/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow flow definition packet
* @return an error code
*/
static int upipe_filter_ebur128_set_flow_def(struct upipe *upipe,
struct uref *flow)
{
struct upipe_filter_ebur128 *upipe_filter_ebur128 =
upipe_filter_ebur128_from_upipe(upipe);
if (flow == NULL)
return UBASE_ERR_INVALID;
UBASE_RETURN(uref_flow_match_def(flow, "sound.s16."))
uint8_t channels, planes;
uint64_t rate;
if (unlikely(!ubase_check(uref_sound_flow_get_rate(flow, &rate))
|| !ubase_check(uref_sound_flow_get_channels(flow, &channels))
|| !ubase_check(uref_sound_flow_get_planes(flow, &planes))
|| planes != 1)) {
return UBASE_ERR_INVALID;
}
struct uref *flow_dup;
if (unlikely((flow_dup = uref_dup(flow)) == NULL)) {
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return UBASE_ERR_ALLOC;
}
if (unlikely(upipe_filter_ebur128->st)) {
//ebur128_destroy(&upipe_filter_ebur128->st);
ebur128_change_parameters(upipe_filter_ebur128->st, channels, rate);
} else {
upipe_filter_ebur128->st = ebur128_init(channels, rate,
EBUR128_MODE_LRA | EBUR128_MODE_I | EBUR128_MODE_HISTOGRAM);
}
upipe_filter_ebur128_store_flow_def(upipe, flow_dup);
return UBASE_ERR_NONE;
}
/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow_def flow definition packet
* @return an error code
*/
static int upipe_s337d_set_flow_def(struct upipe *upipe, struct uref *flow_def)
{
if (flow_def == NULL)
return UBASE_ERR_INVALID;
const char *def;
uint64_t rate;
if (unlikely(!ubase_check(uref_flow_get_def(flow_def, &def)) ||
(ubase_ncmp(def, "block.s337.") &&
strcmp(def, "block.")) ||
!ubase_check(uref_sound_flow_get_rate(flow_def, &rate))))
return UBASE_ERR_INVALID;
struct uref *flow_def_dup;
if (unlikely((flow_def_dup = uref_dup(flow_def)) == NULL)) {
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return UBASE_ERR_ALLOC;
}
struct upipe_s337d *upipe_s337d = upipe_s337d_from_upipe(upipe);
upipe_s337d->sample_rate = rate;
flow_def = upipe_s337d_store_flow_def_input(upipe, flow_def_dup);
if (flow_def != NULL)
upipe_s337d_store_flow_def(upipe, flow_def);
return UBASE_ERR_NONE;
}
/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow_def flow definition packet
* @return an error code
*/
static int upipe_s337_encaps_set_flow_def(struct upipe *upipe,
struct uref *flow_def)
{
if (flow_def == NULL)
return UBASE_ERR_INVALID;
const char *def;
UBASE_RETURN(uref_flow_get_def(flow_def, &def))
uint64_t rate;
UBASE_RETURN(uref_sound_flow_get_rate(flow_def, &rate))
if (ubase_ncmp(def, EXPECTED_FLOW_DEF))
return UBASE_ERR_INVALID;
struct uref *flow_def_dup = uref_dup(flow_def);
if (flow_def_dup == NULL)
return UBASE_ERR_ALLOC;
uref_flow_set_def(flow_def_dup, "sound.s32.s337.a52.");
uref_sound_flow_set_channels(flow_def_dup, 2);
uref_sound_flow_set_sample_size(flow_def_dup, 2*4);
if (!ubase_check(uref_sound_flow_add_plane(flow_def_dup, "lr")) ||
!ubase_check(uref_sound_flow_set_rate(flow_def_dup, rate))) {
uref_free(flow_def_dup);
return UBASE_ERR_ALLOC;
}
upipe_s337_encaps_require_ubuf_mgr(upipe, flow_def_dup);
return UBASE_ERR_NONE;
}
/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow flow definition packet
* @return an error code
*/
static int upipe_filter_ebur128_set_flow_def(struct upipe *upipe,
struct uref *flow)
{
struct upipe_filter_ebur128 *upipe_filter_ebur128 =
upipe_filter_ebur128_from_upipe(upipe);
if (flow == NULL)
return UBASE_ERR_INVALID;
enum upipe_filter_ebur128_fmt fmt;
const char *def;
UBASE_RETURN(uref_flow_get_def(flow, &def))
if (!ubase_ncmp(def, "sound.s16."))
