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avfilter/af_astats: factorize sample loops 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2019-03-01 23:09:54 +01:00
parent 233fdd84c2
commit 235228ea50
1 changed files with 37 additions and 71 deletions
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108
libavfilter/af_astats.c
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@ -406,12 +406,33 @@ static void set_metadata(AudioStatsContext *s, AVDictionary **metadata)
set_meta(metadata, 0, "Overall.Number_of_samples", "%f", nb_samples / s->nb_channels);
}
#define UPDATE_STATS_P(type, double_sample, normalized_sample, int_sample) \
for (int c = 0; c < channels; c++) { \
ChannelStats *p = &s->chstats[c]; \
const type *src = (const type *)data[c]; \
for (int i = 0; i < samples; i++, src++) \
update_stat(s, p, double_sample, normalized_sample, int_sample); \
}
#define UPDATE_STATS_I(type, double_sample, normalized_sample, int_sample) \
{ \
const type *src = (const type *)data[0]; \
for (int i = 0; i < samples; i++) { \
for (int c = 0; c < channels; c++, src++) \
update_stat(s, &s->chstats[c], double_sample, normalized_sample, int_sample); \
} \
}
#define UPDATE_STATS(planar, type, sample, normalizer_suffix, int_sample) \
UPDATE_STATS_##planar(type, sample, sample normalizer_suffix, int_sample);
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
{
AudioStatsContext *s = inlink->dst->priv;
AVDictionary **metadata = &buf->metadata;
const int channels = s->nb_channels;
int i, c;
const int samples = buf->nb_samples;
const uint8_t * const * const data = (const uint8_t * const *)buf->extended_data;
if (s->reset_count > 0) {
if (s->nb_frames >= s->reset_count) {
@ -423,89 +444,34 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
switch (inlink->format) {
case AV_SAMPLE_FMT_DBLP:
for (c = 0; c < channels; c++) {
ChannelStats *p = &s->chstats[c];
const double *src = (const double *)buf->extended_data[c];
for (i = 0; i < buf->nb_samples; i++, src++)
update_stat(s, p, *src, *src, llrint(*src * (UINT64_C(1) << 63)));
}
UPDATE_STATS(P, double, *src, , llrint(*src * (UINT64_C(1) << 63)));
break;
case AV_SAMPLE_FMT_DBL: {
const double *src = (const double *)buf->extended_data[0];
for (i = 0; i < buf->nb_samples; i++) {
for (c = 0; c < channels; c++, src++)
update_stat(s, &s->chstats[c], *src, *src, llrint(*src * (UINT64_C(1) << 63)));
}}
case AV_SAMPLE_FMT_DBL:
UPDATE_STATS(I, double, *src, , llrint(*src * (UINT64_C(1) << 63)));
break;
case AV_SAMPLE_FMT_FLTP:
for (c = 0; c < channels; c++) {
ChannelStats *p = &s->chstats[c];
const float *src = (const float *)buf->extended_data[c];
for (i = 0; i < buf->nb_samples; i++, src++)
update_stat(s, p, *src, *src, llrint(*src * (UINT64_C(1) << 31)));
}
UPDATE_STATS(P, float, *src, , llrint(*src * (UINT64_C(1) << 31)));
break;
case AV_SAMPLE_FMT_FLT: {
const float *src = (const float *)buf->extended_data[0];
for (i = 0; i < buf->nb_samples; i++) {
for (c = 0; c < channels; c++, src++)
update_stat(s, &s->chstats[c], *src, *src, llrint(*src * (UINT64_C(1) << 31)));
}}
case AV_SAMPLE_FMT_FLT:
UPDATE_STATS(I, float, *src, , llrint(*src * (UINT64_C(1) << 31)));
break;
case AV_SAMPLE_FMT_S64P:
for (c = 0; c < channels; c++) {
ChannelStats *p = &s->chstats[c];
const int64_t *src = (const int64_t *)buf->extended_data[c];
for (i = 0; i < buf->nb_samples; i++, src++)
update_stat(s, p, *src, *src / (double)INT64_MAX, *src);
}
UPDATE_STATS(P, int64_t, *src, / (double)INT64_MAX, *src);
break;
case AV_SAMPLE_FMT_S64: {
const int64_t *src = (const int64_t *)buf->extended_data[0];
for (i = 0; i < buf->nb_samples; i++) {
for (c = 0; c < channels; c++, src++)
update_stat(s, &s->chstats[c], *src, *src / (double)INT64_MAX, *src);
}}
case AV_SAMPLE_FMT_S64:
UPDATE_STATS(I, int64_t, *src, / (double)INT64_MAX, *src);
break;
case AV_SAMPLE_FMT_S32P:
for (c = 0; c < channels; c++) {
ChannelStats *p = &s->chstats[c];
const int32_t *src = (const int32_t *)buf->extended_data[c];
for (i = 0; i < buf->nb_samples; i++, src++)
update_stat(s, p, *src, *src / (double)INT32_MAX, *src);
}
UPDATE_STATS(P, int32_t, *src, / (double)INT32_MAX, *src);
break;
case AV_SAMPLE_FMT_S32: {
const int32_t *src = (const int32_t *)buf->extended_data[0];
for (i = 0; i < buf->nb_samples; i++) {
for (c = 0; c < channels; c++, src++)
update_stat(s, &s->chstats[c], *src, *src / (double)INT32_MAX, *src);
}}
case AV_SAMPLE_FMT_S32:
UPDATE_STATS(I, int32_t, *src, / (double)INT32_MAX, *src);
break;
case AV_SAMPLE_FMT_S16P:
for (c = 0; c < channels; c++) {
ChannelStats *p = &s->chstats[c];
const int16_t *src = (const int16_t *)buf->extended_data[c];
for (i = 0; i < buf->nb_samples; i++, src++)
update_stat(s, p, *src, *src / (double)INT16_MAX, *src);
}
UPDATE_STATS(P, int16_t, *src, / (double)INT16_MAX, *src);
break;
case AV_SAMPLE_FMT_S16: {
const int16_t *src = (const int16_t *)buf->extended_data[0];
for (i = 0; i < buf->nb_samples; i++) {
for (c = 0; c < channels; c++, src++)
update_stat(s, &s->chstats[c], *src, *src / (double)INT16_MAX, *src);
}}
case AV_SAMPLE_FMT_S16:
UPDATE_STATS(I, int16_t, *src, / (double)INT16_MAX, *src);
break;
}