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#include "captions-handler.hpp"
captions_handler::captions_handler(
captions_cb callback,
enum audio_format format,
uint32_t sample_rate)
: cb(callback)
{
if (!reset_resampler(format, sample_rate))
throw CAPTIONS_ERROR_GENERIC_FAIL;
}
bool captions_handler::reset_resampler(
enum audio_format format,
uint32_t sample_rate)
try {
obs_audio_info ai;
if (!obs_get_audio_info(&ai))
throw std::string("Failed to get OBS audio info");
resample_info src = {
ai.samples_per_sec,
AUDIO_FORMAT_FLOAT_PLANAR,
ai.speakers
};
resample_info dst = {
sample_rate,
format,
SPEAKERS_MONO
};
if (!resampler.reset(dst, src))
throw std::string("Failed to create audio resampler");
return true;
} catch (std::string text) {
blog(LOG_WARNING, "%s: %s", __FUNCTION__, text.c_str());
return false;
}
void captions_handler::push_audio(const audio_data *audio)
{
uint8_t *out[MAX_AV_PLANES];
uint32_t frames;
uint64_t ts_offset;
bool success;
success = audio_resampler_resample(resampler,
out, &frames, &ts_offset,
(const uint8_t *const *)audio->data, audio->frames);
if (success)
pcm_data(out[0], frames);
}
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