fmt = UPIPE_FILTER_EBUR128_SHORT;
else if (!ubase_ncmp(def, "sound.s32."))
fmt = UPIPE_FILTER_EBUR128_INT;
else if (!ubase_ncmp(def, "sound.f32."))
fmt = UPIPE_FILTER_EBUR128_FLOAT;
else if (!ubase_ncmp(def, "sound.f64."))
fmt = UPIPE_FILTER_EBUR128_DOUBLE;
else
return UBASE_ERR_INVALID;
uint64_t rate;
if (unlikely(!ubase_check(uref_sound_flow_get_rate(flow, &rate))
|| !ubase_check(uref_sound_flow_get_channels(flow,
&upipe_filter_ebur128->channels))
|| !ubase_check(uref_sound_flow_get_planes(flow,
&upipe_filter_ebur128->planes))))
return UBASE_ERR_INVALID;
struct uref *flow_dup;
if (unlikely((flow_dup = uref_dup(flow)) == NULL)) {
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return UBASE_ERR_ALLOC;
}
upipe_filter_ebur128->fmt = fmt;
if (unlikely(upipe_filter_ebur128->st)) {
//ebur128_destroy(&upipe_filter_ebur128->st);
ebur128_change_parameters(upipe_filter_ebur128->st,
upipe_filter_ebur128->channels, rate);
} else {
upipe_filter_ebur128->st =
ebur128_init(upipe_filter_ebur128->channels, rate,
EBUR128_MODE_LRA | EBUR128_MODE_I | EBUR128_MODE_HISTOGRAM);
}
upipe_filter_ebur128_store_flow_def(upipe, flow_dup);
return UBASE_ERR_NONE;
}
/** @internal @This checks the validity of a sound flow def.
*
* @param upipe description structure of the pipe
* @param flow_def flow definition to check
* @return an error code
*/
static int upipe_ablk_check_flow_def(struct upipe *upipe,
struct uref *flow_def)
{
uint8_t planes, sample_size, channels;
uint64_t rate, samples;
UBASE_RETURN(uref_flow_match_def(flow_def, UREF_SOUND_FLOW_DEF));
UBASE_RETURN(uref_sound_flow_get_planes(flow_def, &planes));
UBASE_RETURN(uref_sound_flow_get_channels(flow_def, &channels));
UBASE_RETURN(uref_sound_flow_get_rate(flow_def, &rate));
UBASE_RETURN(uref_sound_flow_get_sample_size(flow_def, &sample_size));
UBASE_RETURN(uref_sound_flow_get_samples(flow_def, &samples));
return UBASE_ERR_NONE;
}
/** @internal @This creates a new audioqueue
* @param upipe description structure of the pipe
* @param flow description structure of the flow
* @return an error code
*/
static int upipe_osx_audioqueue_sink_set_flow_def(struct upipe *upipe,
struct uref *flow)
{
OSStatus status;
uint64_t sample_rate = 0; /* hush gcc */
uint8_t channels = 0;
uint8_t sample_size = 0;
struct AudioStreamBasicDescription fmt;
struct upipe_osx_audioqueue_sink *osx_audioqueue =
upipe_osx_audioqueue_sink_from_upipe(upipe);
if (unlikely(osx_audioqueue->queue)) {
upipe_osx_audioqueue_sink_remove(upipe);
}
/* retrieve flow format information */
uref_sound_flow_get_rate(flow, &sample_rate);
uref_sound_flow_get_sample_size(flow, &sample_size);
uref_sound_flow_get_channels(flow, &channels);
/* build format description */
memset(&fmt, 0, sizeof(struct AudioStreamBasicDescription));
fmt.mSampleRate = sample_rate;
fmt.mFormatID = kAudioFormatLinearPCM;
fmt.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
fmt.mFramesPerPacket = 1;
fmt.mChannelsPerFrame = channels;
fmt.mBytesPerPacket = fmt.mBytesPerFrame = sample_size * channels;
fmt.mBitsPerChannel = sample_size * 8;
/* create queue */
status = AudioQueueNewOutput(&fmt, upipe_osx_audioqueue_sink_cb, upipe,
NULL, kCFRunLoopCommonModes, 0, &osx_audioqueue->queue);
if (unlikely(status == kAudioFormatUnsupportedDataFormatError)) {
upipe_warn(upipe, "unsupported data format");
return UBASE_ERR_EXTERNAL;
}
/* change volume */
AudioQueueSetParameter(osx_audioqueue->queue, kAudioQueueParam_Volume,
osx_audioqueue->volume);
/* start queue ! */
AudioQueueStart(osx_audioqueue->queue, NULL);
upipe_notice_va(upipe, "audioqueue started (%uHz, %hhuch, %db)",
sample_rate, channels, sample_size*8);
return UBASE_ERR_NONE;
}
/** @internal @This allocates a blank source pipe.
