FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2015 Paul B Mahol
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			#include "libavutil/avassert.h"
22			#include "libavutil/mem.h"
23			#include "libavutil/opt.h"
24			#include "avfilter.h"
25			#include "filters.h"
26			#include "formats.h"
27			#include "video.h"
28			#include "internal.h"
29
30			enum DisplayScale { LINEAR, SQRT, CBRT, LOG, RLOG, NB_SCALES };
31			enum AmplitudeScale { ALINEAR, ALOG, NB_ASCALES };
32			enum SlideMode { REPLACE, SCROLL, NB_SLIDES };
33			enum DisplayMode { SINGLE, SEPARATE, NB_DMODES };
34			enum HistogramMode { ABS, SIGN, NB_HMODES };
35
36			typedef struct AudioHistogramContext {
37			const AVClass *class;
38			AVFrame *out;
39			int w, h;
40			AVRational frame_rate;
41			uint64_t *achistogram;
42			uint64_t *shistogram;
43			int ascale;
44			int scale;
45			float phisto;
46			int histogram_h;
47			int apos;
48			int ypos;
49			int slide;
50			int dmode;
51			int hmode;
52			int dchannels;
53			int count;
54			int frame_count;
55			float *combine_buffer;
56			AVFrame *in[101];
57			int first;
58			int nb_samples;
59
60			int (*get_bin)(float in, int w);
61			} AudioHistogramContext;
62
63			#define OFFSET(x) offsetof(AudioHistogramContext, x)
64			#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
65
66			static const AVOption ahistogram_options[] = {
67			{ "dmode", "set method to display channels", OFFSET(dmode), AV_OPT_TYPE_INT, {.i64=SINGLE}, 0, NB_DMODES-1, FLAGS, .unit = "dmode" },
68			{ "single", "all channels use single histogram", 0, AV_OPT_TYPE_CONST, {.i64=SINGLE}, 0, 0, FLAGS, .unit = "dmode" },
69			{ "separate", "each channel have own histogram", 0, AV_OPT_TYPE_CONST, {.i64=SEPARATE}, 0, 0, FLAGS, .unit = "dmode" },
70			{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
71			{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS },
72			{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
73			{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
74			{ "scale", "set display scale", OFFSET(scale), AV_OPT_TYPE_INT, {.i64=LOG}, LINEAR, NB_SCALES-1, FLAGS, .unit = "scale" },
75			{ "log", "logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=LOG}, 0, 0, FLAGS, .unit = "scale" },
76			{ "sqrt", "square root", 0, AV_OPT_TYPE_CONST, {.i64=SQRT}, 0, 0, FLAGS, .unit = "scale" },
77			{ "cbrt", "cubic root", 0, AV_OPT_TYPE_CONST, {.i64=CBRT}, 0, 0, FLAGS, .unit = "scale" },
78			{ "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=LINEAR}, 0, 0, FLAGS, .unit = "scale" },
79			{ "rlog", "reverse logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=RLOG}, 0, 0, FLAGS, .unit = "scale" },
80			{ "ascale", "set amplitude scale", OFFSET(ascale), AV_OPT_TYPE_INT, {.i64=ALOG}, LINEAR, NB_ASCALES-1, FLAGS, .unit = "ascale" },
81			{ "log", "logarithmic", 0, AV_OPT_TYPE_CONST, {.i64=ALOG}, 0, 0, FLAGS, .unit = "ascale" },
82			{ "lin", "linear", 0, AV_OPT_TYPE_CONST, {.i64=ALINEAR}, 0, 0, FLAGS, .unit = "ascale" },
83			{ "acount", "how much frames to accumulate", OFFSET(count), AV_OPT_TYPE_INT, {.i64=1}, -1, 100, FLAGS },
84			{ "rheight", "set histogram ratio of window height", OFFSET(phisto), AV_OPT_TYPE_FLOAT, {.dbl=0.10}, 0, 1, FLAGS },
85			{ "slide", "set sonogram sliding", OFFSET(slide), AV_OPT_TYPE_INT, {.i64=REPLACE}, 0, NB_SLIDES-1, FLAGS, .unit = "slide" },
