33 #define UNCHECKED_BITSTREAM_READER 1
44 #define classic_shift_luma_table_size 42
46 34, 36, 35, 69, 135, 232, 9, 16, 10, 24, 11, 23, 12, 16, 13, 10,
47 14, 8, 15, 8, 16, 8, 17, 20, 16, 10, 207, 206, 205, 236, 11, 8,
48 10, 21, 9, 23, 8, 8, 199, 70, 69, 68, 0,
52 #define classic_shift_chroma_table_size 59
54 66, 36, 37, 38, 39, 40, 41, 75, 76, 77, 110, 239, 144, 81, 82, 83,
55 84, 85, 118, 183, 56, 57, 88, 89, 56, 89, 154, 57, 58, 57, 26, 141,
56 57, 56, 58, 57, 58, 57, 184, 119, 214, 245, 116, 83, 82, 49, 80, 79,
57 78, 77, 44, 75, 41, 40, 39, 38, 37, 36, 34, 0,
62 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37,
63 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36,
64 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36,
65 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39,
66 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37,
67 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29,
68 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16,
69 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14,
70 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6,
71 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15,
72 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25,
73 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49,
74 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60,
75 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52,
76 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43,
77 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8,
81 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9,
82 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7,
83 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77,
84 43, 45, 76, 81, 46, 82, 75, 55, 56, 144, 58, 80, 60, 74, 147, 63,
85 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
86 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22,
87 17, 14, 5, 6, 100, 54, 47, 50, 51, 53, 106, 107, 108, 109, 110, 111,
88 112, 113, 114, 115, 4, 117, 118, 92, 94, 121, 122, 3, 124, 103, 2, 1,
89 0, 129, 130, 131, 120, 119, 126, 125, 136, 137, 138, 139, 140, 141, 142, 134,
90 135, 132, 133, 104, 64, 101, 62, 57, 102, 95, 93, 59, 61, 28, 97, 96,
91 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41,
92 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36,
93 7, 128, 127, 105, 123, 116, 35, 34, 33, 145, 31, 79, 42, 146, 78, 26,
94 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13,
95 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8,
96 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2,
103 for (i = 0; i <
n;) {
131 for (p = 0; p < 4; p++) {
132 int p0 = s->
version > 2 ? p : 0;
133 for (i = y = 0; y < s->
vlc_n; y++) {
134 int len0 = s->
len[p0][y];
136 if (limit <= 0 || !len0)
140 for (u = 0; u < s->
vlc_n; u++) {
141 int len1 = s->
len[p][
u];
142 if (len1 > limit || !len1)
147 len[i] = len0 + len1;
148 bits[i] = (s->
bits[p0][y] << len1) + s->
bits[p][u];
149 symbols[i] = (y << 8) + (u & 0xFF);
155 bits, 2, 2, symbols, 2, 2, 0)) < 0)
160 int i,
b,
g,
r, code;
166 for (i = 0,
g = -16;
g < 16;
g++) {
167 int len0 = s->
len[p0][
g & 255];
169 if (limit0 < 2 || !len0)
171 for (
b = -16;
b < 16;
b++) {
172 int len1 = s->
len[p1][
b & 255];
173 int limit1 = limit0 - len1;
174 if (limit1 < 1 || !len1)
176 code = (s->
bits[p0][
g & 255] << len1) + s->
bits[p1][
b & 255];
