2012-12-06 14:18:59 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2011 Stefano Sabatini
|
|
|
|
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
|
|
|
|
*
|
|
|
|
* 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
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @file
|
|
|
|
* audio volume filter
|
|
|
|
*/
|
|
|
|
|
2013-03-07 07:16:07 +00:00
|
|
|
#include "libavutil/channel_layout.h"
|
2012-12-06 14:18:59 +00:00
|
|
|
#include "libavutil/common.h"
|
|
|
|
#include "libavutil/eval.h"
|
2016-03-15 01:28:56 +00:00
|
|
|
#include "libavutil/ffmath.h"
|
2012-12-06 14:18:59 +00:00
|
|
|
#include "libavutil/float_dsp.h"
|
2014-02-19 20:01:37 +00:00
|
|
|
#include "libavutil/intreadwrite.h"
|
2012-12-06 14:18:59 +00:00
|
|
|
#include "libavutil/opt.h"
|
2014-02-19 20:01:37 +00:00
|
|
|
#include "libavutil/replaygain.h"
|
|
|
|
|
2012-12-06 14:18:59 +00:00
|
|
|
#include "audio.h"
|
|
|
|
#include "avfilter.h"
|
|
|
|
#include "formats.h"
|
|
|
|
#include "internal.h"
|
|
|
|
#include "af_volume.h"
|
|
|
|
|
2014-08-28 22:32:32 +00:00
|
|
|
static const char * const precision_str[] = {
|
2012-12-06 14:18:59 +00:00
|
|
|
"fixed", "float", "double"
|
|
|
|
};
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
static const char *const var_names[] = {
|
|
|
|
"n", ///< frame number (starting at zero)
|
|
|
|
"nb_channels", ///< number of channels
|
|
|
|
"nb_consumed_samples", ///< number of samples consumed by the filter
|
|
|
|
"nb_samples", ///< number of samples in the current frame
|
|
|
|
"pos", ///< position in the file of the frame
|
|
|
|
"pts", ///< frame presentation timestamp
|
|
|
|
"sample_rate", ///< sample rate
|
|
|
|
"startpts", ///< PTS at start of stream
|
|
|
|
"startt", ///< time at start of stream
|
|
|
|
"t", ///< time in the file of the frame
|
|
|
|
"tb", ///< timebase
|
|
|
|
"volume", ///< last set value
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
2012-12-06 14:18:59 +00:00
|
|
|
#define OFFSET(x) offsetof(VolumeContext, x)
|
|
|
|
#define A AV_OPT_FLAG_AUDIO_PARAM
|
2012-12-08 10:58:52 +00:00
|
|
|
#define F AV_OPT_FLAG_FILTERING_PARAM
|
2020-01-11 01:28:33 +00:00
|
|
|
#define T AV_OPT_FLAG_RUNTIME_PARAM
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2012-12-08 10:58:52 +00:00
|
|
|
static const AVOption volume_options[] = {
|
2013-02-22 23:17:17 +00:00
|
|
|
{ "volume", "set volume adjustment expression",
|
2020-01-11 01:28:33 +00:00
|
|
|
OFFSET(volume_expr), AV_OPT_TYPE_STRING, { .str = "1.0" }, .flags = A|F|T },
|
2012-12-08 10:54:43 +00:00
|
|
|
{ "precision", "select mathematical precision",
|
2012-12-08 10:58:52 +00:00
|
|
|
OFFSET(precision), AV_OPT_TYPE_INT, { .i64 = PRECISION_FLOAT }, PRECISION_FIXED, PRECISION_DOUBLE, A|F, "precision" },
|
|
|
|
{ "fixed", "select 8-bit fixed-point", 0, AV_OPT_TYPE_CONST, { .i64 = PRECISION_FIXED }, INT_MIN, INT_MAX, A|F, "precision" },
|
|
|
|