86			{ "replace", "replace old rows with new", 0, AV_OPT_TYPE_CONST, {.i64=REPLACE}, 0, 0, FLAGS, .unit = "slide" },
87			{ "scroll", "scroll from top to bottom", 0, AV_OPT_TYPE_CONST, {.i64=SCROLL}, 0, 0, FLAGS, .unit = "slide" },
88			{ "hmode", "set histograms mode", OFFSET(hmode), AV_OPT_TYPE_INT, {.i64=ABS}, 0, NB_HMODES-1, FLAGS, .unit = "hmode" },
89			{ "abs", "use absolute samples", 0, AV_OPT_TYPE_CONST, {.i64=ABS}, 0, 0, FLAGS, .unit = "hmode" },
90			{ "sign", "use unchanged samples", 0, AV_OPT_TYPE_CONST, {.i64=SIGN},0, 0, FLAGS, .unit = "hmode" },
91			{ NULL }
92			};
93
94			AVFILTER_DEFINE_CLASS(ahistogram);
95
96		✗	static int query_formats(AVFilterContext *ctx)
97			{
98		✗	AVFilterFormats *formats = NULL;
99		✗	AVFilterChannelLayouts *layouts = NULL;
100		✗	AVFilterLink *inlink = ctx->inputs[0];
101		✗	AVFilterLink *outlink = ctx->outputs[0];
102			static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE };
103			static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE };
104		✗	int ret = AVERROR(EINVAL);
105
106		✗	formats = ff_make_format_list(sample_fmts);
107		✗	if ((ret = ff_formats_ref (formats, &inlink->outcfg.formats )) < 0 ||
108		✗	(layouts = ff_all_channel_counts()) == NULL ||
109		✗	(ret = ff_channel_layouts_ref (layouts, &inlink->outcfg.channel_layouts)) < 0)
110		✗	return ret;
111
112		✗	formats = ff_all_samplerates();
113		✗	if ((ret = ff_formats_ref(formats, &inlink->outcfg.samplerates)) < 0)
114		✗	return ret;
115
116		✗	formats = ff_make_format_list(pix_fmts);
117		✗	if ((ret = ff_formats_ref(formats, &outlink->incfg.formats)) < 0)
118		✗	return ret;
119
120		✗	return 0;
121			}
122
123		✗	static int config_input(AVFilterLink *inlink)
124			{
125		✗	AVFilterContext *ctx = inlink->dst;
126		✗	AudioHistogramContext *s = ctx->priv;
127
128		✗	s->nb_samples = FFMAX(1, av_rescale(inlink->sample_rate, s->frame_rate.den, s->frame_rate.num));
129		✗	s->dchannels = s->dmode == SINGLE ? 1 : inlink->ch_layout.nb_channels;
130		✗	s->shistogram = av_calloc(s->w, s->dchannels * sizeof(*s->shistogram));
131		✗	if (!s->shistogram)
132		✗	return AVERROR(ENOMEM);
133
134		✗	s->achistogram = av_calloc(s->w, s->dchannels * sizeof(*s->achistogram));
135		✗	if (!s->achistogram)
136		✗	return AVERROR(ENOMEM);
137
138		✗	return 0;
139			}
140
141		✗	static int get_lin_bin_abs(float in, int w)
142			{
143		✗	return lrintf(av_clipf(fabsf(in), 0.f, 1.f) * (w - 1));
144			}
145
146		✗	static int get_lin_bin_sign(float in, int w)
147			{
148		✗	return lrintf((1.f + av_clipf(in, -1.f, 1.f)) * 0.5f * (w - 1));
149			}
150
151		✗	static int get_log_bin_abs(float in, int w)
152			{
153		✗	return lrintf(av_clipf(1.f + log10f(fabsf(in)) / 6.f, 0.f, 1.f) * (w - 1));
154			}
155
156		✗	static int get_log_bin_sign(float in, int w)
157			{
158		✗	return (w / 2) + FFSIGN(in) * lrintf(av_clipf(1.f + log10f(fabsf(in)) / 6.f, 0.f, 1.f) * (w / 2));
159			}
160
161		✗	static int config_output(AVFilterLink *outlink)
162			{
163		✗	AudioHistogramContext *s = outlink->src->priv;
164
165		✗	outlink->w = s->w;
166		✗	outlink->h = s->h;
167		✗	outlink->sample_aspect_ratio = (AVRational){1,1};
168		✗	outlink->frame_rate = s->frame_rate;
169		✗	outlink->time_base = av_inv_q(outlink->frame_rate);
170
171		✗	s->histogram_h = s->h * s->phisto;
172		✗	s->ypos = s->h * s->phisto;
173
