Exemplo n.º 1
0
static bool audio_line_place_data(struct audio_line *line,
		const struct audio_data *data)
{
	int64_t pos;
	uint64_t timestamp = smooth_ts(line, data->timestamp);

	pos = ts_diff_bytes(line->audio, timestamp, line->base_timestamp);

	if (pos < 0) {
		return false;
	}

	line->next_ts_min =
		timestamp + conv_frames_to_time(line->audio, data->frames);

#ifdef DEBUG_AUDIO
	blog(LOG_DEBUG, "data->timestamp: %llu, line->base_timestamp: %llu, "
			"pos: %lu, bytes: %lu, buf size: %lu",
			timestamp, line->base_timestamp, pos,
			data->frames * line->audio->block_size,
			line->buffers[0].size);
#endif

	audio_line_place_data_pos(line, data, (size_t)pos);
	return true;
}
Exemplo n.º 2
0
/* this only really happens with the very initial data insertion.  can be
 * ignored safely. */
static inline void clear_excess_audio_data(struct audio_line *line,
		uint64_t prev_time)
{
	size_t size = (size_t)ts_diff_bytes(line->audio, prev_time,
			line->base_timestamp);

	/*blog(LOG_DEBUG, "Excess audio data for audio line '%s', somehow "
	                "audio data went back in time by %"PRIu32" bytes.  "
	                "prev_time: %"PRIu64", line->base_timestamp: %"PRIu64,
	                line->name, (uint32_t)size,
	                prev_time, line->base_timestamp);*/

	if (!line->audio_getting_cut_off) {
		blog(LOG_WARNING, "Audio line '%s' audio data currently "
		                  "getting cut off.  This could be due to a "
		                  "negative sync offset that's larger than "
		                  "the current audio buffering time.",
		                  line->name);
		line->audio_getting_cut_off = true;
	}

	for (size_t i = 0; i < line->audio->planes; i++) {
		size_t clear_size = (size < line->buffers[i].size) ?
			size : line->buffers[i].size;

		circlebuf_pop_front(&line->buffers[i], NULL, clear_size);
	}
}
Exemplo n.º 3
0
static void audio_line_place_data(struct audio_line *line,
		const struct audio_data *data)
{
	size_t pos = ts_diff_bytes(line->audio, data->timestamp,
			line->base_timestamp);

#ifdef DEBUG_AUDIO
	blog(LOG_DEBUG, "data->timestamp: %llu, line->base_timestamp: %llu, "
			"pos: %lu, bytes: %lu, buf size: %lu",
			data->timestamp, line->base_timestamp, pos,
			data->frames * line->audio->block_size,
			line->buffers[0].size);
#endif

	audio_line_place_data_pos(line, data, pos);
}
Exemplo n.º 4
0
/* this only really happens with the very initial data insertion.  can be
 * ignored safely. */
static inline void clear_excess_audio_data(struct audio_line *line,
		uint64_t prev_time)
{
	size_t size = ts_diff_bytes(line->audio, prev_time,
			line->base_timestamp);

	/*blog(LOG_DEBUG, "Excess audio data for audio line '%s', somehow "
	                "audio data went back in time by %"PRIu32" bytes.  "
	                "prev_time: %"PRIu64", line->base_timestamp: %"PRIu64,
	                line->name, (uint32_t)size,
	                prev_time, line->base_timestamp);*/

	for (size_t i = 0; i < line->audio->planes; i++) {
		size_t clear_size = (size < line->buffers[i].size) ?
			size : line->buffers[i].size;

		circlebuf_pop_front(&line->buffers[i], NULL, clear_size);
	}
}
Exemplo n.º 5
0
static inline bool mix_audio_line(struct audio_output *audio,
		struct audio_line *line, size_t size, uint64_t timestamp)
{
	size_t time_offset = (size_t)ts_diff_bytes(audio,
			line->base_timestamp, timestamp);
	if (time_offset > size)
		return false;

	size -= time_offset;

#ifdef DEBUG_AUDIO
	blog(LOG_DEBUG, "shaved off %lu bytes", size);
#endif

	for (size_t i = 0; i < audio->planes; i++) {
		size_t pop_size = min_size(size, line->buffers[i].size);

		mix_float(audio, line, pop_size, time_offset, i);
	}

	return true;
}