27 #define FF_BUFQUEUE_SIZE 129 34 #define SIZE FF_BUFQUEUE_SIZE 70 uint8_t *dst, ptrdiff_t dst_linesize,
int w,
int h,
float f);
73 #define OFFSET(x) offsetof(DeflickerContext, x) 74 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM 126 uint8_t *dst, ptrdiff_t dst_linesize,
127 int w,
int h,
float f)
131 for (y = 0; y <
h; y++) {
132 for (x = 0; x <
w; x++) {
144 const uint8_t *ssrc, ptrdiff_t src_linesize,
145 uint8_t *ddst, ptrdiff_t dst_linesize,
146 int w,
int h,
float f)
149 const uint16_t *
src = (
const uint16_t *)ssrc;
150 uint16_t *dst = (uint16_t *)ddst;
151 const int max = (1 << s->
depth) - 1;
154 for (y = 0; y <
h; y++) {
155 for (x = 0; x <
w; x++) {
156 dst[x] =
av_clip(src[x] * f, 0, max);
159 dst += dst_linesize / 2;
160 src += src_linesize / 2;
182 for (y = 0; y < 1 << s->
depth; y++) {
192 const uint16_t *
src = (
const uint16_t *)in->
data[0];
205 for (y = 0; y < 1 << s->
depth; y++) {
219 for (y = 0; y < s->
size; y++) {
234 for (y = 0; y < s->
size; y++) {
238 *f = pow(*f, 1.0f / s->
size);
249 for (y = 0; y < s->
size; y++) {
264 for (y = 0; y < s->
size; y++) {
280 for (y = 0; y < s->
size; y++) {
296 for (y = 0; y < s->
size; y++) {
307 const float *aa =
a, *bb =
b;
308 return round(aa - bb);
388 outlink->
w, outlink->
h, f);
401 av_dict_set(metadata,
"lavfi.deflicker.luminance", value, 0);
404 av_dict_set(metadata,
"lavfi.deflicker.new_luminance", value, 0);
406 snprintf(value,
sizeof(value),
"%f", f - 1.0f);
407 av_dict_set(metadata,
"lavfi.deflicker.relative_change", value, 0);
473 .priv_class = &deflicker_class,
static AVFrame * ff_bufqueue_get(struct FFBufQueue *queue)
Get the first buffer from the queue and remove it.
static int comparef(const void *a, const void *b)
#define AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUVA422P9
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
This structure describes decoded (raw) audio or video data.
static void get_hm_factor(AVFilterContext *ctx, float *f)
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUVA422P10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Main libavfilter public API header.
int h
agreed upon image height
static void get_am_factor(AVFilterContext *ctx, float *f)
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
#define AV_PIX_FMT_YUV420P12
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static const AVOption deflicker_options[]
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
Structure holding the queue.
#define AV_PIX_FMT_GRAY10
const char * name
Pad name.
#define AV_PIX_FMT_GRAY12
AVFilterLink ** inputs
array of pointers to input links
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
GLsizei GLboolean const GLfloat * value
float(* calc_avgy)(AVFilterContext *ctx, AVFrame *in)
static void get_pm_factor(AVFilterContext *ctx, float *f)
#define AV_PIX_FMT_YUVA420P9
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...
#define AVERROR_EOF
End of file.
AVDictionary * metadata
metadata.
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUVA420P16
A filter pad used for either input or output.
A link between two filters.
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
static int deflicker16(AVFilterContext *ctx, const uint8_t *ssrc, ptrdiff_t src_linesize, uint8_t *ddst, ptrdiff_t dst_linesize, int w, int h, float f)
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
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 int request_frame(AVFilterLink *outlink)
void * priv
private data for use by the filter
#define AV_PIX_FMT_YUVA444P16
static float calc_avgy8(AVFilterContext *ctx, AVFrame *in)
static av_always_inline av_const double round(double x)
#define AV_PIX_FMT_YUV444P10
void(* get_factor)(AVFilterContext *ctx, float *f)
static av_cold void uninit(AVFilterContext *ctx)
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
static const AVFilterPad outputs[]
#define AV_PIX_FMT_YUV422P9
uint8_t nb_components
The number of components each pixel has, (1-4)
#define AV_PIX_FMT_GRAY16
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUVA444P12
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
AVFilterContext * src
source filter
#define AV_PIX_FMT_YUVA444P10
static void ff_bufqueue_discard_all(struct FFBufQueue *queue)
Unref and remove all buffers from the queue.
#define AV_PIX_FMT_YUV444P9
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
int format
agreed upon media format
static int query_formats(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV420P16
static void get_median_factor(AVFilterContext *ctx, float *f)
#define AV_PIX_FMT_YUV420P14
unsigned short available
number of available buffers
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static const AVFilterPad inputs[]
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define AV_PIX_FMT_GRAY14
static av_always_inline float cbrtf(float x)
int(* deflicker)(AVFilterContext *ctx, const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float f)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
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
#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 int filter_frame(AVFilterLink *inlink, AVFrame *buf)
AVFILTER_DEFINE_CLASS(deflicker)
const char * name
Filter name.
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV420P9
AVFilterLink ** outputs
array of pointers to output links
static int config_input(AVFilterLink *inlink)
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV444P12
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
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
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
static float calc_avgy16(AVFilterContext *ctx, AVFrame *in)
static int deflicker8(AVFilterContext *ctx, const uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h, float f)
#define AV_PIX_FMT_YUVA444P9
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 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
static void get_qm_factor(AVFilterContext *ctx, float *f)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
static void ff_bufqueue_add(void *log, struct FFBufQueue *queue, AVFrame *buf)
Add a buffer to the queue.
int ff_request_frame(AVFilterLink *link)
Request an input frame from the filter at the other end of the link.
static void get_cm_factor(AVFilterContext *ctx, float *f)
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
int depth
Number of bits in the component.
AVPixelFormat
Pixel format.
static void get_gm_factor(AVFilterContext *ctx, float *f)
mode
Use these values in ebur128_init (or'ed).
#define AV_PIX_FMT_YUV422P16
#define AV_QSORT(p, num, type, cmp)
Quicksort This sort is fast, and fully inplace but not stable and it is possible to construct input t...
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_PIX_FMT_YUVA422P12
#define AV_CEIL_RSHIFT(a, b)
static AVFrame * ff_bufqueue_peek(struct FFBufQueue *queue, unsigned index)
Get a buffer from the queue without altering it.