{ "float", "select 32-bit floating-point", 0, AV_OPT_TYPE_CONST, { .i64 = PRECISION_FLOAT }, INT_MIN, INT_MAX, A|F, "precision" },
|
|
|
|
{ "double", "select 64-bit floating-point", 0, AV_OPT_TYPE_CONST, { .i64 = PRECISION_DOUBLE }, INT_MIN, INT_MAX, A|F, "precision" },
|
2013-02-22 23:17:17 +00:00
|
|
|
{ "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_ONCE}, 0, EVAL_MODE_NB-1, .flags = A|F, "eval" },
|
|
|
|
{ "once", "eval volume expression once", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_ONCE}, .flags = A|F, .unit = "eval" },
|
|
|
|
{ "frame", "eval volume expression per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = A|F, .unit = "eval" },
|
2014-02-19 20:01:37 +00:00
|
|
|
{ "replaygain", "Apply replaygain side data when present",
|
2015-09-08 21:20:02 +00:00
|
|
|
OFFSET(replaygain), AV_OPT_TYPE_INT, { .i64 = REPLAYGAIN_DROP }, REPLAYGAIN_DROP, REPLAYGAIN_ALBUM, A|F, "replaygain" },
|
|
|
|
{ "drop", "replaygain side data is dropped", 0, AV_OPT_TYPE_CONST, { .i64 = REPLAYGAIN_DROP }, 0, 0, A|F, "replaygain" },
|
|
|
|
{ "ignore", "replaygain side data is ignored", 0, AV_OPT_TYPE_CONST, { .i64 = REPLAYGAIN_IGNORE }, 0, 0, A|F, "replaygain" },
|
|
|
|
{ "track", "track gain is preferred", 0, AV_OPT_TYPE_CONST, { .i64 = REPLAYGAIN_TRACK }, 0, 0, A|F, "replaygain" },
|
|
|
|
{ "album", "album gain is preferred", 0, AV_OPT_TYPE_CONST, { .i64 = REPLAYGAIN_ALBUM }, 0, 0, A|F, "replaygain" },
|
2014-04-04 16:42:09 +00:00
|
|
|
{ "replaygain_preamp", "Apply replaygain pre-amplification",
|
2015-09-08 21:20:02 +00:00
|
|
|
OFFSET(replaygain_preamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, -15.0, 15.0, A|F },
|
2014-04-06 14:25:08 +00:00
|
|
|
{ "replaygain_noclip", "Apply replaygain clipping prevention",
|
2015-09-08 21:20:02 +00:00
|
|
|
OFFSET(replaygain_noclip), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, A|F },
|
2015-09-08 21:21:15 +00:00
|
|
|
{ NULL }
|
2012-12-06 14:18:59 +00:00
|
|
|
};
|
|
|
|
|
2012-12-08 10:58:52 +00:00
|
|
|
AVFILTER_DEFINE_CLASS(volume);
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
static int set_expr(AVExpr **pexpr, const char *expr, void *log_ctx)
|
2012-12-06 14:18:59 +00:00
|
|
|
{
|
2013-02-22 23:17:17 +00:00
|
|
|
int ret;
|
|
|
|
AVExpr *old = NULL;
|
|
|
|
|
|
|
|
if (*pexpr)
|
|
|
|
old = *pexpr;
|
|
|
|
ret = av_expr_parse(pexpr, expr, var_names,
|
|
|
|
NULL, NULL, NULL, NULL, 0, log_ctx);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_log(log_ctx, AV_LOG_ERROR,
|
|
|
|
"Error when evaluating the volume expression '%s'\n", expr);
|
|
|
|
*pexpr = old;
|
|
|
|
return ret;
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
av_expr_free(old);
|
2013-03-16 19:54:57 +00:00
|
|
|
return 0;
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
static av_cold int init(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
VolumeContext *vol = ctx->priv;
|
2014-11-18 11:24:41 +00:00
|
|
|
|
|
|
|
