mirror of
https://gitlab.freedesktop.org/pipewire/pipewire
synced 2024-10-01 13:44:40 +00:00
module-rtp: add opus encoding
This commit is contained in:
parent
bcc052f5f1
commit
345582dd15
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@ -282,6 +282,9 @@ else
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endif
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cdata.set('HAVE_PW_CAT_FFMPEG_INTEGRATION', pw_cat_ffmpeg.allowed())
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opus_dep = dependency('opus', required : get_option('opus'))
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summary({'opus (Bluetooth, RTP)': opus_dep.found()}, bool_yn: true, section: 'Misc dependencies')
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summary({'readline (for pw-cli)': readline_dep.found()}, bool_yn: true, section: 'Misc dependencies')
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cdata.set('HAVE_READLINE', readline_dep.found())
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ncurses_dep = dependency('ncursesw', required : false)
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@ -318,3 +318,7 @@ option('rlimits-nice',
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min: -20,
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max: -1,
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value: -19)
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option('opus',
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description: 'Enable code that depends on opus',
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type: 'feature',
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value: 'auto')
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@ -28,6 +28,7 @@ extern "C" {
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#include <spa/param/audio/alac.h>
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#include <spa/param/audio/flac.h>
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#include <spa/param/audio/ape.h>
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#include <spa/param/audio/opus.h>
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struct spa_audio_info {
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uint32_t media_type;
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@ -46,6 +47,7 @@ struct spa_audio_info {
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struct spa_audio_info_alac alac;
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struct spa_audio_info_flac flac;
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struct spa_audio_info_ape ape;
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struct spa_audio_info_ape opus;
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} info;
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};
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29
spa/include/spa/param/audio/opus.h
Normal file
29
spa/include/spa/param/audio/opus.h
Normal file
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@ -0,0 +1,29 @@
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/* Simple Plugin API */
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/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef SPA_AUDIO_OPUS_H
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#define SPA_AUDIO_OPUS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <spa/param/audio/raw.h>
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struct spa_audio_info_opus {
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uint32_t rate; /*< sample rate */
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uint32_t channels; /*< number of channels */
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};
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#define SPA_AUDIO_INFO_OPUS_INIT(...) ((struct spa_audio_info_opus) { __VA_ARGS__ })
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/**
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* \}
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*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* SPA_AUDIO_OPUS_H */
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@ -63,6 +63,7 @@ static const struct spa_type_info spa_type_media_subtype[] = {
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{ SPA_MEDIA_SUBTYPE_alac, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "alac", NULL },
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{ SPA_MEDIA_SUBTYPE_flac, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "flac", NULL },
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{ SPA_MEDIA_SUBTYPE_ape, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "ape", NULL },
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{ SPA_MEDIA_SUBTYPE_opus, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "opus", NULL },
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/* video subtypes */
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{ SPA_MEDIA_SUBTYPE_h264, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "h264", NULL },
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{ SPA_MEDIA_SUBTYPE_mjpg, SPA_TYPE_Int, SPA_TYPE_INFO_MEDIA_SUBTYPE_BASE "mjpg", NULL },
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@ -51,6 +51,7 @@ enum spa_media_subtype {
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SPA_MEDIA_SUBTYPE_alac, /** since 0.3.65 */
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SPA_MEDIA_SUBTYPE_flac, /** since 0.3.65 */
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SPA_MEDIA_SUBTYPE_ape, /** since 0.3.65 */
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SPA_MEDIA_SUBTYPE_opus, /** since 0.3.68 */
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SPA_MEDIA_SUBTYPE_START_Video = 0x20000,
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SPA_MEDIA_SUBTYPE_h264,
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@ -74,7 +74,9 @@ if get_option('spa-plugins').allowed()
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endif