177 for (
r = -16;
r < 16;
r++) {
178 int len2 = s->
len[2][
r & 255];
179 if (len2 > limit1 || !len2)
182 len[i] = len0 + len1 + len2;
183 bits[i] = (code << len2) + s->
bits[2][
r & 255];
220 for (i = 0; i <
count; i++) {
227 s->
bits[i], 4, 4, 0)) < 0)
252 for (i = 0; i < 256; i++)
254 for (i = 0; i < 256; i++)
258 memcpy(s->
bits[1], s->
bits[0], 256 *
sizeof(uint32_t));
261 memcpy(s->
bits[2], s->
bits[1], 256 *
sizeof(uint32_t));
264 for (i = 0; i < 4; i++) {
267 s->
bits[i], 4, 4, 0)) < 0)
285 for (i = 0; i < 8; i++)
302 memset(s->
vlc, 0, 4 *
sizeof(
VLC));
323 int method, interlace;
345 interlace = (avctx->
extradata[2] & 0x30) >> 4;
560 "for this combination of colorspace and predictor type.\n");
589 for (i = 0; i < 8; i++)
606 #define VLC_INTERN(dst, table, gb, name, bits, max_depth) \
607 code = table[index][0]; \
608 n = table[index][1]; \
609 if (max_depth > 1 && n < 0) { \
610 LAST_SKIP_BITS(name, gb, bits); \
611 UPDATE_CACHE(name, gb); \
614 index = SHOW_UBITS(name, gb, nb_bits) + code; \
615 code = table[index][0]; \
616 n = table[index][1]; \
617 if (max_depth > 2 && n < 0) { \
618 LAST_SKIP_BITS(name, gb, nb_bits); \
619 UPDATE_CACHE(name, gb); \
622 index = SHOW_UBITS(name, gb, nb_bits) + code; \
623 code = table[index][0]; \
624 n = table[index][1]; \
628 LAST_SKIP_BITS(name, gb, n)
631 #define GET_VLC_DUAL(dst0, dst1, name, gb, dtable, table1, table2, \
632 bits, max_depth, OP) \
634 unsigned int index = SHOW_UBITS(name, gb, bits); \
635 int code, n = dtable[index][1]; \
639 VLC_INTERN(dst0, table1, gb, name, bits, max_depth); \
641 UPDATE_CACHE(re, gb); \
642 index = SHOW_UBITS(name, gb, bits); \
643 VLC_INTERN(dst1, table2, gb, name, bits, max_depth); \
645 code = dtable[index][0]; \
646 OP(dst0, dst1, code); \
647 LAST_SKIP_BITS(name, gb, n); \
651 #define OP8bits(dst0, dst1, code) dst0 = code>>8; dst1 = code
653 #define READ_2PIX(dst0, dst1, plane1) \
654 UPDATE_CACHE(re, &s->gb); \
655 GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane1].table, \
656 s->vlc[0].table, s->vlc[plane1].table, VLC_BITS, 3, OP8bits)
665 if (count >= icount) {
666 for (i = 0; i < icount; i++) {
675 for (; i <
count; i++)
676 s->
temp[0][2 * i ] = s->
temp[1][i] =
677 s->
temp[0][2 * i + 1] = s->
temp[2][i] = 0;
679 for (i = 0; i <
count; i++) {
687 #define READ_2PIX_PLANE(dst0, dst1, plane, OP) \
688 UPDATE_CACHE(re, &s->gb); \
689 GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane].table, \
690 s->vlc[plane].table, s->vlc[plane].table, VLC_BITS, 3, OP)
692 #define OP14bits(dst0, dst1, code) dst0 = code>>8; dst1 = sign_extend(code, 8)
696 #define READ_2PIX_PLANE16(dst0, dst1, plane){\
697 dst0 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
698 dst0 += get_bits(&s->gb, 2);\
699 dst1 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
700 dst1 += get_bits(&s->gb, 2);\
704 int i,
count = width/2;
713 for(i=0; i<
count; i++){
719 int nb_bits, code,
n;
726 }
else if (s->
bps <= 14) {
733 for(i=0; i<
count; i++){
739 int nb_bits, code,
n;
752 for(i=0; i<
count; i++){
774 for (i = 0; i <
count; i++) {
789 int code,
n, nb_bits;
807 s->
temp[0][4 * i +
B] = code + s->
temp[0][4 * i +
G];
812 s->
temp[0][4 * i +
R] = code + s->
temp[0][4 * i +
G];
834 s->
temp[0][4 * i +
A] = 0;
871 offset[1] = frame->
linesize[1] * cy;
872 offset[2] = frame->
linesize[2] * cy;
896 s->
hdsp.