vol->fdsp = avpriv_float_dsp_alloc(0);
|
|
|
|
if (!vol->fdsp)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
return set_expr(&vol->volume_pexpr, vol->volume_expr, ctx);
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
VolumeContext *vol = ctx->priv;
|
|
|
|
av_expr_free(vol->volume_pexpr);
|
|
|
|
av_opt_free(vol);
|
2014-11-18 11:24:41 +00:00
|
|
|
av_freep(&vol->fdsp);
|
2013-02-22 23:17:17 +00:00
|
|
|
}
|
|
|
|
|
2012-12-06 14:18:59 +00:00
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
VolumeContext *vol = ctx->priv;
|
|
|
|
static const enum AVSampleFormat sample_fmts[][7] = {
|
2013-03-29 11:34:15 +00:00
|
|
|
[PRECISION_FIXED] = {
|
2012-12-06 14:18:59 +00:00
|
|
|
AV_SAMPLE_FMT_U8,
|
|
|
|
AV_SAMPLE_FMT_U8P,
|
|
|
|
AV_SAMPLE_FMT_S16,
|
|
|
|
AV_SAMPLE_FMT_S16P,
|
|
|
|
AV_SAMPLE_FMT_S32,
|
|
|
|
AV_SAMPLE_FMT_S32P,
|
|
|
|
AV_SAMPLE_FMT_NONE
|
|
|
|
},
|
2013-03-29 11:34:15 +00:00
|
|
|
[PRECISION_FLOAT] = {
|
2012-12-06 14:18:59 +00:00
|
|
|
AV_SAMPLE_FMT_FLT,
|
|
|
|
AV_SAMPLE_FMT_FLTP,
|
|
|
|
AV_SAMPLE_FMT_NONE
|
|
|
|
},
|
2013-03-29 11:34:15 +00:00
|
|
|
[PRECISION_DOUBLE] = {
|
2012-12-06 14:18:59 +00:00
|
|
|
AV_SAMPLE_FMT_DBL,
|
|
|
|
AV_SAMPLE_FMT_DBLP,
|
|
|
|
AV_SAMPLE_FMT_NONE
|
|
|
|
}
|
|
|
|
};
|
2021-08-09 23:25:31 +00:00
|
|
|
int ret = ff_set_common_all_channel_counts(ctx);
|
2015-04-03 17:55:18 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2021-08-09 23:25:31 +00:00
|
|
|
ret = ff_set_common_formats_from_list(ctx, sample_fmts[vol->precision]);
|
2015-04-03 17:55:18 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2021-08-09 23:25:31 +00:00
|
|
|
return ff_set_common_all_samplerates(ctx);
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void scale_samples_u8(uint8_t *dst, const uint8_t *src,
|
|
|
|
int nb_samples, int volume)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
|
|
dst[i] = av_clip_uint8(((((int64_t)src[i] - 128) * volume + 128) >> 8) + 128);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void scale_samples_u8_small(uint8_t *dst, const uint8_t *src,
|
|
|
|
int nb_samples, int volume)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
|
|
dst[i] = av_clip_uint8((((src[i] - 128) * volume + 128) >> 8) + 128);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void scale_samples_s16(uint8_t *dst, const uint8_t *src,
|
|
|
|
int nb_samples, int volume)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int16_t *smp_dst = (int16_t *)dst;
|
|
|
|
const int16_t *smp_src = (const int16_t *)src;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
|
|
smp_dst[i] = av_clip_int16(((int64_t)smp_src[i] * volume + 128) >> 8);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void scale_samples_s16_small(uint8_t *dst, const uint8_t *src,
|
|
|
|
int nb_samples, int volume)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int16_t *smp_dst = (int16_t *)dst;
|
|
|
|
const int16_t *smp_src = (const int16_t *)src;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