174		✗	switch (s->ascale) {
175		✗	case ALINEAR:
176		✗	switch (s->hmode) {
177		✗	case ABS: s->get_bin = get_lin_bin_abs; break;
178		✗	case SIGN: s->get_bin = get_lin_bin_sign; break;
179		✗	default:
180		✗	return AVERROR_BUG;
181			}
182		✗	break;
183		✗	case ALOG:
184		✗	switch (s->hmode) {
185		✗	case ABS: s->get_bin = get_log_bin_abs; break;
186		✗	case SIGN: s->get_bin = get_log_bin_sign; break;
187		✗	default:
188		✗	return AVERROR_BUG;
189			}
190		✗	break;
191		✗	default:
192		✗	return AVERROR_BUG;
193			}
194
195		✗	if (s->dmode == SEPARATE) {
196		✗	s->combine_buffer = av_malloc_array(outlink->w * 3, sizeof(*s->combine_buffer));
197		✗	if (!s->combine_buffer)
198		✗	return AVERROR(ENOMEM);
199			}
200
201		✗	return 0;
202			}
203
204		✗	static int filter_frame(AVFilterLink *inlink, AVFrame *in)
205			{
206		✗	AVFilterContext *ctx = inlink->dst;
207		✗	AVFilterLink *outlink = ctx->outputs[0];
208		✗	AudioHistogramContext *s = ctx->priv;
209		✗	const int nb_samples = in->nb_samples;
210		✗	const int H = s->histogram_h;
211		✗	const int w = s->w;
212			int c, y, n, p, bin, ret;
213		✗	uint64_t acmax = 1;
214			AVFrame *clone;
215
216		✗	if (!s->out || s->out->width != outlink->w ||
217		✗	s->out->height != outlink->h) {
218		✗	av_frame_free(&s->out);
219		✗	s->out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
220		✗	if (!s->out) {
221		✗	av_frame_free(&in);
222		✗	return AVERROR(ENOMEM);
223			}
224		✗	for (n = H; n < s->h; n++) {
225		✗	memset(s->out->data[0] + n * s->out->linesize[0], 0, w);
226		✗	memset(s->out->data[1] + n * s->out->linesize[0], 127, w);
227		✗	memset(s->out->data[2] + n * s->out->linesize[0], 127, w);
228		✗	memset(s->out->data[3] + n * s->out->linesize[0], 0, w);
229			}
230			}
231
232		✗	ret = ff_inlink_make_frame_writable(outlink, &s->out);
233		✗	if (ret < 0) {
234		✗	av_frame_free(&in);
235		✗	return ret;
236			}
237
238		✗	if (s->dmode == SEPARATE) {
239		✗	for (y = 0; y < w; y++) {
240		✗	s->combine_buffer[3 * y ] = 0;
241		✗	s->combine_buffer[3 * y + 1] = 127.5;
242		✗	s->combine_buffer[3 * y + 2] = 127.5;
243			}
244			}
245
246		✗	for (n = 0; n < H; n++) {
247		✗	memset(s->out->data[0] + n * s->out->linesize[0], 0, w);
248		✗	memset(s->out->data[1] + n * s->out->linesize[0], 127, w);
249		✗	memset(s->out->data[2] + n * s->out->linesize[0], 127, w);
250		✗	memset(s->out->data[3] + n * s->out->linesize[0], 0, w);
251			}
252		✗	s->out->pts = av_rescale_q(in->pts, inlink->time_base, outlink->time_base);
253		✗	s->out->duration = 1;
254
255		✗	s->first = s->frame_count;
256
257		✗	switch (s->ascale) {
258		✗	case ALINEAR:
259		✗	for (c = 0; c < inlink->ch_layout.nb_channels; c++) {
260		✗	const float *src = (const float *)in->extended_data[c];
261		✗	uint64_t *achistogram = &s->achistogram[(s->dmode == SINGLE ? 0: c) * w];
262
263		✗	for (n = 0; n < nb_samples; n++) {
264		✗	bin = s->get_bin(src[n], w);
265
266		✗	achistogram[bin]++;
267			}
268
269		✗	if (s->in[s->first] && s->count >= 0) {
270		✗	uint64_t *shistogram = &s->shistogram[(s->dmode == SINGLE ? 0: c) * w];
271		✗	const float *src2 = (const float *)s->in[s->first]->extended_data[c];
272
273		✗	for (n = 0; n < nb_samples; n++) {
274		✗	bin = s->get_bin(src2[n], w);
275
276		✗	shistogram[bin]++;
277			}
278			}
279			}
280		✗	break;
281		✗	case ALOG:
282		✗	for (c = 0; c < inlink->ch_layout.nb_channels; c++) {
283		✗	const float *src = (const float *)in->extended_data[c];
284		✗	uint64_t *achistogram = &s->achistogram[(s->dmode == SINGLE ? 0: c) * w];
285
286		✗	for (n = 0; n < nb_samples; n++) {
287		✗	bin = s->get_bin(src[n], w);
288
289		✗	achistogram[bin]++;
290			}
291
292		✗	if (s->in[s->first] && s->count >= 0) {
293		✗	uint64_t *shistogram = &s->shistogram[(s->dmode == SINGLE ? 0: c) * w];
294		✗	const float *src2 = (const float *)s->in[s->first]->extended_data[c];
295
296		✗	for (n = 0; n < nb_samples; n++) {
297		✗	bin = s->get_bin(src2[n], w);
298
299		✗	shistogram[bin]++;
300			}
301			}
302			}
303		✗	break;
304			}
305
306		✗	av_frame_free(&s->in[s->frame_count]);
307		✗	s->in[s->frame_count] = in;
308		✗	s->frame_count++;
309		✗	if (s->frame_count > s->count)
310		✗	s->frame_count = 0;
311
312		✗	for (n = 0; n < w * s->dchannels; n++) {
313		✗	acmax = FFMAX(s->achistogram[n] - s->shistogram[n], acmax);
314			}
315
316		✗	for (c = 0; c < s->dchannels; c++) {
317		✗	uint64_t *shistogram = &s->shistogram[c * w];
318		✗	uint64_t *achistogram = &s->achistogram[c * w];
319			float yf, uf, vf;
320
321		✗	if (s->dmode == SEPARATE) {
322		✗	yf = 255.0f / s->dchannels;
323		✗	uf = yf * M_PI;
324		✗	vf = yf * M_PI;
325		✗	uf *= 0.5 * sin((2 * M_PI * c) / s->dchannels);
326		✗	vf *= 0.5 * cos((2 * M_PI * c) / s->dchannels);
327			}
328
329		✗	for (n = 0; n < w; n++) {
330			double a, aa;
331			int h;
332
333		✗	a = achistogram[n] - shistogram[n];
334
335		✗	switch (s->scale) {
336		✗	case LINEAR:
337		✗	aa = a / (double)acmax;
338		✗	break;
339		✗	case SQRT:
340		✗	aa = sqrt(a) / sqrt(acmax);
341		✗	break;
342		✗	case CBRT:
343		✗	aa = cbrt(a) / cbrt(acmax);
344		✗	break;
345		✗	case LOG:
346		✗	aa = log2(a + 1) / log2(acmax + 1);
347		✗	break;
348		✗	case RLOG:
349		✗	aa = 1. - log2(a + 1) / log2(acmax + 1);
350		✗	if (aa == 1.)
351		✗	aa = 0;
352		✗	break;
353		✗	default:
354		✗	av_assert0(0);
355			}
356
357		✗	h = aa * (H - 1);
358
359		✗	if (s->dmode == SINGLE) {
360		✗	int start = H - h, end = H;
361		✗	const int linesizey = s->out->linesize[0];
362		✗	const int linesizea = s->out->linesize[3];
363		✗	uint8_t *dsty = s->out->data[0] + start * linesizey;
364		✗	uint8_t *dsta = s->out->data[3] + start * linesizea;
365
366		✗	for (y = start; y < end; y++, dsty += linesizey, dsta += linesizea) {
367		✗	dsty[n] = 255;
368		✗	dsta[n] = 255;
369			}
370
371		✗	if (s->h - H > 0) {
372		✗	h = aa * 255;
373
374		✗	s->out->data[0][s->ypos * s->out->linesize[0] + n] = av_clip_uint8(h);
375		✗	s->out->data[1][s->ypos * s->out->linesize[1] + n] = 127;
376		✗	s->out->data[2][s->ypos * s->out->linesize[2] + n] = 127;
377		✗	s->out->data[3][s->ypos * s->out->linesize[3] + n] = 255;
378			}
379		✗	} else if (s->dmode == SEPARATE) {
380		✗	int start = H - h, end = H;
381		✗	float *out = &s->combine_buffer[3 * n];
382		✗	const int linesizey = s->out->linesize[0];
383		✗	const int linesizeu = s->out->linesize[1];
384		✗	const int linesizev = s->out->linesize[2];
385		✗	const int linesizea = s->out->linesize[3];
386		✗	uint8_t *dsty = s->out->data[0] + start * linesizey;
387		✗	uint8_t *dstu = s->out->data[1] + start * linesizeu;
388		✗	uint8_t *dstv = s->out->data[2] + start * linesizev;
389		✗	uint8_t *dsta = s->out->data[3] + start * linesizea;
390			int old;
391
