35 #define IdctAdjustBeforeShift 8
44 #define M(a, b) (((a) * (b)) >> 16)
47 int16_t *input,
int type)
51 int A,
B,
C,
D, Ad, Bd, Cd, Dd,
E,
F,
G,
H;
52 int Ed, Gd, Add, Bdd, Fd, Hd;
57 for (i = 0; i < 8; i++) {
59 if (ip[0 * 8] | ip[1 * 8] | ip[2 * 8] | ip[3 * 8] |
60 ip[4 * 8] | ip[5 * 8] | ip[6 * 8] | ip[7 * 8]) {
72 E =
M(
xC4S4, (ip[0 * 8] + ip[4 * 8]));
73 F =
M(
xC4S4, (ip[0 * 8] - ip[4 * 8]));
106 for (i = 0; i < 8; i++) {
108 if (ip[1] | ip[2] | ip[3] |
109 ip[4] | ip[5] | ip[6] | ip[7]) {
121 E =
M(
xC4S4, (ip[0] + ip[4])) + 8;
122 F =
M(
xC4S4, (ip[0] - ip[4])) + 8;
143 dst[0 *
stride] = av_clip_uint8((Gd + Cd) >> 4);
144 dst[7 *
stride] = av_clip_uint8((Gd - Cd) >> 4);
146 dst[1 *
stride] = av_clip_uint8((Add + Hd) >> 4);
147 dst[2 *
stride] = av_clip_uint8((Add - Hd) >> 4);
149 dst[3 *
stride] = av_clip_uint8((Ed + Dd) >> 4);
150 dst[4 *
stride] = av_clip_uint8((Ed - Dd) >> 4);
152 dst[5 *
stride] = av_clip_uint8((Fd + Bdd) >> 4);
153 dst[6 *
stride] = av_clip_uint8((Fd - Bdd) >> 4);
155 dst[0 *
stride] = av_clip_uint8(dst[0 * stride] + ((Gd + Cd) >> 4));
156 dst[7 *
stride] = av_clip_uint8(dst[7 * stride] + ((Gd - Cd) >> 4));
158 dst[1 *
stride] = av_clip_uint8(dst[1 * stride] + ((Add + Hd) >> 4));
159 dst[2 *
stride] = av_clip_uint8(dst[2 * stride] + ((Add - Hd) >> 4));
161 dst[3 *
stride] = av_clip_uint8(dst[3 * stride] + ((Ed + Dd) >> 4));
162 dst[4 *
stride] = av_clip_uint8(dst[4 * stride] + ((Ed - Dd) >> 4));
164 dst[5 *
stride] = av_clip_uint8(dst[5 * stride] + ((Fd + Bdd) >> 4));
165 dst[6 *
stride] = av_clip_uint8(dst[6 * stride] + ((Fd - Bdd) >> 4));
179 int v = (
xC4S4 * ip[0] + (IdctAdjustBeforeShift << 16)) >> 20;
180 dst[0 *
stride] = av_clip_uint8(dst[0 * stride] + v);
181 dst[1 *
stride] = av_clip_uint8(dst[1 * stride] + v);
182 dst[2 *
stride] = av_clip_uint8(dst[2 * stride] + v);
183 dst[3 *
stride] = av_clip_uint8(dst[3 * stride] + v);
184 dst[4 *
stride] = av_clip_uint8(dst[4 * stride] + v);
185 dst[5 *
stride] = av_clip_uint8(dst[5 * stride] + v);
186 dst[6 *
stride] = av_clip_uint8(dst[6 * stride] + v);
187 dst[7 *
stride] = av_clip_uint8(dst[7 * stride] + v);
200 idct(dest, line_size, block, 1);
201 memset(block, 0,
sizeof(*block) * 64);
207 idct(dest, line_size, block, 2);
208 memset(block, 0,
sizeof(*block) * 64);
214 int i,
dc = (block[0] + 15) >> 5;
216 for (i = 0; i < 8; i++) {
217 dest[0] = av_clip_uint8(dest[0] + dc);
218 dest[1] = av_clip_uint8(dest[1] + dc);
219 dest[2] = av_clip_uint8(dest[2] + dc);
220 dest[3] = av_clip_uint8(dest[3] + dc);
221 dest[4] = av_clip_uint8(dest[4] + dc);
222 dest[5] = av_clip_uint8(dest[5] + dc);
223 dest[6] = av_clip_uint8(dest[6] + dc);
224 dest[7] = av_clip_uint8(dest[7] + dc);
231 int *bounding_values)
235 const int nstride = -
stride;
237 for (end = first_pixel + 8; first_pixel <
end; first_pixel++) {
238 filter_value = (first_pixel[2 * nstride] - first_pixel[
stride]) +
239 (first_pixel[0] - first_pixel[nstride]) * 3;
240 filter_value = bounding_values[(filter_value + 4) >> 3];
242 first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value);
243 first_pixel[0] = av_clip_uint8(first_pixel[0] - filter_value);
248 int *bounding_values)
253 for (end = first_pixel + 8 * stride; first_pixel !=
end; first_pixel +=
stride) {
254 filter_value = (first_pixel[-2] - first_pixel[1]) +
255 (first_pixel[ 0] - first_pixel[-1]) * 3;
256 filter_value = bounding_values[(filter_value + 4) >> 3];
258 first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value);
259 first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value);
268 for (i = 0; i <
h; i++) {
271 a =
AV_RN32(&src1[i * stride]);
272 b =
AV_RN32(&src2[i * stride]);
274 a =
AV_RN32(&src1[i * stride + 4]);
275 b =
AV_RN32(&src2[i * stride + 4]);
void(* put_no_rnd_pixels_l2)(uint8_t *dst, const uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
Copy 8xH pixels from source to destination buffer using a bilinear filter with no rounding (i...
void(* idct_put)(uint8_t *dest, int line_size, int16_t *block)
void(* h_loop_filter)(uint8_t *src, int stride, int *bounding_values)
static void vp3_idct_put_c(uint8_t *dest, int line_size, int16_t *block)
static void put_no_rnd_pixels_l2(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, ptrdiff_t stride, int h)
Macro definitions for various function/variable attributes.
void(* idct_dc_add)(uint8_t *dest, int line_size, int16_t *block)
static av_cold int end(AVCodecContext *avctx)
static void vp3_v_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values)
Libavcodec external API header.
static uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int type)
static int filter_value(int in, int rrp[8], int v[9])
void(* idct_add)(uint8_t *dest, int line_size, int16_t *block)
static void vp3_idct_dc_add_c(uint8_t *dest, int line_size, int16_t *block)
av_cold void ff_vp3dsp_init_arm(VP3DSPContext *c, int flags)
static void vp3_h_loop_filter_c(uint8_t *first_pixel, int stride, int *bounding_values)
static void vp3_idct_add_c(uint8_t *dest, int line_size, int16_t *block)
void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
GLint GLenum GLboolean GLsizei stride
common internal and external API header
void(* v_loop_filter)(uint8_t *src, int stride, int *bounding_values)
av_cold void ff_vp3dsp_init_ppc(VP3DSPContext *c, int flags)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> dc
#define IdctAdjustBeforeShift
av_cold void ff_vp3dsp_init(VP3DSPContext *c, int flags)