*
* @param mgr common management structure
* @param uprobe structure used to raise events
* @param signature signature of the pipe allocator
* @param args optional arguments
* @return pointer to upipe or NULL in case of allocation error
*/
static struct upipe *upipe_blksrc_alloc(struct upipe_mgr *mgr,
struct uprobe *uprobe,
uint32_t signature, va_list args)
{
struct uref *flow_def;
struct upipe *upipe = upipe_blksrc_alloc_flow(mgr, uprobe, signature, args,
&flow_def);
if (unlikely(!upipe)) {
return NULL;
}
struct upipe_blksrc *upipe_blksrc = upipe_blksrc_from_upipe(upipe);
upipe_blksrc_init_urefcount(upipe);
upipe_blksrc_init_urefcount_real(upipe);
upipe_blksrc_init_src_probe(upipe);
upipe_blksrc_init_blk_probe(upipe);
upipe_blksrc_init_bin_input(upipe);
upipe_blksrc_init_bin_output(upipe);
upipe_blksrc->flow_def = flow_def;
upipe_throw_ready(upipe);
uint64_t duration = 0;
if (ubase_check(uref_flow_match_def(flow_def, UREF_PIC_FLOW_DEF))) {
struct urational fps;
if (unlikely(!ubase_check(uref_pic_flow_get_fps(flow_def, &fps)))) {
upipe_release(upipe);
return NULL;
}
duration = (uint64_t)UCLOCK_FREQ * fps.den / fps.num;
}
else if (ubase_check(uref_flow_match_def(flow_def, UREF_SOUND_FLOW_DEF))) {
uint64_t samples, rate;
if (unlikely(!ubase_check(uref_sound_flow_get_samples(flow_def,
&samples))) ||
unlikely(!ubase_check(uref_sound_flow_get_rate(flow_def,
&rate)))) {
upipe_release(upipe);
return NULL;
}
duration = samples * UCLOCK_FREQ / rate;
}
else {
upipe_warn(upipe, "unsupported flow def");
upipe_release(upipe);
return NULL;
}
struct uref *src_flow_def = uref_void_flow_alloc_def(flow_def->mgr);
if (unlikely(!src_flow_def)) {
upipe_err(upipe, "fail to allocate source pipe flow def");
upipe_release(upipe);
return NULL;
}
if (unlikely(!ubase_check(uref_clock_set_duration(src_flow_def,
duration)))) {
uref_free(src_flow_def);
upipe_release(upipe);
return NULL;
}
struct upipe_mgr *upipe_voidsrc_mgr = upipe_voidsrc_mgr_alloc();
if (unlikely(!upipe_voidsrc_mgr)) {
upipe_err(upipe, "fail to get void source manager");
uref_free(src_flow_def);
upipe_release(upipe);
return NULL;
}
struct upipe *src =
upipe_flow_alloc(upipe_voidsrc_mgr,
uprobe_pfx_alloc(
uprobe_use(&upipe_blksrc->src_probe),
UPROBE_LOG_VERBOSE,
"src"),
src_flow_def);
upipe_mgr_release(upipe_voidsrc_mgr);
uref_free(src_flow_def);
if (unlikely(!src)) {
upipe_err(upipe, "fail to allocate source pipe");
upipe_release(upipe);
return NULL;
}
upipe_blksrc_store_bin_input(upipe, src);
struct upipe_mgr *upipe_blk_mgr = NULL;
if (ubase_check(uref_flow_match_def(flow_def, UREF_PIC_FLOW_DEF))) {
upipe_blk_mgr = upipe_vblk_mgr_alloc();
}
else if (ubase_check(uref_flow_match_def(flow_def, UREF_SOUND_FLOW_DEF))) {
upipe_blk_mgr = upipe_ablk_mgr_alloc();
}
if (unlikely(!upipe_blk_mgr)) {
upipe_err(upipe, "fail to get blank generator manager");
upipe_release(upipe);
return NULL;
}
struct upipe *blk =
upipe_flow_alloc(upipe_blk_mgr,
uprobe_pfx_alloc(
uprobe_use(&upipe_blksrc->blk_probe),
UPROBE_LOG_VERBOSE,
"blk"),
flow_def);
upipe_mgr_release(upipe_blk_mgr);
if (unlikely(!blk)) {
upipe_err(upipe, "fail to allocate blank generator pipe");
upipe_release(upipe);
return NULL;
}
upipe_blksrc_store_bin_output(upipe, blk);
if (unlikely(!ubase_check(upipe_set_output(src, blk)))) {
upipe_release(upipe);
return NULL;
}
return upipe;
}
/** @internal @This handles data.
