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libs: audio-resampler: add support for consuming non-interleaved input buffers

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=705986
This commit is contained in:
George Kiagiadakis 2018-02-01 13:23:53 +02:00
parent 108a911610
commit eefdf32d96
1 changed files with 23 additions and 4 deletions
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27
gst-libs/gst/audio/audio-resampler.c
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@ -911,6 +911,22 @@ static DeinterleaveFunc deinterleave_funcs[] = {
deinterleave_gdouble
};
static void
copy_func (GstAudioResampler * resampler, gpointer sbuf[],
gpointer in[], gsize in_frames)
{
gint c, channels = resampler->channels;
gsize samples_avail = resampler->samples_avail;
for (c = 0; c < channels; c++) {
guint8 *s = ((guint8 *) sbuf[c]) + (samples_avail * resampler->bps);
if (G_UNLIKELY (in == NULL)) {
memset (s, 0, in_frames * resampler->bps);
} else {
memcpy (s, in[c], in_frames * resampler->bps);
}
}
}
static void
calculate_kaiser_params (GstAudioResampler * resampler)
{
@ -1335,7 +1351,7 @@ gst_audio_resampler_new (GstAudioResamplerMethod method,
GstAudioFormat format, gint channels,
gint in_rate, gint out_rate, GstStructure * options)
{
gboolean non_interleaved;
gboolean non_interleaved_in, non_interleaved_out;
GstAudioResampler *resampler;
const GstAudioFormatInfo *info;
GstStructure *def_options = NULL;
@ -1379,14 +1395,17 @@ gst_audio_resampler_new (GstAudioResamplerMethod method,
resampler->bps = GST_AUDIO_FORMAT_INFO_WIDTH (info) / 8;
resampler->sbuf = g_malloc0 (sizeof (gpointer) * channels);
non_interleaved =
non_interleaved_in =
(resampler->flags & GST_AUDIO_RESAMPLER_FLAG_NON_INTERLEAVED_IN);
non_interleaved_out =
(resampler->flags & GST_AUDIO_RESAMPLER_FLAG_NON_INTERLEAVED_OUT);
/* we resample each channel separately */
resampler->blocks = resampler->channels;
resampler->inc = 1;
resampler->ostride = non_interleaved ? 1 : resampler->channels;
resampler->deinterleave = deinterleave_funcs[resampler->format_index];
resampler->ostride = non_interleaved_out ? 1 : resampler->channels;
resampler->deinterleave = non_interleaved_in ?
copy_func : deinterleave_funcs[resampler->format_index];
resampler->convert_taps = convert_taps_funcs[resampler->format_index];
GST_DEBUG ("method %d, bps %d, channels %d", method, resampler->bps,