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More refactoring osssrc has more features now, like query/convert etc

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Original commit message from CVS:
More refactoring
osssrc has more features now, like query/convert etc
This commit is contained in:
Wim Taymans 2002-12-07 20:54:47 +00:00
parent f5743b63de
commit 4682001013
6 changed files with 628 additions and 550 deletions
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358
sys/oss/gstosscommon.c
View file

@ -21,10 +21,19 @@
*/
#include "gstosscommon.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/soundcard.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
gboolean
#include <config.h>
#include "gstosscommon.h"
static gboolean
gst_ossformat_get (gint law, gint endianness, gboolean sign, gint width, gint depth,
gint *format, gint *bps)
{
@ -89,3 +98,348 @@ gst_ossformat_get (gint law, gint endianness, gboolean sign, gint width, gint de
return TRUE;
}
void
gst_osscommon_init (GstOssCommon *common)
{
common->device = g_strdup ("/dev/dsp");
common->fd = -1;
common->law = 0;
common->endianness = G_BYTE_ORDER;
common->sign = TRUE;
common->width = 16;
common->depth = 16;
common->channels = 2;
common->rate = 44100;
common->fragment = 6;
common->bps = 0;
/* AFMT_*_BE not available on all OSS includes (e.g. FBSD) */
#ifdef WORDS_BIGENDIAN
common->format = AFMT_S16_BE;
#else
common->format = AFMT_S16_LE;
#endif /* WORDS_BIGENDIAN */
}
gboolean
gst_osscommon_parse_caps (GstOssCommon *common, GstCaps *caps)
{
gint bps, format;
gst_caps_get_int (caps, "width", &common->width);
gst_caps_get_int (caps, "depth", &common->depth);
if (common->width != common->depth)
return FALSE;
gst_caps_get_int (caps, "law", &common->law);
gst_caps_get_int (caps, "endianness", &common->endianness);
gst_caps_get_boolean (caps, "signed", &common->sign);
if (!gst_ossformat_get (common->law, common->endianness, common->sign,
common->width, common->depth, &format, &bps))
{
GST_DEBUG (GST_CAT_PLUGIN_INFO, "could not get format");
return FALSE;
}
gst_caps_get_int (caps, "channels", &common->channels);
gst_caps_get_int (caps, "rate", &common->rate);
common->bps = bps * common->channels * common->rate;
common->format = format;
return TRUE;
}
#define GET_FIXED_INT(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_caps_get_int (caps, name, dest); \
} G_STMT_END
#define GET_FIXED_BOOLEAN(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_caps_get_boolean (caps, name, dest); \
} G_STMT_END
gboolean
gst_osscommon_merge_fixed_caps (GstOssCommon *common, GstCaps *caps)
{
gint bps, format;
/* peel off fixed stuff from the caps */
GET_FIXED_INT (caps, "law", &common->law);
GET_FIXED_INT (caps, "endianness", &common->endianness);
GET_FIXED_BOOLEAN (caps, "signed", &common->sign);
GET_FIXED_INT (caps, "width", &common->width);
GET_FIXED_INT (caps, "depth", &common->depth);
if (!gst_ossformat_get (common->law, common->endianness, common->sign,
common->width, common->depth, &format, &bps))
{
return FALSE;
}
GET_FIXED_INT (caps, "rate", &common->rate);
GET_FIXED_INT (caps, "channels", &common->channels);
common->bps = bps * common->channels * common->rate;
common->format = format;
return TRUE;
}
gboolean
gst_osscommon_sync_parms (GstOssCommon *common)
{
audio_buf_info space;
int frag;
gint target_format;
gint target_channels;
gint target_rate;
gint fragscale, frag_ln;
if (common->fd == -1)
return FALSE;
if (common->fragment >> 16)
frag = common->fragment;
else
frag = 0x7FFF0000 | common->fragment;
GST_INFO (GST_CAT_PLUGIN_INFO,
"common: setting sound card to %dHz %d format %s (%08x fragment)",
common->rate, common->format,
(common->channels == 2) ? "stereo" : "mono", frag);
ioctl (common->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
ioctl (common->fd, SNDCTL_DSP_RESET, 0);
target_format = common->format;
target_channels = common->channels;
target_rate = common->rate;
ioctl (common->fd, SNDCTL_DSP_SETFMT, &common->format);
ioctl (common->fd, SNDCTL_DSP_CHANNELS, &common->channels);
ioctl (common->fd, SNDCTL_DSP_SPEED, &common->rate);
ioctl (common->fd, SNDCTL_DSP_GETBLKSIZE, &common->fragment_size);
if (common->mode == GST_OSSCOMMON_WRITE) {
ioctl (common->fd, SNDCTL_DSP_GETOSPACE, &space);
}
else {
ioctl (common->fd, SNDCTL_DSP_GETISPACE, &space);
}
/* calculate new fragment using a poor man's logarithm function */
fragscale = 1;
frag_ln = 0;
while (fragscale < space.fragsize) {
fragscale <<= 1;
frag_ln++;
}
common->fragment = space.fragstotal << 16 | frag_ln;
GST_INFO (GST_CAT_PLUGIN_INFO,
"common: set sound card to %dHz, %d format, %s "
"(%d bytes buffer, %08x fragment)",
common->rate, common->format,
(common->channels == 2) ? "stereo" : "mono",
space.bytes, common->fragment);
common->fragment_time = (GST_SECOND * common->fragment_size) / common->bps;
GST_INFO (GST_CAT_PLUGIN_INFO, "fragment time %u %llu\n",
common->bps, common->fragment_time);
if (target_format != common->format ||
target_channels != common->channels ||
target_rate != common->rate)
{
g_warning ("couldn't set requested OSS parameters, enjoy the noise :)");
/* we could eventually return FALSE here, or just do some additional tests
* to see that the frequencies don't differ too much etc.. */
}
return TRUE;
}
gboolean
gst_osscommon_open_audio (GstOssCommon *common, GstOssOpenMode mode, gchar **error)
{
gint caps;
g_return_val_if_fail (common->fd == -1, FALSE);
GST_INFO (GST_CAT_PLUGIN_INFO, "common: attempting to open sound device");
