30 static const uint32_t
pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
32 #define SIZEOF_PIXEL ((bit_depth + 7) / 8) 33 #define SIZEOF_COEF (2 * ((bit_depth + 7) / 8)) 34 #define PIXEL_STRIDE 16 36 #define randomize_buffers() \ 39 uint32_t mask = pixel_mask[bit_depth - 8]; \ 40 for (y = 0; y < sz; y++) { \ 41 for (x = 0; x < PIXEL_STRIDE; x += 4) { \ 42 AV_WN32A(src + y * PIXEL_STRIDE + x, rnd() & mask); \ 43 AV_WN32A(dst + y * PIXEL_STRIDE + x, rnd() & mask); \ 45 for (x = 0; x < sz; x++) { \ 46 if (bit_depth == 8) { \ 47 coef[y * sz + x] = src[y * PIXEL_STRIDE + x] - \ 48 dst[y * PIXEL_STRIDE + x]; \ 50 ((int32_t *)coef)[y * sz + x] = \ 51 ((uint16_t *)src)[y * (PIXEL_STRIDE/2) + x] - \ 52 ((uint16_t *)dst)[y * (PIXEL_STRIDE/2) + x]; \ 58 #define dct4x4_impl(size, dctcoef) \ 59 static void dct4x4_##size(dctcoef *coef) \ 63 for (i = 0; i < 4; i++) { \ 64 const int z0 = coef[i*4 + 0] + coef[i*4 + 3]; \ 65 const int z1 = coef[i*4 + 1] + coef[i*4 + 2]; \ 66 const int z2 = coef[i*4 + 0] - coef[i*4 + 3]; \ 67 const int z3 = coef[i*4 + 1] - coef[i*4 + 2]; \ 68 tmp[i + 4*0] = z0 + z1; \ 69 tmp[i + 4*1] = 2*z2 + z3; \ 70 tmp[i + 4*2] = z0 - z1; \ 71 tmp[i + 4*3] = z2 - 2*z3; \ 73 for (i = 0; i < 4; i++) { \ 74 const int z0 = tmp[i*4 + 0] + tmp[i*4 + 3]; \ 75 const int z1 = tmp[i*4 + 1] + tmp[i*4 + 2]; \ 76 const int z2 = tmp[i*4 + 0] - tmp[i*4 + 3]; \ 77 const int z3 = tmp[i*4 + 1] - tmp[i*4 + 2]; \ 78 coef[i*4 + 0] = z0 + z1; \ 79 coef[i*4 + 1] = 2*z2 + z3; \ 80 coef[i*4 + 2] = z0 - z1; \ 81 coef[i*4 + 3] = z2 - 2*z3; \ 83 for (y = 0; y < 4; y++) { \ 84 for (x = 0; x < 4; x++) { \ 85 static const int scale[] = { 13107 * 10, 8066 * 13, 5243 * 16 }; \ 86 const int idx = (y & 1) + (x & 1); \ 87 coef[y*4 + x] = (coef[y*4 + x] * scale[idx] + (1 << 14)) >> 15; \ 92 #define DCT8_1D(src, srcstride, dst, dststride) do { \ 93 const int a0 = (src)[srcstride * 0] + (src)[srcstride * 7]; \ 94 const int a1 = (src)[srcstride * 0] - (src)[srcstride * 7]; \ 95 const int a2 = (src)[srcstride * 1] + (src)[srcstride * 6]; \ 96 const int a3 = (src)[srcstride * 1] - (src)[srcstride * 6]; \ 97 const int a4 = (src)[srcstride * 2] + (src)[srcstride * 5]; \ 98 const int a5 = (src)[srcstride * 2] - (src)[srcstride * 5]; \ 99 const int a6 = (src)[srcstride * 3] + (src)[srcstride * 4]; \ 100 const int a7 = (src)[srcstride * 3] - (src)[srcstride * 4]; \ 101 const int b0 = a0 + a6; \ 102 const int b1 = a2 + a4; \ 103 const int b2 = a0 - a6; \ 104 const int b3 = a2 - a4; \ 105 const int b4 = a3 + a5 + (a1 + (a1 >> 1)); \ 106 const int b5 = a1 - a7 - (a5 + (a5 >> 1)); \ 107 const int b6 = a1 + a7 - (a3 + (a3 >> 1)); \ 108 const int b7 = a3 - a5 + (a7 + (a7 >> 1)); \ 109 (dst)[dststride * 0] = b0 + b1; \ 110 (dst)[dststride * 1] = b4 + (b7 >> 2); \ 111 (dst)[dststride * 2] = b2 + (b3 >> 1); \ 112 (dst)[dststride * 3] = b5 + (b6 >> 2); \ 113 (dst)[dststride * 4] = b0 - b1; \ 114 (dst)[dststride * 5] = b6 - (b5 >> 2); \ 115 (dst)[dststride * 6] = (b2 >> 1) - b3; \ 116 (dst)[dststride * 7] = (b4 >> 2) - b7; \ 119 #define dct8x8_impl(size, dctcoef) \ 120 static void dct8x8_##size(dctcoef *coef) \ 124 for (i = 0; i < 8; i++) \ 125 DCT8_1D(coef + i, 8, tmp + i, 8); \ 127 for (i = 0; i < 8; i++) \ 128 DCT8_1D(tmp + 8*i, 1, coef + i, 8); \ 130 for (y = 0; y < 8; y++) { \ 131 for (x = 0; x < 8; x++) { \ 132 static const int scale[] = { \ 133 13107 * 20, 11428 * 18, 20972 * 32, \ 134 12222 * 19, 16777 * 25, 15481 * 24, \ 136 static const int idxmap[] = { \ 142 const int idx = idxmap[(y & 3) * 4 + (x & 3)]; \ 143 coef[y*8 + x] = ((int64_t)coef[y*8 + x] * \ 144 scale[idx] + (1 << 17)) >> 18; \ 165 if (bit_depth == 8) {
