; i < count; i++)
1710 unsigned int ver[4];
1717 ver[0], ver[1], ver[2], ver[3]);
1732 "Unknown or unsupported tag %d/0x%0X\n",
1740 "This format is not supported (bpp=%d, %d components)\n",
1755 unsigned off, last_off;
1758 unsigned soff, ssize;
1762 int retry_for_subifd, retry_for_page;
1764 int has_tile_bits, has_strip_bits;
1772 }
else if (off >= UINT_MAX - 14 || avpkt->
size < off + 14) {
1792 for (i = 0; i < 65536; i++)
1804 for (i = 0; i < entries; i++) {
1820 if (retry_for_page) {
1823 }
else if (retry_for_subifd) {
1828 if (retry_for_subifd || retry_for_page) {
1833 if (off <= last_off) {
1837 if (off >= UINT_MAX - 14 || avpkt->
size < off + 14) {
1873 av_log(avctx,
AV_LOG_ERROR,
"BlackLevel (%"PRId32
") must be less than WhiteLevel (%"PRId32
")\n",
1881 if (bps < 8 || bps > 32)
1895 if (has_tile_bits && has_strip_bits) {
1955 for (plane = 0; plane <
planes; plane++) {
1957 int remaining = avpkt->
size;
1960 dst = p->
data[plane];
1963 stride = stride * 5 / 4;
1969 for (i = 0; i < s->
height; i += s->
rps) {
1982 if (soff > avpkt->
size || ssize > avpkt->
size - soff || ssize > remaining) {
2004 dst = five_planes ? five_planes : p->
data[plane];
2008 ssize = s->
width * soff;
2015 for (i = 0; i < decoded_height; i++) {
2016 for (j = soff; j < ssize; j += 2)
2026 for (i = 0; i < decoded_height; i++) {
2027 for (j = soff; j < ssize; j += 2)
2032 for (i = 0; i < decoded_height; i++) {
2033 for (j = soff; j < ssize; j++)
2034 dst[j] += dst[j - soff];
2042 dst = p->
data[plane];
2043 for (i = 0; i < s->
height; i++) {
2044 for (j = 0; j <
stride; j++)
2045 dst[j] = c - dst[j];
2054 dst = p->
data[plane];
2055 for (i = 0; i < s->
height; i++) {
2056 for (j = 0; j < s->
width; j++) {
2057 int k = 255 - src[x * j + 3];
2058 int r = (255 - src[x * j ]) * k;
2059 int g = (255 - src[x * j + 1]) * k;
2060 int b = (255 - src[x * j + 2]) * k;
2061 dst[4 * j ] = r * 257 >> 16;
2062 dst[4 * j + 1] = g * 257 >> 16;
2063 dst[4 * j + 2] = b * 257 >> 16;
2072 dst = p->
data[plane];
2073 for (i = 0; i < s->
height; i++) {
2074 for (j = 0; j < s->
width; j++) {
2075 uint64_t k = 65535 -
AV_RB16(dst + 8 * j + 6);
2076 uint64_t
r = (65535 -
AV_RB16(dst + 8 * j )) * k;
2077 uint64_t
g = (65535 -
AV_RB16(dst + 8 * j + 2)) * k;
2078 uint64_t
b = (65535 -
AV_RB16(dst + 8 * j + 4)) * k;
2079 AV_WB16(dst + 8 * j , r * 65537 >> 32);
2080 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2081 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2082 AV_WB16(dst + 8 * j + 6, 65535);
2097 uint16_t *dst = (uint16_t *)p->
data[0];
2099 for (j = 0; j < s->
width; j++)
2168 #define OFFSET(x) offsetof(TiffContext, x) 2194 .priv_class = &tiff_decoder_class,
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
static uint16_t av_always_inline dng_process_color8(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
int ff_lzw_decode(LZWState *p, uint8_t *buf, int len)
Decode given number of bytes NOTE: the algorithm here is inspired from the LZW GIF decoder written by...
static void av_always_inline dng_blit(TiffContext *s, uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, int is_single_comp, int is_u16)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
const TiffGeoTagKeyName ff_tiff_projection_codes[]
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.
TiffPhotometric
list of TIFF, TIFF/AP and DNG PhotometricInterpretation (TIFF_PHOTOMETRIC) values ...
int dct_algo
DCT algorithm, see FF_DCT_* below.
"Linear transfer characteristics"
8 bits gray, 8 bits alpha
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
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
packed RGB 8:8:8, 24bpp, RGBRGB...
