58 #define OFFSET(x) offsetof(SPPContext, x)
59 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
82 { 0, 48, 12, 60, 3, 51, 15, 63 },
83 { 32, 16, 44, 28, 35, 19, 47, 31 },
84 { 8, 56, 4, 52, 11, 59, 7, 55 },
85 { 40, 24, 36, 20, 43, 27, 39, 23 },
86 { 2, 50, 14, 62, 1, 49, 13, 61 },
87 { 34, 18, 46, 30, 33, 17, 45, 29 },
88 { 10, 58, 6, 54, 9, 57, 5, 53 },
89 { 42, 26, 38, 22, 41, 25, 37, 21 },
95 {0,0}, {2,2}, {6,4}, {4,6},
96 {0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7},
98 {0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3},
99 {0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
101 {0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7},
102 {2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
103 {4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
104 {6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
106 {0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2},
107 {0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
108 {1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
109 {1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
110 {0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
111 {0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
112 {1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
113 {1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
117 int qp,
const uint8_t *permutation)
122 unsigned threshold1 = qp * ((1<<4) - bias) - 1;
123 unsigned threshold2 = threshold1 << 1;
125 memset(dst, 0, 64 *
sizeof(dst[0]));
126 dst[0] = (src[0] + 4) >> 3;
128 for (i = 1; i < 64; i++) {
130 if (((
unsigned)(level + threshold1)) > threshold2) {
131 const int j = permutation[i];
132 dst[j] = (level + 4) >> 3;
138 int qp,
const uint8_t *permutation)
143 unsigned threshold1 = qp * ((1<<4) - bias) - 1;
144 unsigned threshold2 = threshold1 << 1;
146 memset(dst, 0, 64 *
sizeof(dst[0]));
147 dst[0] = (src[0] + 4) >> 3;
149 for (i = 1; i < 64; i++) {
151 if (((
unsigned)(level + threshold1)) > threshold2) {
152 const int j = permutation[i];
153 if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
154 else dst[j] = (level + threshold1 + 4) >> 3;
160 int dst_linesize,
int src_linesize,
166 #define STORE(pos) do { \
167 temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
169 temp = ~(temp >> 31); \
170 dst[x + y*dst_linesize + pos] = temp; \
173 for (y = 0; y <
height; y++) {
175 for (x = 0; x <
width; x += 8) {
190 int dst_linesize,
int src_linesize,
197 #define STORE16(pos) do { \
198 temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
200 temp = ~(temp >> 31); \
201 dst[x + y*dst_linesize + pos] = temp; \
204 for (y = 0; y <
height; y++) {
206 for (x = 0; x <
width; x += 8) {
220 static inline void add_block(uint16_t *dst,
int linesize,
const int16_t
block[64])
224 for (y = 0; y < 8; y++) {
225 *(uint32_t *)&dst[0 + y*linesize] += *(uint32_t *)&block[0 + y*8];
226 *(uint32_t *)&dst[2 + y*linesize] += *(uint32_t *)&block[2 + y*8];
227 *(uint32_t *)&dst[4 + y*linesize] += *(uint32_t *)&block[4 + y*8];
228 *(uint32_t *)&dst[6 + y*linesize] += *(uint32_t *)&block[6 + y*8];
233 int dst_linesize,
int src_linesize,
int width,
int height,
234 const uint8_t *qp_table,
int qp_stride,
int is_luma,
int depth)
240 int16_t *
block = (int16_t *)block_align;
241 int16_t *block2 = (int16_t *)(block_align + 16);
242 uint16_t *psrc16 = (uint16_t*)p->
src;
243 const int sample_bytes = (depth+7) / 8;
245 for (y = 0; y <
height; y++) {
246 int index = 8 + 8*linesize + y*linesize;
247 memcpy(p->
src + index*sample_bytes, src + y*src_linesize, width*sample_bytes);
248 if (sample_bytes == 1) {
249 for (x = 0; x < 8; x++) {
250 p->
src[index - x - 1] = p->
src[index + x ];
251 p->
src[index + width + x ] = p->
src[index + width - x - 1];
254 for (x = 0; x < 8; x++) {
255 psrc16[index - x - 1] = psrc16[index + x ];
256 psrc16[index + width + x ] = psrc16[index + width - x - 1];
260 for (y = 0; y < 8; y++) {
261 memcpy(p->
src + ( 7-y)*linesize * sample_bytes, p->
src + ( y+8)*linesize * sample_bytes, linesize * sample_bytes);
262 memcpy(p->
src + (height+8+y)*linesize * sample_bytes, p->
src + (height-y+7)*linesize * sample_bytes, linesize * sample_bytes);
265 for (y = 0; y < height + 8; y += 8) {
266 memset(p->
temp + (8 + y) * linesize, 0, 8 * linesize *
sizeof(*p->
temp));
267 for (x = 0; x < width + 8; x += 8) {
273 const int qps = 3 + is_luma;
274 qp = qp_table[(
FFMIN(x, width - 1) >> qps) + (
FFMIN(y, height - 1) >> qps) * qp_stride];
277 for (i = 0; i <
count; i++) {
278 const int x1 = x +
offset[i + count - 1][0];
279 const int y1 = y + offset[i + count - 1][1];
280 const int index = x1 + y1*linesize;
281 p->
dct->
get_pixels(block, p->
src + sample_bytes*index, sample_bytes*linesize);
289 if (sample_bytes == 1) {
291 dst_linesize, linesize, width,
296 dst_linesize/2, linesize, width,
332 const int h =
FFALIGN(inlink->
h + 16, 16);
360 const int8_t *qp_table =
NULL;
393 av_assert0(w * h <= spp->non_b_qp_alloc_size);
402 if (qp_table || spp->
qp) {
409 const int aligned_w =
FFALIGN(inlink->