186 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
188 for (sz = 4; sz <= 8; sz += 4) {
196 for (dc = 0; dc <= 1; dc++) {
198 switch ((sz << 1) |
dc) {
204 if (
check_func(
idct,
"h264_idct%d_add%s_%dbpp", sz, dc ?
"_dc" :
"", bit_depth)) {
205 for (align = 0; align < 16; align += sz *
SIZEOF_PIXEL) {
209 memcpy(subcoef0, coef, SIZEOF_COEF);
214 memcpy(dst1, dst, sz * PIXEL_STRIDE);
216 call_ref(dst0, subcoef0, PIXEL_STRIDE);
217 call_new(dst1, subcoef1, PIXEL_STRIDE);
218 if (memcmp(dst0, dst1, sz * PIXEL_STRIDE) ||
219 memcmp(subcoef0, subcoef1, sz * sz * SIZEOF_COEF))
242 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
244 for (func = 0; func < 3; func++) {
247 int sz = 4, intra = 0;
248 int block_offset[16] = { 0 };
252 name =
"h264_idct_add16";
256 name =
"h264_idct_add16intra";
261 name =
"h264_idct8_add4";
265 memset(nnzc, 0, 15 * 8);
267 for (i = 0; i < 16 * 16; i += sz * sz) {
270 int16_t coef[8 * 8 * 2];
272 int block_y = (index / 16) * sz;
273 int block_x = index % 16;
283 for (y = 0; y < sz; y++)
289 memcpy(&coef_full[i *
SIZEOF_COEF/
sizeof(coef[0])],
292 if (intra && nnz == 1)
295 nnzc[
scan8[i / 16]] = nnz;
296 block_offset[i / 16] =
offset;
static void idct(int16_t block[64])
static void check_idct_multiple(void)
static void check_idct(void)
#define dct8x8_impl(size, dctcoef)
static const uint32_t pixel_mask[3]
void(* h264_idct_add16intra)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
void(* h264_idct_add)(uint8_t *dst, int16_t *block, int stride)
void(* h264_idct8_dc_add)(uint8_t *dst, int16_t *block, int stride)
static void dct8x8(int16_t *coef, int bit_depth)
void checkasm_check_h264dsp(void)
static const uint8_t offset[127][2]
void(* h264_idct_add16)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
common internal API header
Context for storing H.264 DSP functions.
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
#define declare_func_emms(cpu_flags, ret,...)
void(* h264_idct8_add)(uint8_t *dst, int16_t *block, int stride)
const AVS_VideoInfo int align
static void dct4x4(int16_t *coef)
Libavcodec external API header.
typedef void(RENAME(mix_any_func_type))
#define AV_CPU_FLAG_MMX
standard MMX
static const uint8_t scan8[16 *3+3]
void(* h264_idct8_add4)(uint8_t *dst, const int *blockoffset, int16_t *block, int stride, const uint8_t nnzc[15 *8])
int(* func)(AVBPrint *dst, const char *in, const char *arg)
#define check_func(func,...)
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-> dc
common internal and external API header
#define dct4x4_impl(size, dctcoef)
av_cold void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, const int chroma_format_idc)
void(* h264_idct_dc_add)(uint8_t *dst, int16_t *block, int stride)
#define LOCAL_ALIGNED_16(t, v,...)
#define randomize_buffers()