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bluetooth: Add faststream codec

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Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/628>
This commit is contained in:
Igor V. Kovalenko 2021-04-20 19:30:52 +03:00
parent 0498e7a3d0
commit cddb9f144a
7 changed files with 482 additions and 27 deletions
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36
src/modules/bluetooth/module-bluez5-device.c
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@ -1342,6 +1342,7 @@ static pa_direction_t get_profile_direction(pa_bluetooth_profile_t p) {
/* Run from main thread */
static int transport_config(struct userdata *u) {
bool reverse_backchannel;
pa_assert(u);
pa_assert(u->transport);
pa_assert(!u->bt_codec);
@ -1354,15 +1355,18 @@ static int transport_config(struct userdata *u) {
/* reset encoder buffer contents */
u->encoder_buffer_used = 0;
if (get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT) {
u->encoder_info = u->bt_codec->init(true, false, u->transport->config, u->transport->config_size, &u->encoder_sample_spec, u->core);
/* forward encoding direction */
reverse_backchannel = u->bt_codec->support_backchannel && !(get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT);
if ((get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT) || u->bt_codec->support_backchannel) {
u->encoder_info = u->bt_codec->init(true, reverse_backchannel, u->transport->config, u->transport->config_size, &u->encoder_sample_spec, u->core);
if (!u->encoder_info)
return -1;
}
if (get_profile_direction(u->profile) & PA_DIRECTION_INPUT) {
u->decoder_info = u->bt_codec->init(false, false, u->transport->config, u->transport->config_size, &u->decoder_sample_spec, u->core);
if ((get_profile_direction(u->profile) & PA_DIRECTION_INPUT) || u->bt_codec->support_backchannel) {
u->decoder_info = u->bt_codec->init(false, reverse_backchannel, u->transport->config, u->transport->config_size, &u->decoder_sample_spec, u->core);
if (!u->decoder_info) {
if (u->encoder_info) {
@ -1420,11 +1424,11 @@ static int init_profile(struct userdata *u) {
pa_assert(u->transport);
if (get_profile_direction (u->profile) & PA_DIRECTION_OUTPUT)
if ((get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT) || u->bt_codec->support_backchannel)
if (add_sink(u) < 0)
r = -1;
if (get_profile_direction (u->profile) & PA_DIRECTION_INPUT)
if ((get_profile_direction(u->profile) & PA_DIRECTION_INPUT) || u->bt_codec->support_backchannel)
if (add_source(u) < 0)
r = -1;
@ -1625,13 +1629,15 @@ static void thread_func(void *userdata) {
skip_bytes -= bytes_to_render;
}
if (u->write_index > 0 && (get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT)) {
size_t new_write_block_size = u->bt_codec->reduce_encoder_bitrate(u->encoder_info, u->write_link_mtu);
if (new_write_block_size) {
u->write_block_size = new_write_block_size;
handle_sink_block_size_change(u);
if (u->write_index > 0 && (get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT || u->bt_codec->support_backchannel)) {
if (u->bt_codec->reduce_encoder_bitrate) {
size_t new_write_block_size = u->bt_codec->reduce_encoder_bitrate(u->encoder_info, u->write_link_mtu);
if (new_write_block_size) {
u->write_block_size = new_write_block_size;
handle_sink_block_size_change(u);
}
pa_gettimeofday(&tv_last_output_rate_change);
}
pa_gettimeofday(&tv_last_output_rate_change);
}
}
@ -1674,7 +1680,7 @@ static void thread_func(void *userdata) {
sleep_for = time_passed < next_write_at ? next_write_at - time_passed : 0;
/* pa_log("Sleeping for %lu; time passed %lu, next write at %lu", (unsigned long) sleep_for, (unsigned long) time_passed, (unsigned long)next_write_at); */
if ((get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT) && u->write_memchunk.memblock == NULL) {
if ((get_profile_direction(u->profile) & PA_DIRECTION_OUTPUT || u->bt_codec->support_backchannel) && u->write_memchunk.memblock == NULL) {
/* bt_write_buffer() is keeping up with input, try increasing bitrate */
if (u->bt_codec->increase_encoder_bitrate
&& pa_timeval_age(&tv_last_output_rate_change) >= u->device->output_rate_refresh_interval_ms * PA_USEC_PER_MSEC) {
@ -1906,10 +1912,10 @@ static pa_available_t get_port_availability(struct userdata *u, pa_direction_t d
for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++) {
pa_bluetooth_transport *transport;
if (!(get_profile_direction(i) & direction))
if (!(transport = u->device->transports[i]))
continue;
if (!(transport = u->device->transports[i]))
if (!(get_profile_direction(i) & direction || (transport->bt_codec && transport->bt_codec->support_backchannel)))
continue;
switch(transport->state) {