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authorDave Camp <campd@src.gnome.org>2004-01-06 21:52:39 +0000
committerDave Camp <campd@src.gnome.org>2004-01-06 21:52:39 +0000
commitebee7d61a54cc79965c0133c4e63d6a7a00eb1d2 (patch)
tree35ddcddb0bcf9c1d0ea0e425fc5c0d5a1f494d9e /components/music/esd-audio.c
parentbd6e1847ced6fc5f041f5a05c108290a450c8c05 (diff)
downloadnautilus-NAUTILUS_EXTENSIONS_BRANCH_AFTER_MERGE_1.tar.gz
Diffstat (limited to 'components/music/esd-audio.c')
-rw-r--r--components/music/esd-audio.c444
1 files changed, 0 insertions, 444 deletions
diff --git a/components/music/esd-audio.c b/components/music/esd-audio.c
deleted file mode 100644
index 7ab6e6fc4..000000000
--- a/components/music/esd-audio.c
+++ /dev/null
@@ -1,444 +0,0 @@
-
-#include <config.h>
-#include "esd-audio.h"
-
-#include <glib/gmem.h>
-#include <glib/gstrfuncs.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static gint fd = 0;
-static gpointer buffer;
-static gboolean going = FALSE, prebuffer, paused = FALSE, remove_prebuffer = FALSE;
-static gint buffer_size, prebuffer_size, blk_size = 4096;
-static gint rd_index = 0, wr_index = 0;
-static gint output_time_offset = 0;
-static guint64 written = 0, output_bytes = 0;
-static gint bps, ebps;
-static gint flush;
-static gint channels, frequency, latency;
-static AFormat format;
-static esd_format_t esd_format;
-static gint input_bps, input_format, input_frequency, input_channels;
-static gchar *hostname;
-static pthread_t buffer_thread;
-static void *(*esd_translate)(void *, gint);
-
-
-ESDConfig esd_cfg;
-esd_info_t *all_info;
-esd_player_info_t *player_info;
-
-static void
-esdout_init (void)
-{
- memset (&esd_cfg, 0, sizeof (ESDConfig));
- esd_cfg.port = ESD_DEFAULT_PORT;
- esd_cfg.buffer_size = 3000;
- esd_cfg.prebuffer = 25;
-}
-
-static gint
-get_latency(void)
-{
- int fd, amount = 0;
-
-#ifndef HAVE_ESD_GET_LATENCY
- esd_server_info_t *info;
-#endif
-
- fd = esd_open_sound (hostname);
- if (fd == -1) {
- return 0;
- }
-
-#ifdef HAVE_ESD_GET_LATENCY
- amount = esd_get_latency(fd);
-#else
- info = esd_get_server_info(fd);
- if (info) {
- if (info->format & ESD_STEREO) {
- if (info->format & ESD_BITS16)
- amount = (44100 * (ESD_BUF_SIZE + 64)) / info->rate;
- else
- amount = (44100 * (ESD_BUF_SIZE + 128)) / info->rate;
- } else {
- if (info->format & ESD_BITS16)
- amount = (2 * 44100 * (ESD_BUF_SIZE + 128)) / info->rate;
- else
- amount = (2 * 44100 * (ESD_BUF_SIZE + 256)) / info->rate;
- }
- free(info);
- }
- amount += ESD_BUF_SIZE * 2;
-#endif
- esd_close (fd);
- return amount;
-}
-
-static void *
-esd_stou8(void *data, gint length)
-{
- int len = length;
- unsigned char *dat = (unsigned char *)data;
- while (len-- > 0)
- *dat++ ^= 0x80;
- return data;
-}
-
-static void *esd_utos16sw(void *data, gint length)
-{
- int len = length;
- short *dat = data;
- while ( len > 0 ) {
- *dat = GUINT16_SWAP_LE_BE( *dat ) ^ 0x8000;
- dat++;
- len-=2;
- }
- return data;
-}
-
-static void *esd_utos16(void *data, gint length)
-{
- int len = length;
- short *dat = data;
- while ( len > 0 ) {
- *dat ^= 0x8000;
- dat++;
- len-=2;
- }
- return data;
-}
-
-static void *esd_16sw(void *data, gint length)
-{
- int len = length;
