FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavfilter/af_adenorm.c	Lines:	0	141	0.0 %
Date:	2021-03-07 19:55:24	Branches:	0	65	0.0 %


/*
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"

enum FilterType {
    DC_TYPE,
    AC_TYPE,
    SQ_TYPE,
    PS_TYPE,
    NB_TYPES,
};

typedef struct ADenormContext {
    const AVClass *class;

    double level;
    double level_db;
    int type;
    int64_t in_samples;

    void (*filter)(AVFilterContext *ctx, void *dst,
                   const void *src, int nb_samples);
} ADenormContext;

static int query_formats(AVFilterContext *ctx)
{
    AVFilterFormats *formats = NULL;
    AVFilterChannelLayouts *layouts = NULL;
    static const enum AVSampleFormat sample_fmts[] = {
        AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP,
        AV_SAMPLE_FMT_NONE
    };
    int ret;

    formats = ff_make_format_list(sample_fmts);
    if (!formats)
        return AVERROR(ENOMEM);
    ret = ff_set_common_formats(ctx, formats);
    if (ret < 0)
        return ret;

    layouts = ff_all_channel_counts();
    if (!layouts)
        return AVERROR(ENOMEM);

    ret = ff_set_common_channel_layouts(ctx, layouts);
    if (ret < 0)
        return ret;

    formats = ff_all_samplerates();
    return ff_set_common_samplerates(ctx, formats);
}

static void dc_denorm_fltp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const float *src = (const float *)srcp;
    float *dst = (float *)dstp;
    const float dc = s->level;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc;
    }
}

static void dc_denorm_dblp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const double *src = (const double *)srcp;
    double *dst = (double *)dstp;
    const double dc = s->level;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc;
    }
}

static void ac_denorm_fltp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const float *src = (const float *)srcp;
    float *dst = (float *)dstp;
    const float dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * (((N + n) & 1) ? -1.f : 1.f);
    }
}

static void ac_denorm_dblp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const double *src = (const double *)srcp;
    double *dst = (double *)dstp;
    const double dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * (((N + n) & 1) ? -1. : 1.);
    }
}

static void sq_denorm_fltp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const float *src = (const float *)srcp;
    float *dst = (float *)dstp;
    const float dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * ((((N + n) >> 8) & 1) ? -1.f : 1.f);
    }
}

static void sq_denorm_dblp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const double *src = (const double *)srcp;
    double *dst = (double *)dstp;
    const double dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * ((((N + n) >> 8) & 1) ? -1. : 1.);
    }
}

static void ps_denorm_fltp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const float *src = (const float *)srcp;
    float *dst = (float *)dstp;
    const float dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * (((N + n) & 255) ? 0.f : 1.f);
    }
}

static void ps_denorm_dblp(AVFilterContext *ctx, void *dstp,
                           const void *srcp, int nb_samples)
{
    ADenormContext *s = ctx->priv;
    const double *src = (const double *)srcp;
    double *dst = (double *)dstp;
    const double dc = s->level;
    const int64_t N = s->in_samples;

    for (int n = 0; n < nb_samples; n++) {
        dst[n] = src[n] + dc * (((N + n) & 255) ? 0. : 1.);
    }
}

static int config_output(AVFilterLink *outlink)
{
    AVFilterContext *ctx = outlink->src;
    ADenormContext *s = ctx->priv;

    switch (s->type) {
    case DC_TYPE:
        switch (outlink->format) {
        case AV_SAMPLE_FMT_FLTP: s->filter = dc_denorm_fltp; break;
        case AV_SAMPLE_FMT_DBLP: s->filter = dc_denorm_dblp; break;
        }
        break;
    case AC_TYPE:
        switch (outlink->format) {
        case AV_SAMPLE_FMT_FLTP: s->filter = ac_denorm_fltp; break;
        case AV_SAMPLE_FMT_DBLP: s->filter = ac_denorm_dblp; break;
        }
        break;
    case SQ_TYPE:
        switch (outlink->format) {
        case AV_SAMPLE_FMT_FLTP: s->filter = sq_denorm_fltp; break;
        case AV_SAMPLE_FMT_DBLP: s->filter = sq_denorm_dblp; break;
        }
        break;
    case PS_TYPE:
        switch (outlink->format) {
        case AV_SAMPLE_FMT_FLTP: s->filter = ps_denorm_fltp; break;
        case AV_SAMPLE_FMT_DBLP: s->filter = ps_denorm_dblp; break;
        }
        break;
    default:
        av_assert0(0);
    }

