mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-12-16 08:56:45 -05:00
a2dp: move codecs to separate files
This commit is contained in:
Wim Taymans
parent
5c5b9f61bb
commit
e18c4d76dc
8 changed files with 649 additions and 479 deletions
|
|
@ -127,7 +127,7 @@ struct impl {
|
|||
uint64_t next_time;
|
||||
uint64_t last_error;
|
||||
|
||||
struct codec *codec;
|
||||
struct a2dp_codec *codec;
|
||||
void *codec_data;
|
||||
struct spa_audio_info codec_format;
|
||||
|
||||
|
|
@ -143,250 +143,6 @@ struct impl {
|
|||
int tmp_buffer_used;
|
||||
};
|
||||
|
||||
|
||||
struct codec {
|
||||
void *(*fill_caps) (uint32_t flags, uint8_t caps[A2DP_MAX_CONFIG_SIZE]);
|
||||
void *(*select_config) (uint32_t flags, const void *caps, size_t caps_size,
|
||||
const struct spa_audio_info *info, uint8_t config[A2DP_MAX_CONFIG_SIZE]);
|
||||
|
||||
void *(*init) (uint32_t flags, void *config, size_t config_size, struct spa_audio_info *info);
|
||||
|
||||
void (*deinit) (void *data);
|
||||
int (*reduce_bitpool) (void *data);
|
||||
int (*increase_bitpool) (void *data);
|
||||
int (*get_block_size) (void *data);
|
||||
int (*get_num_blocks) (void *data, size_t mtu);
|
||||
int (*start_encode) (void *data,
|
||||
void *dst, size_t dst_size, uint16_t seqnum, uint32_t timestamp);
|
||||
int (*encode) (void *data,
|
||||
const void *src, size_t src_size,
|
||||
void *dst, size_t dst_size,
|
||||
size_t *dst_out);
|
||||
};
|
||||
|
||||
struct impl_sbc {
|
||||
sbc_t sbc;
|
||||
|
||||
struct rtp_header *header;
|
||||
struct rtp_payload *payload;
|
||||
|
||||
int codesize;
|
||||
int frame_length;
|
||||
|
||||
int min_bitpool;
|
||||
int max_bitpool;
|
||||
};
|
||||
|
||||
static int codec_sbc_set_bitpool(struct impl_sbc *this, int bitpool)
|
||||
{
|
||||
this->sbc.bitpool = SPA_CLAMP(bitpool, this->min_bitpool, this->max_bitpool);
|
||||
this->codesize = sbc_get_codesize(&this->sbc);
|
||||
this->frame_length = sbc_get_frame_length(&this->sbc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int codec_sbc_reduce_bitpool(void *data)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
return codec_sbc_set_bitpool(this, this->sbc.bitpool - 2);
|
||||
}
|
||||
|
||||
static int codec_sbc_increase_bitpool(void *data)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
return codec_sbc_set_bitpool(this, this->sbc.bitpool + 1);
|
||||
}
|
||||
|
||||
static int codec_sbc_get_num_blocks(void *data, size_t mtu)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
size_t rtp_size = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
|
||||
size_t frame_count = (mtu - rtp_size) / this->frame_length;
|
||||
|
||||
/* frame_count is only 4 bit number */
|
||||
if (frame_count > 15)
|
||||
frame_count = 15;
|
||||
return frame_count;
|
||||
}
|
||||
|
||||
static int codec_sbc_get_block_size(void *data)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
return this->codesize;
|
||||
}
|
||||
|
||||
static void *codec_sbc_init(uint32_t flags, void *config, size_t config_len, struct spa_audio_info *info)
|
||||
{
|
||||
struct impl_sbc *this;
|
||||
a2dp_sbc_t *conf = config;
|
||||
int res;
|
||||
|
||||
this = calloc(1, sizeof(struct impl_sbc));
|
||||
if (this == NULL) {
|
||||
res = -errno;
|
||||
goto error;
|
||||
}
|
||||
|
||||
sbc_init(&this->sbc, 0);
|
||||
this->sbc.endian = SBC_LE;
|
||||
|
||||
spa_zero(*info);
|
||||
info->media_type = SPA_MEDIA_TYPE_audio;
|
||||
info->media_subtype = SPA_MEDIA_SUBTYPE_raw;
|
||||
info->info.raw.format = SPA_AUDIO_FORMAT_S16;
|
||||
|
||||
switch (conf->frequency) {
|
||||
case SBC_SAMPLING_FREQ_16000:
|
||||
this->sbc.frequency = SBC_FREQ_16000;
|
||||
info->info.raw.rate = 16000;
|
||||
break;
|
||||
case SBC_SAMPLING_FREQ_32000:
|
||||
this->sbc.frequency = SBC_FREQ_32000;
|
||||
info->info.raw.rate = 32000;
|
||||
break;
|
||||
case SBC_SAMPLING_FREQ_44100:
|
||||
this->sbc.frequency = SBC_FREQ_44100;
|
||||
info->info.raw.rate = 44100;
|
||||
break;
|
||||
case SBC_SAMPLING_FREQ_48000:
|
||||
this->sbc.frequency = SBC_FREQ_48000;
|
||||
info->info.raw.rate = 48000;
|
||||
break;
|
||||
default:
|
||||
res = -EINVAL;
|
||||
goto error;
|
||||
}
|
||||
|
||||
switch (conf->channel_mode) {
|
||||
case SBC_CHANNEL_MODE_MONO:
|
||||
this->sbc.mode = SBC_MODE_MONO;
|
||||
info->info.raw.channels = 1;
