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audio-resampler: combine functions
This commit is contained in:
Wim Taymans
parent
d5d1ac6f56
commit
819c4c26c7
2 changed files with 28 additions and 66 deletions
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@ -26,7 +26,7 @@
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#endif
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static inline void
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inner_product_gdouble (gdouble * o, const gdouble * a, const gdouble * b,
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inner_product_gdouble_1 (gdouble * o, const gdouble * a, const gdouble * b,
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gint len)
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{
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gint i = 0;
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@ -61,7 +61,7 @@ inner_product_gdouble (gdouble * o, const gdouble * a, const gdouble * b,
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}
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static inline void
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inner_product_gfloat (gfloat * o, const gfloat * a, const gfloat * b, gint len)
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inner_product_gfloat_1 (gfloat * o, const gfloat * a, const gfloat * b, gint len)
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{
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gint i = 0;
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gfloat res;
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@ -90,7 +90,7 @@ inner_product_gfloat (gfloat * o, const gfloat * a, const gfloat * b, gint len)
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}
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static inline void
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inner_product_gint32 (gint32 * o, const gint32 * a, const gint32 * b, gint len)
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inner_product_gint32_1 (gint32 * o, const gint32 * a, const gint32 * b, gint len)
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{
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gint i = 0;
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gint64 res = 0;
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@ -103,7 +103,7 @@ inner_product_gint32 (gint32 * o, const gint32 * a, const gint32 * b, gint len)
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}
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static inline void
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inner_product_gint16 (gint16 * o, const gint16 * a, const gint16 * b, gint len)
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inner_product_gint16_1 (gint16 * o, const gint16 * a, const gint16 * b, gint len)
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{
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gint i = 0;
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gint32 res = 0;
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@ -70,6 +70,7 @@ struct _GstAudioResampler
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MirrorFunc mirror;
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ResampleFunc resample;
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guint blocks;
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gboolean filling;
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gint samp_inc;
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gint samp_frac;
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@ -374,19 +375,19 @@ make_taps (GstAudioResampler * resampler, Tap * t, gint j)
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}
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}
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#define MAKE_RESAMPLE_FUNC(type) \
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#define MAKE_RESAMPLE_FUNC(type,channels) \
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static void \
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resample_ ##type (GstAudioResampler * resampler, gpointer in[], gsize in_len, \
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resample_ ##type## _ ##channels (GstAudioResampler * resampler, gpointer in[], gsize in_len, \
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gpointer out[], gsize out_len, gsize * consumed, gboolean move) \
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{ \
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gint c, di = 0; \
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gint n_taps = resampler->n_taps; \
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gint channels = resampler->channels; \
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gint blocks = resampler->blocks; \
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gint ostride = resampler->ostride; \
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gint samp_index = 0; \
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gint samp_phase = 0; \
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\
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for (c = 0; c < channels; c++) { \
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for (c = 0; c < blocks; c++) { \
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type *ip = in[c]; \
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type *op = ostride == 1 ? out[c] : (type *)out[0] + c; \
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\
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@ -395,19 +396,20 @@ resample_ ##type (GstAudioResampler * resampler, gpointer in[], gsize in_len,
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\
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for (di = 0; di < out_len; di++) { \
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Tap *t = &resampler->taps[samp_phase]; \
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type *ipp = &ip[samp_index]; \
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type *ipp = &ip[samp_index * channels]; \
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\
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if (t->taps == NULL) \
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make_taps (resampler, t, samp_phase); \
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\
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inner_product_ ##type (op, ipp, t->taps, n_taps); \
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inner_product_ ##type## _##channels (op, ipp, t->taps, n_taps); \
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op += ostride; \
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\
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samp_phase = t->next_phase; \
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samp_index += t->sample_inc; \
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} \
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if (move) \
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memmove (ip, &ip[samp_index], (in_len - samp_index) * sizeof(type)); \
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memmove (ip, &ip[samp_index * channels], \
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(in_len - samp_index) * sizeof(type) * channels); \
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} \
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*consumed = samp_index - resampler->samp_index; \
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\
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@ -415,55 +417,12 @@ resample_ ##type (GstAudioResampler * resampler, gpointer in[], gsize in_len,
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resampler->samp_phase = samp_phase; \
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}
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MAKE_RESAMPLE_FUNC (gdouble);
