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;
322 for (
int i = 0;
i < s->
width;
i++) {
329 memcpy(dst + offset, src, width);
331 memset(dst + offset, c, width);
343 for (i = 0; i <
size; i++)
353 uint16_t *dst = (uint16_t *)(p->
data[0] + lnum * p->
linesize[0]);
358 for (
int i = 0;
i < s->
width;
i++) {
371 for (i = 0; i <
w; i++) {
380 for (i = 0; i <
w; i++) {
395 z_stream zstream = { 0 };
398 zstream.next_in =
src;
399 zstream.avail_in =
size;
400 zstream.next_out = dst;
401 zstream.avail_out = *
len;
402 zret = inflateInit(&zstream);
407 zret =
inflate(&zstream, Z_SYNC_FLUSH);
408 inflateEnd(&zstream);
409 *
len = zstream.total_out;
410 return zret == Z_STREAM_END ? Z_OK : zret;
415 int strip_start,
int is_yuv)
418 unsigned long outlen;
420 outlen =
width * lines;
431 ret = tiff_uncompress(zbuf, &outlen,
src,
size);
434 "Uncompressing failed (%lu of %lu) with error %d\n", outlen,
435 (
unsigned long)
width * lines, ret);
440 for (line = 0; line < lines; line++) {
462 lzma_stream stream = LZMA_STREAM_INIT;
466 stream.avail_in =
size;
467 stream.next_out = dst;
468 stream.avail_out = *
len;
469 ret = lzma_stream_decoder(&stream, UINT64_MAX, 0);
470 if (ret != LZMA_OK) {
474 ret = lzma_code(&stream, LZMA_RUN);
476 *
len = stream.total_out;
477 return ret == LZMA_STREAM_END ? LZMA_OK : ret;
482 int strip_start,
int is_yuv)
484 uint64_t outlen =
width * (uint64_t)lines;
496 ret = tiff_uncompress_lzma(buf, &outlen,
src,
size);
497 if (ret != LZMA_OK) {
499 "Uncompressing failed (%"PRIu64
" of %"PRIu64
") with error %d\n", outlen,
500 (uint64_t)
width * lines, ret);
505 for (line = 0; line < lines; line++) {
535 "Error allocating temporary buffer\n");
540 memcpy(src2, src, size);
542 for (i = 0; i <
size; i++)
549 for (line = 0; line < lines; line++) {
609 return tiff_unpack_zlib(s, p, dst, stride, src, size, width, lines,
610 strip_start, is_yuv);
613 "zlib support not enabled, " 614 "deflate compression not supported\n");
620 return tiff_unpack_lzma(s, p, dst, stride, src, size, width, lines,
621 strip_start, is_yuv);
624 "LZMA support not enabled\n");
634 if (size > 1 && !src[0] && (src[1]&1)) {
641 for (line = 0; line < lines; line++) {
643 if (pixels < width) {
687 if (is_dng && stride == 0)
690 for (line = 0; line < lines; line++) {
691 if (src - ssrc > size) {
701 if (ssrc + size - src < width)
706 dst, 1, src, 0, width, 0);
709 for (i = 0; i <
width; i++)
715 int is_u16, pixel_size_bytes, pixel_size_bits,
elements;
718 pixel_size_bits = (is_u16 ? 16 : 8);
719 pixel_size_bytes = (is_u16 ?
sizeof(uint16_t) :
sizeof(
uint8_t));
721 elements = width / pixel_size_bytes * pixel_size_bits / s->
bpp * s->
bppcount;
737 for (pixels = 0; pixels <
width;) {
738 if (ssrc + size - src < 2) {
745 if (pixels + code > width ||
746 ssrc + size - src < code) {
748 "Copy went out of bounds\n");
752 dst, 1, src, 0, code, pixels);
755 }
else if (code != -128) {
757 if (pixels + code > width) {
759 "Run went out of bounds\n");
764 dst, 0,
NULL, c, code, pixels);
770 for (i = 0; i <
width; i++)
792 float scale_factor) {
803 value_norm = (float)value * scale_factor;
813 float scale_factor) {
819 int width,
int height,
int is_single_comp,
int is_u16)
826 if (is_single_comp) {
832 for (line = 0; line < height / 2; line++) {
833 uint16_t *dst_u16 = (uint16_t *)dst;
834 uint16_t *src_u16 = (uint16_t *)src;
837 for (col = 0; col <
width; col++)
841 dst += dst_stride *
sizeof(uint16_t);
842 dst_u16 = (uint16_t *)dst;
845 for (col = 0; col <
width; col++)
848 dst += dst_stride *
sizeof(uint16_t);
849 src += src_stride *
sizeof(uint16_t);
855 for (line = 0; line <
height; line++) {
856 uint16_t *dst_u16 = (uint16_t *)dst;
857 uint16_t *src_u16 = (uint16_t *)src;
859 for (col = 0; col <
width; col++)
862 dst += dst_stride *
sizeof(uint16_t);
863 src += src_stride *
sizeof(uint16_t);
866 for (line = 0; line <
height; line++) {
870 for (col = 0; col <
width; col++)
881 int tile_byte_count,
int dst_x,
int dst_y,
int w,
int h)
887 int is_single_comp, is_u16, pixel_size;
896 jpkt.