392		✗	old = dsty[n];
393		✗	for (y = start; y < end; y++) {
394		✗	if (dsty[n] != old)
395		✗	break;
396		✗	old = dsty[n];
397		✗	dsty[n] = av_clip_uint8(yf);
398		✗	dstu[n] = av_clip_uint8(128.f+uf);
399		✗	dstv[n] = av_clip_uint8(128.f+vf);
400		✗	dsta[n] = 255;
401
402		✗	dsty += linesizey;
403		✗	dstu += linesizeu;
404		✗	dstv += linesizev;
405		✗	dsta += linesizea;
406			}
407
408		✗	out[0] += aa * yf;
409		✗	out[1] += aa * uf;
410		✗	out[2] += aa * vf;
411			}
412			}
413			}
414
415		✗	if (s->h - H > 0) {
416		✗	if (s->dmode == SEPARATE) {
417		✗	for (n = 0; n < w; n++) {
418		✗	float *cb = &s->combine_buffer[3 * n];
419
420		✗	s->out->data[0][s->ypos * s->out->linesize[0] + n] = cb[0];
421		✗	s->out->data[1][s->ypos * s->out->linesize[1] + n] = cb[1];
422		✗	s->out->data[2][s->ypos * s->out->linesize[2] + n] = cb[2];
423		✗	s->out->data[3][s->ypos * s->out->linesize[3] + n] = 255;
424			}
425			}
426
427		✗	if (s->slide == SCROLL) {
428		✗	for (p = 0; p < 4; p++) {
429		✗	for (y = s->h - 1; y >= H + 1; y--) {
430		✗	memmove(s->out->data[p] + (y ) * s->out->linesize[p],
431		✗	s->out->data[p] + (y-1) * s->out->linesize[p], w);
432			}
433			}
434			}
435
436		✗	s->ypos++;
437		✗	if (s->slide == SCROLL || s->ypos >= s->h)
438		✗	s->ypos = H;
439			}
440
441		✗	clone = av_frame_clone(s->out);
442		✗	if (!clone)
443		✗	return AVERROR(ENOMEM);
444
445		✗	return ff_filter_frame(outlink, clone);
446			}
447
448		✗	static int activate(AVFilterContext *ctx)
449			{
450		✗	AVFilterLink *inlink = ctx->inputs[0];
451		✗	AVFilterLink *outlink = ctx->outputs[0];
452		✗	AudioHistogramContext *s = ctx->priv;
453			AVFrame *in;
454			int ret;
455
456		✗	FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
457
458		✗	ret = ff_inlink_consume_samples(inlink, s->nb_samples, s->nb_samples, &in);
459		✗	if (ret < 0)
460		✗	return ret;
461		✗	if (ret > 0)
462		✗	return filter_frame(inlink, in);
463
464		✗	if (ff_inlink_queued_samples(inlink) >= s->nb_samples) {
465		✗	ff_filter_set_ready(ctx, 10);
466		✗	return 0;
467			}
468
469		✗	FF_FILTER_FORWARD_STATUS(inlink, outlink);
470		✗	FF_FILTER_FORWARD_WANTED(outlink, inlink);
471
472		✗	return FFERROR_NOT_READY;
473			}
474
475		✗	static av_cold void uninit(AVFilterContext *ctx)
476			{
477		✗	AudioHistogramContext *s = ctx->priv;
478			int i;
479
480		✗	av_frame_free(&s->out);
481		✗	av_freep(&s->shistogram);
482		✗	av_freep(&s->achistogram);
483		✗	av_freep(&s->combine_buffer);
484		✗	for (i = 0; i < 101; i++)
485		✗	av_frame_free(&s->in[i]);
486		✗	}
487
488			static const AVFilterPad ahistogram_inputs[] = {
489			{
490			.name = "default",
491			.type = AVMEDIA_TYPE_AUDIO,
492			.config_props = config_input,
493			},
494			};
495
496			static const AVFilterPad ahistogram_outputs[] = {
497			{
498			.name = "default",
499			.type = AVMEDIA_TYPE_VIDEO,
500			.config_props = config_output,
501			},
502			};
503
504			const AVFilter ff_avf_ahistogram = {
505			.name = "ahistogram",
506			.description = NULL_IF_CONFIG_SMALL("Convert input audio to histogram video output."),
507			.uninit = uninit,
508			.priv_size = sizeof(AudioHistogramContext),
509			.activate = activate,
510			FILTER_INPUTS(ahistogram_inputs),
511			FILTER_OUTPUTS(ahistogram_outputs),
512			FILTER_QUERY_FUNC(query_formats),
513			.priv_class = &ahistogram_class,
514			};
515