/* first try to open the sound card */
/* FIXME: this code is dubious, why do we need to open and close this ?*/
if (mode == GST_OSSCOMMON_WRITE) {
common->fd = open (common->device, O_WRONLY | O_NONBLOCK);
if (errno == EBUSY) {
g_warning ("osscommon: unable to open the sound device (in use ?)\n");
}
if (common->fd >= 0)
close (common->fd);
/* re-open the sound device in blocking mode */
common->fd = open (common->device, O_WRONLY);
}
else {
common->fd = open (common->device, O_RDONLY);
}
if (common->fd < 0) {
switch (errno) {
case EISDIR:
*error = g_strdup_printf ("osscommon: Device %s is a directory",
common->device);
break;
case EACCES:
case ETXTBSY:
*error = g_strdup_printf ( "osscommon: Cannot access %s, check permissions",
common->device);
break;
case ENXIO:
case ENODEV:
case ENOENT:
*error = g_strdup_printf ("osscommon: Cannot access %s, does it exist ?",
common->device);
break;
case EROFS:
*error = g_strdup_printf ("osscommon: Cannot access %s, read-only filesystem ?",
common->device);
default:
/* FIXME: strerror is not threadsafe */
*error = g_strdup_printf ("osscommon: Cannot open %s, generic error: %s",
common->device, strerror (errno));
break;
}
return FALSE;
}
common->mode = mode;
/* we have it, set the default parameters and go have fun */
/* set card state */
ioctl (common->fd, SNDCTL_DSP_GETCAPS, &caps);
GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Capabilities %08x", caps);
if (caps & DSP_CAP_DUPLEX) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Full duplex");
if (caps & DSP_CAP_REALTIME) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Realtime");
if (caps & DSP_CAP_BATCH) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Batch");
if (caps & DSP_CAP_COPROC) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Has coprocessor");
if (caps & DSP_CAP_TRIGGER) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Trigger");
if (caps & DSP_CAP_MMAP) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Direct access");
#ifdef DSP_CAP_MULTI
if (caps & DSP_CAP_MULTI) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Multiple open");
#endif /* DSP_CAP_MULTI */
#ifdef DSP_CAP_BIND
if (caps & DSP_CAP_BIND) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Channel binding");
#endif /* DSP_CAP_BIND */
ioctl(common->fd, SNDCTL_DSP_GETFMTS, &caps);
GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: Formats %08x", caps);
if (caps & AFMT_MU_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: MU_LAW");
if (caps & AFMT_A_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: A_LAW");
if (caps & AFMT_IMA_ADPCM) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: IMA_ADPCM");
if (caps & AFMT_U8) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: U8");
if (caps & AFMT_S16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: S16_LE");
if (caps & AFMT_S16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: S16_BE");
if (caps & AFMT_S8) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: S8");
if (caps & AFMT_U16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: U16_LE");
if (caps & AFMT_U16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: U16_BE");
if (caps & AFMT_MPEG) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: MPEG");
#ifdef AFMT_AC3
if (caps & AFMT_AC3) GST_INFO (GST_CAT_PLUGIN_INFO, "osscommon: AC3");
#endif
GST_INFO (GST_CAT_PLUGIN_INFO,
"osscommon: opened audio (%s) with fd=%d", common->device, common->fd);
common->caps = caps;
return TRUE;
}
void
gst_osscommon_close_audio (GstOssCommon *common)
{
if (common->fd < 0)
return;
close(common->fd);
common->fd = -1;
}
gboolean
gst_osscommon_convert (GstOssCommon *common, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
gboolean res = TRUE;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
if (common->bps == 0 || common->channels == 0 || common->width == 0)
return FALSE;
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*dest_value = src_value * GST_SECOND / common->bps;
break;
case GST_FORMAT_UNITS:
*dest_value = src_value / (common->channels * common->width);
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_BYTES;
case GST_FORMAT_BYTES:
*dest_value = src_value * common->bps / GST_SECOND;
break;
case GST_FORMAT_UNITS:
*dest_value = src_value * common->rate / GST_SECOND;
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_UNITS:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*dest_value = src_value * GST_SECOND / common->rate;
break;
case GST_FORMAT_BYTES:
*dest_value = src_value * common->channels * common->width;
break;
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
}

55
sys/oss/gstosscommon.h
View file

@ -20,12 +20,57 @@
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSSFORMAT_H__
#define __GST_OSSFORMAT_H__
#ifndef __GST_OSSCOMMON_H__
#define __GST_OSSCOMMON_H__
#include <gst/gst.h>
gboolean gst_ossformat_get (gint law, gint endianness, gboolean sign,
gint width, gint depth, gint *format, gint *bps);
typedef struct _GstOssCommon GstOssCommon;
#endif /* __GST_OSSFORMAT_H__ */
typedef enum {
GST_OSSCOMMON_READ,
GST_OSSCOMMON_WRITE,
} GstOssOpenMode;
struct _GstOssCommon
{
gchar *device;
/* device state */
int fd;
int caps; /* the capabilities */
gint format;
gint fragment;
guint64 fragment_time;
gint fragment_size;
GstOssOpenMode mode;
/* stats */
guint bps;
/* parameters */
gint law;
gint endianness;
gboolean sign;
gint width;
gint depth;
gint channels;
gint rate;
};
void gst_osscommon_init (GstOssCommon *common);
