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/***
This file is part of PulseAudio.
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 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "core-format.h"
#include <pulse/def.h>
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
int pa_format_info_get_sample_format(const pa_format_info *f, pa_sample_format_t *sf) {
int r;
char *sf_str;
pa_sample_format_t sf_local;
pa_assert(f);
pa_assert(sf);
r = pa_format_info_get_prop_string(f, PA_PROP_FORMAT_SAMPLE_FORMAT, &sf_str);
if (r < 0)
return r;
sf_local = pa_parse_sample_format(sf_str);
pa_xfree(sf_str);
if (!pa_sample_format_valid(sf_local)) {
pa_log_debug("Invalid sample format.");
return -PA_ERR_INVALID;
}
*sf = sf_local;
return 0;
}
int pa_format_info_get_rate(const pa_format_info *f, uint32_t *rate) {
int r;
int rate_local;
pa_assert(f);
pa_assert(rate);
r = pa_format_info_get_prop_int(f, PA_PROP_FORMAT_RATE, &rate_local);
if (r < 0)
return r;
if (!pa_sample_rate_valid(rate_local)) {
pa_log_debug("Invalid sample rate: %i", rate_local);
return -PA_ERR_INVALID;
}
*rate = rate_local;
return 0;
}
int pa_format_info_get_channels(const pa_format_info *f, uint8_t *channels) {
int r;
int channels_local;
pa_assert(f);
pa_assert(channels);
r = pa_format_info_get_prop_int(f, PA_PROP_FORMAT_CHANNELS, &channels_local);
if (r < 0)
return r;
if (!pa_channels_valid(channels_local)) {
pa_log_debug("Invalid channel count: %i", channels_local);
return -PA_ERR_INVALID;
}
*channels = channels_local;
return 0;
}
int pa_format_info_get_channel_map(const pa_format_info *f, pa_channel_map *map) {
int r;
char *map_str;
pa_assert(f);
pa_assert(map);
r = pa_format_info_get_prop_string(f, PA_PROP_FORMAT_CHANNEL_MAP, &map_str);
if (r < 0)
return r;
map = pa_channel_map_parse(map, map_str);
pa_xfree(map_str);
if (!map) {
pa_log_debug("Failed to parse channel map.");
return -PA_ERR_INVALID;
}
return 0;
}
pa_format_info *pa_format_info_from_sample_spec2(const pa_sample_spec *ss, const pa_channel_map *map, bool set_format,
bool set_rate, bool set_channels) {
pa_format_info *format = NULL;
pa_assert(ss);
format = pa_format_info_new();
format->encoding = PA_ENCODING_PCM;
if (set_format)
pa_format_info_set_sample_format(format, ss->format);
if (set_rate)
pa_format_info_set_rate(format, ss->rate);
if (set_channels) {
pa_format_info_set_channels(format, ss->channels);
if (map) {
if (map->channels != ss->channels) {
pa_log_debug("Channel map is incompatible with the sample spec.");
goto fail;
}
pa_format_info_set_channel_map(format, map);
}
}
return format;
fail:
if (format)
pa_format_info_free(format);
return NULL;
}
int pa_format_info_to_sample_spec2(const pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map,
const pa_sample_spec *fallback_ss, const pa_channel_map *fallback_map) {
int r, r2;
pa_sample_spec ss_local;
pa_channel_map map_local;
pa_assert(f);
pa_assert(ss);
pa_assert(map);
pa_assert(fallback_ss);
pa_assert(fallback_map);
if (!pa_format_info_is_pcm(f))
return pa_format_info_to_sample_spec_fake(f, ss, map);
r = pa_format_info_get_sample_format(f, &ss_local.format);
if (r == -PA_ERR_NOENTITY)
ss_local.format = fallback_ss->format;
else if (r < 0)
return r;
pa_assert(pa_sample_format_valid(ss_local.format));
r = pa_format_info_get_rate(f, &ss_local.rate);
if (r == -PA_ERR_NOENTITY)
ss_local.rate = fallback_ss->rate;
else if (r < 0)
return r;
pa_assert(pa_sample_rate_valid(ss_local.rate));
r = pa_format_info_get_channels(f, &ss_local.channels);
r2 = pa_format_info_get_channel_map(f, &map_local);
if (r == -PA_ERR_NOENTITY && r2 >= 0)
ss_local.channels = map_local.channels;
else if (r == -PA_ERR_NOENTITY)
ss_local.channels = fallback_ss->channels;
else if (r < 0)
return r;
pa_assert(pa_channels_valid(ss_local.channels));
if (r2 >= 0 && map_local.channels != ss_local.channels) {
pa_log_debug("Channel map is not compatible with the sample spec.");
return -PA_ERR_INVALID;
}
if (r2 == -PA_ERR_NOENTITY) {
if (fallback_map->channels == ss_local.channels)
map_local = *fallback_map;
else
pa_channel_map_init_extend(&map_local, ss_local.channels, PA_CHANNEL_MAP_DEFAULT);
} else if (r2 < 0)
return r2;
pa_assert(pa_channel_map_valid(&map_local));
pa_assert(ss_local.channels == map_local.channels);
*ss = ss_local;
*map = map_local;
return 0;
}
int pa_format_info_to_sample_spec_fake(const pa_format_info *f, pa_sample_spec *ss, pa_channel_map *map) {
int rate;
pa_assert(f);
pa_assert(ss);
/* Note: When we add support for non-IEC61937 encapsulated compressed
* formats, this function should return a non-zero values for these. */
ss->format = PA_SAMPLE_S16LE;
ss->channels = 2;
if (map)
pa_channel_map_init_stereo(map);
pa_return_val_if_fail(pa_format_info_get_prop_int(f, PA_PROP_FORMAT_RATE, &rate) == 0, -PA_ERR_INVALID);
ss->rate = (uint32_t) rate;
if (f->encoding == PA_ENCODING_EAC3_IEC61937)
ss->rate *= 4;
return 0;
}
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