diff options
Diffstat (limited to 'src/modules/alsa')
| -rw-r--r-- | src/modules/alsa/alsa-sink.c | 574 | ||||
| -rw-r--r-- | src/modules/alsa/alsa-source.c | 532 | ||||
| -rw-r--r-- | src/modules/alsa/alsa-util.c | 185 | ||||
| -rw-r--r-- | src/modules/alsa/alsa-util.h | 8 | ||||
| -rw-r--r-- | src/modules/alsa/module-alsa-card.c | 10 |
5 files changed, 736 insertions, 573 deletions
diff --git a/src/modules/alsa/alsa-sink.c b/src/modules/alsa/alsa-sink.c index c56614c8..239a9d78 100644 --- a/src/modules/alsa/alsa-sink.c +++ b/src/modules/alsa/alsa-sink.c @@ -35,6 +35,7 @@ #include <pulse/xmalloc.h> #include <pulse/util.h> #include <pulse/timeval.h> +#include <pulse/i18n.h> #include <pulsecore/core.h> #include <pulsecore/module.h> @@ -55,11 +56,13 @@ #include "alsa-util.h" #include "alsa-sink.h" +/* #define DEBUG_TIMING */ + #define DEFAULT_DEVICE "default" #define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC) /* 2s */ #define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC) /* 20ms */ -#define TSCHED_MIN_SLEEP_USEC (3*PA_USEC_PER_MSEC) /* 3ms */ -#define TSCHED_MIN_WAKEUP_USEC (3*PA_USEC_PER_MSEC) /* 3ms */ +#define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */ +#define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms */ struct userdata { pa_core *core; @@ -77,17 +80,17 @@ struct userdata { snd_mixer_elem_t *mixer_elem; long hw_volume_max, hw_volume_min; long hw_dB_max, hw_dB_min; - pa_bool_t hw_dB_supported; - pa_bool_t mixer_seperate_channels; + pa_bool_t hw_dB_supported:1; + pa_bool_t mixer_seperate_channels:1; pa_cvolume hardware_volume; - size_t frame_size, fragment_size, hwbuf_size, tsched_watermark; + size_t frame_size, fragment_size, hwbuf_size, tsched_watermark, hwbuf_unused, min_sleep, min_wakeup; unsigned nfragments; pa_memchunk memchunk; char *device_name; - pa_bool_t use_mmap, use_tsched; + pa_bool_t use_mmap:1, use_tsched:1; pa_bool_t first, after_rewind; @@ -96,39 +99,70 @@ struct userdata { snd_mixer_selem_channel_id_t mixer_map[SND_MIXER_SCHN_LAST]; pa_smoother *smoother; - int64_t frame_index; + uint64_t write_count; uint64_t since_start; - - snd_pcm_sframes_t hwbuf_unused_frames; }; static void userdata_free(struct userdata *u); +static void fix_min_sleep_wakeup(struct userdata *u) { + size_t max_use, max_use_2; + + pa_assert(u); + + max_use = u->hwbuf_size - u->hwbuf_unused; + max_use_2 = pa_frame_align(max_use/2, &u->sink->sample_spec); + + u->min_sleep = pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC, &u->sink->sample_spec); + u->min_sleep = PA_CLAMP(u->min_sleep, u->frame_size, max_use_2); + + u->min_wakeup = pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC, &u->sink->sample_spec); + u->min_wakeup = PA_CLAMP(u->min_wakeup, u->frame_size, max_use_2); +} + static void fix_tsched_watermark(struct userdata *u) { size_t max_use; - size_t min_sleep, min_wakeup; pa_assert(u); - max_use = u->hwbuf_size - (size_t) u->hwbuf_unused_frames * u->frame_size; + max_use = u->hwbuf_size - u->hwbuf_unused; + + if (u->tsched_watermark > max_use - u->min_sleep) + u->tsched_watermark = max_use - u->min_sleep; + + if (u->tsched_watermark < u->min_wakeup) + u->tsched_watermark = u->min_wakeup; +} + +static void adjust_after_underrun(struct userdata *u) { + size_t old_watermark; + pa_usec_t old_min_latency, new_min_latency; + + pa_assert(u); + + /* First, just try to increase the watermark */ + old_watermark = u->tsched_watermark; + u->tsched_watermark *= 2; + fix_tsched_watermark(u); - min_sleep = pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC, &u->sink->sample_spec); - min_wakeup = pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC, &u->sink->sample_spec); + if (old_watermark != u->tsched_watermark) { + pa_log_notice("Increasing wakeup watermark to %0.2f ms", + (double) pa_bytes_to_usec(u->tsched_watermark, &u->sink->sample_spec) / PA_USEC_PER_MSEC); + return; + } - if (min_sleep > max_use/2) - min_sleep = pa_frame_align(max_use/2, &u->sink->sample_spec); - if (min_sleep < u->frame_size) - min_sleep = u->frame_size; + /* Hmm, we cannot increase the watermark any further, hence let's raise the latency */ + old_min_latency = u->sink->thread_info.min_latency; + new_min_latency = PA_MIN(old_min_latency * 2, u->sink->thread_info.max_latency); - if (min_wakeup > max_use/2) - min_wakeup = pa_frame_align(max_use/2, &u->sink->sample_spec); - if (min_wakeup < u->frame_size) - min_wakeup = u->frame_size; + if (old_min_latency != new_min_latency) { + pa_log_notice("Increasing minimal latency to %0.2f ms", + (double) new_min_latency / PA_USEC_PER_MSEC); - if (u->tsched_watermark > max_use-min_sleep) - u->tsched_watermark = max_use-min_sleep; + pa_sink_update_latency_range(u->sink, new_min_latency, u->sink->thread_info.max_latency); + return; + } - if (u->tsched_watermark < min_wakeup) - u->tsched_watermark = min_wakeup; + /* When we reach this we're officialy fucked! */ } static void hw_sleep_time(struct userdata *u, pa_usec_t *sleep_usec, pa_usec_t*process_usec) { @@ -144,17 +178,20 @@ static void hw_sleep_time(struct userdata *u, pa_usec_t *sleep_usec, pa_usec_t*p if (usec == (pa_usec_t) -1) usec = pa_bytes_to_usec(u->hwbuf_size, &u->sink->sample_spec); -/* pa_log_debug("hw buffer time: %u ms", (unsigned) (usec / PA_USEC_PER_MSEC)); */ - wm = pa_bytes_to_usec(u->tsched_watermark, &u->sink->sample_spec); - if (usec >= wm) { - *sleep_usec = usec - wm; - *process_usec = wm; - } else - *process_usec = *sleep_usec = usec / 2; + if (wm > usec) + wm = usec/2; + + *sleep_usec = usec - wm; + *process_usec = wm; -/* pa_log_debug("after watermark: %u ms", (unsigned) (*sleep_usec / PA_USEC_PER_MSEC)); */ +#ifdef DEBUG_TIMING + pa_log_debug("Buffer time: %lu ms; Sleep time: %lu ms; Process time: %lu ms", + (unsigned long) (usec / PA_USEC_PER_MSEC), + (unsigned long) (*sleep_usec / PA_USEC_PER_MSEC), + (unsigned long) (*process_usec / PA_USEC_PER_MSEC)); +#endif } static int try_recover(struct userdata *u, const char *call, int err) { @@ -169,40 +206,45 @@ static int try_recover(struct userdata *u, const char *call, int err) { if (err == -EPIPE) pa_log_debug("%s: Buffer underrun!", call); - if ((err = snd_pcm_recover(u->pcm_handle, err, 1)) == 0) { - u->first = TRUE; - u->since_start = 0; - return 0; + if ((err = snd_pcm_recover(u->pcm_handle, err, 1)) < 0) { + pa_log("%s: %s", call, snd_strerror(err)); + return -1; } - pa_log("%s: %s", call, snd_strerror(err)); - return -1; + u->first = TRUE; + u->since_start = 0; + return 0; } -static size_t check_left_to_play(struct userdata *u, snd_pcm_sframes_t n) { +static size_t check_left_to_play(struct userdata *u, size_t n_bytes) { size_t left_to_play; - if ((size_t) n*u->frame_size < u->hwbuf_size) - left_to_play = u->hwbuf_size - ((size_t) n*u->frame_size); - else - left_to_play = 0; + /* We use <= instead of < for this check here because an underrun + * only happens after the last sample was processed, not already when + * it is removed from the buffer. This is particularly important + * when block transfer is used. */ - if (left_to_play > 0) { -/* pa_log_debug("%0.2f ms left to play", (double) pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) / PA_USEC_PER_MSEC); */ - } else if (!u->first && !u->after_rewind) { + if (n_bytes <= u->hwbuf_size) { + left_to_play = u->hwbuf_size - n_bytes; - if (pa_log_ratelimit()) - pa_log_info("Underrun!"); +#ifdef DEBUG_TIMING + pa_log_debug("%0.2f ms left to play", (double) pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) / PA_USEC_PER_MSEC); +#endif - if (u->use_tsched) { - size_t old_watermark = u->tsched_watermark; + } else { + left_to_play = 0; - u->tsched_watermark *= 2; - fix_tsched_watermark(u); +#ifdef DEBUG_TIMING + PA_DEBUG_TRAP; +#endif + + if (!u->first && !u->after_rewind) { - if (old_watermark != u->tsched_watermark) - pa_log_notice("Increasing wakeup watermark to %0.2f ms", - (double) pa_bytes_to_usec(u->tsched_watermark, &u->sink->sample_spec) / PA_USEC_PER_MSEC); + if (pa_log_ratelimit()) + pa_log_info("Underrun!"); + + if (u->use_tsched) + adjust_after_underrun(u); } } @@ -210,7 +252,7 @@ static size_t check_left_to_play(struct userdata *u, snd_pcm_sframes_t n) { } static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) { - int work_done = 0; + pa_bool_t work_done = TRUE; pa_usec_t max_sleep_usec = 0, process_usec = 0; size_t left_to_play; @@ -222,22 +264,27 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle for (;;) { snd_pcm_sframes_t n; + size_t n_bytes; int r; - snd_pcm_hwsync(u->pcm_handle); - /* First we determine how many samples are missing to fill the * buffer up to 100% */ - if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->sink->sample_spec)) < 0)) { + if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->sink->sample_spec)) < 0)) { - if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0) + if ((r = try_recover(u, "snd_pcm_avail", (int) n)) == 0) continue; return r; } - left_to_play = check_left_to_play(u, n); + n_bytes = (size_t) n * u->frame_size; + +#ifdef DEBUG_TIMING + pa_log_debug("avail: %lu", (unsigned long) n_bytes); +#endif + + left_to_play = check_left_to_play(u, n_bytes); if (u->use_tsched) @@ -248,33 +295,42 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle * a single hw buffer length. */ if (!polled && - pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) > process_usec+max_sleep_usec/2) + pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) > process_usec+max_sleep_usec/2) { +#ifdef DEBUG_TIMING + pa_log_debug("Not filling up, because too early."); +#endif break; + } - if (PA_UNLIKELY(n <= u->hwbuf_unused_frames)) { + if (PA_UNLIKELY(n_bytes <= u->hwbuf_unused)) { if (polled && pa_log_ratelimit()) - pa_log("ALSA woke us up to write new data to the device, but there was actually nothing to write! " - "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " - "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail_update() returned 0."); + pa_log(_("ALSA woke us up to write new data to the device, but there was actually nothing to write! " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " + "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail_update() returned 0.")); +#ifdef DEBUG_TIMING + pa_log_debug("Not filling up, because not necessary."); +#endif break; } - n -= u->hwbuf_unused_frames; - + n_bytes -= u->hwbuf_unused; polled = FALSE; -/* pa_log_debug("Filling up"); */ +#ifdef DEBUG_TIMING + pa_log_debug("Filling up"); +#endif for (;;) { pa_memchunk chunk; void *p; int err; const snd_pcm_channel_area_t *areas; - snd_pcm_uframes_t offset, frames = (snd_pcm_uframes_t) n; + snd_pcm_uframes_t offset, frames; snd_pcm_sframes_t sframes; + frames = (snd_pcm_uframes_t) (n_bytes / u->frame_size); /* pa_log_debug("%lu frames to write", (unsigned long) frames); */ if (PA_UNLIKELY((err = pa_alsa_safe_mmap_begin(u->pcm_handle, &areas, &offset, &frames, u->hwbuf_size, &u->sink->sample_spec)) < 0)) { @@ -304,9 +360,6 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle chunk.index = 0; pa_sink_render_into_full(u->sink, &chunk); - - /* FIXME: Maybe we can do something to keep this memory block - * a little bit longer around? */ pa_memblock_unref_fixed(chunk.memblock); if (PA_UNLIKELY((sframes = snd_pcm_mmap_commit(u->pcm_handle, offset, frames)) < 0)) { @@ -317,26 +370,28 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle return r; } - work_done = 1; + work_done = TRUE; - u->frame_index += (int64_t) frames; + u->write_count += frames * u->frame_size; u->since_start += frames * u->frame_size; -/* pa_log_debug("wrote %lu frames", (unsigned long) frames); */ +#ifdef DEBUG_TIMING + pa_log_debug("Wrote %lu bytes", (unsigned long) (frames * u->frame_size)); +#endif - if (frames >= (snd_pcm_uframes_t) n) + if ((size_t) frames * u->frame_size >= n_bytes) break; - n -= (snd_pcm_sframes_t) frames; + n_bytes -= (size_t) frames * u->frame_size; } } *sleep_usec = pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) - process_usec; - return work_done; + return work_done ? 1 : 0; } static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) { - int work_done = 0; + pa_bool_t work_done = FALSE; pa_usec_t max_sleep_usec = 0, process_usec = 0; size_t left_to_play; @@ -348,19 +403,19 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle for (;;) { snd_pcm_sframes_t n; + size_t n_bytes; int r; - snd_pcm_hwsync(u->pcm_handle); - - if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->sink->sample_spec)) < 0)) { + if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->sink->sample_spec)) < 0)) { - if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0) + if ((r = try_recover(u, "snd_pcm_avail", (int) n)) == 0) continue; return r; } - left_to_play = check_left_to_play(u, n); + n_bytes = (size_t) n * u->frame_size; + left_to_play = check_left_to_play(u, n_bytes); if (u->use_tsched) @@ -374,18 +429,17 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) > process_usec+max_sleep_usec/2) break; - if (PA_UNLIKELY(n <= u->hwbuf_unused_frames)) { + if (PA_UNLIKELY(n_bytes <= u->hwbuf_unused)) { if (polled && pa_log_ratelimit()) - pa_log("ALSA woke us up to write new data to the device, but there was actually nothing to write! " - "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " - "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail_update() returned 0."); + pa_log(_("ALSA woke us up to write new data to the device, but there was actually nothing to write! " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " + "We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail_update() returned 0.")); break; } - n -= u->hwbuf_unused_frames; - + n_bytes -= u->hwbuf_unused; polled = FALSE; for (;;) { @@ -395,14 +449,14 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle /* pa_log_debug("%lu frames to write", (unsigned long) frames); */ if (u->memchunk.length <= 0) - pa_sink_render(u->sink, (size_t) n * u->frame_size, &u->memchunk); + pa_sink_render(u->sink, n_bytes, &u->memchunk); pa_assert(u->memchunk.length > 0); frames = (snd_pcm_sframes_t) (u->memchunk.length / u->frame_size); - if (frames > n) - frames = n; + if (frames > (snd_pcm_sframes_t) (n_bytes/u->frame_size)) + frames = (snd_pcm_sframes_t) (n_bytes/u->frame_size); p = pa_memblock_acquire(u->memchunk.memblock); frames = snd_pcm_writei(u->pcm_handle, (const uint8_t*) p + u->memchunk.index, (snd_pcm_uframes_t) frames); @@ -426,30 +480,29 @@ static int unix_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle pa_memchunk_reset(&u->memchunk); } - work_done = 1; + work_done = TRUE; - u->frame_index += frames; - u->since_start += (size_t) frames * u->frame_size; + u->write_count += frames * u->frame_size; + u->since_start += frames * u->frame_size; /* pa_log_debug("wrote %lu frames", (unsigned long) frames); */ - if (frames >= n) + if ((size_t) frames * u->frame_size >= n_bytes) break; - n -= frames; + n_bytes -= (size_t) frames * u->frame_size; } } *sleep_usec = pa_bytes_to_usec(left_to_play, &u->sink->sample_spec) - process_usec; - return work_done; + return work_done ? 1 : 0; } static void update_smoother(struct userdata *u) { - snd_pcm_sframes_t delay = 0; - int64_t frames; + snd_pcm_sframes_t delay = 0; + int64_t position; int err; - pa_usec_t now1, now2; -/* struct timeval timestamp; */ + pa_usec_t now1 = 0, now2; snd_pcm_status_t *status; snd_pcm_status_alloca(&status); @@ -459,36 +512,35 @@ static void update_smoother(struct userdata *u) { /* Let's update the time smoother */ - snd_pcm_hwsync(u->pcm_handle); - snd_pcm_avail_update(u->pcm_handle); - -/* if (PA_UNLIKELY((err = snd_pcm_status(u->pcm_handle, status)) < 0)) { */ -/* pa_log("Failed to query DSP status data: %s", snd_strerror(err)); */ -/* return; */ -/* } */ - -/* delay = snd_pcm_status_get_delay(status); */ - if (PA_UNLIKELY((err = snd_pcm_delay(u->pcm_handle, &delay)) < 0)) { - pa_log("Failed to query DSP status data: %s", snd_strerror(err)); + pa_log_warn("Failed to query DSP status data: %s", snd_strerror(err)); return; } - frames = u->frame_index - delay; + if (PA_UNLIKELY((err = snd_pcm_status(u->pcm_handle, status)) < 0)) + pa_log_warn("Failed to get timestamp: %s", snd_strerror(err)); + else { + snd_htimestamp_t htstamp = { 0, 0 }; + snd_pcm_status_get_htstamp(status, &htstamp); + now1 = pa_timespec_load(&htstamp); + } -/* pa_log_debug("frame_index = %llu, delay = %llu, p = %llu", (unsigned long long) u->frame_index, (unsigned long long) delay, (unsigned long long) frames); */ + position = (int64_t) u->write_count - ((int64_t) delay * (int64_t) u->frame_size); -/* snd_pcm_status_get_tstamp(status, ×tamp); */ -/* pa_rtclock_from_wallclock(×tamp); */ -/* now1 = pa_timeval_load(×tamp); */ + if (PA_UNLIKELY(position < 0)) + position = 0; + + /* Hmm, if the timestamp is 0, then it wasn't set and we take the current time */ + if (now1 <= 0) + now1 = pa_rtclock_usec(); + + now2 = pa_bytes_to_usec((uint64_t) position, &u->sink->sample_spec); - now1 = pa_rtclock_usec(); - now2 = pa_bytes_to_usec((uint64_t) frames * u->frame_size, &u->sink->sample_spec); pa_smoother_put(u->smoother, now1, now2); } static pa_usec_t sink_get_latency(struct userdata *u) { - pa_usec_t r = 0; + pa_usec_t r; int64_t delay; pa_usec_t now1, now2; @@ -497,10 +549,9 @@ static pa_usec_t sink_get_latency(struct userdata *u) { now1 = pa_rtclock_usec(); now2 = pa_smoother_get(u->smoother, now1); - delay = (int64_t) pa_bytes_to_usec((uint64_t) u->frame_index * u->frame_size, &u->sink->sample_spec) - (int64_t) now2; + delay = (int64_t) pa_bytes_to_usec(u->write_count, &u->sink->sample_spec) - (int64_t) now2; - if (delay > 0) - r = (pa_usec_t) delay; + r = delay >= 0 ? (pa_usec_t) delay : 0; if (u->memchunk.memblock) r += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec); @@ -549,7 +600,7 @@ static int update_sw_params(struct userdata *u) { pa_assert(u); /* Use the full buffer if noone asked us for anything specific */ - u->hwbuf_unused_frames = 0; + u->hwbuf_unused = 0; if (u->use_tsched) { pa_usec_t latency; @@ -557,7 +608,7 @@ static int update_sw_params(struct userdata *u) { if ((latency = pa_sink_get_requested_latency_within_thread(u->sink)) != (pa_usec_t) -1) { size_t b; - pa_log_debug("latency set to %0.2fms", (double) latency / PA_USEC_PER_MSEC); + pa_log_debug("Latency set to %0.2fms", (double) latency / PA_USEC_PER_MSEC); b = pa_usec_to_bytes(latency, &u->sink->sample_spec); @@ -566,18 +617,17 @@ static int update_sw_params(struct userdata *u) { if (PA_UNLIKELY(b < u->frame_size)) b = u->frame_size; - u->hwbuf_unused_frames = (snd_pcm_sframes_t) - (PA_LIKELY(b < u->hwbuf_size) ? - ((u->hwbuf_size - b) / u->frame_size) : 0); + u->hwbuf_unused = PA_LIKELY(b < u->hwbuf_size) ? (u->hwbuf_size - b) : 0; } + fix_min_sleep_wakeup(u); fix_tsched_watermark(u); } - pa_log_debug("hwbuf_unused_frames=%lu", (unsigned long) u->hwbuf_unused_frames); + pa_log_debug("hwbuf_unused=%lu", (unsigned long) u->hwbuf_unused); /* We need at last one frame in the used part of the buffer */ - avail_min = (snd_pcm_uframes_t) u->hwbuf_unused_frames + 1; + avail_min = (snd_pcm_uframes_t) u->hwbuf_unused / u->frame_size + 1; if (u->use_tsched) { pa_usec_t sleep_usec, process_usec; @@ -593,7 +643,7 @@ static int update_sw_params(struct userdata *u) { return err; } - pa_sink_set_max_request(u->sink, u->hwbuf_size - (size_t) u->hwbuf_unused_frames * u->frame_size); + pa_sink_set_max_request(u->sink, u->hwbuf_size - u->hwbuf_unused); return 0; } @@ -654,8 +704,6 @@ static int unsuspend(struct userdata *u) { if (build_pollfd(u) < 0) goto fail; - /* FIXME: We need to reload the volume somehow */ - u->first = TRUE; u->since_start = 0; @@ -980,13 +1028,13 @@ static void sink_set_mute_cb(pa_sink *s) { static void sink_update_requested_latency_cb(pa_sink *s) { struct userdata *u = s->userdata; - snd_pcm_sframes_t before; + size_t before; pa_assert(u); if (!u->pcm_handle) return; - before = u->hwbuf_unused_frames; + before = u->hwbuf_unused; update_sw_params(u); /* Let's check whether we now use only a smaller part of the @@ -995,7 +1043,7 @@ static void sink_update_requested_latency_cb(pa_sink *s) { current fill level. Thus, let's do a full rewind once, to clear things up. */ - if (u->hwbuf_unused_frames > before) { + if (u->hwbuf_unused > before) { pa_log_debug("Requesting rewind due to latency change."); pa_sink_request_rewind(s, (size_t) -1); } @@ -1050,7 +1098,7 @@ static int process_rewind(struct userdata *u) { if (rewind_nbytes <= 0) pa_log_info("Tried rewind, but was apparently not possible."); else { - u->frame_index -= out_frames; + u->write_count -= out_frames * u->frame_size; pa_log_debug("Rewound %lu bytes.", (unsigned long) rewind_nbytes); pa_sink_process_rewind(u->sink, rewind_nbytes); @@ -1085,7 +1133,9 @@ static void thread_func(void *userdata) { for (;;) { int ret; -/* pa_log_debug("loop"); */ +#ifdef DEBUG_TIMING + pa_log_debug("Loop"); +#endif /* Render some data and write it to the dsp */ if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) { @@ -1131,7 +1181,7 @@ static void thread_func(void *userdata) { * we have filled the buffer at least once * completely.*/ - /*pa_log_debug("Cutting sleep time for the initial iterations by half.");*/ + pa_log_debug("Cutting sleep time for the initial iterations by half."); sleep_usec /= 2; } @@ -1177,16 +1227,15 @@ static void thread_func(void *userdata) { goto fail; } - if (revents & (POLLIN|POLLERR|POLLNVAL|POLLHUP|POLLPRI)) { + if (revents & ~POLLOUT) { if (pa_alsa_recover_from_poll(u->pcm_handle, revents) < 0) goto fail; u->first = TRUE; u->since_start = 0; - } + } else if (revents && u->use_tsched && pa_log_ratelimit()) + pa_log_debug("Wakeup from ALSA!"); - if (revents && u->use_tsched && pa_log_ratelimit()) - pa_log_debug("Wakeup from ALSA!%s%s", (revents & POLLIN) ? " INPUT" : "", (revents & POLLOUT) ? " OUTPUT" : ""); } else revents = 0; } @@ -1227,6 +1276,91 @@ static void set_sink_name(pa_sink_new_data *data, pa_modargs *ma, const char *de pa_xfree(t); } +static int setup_mixer(struct userdata *u, pa_bool_t ignore_dB) { + pa_assert(u); + + if (!u->mixer_handle) + return 0; + + pa_assert(u->mixer_elem); + + if (snd_mixer_selem_has_playback_volume(u->mixer_elem)) { + pa_bool_t suitable = FALSE; + + if (snd_mixer_selem_get_playback_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) + pa_log_info("Failed to get volume range. Falling back to software volume control."); + else if (u->hw_volume_min >= u->hw_volume_max) + pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u->hw_volume_min, u->hw_volume_max); + else { + pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max); + suitable = TRUE; + } + + if (suitable) { + if (ignore_dB || snd_mixer_selem_get_playback_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0) + pa_log_info("Mixer doesn't support dB information or data is ignored."); + else { +#ifdef HAVE_VALGRIND_MEMCHECK_H + VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min)); + VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max)); +#endif + + if (u->hw_dB_min >= u->hw_dB_max) + pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); + else { + pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); + u->hw_dB_supported = TRUE; + + if (u->hw_dB_max > 0) { + u->sink->base_volume = pa_sw_volume_from_dB(- (double) u->hw_dB_max/100.0); + pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u->sink->base_volume)); + } else + pa_log_info("No particular base volume set, fixing to 0 dB"); + } + } + + if (!u->hw_dB_supported && + u->hw_volume_max - u->hw_volume_min < 3) { + + pa_log_info("Device doesn't do dB volume and has less than 4 volume levels. Falling back to software volume control."); + suitable = FALSE; + } + } + + if (suitable) { + u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &u->sink->channel_map, u->mixer_map, TRUE) >= 0; + + u->sink->get_volume = sink_get_volume_cb; + u->sink->set_volume = sink_set_volume_cb; + u->sink->flags |= PA_SINK_HW_VOLUME_CTRL | (u->hw_dB_supported ? PA_SINK_DECIBEL_VOLUME : 0); + pa_log_info("Using hardware volume control. Hardware dB scale %s.", u->hw_dB_supported ? "supported" : "not supported"); + + if (!u->hw_dB_supported) + u->sink->n_volume_steps = u->hw_volume_max - u->hw_volume_min + 1; + } else + pa_log_info("Using software volume control."); + } + + if (snd_mixer_selem_has_playback_switch(u->mixer_elem)) { + u->sink->get_mute = sink_get_mute_cb; + u->sink->set_mute = sink_set_mute_cb; + u->sink->flags |= PA_SINK_HW_MUTE_CTRL; + } else + pa_log_info("Using software mute control."); + + u->mixer_fdl = pa_alsa_fdlist_new(); + + if (pa_alsa_fdlist_set_mixer(u->mixer_fdl, u->mixer_handle, u->core->mainloop) < 0) { + pa_log("Failed to initialize file descriptor monitoring"); + return -1; + } + + snd_mixer_elem_set_callback(u->mixer_elem, mixer_callback); + snd_mixer_elem_set_callback_private(u->mixer_elem, u); + + return 0; +} + pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_card *card, const pa_alsa_profile_info *profile) { struct userdata *u = NULL; @@ -1236,14 +1370,10 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca uint32_t nfrags, hwbuf_size, frag_size, tsched_size, tsched_watermark; snd_pcm_uframes_t period_frames, tsched_frames; size_t frame_size; - snd_pcm_info_t *pcm_info = NULL; - int err; pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE; pa_usec_t usec; pa_sink_new_data data; - snd_pcm_info_alloca(&pcm_info); - pa_assert(m); pa_assert(ma); @@ -1300,11 +1430,8 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca u->use_mmap = use_mmap; u->use_tsched = use_tsched; u->first = TRUE; - u->since_start = 0; - u->after_rewind = FALSE; u->rtpoll = pa_rtpoll_new(); pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll); - u->alsa_rtpoll_item = NULL; u->smoother = pa_smoother_new(DEFAULT_TSCHED_BUFFER_USEC*2, DEFAULT_TSCHED_BUFFER_USEC*2, TRUE, 5); usec = pa_rtclock_usec(); @@ -1368,7 +1495,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca } if (use_tsched && (!b || !d)) { - pa_log_info("Cannot enabled timer-based scheduling, falling back to sound IRQ scheduling."); + pa_log_info("Cannot enable timer-based scheduling, falling back to sound IRQ scheduling."); u->use_tsched = use_tsched = FALSE; } @@ -1378,51 +1505,10 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca if (u->use_tsched) pa_log_info("Successfully enabled timer-based scheduling mode."); - if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) { - pa_log("Error fetching PCM info: %s", snd_strerror(err)); - goto fail; - } - /* ALSA might tweak the sample spec, so recalculate the frame size */ frame_size = pa_frame_size(&ss); - if ((err = snd_mixer_open(&u->mixer_handle, 0)) < 0) - pa_log_warn("Error opening mixer: %s", snd_strerror(err)); - else { - pa_bool_t found = FALSE; - - if (pa_alsa_prepare_mixer(u->mixer_handle, u->device_name) >= 0) - found = TRUE; - else { - snd_pcm_info_t *info; - - snd_pcm_info_alloca(&info); - - if (snd_pcm_info(u->pcm_handle, info) >= 0) { - char *md; - int card_idx; - - if ((card_idx = snd_pcm_info_get_card(info)) >= 0) { - - md = pa_sprintf_malloc("hw:%i", card_idx); - - if (strcmp(u->device_name, md)) - if (pa_alsa_prepare_mixer(u->mixer_handle, md) >= 0) - found = TRUE; - pa_xfree(md); - } - } - } - - if (found) - if (!