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nixpkgs/pkgs/applications/audio/xmms/alsa.patch
Eelco Dolstra 69b41650ad * Fix an annoying problem with xmms's ALSA output driver. Thanks 
SuSE!

svn path=/nixpkgs/trunk/; revision=4607
2006-01-26 23:34:22 +00:00

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diff -rc xmms-1.2.10-orig/Output/alsa/alsa.h xmms-1.2.10/Output/alsa/alsa.h
*** xmms-1.2.10-orig/Output/alsa/alsa.h 2004-01-11 17:27:26.000000000 +0100
--- xmms-1.2.10/Output/alsa/alsa.h 2006-01-27 00:28:49.000000000 +0100
***************
*** 50,57 ****
char *mixer_device;
int buffer_time;
int period_time;
gboolean debug;
- gboolean mmap;
struct
{
int left, right;
--- 50,57 ----
char *mixer_device;
int buffer_time;
int period_time;
+ int thread_buffer_time;
gboolean debug;
struct
{
int left, right;
***************
*** 65,72 ****
void alsa_about(void);
void alsa_configure(void);
int alsa_get_mixer(snd_mixer_t **mixer, int card);
- snd_mixer_elem_t* alsa_get_mixer_elem(snd_mixer_t *mixer, char *name, int index);
- int alsa_setup_mixer(void);
void alsa_save_config(void);
void alsa_get_volume(int *l, int *r);
--- 65,70 ----
diff -rc xmms-1.2.10-orig/Output/alsa/audio.c xmms-1.2.10/Output/alsa/audio.c
*** xmms-1.2.10-orig/Output/alsa/audio.c 2004-01-28 00:09:39.000000000 +0100
--- xmms-1.2.10/Output/alsa/audio.c 2006-01-27 00:28:49.000000000 +0100
***************
*** 17,52 ****
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "alsa.h"
#include <ctype.h>
#include <libxmms/xconvert.h>
static snd_pcm_t *alsa_pcm = NULL;
- static snd_pcm_status_t *alsa_status = NULL;
- static snd_pcm_channel_area_t *areas = NULL;
static snd_output_t *logs = NULL;
! static int alsa_bps = 0;
! static guint64 alsa_total_written = 0;
/* Set/Get volume */
static snd_mixer_elem_t *pcm_element = NULL;
static snd_mixer_t *mixer = NULL;
! static gboolean mmap, force_start, going, paused;
! static gpointer buffer;
- static int alsa_can_pause;
struct snd_format {
unsigned int rate;
unsigned int channels;
snd_pcm_format_t format;
AFormat xmms_format;
};
static struct snd_format *inputf = NULL;
--- 17,72 ----
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *
+ * CHANGES
+ *
+ * 2005.01.05 Takashi Iwai <tiwai@suse.de>
+ * Impelemented the multi-threaded mode with an audio-thread.
+ * Many fixes and cleanups.
*/
#include "alsa.h"
#include <ctype.h>
+ #include <pthread.h>
#include <libxmms/xconvert.h>
static snd_pcm_t *alsa_pcm = NULL;
static snd_output_t *logs = NULL;
! static guint64 alsa_total_written = 0; /* input bytes */
! static guint64 alsa_hw_written = 0; /* output bytes */
! static gint output_time_offset = 0;
!
! /* device buffer/period sizes in bytes */
! static int hw_buffer_size, hw_period_size; /* in output bytes */
! static int hw_buffer_size_in, hw_period_size_in; /* in input bytes */
/* Set/Get volume */
static snd_mixer_elem_t *pcm_element = NULL;
static snd_mixer_t *mixer = NULL;
! static gboolean going, paused;
! static gboolean alsa_can_pause;
!
! /* for audio thread */
! static pthread_t audio_thread; /* audio loop thread */
! static int thread_buffer_size; /* size of intermediate buffer in bytes */
! static char *thread_buffer; /* audio intermediate buffer */
! static int rd_index, wr_index; /* current read/write position in int-buffer */
! static gboolean pause_request; /* pause status currently requested */
! static gint flush_request; /* flush status (time) currently requested */
struct snd_format {
unsigned int rate;
unsigned int channels;
snd_pcm_format_t format;
AFormat xmms_format;
+ int sample_bits;
+ int bps;
};
static struct snd_format *inputf = NULL;
***************
*** 54,61 ****
static struct snd_format *outputf = NULL;
static int alsa_setup(struct snd_format *f);
! static void alsa_mmap_audio(char *data, int length);
! static void alsa_write_audio(gpointer data, int length);
static struct snd_format * snd_format_from_xmms(AFormat fmt, int rate, int channels);
--- 74,80 ----
static struct snd_format *outputf = NULL;
static int alsa_setup(struct snd_format *f);
! static void alsa_write_audio(char *data, int length);
static struct snd_format * snd_format_from_xmms(AFormat fmt, int rate, int channels);
***************
*** 71,92 ****
} format_table[] =
{{FMT_S16_LE, SND_PCM_FORMAT_S16_LE},
{FMT_S16_BE, SND_PCM_FORMAT_S16_BE},
! {FMT_S16_NE,
! #ifdef WORDS_BIGENDIAN
! SND_PCM_FORMAT_S16_BE
! #else
! SND_PCM_FORMAT_S16_LE
! #endif
! },
{FMT_U16_LE, SND_PCM_FORMAT_U16_LE},
{FMT_U16_BE, SND_PCM_FORMAT_U16_BE},
! {FMT_U16_NE,
! #ifdef WORDS_BIGENDIAN
! SND_PCM_FORMAT_U16_BE
! #else
! SND_PCM_FORMAT_U16_LE
! #endif
! },
{FMT_U8, SND_PCM_FORMAT_U8},
{FMT_S8, SND_PCM_FORMAT_S8},
};
--- 90,99 ----
} format_table[] =
{{FMT_S16_LE, SND_PCM_FORMAT_S16_LE},
{FMT_S16_BE, SND_PCM_FORMAT_S16_BE},
! {FMT_S16_NE, SND_PCM_FORMAT_S16},
{FMT_U16_LE, SND_PCM_FORMAT_U16_LE},
{FMT_U16_BE, SND_PCM_FORMAT_U16_BE},
! {FMT_U16_NE, SND_PCM_FORMAT_U16},
{FMT_U8, SND_PCM_FORMAT_U8},
{FMT_S8, SND_PCM_FORMAT_S8},
};
***************
*** 106,281 ****
}
}
! int alsa_playing(void)
! {
! if (!going || paused)
! return FALSE;
!
