31 #define AIC_HDR_SIZE 24
32 #define AIC_BAND_COEFFS (64 + 32 + 192 + 96)
47 8, 16, 19, 22, 22, 26, 26, 27,
48 16, 16, 22, 22, 26, 27, 27, 29,
49 19, 22, 26, 26, 27, 29, 29, 35,
50 22, 24, 27, 27, 29, 32, 34, 38,
51 26, 27, 29, 29, 32, 35, 38, 46,
52 27, 29, 34, 34, 35, 40, 46, 56,
53 29, 34, 34, 37, 40, 48, 56, 69,
54 34, 37, 38, 40, 48, 58, 69, 83,
58 0, 4, 1, 2, 5, 8, 12, 9,
59 6, 3, 7, 10, 13, 14, 11, 15,
60 47, 43, 46, 45, 42, 39, 35, 38,
61 41, 44, 40, 37, 34, 33, 36, 32,
62 16, 20, 17, 18, 21, 24, 28, 25,
63 22, 19, 23, 26, 29, 30, 27, 31,
64 63, 59, 62, 61, 58, 55, 51, 54,
65 57, 60, 56, 53, 50, 49, 52, 48,
69 64, 72, 65, 66, 73, 80, 88, 81,
70 74, 67, 75, 82, 89, 90, 83, 91,
71 0, 4, 1, 2, 5, 8, 12, 9,
72 6, 3, 7, 10, 13, 14, 11, 15,
73 16, 20, 17, 18, 21, 24, 28, 25,
74 22, 19, 23, 26, 29, 30, 27, 31,
75 155, 147, 154, 153, 146, 139, 131, 138,
76 145, 152, 144, 137, 130, 129, 136, 128,
77 47, 43, 46, 45, 42, 39, 35, 38,
78 41, 44, 40, 37, 34, 33, 36, 32,
79 63, 59, 62, 61, 58, 55, 51, 54,
80 57, 60, 56, 53, 50, 49, 52, 48,
81 96, 104, 97, 98, 105, 112, 120, 113,
82 106, 99, 107, 114, 121, 122, 115, 123,
83 68, 76, 69, 70, 77, 84, 92, 85,
84 78, 71, 79, 86, 93, 94, 87, 95,
85 100, 108, 101, 102, 109, 116, 124, 117,
86 110, 103, 111, 118, 125, 126, 119, 127,
87 187, 179, 186, 185, 178, 171, 163, 170,
88 177, 184, 176, 169, 162, 161, 168, 160,
89 159, 151, 158, 157, 150, 143, 135, 142,
90 149, 156, 148, 141, 134, 133, 140, 132,
91 191, 183, 190, 189, 182, 175, 167, 174,
92 181, 188, 180, 173, 166, 165, 172, 164,
96 0, 4, 1, 2, 5, 8, 12, 9,
97 6, 3, 7, 10, 13, 14, 11, 15,
98 31, 27, 30, 29, 26, 23, 19, 22,
99 25, 28, 24, 21, 18, 17, 20, 16,
100 32, 36, 33, 34, 37, 40, 44, 41,
101 38, 35, 39, 42, 45, 46, 43, 47,
102 63, 59, 62, 61, 58, 55, 51, 54,
103 57, 60, 56, 53, 50, 49, 52, 48,
107 16, 24, 17, 18, 25, 32, 40, 33,
108 26, 19, 27, 34, 41, 42, 35, 43,
109 0, 4, 1, 2, 5, 8, 12, 9,
110 6, 3, 7, 10, 13, 14, 11, 15,
111 20, 28, 21, 22, 29, 36, 44, 37,
112 30, 23, 31, 38, 45, 46, 39, 47,
113 95, 87, 94, 93, 86, 79, 71, 78,
114 85, 92, 84, 77, 70, 69, 76, 68,
115 63, 59, 62, 61, 58, 55, 51, 54,
116 57, 60, 56, 53, 50, 49, 52, 48,
117 91, 83, 90, 89, 82, 75, 67, 74,
118 81, 88, 80, 73, 66, 65, 72, 64,
119 112, 120, 113, 114, 121, 128, 136, 129,
120 122, 115, 123, 130, 137, 138, 131, 139,
121 96, 100, 97, 98, 101, 104, 108, 105,
122 102, 99, 103, 106, 109, 110, 107, 111,
123 116, 124, 117, 118, 125, 132, 140, 133,
124 126, 119, 127, 134, 141, 142, 135, 143,
125 191, 183, 190, 189, 182, 175, 167, 174,
126 181, 188, 180, 173, 166, 165, 172, 164,
127 159, 155, 158, 157, 154, 151, 147, 150,
128 153, 156, 152, 149, 146, 145, 148, 144,
129 187, 179, 186, 185, 178, 171, 163, 170,
130 177, 184, 176, 169, 162, 161, 168, 160,
171 if (frame_size > size) {
178 "Picture dimension changed: old: %d x %d, new: %d x %d\n",
182 ctx->
quant = src[15];
188 #define GET_CODE(val, type, add_bits) \
191 val = get_ue_golomb(gb); \
193 val = get_unary(gb, 1, 31); \
195 val = (val << add_bits) + get_bits(gb, add_bits); \
199 int band,
int slice_width,
int force_chroma)
201 int has_skips, coeff_type, coeff_bits, skip_type,
skip_bits;
214 for (mb = 0; mb < slice_width; mb++) {
217 GET_CODE(val, skip_type, skip_bits);
221 if (idx >= num_coeffs)
223 GET_CODE(val, coeff_type, coeff_bits);
225 if (val >= 0x10000 || val < 0)
227 dst[scan[idx]] = val;
228 }
while (idx < num_coeffs - 1);
232 for (mb = 0; mb < slice_width; mb++) {
233 for (idx = 0; idx < num_coeffs; idx++) {
234 GET_CODE(val, coeff_type, coeff_bits);
235 if (val >= 0x10000 || val < 0)
237 dst[scan[idx]] = val;