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.
int ff_tadd_doubles_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, AVDictionary **metadata)
Adds count doubles converted to a string into the metadata dictionary.
static av_cold int init(AVCodecContext *avctx)
const uint8_t ff_reverse[256]
#define avpriv_request_sample(...)
bayer, GBGB..(odd line), RGRG..(even line), 8-bit samples
bayer, GRGR..(odd line), BGBG..(even line), 8-bit samples
TIFF constants & data structures.
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.
av_cold void ff_lzw_decode_close(LZWState **p)
static const char * search_keyval(const TiffGeoTagKeyName *keys, int n, int id)
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
av_cold void ff_lzw_decode_open(LZWState **p)
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)
static void free_geotags(TiffContext *const s)
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...
bayer, BGBG..(odd line), GRGR..(even line), 8-bit samples
unsigned int yuv_line_size
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Macro definitions for various function/variable attributes.
static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int stride, const uint8_t *src, int size, int strip_start, int lines)
static int tiff_decode_tag(TiffContext *s, AVFrame *frame)
static const uint8_t type_sizes[14]
sizes of various TIFF field types (string size = 100)
#define AV_PIX_FMT_GRAY12
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
av_cold void ff_ccitt_unpack_init(void)
initialize unpacker code
planar GBRA 4:4:4:4 64bpp, big-endian
#define av_assert0(cond)
assert() equivalent, that is always enabled.
static uint16_t av_always_inline dng_process_color16(uint16_t value, const uint16_t *lut, uint16_t black_level, float scale_factor)
Map stored raw sensor values into linear reference values (see: DNG Specification - Chapter 5) ...
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
8 bits with AV_PIX_FMT_RGB32 palette
#define TIFF_GEO_KEY_USER_DEFINED
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as lit...
static av_cold int end(AVCodecContext *avctx)
Multithreading support functions.
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
static av_cold int tiff_init(AVCodecContext *avctx)
Structure to hold side data for an AVFrame.
planar GBR 4:4:4 48bpp, big-endian
static int add_metadata(int count, int type, const char *name, const char *sep, TiffContext *s, AVFrame *frame)
#define AVERROR_EOF
End of file.
bitstream reader API header.
AVDictionary * metadata
metadata.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
#define AV_PIX_FMT_BAYER_GRBG16
static av_always_inline int bytestream2_get_bytes_left(GetByteContext *g)
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
16 bits gray, 16 bits alpha (big-endian)
int ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Call avcodec_open2 recursively by decrementing counter, unlocking mutex, calling the function and the...
unsigned int fax_buffer_size
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_cold int tiff_end(AVCodecContext *avctx)
unsigned ff_tget_short(GetByteContext *gb, int le)
Reads a short from the bytestream using given endianness.
int avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder.
static int deinvert_buffer(TiffContext *s, const uint8_t *src, int size)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
unsigned ff_tget(GetByteContext *gb, int type, int le)
Reads a byte from the bytestream using given endianness.
int flags
AV_CODEC_FLAG_*.
const char * name
Name of the codec implementation.
AVCodecContext * avctx_mjpeg
static void set_sar(TiffContext *s, unsigned tag, unsigned num, unsigned den)
static int tiff_unpack_fax(TiffContext *s, uint8_t *dst, int stride, const uint8_t *src, int size, int width, int lines)
int ff_ccitt_unpack(AVCodecContext *avctx, const uint8_t *src, int srcsize, uint8_t *dst, int height, int stride, enum TiffCompr compr, int opts)
unpack data compressed with CCITT Group 3 1/2-D or Group 4 method
static const uint8_t offset[127][2]
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
Clip a signed integer value into the 0-65535 range.
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
TIFF image based on the TIFF 6.0 or TIFF/EP (ISO 12234-2) specifications.
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
enum TiffPhotometric photometric
const TiffGeoTagKeyName ff_tiff_proj_cs_type_codes[]
static const struct @315 planes[]
uint8_t nb_components
The number of components each pixel has, (1-4)
enum AVPictureType pict_type
Picture type of the frame.
static const AVOption tiff_options[]
int err_recognition
Error recognition; may misdetect some more or less valid parts as errors.
static int dng_decode_strip(AVCodecContext *avctx, AVFrame *frame)
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
int width
picture width / height.
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
static const ElemCat * elements[ELEMENT_COUNT]
unsigned ff_tget_long(GetByteContext *gb, int le)
Reads a long from the bytestream using given endianness.
static void unpack_yuv(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum)
static void tiff_set_type(TiffContext *s, enum TiffType tiff_type)
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
The data contains an ICC profile as an opaque octet buffer following the format described by ISO 1507...