! return(snd_pcm_state(alsa_pcm) == SND_PCM_STATE_RUNNING);
! }
!
! static void xrun_recover(void)
! {
! int err;
!
! if (alsa_cfg.debug)
! {
! snd_pcm_status_alloca(&alsa_status);
! if ((err = snd_pcm_status(alsa_pcm, alsa_status)) < 0)
! g_warning("xrun_recover(): snd_pcm_status() failed");
! else
! {
! printf("Status:\n");
! snd_pcm_status_dump(alsa_status, logs);
! }
! }
!
! if (snd_pcm_state(alsa_pcm) == SND_PCM_STATE_XRUN)
! {
! if ((err = snd_pcm_prepare(alsa_pcm)) < 0)
! g_warning("xrun_recover(): snd_pcm_prepare() failed.");
! }
! }
!
! static snd_pcm_sframes_t alsa_get_avail(void)
! {
! snd_pcm_sframes_t ret;
! if ((ret = snd_pcm_avail_update(alsa_pcm)) == -EPIPE)
! xrun_recover();
! else if (ret < 0)
! {
! g_warning("alsa_get_avail(): snd_pcm_avail_update() failed: %s",
! snd_strerror(-ret));
! return 0;
! }
! else
! return ret;
! if ((ret = snd_pcm_avail_update(alsa_pcm)) < 0)
! {
! g_warning("alsa_get_avail(): snd_pcm_avail_update() failed: %s",
! snd_strerror(-ret));
! return 0;
! }
! return ret;
! }
!
! int alsa_free(void)
! {
! if (paused)
! return 0;
! else
! {
! int err;
! if (force_start &&
! snd_pcm_state(alsa_pcm) == SND_PCM_STATE_PREPARED)
! {
! if ((err = snd_pcm_start(alsa_pcm)) < 0)
! g_warning("alsa_free(): snd_pcm_start() "
! "failed: %s", snd_strerror(-err));
! else
! debug("Stream started");
! }
! force_start = TRUE;
!
! return snd_pcm_frames_to_bytes(alsa_pcm, alsa_get_avail());
! }
! }
!
! void alsa_pause(short p)
! {
! debug("alsa_pause");
! if (p)
! paused = TRUE;
!
! if (alsa_can_pause)
! snd_pcm_pause(alsa_pcm, p);
! else if (p)
! snd_pcm_drop(alsa_pcm);
!
! if (!p)
! paused = FALSE;
! }
!
! void alsa_close(void)
! {
! int err, started;
!
! debug("Closing device");
!
! started = going;
! going = 0;
!
! pcm_element = NULL;
!
! if (mixer)
! {
! snd_mixer_close(mixer);
! mixer = NULL;
! }
!
! if (alsa_pcm != NULL)
! {
! if (started)
! if ((err = snd_pcm_drop(alsa_pcm)) < 0)
! g_warning("alsa_pcm_drop() failed: %s",
! snd_strerror(-err));
!
! if ((err = snd_pcm_close(alsa_pcm)) < 0)
! g_warning("alsa_pcm_close() failed: %s",
! snd_strerror(-err));
! alsa_pcm = NULL;
! }
!
! if (mmap) {
! g_free(buffer);
! buffer = NULL;
!
! g_free(areas);
! areas = NULL;
! }
!
! xmms_convert_buffers_destroy(convertb);
! convertb = NULL;
! g_free(inputf);
! inputf = NULL;
! g_free(effectf);
! effectf = NULL;
!
! alsa_save_config();
!
! debug("Device closed");
! }
!
! static void alsa_reopen(struct snd_format *f)
! {
! unsigned int tmp = alsa_get_written_time();
!
! if (alsa_pcm != NULL)
! {
! snd_pcm_close(alsa_pcm);
! alsa_pcm = NULL;
! }
!
! if (mmap) {
! g_free(buffer);
! buffer = NULL;
!
! g_free(areas);
! areas = NULL;
! }
!
! if (alsa_setup(f) < 0)
! g_warning("Failed to reopen the audio device");
!
! alsa_total_written = tmp;
! snd_pcm_prepare(alsa_pcm);
! }
!
! void alsa_flush(int time)
! {
! alsa_total_written = (guint64) time * alsa_bps / 1000;
! }
!
static void parse_mixer_name(char *str, char **name, int *index)
{
char *end;
--- 113,121 ----
}
}
! /*
! * mixer stuff
! */
static void parse_mixer_name(char *str, char **name, int *index)
{
char *end;
***************
*** 337,343 ****
}
! snd_mixer_elem_t* alsa_get_mixer_elem(snd_mixer_t *mixer, char *name, int index)
{
snd_mixer_selem_id_t *selem_id;
snd_mixer_elem_t* elem;
--- 177,183 ----
}
! static snd_mixer_elem_t* alsa_get_mixer_elem(snd_mixer_t *mixer, char *name, int index)
{
snd_mixer_selem_id_t *selem_id;
snd_mixer_elem_t* elem;
***************
*** 353,359 ****
return elem;
}
! int alsa_setup_mixer(void)
{
char *name;
long int a, b;
--- 193,199 ----
return elem;
}
! static int alsa_setup_mixer(void)
{
char *name;
long int a, b;
***************
*** 406,411 ****
--- 246,260 ----
return 0;
}
+ static void alsa_cleanup_mixer(void)
+ {
+ pcm_element = NULL;
+ if (mixer) {
+ snd_mixer_close(mixer);
+ mixer = NULL;
+ }
+ }
+
void alsa_get_volume(int *l, int *r)
{
static gboolean first = TRUE;
***************
*** 461,485 ****
}
int alsa_get_output_time(void)
{
snd_pcm_sframes_t delay;
! ssize_t db = 0;
! if (!going)
return 0;
! if (!snd_pcm_delay(alsa_pcm, &delay))
! db = snd_pcm_frames_to_bytes(alsa_pcm, delay);
!