|
|
smp_dst[i] = av_clip_int16((smp_src[i] * volume + 128) >> 8);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void scale_samples_s32(uint8_t *dst, const uint8_t *src,
|
|
|
|
int nb_samples, int volume)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int32_t *smp_dst = (int32_t *)dst;
|
|
|
|
const int32_t *smp_src = (const int32_t *)src;
|
|
|
|
for (i = 0; i < nb_samples; i++)
|
|
|
|
smp_dst[i] = av_clipl_int32((((int64_t)smp_src[i] * volume + 128) >> 8));
|
|
|
|
}
|
|
|
|
|
2013-04-30 16:30:02 +00:00
|
|
|
static av_cold void volume_init(VolumeContext *vol)
|
2012-12-06 14:18:59 +00:00
|
|
|
{
|
|
|
|
vol->samples_align = 1;
|
|
|
|
|
|
|
|
switch (av_get_packed_sample_fmt(vol->sample_fmt)) {
|
|
|
|
case AV_SAMPLE_FMT_U8:
|
|
|
|
if (vol->volume_i < 0x1000000)
|
|
|
|
vol->scale_samples = scale_samples_u8_small;
|
|
|
|
else
|
|
|
|
vol->scale_samples = scale_samples_u8;
|
|
|
|
break;
|
|
|
|
case AV_SAMPLE_FMT_S16:
|
|
|
|
if (vol->volume_i < 0x10000)
|
|
|
|
vol->scale_samples = scale_samples_s16_small;
|
|
|
|
else
|
|
|
|
vol->scale_samples = scale_samples_s16;
|
|
|
|
break;
|
|
|
|
case AV_SAMPLE_FMT_S32:
|
|
|
|
vol->scale_samples = scale_samples_s32;
|
|
|
|
break;
|
|
|
|
case AV_SAMPLE_FMT_FLT:
|
|
|
|
vol->samples_align = 4;
|
|
|
|
break;
|
|
|
|
case AV_SAMPLE_FMT_DBL:
|
|
|
|
vol->samples_align = 8;
|
|
|
|
break;
|
|
|
|
}
|
2012-09-23 18:49:26 +00:00
|
|
|
|
|
|
|
if (ARCH_X86)
|
|
|
|
ff_volume_init_x86(vol);
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
static int set_volume(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
VolumeContext *vol = ctx->priv;
|
|
|
|
|
|
|
|
vol->volume = av_expr_eval(vol->volume_pexpr, vol->var_values, NULL);
|
|
|
|
if (isnan(vol->volume)) {
|
|
|
|
if (vol->eval_mode == EVAL_MODE_ONCE) {
|
|
|
|
av_log(ctx, AV_LOG_ERROR, "Invalid value NaN for volume\n");
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
} else {
|
|
|
|
av_log(ctx, AV_LOG_WARNING, "Invalid value NaN for volume, setting to 0\n");
|
|
|
|
vol->volume = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
vol->var_values[VAR_VOLUME] = vol->volume;
|
|
|
|
|
2013-12-25 16:55:16 +00:00
|
|
|
av_log(ctx, AV_LOG_VERBOSE, "n:%f t:%f pts:%f precision:%s ",
|
|
|
|
vol->var_values[VAR_N], vol->var_values[VAR_T], vol->var_values[VAR_PTS],
|
|
|
|
precision_str[vol->precision]);
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
if (vol->precision == PRECISION_FIXED) {
|
|
|
|
vol->volume_i = (int)(vol->volume * 256 + 0.5);
|
|
|
|
vol->volume = vol->volume_i / 256.0;
|
2013-12-25 16:55:16 +00:00
|
|
|
av_log(ctx, AV_LOG_VERBOSE, "volume_i:%d/255 ", vol->volume_i);
|
2013-02-22 23:17:17 +00:00
|
|
|
}
|
2013-12-25 16:55:16 +00:00
|
|
|
av_log(ctx, AV_LOG_VERBOSE, "volume:%f volume_dB:%f\n",
|
2015-10-29 04:11:44 +00:00
|
|
|
vol->volume, 20.0*log10(vol->volume));
|
2013-02-22 23:17:17 +00:00