(u->mixer_elem = pa_alsa_find_elem(u->mixer_handle, "Master", "PCM", TRUE))) - found = FALSE; - - if (!found) { - snd_mixer_close(u->mixer_handle); - u->mixer_handle = NULL; - } - } + pa_alsa_find_mixer_and_elem(u->pcm_handle, &u->mixer_handle, &u->mixer_elem); pa_sink_new_data_init(&data); data.driver = driver; @@ -1432,7 +1518,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca pa_sink_new_data_set_sample_spec(&data, &ss); pa_sink_new_data_set_channel_map(&data, &map); - pa_alsa_init_proplist_pcm(m->core, data.proplist, pcm_info); + pa_alsa_init_proplist_pcm(m->core, data.proplist, u->pcm_handle); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_name); pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (period_frames * frame_size * nfrags)); pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (period_frames * frame_size)); @@ -1462,17 +1548,13 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca u->fragment_size = frag_size = (uint32_t) (period_frames * frame_size); u->nfragments = nfrags; u->hwbuf_size = u->fragment_size * nfrags; - u->hwbuf_unused_frames = 0; u->tsched_watermark = tsched_watermark; - u->frame_index = 0; - u->hw_dB_supported = FALSE; - u->hw_dB_min = u->hw_dB_max = 0; - u->hw_volume_min = u->hw_volume_max = 0; - u->mixer_seperate_channels = FALSE; pa_cvolume_mute(&u->hardware_volume, u->sink->sample_spec.channels); - if (use_tsched) + if (use_tsched) { + fix_min_sleep_wakeup(u); fix_tsched_watermark(u); + } u->sink->thread_info.max_rewind = use_tsched ? u->hwbuf_size : 0; u->sink->thread_info.max_request = u->hwbuf_size; @@ -1492,86 +1574,8 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca if (update_sw_params(u) < 0) goto fail; - pa_memchunk_reset(&u->memchunk); - - if (u->mixer_handle) { - pa_assert(u->mixer_elem); - - if (snd_mixer_selem_has_playback_volume(u->mixer_elem)) { - pa_bool_t suitable = FALSE; - - if (snd_mixer_selem_get_playback_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) - pa_log_info("Failed to get volume range. Falling back to software volume control."); - else if (u->hw_volume_min >= u->hw_volume_max) - pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u->hw_volume_min, u->hw_volume_max); - else { - pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max); - suitable = TRUE; - } - - if (suitable) { - if (ignore_dB || snd_mixer_selem_get_playback_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0) - pa_log_info("Mixer doesn't support dB information or data is ignored."); - else { -#ifdef HAVE_VALGRIND_MEMCHECK_H - VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min)); - VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max)); -#endif - - if (u->hw_dB_min >= u->hw_dB_max) - pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); - else { - pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); - u->hw_dB_supported = TRUE; - - if (u->hw_dB_max > 0) { - u->sink->base_volume = pa_sw_volume_from_dB(- (double) u->hw_dB_max/100.0); - pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u->sink->base_volume)); - } else - pa_log_info("No particular base volume set, fixing to 0 dB"); - } - } - - if (!u->hw_dB_supported && - u->hw_volume_max - u->hw_volume_min < 3) { - - pa_log_info("Device doesn't do dB volume and has less than 4 volume levels. Falling back to software volume control."); - suitable = FALSE; - } - } - - if (suitable) { - u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, TRUE) >= 0; - - u->sink->get_volume = sink_get_volume_cb; - u->sink->set_volume = sink_set_volume_cb; - u->sink->flags |= PA_SINK_HW_VOLUME_CTRL | (u->hw_dB_supported ? PA_SINK_DECIBEL_VOLUME : 0); - pa_log_info("Using hardware volume control. Hardware dB scale %s.", u->hw_dB_supported ? "supported" : "not supported"); - - if (!u->hw_dB_supported) - u->sink->n_volume_steps = u->hw_volume_max - u->hw_volume_min + 1; - } else - pa_log_info("Using software volume control."); - } - - if (snd_mixer_selem_has_playback_switch(u->mixer_elem)) { - u->sink->get_mute = sink_get_mute_cb; - u->sink->set_mute = sink_set_mute_cb; - u->sink->flags |= PA_SINK_HW_MUTE_CTRL; - } else - pa_log_info("Using software mute control."); - - u->mixer_fdl = pa_alsa_fdlist_new(); - - if (pa_alsa_fdlist_set_mixer(u->mixer_fdl, u->mixer_handle, m->core->mainloop) < 0) { - pa_log("Failed to initialize file descriptor monitoring"); - goto fail; - } - - snd_mixer_elem_set_callback(u->mixer_elem, mixer_callback); - snd_mixer_elem_set_callback_private(u->mixer_elem, u); - } else - u->mixer_fdl = NULL; + if (setup_mixer(u, ignore_dB) < 0) + goto fail; pa_alsa_dump(u->pcm_handle); diff --git a/src/modules/alsa/alsa-source.c b/src/modules/alsa/alsa-source.c index 2b42d3f9..50cdb310 100644 --- a/src/modules/alsa/alsa-source.c +++ b/src/modules/alsa/alsa-source.c @@ -35,6 +35,7 @@ #include <pulse/xmalloc.h> #include <pulse/util.h> #include <pulse/timeval.h> +#include <pulse/i18n.h> #include <pulsecore/core-error.h> #include <pulsecore/core.h> @@ -56,11 +57,13 @@ #include "alsa-util.h" #include "alsa-source.h" +/* #define DEBUG_TIMING */ + #define DEFAULT_DEVICE "default" #define DEFAULT_TSCHED_BUFFER_USEC (2*PA_USEC_PER_SEC) /* 2s */ #define DEFAULT_TSCHED_WATERMARK_USEC (20*PA_USEC_PER_MSEC) /* 20ms */ -#define TSCHED_MIN_SLEEP_USEC (3*PA_USEC_PER_MSEC) /* 3ms */ -#define TSCHED_MIN_WAKEUP_USEC (3*PA_USEC_PER_MSEC) /* 3ms */ +#define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */ +#define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms */ struct userdata { pa_core *core; @@ -78,55 +81,85 @@ struct userdata { snd_mixer_elem_t *mixer_elem; long hw_volume_max, hw_volume_min; long hw_dB_max, hw_dB_min; - pa_bool_t hw_dB_supported; - pa_bool_t mixer_seperate_channels; + pa_bool_t hw_dB_supported:1; + pa_bool_t mixer_seperate_channels:1; pa_cvolume hardware_volume; - size_t frame_size, fragment_size, hwbuf_size, tsched_watermark; + size_t frame_size, fragment_size, hwbuf_size, tsched_watermark, hwbuf_unused, min_sleep, min_wakeup; unsigned nfragments; char *device_name; - pa_bool_t use_mmap, use_tsched; + pa_bool_t use_mmap:1, use_tsched:1; pa_rtpoll_item *alsa_rtpoll_item; snd_mixer_selem_channel_id_t mixer_map[SND_MIXER_SCHN_LAST]; pa_smoother *smoother; - int64_t frame_index; - - snd_pcm_sframes_t hwbuf_unused_frames; + uint64_t read_count; }; static void userdata_free(struct userdata *u); +static void fix_min_sleep_wakeup(struct userdata *u) { + size_t max_use, max_use_2; + pa_assert(u); + + max_use = u->hwbuf_size - u->hwbuf_unused; + max_use_2 = pa_frame_align(max_use/2, &u->source->sample_spec); + + u->min_sleep = pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC, &u->source->sample_spec); + u->min_sleep = PA_CLAMP(u->min_sleep, u->frame_size, max_use_2); + + u->min_wakeup = pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC, &u->source->sample_spec); + u->min_wakeup = PA_CLAMP(u->min_wakeup, u->frame_size, max_use_2); +} + static void fix_tsched_watermark(struct userdata *u) { size_t max_use; - size_t min_sleep, min_wakeup; pa_assert(u); - max_use = u->hwbuf_size - (size_t) u->hwbuf_unused_frames * u->frame_size; + max_use = u->hwbuf_size - u->hwbuf_unused; + + if (u->tsched_watermark > max_use - u->min_sleep) + u->tsched_watermark = max_use - u->min_sleep; + + if (u->tsched_watermark < u->min_wakeup) + u->tsched_watermark = u->min_wakeup; +} + +static void adjust_after_overrun(struct userdata *u) { + size_t old_watermark; + pa_usec_t old_min_latency, new_min_latency; + + pa_assert(u); + + /* First, just try to increase the watermark */ + old_watermark = u->tsched_watermark; + u->tsched_watermark *= 2; + fix_tsched_watermark(u); - min_sleep = pa_usec_to_bytes(TSCHED_MIN_SLEEP_USEC, &u->source->sample_spec); - min_wakeup = pa_usec_to_bytes(TSCHED_MIN_WAKEUP_USEC, &u->source->sample_spec); + if (old_watermark != u->tsched_watermark) { + pa_log_notice("Increasing wakeup watermark to %0.2f ms", + (double) pa_bytes_to_usec(u->tsched_watermark, &u->source->sample_spec) / PA_USEC_PER_MSEC); + return; + } - if (min_sleep > max_use/2) - min_sleep = pa_frame_align(max_use/2, &u->source->sample_spec); - if (min_sleep < u->frame_size) - min_sleep = u->frame_size; + /* Hmm, we cannot increase the watermark any further, hence let's raise the latency */ + old_min_latency = u->source->thread_info.min_latency; + new_min_latency = PA_MIN(old_min_latency * 2, u->source->thread_info.max_latency); - if (min_wakeup > max_use/2) - min_wakeup = pa_frame_align(max_use/2, &u->source->sample_spec); - if (min_wakeup < u->frame_size) - min_wakeup = u->frame_size; + if (old_min_latency != new_min_latency) { + pa_log_notice("Increasing minimal latency to %0.2f ms", + (double) new_min_latency / PA_USEC_PER_MSEC); - if (u->tsched_watermark > max_use-min_sleep) - u->tsched_watermark = max_use-min_sleep; + pa_source_update_latency_range(u->source, new_min_latency, u->source->thread_info.max_latency); + return; + } - if (u->tsched_watermark < min_wakeup) - u->tsched_watermark = min_wakeup; + /* When we reach this we're officialy fucked! */ } static pa_usec_t hw_sleep_time(struct userdata *u, pa_usec_t *sleep_usec, pa_usec_t*process_usec) { @@ -139,17 +172,20 @@ static pa_usec_t hw_sleep_time(struct userdata *u, pa_usec_t *sleep_usec, pa_use if (usec == (pa_usec_t) -1) usec = pa_bytes_to_usec(u->hwbuf_size, &u->source->sample_spec); -/* pa_log_debug("hw buffer time: %u ms", (unsigned) (usec / PA_USEC_PER_MSEC)); */ - wm = pa_bytes_to_usec(u->tsched_watermark, &u->source->sample_spec); - if (usec >= wm) { - *sleep_usec = usec - wm; - *process_usec = wm; - } else - *process_usec = *sleep_usec = usec /= 2; + if (wm > usec) + wm = usec/2; + + *sleep_usec = usec - wm; + *process_usec = wm; -/* pa_log_debug("after watermark: %u ms", (unsigned) (*sleep_usec / PA_USEC_PER_MSEC)); */ +#ifdef DEBUG_TIMING + pa_log_debug("Buffer time: %lu ms; Sleep time: %lu ms; Process time: %lu ms", + (unsigned long) (usec / PA_USEC_PER_MSEC), + (unsigned long) (*sleep_usec / PA_USEC_PER_MSEC), + (unsigned long) (*process_usec / PA_USEC_PER_MSEC)); +#endif return usec; } @@ -166,47 +202,50 @@ static int try_recover(struct userdata *u, const char *call, int err) { if (err == -EPIPE) pa_log_debug("%s: Buffer overrun!", call); - if ((err = snd_pcm_recover(u->pcm_handle, err, 1)) == 0) { - snd_pcm_start(u->pcm_handle); - return 0; + if ((err = snd_pcm_recover(u->pcm_handle, err, 1)) < 0) { + pa_log("%s: %s", call, snd_strerror(err)); + return -1; } - pa_log("%s: %s", call, snd_strerror(err)); - return -1; + snd_pcm_start(u->pcm_handle); + return 0; } -static size_t check_left_to_record(struct userdata *u, snd_pcm_sframes_t n) { +static size_t check_left_to_record(struct userdata *u, size_t n_bytes) { size_t left_to_record; - size_t rec_space = u->hwbuf_size - (size_t) u->hwbuf_unused_frames*u->frame_size; + size_t rec_space = u->hwbuf_size - u->hwbuf_unused; - if ((size_t) n*u->frame_size < rec_space) - left_to_record = rec_space - ((size_t) n*u->frame_size); - else - left_to_record = 0; + /* We use <= instead of < for this check here because an overrun + * only happens after the last sample was processed, not already when + * it is removed from the buffer. This is particularly important + * when block transfer is used. */ + + if (n_bytes <= rec_space) { + left_to_record = rec_space - n_bytes; + +#ifdef DEBUG_TIMING + pa_log_debug("%0.2f ms left to record", (double) pa_bytes_to_usec(left_to_record, &u->source->sample_spec) / PA_USEC_PER_MSEC); +#endif - if (left_to_record > 0) { -/* pa_log_debug("%0.2f ms left to record", (double) pa_bytes_to_usec(left_to_record, &u->source->sample_spec) / PA_USEC_PER_MSEC); */ } else { - if (pa_log_ratelimit()) - pa_log_info("Overrun!"); + left_to_record = 0; - if (u->use_tsched) { - size_t old_watermark = u->tsched_watermark; +#ifdef DEBUG_TIMING + PA_DEBUG_TRAP; +#endif - u->tsched_watermark *= 2; - fix_tsched_watermark(u); + if (pa_log_ratelimit()) + pa_log_info("Overrun!"); - if (old_watermark != u->tsched_watermark) - pa_log_notice("Increasing wakeup watermark to %0.2f ms", - (double) pa_bytes_to_usec(u->tsched_watermark, &u->source->sample_spec) / PA_USEC_PER_MSEC); - } + if (u->use_tsched) + adjust_after_overrun(u); } return left_to_record; } static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) { - int work_done = 0; + pa_bool_t work_done = FALSE; pa_usec_t max_sleep_usec = 0, process_usec = 0; size_t left_to_record; @@ -218,45 +257,63 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled for (;;) { snd_pcm_sframes_t n; + size_t n_bytes; int r; - snd_pcm_hwsync(u->pcm_handle); - - if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) { + if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) { - if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0) + if ((r = try_recover(u, "snd_pcm_avail", (int) n)) == 0) continue; return r; } - left_to_record = check_left_to_record(u, n); + n_bytes = (size_t) n * u->frame_size; + +#ifdef DEBUG_TIMING + pa_log_debug("avail: %lu", (unsigned long) n_bytes); +#endif + + left_to_record = check_left_to_record(u, n_bytes); if (u->use_tsched) if (!polled && - pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2) + pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2) { +#ifdef DEBUG_TIMING + pa_log_debug("Not reading, because too early."); +#endif break; + } - if (PA_UNLIKELY(n <= 0)) { + if (PA_UNLIKELY(n_bytes <= 0)) { if (polled && pa_log_ratelimit()) - pa_log("ALSA woke us up to read new data from the device, but there was actually nothing to read! " - "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " - "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail_update() returned 0."); + pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read! " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " + "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail_update() returned 0.")); +#ifdef DEBUG_TIMING + pa_log_debug("Not reading, because not necessary."); +#endif break; } polled = FALSE; +#ifdef DEBUG_TIMING + pa_log_debug("Reading"); +#endif + for (;;) { int err; const snd_pcm_channel_area_t *areas; - snd_pcm_uframes_t offset, frames = (snd_pcm_uframes_t) n; + snd_pcm_uframes_t offset, frames; pa_memchunk chunk; void *p; snd_pcm_sframes_t sframes; + frames = (snd_pcm_uframes_t) (n_bytes / u->frame_size); + /* pa_log_debug("%lu frames to read", (unsigned long) frames); */ if (PA_UNLIKELY((err = pa_alsa_safe_mmap_begin(u->pcm_handle, &areas, &offset, &frames, u->hwbuf_size, &u->source->sample_spec)) < 0)) { @@ -296,25 +353,27 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled return r; } - work_done = 1; + work_done = TRUE; - u->frame_index += (int64_t) frames; + u->read_count += frames * u->frame_size; -/* pa_log_debug("read %lu frames", (unsigned long) frames); */ +#ifdef DEBUG_TIMING + pa_log_debug("Read %lu bytes", (unsigned long) (frames * u->frame_size)); +#endif - if (frames >= (snd_pcm_uframes_t) n) + if ((size_t) frames * u->frame_size >= n_bytes) break; - n -= (snd_pcm_sframes_t) frames; + n_bytes -= (size_t) frames * u->frame_size; } } *sleep_usec = pa_bytes_to_usec(left_to_record, &u->source->sample_spec) - process_usec; - return work_done; + return work_done ? 1 : 0; } static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled) { - int work_done = 0; + int work_done = FALSE; pa_usec_t max_sleep_usec = 0, process_usec = 0; size_t left_to_record; @@ -326,33 +385,33 @@ static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled for (;;) { snd_pcm_sframes_t n; + size_t n_bytes; int r; - snd_pcm_hwsync(u->pcm_handle); - - if (PA_UNLIKELY((n = pa_alsa_safe_avail_update(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) { + if (PA_UNLIKELY((n = pa_alsa_safe_avail(u->pcm_handle, u->hwbuf_size, &u->source->sample_spec)) < 0)) { - if ((r = try_recover(u, "snd_pcm_avail_update", (int) n)) == 0) + if ((r = try_recover(u, "snd_pcm_avail", (int) n)) == 0) continue; return r; } - left_to_record = check_left_to_record(u, n); + n_bytes = (size_t) n * u->frame_size; + left_to_record = check_left_to_record(u, n_bytes); if (u->use_tsched) if (!polled && pa_bytes_to_usec(left_to_record, &u->source->sample_spec) > process_usec+max_sleep_usec/2) break; - if (PA_UNLIKELY(n <= 0)) { + if (PA_UNLIKELY(n_bytes <= 0)) { if (polled && pa_log_ratelimit()) - pa_log("ALSA woke us up to read new data from the device, but there was actually nothing to read! " - "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " - "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail_update() returned 0."); + pa_log(_("ALSA woke us up to read new data from the device, but there was actually nothing to read! " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers. " + "We were woken up with POLLIN set -- however a subsequent snd_pcm_avail_update() returned 0.")); - return work_done; + break; } polled = FALSE; @@ -366,8 +425,8 @@ static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled frames = (snd_pcm_sframes_t) (pa_memblock_get_length(chunk.memblock) / u->frame_size); - if (frames > n) - frames = n; + if (frames > (snd_pcm_sframes_t) (n_bytes/u->frame_size)) + frames = (snd_pcm_sframes_t) (n_bytes/u->frame_size); /* pa_log_debug("%lu frames to read", (unsigned long) n); */ @@ -392,53 +451,63 @@ static int unix_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled pa_source_post(u->source, &chunk); pa_memblock_unref(chunk.memblock); - work_done = 1; + work_done = TRUE; - u->frame_index += frames; + u->read_count += frames * u->frame_size; /* pa_log_debug("read %lu frames", (unsigned long) frames); */ - if (frames >= n) + if ((size_t) frames * u->frame_size >= n_bytes) break; - n -= frames; + n_bytes -= (size_t) frames * u->frame_size; } } *sleep_usec = pa_bytes_to_usec(left_to_record, &u->source->sample_spec) - process_usec; - return work_done; + return work_done ? 