    return 0;
}

typedef struct ThreadData {
    AVFrame *in, *out;
} ThreadData;

static int filter_channels(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
    ADenormContext *s = ctx->priv;
    ThreadData *td = arg;
    AVFrame *out = td->out;
    AVFrame *in = td->in;
    const int start = (in->channels * jobnr) / nb_jobs;
    const int end = (in->channels * (jobnr+1)) / nb_jobs;

    for (int ch = start; ch < end; ch++) {
        s->filter(ctx, out->extended_data[ch],
                  in->extended_data[ch],
                  in->nb_samples);
    }

    return 0;
}

static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
    AVFilterContext *ctx = inlink->dst;
    ADenormContext *s = ctx->priv;
    AVFilterLink *outlink = ctx->outputs[0];
    ThreadData td;
    AVFrame *out;

    if (av_frame_is_writable(in)) {
        out = in;
    } else {
        out = ff_get_audio_buffer(outlink, in->nb_samples);
        if (!out) {
            av_frame_free(&in);
            return AVERROR(ENOMEM);
        }
        av_frame_copy_props(out, in);
    }

    s->level = exp(s->level_db / 20. * M_LN10);
    td.in = in; td.out = out;
    ctx->internal->execute(ctx, filter_channels, &td, NULL, FFMIN(inlink->channels,
                                                            ff_filter_get_nb_threads(ctx)));

    s->in_samples += in->nb_samples;

    if (out != in)
        av_frame_free(&in);
    return ff_filter_frame(outlink, out);
}

static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
                           char *res, int res_len, int flags)
{
    AVFilterLink *outlink = ctx->outputs[0];
    int ret;

    ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
    if (ret < 0)
        return ret;

    return config_output(outlink);
}

static const AVFilterPad adenorm_inputs[] = {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .filter_frame = filter_frame,
    },
    { NULL }
};

static const AVFilterPad adenorm_outputs[] = {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .config_props = config_output,
    },
    { NULL }
};

#define OFFSET(x) offsetof(ADenormContext, x)
#define FLAGS AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

static const AVOption adenorm_options[] = {
    { "level", "set level", OFFSET(level_db), AV_OPT_TYPE_DOUBLE, {.dbl=-351},   -451,        -90, FLAGS },
    { "type",  "set type",  OFFSET(type),     AV_OPT_TYPE_INT,    {.i64=DC_TYPE},   0, NB_TYPES-1, FLAGS, "type" },
    { "dc",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=DC_TYPE}, 0, 0, FLAGS, "type"},
    { "ac",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=AC_TYPE}, 0, 0, FLAGS, "type"},
    { "square",NULL,  0, AV_OPT_TYPE_CONST, {.i64=SQ_TYPE}, 0, 0, FLAGS, "type"},
    { "pulse", NULL,  0, AV_OPT_TYPE_CONST, {.i64=PS_TYPE}, 0, 0, FLAGS, "type"},
    { NULL }
};

AVFILTER_DEFINE_CLASS(adenorm);

AVFilter ff_af_adenorm = {
    .name            = "adenorm",
    .description     = NULL_IF_CONFIG_SMALL("Remedy denormals by adding extremely low-level noise."),
    .query_formats   = query_formats,
    .priv_size       = sizeof(ADenormContext),
    .inputs          = adenorm_inputs,
    .outputs         = adenorm_outputs,
    .priv_class      = &adenorm_class,
    .process_command = process_command,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
                       AVFILTER_FLAG_SLICE_THREADS,
};