|
|
|
|
|
|
|
volume_init(vol);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-12-06 14:18:59 +00:00
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
|
|
{
|
|
|
|
AVFilterContext *ctx = outlink->src;
|
|
|
|
VolumeContext *vol = ctx->priv;
|
|
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
|
|
|
|
|
|
vol->sample_fmt = inlink->format;
|
2013-12-02 18:44:09 +00:00
|
|
|
vol->channels = inlink->channels;
|
2012-12-06 14:18:59 +00:00
|
|
|
vol->planes = av_sample_fmt_is_planar(inlink->format) ? vol->channels : 1;
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
vol->var_values[VAR_N] =
|
|
|
|
vol->var_values[VAR_NB_CONSUMED_SAMPLES] =
|
|
|
|
vol->var_values[VAR_NB_SAMPLES] =
|
|
|
|
vol->var_values[VAR_POS] =
|
|
|
|
vol->var_values[VAR_PTS] =
|
|
|
|
vol->var_values[VAR_STARTPTS] =
|
|
|
|
vol->var_values[VAR_STARTT] =
|
|
|
|
vol->var_values[VAR_T] =
|
|
|
|
vol->var_values[VAR_VOLUME] = NAN;
|
|
|
|
|
|
|
|
vol->var_values[VAR_NB_CHANNELS] = inlink->channels;
|
|
|
|
vol->var_values[VAR_TB] = av_q2d(inlink->time_base);
|
|
|
|
vol->var_values[VAR_SAMPLE_RATE] = inlink->sample_rate;
|
|
|
|
|
|
|
|
av_log(inlink->src, AV_LOG_VERBOSE, "tb:%f sample_rate:%f nb_channels:%f\n",
|
|
|
|
vol->var_values[VAR_TB],
|
|
|
|
vol->var_values[VAR_SAMPLE_RATE],
|
|
|
|
vol->var_values[VAR_NB_CHANNELS]);
|
|
|
|
|
|
|
|
return set_volume(ctx);
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
2013-12-23 17:24:57 +00:00
|
|
|
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
|
|
|
|
char *res, int res_len, int flags)
|
|
|
|
{
|
|
|
|
VolumeContext *vol = ctx->priv;
|
|
|
|
int ret = AVERROR(ENOSYS);
|
|
|
|
|
|
|
|
if (!strcmp(cmd, "volume")) {
|
|
|
|
if ((ret = set_expr(&vol->volume_pexpr, args, ctx)) < 0)
|
|
|
|
return ret;
|
|
|
|
if (vol->eval_mode == EVAL_MODE_ONCE)
|
|
|
|
set_volume(ctx);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2012-11-28 07:41:07 +00:00
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
|
2012-12-06 14:18:59 +00:00
|
|
|
{
|
2013-02-22 23:17:17 +00:00
|
|
|
AVFilterContext *ctx = inlink->dst;
|
2012-12-06 14:18:59 +00:00
|
|
|
VolumeContext *vol = inlink->dst->priv;
|
|
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
2012-11-28 07:41:07 +00:00
|
|
|
int nb_samples = buf->nb_samples;
|
|
|
|
AVFrame *out_buf;
|
2013-02-22 23:17:17 +00:00
|
|
|
int64_t pos;
|
2014-02-19 20:01:37 +00:00
|
|
|
AVFrameSideData *sd = av_frame_get_side_data(buf, AV_FRAME_DATA_REPLAYGAIN);
|
2014-02-19 19:55:27 +00:00
|
|
|
int ret;
|
2013-02-22 23:17:17 +00:00
|
|
|
|
2014-02-19 20:01:37 +00:00
|
|
|
if (sd && vol->replaygain != REPLAYGAIN_IGNORE) {
|
|
|
|
if (vol->replaygain != REPLAYGAIN_DROP) {
|
|
|
|
AVReplayGain *replaygain = (AVReplayGain*)sd->data;
|
2014-04-06 14:25:08 +00:00
|
|
|
int32_t gain = 100000;
|
|
|
|
uint32_t peak = 100000;
|
|
|
|
float g, p;
|
2014-02-19 20:01:37 +00:00
|
|
|
|
|
|
|
if (vol->replaygain == REPLAYGAIN_TRACK &&