size = tile_byte_count;
902 mjpegdecctx->
bayer = 1;
922 is_u16 = (s->
bpp > 8);
944 pixel_size = (is_u16 ?
sizeof(uint16_t) :
sizeof(
uint8_t));
946 if (is_single_comp && !is_u16) {
952 dst_offset = dst_x + frame->
linesize[0] * dst_y / pixel_size;
953 dst_data = frame->
data[0] + dst_offset * pixel_size;
975 int tile_offset_offset, tile_offset;
976 int tile_byte_count_offset, tile_byte_count;
977 int tile_count_x, tile_count_y;
979 int has_width_leftover, has_height_leftover;
980 int tile_x = 0, tile_y = 0;
981 int pos_x = 0, pos_y = 0;
998 for (tile_idx = 0; tile_idx < tile_count_x * tile_count_y; tile_idx++) {
999 tile_x = tile_idx % tile_count_x;
1000 tile_y = tile_idx / tile_count_x;
1002 if (has_width_leftover && tile_x == tile_count_x - 1)
1007 if (has_height_leftover && tile_y == tile_count_y - 1)
1026 ret =
dng_decode_jpeg(avctx, frame, tile_byte_count, pos_x, pos_y, tile_width, tile_length);
1033 if (tile_x == tile_count_x - 1) {
1062 int create_gray_palette = 0;
1067 "Unsupported image parameters: bpp=%d, bppcount=%d\n",
1082 create_gray_palette = 1;
1172 "bpp=40 without PHOTOMETRIC_SEPARATED is unsupported\n");
1196 "This format is not supported (bpp=%d, bppcount=%d)\n",
1219 if (!create_gray_palette)
1224 uint32_t *pal = (uint32_t *)frame->
f->
data[1];
1225 for (i = 0; i < 1<<s->
bpp; i++)
1226 pal[i] = 0xFFU << 24 | i * 255 / ((1<<s->
bpp) - 1) * 0x010101;
1235 s->
res[offset++] = num;
1237 if (s->
res[0] && s->
res[1] && s->
res[2] && s->
res[3]) {
1238 uint64_t num = s->
res[2] * (uint64_t)s->
res[1];
1239 uint64_t den = s->
res[0] * (uint64_t)s->
res[3];
1240 if (num > INT64_MAX || den > INT64_MAX) {
1245 num, den, INT32_MAX);
1309 if (count > 5 || count <= 0) {
1311 "This format is not supported (bpp=%d, %d components)\n",
1326 for (i = 0; i < count; i++)
1337 "Samples per pixel requires a single value, many provided\n");
1340 if (value > 5 || value <= 0) {
1342 "Invalid samples per pixel %d\n", value);
1389 if (!value || (type ==
TIFF_LONG && value == UINT_MAX))
1395 if (value > INT_MAX) {
1397 "strippos %u too large\n", value);
1411 if (value > INT_MAX) {
1413 "stripsize %u too large\n", value);
1427 set_sar(s, tag, value, value2);
1454 for (
int i = 0; i < count; i++)
1479 if (count != 2 || (
ff_tget(&s->
gb, type, s->
le) != 2 &&
1511 "PhotometricInterpretation 0x%04X",
1516 "unknown\n", value);
1521 if (value < 1 || value > 2) {
1523 "Unknown FillOrder value %d, trying default one\n", value);
1531 if (count / 3 > 256 ||
1535 pal_gb[0] = pal_gb[1] = pal_gb[2] = s->
gb;
1545 for (i = 0; i < count / 3; i++) {
1546 uint32_t p = 0xFF000000;
1547 p |= (
ff_tget(&pal_gb[0], type, s->
le) >> off) << 16;
1548 p |= (
ff_tget(&pal_gb[1], type, s->
le) >> off) << 8;
1549 p |=
ff_tget(&pal_gb[2], type, s->
le) >> off;
1563 for (i = 0; i < count; i++) {
1580 #define ADD_METADATA(count, name, sep)\ 1581 if ((ret = add_metadata(count, type, name, sep, s, frame)) < 0) {\ 1582 av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");\ 1629 if (count >= INT_MAX /