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* This file is part of FFmpeg.
3			*
4			* FFmpeg is free software; you can redistribute it and/or
5			* modify it under the terms of the GNU Lesser General Public
6			* License as published by the Free Software Foundation; either
7			* version 2.1 of the License, or (at your option) any later version.
8			*
9			* FFmpeg is distributed in the hope that it will be useful,
10			* but WITHOUT ANY WARRANTY; without even the implied warranty of
11			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12			* Lesser General Public License for more details.
13			*
14			* You should have received a copy of the GNU Lesser General Public
15			* License along with FFmpeg; if not, write to the Free Software
16			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17			*/
18
19			#include "libavutil/avassert.h"
20			#include "libavutil/channel_layout.h"
21			#include "libavutil/opt.h"
22			#include "audio.h"
23			#include "avfilter.h"
24			#include "internal.h"
25
26			enum FilterType {
27			DC_TYPE,
28			AC_TYPE,
29			SQ_TYPE,
30			PS_TYPE,
31			NB_TYPES,
32			};
33
34			typedef struct ADenormContext {
35			const AVClass *class;
36
37			double level;
38			double level_db;
39			int type;
40			int64_t in_samples;
41
42			void (filter)(AVFilterContext ctx, void *dst,
43			const void *src, int nb_samples);
44			} ADenormContext;
45
46			static int query_formats(AVFilterContext *ctx)
47			{
48			AVFilterFormats *formats = NULL;
49			AVFilterChannelLayouts *layouts = NULL;
50			static const enum AVSampleFormat sample_fmts[] = {
51			AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP,
52			AV_SAMPLE_FMT_NONE
53			};
54			int ret;
55
56			formats = ff_make_format_list(sample_fmts);
57			if (!formats)
58			return AVERROR(ENOMEM);
59			ret = ff_set_common_formats(ctx, formats);
60			if (ret < 0)
61			return ret;
62
63			layouts = ff_all_channel_counts();
64			if (!layouts)
65			return AVERROR(ENOMEM);
66
67			ret = ff_set_common_channel_layouts(ctx, layouts);
68			if (ret < 0)
69			return ret;
70
71			formats = ff_all_samplerates();
72			return ff_set_common_samplerates(ctx, formats);
73			}
74
75			static void dc_denorm_fltp(AVFilterContext ctx, void dstp,
76			const void *srcp, int nb_samples)
77			{
78			ADenormContext *s = ctx->priv;
79			const float src = (const float )srcp;
80			float dst = (float )dstp;
81			const float dc = s->level;
82
83			for (int n = 0; n < nb_samples; n++) {
84			dst[n] = src[n] + dc;
85			}
86			}
87
88			static void dc_denorm_dblp(AVFilterContext ctx, void dstp,
89			const void *srcp, int nb_samples)
90			{
91			ADenormContext *s = ctx->priv;
92			const double src = (const double )srcp;
93			double dst = (double )dstp;
94			const double dc = s->level;
95
96			for (int n = 0; n < nb_samples; n++) {
97			dst[n] = src[n] + dc;
98			}
99			}
100
101			static void ac_denorm_fltp(AVFilterContext ctx, void dstp,
102			const void *srcp, int nb_samples)
103			{
104			ADenormContext *s = ctx->priv;
105			const float src = (const float )srcp;
106			float dst = (float )dstp;
107			const float dc = s->level;
108			const int64_t N = s->in_samples;
109
110			for (int n = 0; n < nb_samples; n++) {
111			dst[n] = src[n] + dc * (((N + n) & 1) ? -1.f : 1.f);
112			}
113			}
114
115			static void ac_denorm_dblp(AVFilterContext ctx, void dstp,
