PulseAudio 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 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
USA.
***/
+#include <inttypes.h>
+#include <limits.h>
+
+#include <pulse/gccmacro.h>
#include <pulse/sample.h>
#include <pulse/volume.h>
+#include <pulse/channelmap.h>
+
#include <pulsecore/memblock.h>
#include <pulsecore/memchunk.h>
pa_memchunk* pa_silence_memchunk_get(pa_silence_cache *cache, pa_mempool *pool, pa_memchunk* ret, const pa_sample_spec *spec, size_t length);
-typedef struct pa_mix_info {
- pa_memchunk chunk;
- pa_cvolume volume;
- void *userdata;
-
- /* The following fields are used internally by pa_mix(), should
- * not be initialised by the caller of pa_mix(). */
- void *ptr;
- union {
- int32_t i;
- float f;
- } linear[PA_CHANNELS_MAX];
-} pa_mix_info;
-
-size_t pa_mix(
- pa_mix_info channels[],
- unsigned nchannels,
- void *data,
- size_t length,
- const pa_sample_spec *spec,
- const pa_cvolume *volume,
- pa_bool_t mute);
-
-void pa_volume_memchunk(
- pa_memchunk*c,
- const pa_sample_spec *spec,
- const pa_cvolume *volume);
-
size_t pa_frame_align(size_t l, const pa_sample_spec *ss) PA_GCC_PURE;
-pa_bool_t pa_frame_aligned(size_t l, const pa_sample_spec *ss) PA_GCC_PURE;
+bool pa_frame_aligned(size_t l, const pa_sample_spec *ss) PA_GCC_PURE;
void pa_interleave(const void *src[], unsigned channels, void *dst, size_t ss, unsigned n);
void pa_deinterleave(const void *src, void *dst[], unsigned channels, size_t ss, unsigned n);
void pa_sample_clamp(pa_sample_format_t format, void *dst, size_t dstr, const void *src, size_t sstr, unsigned n);
+static inline int32_t pa_mult_s16_volume(int16_t v, int32_t cv) {
+#if __WORDSIZE == 64 || ((ULONG_MAX) > (UINT_MAX))
+ /* Multiply with 64 bit integers on 64 bit platforms */
+ return (v * (int64_t) cv) >> 16;
+#else
+ /* Multiplying the 32 bit volume factor with the
+ * 16 bit sample might result in an 48 bit value. We
+ * want to do without 64 bit integers and hence do
+ * the multiplication independently for the HI and
+ * LO part of the volume. */
+
+ int32_t hi = cv >> 16;
+ int32_t lo = cv & 0xFFFF;
+ return ((v * lo) >> 16) + (v * hi);
+#endif
+}
+
pa_usec_t pa_bytes_to_usec_round_up(uint64_t length, const pa_sample_spec *spec);
size_t pa_usec_to_bytes_round_up(pa_usec_t t, const pa_sample_spec *spec);
void pa_memchunk_sine(pa_memchunk *c, pa_mempool *pool, unsigned rate, unsigned freq);
+typedef void (*pa_do_volume_func_t) (void *samples, const void *volumes, unsigned channels, unsigned length);
+
+pa_do_volume_func_t pa_get_volume_func(pa_sample_format_t f);
+void pa_set_volume_func(pa_sample_format_t f, pa_do_volume_func_t func);
+
+size_t pa_convert_size(size_t size, const pa_sample_spec *from, const pa_sample_spec *to);
+
+#define PA_CHANNEL_POSITION_MASK_LEFT \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_SIDE_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_LEFT)) \
+
+#define PA_CHANNEL_POSITION_MASK_RIGHT \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_SIDE_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_RIGHT))
+
+#define PA_CHANNEL_POSITION_MASK_CENTER \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_CENTER))
+
+#define PA_CHANNEL_POSITION_MASK_FRONT \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_CENTER))
+
+#define PA_CHANNEL_POSITION_MASK_REAR \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_REAR_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_CENTER))
+
+#define PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_SIDE_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_SIDE_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_CENTER))
+
+#define PA_CHANNEL_POSITION_MASK_TOP \
+ (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_FRONT_CENTER) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_LEFT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_RIGHT) \
+ | PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_TOP_REAR_CENTER))
+
+#define PA_CHANNEL_POSITION_MASK_ALL \
+ ((pa_channel_position_mask_t) (PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_MAX)-1))
+
#endif