! if (db < alsa_total_written)
! return ((alsa_total_written - db) * 1000 / alsa_bps);
! return 0;
}
int alsa_get_written_time(void)
{
! return (alsa_total_written * 1000 / alsa_bps);
}
#define STEREO_ADJUST(type, type2, endian) \
--- 310,512 ----
}
+ /*
+ * audio stuff
+ */
+
+ int alsa_playing(void)
+ {
+ if (!going || paused || alsa_pcm == NULL)
+ return FALSE;
+
+ return(snd_pcm_state(alsa_pcm) == SND_PCM_STATE_RUNNING);
+ }
+
+
+ /* handle generic errors */
+ static int alsa_handle_error(int err)
+ {
+ switch (err) {
+ case -EPIPE: /* XRUN */
+ if (alsa_cfg.debug) {
+ snd_pcm_status_t *alsa_status;
+ snd_pcm_status_alloca(&alsa_status);
+ if (snd_pcm_status(alsa_pcm, alsa_status) < 0)
+ g_warning("xrun_recover(): snd_pcm_status() failed");
+ else {
+ printf("Status:\n");
+ snd_pcm_status_dump(alsa_status, logs);
+ }
+ }
+ return snd_pcm_prepare(alsa_pcm);
+
+ case -ESTRPIPE: /* suspend */
+ while ((err = snd_pcm_resume(alsa_pcm)) == -EAGAIN)
+ sleep(1); /* wait until suspend flag is released */
+ if (err < 0) {
+ g_warning("suspend_recover(): snd_pcm_resume() failed.");
+ return snd_pcm_prepare(alsa_pcm);
+ }
+ break;
+ }
+
+ return err;
+ }
+
+ /* update and get the available space on h/w buffer (in frames) */
+ static snd_pcm_sframes_t alsa_get_avail(void)
+ {
+ snd_pcm_sframes_t ret;
+
+ if (alsa_pcm == NULL)
+ return 0;
+
+ while ((ret = snd_pcm_avail_update(alsa_pcm)) < 0) {
+ ret = alsa_handle_error(ret);
+ if (ret < 0) {
+ g_warning("alsa_get_avail(): snd_pcm_avail_update() failed: %s",
+ snd_strerror(-ret));
+ return 0;
+ }
+ }
+ return ret;
+ }
+
+ /* do pause operation */
+ static void alsa_do_pause(gboolean p)
+ {
+ if (paused == p)
+ return;
+
+ if (alsa_pcm) {
+ if (alsa_can_pause) {
+ snd_pcm_pause(alsa_pcm, p);
+ } else if (p) {
+ snd_pcm_drop(alsa_pcm);
+ snd_pcm_prepare(alsa_pcm);
+ }
+ }
+ paused = p;
+ }
+
+ void alsa_pause(short p)
+ {
+ debug("alsa_pause");
+ pause_request = p;
+ }
+
+ /* close PCM and release associated resources */
+ static void alsa_close_pcm(void)
+ {
+ if (alsa_pcm) {
+ int err;
+ snd_pcm_drop(alsa_pcm);
+ if ((err = snd_pcm_close(alsa_pcm)) < 0)
+ g_warning("alsa_pcm_close() failed: %s",
+ snd_strerror(-err));
+ alsa_pcm = NULL;
+ }
+ }
+
+ /* reopen ALSA PCM */
+ static int alsa_reopen(struct snd_format *f)
+ {
+ /* remember the current position */
+ output_time_offset += (alsa_hw_written * 1000) / outputf->bps;
+ alsa_hw_written = 0;
+
+ alsa_close_pcm();
+
+ return alsa_setup(f);
+ }
+
+ /* do flush (drop) operation */
+ static void alsa_do_flush(int time)
+ {
+ if (alsa_pcm) {
+ snd_pcm_drop(alsa_pcm);
+ snd_pcm_prepare(alsa_pcm);
+ }
+ /* correct the offset */
+ output_time_offset = time;
+ alsa_total_written = (guint64) time * inputf->bps / 1000;
+ rd_index = wr_index = alsa_hw_written = 0;
+ }
+
+ void alsa_flush(int time)
+ {
+ flush_request = time;
+ while (flush_request != -1)
+ xmms_usleep(10000);
+ }
+
+ void alsa_close(void)
+ {
+ if (! going)
+ return;
+
+ debug("Closing device");
+
+ going = 0;
+
+ pthread_join(audio_thread, NULL);
+
+ alsa_cleanup_mixer();
+
+ xmms_convert_buffers_destroy(convertb);
+ convertb = NULL;
+ g_free(inputf);
+ inputf = NULL;
+ g_free(effectf);
+ effectf = NULL;
+ g_free(outputf);
+ outputf = NULL;
+
+ alsa_save_config();
+
+ if (alsa_cfg.debug)
+ snd_output_close(logs);
+ debug("Device closed");
+ }
+
+ /* return the size of audio data filled in the audio thread buffer */
+ static int get_thread_buffer_filled(void)
+ {
+ int filled = wr_index - rd_index;
+ if (filled >= 0)
+ return filled;
+ return thread_buffer_size + filled;
+ }
+
+ /* get the free space on buffer */
+ int alsa_free(void)
+ {
+ return thread_buffer_size - get_thread_buffer_filled() - 1;
+ }
+
int alsa_get_output_time(void)
{
snd_pcm_sframes_t delay;
! guint64 bytes = 0;
! if (!going || alsa_pcm == NULL)
return 0;
! if (!snd_pcm_delay(alsa_pcm, &delay)) {
! bytes = snd_pcm_frames_to_bytes(alsa_pcm, delay);
! if (alsa_hw_written < bytes)
! bytes = 0;
! else
! bytes = alsa_hw_written - bytes;
! }
! return output_time_offset + (bytes * 1000) / outputf->bps;
}
int alsa_get_written_time(void)
{
! if (!going)
! return 0;
! return (alsa_total_written * 1000) / inputf->bps;
}
#define STEREO_ADJUST(type, type2, endian) \
***************
*** 584,636 ****
}
! void alsa_write(gpointer data, int length)
{
! EffectPlugin *ep;
if (paused)
return;
! force_start = FALSE;
!