1 : 0; } static void update_smoother(struct userdata *u) { snd_pcm_sframes_t delay = 0; - int64_t frames; + uint64_t position; int err; - pa_usec_t now1, now2; + pa_usec_t now1 = 0, now2; + snd_pcm_status_t *status; + + snd_pcm_status_alloca(&status); pa_assert(u); pa_assert(u->pcm_handle); /* Let's update the time smoother */ - snd_pcm_hwsync(u->pcm_handle); - snd_pcm_avail_update(u->pcm_handle); - if (PA_UNLIKELY((err = snd_pcm_delay(u->pcm_handle, &delay)) < 0)) { pa_log_warn("Failed to get delay: %s", snd_strerror(err)); return; } - frames = u->frame_index + delay; + if (PA_UNLIKELY((err = snd_pcm_status(u->pcm_handle, status)) < 0)) + pa_log_warn("Failed to get timestamp: %s", snd_strerror(err)); + else { + snd_htimestamp_t htstamp = { 0, 0 }; + snd_pcm_status_get_htstamp(status, &htstamp); + now1 = pa_timespec_load(&htstamp); + } - now1 = pa_rtclock_usec(); - now2 = pa_bytes_to_usec((uint64_t) frames * u->frame_size, &u->source->sample_spec); + position = u->read_count + ((uint64_t) delay * (uint64_t) u->frame_size); + + /* Hmm, if the timestamp is 0, then it wasn't set and we take the current time */ + if (now1 <= 0) + now1 = pa_rtclock_usec(); + + now2 = pa_bytes_to_usec(position, &u->source->sample_spec); pa_smoother_put(u->smoother, now1, now2); } static pa_usec_t source_get_latency(struct userdata *u) { - pa_usec_t r = 0; - int64_t delay; + int64_t delay; pa_usec_t now1, now2; pa_assert(u); @@ -446,12 +515,9 @@ static pa_usec_t source_get_latency(struct userdata *u) { now1 = pa_rtclock_usec(); now2 = pa_smoother_get(u->smoother, now1); - delay = (int64_t) now2 - (int64_t) pa_bytes_to_usec((uint64_t) u->frame_index * u->frame_size, &u->source->sample_spec); - - if (delay > 0) - r = (pa_usec_t) delay; + delay = (int64_t) now2 - (int64_t) pa_bytes_to_usec(u->read_count, &u->source->sample_spec); - return r; + return delay >= 0 ? (pa_usec_t) delay : 0; } static int build_pollfd(struct userdata *u) { @@ -494,7 +560,7 @@ static int update_sw_params(struct userdata *u) { pa_assert(u); /* Use the full buffer if noone asked us for anything specific */ - u->hwbuf_unused_frames = 0; + u->hwbuf_unused = 0; if (u->use_tsched) { pa_usec_t latency; @@ -511,15 +577,14 @@ static int update_sw_params(struct userdata *u) { if (PA_UNLIKELY(b < u->frame_size)) b = u->frame_size; - u->hwbuf_unused_frames = (snd_pcm_sframes_t) - (PA_LIKELY(b < u->hwbuf_size) ? - ((u->hwbuf_size - b) / u->frame_size) : 0); + u->hwbuf_unused = PA_LIKELY(b < u->hwbuf_size) ? (u->hwbuf_size - b) : 0; } + fix_min_sleep_wakeup(u); fix_tsched_watermark(u); } - pa_log_debug("hwbuf_unused_frames=%lu", (unsigned long) u->hwbuf_unused_frames); + pa_log_debug("hwbuf_unused=%lu", (unsigned long) u->hwbuf_unused); avail_min = 1; @@ -951,11 +1016,13 @@ static void thread_func(void *userdata) { for (;;) { int ret; -/* pa_log_debug("loop"); */ +#ifdef DEBUG_TIMING + pa_log_debug("Loop"); +#endif /* Read some data and pass it to the sources */ if (PA_SOURCE_IS_OPENED(u->source->thread_info.state)) { - int work_done = 0; + int work_done; pa_usec_t sleep_usec = 0; if (u->use_mmap) @@ -1013,15 +1080,14 @@ static void thread_func(void *userdata) { goto fail; } - if (revents & (POLLOUT|POLLERR|POLLNVAL|POLLHUP|POLLPRI)) { + if (revents & ~POLLIN) { if (pa_alsa_recover_from_poll(u->pcm_handle, revents) < 0) goto fail; snd_pcm_start(u->pcm_handle); - } + } else if (revents && u->use_tsched && pa_log_ratelimit()) + pa_log_debug("Wakeup from ALSA!"); - if (revents && u->use_tsched && pa_log_ratelimit()) - pa_log_debug("Wakeup from ALSA!%s%s", (revents & POLLIN) ? " INPUT" : "", (revents & POLLOUT) ? " OUTPUT" : ""); } else revents = 0; } @@ -1062,6 +1128,91 @@ static void set_source_name(pa_source_new_data *data, pa_modargs *ma, const char pa_xfree(t); } +static int setup_mixer(struct userdata *u, pa_bool_t ignore_dB) { + pa_assert(u); + + if (!u->mixer_handle) + return 0; + + pa_assert(u->mixer_elem); + + if (snd_mixer_selem_has_capture_volume(u->mixer_elem)) { + pa_bool_t suitable = FALSE; + + if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) + pa_log_info("Failed to get volume range. Falling back to software volume control."); + else if (u->hw_volume_min >= u->hw_volume_max) + pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u->hw_volume_min, u->hw_volume_max); + else { + pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max); + suitable = TRUE; + } + + if (suitable) { + if (ignore_dB || snd_mixer_selem_get_capture_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0) + pa_log_info("Mixer doesn't support dB information or data is ignored."); + else { +#ifdef HAVE_VALGRIND_MEMCHECK_H + VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min)); + VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max)); +#endif + + if (u->hw_dB_min >= u->hw_dB_max) + pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); + else { + pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); + u->hw_dB_supported = TRUE; + + if (u->hw_dB_max > 0) { + u->source->base_volume = pa_sw_volume_from_dB(- (double) u->hw_dB_max/100.0); + pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u->source->base_volume)); + } else + pa_log_info("No particular base volume set, fixing to 0 dB"); + } + } + + if (!u->hw_dB_supported && + u->hw_volume_max - u->hw_volume_min < 3) { + + pa_log_info("Device has less than 4 volume levels. Falling back to software volume control."); + suitable = FALSE; + } + } + + if (suitable) { + u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &u->source->channel_map, u->mixer_map, FALSE) >= 0; + + u->source->get_volume = source_get_volume_cb; + u->source->set_volume = source_set_volume_cb; + u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL | (u->hw_dB_supported ? PA_SOURCE_DECIBEL_VOLUME : 0); + pa_log_info("Using hardware volume control. Hardware dB scale %s.", u->hw_dB_supported ? "supported" : "not supported"); + + if (!u->hw_dB_supported) + u->source->n_volume_steps = u->hw_volume_max - u->hw_volume_min + 1; + } else + pa_log_info("Using software volume control."); + } + + if (snd_mixer_selem_has_capture_switch(u->mixer_elem)) { + u->source->get_mute = source_get_mute_cb; + u->source->set_mute = source_set_mute_cb; + u->source->flags |= PA_SOURCE_HW_MUTE_CTRL; + } else + pa_log_info("Using software mute control."); + + u->mixer_fdl = pa_alsa_fdlist_new(); + + if (pa_alsa_fdlist_set_mixer(u->mixer_fdl, u->mixer_handle, u->core->mainloop) < 0) { + pa_log("Failed to initialize file descriptor monitoring"); + return -1; + } + + snd_mixer_elem_set_callback(u->mixer_elem, mixer_callback); + snd_mixer_elem_set_callback_private(u->mixer_elem, u); + + return 0; +} + pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, pa_card *card, const pa_alsa_profile_info *profile) { struct userdata *u = NULL; @@ -1071,14 +1222,11 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p uint32_t nfrags, hwbuf_size, frag_size, tsched_size, tsched_watermark; snd_pcm_uframes_t period_frames, tsched_frames; size_t frame_size; - snd_pcm_info_t *pcm_info = NULL; - int err; pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE; pa_source_new_data data; - snd_pcm_info_alloca(&pcm_info); - pa_assert(m); + pa_assert(ma); ss = m->core->default_sample_spec; if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_ALSA) < 0) { @@ -1136,7 +1284,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll); u->alsa_rtpoll_item = NULL; - u->smoother = pa_smoother_new(DEFAULT_TSCHED_WATERMARK_USEC, DEFAULT_TSCHED_WATERMARK_USEC, TRUE, 5); + u->smoother = pa_smoother_new(DEFAULT_TSCHED_WATERMARK_USEC*2, DEFAULT_TSCHED_WATERMARK_USEC*2, TRUE, 5); pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec()); b = use_mmap; @@ -1193,7 +1341,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p } if (use_tsched && (!b || !d)) { - pa_log_info("Cannot enabled timer-based scheduling, falling back to sound IRQ scheduling."); + pa_log_info("Cannot enable timer-based scheduling, falling back to sound IRQ scheduling."); u->use_tsched = use_tsched = FALSE; } @@ -1203,51 +1351,10 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p if (u->use_tsched) pa_log_info("Successfully enabled timer-based scheduling mode."); - if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) { - pa_log("Error fetching PCM info: %s", snd_strerror(err)); - goto fail; - } - /* ALSA might tweak the sample spec, so recalculate the frame size */ frame_size = pa_frame_size(&ss); - if ((err = snd_mixer_open(&u->mixer_handle, 0)) < 0) - pa_log("Error opening mixer: %s", snd_strerror(err)); - else { - pa_bool_t found = FALSE; - - if (pa_alsa_prepare_mixer(u->mixer_handle, u->device_name) >= 0) - found = TRUE; - else { - snd_pcm_info_t* info; - - snd_pcm_info_alloca(&info); - - if (snd_pcm_info(u->pcm_handle, info) >= 0) { - char *md; - int card_idx; - - if ((card_idx = snd_pcm_info_get_card(info)) >= 0) { - - md = pa_sprintf_malloc("hw:%i", card_idx); - - if (strcmp(u->device_name, md)) - if (pa_alsa_prepare_mixer(u->mixer_handle, md) >= 0) - found = TRUE; - pa_xfree(md); - } - } - } - - if (found) - if (!