diff options
| author | Luiz Augusto von Dentz <luiz.dentz@openbossa.org> | 2007-06-12 23:02:30 +0000 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.dentz@openbossa.org> | 2007-06-12 23:02:30 +0000 |
| commit | 35b7eb29eebf1a85fce60aa0b946ff2e04ebf684 (patch) | |
| tree | 2208c459beed5eb50d4301fbdcc26721fd9ec5a7 /audio | |
| parent | d2cbca4f4e0690c0a31ef6de1e0187e0f5bb5be9 (diff) | |
Correct block size in alsa plugin.
Diffstat (limited to 'audio')
| -rw-r--r-- | audio/pcm_bluetooth.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/audio/pcm_bluetooth.c b/audio/pcm_bluetooth.c index 491e621a..6b2167e9 100644 --- a/audio/pcm_bluetooth.c +++ b/audio/pcm_bluetooth.c @@ -204,26 +204,27 @@ static snd_pcm_sframes_t bluetooth_write(snd_pcm_ioplug_t *io, snd_pcm_sframes_t ret = 0; snd_pcm_uframes_t frames_to_read; uint8_t *buff; - int rsend; + int rsend, block_size; DBG("areas->step=%u, areas->first=%u, offset=%lu, size=%lu," "io->nonblock=%u", areas->step, areas->first, offset, size, io->nonblock); - if ((data->count + cfg.sample_size * size) <= cfg.pkt_len) + block_size = areas->step / 8; + if ((data->count + block_size * size) <= cfg.pkt_len) frames_to_read = size; else - frames_to_read = (cfg.pkt_len - data->count) / cfg.sample_size; + frames_to_read = (cfg.pkt_len - data->count) / block_size; DBG("count = %d, frames_to_read = %lu", data->count, frames_to_read); /* Ready for more data */ buff = (uint8_t *) areas->addr + (areas->first + areas->step * offset) / 8; - memcpy(data->buffer + data->count, buff, areas->step / 8 * frames_to_read); + memcpy(data->buffer + data->count, buff, block_size * frames_to_read); - if ((data->count + areas->step / 8 * frames_to_read) != cfg.pkt_len) { + if ((data->count + block_size * frames_to_read) != cfg.pkt_len) { /* Remember we have some frame in the pipe now */ - data->count += areas->step / 8 * frames_to_read; + data->count += block_size * frames_to_read; ret = frames_to_read; goto done; } @@ -235,7 +236,7 @@ static snd_pcm_sframes_t bluetooth_write(snd_pcm_ioplug_t *io, data->count = 0; /* Increment hardware transmition pointer */ - data->hw_ptr = (data->hw_ptr + frames_to_read / cfg.sample_size) + data->hw_ptr = (data->hw_ptr + cfg.pkt_len / block_size) % io->buffer_size; ret = frames_to_read; @@ -305,11 +306,13 @@ static int bluetooth_hw_constraint(snd_pcm_ioplug_t *io) if (err < 0) return err; + /* supported rate */ err = snd_pcm_ioplug_set_param_minmax(io, SND_PCM_IOPLUG_HW_RATE, cfg.rate, cfg.rate); if (err < 0) return err; + /* supported block size */ err = snd_pcm_ioplug_set_param_minmax(io, SND_PCM_IOPLUG_HW_PERIOD_BYTES, cfg.pkt_len, cfg.pkt_len); if (err < 0) |