! if (effects_enabled() && (ep = get_current_effect_plugin()))
! {
! int new_freq = inputf->rate;
! int new_chn = inputf->channels;
! AFormat f = inputf->xmms_format;
! if (ep->query_format)
! {
! ep->query_format(&f, &new_freq, &new_chn);
!
! if (f != effectf->xmms_format ||
! new_freq != effectf->rate ||
! new_chn != effectf->channels)
! {
! debug("Changing audio format for effect plugin");
!
! g_free(effectf);
! effectf = snd_format_from_xmms(f, new_freq,
! new_chn);
! alsa_reopen(effectf);
! }
!
! }
length = ep->mod_samples(&data, length,
inputf->xmms_format,
inputf->rate,
inputf->channels);
}
- else if (effectf)
- {
- g_free(effectf);
- effectf = NULL;
- effectf = snd_format_from_xmms(inputf->xmms_format,
- inputf->rate,
- inputf->channels);
- alsa_reopen(inputf);
- }
if (alsa_convert_func != NULL)
length = alsa_convert_func(convertb, &data, length);
--- 611,657 ----
}
! /* transfer data to audio h/w; length is given in bytes
! *
! * data can be modified via effect plugin, rate conversion or
! * software volume before passed to audio h/w
! */
! static void alsa_do_write(gpointer data, int length)
{
! EffectPlugin *ep = NULL;
! int new_freq;
! int new_chn;
! AFormat f;
if (paused)
return;
! new_freq = inputf->rate;
! new_chn = inputf->channels;
! f = inputf->xmms_format;
! if (effects_enabled() && (ep = get_current_effect_plugin()) &&
! ep->query_format)
! ep->query_format(&f, &new_freq, &new_chn);
+ if (f != effectf->xmms_format || new_freq != effectf->rate ||
+ new_chn != effectf->channels) {
+ debug("Changing audio format for effect plugin");
+ g_free(effectf);
+ effectf = snd_format_from_xmms(f, new_freq, new_chn);
+ if (alsa_reopen(effectf) < 0) {
+ /* fatal error... */
+ alsa_close();
+ return;
+ }
+ }
+
+ if (ep) {
length = ep->mod_samples(&data, length,
inputf->xmms_format,
inputf->rate,
inputf->channels);
}
if (alsa_convert_func != NULL)
length = alsa_convert_func(convertb, &data, length);
***************
*** 644,656 ****
if (alsa_cfg.soft_volume)
volume_adjust(data, length, outputf->xmms_format, outputf->channels);
! if (mmap)
! alsa_mmap_audio(data, length);
! else
! alsa_write_audio(data, length);
}
! static void alsa_write_audio(gpointer data, int length)
{
snd_pcm_sframes_t written_frames;
--- 665,693 ----
if (alsa_cfg.soft_volume)
volume_adjust(data, length, outputf->xmms_format, outputf->channels);
! alsa_write_audio(data, length);
}
! /* write callback */
! void alsa_write(gpointer data, int length)
! {
! int cnt;
! char *src = (char *)data;
!
! alsa_total_written += length;
! while (length > 0) {
! int wr;
! cnt = MIN(length, thread_buffer_size - wr_index);
! memcpy(thread_buffer + wr_index, src, cnt);
! wr = (wr_index + cnt) % thread_buffer_size;
! wr_index = wr;
! length -= cnt;
! src += cnt;
! }
! }
!
! /* transfer data to audio h/w via normal write */
! static void alsa_write_audio(char *data, int length)
{
snd_pcm_sframes_t written_frames;
***************
*** 663,735 ****
{
int written = snd_pcm_frames_to_bytes(alsa_pcm,
written_frames);
- alsa_total_written += written;
length -= written;
! data = (char*) data + written;
}
! else if (written_frames == -EPIPE)
! xrun_recover();
! else
! {
! g_warning("alsa_write_audio(): write error: %s",
! snd_strerror(-written_frames));
! break;
}
}
}
! static void alsa_mmap_audio(char *data, int length)
{
! int cnt = 0, err;
! snd_pcm_uframes_t offset, frames, frame;
! const snd_pcm_channel_area_t *chan_areas = areas;
! int channel_offset = 0, channel;
! ssize_t sample_size, offset_bytes, step;
!
! alsa_get_avail();
! while (length > 0)
! {
! frames = snd_pcm_bytes_to_frames(alsa_pcm, length);
! if ((err = snd_pcm_mmap_begin(alsa_pcm, &chan_areas, &offset, &frames) < 0))
! g_warning("alsa_mmap_audio(): snd_pcm_mmap_begin() "
! "failed: %s", snd_strerror(-err));
!
! cnt = snd_pcm_frames_to_bytes(alsa_pcm, frames);
!