116			const void *srcp, int nb_samples)
117			{
118			ADenormContext *s = ctx->priv;
119			const double src = (const double )srcp;
120			double dst = (double )dstp;
121			const double dc = s->level;
122			const int64_t N = s->in_samples;
123
124			for (int n = 0; n < nb_samples; n++) {
125			dst[n] = src[n] + dc * (((N + n) & 1) ? -1. : 1.);
126			}
127			}
128
129			static void sq_denorm_fltp(AVFilterContext ctx, void dstp,
130			const void *srcp, int nb_samples)
131			{
132			ADenormContext *s = ctx->priv;
133			const float src = (const float )srcp;
134			float dst = (float )dstp;
135			const float dc = s->level;
136			const int64_t N = s->in_samples;
137
138			for (int n = 0; n < nb_samples; n++) {
139			dst[n] = src[n] + dc * ((((N + n) >> 8) & 1) ? -1.f : 1.f);
140			}
141			}
142
143			static void sq_denorm_dblp(AVFilterContext ctx, void dstp,
144			const void *srcp, int nb_samples)
145			{
146			ADenormContext *s = ctx->priv;
147			const double src = (const double )srcp;
148			double dst = (double )dstp;
149			const double dc = s->level;
150			const int64_t N = s->in_samples;
151
152			for (int n = 0; n < nb_samples; n++) {
153			dst[n] = src[n] + dc * ((((N + n) >> 8) & 1) ? -1. : 1.);
154			}
155			}
156
157			static void ps_denorm_fltp(AVFilterContext ctx, void dstp,
158			const void *srcp, int nb_samples)
159			{
160			ADenormContext *s = ctx->priv;
161			const float src = (const float )srcp;
162			float dst = (float )dstp;
163			const float dc = s->level;
164			const int64_t N = s->in_samples;
165
166			for (int n = 0; n < nb_samples; n++) {
167			dst[n] = src[n] + dc * (((N + n) & 255) ? 0.f : 1.f);
168			}
169			}
170
171			static void ps_denorm_dblp(AVFilterContext ctx, void dstp,
172			const void *srcp, int nb_samples)
173			{
174			ADenormContext *s = ctx->priv;
175			const double src = (const double )srcp;
176			double dst = (double )dstp;
177			const double dc = s->level;
178			const int64_t N = s->in_samples;
179
180			for (int n = 0; n < nb_samples; n++) {
181			dst[n] = src[n] + dc * (((N + n) & 255) ? 0. : 1.);
182			}
183			}
184
185			static int config_output(AVFilterLink *outlink)
186			{
187			AVFilterContext *ctx = outlink->src;
188			ADenormContext *s = ctx->priv;
189
190			switch (s->type) {
191			case DC_TYPE:
192			switch (outlink->format) {
193			case AV_SAMPLE_FMT_FLTP: s->filter = dc_denorm_fltp; break;
194			case AV_SAMPLE_FMT_DBLP: s->filter = dc_denorm_dblp; break;
195			}
196			break;
197			case AC_TYPE:
198			switch (outlink->format) {
199			case AV_SAMPLE_FMT_FLTP: s->filter = ac_denorm_fltp; break;
200			case AV_SAMPLE_FMT_DBLP: s->filter = ac_denorm_dblp; break;
201			}
202			break;
203			case SQ_TYPE:
204			switch (outlink->format) {
205			case AV_SAMPLE_FMT_FLTP: s->filter = sq_denorm_fltp; break;
206			case AV_SAMPLE_FMT_DBLP: s->filter = sq_denorm_dblp; break;
207			}
208			break;
209			case PS_TYPE:
210			switch (outlink->format) {
211			case AV_SAMPLE_FMT_FLTP: s->filter = ps_denorm_fltp; break;
212			case AV_SAMPLE_FMT_DBLP: s->filter = ps_denorm_dblp; break;
213			}
214			break;
215			default:
216			av_assert0(0);
217			}
218
219			return 0;
220			}
221
222			typedef struct ThreadData {
223			AVFrame in, out;
224			} ThreadData;
225
226			static int filter_channels(AVFilterContext ctx, void arg, int jobnr, int nb_jobs)
227			{