#define AV_EF_EXPLODE
abort decoding on minor error detection
static void av_always_inline horizontal_fill(TiffContext *s, unsigned int bpp, uint8_t *dst, int usePtr, const uint8_t *src, uint8_t c, int width, int offset)
#define AV_PIX_FMT_BAYER_BGGR16
#define FF_ARRAY_ELEMS(a)
#define TIFF_GEO_KEY_UNDEFINED
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset, int whence)
static av_always_inline int bytestream2_tell(GetByteContext *g)
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
#define AV_PIX_FMT_BAYER_GBRG16
TiffType
TIFF types in ascenting priority (last in the list is highest)
#define AV_LOG_INFO
Standard information.
static const char * get_geokey_name(int key)
TiffCompr
list of TIFF, TIFF/EP and DNG compression types
char * av_strdup(const char *s)
Duplicate a string.
Libavcodec external API header.
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
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.
#define AV_OPT_FLAG_VIDEO_PARAM
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.
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Describe the class of an AVClass context structure.
AVFrameSideData * av_frame_new_side_data(AVFrame *frame, enum AVFrameSideDataType type, int size)
Add a new side data to a frame.
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
Rational number (pair of numerator and denominator).
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Digital Negative (DNG) image part of an CinemaDNG image sequence.
static int get_geokey_type(int key)
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
int ff_tadd_shorts_metadata(int count, const char *name, const char *sep, GetByteContext *gb, int le, int is_signed, AVDictionary **metadata)
Adds count shorts converted to a string into the metadata dictionary.
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static int dng_decode_jpeg(AVCodecContext *avctx, AVFrame *frame, int tile_byte_count, int dst_x, int dst_y, int w, int h)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
#define AV_PIX_FMT_BAYER_RGGB16
static int dng_decode_tiles(AVCodecContext *avctx, AVFrame *frame, AVPacket *avpkt)
Y , 1bpp, 0 is black, 1 is white, in each byte pixels are ordered from the msb to the lsb...
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
int tile_byte_counts_offset
common internal api header.
static char * get_geokey_val(int key, int val)
static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
planar GBRA 4:4:4:4 32bpp
packed RGB 16:16:16, 48bpp, 16R, 16G, 16B, the 2-byte value for each R/G/B component is stored as big...
static char * doubles2str(double *dp, int count, const char *sep)
bayer, RGRG..(odd line), GBGB..(even line), 8-bit samples
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
int ff_lzw_decode_init(LZWState *p, int csize, const uint8_t *buf, int buf_size, int mode)
Initialize LZW decoder.
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
#define RET_GEOKEY_VAL(TYPE, array)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
int ff_tadd_string_metadata(int count, const char *name, GetByteContext *gb, int le, AVDictionary **metadata)
Adds a string of count characters into the metadata dictionary.
Digital Negative (DNG) image.
Y , 16bpp, little-endian.
int key_frame
1 -> keyframe, 0-> not
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
16 bits gray, 16 bits alpha (little-endian)
int flags2
AV_CODEC_FLAG2_*.
static const AVClass tiff_decoder_class
int ff_tread_tag(GetByteContext *gb, int le, unsigned *tag, unsigned *type, unsigned *count, int *next)
Reads the first 3 fields of a TIFF tag, which are the tag id, the tag type and the count of values fo...
#define RET_GEOKEY(TYPE, array, element)
int ff_tdecode_header(GetByteContext *gb, int *le, int *ifd_offset)
Decodes a TIFF header from the input bytestream and sets the endianness in *le and the offset to the ...
static int init_image(TiffContext *s, ThreadFrame *frame)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
enum AVColorTransferCharacteristic color_trc
planar GBR 4:4:4 48bpp, little-endian
#define av_malloc_array(a, b)
#define FFSWAP(type, a, b)
static int cmp_id_key(const void *id, const void *k)
double ff_tget_double(GetByteContext *gb, int le)
Reads a double from the bytestream using given endianness.
planar GBRA 4:4:4:4 64bpp, little-endian
#define ADD_METADATA(count, name, sep)
static double val(void *priv, double ch)
This structure stores compressed data.
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
CCITT Fax Group 3 and 4 decompression.
packed RGBA 16:16:16:16, 64bpp, 16R, 16G, 16B, 16A, the 2-byte value for each R/G/B/A component is st...
static void unpack_gray(TiffContext *s, AVFrame *p, const uint8_t *src, int lnum, int width, int bpp)
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().