! sample_size = snd_pcm_samples_to_bytes(alsa_pcm, 1);
! step = chan_areas[0].step / 8;
! offset_bytes = offset * step;
! for (frame = 0; frame < frames; frame++)
! {
! for (channel = 0; channel < outputf->channels; channel++)
! {
! char *ptr = chan_areas[channel].addr;
! memcpy(ptr + chan_areas[channel].first / 8 +
! offset_bytes,
! data + channel_offset, sample_size);
! channel_offset += sample_size;
}
! offset_bytes += step;
}
-
- err = snd_pcm_mmap_commit(alsa_pcm, offset, frames);
- if (err == -EPIPE)
- xrun_recover();
- else if (err < 0)
- g_warning("alsa_mmap_audio(): snd_pcm_mmap_commit() "
- "failed: %s", snd_strerror(-err));
- else if (err != frames)
- g_warning("alsa_mmap_audio(): snd_pcm_mmap_commit "
- "returned %d, expected %d", err, (int)frames);
-
- alsa_total_written += cnt;
-
- length -= cnt;
}
}
int alsa_open(AFormat fmt, int rate, int nch)
{
debug("Opening device");
--- 700,785 ----
{
int written = snd_pcm_frames_to_bytes(alsa_pcm,
written_frames);
length -= written;
! data += written;
! alsa_hw_written += written;
}
! else {
! int err = alsa_handle_error((int)written_frames);
! if (err < 0) {
! g_warning("alsa_write_audio(): write error: %s",
! snd_strerror(-err));
! break;
! }
}
}
}
! /* transfer audio data from thread buffer to h/w */
! static void alsa_write_out_thread_data(void)
{
! gint length, cnt, avail;
! length = MIN(hw_period_size_in, get_thread_buffer_filled());
! avail = snd_pcm_frames_to_bytes(alsa_pcm, alsa_get_avail());
! length = MIN(length, avail);
! while (length > 0) {
! int rd;
! cnt = MIN(length, thread_buffer_size - rd_index);
! alsa_do_write(thread_buffer + rd_index, cnt);
! rd = (rd_index + cnt) % thread_buffer_size;
! rd_index = rd;
! length -= cnt;
! }
! }
! /* audio thread loop */
! /* FIXME: proper lock? */
! static void *alsa_loop(void *arg)
! {
! int npfds = snd_pcm_poll_descriptors_count(alsa_pcm);
! struct pollfd *pfds;
! unsigned short *revents;
!
! if (npfds <= 0)
! goto _error;
! pfds = alloca(sizeof(*pfds) * npfds);
! revents = alloca(sizeof(*revents) * npfds);
! while (going && alsa_pcm) {
! if (! paused && get_thread_buffer_filled() > hw_period_size_in) {
! snd_pcm_poll_descriptors(alsa_pcm, pfds, npfds);
! if (poll(pfds, npfds, 10) > 0) {
! /* need to check revents. poll() with dmix returns
! * a postive value even if no data is available
! */
! int i;
! snd_pcm_poll_descriptors_revents(alsa_pcm, pfds, npfds, revents);
! for (i = 0; i < npfds; i++)
! if (revents[i] & POLLOUT) {
! alsa_write_out_thread_data();
! break;
! }
}
! } else
! xmms_usleep(10000);
!
! if (pause_request != paused)
! alsa_do_pause(pause_request);
!
! if (flush_request != -1) {
! alsa_do_flush(flush_request);
! flush_request = -1;
}
}
+
+ _error:
+ alsa_close_pcm();
+ g_free(thread_buffer);
+ thread_buffer = NULL;
+ pthread_exit(NULL);
}
+ /* open callback */
int alsa_open(AFormat fmt, int rate, int nch)
{
debug("Opening device");
***************
*** 739,746 ****
if (alsa_cfg.debug)
snd_output_stdio_attach(&logs, stdout, 0);
- mmap = alsa_cfg.mmap;
-
if (alsa_setup(inputf) < 0)
{
alsa_close();
--- 789,794 ----
***************
*** 751,763 ****
convertb = xmms_convert_buffers_new();
! alsa_total_written = 0;
going = TRUE;
paused = FALSE;
- force_start = FALSE;
-
- snd_pcm_prepare(alsa_pcm);
return 1;
}
--- 799,823 ----
convertb = xmms_convert_buffers_new();
! output_time_offset = 0;
! alsa_total_written = alsa_hw_written = 0;
going = TRUE;
paused = FALSE;
+ thread_buffer_size = (guint64)alsa_cfg.thread_buffer_time * inputf->bps / 1000;
+ if (thread_buffer_size < hw_buffer_size)
+ thread_buffer_size = hw_buffer_size * 2;
+ if (thread_buffer_size < 8192)
+ thread_buffer_size = 8192;
+ thread_buffer_size += hw_buffer_size;
+ thread_buffer_size -= thread_buffer_size % hw_period_size;
+ thread_buffer = g_malloc0(thread_buffer_size);
+ wr_index = rd_index = 0;
+ pause_request = FALSE;
+ flush_request = -1;
+
+ pthread_create(&audio_thread, NULL, alsa_loop, NULL);
+
return 1;
}
***************
*** 787,792 ****
--- 847,854 ----
f->rate = rate;
f->channels = channels;
+ f->sample_bits = snd_pcm_format_physical_width(f->format);
+ f->bps = (rate * f->sample_bits * channels) >> 3;
return f;
}
***************
*** 806,812 ****
int err;
snd_pcm_hw_params_t *hwparams;
snd_pcm_sw_params_t *swparams;
! int alsa_buffer_time, bits_per_sample;
unsigned int alsa_period_time;
snd_pcm_uframes_t alsa_buffer_size, alsa_period_size;
--- 868,874 ----
int err;
snd_pcm_hw_params_t *hwparams;
snd_pcm_sw_params_t *swparams;
! int alsa_buffer_time;
unsigned int alsa_period_time;
snd_pcm_uframes_t alsa_buffer_size, alsa_period_size;
***************
*** 816,824 ****
alsa_stereo_convert_func = NULL;
alsa_frequency_convert_func = NULL;
! outputf = snd_format_from_xmms(effectf->xmms_format,
! effectf->rate,
! effectf->channels);
debug("Opening device: %s", alsa_cfg.pcm_device);
/* FIXME: Can snd_pcm_open() return EAGAIN? */
--- 878,885 ----
alsa_stereo_convert_func = NULL;
alsa_frequency_convert_func = NULL;
! g_free(outputf);
! outputf = snd_format_from_xmms(f->xmms_format, f->rate, f->channels);
debug("Opening device: %s", alsa_cfg.pcm_device);
/* FIXME: Can snd_pcm_open() return EAGAIN? */
***************
*** 829,838 ****
g_warning("alsa_setup(): Failed to open pcm device (%s): %s",
alsa_cfg.pcm_device, snd_strerror(-err));
alsa_pcm = NULL;
return -1;
}
- snd_pcm_nonblock(alsa_pcm, FALSE);
if (alsa_cfg.debug)
{
snd_pcm_info_t *info;
--- 890,903 ----
g_warning("alsa_setup(): Failed to open pcm device (%s): %s",
alsa_cfg.pcm_device, snd_strerror(-err));
alsa_pcm = NULL;
+ g_free(outputf);
+ outputf = NULL;
return -1;
}
+ /* doesn't care about non-blocking */
+ /* snd_pcm_nonblock(alsa_pcm, 0); */
+
if (alsa_cfg.debug)
{
snd_pcm_info_t *info;
***************
*** 856,872 ****
return -1;
}
! if (mmap &&
! (err = snd_pcm_hw_params_set_access(alsa_pcm, hwparams,
! SND_PCM_ACCESS_MMAP_INTERLEAVED)) < 0)
! {
! g_message("alsa_setup(): Cannot set mmap'ed mode: %s. "
! "falling back to direct write", snd_strerror(-err));
! mmap = 0;
! }
!