- short *dat = data;
- while ( len > 0 ) {
- *dat = GUINT16_SWAP_LE_BE( *dat );
- dat++;
- len-=2;
- }
- return data;
-}
-
-static void
-esdout_setup_format (AFormat fmt, gint rate, gint nch)
-{
- gboolean swap_sign = FALSE;
- gboolean swap_16 = FALSE;
-
- format = fmt;
- frequency = rate;
- channels = nch;
- switch (fmt)
- {
- case FMT_S8:
- swap_sign = TRUE;
- case FMT_U8:
- esd_format = ESD_BITS8;
- break;
- case FMT_U16_LE:
- case FMT_U16_BE:
- case FMT_U16_NE:
- swap_sign = TRUE;
- case FMT_S16_LE:
- case FMT_S16_BE:
- case FMT_S16_NE:
- esd_format = ESD_BITS16;
- break;
- }
-
-#ifdef WORDS_BIGENDIAN
- if (fmt == FMT_U16_LE || fmt == FMT_S16_LE)
-#else
- if (fmt == FMT_U16_BE || fmt == FMT_S16_BE)
-#endif
- swap_16 = TRUE;
-
- esd_translate = (void*(*)())NULL;
- if (esd_format == ESD_BITS8) {
- if (swap_sign == TRUE)
- esd_translate = esd_stou8;
- } else {
- if (swap_sign == TRUE) {
- if (swap_16 == TRUE)
- esd_translate = esd_utos16sw;
- else
- esd_translate = esd_utos16;
- } else {
- if (swap_16 == TRUE)
- esd_translate = esd_16sw;
- }
- }
-
- bps = rate * nch;
- if (esd_format == ESD_BITS16)
- bps *= 2;
- if(nch == 1)
- esd_format |= ESD_MONO;
- else
- esd_format |= ESD_STEREO;
- esd_format |= ESD_STREAM | ESD_PLAY;
-
- latency = ((get_latency() * frequency) / 44100) * channels;
- if (format != FMT_U8 && format != FMT_S8)
- latency *= 2;
-}
-
-
-gint
-esdout_get_written_time (void)
-{
- if (!going)
- return 0;
- return (gint) ((written * 1000) / input_bps);
-}
-
-gint
-esdout_get_output_time (void)
-{
- guint64 bytes;
-
- if (!fd || !going) {
- return 0;
- }
-
- bytes = output_bytes;
- if (!paused) {
- bytes -= (bytes < (guint64)latency ? bytes : (guint64)latency);
- }
-
- return output_time_offset + (gint) ((bytes * 1000) / ebps);
-}
-
-/* Returns the number of bytes in our buffer still to be sent to esd. */
-gint
-esdout_used (void)
-{
- if (wr_index >= rd_index) {
- return wr_index - rd_index;
- }
- return buffer_size - (rd_index - wr_index);
-}
-
-/* Returns TRUE if we can play a track, i.e. we can connect to esd. */
-int
-esdout_can_play (void)
-{
- int fd;
-
- fd = esd_open_sound (hostname);
- if (fd == -1) {
- return FALSE;
- }
- esd_close (fd);
-
- return TRUE;
-}
-
-/* Returns TRUE if we are playing a track, i.e. the thread is still streaming
- data to esd. */
-int
-esdout_playing (void)
-{
- /* If our thread is not streaming data to esd, return FALSE. */
- if (!going)
- return FALSE;
-
- /* If we've run out of data to send, we assume the track is done. */
- if (esdout_used () == 0)
- return FALSE;
-
- return TRUE;
-}
-
-gint
-esdout_free (void)
-{
- if (remove_prebuffer && prebuffer) {
- prebuffer = FALSE;
- remove_prebuffer = FALSE;
- }
-
- if (prebuffer) {
- remove_prebuffer = TRUE;
- }
-
- if (rd_index > wr_index) {
- return (rd_index - wr_index) - 1;
- }
-
- return (buffer_size - (wr_index - rd_index)) - 1;
-}
-
-static void
-esdout_write_audio (gpointer data, gint length)
-{
- AFormat new_format;
- gint new_frequency,new_channels;
-
- new_format = input_format;
- new_frequency = input_frequency;
- new_channels = input_channels;
-
- if (new_format != format || new_frequency != frequency || new_channels != channels) {