gboolean gst_osscommon_open_audio (GstOssCommon *common,
GstOssOpenMode mode, gchar **error);
void gst_osscommon_close_audio (GstOssCommon *common);
gboolean gst_osscommon_parse_caps (GstOssCommon *common, GstCaps *caps);
gboolean gst_osscommon_merge_fixed_caps (GstOssCommon *common, GstCaps *caps);
gboolean gst_osscommon_sync_parms (GstOssCommon *common);
gboolean gst_osscommon_convert (GstOssCommon *common,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
#endif /* __GST_OSSCOMMON_H__ */

381
sys/oss/gstosssink.c
View file

@ -20,18 +20,10 @@
* Boston, MA 02111-1307, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/soundcard.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <gstosssink.h>
#include <gstosscommon.h>
/* elementfactory information */
static GstElementDetails gst_osssink_details = {
@ -49,9 +41,6 @@ static void gst_osssink_class_init (GstOssSinkClass *klass);
static void gst_osssink_init (GstOssSink *osssink);
static void gst_osssink_finalize (GObject *object);
static gboolean gst_osssink_open_audio (GstOssSink *sink);
static void gst_osssink_close_audio (GstOssSink *sink);
static gboolean gst_osssink_sync_parms (GstOssSink *osssink);
static GstElementStateReturn gst_osssink_change_state (GstElement *element);
static void gst_osssink_set_clock (GstElement *element, GstClock *clock);
static GstClock* gst_osssink_get_clock (GstElement *element);
@ -163,7 +152,7 @@ gst_osssink_finalize (GObject *object)
{
GstOssSink *osssink = (GstOssSink *) object;
g_free (osssink->device);
g_free (osssink->common.device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -227,19 +216,9 @@ gst_osssink_init (GstOssSink *osssink)
gst_pad_set_chain_function (osssink->sinkpad, gst_osssink_chain);
osssink->device = g_strdup ("/dev/dsp");
osssink->fd = -1;
osssink->channels = 1;
osssink->frequency = 11025;
osssink->fragment = 6;
/* AFMT_*_BE not available on all OSS includes (e.g. FBSD) */
#ifdef WORDS_BIGENDIAN
osssink->format = AFMT_S16_BE;
#else
osssink->format = AFMT_S16_LE;
#endif /* WORDS_BIGENDIAN */
gst_osscommon_init (&osssink->common);
osssink->bufsize = 4096;
osssink->bps = 0;
osssink->resync = FALSE;
osssink->sync = TRUE;
osssink->sinkpool = NULL;
@ -254,141 +233,32 @@ gst_osssink_init (GstOssSink *osssink)
static GstPadConnectReturn
gst_osssink_sinkconnect (GstPad *pad, GstCaps *caps)
{
gint law, endianness, width, depth, bps;
gboolean sign;
gint format = -1;
GstOssSink *osssink = GST_OSSSINK (gst_pad_get_parent (pad));
if (!GST_CAPS_IS_FIXED (caps))
return GST_PAD_CONNECT_DELAYED;
gst_caps_get_int (caps, "width", &width);
gst_caps_get_int (caps, "depth", &depth);
if (width != depth)
if (!gst_osscommon_parse_caps (&osssink->common, caps))
return GST_PAD_CONNECT_REFUSED;
osssink->width = width;
/* laws 1 and 2 are 1 bps anyway */
osssink->bps = 1;
gst_caps_get_int (caps, "law", &law);
gst_caps_get_int (caps, "endianness", &endianness);
gst_caps_get_boolean (caps, "signed", &sign);
if (!gst_ossformat_get (law, endianness, sign,
width, depth, &format, &bps))
{
GST_DEBUG (GST_CAT_PLUGIN_INFO, "could not get format");
return GST_PAD_CONNECT_REFUSED;
}
osssink->bps = bps;
osssink->format = format;
gst_caps_get_int (caps, "channels", &osssink->channels);
gst_caps_get_int (caps, "rate", &osssink->frequency);
osssink->bps *= osssink->channels;
osssink->bps *= osssink->frequency;
if (!gst_osssink_sync_parms (osssink)) {
if (!gst_osscommon_sync_parms (&osssink->common)) {
return GST_PAD_CONNECT_REFUSED;
}
return GST_PAD_CONNECT_OK;
}
static gboolean
gst_osssink_sync_parms (GstOssSink *osssink)
{
audio_buf_info ospace;
int frag;
gint target_format;
gint target_channels;
gint target_frequency;
GObject *object;
gint fragscale, frag_ln;
g_return_val_if_fail (osssink != NULL, FALSE);
g_return_val_if_fail (GST_IS_OSSSINK (osssink), FALSE);
if (osssink->fd == -1)
return FALSE;
if (osssink->fragment >> 16)
frag = osssink->fragment;
else
frag = 0x7FFF0000 | osssink->fragment;
GST_INFO (GST_CAT_PLUGIN_INFO,
"osssink: setting sound card to %dHz %d format %s (%08x fragment)",
osssink->frequency, osssink->format,
(osssink->channels == 2) ? "stereo" : "mono", frag);
ioctl (osssink->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
target_format = osssink->format;
target_channels = osssink->channels;
target_frequency = osssink->frequency;
ioctl (osssink->fd, SNDCTL_DSP_SETFMT, &osssink->format);
ioctl (osssink->fd, SNDCTL_DSP_CHANNELS, &osssink->channels);
ioctl (osssink->fd, SNDCTL_DSP_SPEED, &osssink->frequency);
ioctl (osssink->fd, SNDCTL_DSP_GETBLKSIZE, &osssink->fragment_size);
ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
/* calculate new fragment using a poor man's logarithm function */
fragscale = 1;
frag_ln = 0;
while (fragscale < ospace.fragsize) {
fragscale <<= 1;
frag_ln++;
}
osssink->fragment = ospace.fragstotal << 16 | frag_ln;
GST_INFO (GST_CAT_PLUGIN_INFO,
"osssink: set sound card to %dHz %d format %s "
"(%d bytes buffer, %08x fragment)",
osssink->frequency, osssink->format,
(osssink->channels == 2) ? "stereo" : "mono",
ospace.bytes, osssink->fragment);
object = G_OBJECT (osssink);
g_object_freeze_notify (object);
g_object_notify (object, "fragment");
g_object_thaw_notify (object);
osssink->fragment_time = (GST_SECOND * osssink->fragment_size) / osssink->bps;
GST_INFO (GST_CAT_PLUGIN_INFO, "fragment time %u %llu\n",
osssink->bps, osssink->fragment_time);
if (target_format != osssink->format ||
target_channels != osssink->channels ||