! if (!mmap &&
! (err = snd_pcm_hw_params_set_access(alsa_pcm, hwparams,
SND_PCM_ACCESS_RW_INTERLEAVED)) < 0)
{
g_warning("alsa_setup(): Cannot set direct write mode: %s",
--- 921,927 ----
return -1;
}
! if ((err = snd_pcm_hw_params_set_access(alsa_pcm, hwparams,
SND_PCM_ACCESS_RW_INTERLEAVED)) < 0)
{
g_warning("alsa_setup(): Cannot set direct write mode: %s",
***************
*** 894,910 ****
break;
}
}
! if (outputf->format != effectf->format)
{
outputf->xmms_format =
format_from_alsa(outputf->format);
debug("Converting format from %d to %d",
! effectf->xmms_format, outputf->xmms_format);
if (outputf->xmms_format < 0)
return -1;
alsa_convert_func =
xmms_convert_get_func(outputf->xmms_format,
! effectf->xmms_format);
if (alsa_convert_func == NULL)
return -1;
}
--- 949,965 ----
break;
}
}
! if (outputf->format != f->format)
{
outputf->xmms_format =
format_from_alsa(outputf->format);
debug("Converting format from %d to %d",
! f->xmms_format, outputf->xmms_format);
if (outputf->xmms_format < 0)
return -1;
alsa_convert_func =
xmms_convert_get_func(outputf->xmms_format,
! f->xmms_format);
if (alsa_convert_func == NULL)
return -1;
}
***************
*** 918,931 ****
}
snd_pcm_hw_params_set_channels_near(alsa_pcm, hwparams, &outputf->channels);
! if (outputf->channels != effectf->channels)
{
debug("Converting channels from %d to %d",
! effectf->channels, outputf->channels);
alsa_stereo_convert_func =
xmms_convert_get_channel_func(outputf->xmms_format,
outputf->channels,
! effectf->channels);
if (alsa_stereo_convert_func == NULL)
return -1;
}
--- 973,986 ----
}
snd_pcm_hw_params_set_channels_near(alsa_pcm, hwparams, &outputf->channels);
! if (outputf->channels != f->channels)
{
debug("Converting channels from %d to %d",
! f->channels, outputf->channels);
alsa_stereo_convert_func =
xmms_convert_get_channel_func(outputf->xmms_format,
outputf->channels,
! f->channels);
if (alsa_stereo_convert_func == NULL)
return -1;
}
***************
*** 936,945 ****
g_warning("alsa_setup(): No usable samplerate available.");
return -1;
}
! if (outputf->rate != effectf->rate)
{
debug("Converting samplerate from %d to %d",
! effectf->rate, outputf->rate);
alsa_frequency_convert_func =
xmms_convert_get_frequency_func(outputf->xmms_format,
outputf->channels);
--- 991,1000 ----
g_warning("alsa_setup(): No usable samplerate available.");
return -1;
}
! if (outputf->rate != f->rate)
{
debug("Converting samplerate from %d to %d",
! f->rate, outputf->rate);
alsa_frequency_convert_func =
xmms_convert_get_frequency_func(outputf->xmms_format,
outputf->channels);
***************
*** 947,960 ****
return -1;
}
! alsa_buffer_time = alsa_cfg.buffer_time * 1000;
! if ((err = snd_pcm_hw_params_set_buffer_time_near(alsa_pcm, hwparams,
! &alsa_buffer_time, 0)) < 0)
! {
! g_warning("alsa_setup(): Set buffer time failed: %s.",
! snd_strerror(-err));
! return -1;
! }
alsa_period_time = alsa_cfg.period_time * 1000;
if ((err = snd_pcm_hw_params_set_period_time_near(alsa_pcm, hwparams,
--- 1002,1009 ----
return -1;
}
! outputf->sample_bits = snd_pcm_format_physical_width(outputf->format);
! outputf->bps = (outputf->rate * outputf->sample_bits * outputf->channels) >> 3;
alsa_period_time = alsa_cfg.period_time * 1000;
if ((err = snd_pcm_hw_params_set_period_time_near(alsa_pcm, hwparams,
***************
*** 965,970 ****
--- 1014,1028 ----
return -1;
}
+ alsa_buffer_time = alsa_cfg.buffer_time * 1000;
+ if ((err = snd_pcm_hw_params_set_buffer_time_near(alsa_pcm, hwparams,
+ &alsa_buffer_time, 0)) < 0)
+ {
+ g_warning("alsa_setup(): Set buffer time failed: %s.",
+ snd_strerror(-err));
+ return -1;
+ }
+
if (snd_pcm_hw_params(alsa_pcm, hwparams) < 0)
{
if (alsa_cfg.debug)
***************
*** 1011,1037 ****
snd_pcm_dump(alsa_pcm, logs);
}
! bits_per_sample = snd_pcm_format_physical_width(outputf->format);
! alsa_bps = (outputf->rate * bits_per_sample * outputf->channels) >> 3;
!
! if (mmap)
! {
! int chn;
! buffer = g_malloc(alsa_period_size * bits_per_sample / 8 * outputf->channels);
! areas = g_malloc0(outputf->channels * sizeof(snd_pcm_channel_area_t));
!
