63 #define OFFSET(x) offsetof(HistogramContext, x) 64 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM 66 #define COMMON_OPTIONS \ 67 { "display_mode", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=2}, 0, 2, FLAGS, "display_mode"}, \ 68 { "d", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=2}, 0, 2, FLAGS, "display_mode"}, \ 69 { "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display_mode" }, \ 70 { "parade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display_mode" }, \ 71 { "stack", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "display_mode" }, \ 72 { "levels_mode", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"}, \ 73 { "m", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"}, \ 74 { "linear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "levels_mode" }, \ 75 { "logarithmic", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "levels_mode" }, \ 76 { "components", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS}, \ 77 { "c", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS}, 178 if (rgb && bits == 8)
180 else if (rgb && bits == 9)
182 else if (rgb && bits == 10)
184 else if (rgb && bits == 12)
298 for (k = 0; k < 4 && out->
data[k]; k++) {
299 const int is_chroma = (k == 1 || k == 2);
304 for (i = 0; i < dst_h ; i++)
311 for (i = 0; i < dst_h ; i++)
312 for (j = 0; j < dst_w; j++)
320 for (m = 0, k = 0; k < s->
ncomp; k++) {
326 unsigned max_hval = 0;
340 for (i = 0; i <
height; i++) {
342 for (j = 0; j <
width; j++)
346 for (i = 0; i <
height; i++) {
347 const uint16_t *
src = (
const uint16_t *)(in->
data[p] + i * in->
linesize[p]);
348 for (j = 0; j <
width; j++)
355 max_hval_log =
log2(max_hval + 1);
363 for (j = 0; j < outlink->
h; j++) {
366 (outlink->
w - 1) * bpp);
368 }
else if (s->
slide == 3) {
370 for (j = 0; j < outlink->
h; j++) {
373 (outlink->
w - 1) * bpp);
382 minh =
FFMIN(minh, i);
383 maxh =
FFMAX(maxh, i);
433 for (l = 0; l < s->
dncomp; l++)
436 out->
data[p][(j + starty) * out->
linesize[p] + startx + i] = 255;
440 out->
data[p][(j + starty) * out->
linesize[p] + startx + i] = i;
446 for (l = 0; l < s->
dncomp; l++)
504 #if CONFIG_HISTOGRAM_FILTER 513 .priv_class = &histogram_class,
518 #if CONFIG_THISTOGRAM_FILTER 527 static const AVOption thistogram_options[] = {
549 .
name =
"thistogram",
556 .priv_class = &thistogram_class,
static enum AVPixelFormat levels_out_yuv8_pix_fmts[]
int plane
Which of the 4 planes contains the component.
#define RGB_TO_Y_BT709(r, g, b)
#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.
#define AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_YUVA422P10
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Main libavfilter public API header.
unsigned histogram[256 *256]
static enum AVPixelFormat levels_out_rgb8_pix_fmts[]
int h
agreed upon image height
#define AV_PIX_FMT_GBRP10
#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.
AVFilterFormatsConfig outcfg
Lists of supported formats / etc.
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
static enum AVPixelFormat levels_out_rgb12_pix_fmts[]
const char * name
Pad name.
AVFilterLink ** inputs
array of pointers to input links
static const uint8_t black_gbrp_color[4]
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.
static av_cold int uninit(AVCodecContext *avctx)
static av_cold int end(AVCodecContext *avctx)
const AVPixFmtDescriptor * odesc
GLsizei GLboolean const GLfloat * value
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
#define RGB_TO_V_BT709(r1, g1, b1, shift)
#define AV_PIX_FMT_YUVA420P9
static const AVFilterPad inputs[]
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
static int config_input(AVFilterLink *inlink)
#define AV_PIX_FMT_YUV422P12
static const AVFilterPad outputs[]
#define RGB_TO_U_BT709(r1, g1, b1, shift)
A filter pad used for either input or output.
A link between two filters.
static const uint8_t white_gbrp_color[4]
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Various defines for YUV<->RGB conversion.
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
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
#define AV_PIX_FMT_GBRAP12
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
static enum AVPixelFormat levels_out_rgb10_pix_fmts[]
static enum AVPixelFormat levels_in_pix_fmts[]
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
int w
agreed upon image width
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
#define AV_PIX_FMT_YUV422P9
uint8_t nb_components
The number of components each pixel has, (1-4)
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
uint8_t envelope_color[4]
AVFilterContext * src
source filter
#define AV_PIX_FMT_YUVA444P10
static const AVOption histogram_options[]
#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
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
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...
const AVPixFmtDescriptor * desc
static int config_output(AVFilterLink *outlink)
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.
Rational number (pair of numerator and denominator).
static const uint8_t white_yuva_color[4]
static const SheerTable rgb[2]
const char * name
Filter name.
#define AV_PIX_FMT_YUV440P12
static enum AVPixelFormat levels_out_yuv12_pix_fmts[]
#define AV_PIX_FMT_YUV420P9
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
AVFilterLink ** outputs
array of pointers to output links
static enum AVPixelFormat levels_out_rgb9_pix_fmts[]
#define AV_PIX_FMT_GBRP12
#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)
AVFILTER_DEFINE_CLASS(histogram)
planar GBRA 4:4:4:4 32bpp
#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)
static enum AVPixelFormat out_pix_fmts[]
AVFilterFormatsConfig incfg
Lists of supported formats / etc.
static int query_formats(AVFilterContext *ctx)
static const uint8_t black_yuva_color[4]
AVFilterContext * dst
dest filter
AVFilter ff_vf_thistogram
static enum AVPixelFormat levels_out_yuv9_pix_fmts[]
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
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.
static enum AVPixelFormat levels_out_yuv10_pix_fmts[]
AVPixelFormat
Pixel format.
const AVFilter * filter
the AVFilter of which this is an instance
#define AV_PIX_FMT_YUVA422P12
#define AV_CEIL_RSHIFT(a, b)