target_frequency != osssink->frequency)
{
g_warning ("couldn't set requested OSS parameters, enjoy the noise :)");
/* we could eventually return FALSE here, or just do some additional tests
* to see that the frequencies don't differ too much etc.. */
}
return TRUE;
}
static inline gint64
gst_osssink_get_delay (GstOssSink *osssink)
{
gint delay = 0;
if (osssink->fd == -1)
if (osssink->common.fd == -1)
return 0;
if (ioctl (osssink->fd, SNDCTL_DSP_GETODELAY, &delay) < 0) {
if (ioctl (osssink->common.fd, SNDCTL_DSP_GETODELAY, &delay) < 0) {
audio_buf_info info;
if (ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
if (ioctl (osssink->common.fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
delay = 0;
}
else {
@ -405,7 +275,7 @@ gst_osssink_get_time (GstClock *clock, gpointer data)
gint delay;
GstClockTime res;
if (!osssink->bps)
if (!osssink->common.bps)
return 0;
delay = gst_osssink_get_delay (osssink);
@ -416,7 +286,7 @@ gst_osssink_get_time (GstClock *clock, gpointer data)
if (((guint64)delay) > osssink->handled) {
delay = osssink->handled;
}
res = (osssink->handled - delay) * GST_SECOND / osssink->bps;
res = (osssink->handled - delay) * GST_SECOND / osssink->common.bps;
return res;
}
@ -455,7 +325,7 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
ioctl (osssink->fd, SNDCTL_DSP_SYNC);
ioctl (osssink->common.fd, SNDCTL_DSP_SYNC);
gst_oss_clock_set_active (osssink->provided_clock, FALSE);
gst_pad_event_default (pad, event);
return;
@ -466,7 +336,7 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
{
gint64 value;
ioctl (osssink->fd, SNDCTL_DSP_RESET);
ioctl (osssink->common.fd, SNDCTL_DSP_RESET);
if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &value)) {
if (!gst_clock_handle_discont (osssink->clock, value))
gst_oss_clock_set_active (osssink->provided_clock, FALSE);
@ -483,7 +353,7 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
return;
}
if (!osssink->bps) {
if (!osssink->common.bps) {
gst_buffer_unref (buf);
gst_element_error (GST_ELEMENT (osssink), "capsnego was never performed, unknown data type");
return;
@ -491,7 +361,7 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
buftime = GST_BUFFER_TIMESTAMP (buf);
if (osssink->fd >= 0) {
if (osssink->common.fd >= 0) {
if (!osssink->mute) {
guchar *data = GST_BUFFER_DATA (buf);
gint size = GST_BUFFER_SIZE (buf);
@ -502,7 +372,7 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
GstClockTimeDiff jitter;
delay = gst_osssink_get_delay (osssink);
queued = delay * GST_SECOND / osssink->bps;
queued = delay * GST_SECOND / osssink->common.bps;
if (osssink->resync && osssink->sync) {
gst_element_clock_wait (GST_ELEMENT (osssink), osssink->clock,
@ -510,14 +380,14 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
if (jitter >= 0) {
gst_clock_handle_discont (osssink->clock, buftime - queued + jitter);
write (osssink->fd, data, size);
write (osssink->common.fd, data, size);
gst_oss_clock_set_active (osssink->provided_clock, TRUE);
osssink->resync = FALSE;
osssink->handled += size;
}
}
else {
write (osssink->fd, data, size);
write (osssink->common.fd, data, size);
osssink->handled += size;
}
}
@ -525,10 +395,10 @@ gst_osssink_chain (GstPad *pad, GstBuffer *buf)
else {
audio_buf_info ospace;
ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
ioctl (osssink->common.fd, SNDCTL_DSP_GETOSPACE, &ospace);
if (ospace.bytes >= size) {
write (osssink->fd, data, size);
write (osssink->common.fd, data, size);
}
}
}
@ -552,68 +422,12 @@ static gboolean
gst_osssink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
gboolean res = TRUE;
GstOssSink *osssink;
if (src_format == *dest_format) {
*dest_value = src_value;
return TRUE;
}
osssink = GST_OSSSINK (gst_pad_get_parent (pad));
if (osssink->bps == 0 || osssink->channels == 0 || osssink->width == 0)
return FALSE;
switch (src_format) {
case GST_FORMAT_BYTES:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*dest_value = src_value * GST_SECOND / osssink->bps;
break;
case GST_FORMAT_UNITS:
*dest_value = src_value / (osssink->channels * osssink->width);
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_TIME:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_BYTES;
case GST_FORMAT_BYTES:
*dest_value = src_value * osssink->bps / GST_SECOND;
break;
case GST_FORMAT_UNITS:
*dest_value = src_value * osssink->frequency / GST_SECOND;
break;
default:
res = FALSE;
}
break;
case GST_FORMAT_UNITS:
switch (*dest_format) {
case GST_FORMAT_DEFAULT:
*dest_format = GST_FORMAT_TIME;
case GST_FORMAT_TIME:
*dest_value = src_value * GST_SECOND / osssink->frequency;
break;
case GST_FORMAT_BYTES:
*dest_value = src_value * osssink->channels * osssink->width;
break;
default:
res = FALSE;
}
break;
default:
res = FALSE;
}
return res;
return gst_osscommon_convert (&osssink->common, src_format, src_value,
dest_format, dest_value);
}
static const GstPadQueryType*
@ -673,9 +487,6 @@ gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, G
{
GstOssSink *osssink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSSINK (object));
osssink = GST_OSSSINK (object);
switch (prop_id) {
@ -684,8 +495,8 @@ gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, G
get_property("device") should return the right one */
if (!GST_FLAG_IS_SET (osssink, GST_OSSSINK_OPEN))
{
g_free (osssink->device);
osssink->device = g_strdup (g_value_get_string (value));
g_free (osssink->common.device);
osssink->common.device = g_strdup (g_value_get_string (value));
g_object_notify (object, "device");