! for (chn = 0; chn < outputf->channels; chn++)
! {
! areas[chn].addr = buffer;
! areas[chn].first = chn * bits_per_sample;
! areas[chn].step = outputf->channels * bits_per_sample;
! }
}
debug("Device setup: buffer time: %i, size: %i.", alsa_buffer_time,
! snd_pcm_frames_to_bytes(alsa_pcm, alsa_buffer_size));
debug("bits per sample: %i; frame size: %i; Bps: %i",
! bits_per_sample, snd_pcm_frames_to_bytes(alsa_pcm, 1), alsa_bps);
return 0;
}
--- 1069,1096 ----
snd_pcm_dump(alsa_pcm, logs);
}
! hw_buffer_size = snd_pcm_frames_to_bytes(alsa_pcm, alsa_buffer_size);
! hw_period_size = snd_pcm_frames_to_bytes(alsa_pcm, alsa_period_size);
! if (inputf->bps != outputf->bps) {
! int align = (inputf->sample_bits * inputf->channels) / 8;
! hw_buffer_size_in = ((guint64)hw_buffer_size * inputf->bps +
! outputf->bps/2) / outputf->bps;
! hw_period_size_in = ((guint64)hw_period_size * inputf->bps +
! outputf->bps/2) / outputf->bps;
! hw_buffer_size_in -= hw_buffer_size_in % align;
! hw_period_size_in -= hw_period_size_in % align;
! } else {
! hw_buffer_size_in = hw_buffer_size;
! hw_period_size_in = hw_period_size;
}
debug("Device setup: buffer time: %i, size: %i.", alsa_buffer_time,
! hw_buffer_size);
! debug("Device setup: period time: %i, size: %i.", alsa_period_time,
! hw_period_size);
debug("bits per sample: %i; frame size: %i; Bps: %i",
! snd_pcm_format_physical_width(outputf->format),
! snd_pcm_frames_to_bytes(alsa_pcm, 1), outputf->bps);
return 0;
}
diff -rc xmms-1.2.10-orig/Output/alsa/configure.c xmms-1.2.10/Output/alsa/configure.c
*** xmms-1.2.10-orig/Output/alsa/configure.c 2004-01-28 00:09:39.000000000 +0100
--- xmms-1.2.10/Output/alsa/configure.c 2006-01-27 00:28:49.000000000 +0100
***************
*** 20,27 ****
#include <stdio.h>
static GtkWidget *configure_win = NULL;
! static GtkWidget *buffer_time_spin, *period_time_spin;
! static GtkWidget *mmap_button, *mixer_card_spin, *softvolume_toggle_button;
static GtkWidget *devices_combo, *mixer_devices_combo;
--- 20,27 ----
#include <stdio.h>
static GtkWidget *configure_win = NULL;
! static GtkWidget *buffer_time_spin, *period_time_spin, *thread_buffer_time_spin;
! static GtkWidget *mixer_card_spin, *softvolume_toggle_button;
static GtkWidget *devices_combo, *mixer_devices_combo;
***************
*** 36,42 ****
alsa_cfg.pcm_device = GET_CHARS(GTK_COMBO(devices_combo)->entry);
alsa_cfg.buffer_time = GET_SPIN_INT(buffer_time_spin);
alsa_cfg.period_time = GET_SPIN_INT(period_time_spin);
! alsa_cfg.mmap = GET_TOGGLE(mmap_button);
alsa_cfg.soft_volume = GET_TOGGLE(softvolume_toggle_button);
alsa_cfg.mixer_card = GET_SPIN_INT(mixer_card_spin);
alsa_cfg.mixer_device = GET_CHARS(GTK_COMBO(mixer_devices_combo)->entry);
--- 36,42 ----
alsa_cfg.pcm_device = GET_CHARS(GTK_COMBO(devices_combo)->entry);
alsa_cfg.buffer_time = GET_SPIN_INT(buffer_time_spin);
alsa_cfg.period_time = GET_SPIN_INT(period_time_spin);
! alsa_cfg.thread_buffer_time = GET_SPIN_INT(thread_buffer_time_spin);
alsa_cfg.soft_volume = GET_TOGGLE(softvolume_toggle_button);
alsa_cfg.mixer_card = GET_SPIN_INT(mixer_card_spin);
alsa_cfg.mixer_device = GET_CHARS(GTK_COMBO(mixer_devices_combo)->entry);
***************
*** 51,57 ****
xmms_cfg_write_int(cfgfile, "ALSA", "buffer_time", alsa_cfg.buffer_time);
xmms_cfg_write_int(cfgfile, "ALSA", "period_time", alsa_cfg.period_time);
! xmms_cfg_write_boolean(cfgfile,"ALSA","mmap",alsa_cfg.mmap);
xmms_cfg_write_string(cfgfile,"ALSA","pcm_device", alsa_cfg.pcm_device);
xmms_cfg_write_int(cfgfile, "ALSA", "mixer_card", alsa_cfg.mixer_card);
xmms_cfg_write_string(cfgfile,"ALSA","mixer_device", alsa_cfg.mixer_device);
--- 51,57 ----
xmms_cfg_write_int(cfgfile, "ALSA", "buffer_time", alsa_cfg.buffer_time);
xmms_cfg_write_int(cfgfile, "ALSA", "period_time", alsa_cfg.period_time);
! xmms_cfg_write_int(cfgfile, "ALSA", "thread_buffer_time", alsa_cfg.thread_buffer_time);
xmms_cfg_write_string(cfgfile,"ALSA","pcm_device", alsa_cfg.pcm_device);
xmms_cfg_write_int(cfgfile, "ALSA", "mixer_card", alsa_cfg.mixer_card);
xmms_cfg_write_string(cfgfile,"ALSA","mixer_device", alsa_cfg.mixer_device);
***************
*** 212,219 ****
GtkWidget *dev_vbox, *adevice_frame, *adevice_box;
GtkWidget *mixer_frame, *mixer_box, *mixer_card_box;
GtkWidget *buffer_frame, *buffer_vbox, *buffer_table;