(u->mixer_elem = pa_alsa_find_elem(u->mixer_handle, "Capture", "Mic", FALSE))) - found = FALSE; - - if (!found) { - snd_mixer_close(u->mixer_handle); - u->mixer_handle = NULL; - } - } + pa_alsa_find_mixer_and_elem(u->pcm_handle, &u->mixer_handle, &u->mixer_elem); pa_source_new_data_init(&data); data.driver = driver; @@ -1257,7 +1364,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p pa_source_new_data_set_sample_spec(&data, &ss); pa_source_new_data_set_channel_map(&data, &map); - pa_alsa_init_proplist_pcm(m->core, data.proplist, pcm_info); + pa_alsa_init_proplist_pcm(m->core, data.proplist, u->pcm_handle); pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_name); pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (period_frames * frame_size * nfrags)); pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (period_frames * frame_size)); @@ -1287,17 +1394,13 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p u->fragment_size = frag_size = (uint32_t) (period_frames * frame_size); u->nfragments = nfrags; u->hwbuf_size = u->fragment_size * nfrags; - u->hwbuf_unused_frames = 0; u->tsched_watermark = tsched_watermark; - u->frame_index = 0; - u->hw_dB_supported = FALSE; - u->hw_dB_min = u->hw_dB_max = 0; - u->hw_volume_min = u->hw_volume_max = 0; - u->mixer_seperate_channels = FALSE; pa_cvolume_mute(&u->hardware_volume, u->source->sample_spec.channels); - if (use_tsched) + if (use_tsched) { + fix_min_sleep_wakeup(u); fix_tsched_watermark(u); + } pa_source_set_latency_range(u->source, !use_tsched ? pa_bytes_to_usec(u->hwbuf_size, &ss) : (pa_usec_t) -1, @@ -1314,85 +1417,8 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p if (update_sw_params(u) < 0) goto fail; - if (u->mixer_handle) { - pa_assert(u->mixer_elem); - - if (snd_mixer_selem_has_capture_volume(u->mixer_elem)) { - pa_bool_t suitable = FALSE; - - if (snd_mixer_selem_get_capture_volume_range(u->mixer_elem, &u->hw_volume_min, &u->hw_volume_max) < 0) - pa_log_info("Failed to get volume range. Falling back to software volume control."); - else if (u->hw_volume_min >= u->hw_volume_max) - pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", u->hw_volume_min, u->hw_volume_max); - else { - pa_log_info("Volume ranges from %li to %li.", u->hw_volume_min, u->hw_volume_max); - suitable = TRUE; - } - - if (suitable) { - if (ignore_dB || snd_mixer_selem_get_capture_dB_range(u->mixer_elem, &u->hw_dB_min, &u->hw_dB_max) < 0) - pa_log_info("Mixer doesn't support dB information or data is ignored."); - else { -#ifdef HAVE_VALGRIND_MEMCHECK_H - VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_min, sizeof(u->hw_dB_min)); - VALGRIND_MAKE_MEM_DEFINED(&u->hw_dB_max, sizeof(u->hw_dB_max)); -#endif - - if (u->hw_dB_min >= u->hw_dB_max) - pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); - else { - pa_log_info("Volume ranges from %0.2f dB to %0.2f dB.", (double) u->hw_dB_min/100.0, (double) u->hw_dB_max/100.0); - u->hw_dB_supported = TRUE; - - if (u->hw_dB_max > 0) { - u->source->base_volume = pa_sw_volume_from_dB(- (double) u->hw_dB_max/100.0); - pa_log_info("Fixing base volume to %0.2f dB", pa_sw_volume_to_dB(u->source->base_volume)); - } else - pa_log_info("No particular base volume set, fixing to 0 dB"); - - } - } - - if (!u->hw_dB_supported && - u->hw_volume_max - u->hw_volume_min < 3) { - - pa_log_info("Device has less than 4 volume levels. Falling back to software volume control."); - suitable = FALSE; - } - } - - if (suitable) { - u->mixer_seperate_channels = pa_alsa_calc_mixer_map(u->mixer_elem, &map, u->mixer_map, FALSE) >= 0; - - u->source->get_volume = source_get_volume_cb; - u->source->set_volume = source_set_volume_cb; - u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL | (u->hw_dB_supported ? PA_SOURCE_DECIBEL_VOLUME : 0); - pa_log_info("Using hardware volume control. Hardware dB scale %s.", u->hw_dB_supported ? "supported" : "not supported"); - - if (!u->hw_dB_supported) - u->source->n_volume_steps = u->hw_volume_max - u->hw_volume_min + 1; - } else - pa_log_info("Using software volume control."); - } - - if (snd_mixer_selem_has_capture_switch(u->mixer_elem)) { - u->source->get_mute = source_get_mute_cb; - u->source->set_mute = source_set_mute_cb; - u->source->flags |= PA_SOURCE_HW_MUTE_CTRL; - } else - pa_log_info("Using software mute control."); - - u->mixer_fdl = pa_alsa_fdlist_new(); - - if (pa_alsa_fdlist_set_mixer(u->mixer_fdl, u->mixer_handle, m->core->mainloop) < 0) { - pa_log("Failed to initialize file descriptor monitoring"); - goto fail; - } - - snd_mixer_elem_set_callback(u->mixer_elem, mixer_callback); - snd_mixer_elem_set_callback_private(u->mixer_elem, u); - } else - u->mixer_fdl = NULL; + if (setup_mixer(u, ignore_dB) < 0) + goto fail; pa_alsa_dump(u->pcm_handle); diff --git a/src/modules/alsa/alsa-util.c b/src/modules/alsa/alsa-util.c index 5236d02f..d00a80f1 100644 --- a/src/modules/alsa/alsa-util.c +++ b/src/modules/alsa/alsa-util.c @@ -1,7 +1,7 @@ /*** This file is part of PulseAudio. - Copyright 2004-2006 Lennart Poettering + Copyright 2004-2009 Lennart Poettering Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB PulseAudio is free software; you can redistribute it and/or modify @@ -32,11 +32,13 @@ #include <pulse/xmalloc.h> #include <pulse/timeval.h> #include <pulse/util.h> +#include <pulse/i18n.h> #include <pulsecore/log.h> #include <pulsecore/macro.h> #include <pulsecore/core-util.h> #include <pulsecore/atomic.h> +#include <pulsecore/core-error.h> #include "alsa-util.h" @@ -112,7 +114,7 @@ static void io_cb(pa_mainloop_api*a, pa_io_event* e, int fd, pa_io_event_flags_t static void defer_cb(pa_mainloop_api*a, pa_defer_event* e, void *userdata) { struct pa_alsa_fdlist *fdl = userdata; unsigned num_fds, i; - int err; + int err, n; struct pollfd *temp; pa_assert(a); @@ -121,7 +123,11 @@ static void defer_cb(pa_mainloop_api*a, pa_defer_event* e, void *userdata) { a->defer_enable(fdl->defer, 0); - num_fds = (unsigned) snd_mixer_poll_descriptors_count(fdl->mixer); + if ((n = snd_mixer_poll_descriptors_count(fdl->mixer)) < 0) { + pa_log("snd_mixer_poll_descriptors_count() failed: %s", snd_strerror(n)); + return; + } + num_fds = (unsigned) n; if (num_fds != fdl->num_fds) { if (fdl->fds) @@ -342,7 +348,8 @@ int pa_alsa_set_hw_params( goto finish; if (_use_mmap) { - if ((ret = snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_MMAP_INTERLEAVED)) < 0) { + + if (snd_pcm_hw_params_set_access(pcm_handle, hwparams, SND_PCM_ACCESS_MMAP_INTERLEAVED) < 0) { /* mmap() didn't work, fall back to interleaved */ @@ -462,6 +469,7 @@ finish: int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min) { snd_pcm_sw_params_t *swparams; + snd_pcm_uframes_t boundary; int err; pa_assert(pcm); @@ -473,7 +481,22 @@ int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min) { return err; } - if ((err = snd_pcm_sw_params_set_stop_threshold(pcm, swparams, (snd_pcm_uframes_t) -1)) < 0) { + if ((err = snd_pcm_sw_params_set_period_event(pcm, swparams, 0)) < 0) { + pa_log_warn("Unable to disable period event: %s\n", snd_strerror(err)); + return err; + } + + if ((err = snd_pcm_sw_params_set_tstamp_mode(pcm, swparams, SND_PCM_TSTAMP_ENABLE)) < 0) { + pa_log_warn("Unable to enable time stamping: %s\n", snd_strerror(err)); + return err; + } + + if ((err = snd_pcm_sw_params_get_boundary(swparams, &boundary)) < 0) { + pa_log_warn("Unable to get boundary: %s\n", snd_strerror(err)); + return err; + } + + if ((err = snd_pcm_sw_params_set_stop_threshold(pcm, swparams, boundary)) < 0) { pa_log_warn("Unable to set stop threshold: %s\n", snd_strerror(err)); return err; } @@ -499,39 +522,39 @@ int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min) { static const struct pa_alsa_profile_info device_table[] = { {{ 1, { PA_CHANNEL_POSITION_MONO }}, "hw", - "Analog Mono", + N_("Analog Mono"), "analog-mono", 1 }, {{ 2, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT }}, "front", - "Analog Stereo", + N_("Analog Stereo"), "analog-stereo", 10 }, {{ 2, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT }}, "iec958", - "IEC958 Digital Stereo", + N_("Digital Stereo (IEC958)"), "iec958-stereo", 5 }, {{ 2, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT }}, "hdmi", - "HDMI Digital Stereo", + N_("Digital Stereo (HDMI)"), "hdmi-stereo", 4 }, {{ 4, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT }}, "surround40", - "Analog Surround 4.0", + N_("Analog Surround 4.0"), "analog-surround-40", 7 }, {{ 4, { PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT }}, "a52", - "IEC958/AC3 Digital Surround 4.0", + N_("Digital Surround 4.0 (IEC958/AC3)"), "iec958-ac3-surround-40", 2 }, @@ -539,7 +562,7 @@ static const struct pa_alsa_profile_info device_table[] = { PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE }}, "surround41", - "Analog Surround 4.1", + N_("Analog Surround 4.1"), "analog-surround-41", 7 }, @@ -547,7 +570,7 @@ static const struct pa_alsa_profile_info device_table[] = { PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_CENTER }}, "surround50", - "Analog Surround 5.0", + N_("Analog Surround 5.0"), "analog-surround-50", 7 }, @@ -555,7 +578,7 @@ static const struct pa_alsa_profile_info device_table[] = { PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_LFE }}, "surround51", - "Analog Surround 5.1", + N_("Analog Surround 5.1"), "analog-surround-51", 8 }, @@ -563,7 +586,7 @@ static const struct pa_alsa_profile_info device_table[] = { PA_CHANNEL_POSITION_FRONT_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE}}, "a52", - "IEC958/AC3 Digital Surround 5.1", + N_("Digital Surround 5.1 (IEC958/AC3)"), "iec958-ac3-surround-51", 3 }, @@ -572,7 +595,7 @@ static const struct pa_alsa_profile_info device_table[] = { PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT }}, "surround71", - "Analog Surround 7.1", + N_("Analog Surround 7.1"), "analog-surround-71", 7 }, @@ -805,8 +828,7 @@ snd_pcm_t *pa_alsa_open_by_device_string( SND_PCM_NO_AUTO_CHANNELS| (reformat ? 