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/* PipeWire
*
* Copyright © 2020 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef PULSE_SERVER_FORMAT_H
#define PULSE_SERVER_FORMAT_H
#include <spa/utils/defs.h>
#include <pipewire/properties.h>
struct spa_pod;
struct spa_pod_builder;
#define RATE_MAX (48000u*8u)
#define CHANNELS_MAX (64u)
enum sample_format {
SAMPLE_U8,
SAMPLE_ALAW,
SAMPLE_ULAW,
SAMPLE_S16LE,
SAMPLE_S16BE,
SAMPLE_FLOAT32LE,
SAMPLE_FLOAT32BE,
SAMPLE_S32LE,
SAMPLE_S32BE,
SAMPLE_S24LE,
SAMPLE_S24BE,
SAMPLE_S24_32LE,
SAMPLE_S24_32BE,
SAMPLE_MAX,
SAMPLE_INVALID = -1
};
#if __BYTE_ORDER == __BIG_ENDIAN
#define SAMPLE_S16NE SAMPLE_S16BE
#define SAMPLE_FLOAT32NE SAMPLE_FLOAT32BE
#define SAMPLE_S32NE SAMPLE_S32BE
#define SAMPLE_S24NE SAMPLE_S24BE
#define SAMPLE_S24_32NE SAMPLE_S24_32BE
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define SAMPLE_S16NE SAMPLE_S16LE
#define SAMPLE_FLOAT32NE SAMPLE_FLOAT32LE
#define SAMPLE_S32NE SAMPLE_S32LE
#define SAMPLE_S24NE SAMPLE_S24LE
#define SAMPLE_S24_32NE SAMPLE_S24_32LE
#endif
struct format {
uint32_t pa;
uint32_t id;
const char *name;
uint32_t size;
};
struct sample_spec {
uint32_t format;
uint32_t rate;
uint8_t channels;
};
#define SAMPLE_SPEC_INIT \
(struct sample_spec) { \
.format = SPA_AUDIO_FORMAT_UNKNOWN, \
.rate = 0, \
.channels = 0, \
}
enum channel_position {
CHANNEL_POSITION_INVALID = -1,
CHANNEL_POSITION_MONO = 0,
CHANNEL_POSITION_FRONT_LEFT,
CHANNEL_POSITION_FRONT_RIGHT,
CHANNEL_POSITION_FRONT_CENTER,
CHANNEL_POSITION_REAR_CENTER,
CHANNEL_POSITION_REAR_LEFT,
CHANNEL_POSITION_REAR_RIGHT,
CHANNEL_POSITION_LFE,
CHANNEL_POSITION_FRONT_LEFT_OF_CENTER,
CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER,
CHANNEL_POSITION_SIDE_LEFT,
CHANNEL_POSITION_SIDE_RIGHT,
CHANNEL_POSITION_AUX0,
CHANNEL_POSITION_AUX1,
CHANNEL_POSITION_AUX2,
CHANNEL_POSITION_AUX3,
CHANNEL_POSITION_AUX4,
CHANNEL_POSITION_AUX5,
CHANNEL_POSITION_AUX6,
CHANNEL_POSITION_AUX7,
CHANNEL_POSITION_AUX8,
CHANNEL_POSITION_AUX9,
CHANNEL_POSITION_AUX10,
CHANNEL_POSITION_AUX11,
CHANNEL_POSITION_AUX12,
CHANNEL_POSITION_AUX13,
CHANNEL_POSITION_AUX14,
CHANNEL_POSITION_AUX15,
CHANNEL_POSITION_AUX16,
CHANNEL_POSITION_AUX17,
CHANNEL_POSITION_AUX18,
CHANNEL_POSITION_AUX19,
CHANNEL_POSITION_AUX20,
CHANNEL_POSITION_AUX21,
CHANNEL_POSITION_AUX22,
CHANNEL_POSITION_AUX23,
CHANNEL_POSITION_AUX24,
CHANNEL_POSITION_AUX25,
CHANNEL_POSITION_AUX26,
CHANNEL_POSITION_AUX27,
CHANNEL_POSITION_AUX28,
CHANNEL_POSITION_AUX29,
CHANNEL_POSITION_AUX30,
CHANNEL_POSITION_AUX31,
CHANNEL_POSITION_TOP_CENTER,
CHANNEL_POSITION_TOP_FRONT_LEFT,
CHANNEL_POSITION_TOP_FRONT_RIGHT,
CHANNEL_POSITION_TOP_FRONT_CENTER,
CHANNEL_POSITION_TOP_REAR_LEFT,
CHANNEL_POSITION_TOP_REAR_RIGHT,
CHANNEL_POSITION_TOP_REAR_CENTER,
CHANNEL_POSITION_MAX
};
struct channel {
uint32_t channel;
const char *name;
};
struct channel_map {
uint8_t channels;
uint32_t map[CHANNELS_MAX];
};
#define CHANNEL_MAP_INIT \
(struct channel_map) { \
.channels = 0, \
}
enum encoding {
ENCODING_ANY,
ENCODING_PCM,
ENCODING_AC3_IEC61937,
ENCODING_EAC3_IEC61937,
ENCODING_MPEG_IEC61937,
ENCODING_DTS_IEC61937,
ENCODING_MPEG2_AAC_IEC61937,
ENCODING_TRUEHD_IEC61937,
ENCODING_DTSHD_IEC61937,
ENCODING_MAX,
ENCODING_INVALID = -1,
};
struct format_info {
enum encoding encoding;
struct pw_properties *props;
};
uint32_t format_pa2id(enum sample_format format);
const char *format_id2name(uint32_t format);
uint32_t format_name2id(const char *name);
uint32_t format_paname2id(const char *name, size_t size);
enum sample_format format_id2pa(uint32_t id);
const char *format_id2paname(uint32_t id);
const char *format_encoding2name(enum encoding enc);
uint32_t format_encoding2id(enum encoding enc);
uint32_t sample_spec_frame_size(const struct sample_spec *ss);
bool sample_spec_valid(const struct sample_spec *ss);
uint32_t channel_pa2id(enum channel_position channel);
const char *channel_id2name(uint32_t channel);
uint32_t channel_name2id(const char *name);
enum channel_position channel_id2pa(uint32_t id, uint32_t *aux);
const char *channel_id2paname(uint32_t id, uint32_t *aux);
uint32_t channel_paname2id(const char *name, size_t size);
void channel_map_to_positions(const struct channel_map *map, uint32_t *pos);
void channel_map_parse(const char *str, struct channel_map *map);
bool channel_map_valid(const struct channel_map *map);
int format_parse_param(const struct spa_pod *param, bool collect, struct sample_spec *ss,
struct channel_map *map, const struct sample_spec *def_ss,
const struct channel_map *def_map);
const struct spa_pod *format_build_param(struct spa_pod_builder *b, uint32_t id,
const struct sample_spec *spec, const struct channel_map *map);
int format_info_from_spec(struct format_info *info, const struct sample_spec *ss,
const struct channel_map *map);
int format_info_from_param(struct format_info *info, struct spa_pod *param, uint32_t index);
const struct spa_pod *format_info_build_param(struct spa_pod_builder *b, uint32_t id,
const struct format_info *info, uint32_t *rate);
int format_info_from_spec(struct format_info *info, const struct sample_spec *ss,
const struct channel_map *map);
int format_info_to_spec(const struct format_info *info, struct sample_spec *ss,
struct channel_map *map);
static inline void format_info_clear(struct format_info *info)
{
pw_properties_free(info->props);
spa_zero(*info);
}
#endif
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