45 #define OFFSET(x) offsetof(PP7Context, x) 46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 59 { 0, 48, 12, 60, 3, 51, 15, 63, },
60 { 32, 16, 44, 28, 35, 19, 47, 31, },
61 { 8, 56, 4, 52, 11, 59, 7, 55, },
62 { 40, 24, 36, 20, 43, 27, 39, 23, },
63 { 2, 50, 14, 62, 1, 49, 13, 61, },
64 { 34, 18, 46, 30, 33, 17, 45, 29, },
65 { 10, 58, 6, 54, 9, 57, 5, 53, },
66 { 42, 26, 38, 22, 41, 25, 37, 21, },
73 #define SN1 2.2360679775 74 #define SN2 3.16227766017 79 N / (N1 *
N0),
N / (N1 * N1),
N / (N1 *
N0),
N / (N1 * N2),
81 N / (N2 *
N0),
N / (N2 * N1),
N / (N2 *
N0),
N / (N2 * N2),
89 for (qp = 0; qp < 99; qp++) {
90 for (i = 0; i < 16; i++) {
100 for (i = 0; i < 4; i++) {
112 dst[1] = 2 * s3 +
s2;
113 dst[3] = s3 - 2 *
s2;
123 for (i = 0; i < 4; i++) {
124 int s0 = src[0 * 4] + src[6 * 4];
125 int s1 = src[1 * 4] + src[5 * 4];
126 int s2 = src[2 * 4] + src[4 * 4];
135 dst[1 * 4] = 2 * s3 +
s2;
136 dst[3 * 4] = s3 - 2 *
s2;
148 for (i = 1; i < 16; i++) {
149 unsigned int threshold1 = p->
thres2[qp][
i];
150 unsigned int threshold2 = threshold1 << 1;
152 if (((
unsigned)(level + threshold1)) > threshold2)
153 a += level * factor[
i];
155 return (a + (1 << 11)) >> 12;
164 for (i = 1; i < 16; i++) {
165 unsigned int threshold1 = p->
thres2[qp][
i];
166 unsigned int threshold2 = threshold1 << 1;
168 if (((
unsigned)(level + threshold1)) > threshold2) {
169 if (((
unsigned)(level + 2 * threshold1)) > 2 * threshold2)
170 a += level * factor[
i];
173 a += 2 * (level - (
int)threshold1) * factor[
i];
175 a += 2 * (level + (
int)threshold1) * factor[
i];
179 return (a + (1 << 11)) >> 12;
188 for (i = 1; i < 16; i++) {
189 unsigned int threshold1 = p->
thres2[qp][
i];
190 unsigned int threshold2 = threshold1 << 1;
192 if (((
unsigned)(level + threshold1)) > threshold2) {
194 a += (level - (
int)threshold1) * factor[
i];
196 a += (level + (
int)threshold1) * factor[
i];
199 return (a + (1 << 11)) >> 12;
203 int dst_stride,
int src_stride,
205 uint8_t *qp_store,
int qp_stride,
int is_luma)
211 int16_t *
temp = (int16_t *)(p->
src + 32);
213 if (!src || !dst)
return;
214 for (y = 0; y <
height; y++) {
216 memcpy(p_src + index, src + y * src_stride, width);
217 for (x = 0; x < 8; x++) {
218 p_src[index - x - 1]= p_src[index + x ];
219 p_src[index + width + x ]= p_src[index + width - x - 1];
222 for (y = 0; y < 8; y++) {
223 memcpy(p_src + ( 7 - y ) * stride, p_src + ( y + 8 ) * stride, stride);
224 memcpy(p_src + (height + 8 + y) * stride, p_src + (height - y + 7) * stride, stride);
228 for (y = 0; y <
height; y++) {
229 for (x = -8; x < 0; x += 4) {
230 const int index = x + y * stride + (8 - 3) * (1 + stride) + 8;
232 int16_t *tp =
temp + 4 * x;
234 dctA_c(tp + 4 * 8, src, stride);
236 for (x = 0; x <
width; ) {
237 const int qps = 3 + is_luma;
239 int end =
FFMIN(x + 8, width);
244 qp = qp_store[ (
FFMIN(x, width - 1) >> qps) + (
FFMIN(y, height - 1) >> qps) * qp_stride];
247 for (; x < end; x++) {
248 const int index = x + y * stride + (8 - 3) * (1 + stride) + 8;
250 int16_t *tp =
temp + 4 * x;
254 dctA_c(tp + 4 * 8, src, stride);
259 v = (v +
dither[y & 7][x & 7]) >> 6;
260 if ((
unsigned)v > 255)
262 dst[x + y * dst_stride] = v;
290 const int h =
FFALIGN(inlink->
h + 16, 16);
327 int8_t *qp_table =
NULL;
344 const int aligned_w =
FFALIGN(inlink->
w, 8);
345 const int aligned_h =
FFALIGN(inlink->
h, 8);
358 if (qp_table || pp7->
qp) {
361 inlink->
w, inlink->
h, qp_table, qp_stride, 1);
363 cw, ch, qp_table, qp_stride, 0);
365 cw, ch, qp_table, qp_stride, 0);
374 inlink->
w, inlink->
h);
413 .priv_class = &pp7_class,
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
int h
agreed upon image height
AVFILTER_DEFINE_CLASS(pp7)
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
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.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
The exact code depends on how similar the blocks are and how related they are to the block
static int query_formats(AVFilterContext *ctx)
static const AVOption pp7_options[]
int(* requantize)(struct PP7Context *p, int16_t *src, int qp)
static int softthresh_c(PP7Context *p, int16_t *src, int qp)
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
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...
A filter pad used for either input or output.
A link between two filters.
static av_cold void uninit(AVFilterContext *ctx)
static void init_thres2(PP7Context *p)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, int *qscale_type)
Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 macroblock, stored in raster order - from AVVideoEncParams side data.
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. ...
void * priv
private data for use by the filter
static void dctB_c(int16_t *dst, int16_t *src)
simple assert() macros that are a bit more flexible than ISO C assert().
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
static const AVFilterPad pp7_outputs[]
static void filter(PP7Context *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, uint8_t *qp_store, int qp_stride, int is_luma)
static const AVFilterPad outputs[]
int format
agreed upon media format
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 int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
void ff_pp7_init_x86(PP7Context *pp7)
static const int factor[16]
const char * name
Filter name.
#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 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...
static enum AVPixelFormat pix_fmts[]
#define flags(name, subs,...)
static const uint8_t dither[8][8]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static void dctA_c(int16_t *dst, uint8_t *src, int stride)
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
static const AVFilterPad pp7_inputs[]
GLint GLenum GLboolean GLsizei stride
void(* dctB)(int16_t *dst, int16_t *src)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
AVFilterContext * dst
dest filter
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
#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.
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
AVPixelFormat
Pixel format.
mode
Use these values in ebur128_init (or'ed).
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
static int config_input(AVFilterLink *inlink)
#define AV_CEIL_RSHIFT(a, b)