64 #define MAX_DURATION (24*60*60*1000000LL)
65 #define OFFSET(x) offsetof(AudioPhaseMeterContext, x)
66 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
67 #define get_duration(index) (index[1] - index[0])
79 {
"phasing",
"set mono and out-of-phase detection output",
OFFSET(do_phasing_detection),
AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1,
FLAGS },
153 if (!strcmp(
s->mpc_str,
"none"))
154 s->draw_median_phase = 0;
156 s->draw_median_phase = 1;
163 static inline int get_x(
float phase,
int w)
165 return (phase + 1.) / 2. * (
w - 1);
172 snprintf(buf,
sizeof(buf),
"lavfi.aphasemeter.%s",
key);
179 if (!
s->is_mono && mono_measurement) {
181 s->start_mono_presence = 1;
182 s->mono_idx[0] = insamples->
pts;
184 if (
s->is_mono && mono_measurement &&
s->start_mono_presence) {
185 s->mono_idx[1] =
s->frame_end;
187 if (mono_duration >=
s->duration) {
190 s->start_mono_presence = 0;
193 if (
s->is_mono && !mono_measurement) {
194 s->mono_idx[1] = insamples ? insamples->
pts :
s->frame_end;
196 if (mono_duration >=
s->duration) {
210 if (!
s->is_out_phase && out_phase_measurement) {
212 s->start_out_phase_presence = 1;
213 s->out_phase_idx[0] = insamples->
pts;
215 if (
s->is_out_phase && out_phase_measurement &&
s->start_out_phase_presence) {
216 s->out_phase_idx[1] =
s->frame_end;
218 if (out_phase_duration >=
s->duration) {
221 s->start_out_phase_presence = 0;
224 if (
s->is_out_phase && !out_phase_measurement) {
225 s->out_phase_idx[1] = insamples ? insamples->
pts :
s->frame_end;
227 if (out_phase_duration >=
s->duration) {
245 const int rc =
s->contrast[0];
246 const int gc =
s->contrast[1];
247 const int bc =
s->contrast[2];
252 int mono_measurement;
253 int out_phase_measurement;
254 float tolerance = 1.0f -
s->tolerance;
255 float angle =
cosf(
s->angle/180.0f*
M_PI);
257 if (
s->do_video && (!
s->out ||
s->out->width != outlink->
w ||
258 s->out->height != outlink->
h)) {
267 for (
i = 0;
i < outlink->
h;
i++)
268 memset(
out->data[0] +
i *
out->linesize[0], 0, outlink->
w * 4);
269 }
else if (
s->do_video) {
271 for (
i = outlink->
h - 1;
i >= 10;
i--)
272 memmove(
out->data[0] + (
i ) *
out->linesize[0],
273 out->data[0] + (
i-1) *
out->linesize[0],
275 for (
i = 0;
i < outlink->
w;
i++)
279 for (
i = 0;
i <
in->nb_samples;
i++) {
280 const float *
src = (
float *)
in->data[0] +
i * 2;
282 const float phase =
isnan(
f) ? 1 :
f;
283 const int x =
get_x(phase,
s->w);
286 dst =
out->data[0] + x * 4;
287 dst[0] =
FFMIN(255, dst[0] + rc);
288 dst[1] =
FFMIN(255, dst[1] + gc);
289 dst[2] =
FFMIN(255, dst[2] + bc);
294 fphase /=
in->nb_samples;
298 if (
s->draw_median_phase) {
299 dst =
out->data[0] +
get_x(fphase,
s->w) * 4;
303 for (
i = 1;
i < 10 &&
i < outlink->
h;
i++)
304 memcpy(
out->data[0] +
i *
out->linesize[0],
out->data[0], outlink->
w * 4);
307 metadata = &
in->metadata;
315 if (
s->do_phasing_detection) {
320 mono_measurement = (tolerance - fphase) < FLT_EPSILON;
321 out_phase_measurement = (angle - fphase) > FLT_EPSILON;
330 s->out->pts =
in->pts;
343 if (
s->do_phasing_detection) {
389 .
name =
"aphasemeter",
397 .priv_class = &aphasemeter_class,
static enum AVSampleFormat sample_fmts[]
static const AVFilterPad outputs[]
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
simple assert() macros that are a bit more flexible than ISO C assert().
static void update_mono_detection(AudioPhaseMeterContext *s, AVFrame *insamples, int mono_measurement)
AVFILTER_DEFINE_CLASS(aphasemeter)
static void add_metadata(AVFrame *insamples, const char *key, char *value)
AVFilter ff_avf_aphasemeter
static int get_x(float phase, int w)
static int query_formats(AVFilterContext *ctx)
#define get_duration(index)
static int config_input(AVFilterLink *inlink)
static const AVFilterPad inputs[]
static void update_out_phase_detection(AudioPhaseMeterContext *s, AVFrame *insamples, int out_phase_measurement)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static av_cold int init(AVFilterContext *ctx)
static av_cold void uninit(AVFilterContext *ctx)
static const AVOption aphasemeter_options[]
static int config_video_output(AVFilterLink *outlink)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Main libavfilter public API header.
#define flags(name, subs,...)
audio channel layout utility functions
@ AV_OPT_TYPE_IMAGE_SIZE
offset must point to two consecutive integers
@ AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
#define AV_CH_LAYOUT_STEREO
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_LOG_INFO
Standard information.
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
AVSampleFormat
Audio sample formats.
#define AV_TIME_BASE
Internal time base represented as integer.
static int ff_insert_outpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new output pad for the filter.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static enum AVPixelFormat pix_fmts[]
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
AVPixelFormat
Pixel format.
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Describe the class of an AVClass context structure.
A list of supported channel layouts.
A link between two filters.
AVFilterFormatsConfig incfg
Lists of supported formats / etc.
int w
agreed upon image width
int max_samples
Maximum number of samples to filter at once.
int h
agreed upon image height
AVFilterFormatsConfig outcfg
Lists of supported formats / etc.
int partial_buf_size
Size of the partial buffer to allocate.
AVFilterContext * src
source filter
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
int sample_rate
samples per second
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
AVFilterContext * dst
dest filter
int min_samples
Minimum number of samples to filter at once.
A filter pad used for either input or output.
const char * name
Pad name.
const char * name
Filter name.
This structure describes decoded (raw) audio or video data.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
AVDictionary * metadata
metadata.
Rational number (pair of numerator and denominator).
int start_out_phase_presence
timestamp utils, mostly useful for debugging/logging purposes
#define av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.