}
break;
@ -694,8 +505,8 @@ gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, G
g_object_notify (G_OBJECT (osssink), "mute");
break;
case ARG_FRAGMENT:
osssink->fragment = g_value_get_int (value);
gst_osssink_sync_parms (osssink);
osssink->common.fragment = g_value_get_int (value);
gst_osscommon_sync_parms (&osssink->common);
break;
case ARG_BUFFER_SIZE:
if (osssink->bufsize == g_value_get_int (value)) break;
@ -718,20 +529,17 @@ gst_osssink_get_property (GObject *object, guint prop_id, GValue *value, GParamS
{
GstOssSink *osssink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSSINK (object));
osssink = GST_OSSSINK (object);
switch (prop_id) {
case ARG_DEVICE:
g_value_set_string (value, osssink->device);
g_value_set_string (value, osssink->common.device);
break;
case ARG_MUTE:
g_value_set_boolean (value, osssink->mute);
break;
case ARG_FRAGMENT:
g_value_set_int (value, osssink->fragment);
g_value_set_int (value, osssink->common.fragment);
break;
case ARG_BUFFER_SIZE:
g_value_set_int (value, osssink->bufsize);
@ -745,132 +553,24 @@ gst_osssink_get_property (GObject *object, guint prop_id, GValue *value, GParamS
}
}
static gboolean
gst_osssink_open_audio (GstOssSink *sink)
{
gint caps;
g_return_val_if_fail (sink->fd == -1, FALSE);
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: attempting to open sound device");
/* first try to open the sound card */
/* FIXME: this code is dubious, why do we need to open and close this ?*/
sink->fd = open (sink->device, O_WRONLY | O_NONBLOCK);
if (errno == EBUSY) {
g_warning ("osssink: unable to open the sound device (in use ?)\n");
}
if (sink->fd >= 0)
close (sink->fd);
/* re-open the sound device in blocking mode */
sink->fd = open (sink->device, O_WRONLY);
if (sink->fd < 0) {
switch (errno) {
case EISDIR:
gst_element_error (GST_ELEMENT (sink),
"osssink: Device %s is a directory",
sink->device);
break;
case EACCES:
case ETXTBSY:
gst_element_error (GST_ELEMENT (sink),
"osssink: Cannot access %s, check permissions",
sink->device);
break;
case ENXIO:
case ENODEV:
case ENOENT:
gst_element_error (GST_ELEMENT (sink),
"osssink: Cannot access %s, does it exist ?",
sink->device);
break;
case EROFS:
gst_element_error (GST_ELEMENT (sink),
"osssink: Cannot access %s, read-only filesystem ?",
sink->device);
default:
/* FIXME: strerror is not threadsafe */
gst_element_error (GST_ELEMENT (sink),
"osssink: Cannot open %s, generic error: %s",
sink->device, strerror (errno));
break;
}
return FALSE;
}
/* we have it, set the default parameters and go have fun */
/* set card state */
ioctl (sink->fd, SNDCTL_DSP_GETCAPS, &caps);
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Capabilities %08x", caps);
if (caps & DSP_CAP_DUPLEX) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Full duplex");
if (caps & DSP_CAP_REALTIME) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Realtime");
if (caps & DSP_CAP_BATCH) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Batch");
if (caps & DSP_CAP_COPROC) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Has coprocessor");
if (caps & DSP_CAP_TRIGGER) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Trigger");
if (caps & DSP_CAP_MMAP) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Direct access");
#ifdef DSP_CAP_MULTI
if (caps & DSP_CAP_MULTI) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Multiple open");
#endif /* DSP_CAP_MULTI */
#ifdef DSP_CAP_BIND
if (caps & DSP_CAP_BIND) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Channel binding");
#endif /* DSP_CAP_BIND */
ioctl(sink->fd, SNDCTL_DSP_GETFMTS, &caps);
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Formats %08x", caps);
if (caps & AFMT_MU_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MU_LAW");
if (caps & AFMT_A_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: A_LAW");
if (caps & AFMT_IMA_ADPCM) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: IMA_ADPCM");
if (caps & AFMT_U8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U8");
if (caps & AFMT_S16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_LE");
if (caps & AFMT_S16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_BE");
if (caps & AFMT_S8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S8");
if (caps & AFMT_U16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_LE");
if (caps & AFMT_U16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_BE");
if (caps & AFMT_MPEG) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MPEG");
#ifdef AFMT_AC3
if (caps & AFMT_AC3) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: AC3");
#endif
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: opened audio (%s) with fd=%d", sink->device, sink->fd);
GST_FLAG_SET (sink, GST_OSSSINK_OPEN);
return TRUE;
}
static void
gst_osssink_close_audio (GstOssSink *sink)
{
if (sink->fd < 0) return;
close(sink->fd);
sink->fd = -1;
GST_FLAG_UNSET (sink, GST_OSSSINK_OPEN);
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: closed sound device");
}
static GstElementStateReturn
gst_osssink_change_state (GstElement *element)
{
GstOssSink *osssink;
g_return_val_if_fail (GST_IS_OSSSINK (element), FALSE);
osssink = GST_OSSSINK (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
if (!GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN)) {
if (!gst_osssink_open_audio (osssink)) {
gchar *error;
if (!gst_osscommon_open_audio (&osssink->common, GST_OSSCOMMON_WRITE, &error)) {
gst_element_error (GST_ELEMENT (osssink), error);