*
* @param upipe description structure of the pipe
* @param uref uref structure
* @param upump_p reference to pump that generated the buffer
* @return false if the input must be blocked
*/
static bool upipe_speexdsp_handle(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
struct urational drift_rate;
if (!ubase_check(uref_clock_get_rate(uref, &drift_rate)))
drift_rate = (struct urational){ 1, 1 };
/* reinitialize resampler when drift rate changes */
if (urational_cmp(&drift_rate, &upipe_speexdsp->drift_rate)) {
upipe_speexdsp->drift_rate = drift_rate;
spx_uint32_t ratio_num = drift_rate.den;
spx_uint32_t ratio_den = drift_rate.num;
spx_uint32_t in_rate = upipe_speexdsp->rate * ratio_num / ratio_den;
spx_uint32_t out_rate = upipe_speexdsp->rate;
int err = speex_resampler_set_rate_frac(upipe_speexdsp->ctx,
ratio_num, ratio_den, in_rate, out_rate);
if (err) {
upipe_err_va(upipe, "Couldn't resample from %u to %u: %s",
in_rate, out_rate, speex_resampler_strerror(err));
} else {
upipe_dbg_va(upipe, "Resampling from %u to %u",
in_rate, out_rate);
}
}
size_t size;
if (!ubase_check(uref_sound_size(uref, &size, NULL /* sample_size */))) {
uref_free(uref);
return true;
}
struct ubuf *ubuf = ubuf_sound_alloc(upipe_speexdsp->ubuf_mgr, size + 10);
if (!ubuf)
return false;
const void *in;
uref_sound_read_void(uref, 0, -1, &in, 1);
void *out;
ubuf_sound_write_void(ubuf, 0, -1, &out, 1);
spx_uint32_t in_len = size; /* input size */
spx_uint32_t out_len = size + 10; /* available output size */
int err;
if (upipe_speexdsp->f32)
err = speex_resampler_process_interleaved_float(upipe_speexdsp->ctx,
in, &in_len, out, &out_len);
else
err = speex_resampler_process_interleaved_int(upipe_speexdsp->ctx,
in, &in_len, out, &out_len);
if (err) {
upipe_err_va(upipe, "Could not resample: %s",
speex_resampler_strerror(err));
}
uref_sound_unmap(uref, 0, -1, 1);
ubuf_sound_unmap(ubuf, 0, -1, 1);
if (err) {
ubuf_free(ubuf);
} else {
ubuf_sound_resize(ubuf, 0, out_len);
uref_attach_ubuf(uref, ubuf);
}
upipe_speexdsp_output(upipe, uref, upump_p);
return true;
}
/** @internal @This receives incoming uref.
*
* @param upipe description structure of the pipe
* @param uref uref structure describing the picture
* @param upump_p reference to pump that generated the buffer
*/
static void upipe_speexdsp_input(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
if (!upipe_speexdsp_check_input(upipe)) {
upipe_speexdsp_hold_input(upipe, uref);
upipe_speexdsp_block_input(upipe, upump_p);
} else if (!upipe_speexdsp_handle(upipe, uref, upump_p)) {
upipe_speexdsp_hold_input(upipe, uref);
upipe_speexdsp_block_input(upipe, upump_p);
/* Increment upipe refcount to avoid disappearing before all packets
* have been sent. */
upipe_use(upipe);
}
}
/** @internal @This receives a provided ubuf manager.
*
* @param upipe description structure of the pipe
* @param flow_format amended flow format
* @return an error code
*/
static int upipe_speexdsp_check(struct upipe *upipe, struct uref *flow_format)
{
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
if (flow_format != NULL)
upipe_speexdsp_store_flow_def(upipe, flow_format);
if (upipe_speexdsp->flow_def == NULL)
return UBASE_ERR_NONE;
bool was_buffered = !upipe_speexdsp_check_input(upipe);
upipe_speexdsp_output_input(upipe);
upipe_speexdsp_unblock_input(upipe);
if (was_buffered && upipe_speexdsp_check_input(upipe)) {
/* All packets have been output, release again the pipe that has been
* used in @ref upipe_speexdsp_input. */
upipe_release(upipe);
}
return UBASE_ERR_NONE;
}
/** @internal @This sets the input flow definition.