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endif
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summary({'LC3plus': lc3plus_dep.found()}, bool_yn: true, section: 'Bluetooth audio codecs')
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opus_dep = dependency('opus', required : get_option('bluez5-codec-opus'))
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if get_option('bluez5-codec-opus').enabled() and not opus_dep.found()
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error('bluez5-codec-opus enabled, but opus dependency not found')
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endif
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summary({'Opus': opus_dep.found()}, bool_yn: true, section: 'Bluetooth audio codecs')
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lc3_dep = dependency('lc3', required : get_option('bluez5-codec-lc3'))
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summary({'LC3': lc3_dep.found()}, bool_yn: true, section: 'Bluetooth audio codecs')
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@ -525,7 +525,7 @@ pipewire_module_rtp_source = shared_library('pipewire-module-rtp-source',
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install : true,
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install_dir : modules_install_dir,
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install_rpath: modules_install_dir,
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep],
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep, opus_dep],
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)
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pipewire_module_rtp_sink = shared_library('pipewire-module-rtp-sink',
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@ -535,7 +535,7 @@ pipewire_module_rtp_sink = shared_library('pipewire-module-rtp-sink',
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install : true,
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install_dir : modules_install_dir,
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install_rpath: modules_install_dir,
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep],
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep, opus_dep],
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)
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build_module_rtp_session = avahi_dep.found()
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@ -548,7 +548,7 @@ if build_module_rtp_session
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install : true,
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install_dir : modules_install_dir,
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install_rpath: modules_install_dir,
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep, avahi_dep],
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dependencies : [mathlib, dl_lib, rt_lib, pipewire_dep, avahi_dep, opus_dep],
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)
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endif
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369
src/modules/module-rtp/opus.c
Normal file
369
src/modules/module-rtp/opus.c
Normal file
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@ -0,0 +1,369 @@
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/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans <wim.taymans@gmail.com> */
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/* SPDX-License-Identifier: MIT */
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#include <opus/opus.h>
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#include <opus/opus_multistream.h>
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struct rtp_opus_data {
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};
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static void rtp_opus_process_playback(void *data)
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{
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struct impl *impl = data;
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struct pw_buffer *buf;
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struct spa_data *d;
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uint32_t wanted, timestamp, target_buffer, stride, maxsize;
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int32_t avail;
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if ((buf = pw_stream_dequeue_buffer(impl->stream)) == NULL) {
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pw_log_debug("Out of stream buffers: %m");
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return;
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}
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d = buf->buffer->datas;
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stride = impl->stride;
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maxsize = d[0].maxsize / stride;
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wanted = buf->requested ? SPA_MIN(buf->requested, maxsize) : maxsize;
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if (impl->io_position && impl->direct_timestamp) {
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/* in direct mode, read directly from the timestamp index,
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* because sender and receiver are in sync, this would keep
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* target_buffer of samples available. */
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spa_ringbuffer_read_update(&impl->ring,
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impl->io_position->clock.position);
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}
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avail = spa_ringbuffer_get_read_index(&impl->ring, ×tamp);
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target_buffer = impl->target_buffer;
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if (avail < (int32_t)wanted) {