sizeof(int64_t))
1638 for (i = 0; i < count; i++)
1744 unsigned int ver[4];
1751 ver[0], ver[1], ver[2], ver[3]);
1766 "Unknown or unsupported tag %d/0x%0X\n",
1774 "This format is not supported (bpp=%d, %d components)\n",
1789 unsigned off, last_off = 0;
1792 unsigned soff, ssize;
1796 int retry_for_subifd, retry_for_page;
1798 int has_tile_bits, has_strip_bits;
1806 }
else if (off >= UINT_MAX - 14 || avpkt->
size < off + 14) {
1827 for (i = 0; i < 65536; i++)
1839 for (i = 0; i < entries; i++) {
1854 if (retry_for_page) {
1857 }
else if (retry_for_subifd) {
1862 if (retry_for_subifd || retry_for_page) {
1867 if (off <= last_off) {
1872 if (off >= UINT_MAX - 14 || avpkt->
size < off + 14) {
1907 if (bps < 8 || bps > 32)
1914 av_log(avctx,
AV_LOG_ERROR,
"BlackLevel (%"PRId32
") must be less than WhiteLevel (%"PRId32
")\n",
1931 if (has_tile_bits && has_strip_bits) {
1991 for (plane = 0; plane <
planes; plane++) {
1993 int remaining = avpkt->
size;
1996 dst = p->
data[plane];
1999 stride = stride * 5 / 4;
2005 for (i = 0; i < s->
height; i += s->
rps) {
2018 if (soff > avpkt->
size || ssize > avpkt->
size - soff || ssize > remaining) {
2040 dst = five_planes ? five_planes : p->
data[plane];
2044 ssize = s->
width * soff;
2051 for (i = 0; i < decoded_height; i++) {
2052 for (j = soff; j < ssize; j += 2)
2062 for (i = 0; i < decoded_height; i++) {
2063 for (j = soff; j < ssize; j += 2)
2068 for (i = 0; i < decoded_height; i++) {
2069 for (j = soff; j < ssize; j++)
2070 dst[j] += dst[j - soff];
2078 dst = p->
data[plane];
2079 for (i = 0; i < s->
height; i++) {
2080 for (j = 0; j <
stride; j++)
2081 dst[j] = c - dst[j];
2090 dst = p->
data[plane];
2091 for (i = 0; i < s->
height; i++) {
2092 for (j = 0; j < s->
width; j++) {
2093 int k = 255 - src[x * j + 3];
2094 int r = (255 - src[x * j ]) * k;
2095 int g = (255 - src[x * j + 1]) * k;
2096 int b = (255 - src[x * j + 2]) * k;
2097 dst[4 * j ] = r * 257 >> 16;
2098 dst[4 * j + 1] = g * 257 >> 16;
2099 dst[4 * j + 2] = b * 257 >> 16;
2108 dst = p->
data[plane];
2109 for (i = 0; i < s->
height; i++) {
2110 for (j = 0; j < s->
width; j++) {
2111 uint64_t k = 65535 -
AV_RB16(dst + 8 * j + 6);
2112 uint64_t
r = (65535 -
AV_RB16(dst + 8 * j )) * k;
2113 uint64_t
g = (65535 -
AV_RB16(dst + 8 * j + 2)) * k;
2114 uint64_t
b = (65535 -
AV_RB16(dst + 8 * j + 4)) * k;
2115 AV_WB16(dst + 8 * j , r * 65537 >> 32);
2116 AV_WB16(dst + 8 * j + 2, g * 65537 >> 32);
2117 AV_WB16(dst + 8 * j + 4, b * 65537 >> 32);
2118 AV_WB16(dst + 8 * j + 6, 65535);
2133 uint16_t *dst = (uint16_t *)p->
data[0];
2135 for (j = 0; j < s->
width; j++)
2204 #define OFFSET(x) offsetof(TiffContext, x) 2230 .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.
#define AV_PIX_FMT_GRAY16
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
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().