add_int16((uint16_t*)dst, (
const uint16_t*)src, s->
n - 1, w);
912 int buf_size = avpkt->
size;
915 const int width2 = s->
width >> 1;
917 int fake_ystride, fake_ustride, fake_vstride;
920 int table_size = 0, ret;
929 (
const uint32_t *) buf, buf_size / 4);
940 if ((
unsigned) (buf_size - table_size) >= INT_MAX / 8)
944 (buf_size - table_size) * 8)) < 0)
955 for(plane = 0; plane < 1 + 2*s->
chroma + s->
alpha; plane++) {
956 int left, lefttop, y;
959 int fake_stride = fake_ystride;
961 if (s->
chroma && (plane == 1 || plane == 2)) {
964 fake_stride = plane == 1 ? fake_ustride : fake_vstride;
973 for (y = 1; y <
h; y++) {
1020 int lefty, leftu, leftv;
1021 int lefttopy, lefttopu, lefttopv;
1030 "YUY2 output is not implemented yet\n");
1052 for (cy = y = 1; y < s->
height; y++, cy++) {
1113 s->
temp[0], width, lefty);
1125 s->
temp[0], 4, lefty);
1132 lefttopy = p->
data[0][3];
1136 width - 4, &lefty, &lefttopy);
1138 lefttopu = p->
data[1][1];
1139 lefttopv = p->
data[2][1];
1146 for (; y <
height; y++, cy++) {
1150 while (2 * cy > y) {
1185 const int last_line = (height - 1) * p->
linesize[0];
1196 left[
A] = p->
data[0][last_line +
A] = 255;
1206 s->
temp[0], width - 1, left);
1208 for (y = s->
height - 2; y >= 0; y--) {
1212 s->
temp[0], width, left);
1219 fake_ystride, 4 * width);
1228 "prediction type not supported!\n");
1232 "BGR24 output is not implemented yet\n");
1257 #if CONFIG_FFVHUFF_DECODER
1258 AVCodec ff_ffvhuff_decoder = {
int(* add_left_pred_int16)(uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned left)
void(* bswap_buf)(uint32_t *dst, const uint32_t *src, int w)
static void add_median_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, const uint8_t *diff, int w, int *left, int *left_top)
#define OP14bits(dst0, dst1, code)
const char const char void * val
#define AV_PIX_FMT_YUVA422P16
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_NUM_DATA_POINTERS
static void decode_plane_bitstream(HYuvContext *s, int width, int plane)
#define AV_PIX_FMT_YUVA422P9
#define READ_2PIX_PLANE(dst0, dst1, plane, OP)
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUVA422P10
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.
static int init_thread_copy(AVCodecContext *avctx)
static av_cold int init(AVCodecContext *avctx)
static void decode_422_bitstream(HYuvContext *s, int count)
int ff_init_vlc_sparse(VLC *vlc_arg, int nb_bits, int nb_codes, const void *bits, int bits_wrap, int bits_size, const void *codes, int codes_wrap, int codes_size, const void *symbols, int symbols_wrap, int symbols_size, int flags)
#define AV_PIX_FMT_GBRP10
static av_always_inline void decode_bgr_1(HYuvContext *s, int count, int decorrelate, int alpha)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
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...
#define AV_PIX_FMT_YUV420P12
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
#define READ_2PIX_PLANE16(dst0, dst1, plane)
unsigned int bitstream_buffer_size
static int generate_joint_tables(HYuvContext *s)
#define READ_2PIX(dst0, dst1, plane1)
static int read_old_huffman_tables(HYuvContext *s)
static void draw_slice(HYuvContext *s, AVFrame *frame, int y)
void(* add_hfyu_median_pred_int16)(uint16_t *dst, const uint16_t *top, const uint16_t *diff, unsigned mask, int w, int *left, int *left_top)
void(* add_bytes)(uint8_t *dst, uint8_t *src, ptrdiff_t w)
#define av_assert0(cond)
assert() equivalent, that is always enabled.
uint32_t pix_bgr_map[1<< VLC_BITS]
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
static void decode_bgr_bitstream(HYuvContext *s, int count)
Multithreading support functions.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
#define AV_PIX_FMT_YUVA420P9
static int get_bits_count(const GetBitContext *s)
bitstream reader API header.