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MAKE_RESAMPLE_FUNC (gfloat);
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MAKE_RESAMPLE_FUNC (gint32);
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MAKE_RESAMPLE_FUNC (gint16);
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#define MAKE_RESAMPLE_INTERLEAVED_FUNC(type,channels) \
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static void \
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resample_interleaved_ ##type##_##channels (GstAudioResampler * resampler, gpointer in[],\
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gsize in_len, gpointer out[], gsize out_len, gsize * consumed, gboolean move) \
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{ \
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gint di = 0; \
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gint n_taps = resampler->n_taps; \
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gint ostride = resampler->ostride; \
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gint samp_index = 0; \
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gint samp_phase = 0; \
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\
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{ \
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type *ip = in[0]; \
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type *op = out[0]; \
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\
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samp_index = resampler->samp_index; \
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samp_phase = resampler->samp_phase; \
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\
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for (di = 0; di < out_len; di++) { \
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Tap *t = &resampler->taps[samp_phase]; \
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type *ipp = &ip[samp_index * channels]; \
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\
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if (t->taps == NULL) \
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make_taps (resampler, t, samp_phase); \
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\
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inner_product_ ##type## _##channels (op, ipp, t->taps, n_taps); \
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\
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op += ostride; \
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samp_phase = t->next_phase; \
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samp_index += t->sample_inc; \
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} \
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if (move) \
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memmove (ip, &ip[samp_index * channels], \
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(in_len - samp_index) * sizeof(type) * channels); \
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} \
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*consumed = samp_index - resampler->samp_index; \
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\
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resampler->samp_index = move ? 0 : samp_index; \
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resampler->samp_phase = samp_phase; \
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}
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MAKE_RESAMPLE_INTERLEAVED_FUNC (gdouble, 2);
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MAKE_RESAMPLE_INTERLEAVED_FUNC (gint16, 2);
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MAKE_RESAMPLE_FUNC (gdouble, 1);
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MAKE_RESAMPLE_FUNC (gfloat, 1);
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MAKE_RESAMPLE_FUNC (gint32, 1);
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MAKE_RESAMPLE_FUNC (gint16, 1);
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MAKE_RESAMPLE_FUNC (gdouble, 2);
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MAKE_RESAMPLE_FUNC (gint16, 2);
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#define MAKE_DEINTERLEAVE_FUNC(type) \
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static void \
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@ -644,33 +603,36 @@ resampler_calculate_taps (GstAudioResampler * resampler)
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t->next_phase = (j + in_rate) % out_rate;
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}
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resampler->blocks = resampler->channels;
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switch (resampler->format) {
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case GST_AUDIO_FORMAT_F64:
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if (resampler->channels == 2 && n_taps >= 4) {
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resampler->resample = resample_interleaved_gdouble_2;
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resampler->resample = resample_gdouble_2;
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resampler->deinterleave = deinterleave_copy;
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resampler->blocks = 1;
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} else {
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resampler->resample = resample_gdouble;
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resampler->resample = resample_gdouble_1;
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resampler->deinterleave = deinterleave_gdouble;
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}
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resampler->mirror = mirror_gdouble;
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break;
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case GST_AUDIO_FORMAT_F32:
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resampler->resample = resample_gfloat;
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resampler->resample = resample_gfloat_1;
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resampler->deinterleave = deinterleave_gfloat;
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resampler->mirror = mirror_gfloat;
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break;
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case GST_AUDIO_FORMAT_S32:
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resampler->resample = resample_gint32;
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resampler->resample = resample_gint32_1;
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resampler->deinterleave = deinterleave_gint32;
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resampler->mirror = mirror_gint32;
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break;
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case GST_AUDIO_FORMAT_S16:
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if (resampler->channels == 2 && n_taps >= 4) {
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resampler->resample = resample_interleaved_gint16_2;
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resampler->resample = resample_gint16_2;
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resampler->deinterleave = deinterleave_copy;
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resampler->blocks = 1;
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} else {
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resampler->resample = resample_gint16;
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resampler->resample = resample_gint16_1;
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resampler->deinterleave = deinterleave_gint16;
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}
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resampler->mirror = mirror_gint16;
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