- output_time_offset += (gint) ((output_bytes * 1000) / ebps);
- output_bytes = 0;
- esdout_setup_format(new_format, new_frequency, new_channels);
- frequency = new_frequency;
- channels = new_channels;
- close(fd);
- esdout_set_audio_params();
- }
-
- if (esd_translate) {
- output_bytes += write(fd,esd_translate(data,length),length);
- } else {
- output_bytes += write(fd,data,length);
- }
-}
-
-
-void
-esdout_write (gpointer ptr, gint length)
-{
- gint cnt, off = 0;
-
- remove_prebuffer = FALSE;
-
- written += length;
- while (length > 0) {
- cnt = MIN(length, buffer_size - wr_index);
- memcpy((gchar *)buffer + wr_index, (gchar *)ptr + off, cnt);
- wr_index = (wr_index + cnt) % buffer_size;
- length -= cnt;
- off += cnt;
-
- }
-}
-
-void
-esdout_close (void)
-{
- if (!going) {
- return;
- }
-
- wr_index = 0;
- rd_index = 0;
- going = 0;
- g_free (hostname);
- hostname = NULL;
- pthread_join (buffer_thread, NULL);
-}
-
-void
-esdout_flush (gint time)
-{
- flush = time;
- while (flush != -1) {
- usleep(10000);
- }
-}
-
-void
-esdout_pause (gboolean p)
-{
- paused = p;
-}
-
-static void *
-esdout_loop (void *arg)
-{
- gint length, cnt;
-
- while (going) {
- if (esdout_used () > prebuffer_size) {
- prebuffer = FALSE;
- }
-
- if (esdout_used () > 0 && !paused && !prebuffer) {
- length = MIN (blk_size, esdout_used ());
- while (length > 0) {
- cnt = MIN(length,buffer_size-rd_index);
- esdout_write_audio ((gchar *)buffer + rd_index, cnt);
- rd_index=(rd_index+cnt)%buffer_size;
- length-=cnt;
- }
- } else {
- usleep (10000);
- }
-
- if (flush != -1) {
- output_time_offset = flush;
- written = (guint64)(flush / 10) * (guint64)(input_bps / 100);
- rd_index = wr_index = output_bytes = 0;
- flush = -1;
- prebuffer = TRUE;
- }
- }
-
- close (fd);
- g_free (buffer);
- pthread_exit (NULL);
- return NULL; /* make gcc happy */
-}
-
-void
-esdout_set_audio_params(void)
-{
- /* frequency = GUINT16_SWAP_LE_BE( frequency ); */
- fd = esd_play_stream (esd_format, frequency, hostname, "nautilus-music-view");
- ebps = frequency * channels;
- if (format == FMT_U16_BE || format == FMT_U16_LE || format == FMT_S16_BE || format == FMT_S16_LE || format == FMT_S16_NE || format == FMT_U16_NE)
- ebps *= 2;
-}
-
-gint
-esdout_open (AFormat fmt, gint rate, gint nch)
-{
- esdout_init ();
-
- esdout_setup_format (fmt,rate,nch);
-
- input_format = format;
- input_channels = channels;
- input_frequency = frequency;
- input_bps = bps;
-
- buffer_size = (esd_cfg.buffer_size * input_bps) / 1000;
- if (buffer_size < 8192)
- buffer_size = 8192;
- prebuffer_size = (buffer_size * esd_cfg.prebuffer) / 100;
- if (buffer_size - prebuffer_size < 4096)
- prebuffer_size = buffer_size - 4096;
-
- buffer = g_malloc0(buffer_size);
-
- flush = -1;
- prebuffer = 1;
- wr_index = rd_index = output_time_offset = written = output_bytes = 0;
- paused = FALSE;
- remove_prebuffer = FALSE;
-
- if (hostname)
- g_free (hostname);
- if (esd_cfg.use_remote)
- hostname = g_strdup_printf("%s:%d", esd_cfg.server, esd_cfg.port);
- else
- hostname = NULL;
-
- esdout_set_audio_params ();
- if (fd == -1) {
- g_free(buffer);
- return 0;
- }
- going = 1;
-
- pthread_create (&buffer_thread, NULL, esdout_loop, NULL);
-
- return 1;
-}