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enum spa_log_level level;
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memset(d[0].data, 0, wanted * stride);
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if (impl->have_sync) {
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impl->have_sync = false;
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level = SPA_LOG_LEVEL_WARN;
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} else {
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level = SPA_LOG_LEVEL_DEBUG;
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}
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pw_log(level, "underrun %d/%u < %u",
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avail, target_buffer, wanted);
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} else {
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float error, corr;
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if (impl->first) {
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if ((uint32_t)avail > target_buffer) {
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uint32_t skip = avail - target_buffer;
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pw_log_debug("first: avail:%d skip:%u target:%u",
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avail, skip, target_buffer);
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timestamp += skip;
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avail = target_buffer;
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}
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impl->first = false;
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} else if (avail > (int32_t)SPA_MIN(target_buffer * 8, BUFFER_SIZE2 / stride)) {
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pw_log_warn("overrun %u > %u", avail, target_buffer * 8);
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timestamp += avail - target_buffer;
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avail = target_buffer;
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}
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if (!impl->direct_timestamp) {
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/* when not using direct timestamp and clocks are not
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* in sync, try to adjust our playback rate to keep the
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* requested target_buffer bytes in the ringbuffer */
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error = (float)target_buffer - (float)avail;
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error = SPA_CLAMP(error, -impl->max_error, impl->max_error);
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corr = spa_dll_update(&impl->dll, error);
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pw_log_debug("avail:%u target:%u error:%f corr:%f", avail,
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target_buffer, error, corr);
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if (impl->io_rate_match) {
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SPA_FLAG_SET(impl->io_rate_match->flags,
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SPA_IO_RATE_MATCH_FLAG_ACTIVE);
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impl->io_rate_match->rate = 1.0f / corr;
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}
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}
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spa_ringbuffer_read_data(&impl->ring,
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impl->buffer,
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BUFFER_SIZE2,
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(timestamp * stride) & BUFFER_MASK2,
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d[0].data, wanted * stride);
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timestamp += wanted;
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spa_ringbuffer_read_update(&impl->ring, timestamp);
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}
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d[0].chunk->size = wanted * stride;
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d[0].chunk->stride = stride;
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d[0].chunk->offset = 0;
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buf->size = wanted;
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pw_stream_queue_buffer(impl->stream, buf);
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}
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static int rtp_opus_receive(struct impl *impl, uint8_t *buffer, ssize_t len)
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{
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struct rtp_header *hdr;
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ssize_t hlen, plen;
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uint16_t seq;
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uint32_t timestamp, samples, write, expected_write;
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uint32_t stride = impl->stride;
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OpusMSDecoder *dec = impl->stream_data;
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int32_t filled;
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int res;
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if (len < 12)
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goto short_packet;
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hdr = (struct rtp_header*)buffer;
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if (hdr->v != 2)
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goto invalid_version;
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hlen = 12 + hdr->cc * 4;
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if (hlen > len)
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goto invalid_len;