g_free (error);
return GST_STATE_FAILURE;
}
GST_FLAG_SET (element, GST_OSSSINK_OPEN);
}
break;
case GST_STATE_READY_TO_PAUSED:
@ -881,18 +581,23 @@ gst_osssink_change_state (GstElement *element)
case GST_STATE_PLAYING_TO_PAUSED:
{
if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
ioctl (osssink->common.fd, SNDCTL_DSP_RESET, 0);
gst_oss_clock_set_active (osssink->provided_clock, FALSE);
osssink->resync = TRUE;
break;
}
case GST_STATE_PAUSED_TO_READY:
if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
ioctl (osssink->common.fd, SNDCTL_DSP_RESET, 0);
gst_osscommon_init (&osssink->common);
break;
case GST_STATE_READY_TO_NULL:
if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
gst_osssink_close_audio (osssink);
if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN)) {
gst_osscommon_close_audio (&osssink->common);
GST_FLAG_UNSET (osssink, GST_OSSSINK_OPEN);
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: closed sound device");
}
break;
}

26
sys/oss/gstosssink.h
View file

@ -25,15 +25,12 @@
#define __GST_OSSSINK_H__
#include <config.h>
#include <gst/gst.h>
#include "gstosscommon.h"
#include "gstossclock.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
G_BEGIN_DECLS
#define GST_TYPE_OSSSINK \
(gst_osssink_get_type())
@ -67,23 +64,11 @@ struct _GstOssSink {
gboolean sync;
guint64 handled;
/* device */
gchar *device;
GstOssCommon common;
/* soundcard state */
int fd;
int caps; /* the capabilities */
gint format;
gint width;
gint channels;
gint frequency;
gint fragment;
gint fragment_size;
gboolean mute;
guint bufsize;
guint bps;
guint64 fragment_time;
};
struct _GstOssSinkClass {
@ -97,9 +82,6 @@ GType gst_osssink_get_type(void);
gboolean gst_osssink_factory_init(GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
G_END_DECLS
#endif /* __GST_OSSSINK_H__ */

328
sys/oss/gstosssrc.c
View file

@ -51,7 +51,8 @@ enum {
enum {
ARG_0,
ARG_DEVICE,
ARG_BYTESPERREAD,
ARG_BUFFERSIZE,
ARG_FRAGMENT,
};
GST_PAD_TEMPLATE_FACTORY (osssrc_src_factory,
@ -85,16 +86,23 @@ static void gst_osssrc_class_init (GstOssSrcClass *klass);
static void gst_osssrc_init (GstOssSrc *osssrc);
static GstPadConnectReturn gst_osssrc_srcconnect (GstPad *pad, GstCaps *caps);
static const GstFormat* gst_osssrc_get_formats (GstPad *pad);
static gboolean gst_osssrc_convert (GstPad *pad,
GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
static void gst_osssrc_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec);
static void gst_osssrc_get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec);
static GstElementStateReturn gst_osssrc_change_state (GstElement *element);
static gboolean gst_osssrc_send_event (GstElement *element, GstEvent *event);
static void gst_osssrc_close_audio (GstOssSrc *src);
static gboolean gst_osssrc_open_audio (GstOssSrc *src);
static gboolean gst_osssrc_sync_parms (GstOssSrc *osssrc);
static const GstEventMask* gst_osssrc_get_event_masks (GstPad *pad);
static gboolean gst_osssrc_src_event (GstPad *pad, GstEvent *event);
static gboolean gst_osssrc_send_event (GstElement *element, GstEvent *event);
static const GstPadQueryType* gst_osssrc_get_query_types (GstPad *pad);
static gboolean gst_osssrc_src_query (GstPad *pad, GstPadQueryType type,
GstFormat *format, gint64 *value);
static GstBuffer * gst_osssrc_get (GstPad *pad);
@ -134,12 +142,16 @@ gst_osssrc_class_init (GstOssSrcClass *klass)
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BYTESPERREAD,
g_param_spec_ulong("bytes_per_read","bytes_per_read","bytes_per_read",
0,G_MAXULONG,0,G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFFERSIZE,
g_param_spec_ulong ("buffersize","Buffer Size","The size of the buffers with samples",
0, G_MAXULONG, 0, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
g_param_spec_string("device","device","oss device (/dev/dspN usually)",
"default",G_PARAM_READWRITE));
g_param_spec_string ("device", "device", "oss device (/dev/dspN usually)",
"default", G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAGMENT,
g_param_spec_int ("fragment", "Fragment",
"The fragment as 0xMMMMSSSS (MMMM = total fragments, 2^SSSS = fragment size)",
0, G_MAXINT, 6, G_PARAM_READWRITE));
gobject_class->set_property = gst_osssrc_set_property;
gobject_class->get_property = gst_osssrc_get_property;
@ -155,25 +167,20 @@ gst_osssrc_init (GstOssSrc *osssrc)
GST_PAD_TEMPLATE_GET (osssrc_src_factory), "src");
gst_pad_set_get_function (osssrc->srcpad, gst_osssrc_get);
gst_pad_set_connect_function (osssrc->srcpad, gst_osssrc_srcconnect);
gst_pad_set_convert_function (osssrc->srcpad, gst_osssrc_convert);
gst_pad_set_formats_function (osssrc->srcpad, gst_osssrc_get_formats);
gst_pad_set_event_function (osssrc->srcpad, gst_osssrc_src_event);
gst_pad_set_event_mask_function (osssrc->srcpad, gst_osssrc_get_event_masks);
gst_pad_set_query_function (osssrc->srcpad, gst_osssrc_src_query);
gst_pad_set_query_type_function (osssrc->srcpad, gst_osssrc_get_query_types);
gst_element_add_pad (GST_ELEMENT (osssrc), osssrc->srcpad);
osssrc->device = g_strdup ("/dev/dsp");
osssrc->fd = -1;
gst_osscommon_init (&osssrc->common);
/* adding some default values */
osssrc->law = 0;
osssrc->endianness = G_BYTE_ORDER;
osssrc->sign = TRUE;
osssrc->depth = 16;
osssrc->width = 16;
osssrc->channels = 2;
osssrc->rate = 44100;
osssrc->need_eos = FALSE;
osssrc->bytes_per_read = 4096;
osssrc->buffersize = 4096;
osssrc->curoffset = 0;
osssrc->basetime = 0;
osssrc->samples_since_basetime = 0;
}
static GstPadConnectReturn