228			ADenormContext *s = ctx->priv;
229			ThreadData *td = arg;
230			AVFrame *out = td->out;
231			AVFrame *in = td->in;
232			const int start = (in->channels * jobnr) / nb_jobs;
233			const int end = (in->channels * (jobnr+1)) / nb_jobs;
234
235			for (int ch = start; ch < end; ch++) {
236			s->filter(ctx, out->extended_data[ch],
237			in->extended_data[ch],
238			in->nb_samples);
239			}
240
241			return 0;
242			}
243
244			static int filter_frame(AVFilterLink inlink, AVFrame in)
245			{
246			AVFilterContext *ctx = inlink->dst;
247			ADenormContext *s = ctx->priv;
248			AVFilterLink *outlink = ctx->outputs[0];
249			ThreadData td;
250			AVFrame *out;
251
252			if (av_frame_is_writable(in)) {
253			out = in;
254			} else {
255			out = ff_get_audio_buffer(outlink, in->nb_samples);
256			if (!out) {
257			av_frame_free(&in);
258			return AVERROR(ENOMEM);
259			}
260			av_frame_copy_props(out, in);
261			}
262
263			s->level = exp(s->level_db / 20. * M_LN10);
264			td.in = in; td.out = out;
265			ctx->internal->execute(ctx, filter_channels, &td, NULL, FFMIN(inlink->channels,
266			ff_filter_get_nb_threads(ctx)));
267
268			s->in_samples += in->nb_samples;
269
270			if (out != in)
271			av_frame_free(&in);
272			return ff_filter_frame(outlink, out);
273			}
274
275			static int process_command(AVFilterContext ctx, const char cmd, const char *args,
276			char *res, int res_len, int flags)
277			{
278			AVFilterLink *outlink = ctx->outputs[0];
279			int ret;
280
281			ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
282			if (ret < 0)
283			return ret;
284
285			return config_output(outlink);
286			}
287
288			static const AVFilterPad adenorm_inputs[] = {
289			{
290			.name = "default",
291			.type = AVMEDIA_TYPE_AUDIO,
292			.filter_frame = filter_frame,
293			},
294			{ NULL }
295			};
296
297			static const AVFilterPad adenorm_outputs[] = {
298			{
299			.name = "default",
300			.type = AVMEDIA_TYPE_AUDIO,
301			.config_props = config_output,
302			},
303			{ NULL }
304			};
305
306			#define OFFSET(x) offsetof(ADenormContext, x)
307			#define FLAGS AV_OPT_FLAG_AUDIO_PARAM\|AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_RUNTIME_PARAM
308
309			static const AVOption adenorm_options[] = {
310			{ "level", "set level", OFFSET(level_db), AV_OPT_TYPE_DOUBLE, {.dbl=-351}, -451, -90, FLAGS },
311			{ "type", "set type", OFFSET(type), AV_OPT_TYPE_INT, {.i64=DC_TYPE}, 0, NB_TYPES-1, FLAGS, "type" },
312			{ "dc", NULL, 0, AV_OPT_TYPE_CONST, {.i64=DC_TYPE}, 0, 0, FLAGS, "type"},
313			{ "ac", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AC_TYPE}, 0, 0, FLAGS, "type"},
314			{ "square",NULL, 0, AV_OPT_TYPE_CONST, {.i64=SQ_TYPE}, 0, 0, FLAGS, "type"},
315			{ "pulse", NULL, 0, AV_OPT_TYPE_CONST, {.i64=PS_TYPE}, 0, 0, FLAGS, "type"},
316			{ NULL }
317			};
318
319			AVFILTER_DEFINE_CLASS(adenorm);
320
321			AVFilter ff_af_adenorm = {
322			.name = "adenorm",
323			.description = NULL_IF_CONFIG_SMALL("Remedy denormals by adding extremely low-level noise."),
324			.query_formats = query_formats,
325			.priv_size = sizeof(ADenormContext),
326			.inputs = adenorm_inputs,
327			.outputs = adenorm_outputs,
328			.priv_class = &adenorm_class,
329			.process_command = process_command,
330			.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC \|
331			AVFILTER_FLAG_SLICE_THREADS,
332			};