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if (impl->have_ssrc && impl->ssrc != hdr->ssrc)
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goto unexpected_ssrc;
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impl->ssrc = hdr->ssrc;
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impl->have_ssrc = true;
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seq = ntohs(hdr->sequence_number);
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if (impl->have_seq && impl->seq != seq) {
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pw_log_info("unexpected seq (%d != %d) SSRC:%u",
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seq, impl->seq, hdr->ssrc);
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impl->have_sync = false;
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}
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impl->seq = seq + 1;
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impl->have_seq = true;
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timestamp = ntohl(hdr->timestamp) - impl->ts_offset;
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impl->receiving = true;
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plen = len - hlen;
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filled = spa_ringbuffer_get_write_index(&impl->ring, &expected_write);
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/* we always write to timestamp + delay */
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write = timestamp + impl->target_buffer;
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if (!impl->have_sync) {
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pw_log_info("sync to timestamp:%u seq:%u ts_offset:%u SSRC:%u target:%u direct:%u",
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timestamp, seq, impl->ts_offset, impl->ssrc,
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impl->target_buffer, impl->direct_timestamp);
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/* we read from timestamp, keeping target_buffer of data
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* in the ringbuffer. */
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impl->ring.readindex = timestamp;
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impl->ring.writeindex = write;
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filled = impl->target_buffer;
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spa_dll_init(&impl->dll);
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spa_dll_set_bw(&impl->dll, SPA_DLL_BW_MIN, 128, impl->rate);
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memset(impl->buffer, 0, BUFFER_SIZE);
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impl->have_sync = true;
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} else if (expected_write != write) {
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pw_log_debug("unexpected write (%u != %u)",
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write, expected_write);
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}
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if (filled + plen > BUFFER_SIZE2 / stride) {
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pw_log_debug("capture overrun %u + %zd > %u", filled, plen,
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BUFFER_SIZE2 / stride);
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impl->have_sync = false;
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} else {
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uint32_t index = (write * stride) & BUFFER_MASK2, end;
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res = opus_multistream_decode_float(dec,
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&buffer[hlen], plen,
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(float*)&impl->buffer[index], 2880,
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0);
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end = index + (res * stride);
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/* fold to the lower part of the ringbuffer when overflow */
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if (end > BUFFER_SIZE2)
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memmove(impl->buffer, &impl->buffer[BUFFER_SIZE2], end - BUFFER_SIZE2);
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pw_log_debug("receiving %zd len:%d timestamp:%d %u", plen, res, timestamp, index);
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samples = res;
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write += samples;
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spa_ringbuffer_write_update(&impl->ring, write);
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}
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return 0;
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short_packet:
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pw_log_warn("short packet received");
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return -EINVAL;
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invalid_version:
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pw_log_warn("invalid RTP version");
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spa_debug_mem(0, buffer, len);
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return -EPROTO;
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invalid_len:
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pw_log_warn("invalid RTP length");
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return -EINVAL;
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unexpected_ssrc:
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pw_log_warn("unexpected SSRC (expected %u != %u)",
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impl->ssrc, hdr->ssrc);
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return -EINVAL;
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}