*
* @param upipe description structure of the pipe
* @param flow_def flow definition packet
* @return an error code
*/
static int upipe_speexdsp_set_flow_def(struct upipe *upipe, struct uref *flow_def)
{
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
if (flow_def == NULL)
return UBASE_ERR_INVALID;
const char *def;
UBASE_RETURN(uref_flow_get_def(flow_def, &def))
if (unlikely(ubase_ncmp(def, "sound.f32.") &&
ubase_ncmp(def, "sound.s16.")))
return UBASE_ERR_INVALID;
uint8_t in_planes;
if (unlikely(!ubase_check(uref_sound_flow_get_planes(flow_def,
&in_planes))))
return UBASE_ERR_INVALID;
if (in_planes != 1) {
upipe_err(upipe, "only interleaved audio is supported");
return UBASE_ERR_INVALID;
}
if (!ubase_check(uref_sound_flow_get_rate(flow_def,
&upipe_speexdsp->rate))) {
upipe_err(upipe, "no sound rate defined");
uref_dump(flow_def, upipe->uprobe);
return UBASE_ERR_INVALID;
}
uint8_t channels;
if (unlikely(!ubase_check(uref_sound_flow_get_channels(flow_def,
&channels))))
return UBASE_ERR_INVALID;
flow_def = uref_dup(flow_def);
if (unlikely(flow_def == NULL)) {
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return UBASE_ERR_ALLOC;
}
upipe_speexdsp_require_ubuf_mgr(upipe, flow_def);
if (upipe_speexdsp->ctx)
speex_resampler_destroy(upipe_speexdsp->ctx);
upipe_speexdsp->f32 = !ubase_ncmp(def, "sound.f32.");
int err;
upipe_speexdsp->ctx = speex_resampler_init(channels,
upipe_speexdsp->rate, upipe_speexdsp->rate,
upipe_speexdsp->quality, &err);
if (!upipe_speexdsp->ctx) {
upipe_err_va(upipe, "Could not create resampler: %s",
speex_resampler_strerror(err));
return UBASE_ERR_INVALID;
}
return UBASE_ERR_NONE;
}
/** @internal @This provides a flow format suggestion.
*
* @param upipe description structure of the pipe
* @param request description structure of the request
* @return an error code
*/
static int upipe_speexdsp_provide_flow_format(struct upipe *upipe,
struct urequest *request)
{
const char *def;
UBASE_RETURN(uref_flow_get_def(request->uref, &def))
uint8_t channels;
UBASE_RETURN(uref_sound_flow_get_channels(request->uref, &channels))
uint8_t planes;
UBASE_RETURN(uref_sound_flow_get_planes(request->uref, &planes))
uint8_t sample_size;
UBASE_RETURN(uref_sound_flow_get_sample_size(request->uref, &sample_size))
struct uref *flow = uref_dup(request->uref);
UBASE_ALLOC_RETURN(flow);
uref_sound_flow_clear_format(flow);
uref_sound_flow_set_planes(flow, 0);
uref_sound_flow_set_channels(flow, channels);
uref_sound_flow_add_plane(flow, "all");
if (ubase_ncmp(def, "sound.s16.")) {
uref_flow_set_def(flow, "sound.f32."); /* prefer f32 over s16 */
uref_sound_flow_set_sample_size(flow, 4 * channels);
} else {
uref_flow_set_def(flow, def);
uref_sound_flow_set_sample_size(flow, (planes > 1) ? sample_size :
sample_size / channels);
}
return urequest_provide_flow_format(request, flow);
}
/** @internal @This processes control commands on a speexdsp pipe.