#define AV_PIX_FMT_YUV444P16
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUVA420P16
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
uint16_t * temp16[3]
identical to temp but 16bit type
uint8_t len[4][MAX_VLC_N]
av_cold int ff_huffyuv_alloc_temp(HYuvContext *s)
static int get_bits_left(GetBitContext *gb)
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
#define UPDATE_CACHE(name, gb)
static double alpha(void *priv, double x, double y)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
av_cold void ff_huffyuv_common_end(HYuvContext *s)
#define init_vlc(vlc, nb_bits, nb_codes,bits, bits_wrap, bits_size,codes, codes_wrap, codes_size,flags)
static const unsigned char classic_add_luma[256]
uint8_t * bitstream_buffer
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
#define AV_PIX_FMT_YUVA444P16
const char * name
Name of the codec implementation.
#define AV_PIX_FMT_YUV444P10
static const uint8_t offset[127][2]
#define CLOSE_READER(name, gb)
huffyuv codec for libavcodec.
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
#define classic_shift_chroma_table_size
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
#define AV_PIX_FMT_YUV422P9
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
#define AV_CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
void(* draw_horiz_band)(struct AVCodecContext *s, const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], int y, int type, int height)
If non NULL, 'draw_horiz_band' is called by the libavcodec decoder to draw a horizontal band...
#define AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GRAY16
#define VLC_INTERN(dst, table, gb, name, bits, max_depth)
Subset of GET_VLC for use in hand-roller VLC code.
int width
picture width / height.
static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size+AV_INPUT_BUFFER_PADDING_SIZE]
int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table, int n)
#define LAST_SKIP_BITS(name, gb, num)
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
packed RGB 8:8:8, 24bpp, BGRBGR...
#define AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_GBRP14
static void error(const char *err)
#define SHOW_UBITS(name, gb, num)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
#define AV_PIX_FMT_YUV420P16
static void add_bytes(HYuvContext *s, uint8_t *dst, uint8_t *src, int w)
#define AV_PIX_FMT_YUV420P14
AVCodec ff_huffyuv_decoder
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
main external API structure.
packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
#define OPEN_READER(name, gb)
void ff_llviddsp_init(LLVidDSPContext *c)
#define AV_PIX_FMT_YUV420P10
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
static void skip_bits(GetBitContext *s, int n)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
static void decode_gray_bitstream(HYuvContext *s, int count)
#define AV_PIX_FMT_YUV420P9
#define classic_shift_luma_table_size
const VDPAUPixFmtMap * map
static av_const int sign_extend(int val, unsigned bits)
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static av_cold int decode_init(AVCodecContext *avctx)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
#define BITS_LEFT(name, gb)
planar GBRA 4:4:4:4 32bpp
#define AV_PIX_FMT_YUVA444P9
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
av_cold void ff_huffyuv_common_init(AVCodecContext *avctx)
static av_cold int decode_end(AVCodecContext *avctx)
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
static av_always_inline int diff(const uint32_t a, const uint32_t b)
int(* add_left_pred)(uint8_t *dst, const uint8_t *src, ptrdiff_t w, int left)
void(* add_hfyu_left_pred_bgr32)(uint8_t *dst, const uint8_t *src, intptr_t w, uint8_t *left)
static const unsigned char classic_add_chroma[256]
VLC_TYPE(* table)[2]
code, bits
static int left_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int acc)
void(* add_int16)(uint16_t *dst, const uint16_t *src, unsigned mask, int w)
static const unsigned char classic_shift_luma[classic_shift_luma_table_size+AV_INPUT_BUFFER_PADDING_SIZE]
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
uint32_t bits[4][MAX_VLC_N]
This structure stores compressed data.
static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median)
void ff_free_vlc(VLC *vlc)
static int read_len_table(uint8_t *dst, GetBitContext *gb, int n)
#define OP8bits(dst0, dst1, code)
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
#define AV_PIX_FMT_YUV422P16
static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length)
void(* add_median_pred)(uint8_t *dst, const uint8_t *top, const uint8_t *diff, ptrdiff_t w, int *left, int *left_top)
#define AV_PIX_FMT_0RGB32
av_cold void ff_huffyuvdsp_init(HuffYUVDSPContext *c, enum AVPixelFormat pix_fmt)