@ -186,29 +193,14 @@ gst_osssrc_srcconnect (GstPad *pad, GstCaps *caps)
if (!GST_CAPS_IS_FIXED (caps))
return GST_PAD_CONNECT_DELAYED;
gst_caps_get_int (caps, "law", &src->law);
gst_caps_get_int (caps, "endianness", &src->endianness);
gst_caps_get_boolean (caps, "signed", &src->sign);
gst_caps_get_int (caps, "width", &src->width);
gst_caps_get_int (caps, "depth", &src->depth);
gst_caps_get_int (caps, "rate", &src->rate);
gst_caps_get_int (caps, "channels", &src->channels);
if (!gst_osscommon_parse_caps (&src->common, caps))
return GST_PAD_CONNECT_REFUSED;
if (!gst_osssrc_sync_parms (src))
if (!gst_osscommon_sync_parms (&src->common))
return GST_PAD_CONNECT_REFUSED;
return GST_PAD_CONNECT_OK;
}
#define GET_FIXED_INT(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_caps_get_int (caps, name, dest); \
} G_STMT_END
#define GET_FIXED_BOOLEAN(caps, name, dest) \
G_STMT_START { \
if (gst_caps_has_fixed_property (caps, name)) \
gst_caps_get_boolean (caps, name, dest); \
} G_STMT_END
static gboolean
gst_osssrc_negotiate (GstPad *pad)
@ -220,16 +212,10 @@ gst_osssrc_negotiate (GstPad *pad)
allowed = gst_pad_get_allowed_caps (pad);
/* peel off fixed stuff from the allowed caps */
GET_FIXED_INT (allowed, "law", &src->law);
GET_FIXED_INT (allowed, "endianness", &src->endianness);
GET_FIXED_BOOLEAN (allowed, "signed", &src->sign);
GET_FIXED_INT (allowed, "width", &src->width);
GET_FIXED_INT (allowed, "depth", &src->depth);
GET_FIXED_INT (allowed, "rate", &src->rate);
GET_FIXED_INT (allowed, "channels", &src->channels);
if (!gst_osscommon_merge_fixed_caps (&src->common, allowed))
return FALSE;
if (!gst_osssrc_sync_parms (src))
if (!gst_osscommon_sync_parms (&src->common))
return FALSE;
/* set caps on src pad */
@ -238,13 +224,13 @@ gst_osssrc_negotiate (GstPad *pad)
"oss_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (src->law),
"endianness", GST_PROPS_INT (src->endianness),
"signed", GST_PROPS_BOOLEAN (src->sign),
"width", GST_PROPS_INT (src->width),
"depth", GST_PROPS_INT (src->depth),
"rate", GST_PROPS_INT (src->rate),
"channels", GST_PROPS_INT (src->channels)
"law", GST_PROPS_INT (src->common.law),
"endianness", GST_PROPS_INT (src->common.endianness),
"signed", GST_PROPS_BOOLEAN (src->common.sign),
"width", GST_PROPS_INT (src->common.width),
"depth", GST_PROPS_INT (src->common.depth),
"rate", GST_PROPS_INT (src->common.rate),
"channels", GST_PROPS_INT (src->common.channels)
)) <= 0)
{
return FALSE;
@ -258,7 +244,6 @@ gst_osssrc_get (GstPad *pad)
GstOssSrc *src;
GstBuffer *buf;
glong readbytes;
glong readsamples;
src = GST_OSSSRC(gst_pad_get_parent (pad));
@ -269,10 +254,10 @@ gst_osssrc_get (GstPad *pad)
return GST_BUFFER (gst_event_new (GST_EVENT_EOS));
}
buf = gst_buffer_new_and_alloc (src->bytes_per_read);
buf = gst_buffer_new_and_alloc (src->buffersize);
readbytes = read (src->fd,GST_BUFFER_DATA (buf),
src->bytes_per_read);
readbytes = read (src->common.fd,GST_BUFFER_DATA (buf),
src->buffersize);
if (readbytes == 0) {
gst_element_set_eos (GST_ELEMENT (src));
@ -286,16 +271,16 @@ gst_osssrc_get (GstPad *pad)
return NULL;
}
}
if (src->common.bps == 0) {
gst_element_error (GST_ELEMENT (src), "no format negotiated");
return NULL;
}
GST_BUFFER_SIZE (buf) = readbytes;
GST_BUFFER_OFFSET (buf) = src->curoffset;
GST_BUFFER_TIMESTAMP (buf) = src->basetime +
src->samples_since_basetime * GST_SECOND / src->rate;
GST_BUFFER_TIMESTAMP (buf) = src->curoffset * GST_SECOND / src->common.bps;
src->curoffset += readbytes;
readsamples = readbytes / src->channels;
if (src->width == 16) readsamples /= 2;
src->samples_since_basetime += readsamples;
GST_DEBUG (GST_CAT_PLUGIN_INFO, "pushed buffer from soundcard of %ld bytes, timestamp %lld",
readbytes, GST_BUFFER_TIMESTAMP (buf));
@ -308,19 +293,20 @@ gst_osssrc_set_property (GObject *object, guint prop_id, const GValue *value, GP
{
GstOssSrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSSRC (object));
src = GST_OSSSRC (object);
switch (prop_id) {
case ARG_BYTESPERREAD:
src->bytes_per_read = g_value_get_ulong (value);
case ARG_BUFFERSIZE:
src->buffersize = g_value_get_ulong (value);
break;
case ARG_DEVICE:
g_free(src->device);
src->device = g_strdup (g_value_get_string (value));
g_free(src->common.device);
src->common.device = g_strdup (g_value_get_string (value));
break;
case ARG_FRAGMENT:
src->common.fragment = g_value_get_int (value);
gst_osscommon_sync_parms (&src->common);
break;
default:
break;
}
@ -331,17 +317,17 @@ gst_osssrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSp
{
GstOssSrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSSRC (object));
src = GST_OSSSRC (object);
switch (prop_id) {
case ARG_BYTESPERREAD:
g_value_set_ulong (value, src->bytes_per_read);
case ARG_BUFFERSIZE:
g_value_set_ulong (value, src->buffersize);
break;
case ARG_DEVICE:
g_value_set_string (value, src->device);
g_value_set_string (value, src->common.device);
break;
case ARG_FRAGMENT:
g_value_set_int (value, src->common.fragment);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -361,8 +347,13 @@ gst_osssrc_change_state (GstElement *element)
break;
case GST_STATE_READY_TO_PAUSED:
if (!GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
if (!gst_osssrc_open_audio (osssrc))
gchar *error;
if (!gst_osscommon_open_audio (&osssrc->common, GST_OSSCOMMON_READ, &error)) {
gst_element_error (GST_ELEMENT (osssrc), error);
g_free (error);
return GST_STATE_FAILURE;
}
GST_FLAG_SET (osssrc, GST_OSSSRC_OPEN);
}
break;