|
2014-04-06 14:25:08 +00:00
|
|
|
replaygain->track_gain != INT32_MIN) {
|
2014-02-19 20:01:37 +00:00
|
|
|
gain = replaygain->track_gain;
|
2014-04-06 14:25:08 +00:00
|
|
|
|
|
|
|
if (replaygain->track_peak != 0)
|
|
|
|
peak = replaygain->track_peak;
|
|
|
|
} else if (replaygain->album_gain != INT32_MIN) {
|
2014-02-19 20:01:37 +00:00
|
|
|
gain = replaygain->album_gain;
|
2014-04-06 14:25:08 +00:00
|
|
|
|
|
|
|
if (replaygain->album_peak != 0)
|
|
|
|
peak = replaygain->album_peak;
|
|
|
|
} else {
|
2014-02-19 20:01:37 +00:00
|
|
|
av_log(inlink->dst, AV_LOG_WARNING, "Both ReplayGain gain "
|
|
|
|
"values are unknown.\n");
|
|
|
|
}
|
|
|
|
g = gain / 100000.0f;
|
2014-04-06 14:25:08 +00:00
|
|
|
p = peak / 100000.0f;
|
2014-02-19 20:01:37 +00:00
|
|
|
|
|
|
|
av_log(inlink->dst, AV_LOG_VERBOSE,
|
|
|
|
"Using gain %f dB from replaygain side data.\n", g);
|
|
|
|
|
2015-12-23 18:05:34 +00:00
|
|
|
vol->volume = ff_exp10((g + vol->replaygain_preamp) / 20);
|
2014-04-06 14:25:08 +00:00
|
|
|
if (vol->replaygain_noclip)
|
|
|
|
vol->volume = FFMIN(vol->volume, 1.0 / p);
|
2014-02-19 20:01:37 +00:00
|
|
|
vol->volume_i = (int)(vol->volume * 256 + 0.5);
|
|
|
|
|
|
|
|
volume_init(vol);
|
|
|
|
}
|
|
|
|
av_frame_remove_side_data(buf, AV_FRAME_DATA_REPLAYGAIN);
|
|
|
|
}
|
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
if (isnan(vol->var_values[VAR_STARTPTS])) {
|
|
|
|
vol->var_values[VAR_STARTPTS] = TS2D(buf->pts);
|
|
|
|
vol->var_values[VAR_STARTT ] = TS2T(buf->pts, inlink->time_base);
|
|
|
|
}
|
|
|
|
vol->var_values[VAR_PTS] = TS2D(buf->pts);
|
|
|
|
vol->var_values[VAR_T ] = TS2T(buf->pts, inlink->time_base);
|
2016-08-30 13:28:41 +00:00
|
|
|
vol->var_values[VAR_N ] = inlink->frame_count_out;
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2017-04-22 08:57:18 +00:00
|
|
|
pos = buf->pkt_pos;
|
2013-02-22 23:17:17 +00:00
|
|
|
vol->var_values[VAR_POS] = pos == -1 ? NAN : pos;
|
|
|
|
if (vol->eval_mode == EVAL_MODE_FRAME)
|
|
|
|
set_volume(ctx);
|
|
|
|
|
|
|
|
if (vol->volume == 1.0 || vol->volume_i == 256) {
|
|
|
|
out_buf = buf;
|
|
|
|
goto end;
|
|
|
|
}
|
2012-12-06 14:18:59 +00:00
|
|
|
|
|
|
|
/* do volume scaling in-place if input buffer is writable */
|
2015-02-28 22:15:39 +00:00
|
|
|
if (av_frame_is_writable(buf)
|
|
|
|
&& (vol->precision != PRECISION_FIXED || vol->volume_i > 0)) {
|
2012-12-06 14:18:59 +00:00
|
|
|
out_buf = buf;
|
|
|
|
} else {
|
2018-01-03 21:47:40 +00:00
|
|
|
out_buf = ff_get_audio_buffer(outlink, nb_samples);
|
2017-06-24 16:36:46 +00:00
|
|
|
if (!out_buf) {
|
|
|
|
av_frame_free(&buf);
|
2012-12-06 14:18:59 +00:00
|
|
|
return AVERROR(ENOMEM);
|
2017-06-24 16:36:46 +00:00
|
|
|
}
|
2014-02-19 19:55:27 +00:00
|
|
|
ret = av_frame_copy_props(out_buf, buf);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_frame_free(&out_buf);
|
|
|
|
av_frame_free(&buf);
|
|
|
|
return ret;
|
|
|
|
}
|