*
* @param upipe description structure of the pipe
* @param command type of command to process
* @param args arguments of the command
* @return an error code
*/
static int upipe_speexdsp_control(struct upipe *upipe, int command, va_list args)
{
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
switch (command) {
/* generic commands */
case UPIPE_REGISTER_REQUEST: {
struct urequest *request = va_arg(args, struct urequest *);
if (request->type == UREQUEST_FLOW_FORMAT)
return upipe_speexdsp_provide_flow_format(upipe, request);
if (request->type == UREQUEST_UBUF_MGR)
return upipe_throw_provide_request(upipe, request);
return upipe_speexdsp_alloc_output_proxy(upipe, request);
}
case UPIPE_UNREGISTER_REQUEST: {
struct urequest *request = va_arg(args, struct urequest *);
if (request->type == UREQUEST_FLOW_FORMAT ||
request->type == UREQUEST_UBUF_MGR)
return UBASE_ERR_NONE;
return upipe_speexdsp_free_output_proxy(upipe, request);
}
case UPIPE_GET_OUTPUT: {
struct upipe **p = va_arg(args, struct upipe **);
return upipe_speexdsp_get_output(upipe, p);
}
case UPIPE_SET_OUTPUT: {
struct upipe *output = va_arg(args, struct upipe *);
return upipe_speexdsp_set_output(upipe, output);
}
case UPIPE_GET_FLOW_DEF: {
struct uref **p = va_arg(args, struct uref **);
return upipe_speexdsp_get_flow_def(upipe, p);
}
case UPIPE_SET_FLOW_DEF: {
struct uref *flow = va_arg(args, struct uref *);
return upipe_speexdsp_set_flow_def(upipe, flow);
}
case UPIPE_SET_OPTION: {
const char *option = va_arg(args, const char *);
const char *value = va_arg(args, const char *);
if (strcmp(option, "quality"))
return UBASE_ERR_INVALID;
if (upipe_speexdsp->ctx)
return UBASE_ERR_BUSY;
int quality = atoi(value);
if (quality > SPEEX_RESAMPLER_QUALITY_MAX) {
quality = SPEEX_RESAMPLER_QUALITY_MAX;
upipe_err_va(upipe, "Clamping quality to %d",
SPEEX_RESAMPLER_QUALITY_MAX);
} else if (quality < SPEEX_RESAMPLER_QUALITY_MIN) {
quality = SPEEX_RESAMPLER_QUALITY_MIN;
upipe_err_va(upipe, "Clamping quality to %d",
SPEEX_RESAMPLER_QUALITY_MIN);
}
upipe_speexdsp->quality = quality;
return UBASE_ERR_NONE;
}
default:
return UBASE_ERR_UNHANDLED;
}
}
/** @internal @This allocates a speexdsp pipe.
*
* @param mgr common management structure
* @param uprobe structure used to raise events
* @param signature signature of the pipe allocator
* @param args optional arguments
* @return pointer to upipe or NULL in case of allocation error
*/
static struct upipe *upipe_speexdsp_alloc(struct upipe_mgr *mgr,
struct uprobe *uprobe,
uint32_t signature, va_list args)
{
struct upipe *upipe = upipe_speexdsp_alloc_void(mgr, uprobe, signature,
args);
if (unlikely(upipe == NULL))
return NULL;
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
upipe_speexdsp->ctx = NULL;
upipe_speexdsp->drift_rate = (struct urational){ 0, 0 };
upipe_speexdsp->quality = SPEEX_RESAMPLER_QUALITY_MAX;
upipe_speexdsp_init_urefcount(upipe);
upipe_speexdsp_init_ubuf_mgr(upipe);
upipe_speexdsp_init_output(upipe);
upipe_speexdsp_init_flow_def(upipe);
upipe_speexdsp_init_input(upipe);
upipe_throw_ready(upipe);
return upipe;
}
/** @This frees a upipe.
*
* @param upipe description structure of the pipe
*/
static void upipe_speexdsp_free(struct upipe *upipe)
{
struct upipe_speexdsp *upipe_speexdsp = upipe_speexdsp_from_upipe(upipe);
if (likely(upipe_speexdsp->ctx))
speex_resampler_destroy(upipe_speexdsp->ctx);
upipe_throw_dead(upipe);
upipe_speexdsp_clean_input(upipe);
upipe_speexdsp_clean_output(upipe);
upipe_speexdsp_clean_flow_def(upipe);
upipe_speexdsp_clean_ubuf_mgr(upipe);
upipe_speexdsp_clean_urefcount(upipe);
upipe_speexdsp_free_void(upipe);
}
/** module manager static descriptor */
static struct upipe_mgr upipe_speexdsp_mgr = {
.refcount = NULL,
.signature = UPIPE_SPEEXDSP_SIGNATURE,
.upipe_alloc = upipe_speexdsp_alloc,
.upipe_input = upipe_speexdsp_input,
.upipe_control = upipe_speexdsp_control,
.upipe_mgr_control = NULL
};
/** @This returns the management structure for speexdsp pipes
*
* @return pointer to manager
*/
struct upipe_mgr *upipe_speexdsp_mgr_alloc(void)
{
return &upipe_speexdsp_mgr;
}