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static void rtp_opus_flush_packets(struct impl *impl)
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{
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int32_t avail, tosend;
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uint32_t stride, timestamp, offset;
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uint8_t out[1280];
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struct iovec iov[2];
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struct rtp_header header;
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OpusMSEncoder *enc = impl->stream_data;
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int res = 0;
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avail = spa_ringbuffer_get_read_index(&impl->ring, ×tamp);
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tosend = impl->psamples;
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if (avail < tosend)
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return;
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stride = impl->stride;
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spa_zero(header);
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header.v = 2;
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header.pt = impl->payload;
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header.ssrc = htonl(impl->ssrc);
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iov[0].iov_base = &header;
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iov[0].iov_len = sizeof(header);
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iov[1].iov_base = out;
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iov[1].iov_len = 0;
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offset = 0;
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while (avail >= tosend) {
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header.sequence_number = htons(impl->seq);
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header.timestamp = htonl(impl->ts_offset + timestamp);
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res = opus_multistream_encode_float(enc,
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(const float*)&impl->buffer[offset * stride], tosend,
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out, sizeof(out));
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pw_log_debug("sending %d len:%d timestamp:%d", tosend, res, timestamp);
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iov[1].iov_len = res;
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rtp_stream_emit_send_packet(impl, iov, 2);
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impl->seq++;
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timestamp += tosend;
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offset += tosend;
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avail -= tosend;
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}
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pw_log_debug("move %d offset:%d", avail, offset);
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memmove(impl->buffer, &impl->buffer[offset * stride], avail * stride);
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spa_ringbuffer_read_update(&impl->ring, timestamp);
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}
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static void rtp_opus_process_capture(void *data)
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{
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struct impl *impl = data;
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struct pw_buffer *buf;
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struct spa_data *d;
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uint32_t offs, size, timestamp, expected_timestamp, stride;
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int32_t filled, wanted;
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if ((buf = pw_stream_dequeue_buffer(impl->stream)) == NULL) {
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pw_log_debug("Out of stream buffers: %m");
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return;
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}
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d = buf->buffer->datas;
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offs = SPA_MIN(d[0].chunk->offset, d[0].maxsize);
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size = SPA_MIN(d[0].chunk->size, d[0].maxsize - offs);
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stride = impl->stride;
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wanted = size / stride;
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filled = spa_ringbuffer_get_write_index(&impl->ring, &expected_timestamp);
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if (SPA_LIKELY(impl->io_position)) {
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uint32_t rate = impl->io_position->clock.rate.denom;
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timestamp = impl->io_position->clock.position * impl->rate / rate;
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} else
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timestamp = expected_timestamp;
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if (impl->have_sync) {
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if (SPA_ABS((int32_t)expected_timestamp - (int32_t)timestamp) > 32) {
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pw_log_warn("expected %u != timestamp %u", expected_timestamp, timestamp);
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impl->have_sync = false;
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} else if (filled + wanted > (int32_t)(BUFFER_SIZE / stride)) {
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pw_log_warn("overrun %u + %u > %u", filled, wanted, BUFFER_SIZE / stride);
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impl->have_sync = false;