0 : SND_PCM_NO_AUTO_FORMAT))) < 0) { pa_log_info("Error opening PCM device %s: %s", d, snd_strerror(err)); - pa_xfree(d); - return NULL; + goto fail; } if ((err = pa_alsa_set_hw_params(pcm_handle, ss, nfrags, period_size, tsched_size, use_mmap, use_tsched, require_exact_channel_number)) < 0) { @@ -834,9 +856,9 @@ snd_pcm_t *pa_alsa_open_by_device_string( } pa_log_info("Failed to set hardware parameters on %s: %s", d, snd_strerror(err)); - pa_xfree(d); snd_pcm_close(pcm_handle); - return NULL; + + goto fail; } if (dev) @@ -849,6 +871,11 @@ snd_pcm_t *pa_alsa_open_by_device_string( return pcm_handle; } + +fail: + pa_xfree(d); + + return NULL; } int pa_alsa_probe_profiles( @@ -1057,6 +1084,86 @@ success: return elem; } + +int pa_alsa_find_mixer_and_elem( + snd_pcm_t *pcm, + snd_mixer_t **_m, + snd_mixer_elem_t **_e) { + + int err; + snd_mixer_t *m; + snd_mixer_elem_t *e; + pa_bool_t found = FALSE; + const char *dev; + + pa_assert(pcm); + pa_assert(_m); + pa_assert(_e); + + if ((err = snd_mixer_open(&m, 0)) < 0) { + pa_log("Error opening mixer: %s", snd_strerror(err)); + return -1; + } + + /* First, try by name */ + if ((dev = snd_pcm_name(pcm))) + if (pa_alsa_prepare_mixer(m, dev) >= 0) + found = TRUE; + + /* Then, try by card index */ + if (!found) { + snd_pcm_info_t* info; + snd_pcm_info_alloca(&info); + + if (snd_pcm_info(pcm, info) >= 0) { + char *md; + int card_idx; + + if ((card_idx = snd_pcm_info_get_card(info)) >= 0) { + + md = pa_sprintf_malloc("hw:%i", card_idx); + + if (!dev || !pa_streq(dev, md)) + if (pa_alsa_prepare_mixer(m, md) >= 0) + found = TRUE; + + pa_xfree(md); + } + } + } + + if (!found) { + snd_mixer_close(m); + return -1; + } + + switch (snd_pcm_stream(pcm)) { + + case SND_PCM_STREAM_PLAYBACK: + e = pa_alsa_find_elem(m, "Master", "PCM", TRUE); + break; + + case SND_PCM_STREAM_CAPTURE: + e = pa_alsa_find_elem(m, "Capture", "Mic", FALSE); + break; + + default: + pa_assert_not_reached(); + } + + if (!e) { + snd_mixer_close(m); + return -1; + } + + pa_assert(e && m); + + *_m = m; + *_e = e; + + return 0; +} + static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = { [PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */ @@ -1281,7 +1388,7 @@ void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card) { #endif } -void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info) { +void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info) { static const char * const alsa_class_table[SND_PCM_CLASS_LAST+1] = { [SND_PCM_CLASS_GENERIC] = "generic", @@ -1302,7 +1409,7 @@ void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_i snd_pcm_class_t class; snd_pcm_subclass_t subclass; - const char *n, *id, *sdn, *cn; + const char *n, *id, *sdn, *cn = NULL; int card; pa_assert(p); @@ -1347,6 +1454,28 @@ void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_i pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, n); } +void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm) { + snd_pcm_hw_params_t *hwparams; + snd_pcm_info_t *info; + int bits, err; + + snd_pcm_hw_params_alloca(&hwparams); + snd_pcm_info_alloca(&info); + + if ((err = snd_pcm_hw_params_current(pcm, hwparams)) < 0) + pa_log_warn("Error fetching hardware parameter info: %s", snd_strerror(err)); + else { + + if ((bits = snd_pcm_hw_params_get_sbits(hwparams)) >= 0) + pa_proplist_setf(p, "alsa.resolution_bits", "%i", bits); + } + + if ((err = snd_pcm_info(pcm, info)) < 0) + pa_log_warn("Error fetching PCM info: %s", snd_strerror(err)); + else + pa_alsa_init_proplist_pcm_info(c, p, info); +} + int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents) { snd_pcm_state_t state; int err; @@ -1425,7 +1554,7 @@ pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll) { return item; } -snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss) { +snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss) { snd_pcm_sframes_t n; size_t k; @@ -1436,7 +1565,7 @@ snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, c /* Some ALSA driver expose weird bugs, let's inform the user about * what is going on */ - n = snd_pcm_avail_update(pcm); + n = snd_pcm_avail(pcm); if (n <= 0) return n; @@ -1445,8 +1574,8 @@ snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, c if (k >= hwbuf_size * 3 || k >= pa_bytes_per_second(ss)*10) - pa_log("snd_pcm_avail_update() returned a value that is exceptionally large: %lu bytes (%lu ms) " - "Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers.", + pa_log(_("snd_pcm_avail_update() returned a value that is exceptionally large: %lu bytes (%lu ms). " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers."), (unsigned long) k, (unsigned long) (pa_bytes_to_usec(k, ss) / PA_USEC_PER_MSEC)); return n; @@ -1477,8 +1606,8 @@ int pa_alsa_safe_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas k >= hwbuf_size * 3 || k >= pa_bytes_per_second(ss)*10) - pa_log("snd_pcm_mmap_begin() returned a value that is exceptionally large: %lu bytes (%lu ms) " - "Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers.", + pa_log(_("snd_pcm_mmap_begin() returned a value that is exceptionally large: %lu bytes (%lu ms). " + "Most likely this is an ALSA driver bug. Please report this issue to the ALSA developers."), (unsigned long) k, (unsigned long) (pa_bytes_to_usec(k, ss) / PA_USEC_PER_MSEC)); return r; diff --git a/src/modules/alsa/alsa-util.h b/src/modules/alsa/alsa-util.h index 8a209348..2d0f407e 100644 --- a/src/modules/alsa/alsa-util.h +++ b/src/modules/alsa/alsa-util.h @@ -54,11 +54,12 @@ int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min); int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev); snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback, pa_bool_t playback); +int pa_alsa_find_mixer_and_elem(snd_pcm_t *pcm, snd_mixer_t **_m, snd_mixer_elem_t **_e); typedef struct pa_alsa_profile_info { pa_channel_map map; const char *alsa_name; - const char *description; + const char *description; /* internationalized */ const char *name; unsigned priority; } pa_alsa_profile_info; @@ -119,14 +120,15 @@ void pa_alsa_dump_status(snd_pcm_t *pcm); void pa_alsa_redirect_errors_inc(void); void pa_alsa_redirect_errors_dec(void); -void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info); +void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info); void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card); +void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm); int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents); pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll); -snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss); +snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss); int pa_alsa_safe_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames, size_t hwbuf_size, const pa_sample_spec *ss); char *pa_alsa_get_driver_name(int card); diff --git a/src/modules/alsa/module-alsa-card.c b/src/modules/alsa/module-alsa-card.c index e63414ec..e517ddcc 100644 --- a/src/modules/alsa/module-alsa-card.c +++ b/src/modules/alsa/module-alsa-card.c @@ -24,6 +24,8 @@ #endif #include <pulse/xmalloc.h> +#include <pulse/i18n.h> + #include <pulsecore/core-util.h> #include <pulsecore/modargs.h> #include <pulsecore/queue.h> @@ -104,14 +106,14 @@ static void enumerate_cb( if (sink && source) { n = pa_sprintf_malloc("output-%s+input-%s", sink->name, source->name); - t = pa_sprintf_malloc("Output %s + Input %s", sink->description, source->description); + t = pa_sprintf_malloc(_("Output %s + Input %s"), sink->description, _(source->description)); } else if (sink) { n = pa_sprintf_malloc("output-%s", sink->name); - t = pa_sprintf_malloc("Output %s", sink->description); + t = pa_sprintf_malloc(_("Output %s"), _(sink->description)); } else { pa_assert(source); n = pa_sprintf_malloc("input-%s", source->name); - t = pa_sprintf_malloc("Input %s", source->description); + t = pa_sprintf_malloc(_("Input %s"), _(source->description)); } pa_log_info("Found output profile '%s'", t); @@ -142,7 +144,7 @@ static void add_disabled_profile(pa_hashmap *profiles) { pa_card_profile *p; struct profile_data *d; - p = pa_card_profile_new("off", "Off", sizeof(struct profile_data)); + p = pa_card_profile_new("off", _("Off"), sizeof(struct profile_data)); d = PA_CARD_PROFILE_DATA(p); d->sink_profile = d->source_profile = NULL; |