! GtkWidget *buffer_time_label, *period_time_label;
! GtkObject *buffer_time_adj, *period_time_adj, *mixer_card_adj;
GtkWidget *bbox, *ok, *cancel;
if (configure_win)
--- 212,219 ----
GtkWidget *dev_vbox, *adevice_frame, *adevice_box;
GtkWidget *mixer_frame, *mixer_box, *mixer_card_box;
GtkWidget *buffer_frame, *buffer_vbox, *buffer_table;
! GtkWidget *buffer_time_label, *period_time_label, *thread_buffer_time_label;
! GtkObject *buffer_time_adj, *period_time_adj, *thread_buffer_time_adj, *mixer_card_adj;
GtkWidget *bbox, *ok, *cancel;
if (configure_win)
***************
*** 312,318 ****
gtk_container_set_border_width(GTK_CONTAINER(buffer_vbox), 5);
! buffer_table = gtk_table_new(2, 2, FALSE);
gtk_table_set_row_spacings(GTK_TABLE(buffer_table), 5);
gtk_table_set_col_spacings(GTK_TABLE(buffer_table), 5);
gtk_box_pack_start(GTK_BOX(buffer_vbox), buffer_table, FALSE, FALSE, 0);
--- 312,318 ----
gtk_container_set_border_width(GTK_CONTAINER(buffer_vbox), 5);
! buffer_table = gtk_table_new(2, 3, FALSE);
gtk_table_set_row_spacings(GTK_TABLE(buffer_table), 5);
gtk_table_set_col_spacings(GTK_TABLE(buffer_table), 5);
gtk_box_pack_start(GTK_BOX(buffer_vbox), buffer_table, FALSE, FALSE, 0);
***************
*** 345,354 ****
gtk_table_attach(GTK_TABLE(buffer_table), period_time_spin,
1, 2, 1, 2, 0, 0, 0, 0);
! mmap_button = gtk_check_button_new_with_label(_("Mmap mode"));
! gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(mmap_button),
! alsa_cfg.mmap);
! gtk_box_pack_start(GTK_BOX(buffer_vbox), mmap_button, FALSE, FALSE, 0);
gtk_notebook_append_page(GTK_NOTEBOOK(notebook), buffer_frame,
gtk_label_new(_("Advanced settings")));
--- 345,363 ----
gtk_table_attach(GTK_TABLE(buffer_table), period_time_spin,
1, 2, 1, 2, 0, 0, 0, 0);
! thread_buffer_time_label = gtk_label_new(_("Thread buffer time (ms):"));
! gtk_label_set_justify(GTK_LABEL(thread_buffer_time_label), GTK_JUSTIFY_LEFT);
! gtk_misc_set_alignment(GTK_MISC(thread_buffer_time_label), 0, 0.5);
! gtk_table_attach(GTK_TABLE(buffer_table), thread_buffer_time_label,
! 0, 1, 2, 3, GTK_FILL, 0, 0, 0);
! thread_buffer_time_adj = gtk_adjustment_new(alsa_cfg.thread_buffer_time,
! 1000, 1000000, 100, 100, 100);
! thread_buffer_time_spin = gtk_spin_button_new(GTK_ADJUSTMENT(thread_buffer_time_adj),
! 8, 0);
!
! gtk_widget_set_usize(thread_buffer_time_spin, 60, -1);
! gtk_table_attach(GTK_TABLE(buffer_table), thread_buffer_time_spin,
! 1, 2, 2, 3, 0, 0, 0, 0);
gtk_notebook_append_page(GTK_NOTEBOOK(notebook), buffer_frame,
gtk_label_new(_("Advanced settings")));
diff -rc xmms-1.2.10-orig/Output/alsa/init.c xmms-1.2.10/Output/alsa/init.c
*** xmms-1.2.10-orig/Output/alsa/init.c 2004-01-11 17:27:26.000000000 +0100
--- xmms-1.2.10/Output/alsa/init.c 2006-01-27 00:28:49.000000000 +0100
***************
*** 29,36 ****
memset(&alsa_cfg, 0, sizeof (alsa_cfg));
alsa_cfg.buffer_time = 500;
alsa_cfg.period_time = 50;
alsa_cfg.debug = 0;
- alsa_cfg.mmap = 1;
alsa_cfg.vol.left = 100;
alsa_cfg.vol.right = 100;
--- 29,36 ----
memset(&alsa_cfg, 0, sizeof (alsa_cfg));
alsa_cfg.buffer_time = 500;
alsa_cfg.period_time = 50;
+ alsa_cfg.thread_buffer_time = 3000;
alsa_cfg.debug = 0;
alsa_cfg.vol.left = 100;
alsa_cfg.vol.right = 100;
***************
*** 44,51 ****
xmms_cfg_read_int(cfgfile, "ALSA", "mixer_card", &alsa_cfg.mixer_card);
xmms_cfg_read_int(cfgfile, "ALSA", "buffer_time", &alsa_cfg.buffer_time);
xmms_cfg_read_int(cfgfile, "ALSA", "period_time", &alsa_cfg.period_time);
! xmms_cfg_read_boolean(cfgfile, "ALSA", "mmap", &alsa_cfg.mmap);
! xmms_cfg_read_int(cfgfile, "ALSA", "period_time", &alsa_cfg.period_time);
xmms_cfg_read_boolean(cfgfile, "ALSA", "soft_volume",
&alsa_cfg.soft_volume);
xmms_cfg_read_int(cfgfile, "ALSA", "volume_left", &alsa_cfg.vol.left);
--- 44,50 ----
xmms_cfg_read_int(cfgfile, "ALSA", "mixer_card", &alsa_cfg.mixer_card);
xmms_cfg_read_int(cfgfile, "ALSA", "buffer_time", &alsa_cfg.buffer_time);
xmms_cfg_read_int(cfgfile, "ALSA", "period_time", &alsa_cfg.period_time);
! xmms_cfg_read_int(cfgfile, "ALSA", "thread_buffer_time", &alsa_cfg.thread_buffer_time);
xmms_cfg_read_boolean(cfgfile, "ALSA", "soft_volume",
&alsa_cfg.soft_volume);
xmms_cfg_read_int(cfgfile, "ALSA", "volume_left", &alsa_cfg.vol.left);
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