w, 8);
410 const int aligned_h =
FFALIGN(inlink->
h, 8);
422 filter(spp, out->
data[0], in->
data[0], out->
linesize[0], in->
linesize[0], inlink->
w, inlink->
h, qp_table, qp_stride, 1, depth);
425 filter(spp, out->
data[1], in->
data[1], out->
linesize[1], in->
linesize[1], cw, ch, qp_table, qp_stride, 0, depth);
426 filter(spp, out->
data[2], in->
data[2], out->
linesize[2], in->
linesize[2], cw, ch, qp_table, qp_stride, 0, depth);
436 inlink->
w, inlink->
h);
443 char *res,
int res_len,
int flags)
447 if (!strcmp(cmd,
"level")) {
448 if (!strcmp(args,
"max"))
527 .priv_class = &spp_class,
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
av_cold void ff_spp_init_x86(SPPContext *s)
static int query_formats(AVFilterContext *ctx)
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static const AVFilterPad outputs[]
#define LIBAVUTIL_VERSION_INT
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
int h
agreed upon image height
void(* requantize)(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
#define AV_PIX_FMT_GBRP10
#define DECLARE_ALIGNED(n, t, v)
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
int8_t * av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
static const uint8_t ldither[8][8]
static void softthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
int is_disabled
the enabled state from the last expression evaluation
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
const char * name
Pad name.
static av_cold void uninit(AVFilterContext *ctx)
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
static void store_slice16_c(uint16_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8], int depth)
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
static void add_block(uint16_t *dst, int linesize, const int16_t block[64])
static const AVClass * child_class_next(const AVClass *prev)
A filter pad used for either input or output.
A link between two filters.
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
uint16_t depth_minus1
Number of bits in the component minus 1.
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
int width
width and height of the video frame
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
static const uint16_t mask[17]
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 const uint8_t dither[8][8]
void * priv
private data for use by the filter
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
static const uint8_t offset[127][2]
int avcodec_dct_init(AVDCT *dsp)
static const AVClass spp_class
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
#define AV_PIX_FMT_YUV422P9
AVDCT * avcodec_dct_alloc(void)
Allocates a AVDCT context.
uint8_t idct_permutation[64]
IDCT input permutation.
enum AVPictureType pict_type
Picture type of the frame.
static void hardthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
#define FF_CEIL_RSHIFT(a, b)
static int config_input(AVFilterLink *inlink)
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
#define AV_PIX_FMT_YUV444P9
void(* fdct)(int16_t *block)
int format
agreed upon media format
const AVClass * avcodec_dct_get_class(void)
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static const AVFilterPad spp_outputs[]
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
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-> in
BYTE int const BYTE int int int height
#define AV_PIX_FMT_YUV420P10
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Describe the class of an AVClass context structure.
static const AVFilterPad inputs[]
const char * name
Filter name.
void(* get_pixels)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
#define AV_PIX_FMT_YUV420P9
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
AVFilterLink ** outputs
array of pointers to output links
static const AVFilterPad spp_inputs[]
static int ff_norm_qscale(int qscale, int type)
Normalize the qscale factor FIXME the H264 qscale is a log based scale, mpeg1/2 is not...
#define AV_PIX_FMT_YUV422P10
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)
static void * child_next(void *obj, void *prev)
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
void *(* child_next)(void *obj, void *prev)
Return next AVOptions-enabled child or NULL.
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
void(* store_slice)(uint8_t *dst, const int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale, const uint8_t dither[8][8])
static void store_slice_c(uint8_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8])
AVFilterContext * dst
dest filter
void(* idct)(int16_t *block)
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-> out
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
#define av_malloc_array(a, b)
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
static const AVOption spp_options[]
AVPixelFormat
Pixel format.
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
static void filter(SPPContext *p, uint8_t *dst, uint8_t *src, int dst_linesize, int src_linesize, int width, int height, const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.