246 int16_t **base, int16_t **ext)
250 for (i = 0; i < 4; i++) {
251 for (j = 0; j < 4; j++)
252 dst[scan[i * 8 + j]] = (*base)[j];
253 for (j = 0; j < 4; j++)
254 dst[scan[i * 8 + j + 4]] = (*ext)[j];
259 for (j = 0; j < 8; j++)
260 dst[scan[i * 8 + j]] = (*ext)[j];
266 int16_t **base, int16_t **ext,
272 for (i = 0; i < 8; i++) {
273 for (j = 0; j < 4; j++)
274 dst[scan[i * 8 + j]] = (*base)[j];
275 for (j = 0; j < 4; j++)
276 dst[scan[i * 8 + j + 4]] = (*ext)[j];
281 for (i = 0; i < 64; i++)
282 dst[scan[i]] = (*ext)[i];
291 for (i = 0; i < 64; i++) {
292 int val = (uint16_t)block[i];
301 const uint8_t *src,
int src_size)
314 Y = ctx->
frame->
data[0] + mb_x * 16 + mb_y * 16 * ystride;
315 for (i = 0; i < 2; i++)
316 C[i] = ctx->
frame->
data[i + 1] + mb_x * 8
328 for (mb = 0; mb < slice_width; mb++) {
329 for (blk = 0; blk < 4; blk++) {
335 &base_y, &ext_y, blk);
340 dst = Y + (blk >> 1) * 8 * ystride + (blk & 1) * 8;
344 dst = Y + (blk & 1) * 8 + (blk >> 1) * ystride;
351 for (blk = 0; blk < 2; blk++) {
370 int buf_size = avpkt->
size;
382 if (buf_size < off) {
398 slice_size = bytestream2_get_le16(&gb) * 4;
399 if (slice_size + off > buf_size || !slice_size) {
405 buf + off, slice_size)) < 0)
429 for (i = 0; i < 64; i++)
438 for (i = 1; i < 32; i++) {
static const int aic_num_band_coeffs[NUM_BANDS]
int16_t * data_ptr[NUM_BANDS]
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
av_cold void ff_dsputil_init(DSPContext *c, AVCodecContext *avctx)
void(* put_signed_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
#define DECLARE_ALIGNED(n, t, v)
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_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
static const uint8_t aic_c_scan[64]
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
bitstream reader API header.
uint8_t idct_permutation[64]
idct input permutation.
static const uint8_t * aic_scan[NUM_BANDS]
static void unquant_block(int16_t *block, int q)
static const uint8_t frame_size[4]
static av_cold int aic_decode_init(AVCodecContext *avctx)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static int aic_decode_header(AICContext *ctx, const uint8_t *src, int size)
static const uint8_t aic_y_scan[64]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_cold int aic_decode_close(AVCodecContext *avctx)
void av_log(void *avcl, int level, const char *fmt,...)
const char * name
Name of the codec implementation.
static int aic_decode_coeffs(GetBitContext *gb, int16_t *dst, int band, int slice_width, int force_chroma)
void(* idct)(int16_t *block)
static const uint8_t aic_c_ext_scan[192]
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
static const uint8_t aic_quant_matrix[64]
static const int aic_band_off[NUM_BANDS]
static int aic_decode_slice(AICContext *ctx, int mb_x, int mb_y, const uint8_t *src, int src_size)
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
static void close(AVCodecParserContext *s)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable)
static unsigned int get_bits1(GetBitContext *s)
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 recombine_block(int16_t *dst, const uint8_t *scan, int16_t **base, int16_t **ext)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
common internal api header.
static void recombine_block_il(int16_t *dst, const uint8_t *scan, int16_t **base, int16_t **ext, int block_no)
static av_cold int init(AVCodecParserContext *s)
#define GET_CODE(val, type, add_bits)
static int aic_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
int key_frame
1 -> keyframe, 0-> not
static const uint8_t aic_y_ext_scan[192]
This structure stores compressed data.