2012-12-06 14:18:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (vol->precision != PRECISION_FIXED || vol->volume_i > 0) {
|
|
|
|
int p, plane_samples;
|
|
|
|
|
|
|
|
if (av_sample_fmt_is_planar(buf->format))
|
|
|
|
plane_samples = FFALIGN(nb_samples, vol->samples_align);
|
|
|
|
else
|
|
|
|
plane_samples = FFALIGN(nb_samples * vol->channels, vol->samples_align);
|
|
|
|
|
|
|
|
if (vol->precision == PRECISION_FIXED) {
|
|
|
|
for (p = 0; p < vol->planes; p++) {
|
|
|
|
vol->scale_samples(out_buf->extended_data[p],
|
|
|
|
buf->extended_data[p], plane_samples,
|
|
|
|
vol->volume_i);
|
|
|
|
}
|
|
|
|
} else if (av_get_packed_sample_fmt(vol->sample_fmt) == AV_SAMPLE_FMT_FLT) {
|
|
|
|
for (p = 0; p < vol->planes; p++) {
|
2014-11-18 11:24:41 +00:00
|
|
|
vol->fdsp->vector_fmul_scalar((float *)out_buf->extended_data[p],
|
2012-12-06 14:18:59 +00:00
|
|
|
(const float *)buf->extended_data[p],
|
|
|
|
vol->volume, plane_samples);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
for (p = 0; p < vol->planes; p++) {
|
2014-11-18 11:24:41 +00:00
|
|
|
vol->fdsp->vector_dmul_scalar((double *)out_buf->extended_data[p],
|
2012-12-06 14:18:59 +00:00
|
|
|
(const double *)buf->extended_data[p],
|
|
|
|
vol->volume, plane_samples);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-03-05 09:41:33 +00:00
|
|
|
emms_c();
|
|
|
|
|
2012-12-06 14:18:59 +00:00
|
|
|
if (buf != out_buf)
|
2012-11-28 07:41:07 +00:00
|
|
|
av_frame_free(&buf);
|
2012-12-06 14:18:59 +00:00
|
|
|
|
2013-02-22 23:17:17 +00:00
|
|
|
end:
|
2013-12-25 18:13:23 +00:00
|
|
|
vol->var_values[VAR_NB_CONSUMED_SAMPLES] += out_buf->nb_samples;
|
2012-12-06 14:18:59 +00:00
|
|
|
return ff_filter_frame(outlink, out_buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const AVFilterPad avfilter_af_volume_inputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_AUDIO,
|
|
|
|
.filter_frame = filter_frame,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVFilterPad avfilter_af_volume_outputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_AUDIO,
|
|
|
|
.config_props = config_output,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2021-04-19 16:33:56 +00:00
|
|
|
const AVFilter ff_af_volume = {
|
2012-12-08 11:07:03 +00:00
|
|
|
.name = "volume",
|
2012-12-06 14:18:59 +00:00
|
|
|
.description = NULL_IF_CONFIG_SMALL("Change input volume."),
|
|
|
|
.query_formats = query_formats,
|
|
|
|
.priv_size = sizeof(VolumeContext),
|
2013-02-25 20:21:29 +00:00
|
|
|
.priv_class = &volume_class,
|
2012-12-06 14:18:59 +00:00
|
|
|
.init = init,
|
2013-02-22 23:17:17 +00:00
|
|
|
.uninit = uninit,
|
2021-08-12 11:05:31 +00:00
|
|
|
FILTER_INPUTS(avfilter_af_volume_inputs),
|
|
|
|
FILTER_OUTPUTS(avfilter_af_volume_outputs),
|
2013-05-08 23:04:41 +00:00
|
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
|
2013-12-23 17:24:57 +00:00
|
|
|
.process_command = process_command,
|
2012-12-06 14:18:59 +00:00
|
|
|
};
|