case GST_STATE_PAUSED_TO_PLAYING:
@ -370,8 +361,11 @@ gst_osssrc_change_state (GstElement *element)
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
if (GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN))
gst_osssrc_close_audio (osssrc);
if (GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
gst_osscommon_close_audio (&osssrc->common);
GST_FLAG_UNSET (osssrc, GST_OSSSRC_OPEN);
}
gst_osscommon_init (&osssrc->common);
break;
case GST_STATE_READY_TO_NULL:
break;
@ -383,103 +377,117 @@ gst_osssrc_change_state (GstElement *element)
return GST_STATE_SUCCESS;
}
static gboolean
gst_osssrc_send_event (GstElement *element,
GstEvent *event)
static const GstFormat*
gst_osssrc_get_formats (GstPad *pad)
{
static const GstFormat formats[] = {
GST_FORMAT_TIME,
GST_FORMAT_UNITS,
GST_FORMAT_BYTES,
0
};
return formats;
}
static gboolean
gst_osssrc_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value)
{
gboolean retval = FALSE;
GstOssSrc *osssrc;
osssrc = GST_OSSSRC (element);
osssrc = GST_OSSSRC (gst_pad_get_parent (pad));
return gst_osscommon_convert (&osssrc->common, src_format, src_value,
dest_format, dest_value);
}
static const GstEventMask*
gst_osssrc_get_event_masks (GstPad *pad)
{
static const GstEventMask gst_osssrc_src_event_masks[] = {
{ GST_EVENT_EOS, 0 },
{ GST_EVENT_SIZE, 0 },
{ 0, }
};
return gst_osssrc_src_event_masks;
}
static gboolean
gst_osssrc_src_event (GstPad *pad, GstEvent *event)
{
GstOssSrc *osssrc;
gboolean retval = FALSE;
osssrc = GST_OSSSRC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
osssrc->need_eos = TRUE;
retval = TRUE;
break;
case GST_EVENT_SIZE:
{
GstFormat format;
gint64 value;
format = GST_FORMAT_BYTES;
/* convert to bytes */
if (gst_osscommon_convert (&osssrc->common,
GST_EVENT_SIZE_FORMAT (event),
GST_EVENT_SIZE_VALUE (event),
&format, &value))
{
osssrc->buffersize = GST_EVENT_SIZE_VALUE (event);
g_object_notify (G_OBJECT (osssrc), "buffersize");
retval = TRUE;
}
}
default:
break;
}
gst_event_unref (event);
return retval;
}
static gboolean
gst_osssrc_open_audio (GstOssSrc *src)
static gboolean
gst_osssrc_send_event (GstElement *element,
GstEvent *event)
{
g_return_val_if_fail (!GST_FLAG_IS_SET (src, GST_OSSSRC_OPEN), FALSE);
GstOssSrc *osssrc = GST_OSSSRC (element);
/* first try to open the sound card */
src->fd = open(src->device, O_RDONLY);
return gst_osssrc_src_event (osssrc->srcpad, event);
}
/* if we have it, set the default parameters and go have fun */
if (src->fd > 0) {
static const GstPadQueryType*
gst_osssrc_get_query_types (GstPad *pad)
{
static const GstPadQueryType query_types[] = {
GST_PAD_QUERY_POSITION,
0,
};
return query_types;
}
/* set card state */
GST_DEBUG (GST_CAT_PLUGIN_INFO,"opened audio: %s",src->device);
GST_FLAG_SET (src, GST_OSSSRC_OPEN);
return TRUE;
static gboolean
gst_osssrc_src_query (GstPad *pad, GstPadQueryType type, GstFormat *format, gint64 *value)
{
gboolean res = FALSE;
GstOssSrc *osssrc;
osssrc = GST_OSSSRC (gst_pad_get_parent (pad));
switch (type) {
case GST_PAD_QUERY_POSITION:
res = gst_osscommon_convert (&osssrc->common,
GST_FORMAT_BYTES, osssrc->curoffset,
format, value);
break;
default:
break;
}
return FALSE;
}
static void
gst_osssrc_close_audio (GstOssSrc *src)
{
g_return_if_fail (GST_FLAG_IS_SET (src, GST_OSSSRC_OPEN));
close(src->fd);
src->fd = -1;
GST_FLAG_UNSET (src, GST_OSSSRC_OPEN);
}
static gboolean
gst_osssrc_sync_parms (GstOssSrc *osssrc)
{
audio_buf_info ispace;
gint frag;
/* remember : ioctl on samplerate returns the sample rate the card
* is actually set to ! Setting it to 44101 Hz could cause it to
* be set to 44101, for example
*/
guint rate;
gint format;
gint bps;
g_return_val_if_fail (osssrc->fd > 0, FALSE);
/* get rate, we don't modify the original rate as the audio device
* might not exactly give us the requested value */
rate = osssrc->rate;
/* transform format parameters to oss format */
if (!gst_ossformat_get (osssrc->law, osssrc->endianness, osssrc->sign,
osssrc->width, osssrc->depth, &format, &bps))
{
return FALSE;
}
frag = 0x7fff0006;
ioctl(osssrc->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
ioctl(osssrc->fd, SNDCTL_DSP_RESET, 0);
ioctl(osssrc->fd, SNDCTL_DSP_SETFMT, &format);
ioctl(osssrc->fd, SNDCTL_DSP_CHANNELS, &osssrc->channels);
ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &rate);
ioctl(osssrc->fd, SNDCTL_DSP_GETISPACE, &ispace);
ioctl(osssrc->fd, SNDCTL_DSP_GETBLKSIZE, &frag);
g_print("setting sound card to %dHz %d bit %s (%d bytes buffer, %d fragment)\n",
rate, osssrc->width,
(osssrc->channels == 2) ? "stereo" : "mono", ispace.bytes, frag);
return TRUE;
}
return res;
}
gboolean
gst_osssrc_factory_init (GstPlugin *plugin)

30
sys/oss/gstosssrc.h
View file

@ -25,8 +25,8 @@
#define __GST_OSSSRC_H__
#include <config.h>
#include <gst/gst.h>
#include "gstosscommon.h"
G_BEGIN_DECLS
@ -51,34 +51,18 @@ typedef struct _GstOssSrc GstOssSrc;
typedef struct _GstOssSrcClass GstOssSrcClass;
struct _GstOssSrc {
GstElement element;
GstElement element;
/* pads */
GstPad *srcpad;
GstPad *srcpad;
/* device */
gchar *device;
GstOssCommon common;
/* sound card */
gint fd;
/* audio parameters */
gint law;
gint endianness;
gint sign;
gint width;
gint depth;
gint rate;
gint channels;
gboolean need_eos; /* Do we need to emit an EOS? */
gboolean need_eos; /* Do we need to emit an EOS? */
/* blocking */
guint64 basetime;
guint64 samples_since_basetime;
gulong curoffset;
gulong bytes_per_read;
gulong curoffset;
gulong buffersize;
};
struct _GstOssSrcClass {