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}
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}
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if (!impl->have_sync) {
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pw_log_info("sync to timestamp:%u seq:%u ts_offset:%u SSRC:%u",
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timestamp, impl->seq, impl->ts_offset, impl->ssrc);
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impl->ring.readindex = impl->ring.writeindex = timestamp;
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memset(impl->buffer, 0, BUFFER_SIZE);
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impl->have_sync = true;
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}
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spa_ringbuffer_write_data(&impl->ring,
|
||||
impl->buffer,
|
||||
BUFFER_SIZE,
|
||||
(filled * stride) & BUFFER_MASK,
|
||||
SPA_PTROFF(d[0].data, offs, void), wanted * stride);
|
||||
timestamp += wanted;
|
||||
spa_ringbuffer_write_update(&impl->ring, timestamp);
|
||||
|
||||
pw_stream_queue_buffer(impl->stream, buf);
|
||||
|
||||
rtp_opus_flush_packets(impl);
|
||||
}
|
||||
|
||||
static int rtp_opus_init(struct impl *impl, enum spa_direction direction)
|
||||
{
|
||||
int err;
|
||||
unsigned char mapping[64];
|
||||
uint32_t i;
|
||||
|
||||
if (impl->psamples >= 2880)
|
||||
impl->psamples = 2880;
|
||||
else if (impl->psamples >= 1920)
|
||||
impl->psamples = 1920;
|
||||
else if (impl->psamples >= 960)
|
||||
impl->psamples = 960;
|
||||
else if (impl->psamples >= 480)
|
||||
impl->psamples = 480;
|
||||
else if (impl->psamples >= 240)
|
||||
impl->psamples = 240;
|
||||
else
|
||||
impl->psamples = 120;
|
||||
|
||||
for (i = 0; i < impl->info.info.opus.channels; i++)
|
||||
mapping[i] = i;
|
||||
|
||||
impl->receive_rtp = rtp_opus_receive;
|
||||
if (direction == SPA_DIRECTION_INPUT) {
|
||||
impl->stream_events.process = rtp_opus_process_capture;
|
||||
|
||||
impl->stream_data = opus_multistream_encoder_create(
|
||||
impl->info.info.opus.rate,
|
||||
impl->info.info.opus.channels,
|
||||
impl->info.info.opus.channels, 0,
|
||||
mapping,
|
||||
OPUS_APPLICATION_AUDIO,
|
||||
&err);
|
||||
}
|
||||
else {
|
||||
impl->stream_events.process = rtp_opus_process_playback;
|
||||
|
||||
impl->stream_data = opus_multistream_decoder_create(
|
||||
impl->info.info.opus.rate,
|
||||
impl->info.info.opus.channels,
|
||||
impl->info.info.opus.channels, 0,
|
||||
mapping,
|
||||
&err);
|
||||
}
|
||||
if (!impl->stream_data)
|
||||
pw_log_error("opus error: %d", err);
|
||||
return impl->stream_data ? 0 : err;
|
||||
}
|
|
@ -5,6 +5,9 @@
|
|||
#include <sys/socket.h>
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <opus/opus.h>
|
||||
#include <opus/opus_multistream.h>
|
||||
|
||||
#include <spa/utils/result.h>
|
||||
#include <spa/utils/json.h>
|
||||
#include <spa/utils/ringbuffer.h>
|
||||
|
@ -46,6 +49,8 @@ struct impl {
|
|||
|
||||
const struct format_info *format_info;
|
||||
|
||||
void *stream_data;
|
||||
|
||||
uint32_t rate;
|
||||
uint32_t stride;
|
||||
uint8_t payload;
|
||||
|
@ -82,6 +87,7 @@ struct impl {
|
|||
|
||||
#include "module-rtp/audio.c"
|
||||
#include "module-rtp/midi.c"
|
||||
#include "module-rtp/opus.c"
|
||||
|
||||
struct format_info {
|
||||
uint32_t media_subtype;
|
||||
|
@ -98,6 +104,7 @@ static const struct format_info audio_format_info[] = {
|
|||
{ SPA_MEDIA_SUBTYPE_raw, SPA_AUDIO_FORMAT_S16_BE, 2, "L16", "audio" },
|
||||
{ SPA_MEDIA_SUBTYPE_raw, SPA_AUDIO_FORMAT_S24_BE, 3, "L24", "audio" },
|
||||
{ SPA_MEDIA_SUBTYPE_control, 0, 1, "rtp-midi", "audio" },
|
||||
{ SPA_MEDIA_SUBTYPE_opus, 0, 4, "opus", "audio" },
|
||||
};
|
||||
|
||||
static void stream_io_changed(void *data, uint32_t id, void *area, uint32_t size)
|
||||
|
@ -285,6 +292,11 @@ struct rtp_stream *rtp_stream_new(struct pw_core *core,
|
|||
impl->info.media_subtype = SPA_MEDIA_SUBTYPE_control;
|
||||
impl->payload = 0x61;
|
||||
}
|
||||
else if (spa_streq(str, "opus")) {
|
||||
impl->info.media_type = SPA_MEDIA_TYPE_audio;
|
||||
impl->info.media_subtype = SPA_MEDIA_SUBTYPE_opus;
|
||||
impl->payload = 127;
|
||||
}
|
||||
else {
|
||||
pw_log_error("unsupported media type:%s", str);
|
||||
res = -EINVAL;
|
||||
|
@ -319,6 +331,25 @@ struct rtp_stream *rtp_stream_new(struct pw_core *core,
|
|||
if (impl->rate == 0)
|
||||
impl->rate = 10000;
|
||||
break;
|
||||
case SPA_MEDIA_SUBTYPE_opus:
|
||||
impl->stream_info.media_type = SPA_MEDIA_TYPE_audio;
|
||||
impl->stream_info.media_subtype = SPA_MEDIA_SUBTYPE_raw;
|
||||
parse_audio_info(props, &impl->stream_info.info.raw);
|
||||
impl->stream_info.info.raw.format = SPA_AUDIO_FORMAT_F32;
|
||||
impl->info.info.opus.rate = impl->stream_info.info.raw.rate;
|
||||
impl->info.info.opus.channels = impl->stream_info.info.raw.channels;
|
||||
|
||||
impl->format_info = find_audio_format_info(&impl->info);
|
||||
if (impl->format_info == NULL) {
|
||||
pw_log_error("unsupported audio format:%d channels:%d",
|
||||
impl->stream_info.info.raw.format,
|
||||
impl->stream_info.info.raw.channels);
|
||||
res = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
impl->stride = impl->format_info->size * impl->stream_info.info.raw.channels;
|
||||
impl->rate = impl->stream_info.info.raw.rate;
|
||||
break;
|
||||
default:
|
||||
spa_assert_not_reached();
|
||||
break;
|
||||
|
@ -419,6 +450,12 @@ struct rtp_stream *rtp_stream_new(struct pw_core *core,
|
|||
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_control));
|
||||
rtp_midi_init(impl, direction);
|
||||
break;
|
||||
case SPA_MEDIA_SUBTYPE_opus:
|
||||
params[n_params++] = spa_format_audio_build(&b,
|
||||
SPA_PARAM_EnumFormat, &impl->stream_info);
|
||||
flags |= PW_STREAM_FLAG_AUTOCONNECT;
|
||||
rtp_opus_init(impl, direction);
|
||||
break;
|
||||
default:
|
||||
res = -EINVAL;
|
||||
goto out;
|
||||
|
|
Loading…
Reference in a new issue