|
||||
break;
|
||||
case SBC_CHANNEL_MODE_DUAL_CHANNEL:
|
||||
this->sbc.mode = SBC_MODE_DUAL_CHANNEL;
|
||||
info->info.raw.channels = 2;
|
||||
break;
|
||||
case SBC_CHANNEL_MODE_STEREO:
|
||||
this->sbc.mode = SBC_MODE_STEREO;
|
||||
info->info.raw.channels = 2;
|
||||
break;
|
||||
case SBC_CHANNEL_MODE_JOINT_STEREO:
|
||||
this->sbc.mode = SBC_MODE_JOINT_STEREO;
|
||||
info->info.raw.channels = 2;
|
||||
break;
|
||||
default:
|
||||
res = -EINVAL;
|
||||
goto error;
|
||||
}
|
||||
|
||||
switch (info->info.raw.channels) {
|
||||
case 1:
|
||||
info->info.raw.position[0] = SPA_AUDIO_CHANNEL_MONO;
|
||||
break;
|
||||
case 2:
|
||||
info->info.raw.position[0] = SPA_AUDIO_CHANNEL_FL;
|
||||
info->info.raw.position[1] = SPA_AUDIO_CHANNEL_FR;
|
||||
break;
|
||||
}
|
||||
|
||||
switch (conf->subbands) {
|
||||
case SBC_SUBBANDS_4:
|
||||
this->sbc.subbands = SBC_SB_4;
|
||||
break;
|
||||
case SBC_SUBBANDS_8:
|
||||
this->sbc.subbands = SBC_SB_8;
|
||||
break;
|
||||
default:
|
||||
res = -EINVAL;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (conf->allocation_method & SBC_ALLOCATION_LOUDNESS)
|
||||
this->sbc.allocation = SBC_AM_LOUDNESS;
|
||||
else
|
||||
this->sbc.allocation = SBC_AM_SNR;
|
||||
|
||||
switch (conf->block_length) {
|
||||
case SBC_BLOCK_LENGTH_4:
|
||||
this->sbc.blocks = SBC_BLK_4;
|
||||
break;
|
||||
case SBC_BLOCK_LENGTH_8:
|
||||
this->sbc.blocks = SBC_BLK_8;
|
||||
break;
|
||||
case SBC_BLOCK_LENGTH_12:
|
||||
this->sbc.blocks = SBC_BLK_12;
|
||||
break;
|
||||
case SBC_BLOCK_LENGTH_16:
|
||||
this->sbc.blocks = SBC_BLK_16;
|
||||
break;
|
||||
default:
|
||||
res = -EINVAL;
|
||||
goto error;
|
||||
}
|
||||
|
||||
this->min_bitpool = SPA_MAX(conf->min_bitpool, 12);
|
||||
this->max_bitpool = conf->max_bitpool;
|
||||
|
||||
codec_sbc_set_bitpool(this, conf->max_bitpool);
|
||||
|
||||
return this;
|
||||
error:
|
||||
errno = -res;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void codec_sbc_deinit(void *data)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
sbc_finish(&this->sbc);
|
||||
free(this);
|
||||
}
|
||||
|
||||
static int codec_sbc_start_encode (void *data,
|
||||
void *dst, size_t dst_size, uint16_t seqnum, uint32_t timestamp)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
|
||||
this->header = (struct rtp_header *)dst;
|
||||
this->payload = SPA_MEMBER(dst, sizeof(struct rtp_header), struct rtp_payload);
|
||||
memset(this->header, 0, sizeof(struct rtp_header)+sizeof(struct rtp_payload));
|
||||
|
||||
this->payload->frame_count = 0;
|
||||
this->header->v = 2;
|
||||
this->header->pt = 1;
|
||||
this->header->sequence_number = htons(seqnum);
|
||||
this->header->timestamp = htonl(timestamp);
|
||||
this->header->ssrc = htonl(1);
|
||||
return sizeof(struct rtp_header) + sizeof(struct rtp_payload);
|
||||
}
|
||||
|
||||
static int codec_sbc_encode(void *data,
|
||||
const void *src, size_t src_size,
|
||||
void *dst, size_t dst_size,
|
||||
size_t *encoded)
|
||||
{
|
||||
struct impl_sbc *this = data;
|
||||
int res;
|
||||
|
||||
res = sbc_encode(&this->sbc, src, src_size,
|
||||
dst, dst_size, encoded);
|
||||
if (res >= this->codesize)
|
||||
this->payload->frame_count += res / this->codesize;
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
struct codec codec_sbc = {
|
||||
.init = codec_sbc_init,
|
||||
.deinit = codec_sbc_deinit,
|
||||
.reduce_bitpool = codec_sbc_reduce_bitpool,
|
||||
.increase_bitpool = codec_sbc_increase_bitpool,
|
||||
.get_block_size = codec_sbc_get_block_size,
|
||||
.get_num_blocks = codec_sbc_get_num_blocks,
|
||||
.start_encode = codec_sbc_start_encode,
|
||||
.encode = codec_sbc_encode,
|
||||
};
|
||||
|
||||
#define NAME "a2dp-sink"
|
||||
|
||||
#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0)
|
||||
|
|
@ -1501,8 +1257,7 @@ impl_init(const struct spa_handle_factory *factory,
|
|||
this->timerfd = spa_system_timerfd_create(this->data_system,
|
||||
CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
|
||||
|
||||
this->codec = &codec_sbc;
|
||||
|
||||
this->codec = &a2dp_codec_sbc;
|
||||
this->codec_data = this->codec->init(0, this->transport->configuration,
|
||||
this->transport->configuration_len,
|
||||
&this->codec_format);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue