mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-03-13 07:02:53 +00:00
Code Issues 1 Projects Releases Wiki Activity

first batch

Browse source 
Original commit message from CVS:
first batch
This commit is contained in:
Thomas Vander Stichele 2001-12-17 19:03:13 +00:00
parent 754313ab71
commit f0bb7eef82
12 changed files with 2315 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sys/Makefile.am Normal file
View file

@ -0,0 +1,5 @@
### use HAVE_ stuff to decide on dirs
DIRS=qcam v4l vcdsrc vgasink xvideosink
DIST_SUBDIRS=qcam v4l vcdsrc vgasink xvideosink

11
sys/oss/Makefile.am Normal file
View file

@ -0,0 +1,11 @@
filterdir = $(libdir)/gst
filter_LTLIBRARIES = libgstossaudio.la libgstosshelper.la
libgstossaudio_la_SOURCES = gstosssink.c gstosssrc.c gstossaudio.c gstossgst.c
libgstossaudio_la_CFLAGS = $(GST_CFLAGS)
libgstosshelper_la_SOURCES = gstosshelper.c
noinst_HEADERS = gstosssink.h gstosssrc.h gstossgst.h gstosshelper.h

37
sys/oss/README Normal file
View file

@ -0,0 +1,37 @@
GStreamer
(------------------------------------)
! !
sink GstOss src
! !
! !
(------------------------------------)
! ^
! 500 ! 501
V !
(------------------------------------)
! GstOssHelper !
(------------------------------------)
! Native OSS APP !
! !
(------------------------------------)
Port 500 protocol
-----------------
nothing yet
port 501 protocol
-----------------
1 <N> <N-bytes>
N bytes of raw audio data following
2 <OSS format>

47
sys/oss/gstossaudio.c Normal file
View file

@ -0,0 +1,47 @@
/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gstosssink.h"
#include "gstosssrc.h"
#include "gstossgst.h"
static gboolean
plugin_init (GModule *module, GstPlugin *plugin)
{
gboolean ret;
ret = gst_osssink_factory_init (plugin);
g_return_val_if_fail (ret == TRUE, FALSE);
ret = gst_osssrc_factory_init (plugin);
g_return_val_if_fail (ret == TRUE, FALSE);
ret = gst_ossgst_factory_init (plugin);
g_return_val_if_fail (ret == TRUE, FALSE);
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"ossaudio",
plugin_init
};

448
sys/oss/gstossgst.c Normal file
View file

@ -0,0 +1,448 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstossgst.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* 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 <stdlib.h>
#include "gstossgst.h"
#include "gstosshelper.h"
static GstElementDetails gst_ossgst_details = {
"Audio Wrapper (OSS)",
"Src/Audio",
"Hijacks /dev/dsp to get the output of OSS apps into GStreamer",
VERSION,
"Wim Taymans <wim.taymans@chello.be>",
"(C) 2001",
};
static void gst_ossgst_class_init (GstOssGstClass *klass);
static void gst_ossgst_init (GstOssGst *ossgst);
static GstElementStateReturn gst_ossgst_change_state (GstElement *element);
static void gst_ossgst_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_ossgst_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static GstBuffer* gst_ossgst_get (GstPad *pad);
/* OssGst signals and args */
enum {
LAST_SIGNAL
};
enum {
ARG_0,
ARG_MUTE,
ARG_PROGRAM,
/* FILL ME */
};
static GstPadTemplate*
ossgst_src_factory (void)
{
return
gst_padtemplate_new (
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
gst_caps_new (
"ossgst_src",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_LIST (
GST_PROPS_BOOLEAN (FALSE),
GST_PROPS_BOOLEAN (TRUE)
),
"width", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"depth", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2),
NULL)),
NULL);
}
static GstElementClass *parent_class = NULL;
static GstPadTemplate *gst_ossgst_src_template;
static gchar *plugin_dir = NULL;
GType
gst_ossgst_get_type (void)
{
static GType ossgst_type = 0;
if (!ossgst_type) {
static const GTypeInfo ossgst_info = {
sizeof(GstOssGstClass),
NULL,
NULL,
(GClassInitFunc)gst_ossgst_class_init,
NULL,
NULL,
sizeof(GstOssGst),
0,
(GInstanceInitFunc)gst_ossgst_init,
};
ossgst_type = g_type_register_static (GST_TYPE_ELEMENT, "GstOssGst", &ossgst_info, 0);
}
return ossgst_type;
}
static void
gst_ossgst_class_init (GstOssGstClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
g_param_spec_boolean("mute","mute","mute",
TRUE,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PROGRAM,
g_param_spec_string("command","command","command",
NULL, G_PARAM_READWRITE)); // CHECKME
gobject_class->set_property = gst_ossgst_set_property;
gobject_class->get_property = gst_ossgst_get_property;
gstelement_class->change_state = gst_ossgst_change_state;
}
static void
gst_ossgst_init (GstOssGst *ossgst)
{
ossgst->srcpad = gst_pad_new_from_template (gst_ossgst_src_template, "src");
gst_element_add_pad (GST_ELEMENT (ossgst), ossgst->srcpad);
gst_pad_set_get_function (ossgst->srcpad, gst_ossgst_get);
ossgst->command = NULL;
}
static GstCaps*
gst_ossgst_format_to_caps (gint format, gint stereo, gint rate)
{
GstCaps *caps = NULL;
gint law = 0;
gulong endianness = G_BYTE_ORDER;
gboolean is_signed = TRUE;
gint width = 16;
gboolean supported = TRUE;
GST_DEBUG (0, "have format 0x%08x %d %d\n", format, stereo, rate);
switch (format) {
case AFMT_MU_LAW:
law = 1;
break;
case AFMT_A_LAW:
law = 2;
break;
case AFMT_U8:
width = 8;
is_signed = FALSE;
break;
case AFMT_S16_LE:
width = 16;
endianness = G_LITTLE_ENDIAN;
is_signed = TRUE;
break;
case AFMT_S16_BE:
endianness = G_BIG_ENDIAN;
width = 16;
is_signed = TRUE;
break;
case AFMT_S8:
width = 8;
is_signed = TRUE;
break;
case AFMT_U16_LE:
width = 16;
endianness = G_LITTLE_ENDIAN;
is_signed = FALSE;
break;
case AFMT_U16_BE:
width = 16;
endianness = G_BIG_ENDIAN;
is_signed = FALSE;
break;
case AFMT_IMA_ADPCM:
case AFMT_MPEG:
#ifdef AFMT_AC3
case AFMT_AC3:
#endif
default:
supported = FALSE;
break;
}
if (supported) {
caps = gst_caps_new (
"ossgst_caps",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (law),
"endianness", GST_PROPS_INT (endianness),
"signed", GST_PROPS_BOOLEAN (is_signed),
"width", GST_PROPS_INT (width),
"depth", GST_PROPS_INT (width),
"rate", GST_PROPS_INT (rate),
"channels", GST_PROPS_INT (stereo?2:1),
NULL));
}
else {
g_warning ("gstossgst: program tried to use unsupported format %x\n", format);
}
return caps;
}
static GstBuffer*
gst_ossgst_get (GstPad *pad)
{
GstOssGst *ossgst;
GstBuffer *buf = NULL;
command cmd;
gboolean have_data = FALSE;
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
/* this has to be an audio buffer */
ossgst = GST_OSSGST (gst_pad_get_parent (pad));
while (!have_data) {
/* read the command */
read (ossgst->fdout[0], &cmd, sizeof (command));
switch (cmd.id) {
case CMD_DATA:
buf = gst_buffer_new ();
GST_BUFFER_SIZE (buf) = cmd.cmd.length;
GST_BUFFER_DATA (buf) = g_malloc (GST_BUFFER_SIZE (buf));
GST_BUFFER_SIZE (buf) = read (ossgst->fdout[0], GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
have_data = TRUE;
break;
case CMD_FORMAT:
{
GstCaps *caps;
caps = gst_ossgst_format_to_caps (cmd.cmd.format.format,
cmd.cmd.format.stereo,
cmd.cmd.format.rate);
gst_pad_set_caps (ossgst->srcpad, caps);
}
break;
default:
break;
}
}
return buf;
}
static void
gst_ossgst_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstOssGst *ossgst;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSGST (object));
ossgst = GST_OSSGST (object);
switch (prop_id) {
case ARG_MUTE:
ossgst->mute = g_value_get_boolean (value);
break;
case ARG_PROGRAM:
if (ossgst->command)
g_free (ossgst->command);
ossgst->command = g_strdup (g_value_get_string (value));
break;
default:
break;
}
}
static void
gst_ossgst_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstOssGst *ossgst;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_OSSGST (object));
ossgst = GST_OSSGST (object);
switch (prop_id) {
case ARG_MUTE:
g_value_set_boolean (value, ossgst->mute);
break;
case ARG_PROGRAM:
g_value_set_string (value, ossgst->command);
break;
default:
break;
}
}
static gboolean
gst_ossgst_spawn_process (GstOssGst *ossgst)
{
static gchar *ld_preload;
pipe(ossgst->fdin);
pipe(ossgst->fdout);
GST_DEBUG (0, "about to fork\n");
if((ossgst->childpid = fork()) == -1)
{
perror("fork");
gst_element_error(GST_ELEMENT(ossgst),"forking");
return FALSE;
}
GST_DEBUG (0,"forked %d\n", ossgst->childpid);
if(ossgst->childpid == 0)
{
gchar **args;
GST_DEBUG (0, "fork command %d\n", ossgst->childpid);
ld_preload = getenv ("LD_PRELOAD");
if (ld_preload == NULL) {
ld_preload = "";
}
ld_preload = g_strconcat (ld_preload, " ", plugin_dir, G_DIR_SEPARATOR_S,
"libgstosshelper.so", NULL);
setenv ("LD_PRELOAD", ld_preload, TRUE);
// child
dup2(ossgst->fdin[0], HELPER_MAGIC_IN); /* set the childs input stream */
dup2(ossgst->fdout[1], HELPER_MAGIC_OUT); /* set the childs output stream */
// split the arguments
args = g_strsplit (ossgst->command, " ", 0);
execvp(args[0], args);
// will only reach if error
perror("exec");
gst_element_error(GST_ELEMENT(ossgst),"starting child process");
return FALSE;
}
GST_FLAG_SET(ossgst,GST_OSSGST_OPEN);
return TRUE;
}
static gboolean
gst_ossgst_kill_process (GstOssGst *ossgst)
{
return TRUE;
}
static GstElementStateReturn
gst_ossgst_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_OSSGST (element), FALSE);
if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET (element, GST_OSSGST_OPEN))
gst_ossgst_kill_process (GST_OSSGST (element));
} else {
if (!GST_FLAG_IS_SET (element, GST_OSSGST_OPEN)) {
if (!gst_ossgst_spawn_process (GST_OSSGST (element))) {
return GST_STATE_FAILURE;
}
}
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
gboolean
gst_ossgst_factory_init (GstPlugin *plugin)
{
GstElementFactory *factory;
gchar **path;
gint i =0;
// get the path of this plugin, we assume the helper progam lives in the
// same directory.
path = g_strsplit (plugin->filename, G_DIR_SEPARATOR_S, 0);
while (path[i]) {
i++;
if (path[i] == NULL) {
g_free (path[i-1]);
path[i-1] = NULL;
}
}
plugin_dir = g_strjoinv (G_DIR_SEPARATOR_S, path);
g_strfreev (path);
factory = gst_elementfactory_new ("ossgst", GST_TYPE_OSSGST, &gst_ossgst_details);
g_return_val_if_fail (factory != NULL, FALSE);
gst_ossgst_src_template = ossgst_src_factory ();
gst_elementfactory_add_padtemplate (factory, gst_ossgst_src_template);
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}

87
sys/oss/gstossgst.h Normal file
View file

@ -0,0 +1,87 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstossgst.h:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSSGST_H__
#define __GST_OSSGST_H__
#include <config.h>
#include <gst/gst.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_OSSGST \
(gst_ossgst_get_type())
#define GST_OSSGST(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSSGST,GstOssGst))
#define GST_OSSGST_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSSGST,GstOssGstClass))
#define GST_IS_OSSGST(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSSGST))
#define GST_IS_OSSGST_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSSGST))
typedef enum {
GST_OSSGST_OPEN = GST_ELEMENT_FLAG_LAST,
GST_OSSGST_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2,
} GstOssGstFlags;
typedef struct _GstOssGst GstOssGst;
typedef struct _GstOssGstClass GstOssGstClass;
struct _GstOssGst {
GstElement element;
GstPad *srcpad;
gint fdout[2];
gint fdin[2];
pid_t childpid;
/* soundcard state */
gboolean mute;
gchar *command;
};
struct _GstOssGstClass {
GstElementClass parent_class;
/* signals */
};
GType gst_ossgst_get_type(void);
gboolean gst_ossgst_factory_init(GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_OSSGST_H__ */

401
sys/oss/gstosshelper.c Normal file
View file

@ -0,0 +1,401 @@
/* Evil evil evil hack to get OSS apps to cooperate with esd
* Copyright (C) 1998, 1999 Manish Singh <yosh@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
//#define DSP_DEBUG
/* This lets you run multiple instances of x11amp by setting the X11AMPNUM
environment variable. Only works on glibc2.
*/
/* #define MULTIPLE_X11AMP */
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#ifdef DSP_DEBUG
#define DPRINTF(format, args...) printf(format, ## args)
#else
#define DPRINTF(format, args...)
#endif
#include "config.h"
#include <dlfcn.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <errno.h>
#ifdef HAVE_MACHINE_SOUNDCARD_H
# include <machine/soundcard.h>
#else
# ifdef HAVE_SOUNDCARD_H
# include <soundcard.h>
# else
# include <sys/soundcard.h>
# endif
#endif
#include "gstosshelper.h"
/* BSDI has this functionality, but not define :() */
#if defined(RTLD_NEXT)
#define REAL_LIBC RTLD_NEXT
#else
#define REAL_LIBC ((void *) -1L)
#endif
#if defined(__FreeBSD__) || defined(__bsdi__)
typedef unsigned long request_t;
#else
typedef int request_t;
#endif
static int sndfd = -1;
static int new_format = 1;
static int fmt = AFMT_S16_LE;
static int speed = 44100;
static int stereo = 1;
int
open (const char *pathname, int flags, ...)
{
static int (*func) (const char *, int, mode_t) = NULL;
va_list args;
mode_t mode;
if (!func)
func = (int (*) (const char *, int, mode_t)) dlsym (REAL_LIBC, "open");
va_start (args, flags);
mode = va_arg (args, mode_t);
va_end (args);
if (!strcmp (pathname, "/dev/dsp")) {
DPRINTF ("hijacking /dev/dsp open, and taking it to GStreamer...\n");
return (sndfd = HELPER_MAGIC_SNDFD);
}
return (sndfd = (*func) (pathname, flags, mode));
}
static int
dspctl (int fd, request_t request, void *argp)
{
int *arg = (int *) argp;
DPRINTF ("hijacking /dev/dsp ioctl, and sending it to GStreamer "
"(%d : %x - %p)\n", fd, request, argp);
switch (request)
{
case SNDCTL_DSP_RESET:
case SNDCTL_DSP_POST:
break;
case SNDCTL_DSP_SETFMT:
fmt = *arg;
new_format = 1;
break;
case SNDCTL_DSP_SPEED:
speed = *arg;
new_format = 1;
break;
case SNDCTL_DSP_STEREO:
stereo = *arg;
new_format = 1;
break;
case SNDCTL_DSP_GETBLKSIZE:
*arg = 4096;
break;
case SNDCTL_DSP_GETFMTS:
*arg = 0x38;
break;
#ifdef SNDCTL_DSP_GETCAPS
case SNDCTL_DSP_GETCAPS:
*arg = 0;
break;
#endif
case SNDCTL_DSP_GETOSPACE:
{
audio_buf_info *bufinfo = (audio_buf_info *) argp;
bufinfo->bytes = 4096;
}
break;
default:
DPRINTF ("unhandled /dev/dsp ioctl (%x - %p)\n", request, argp);
break;
}
return 0;
}
void *
mmap(void *start, size_t length, int prot , int flags, int fd, off_t offset)
{
static void * (*func) (void *, size_t, int, int, int, off_t) = NULL;
if (!func)
func = (void * (*) (void *, size_t, int, int, int, off_t)) dlsym (REAL_LIBC, "mmap");
if ((fd == sndfd) && (sndfd != -1))
{
DPRINTF("MMAP: oops... we're in trouble here. /dev/dsp mmap()ed. Not supported yet.\n");
errno = EACCES;
return (void *)-1; /* Better causing an error than silently not working, in this case */
}
return (*func) (start, length, prot, flags, fd, offset);
}
ssize_t
write (int fd, const void *buf, size_t len)
{
static int (*func) (int, const void *, size_t) = NULL;
command cmd;
if (!func)
func = (int (*) (int, const void *, size_t)) dlsym (REAL_LIBC, "write");
if ((fd != sndfd) || (sndfd == -1))
{
return (*func) (fd, buf, len);
}
DPRINTF("WRITE: called for %d bytes\n", len);
if (new_format) {
new_format = 0;
cmd.id = CMD_FORMAT;
cmd.cmd.format.format = fmt;
cmd.cmd.format.stereo = stereo;
cmd.cmd.format.rate = speed;
(*func) (HELPER_MAGIC_OUT, &cmd, sizeof(command));
}
cmd.id = CMD_DATA;
cmd.cmd.length = len;
(*func) (HELPER_MAGIC_OUT, &cmd, sizeof(command));
(*func) (HELPER_MAGIC_OUT, buf, len);
//return (*func) (fd, buf, len);
return len;
}
int
select (int n, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds, struct timeval *timeout)
{
static int (*func) (int, fd_set *, fd_set *, fd_set *, struct timeval *) = NULL;
if (!func)
func = (int (*) (int, fd_set *, fd_set *, fd_set *, struct timeval *)) dlsym (REAL_LIBC, "select");
if (n == sndfd) {
DPRINTF ("audiooss: hijacking /dev/dsp select() [output]\n");
}
return (*func) (n, readfds, writefds, exceptfds, timeout);
}
int
dup2 (int oldfd, int newfd)
{
static int (*func) (int, int) = NULL;
if (!func)
func = (int (*) (int, int)) dlsym (REAL_LIBC, "dup2");
if ((oldfd == sndfd) && (oldfd != -1) && (newfd != -1))
{
DPRINTF("dup2(%d,%d) (oldfd == sndfd) called\n", oldfd, newfd);
/* Do not close(newfd) as that would mark it available for reuse by the system -
* just tell the program that yes, we got the fd you asked for. Hackish. */
sndfd = newfd;
return newfd;
}
return (*func) (oldfd, newfd);
}
int
ioctl (int fd, request_t request, ...)
{
static int (*func) (int, request_t, void *) = NULL;
va_list args;
void *argp;
if (!func)
func = (int (*) (int, request_t, void *)) dlsym (REAL_LIBC, "ioctl");
va_start (args, request);
argp = va_arg (args, void *);
va_end (args);
if (fd == sndfd)
return dspctl (fd, request, argp);
return (*func) (fd, request, argp);
}
int
fcntl(int fd, int cmd, ...)
{
static int (*func) (int, int, void *) = NULL;
va_list args;
void *argp;
if (!func)
func = (int (*) (int, int, void *)) dlsym (REAL_LIBC, "fcntl");
va_start (args, cmd);
argp = va_arg (args, void *);
va_end (args);
if ((fd != -1) && (fd == sndfd))
{
DPRINTF ("hijacking /dev/dsp fcntl() "
"(%d : %x - %p)\n", fd, cmd, argp);
if (cmd == F_GETFL) return O_RDWR;
if (cmd == F_GETFD) return sndfd;
return 0;
}
else
{
return (*func) (fd, cmd, argp);
}
return 0;
}
int
close (int fd)
{
static int (*func) (int) = NULL;
if (!func)
func = (int (*) (int)) dlsym (REAL_LIBC, "close");
if (fd == sndfd)
sndfd = -1;
return (*func) (fd);
}
#ifdef MULTIPLE_X11AMP
#include <socketbits.h>
#include <sys/param.h>
#include <sys/un.h>
#define ENVSET "X11AMPNUM"
int
unlink (const char *filename)
{
static int (*func) (const char *) = NULL;
char *num;
if (!func)
func = (int (*) (const char *)) dlsym (REAL_LIBC, "unlink");
if (!strcmp (filename, "/tmp/X11Amp_CTRL") && (num = getenv (ENVSET)))
{
char buf[PATH_MAX] = "/tmp/X11Amp_CTRL";
strcat (buf, num);
return (*func) (buf);
}
else
return (*func) (filename);
}
typedef int (*sa_func_t) (int, struct sockaddr *, int);
static int
sockaddr_mangle (sa_func_t func, int fd, struct sockaddr *addr, int len)
{
char *num;
if (!strcmp (((struct sockaddr_un *) addr)->sun_path, "/tmp/X11Amp_CTRL")
&& (num = getenv(ENVSET)))
{
int ret;
char buf[PATH_MAX] = "/tmp/X11Amp_CTRL";
struct sockaddr_un *new_addr = malloc (len);
strcat (buf, num);
memcpy (new_addr, addr, len);
strcpy (new_addr->sun_path, buf);
ret = (*func) (fd, (struct sockaddr *) new_addr, len);
free (new_addr);
return ret;
}
else
return (*func) (fd, addr, len);
}
int
bind (int fd, struct sockaddr *addr, int len)
{
static sa_func_t func = NULL;
if (!func)
func = (sa_func_t) dlsym (REAL_LIBC, "bind");
return sockaddr_mangle (func, fd, addr, len);
}
int
connect (int fd, struct sockaddr *addr, int len)
{
static sa_func_t func = NULL;
if (!func)
func = (sa_func_t) dlsym (REAL_LIBC, "connect");
return sockaddr_mangle (func, fd, addr, len);
}
#endif /* MULTIPLE_X11AMP */
#else /* __GNUC__ */
static char *ident = NULL;
void
nogcc (void)
{
ident = NULL;
}
#endif /* __GNUC__ */

44
sys/oss/gstosshelper.h Normal file
View file

@ -0,0 +1,44 @@
/* Evil evil evil hack to get OSS apps to cooperate with esd
* Copyright (C) 1998, 1999 Manish Singh <yosh@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSSGST_HELPER_H__
#define __GST_OSSGST_HELPER_H__
#define HELPER_MAGIC_IN 500
#define HELPER_MAGIC_OUT 501
#define HELPER_MAGIC_SNDFD 502
#define CMD_DATA 1
#define CMD_FORMAT 2
typedef struct {
char id;
union {
unsigned int length;
struct {
int format;
int stereo;
int rate;
} format;
} cmd;
} command;
#endif /* __GST_OSSGST_HELPER_H__ */

626
sys/oss/gstosssink.c Normal file
View file

@ -0,0 +1,626 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstosssink.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* 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 <gstosssink.h>
static GstElementDetails gst_osssink_details = {
"Audio Sink (OSS)",
"Sink/Audio",
"Output to a sound card via OSS",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>, "
"Wim Taymans <wim.taymans@chello.be>",
"(C) 1999",
};
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 void gst_osssink_sync_parms (GstOssSink *osssink);
static GstElementStateReturn gst_osssink_change_state (GstElement *element);
static GstPadNegotiateReturn gst_osssink_negotiate (GstPad *pad, GstCaps **caps, gpointer *user_data);
static void gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value,
GParamSpec *pspec);
static void gst_osssink_get_property (GObject *object, guint prop_id, GValue *value,
GParamSpec *pspec);
static void gst_osssink_chain (GstPad *pad,GstBuffer *buf);
/* OssSink signals and args */
enum {
SIGNAL_HANDOFF,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_DEVICE,
ARG_MUTE,
ARG_FORMAT,
ARG_CHANNELS,
ARG_FREQUENCY,
ARG_FRAGMENT,
ARG_BUFFER_SIZE
/* FILL ME */
};
GST_PADTEMPLATE_FACTORY (osssink_sink_factory,
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"osssink_sink",
"audio/raw",
"format", GST_PROPS_STRING ("int"), // hack
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_LIST (
GST_PROPS_BOOLEAN (FALSE),
GST_PROPS_BOOLEAN (TRUE)
),
"width", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"depth", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2)
)
);
#define GST_TYPE_OSSSINK_CHANNELS (gst_osssink_channels_get_type())
static GType
gst_osssink_channels_get_type(void) {
static GType osssink_channels_type = 0;
static GEnumValue osssink_channels[] = {
{0, "0", "Silence"},
{1, "1", "Mono"},
{2, "2", "Stereo"},
{0, NULL, NULL},
};
if (!osssink_channels_type) {
osssink_channels_type = g_enum_register_static("GstAudiosinkChannels", osssink_channels);
}
return osssink_channels_type;
}
static GstElementClass *parent_class = NULL;
static guint gst_osssink_signals[LAST_SIGNAL] = { 0 };
GType
gst_osssink_get_type (void)
{
static GType osssink_type = 0;
if (!osssink_type) {
static const GTypeInfo osssink_info = {
sizeof(GstOssSinkClass),
NULL,
NULL,
(GClassInitFunc)gst_osssink_class_init,
NULL,
NULL,
sizeof(GstOssSink),
0,
(GInstanceInitFunc)gst_osssink_init,
};
osssink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstOssSink", &osssink_info, 0);
}
return osssink_type;
}
static GstBufferPool*
gst_osssink_get_bufferpool (GstPad *pad)
{
GstOssSink *oss;
oss = GST_OSSSINK (gst_pad_get_parent(pad));
return oss->sinkpool;
}
static void
gst_osssink_finalize (GObject *object)
{
GstOssSink *osssink = (GstOssSink *) object;
g_free (osssink->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_osssink_class_init (GstOssSinkClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
g_param_spec_string("device","device","device",
"/dev/dsp",G_PARAM_READWRITE)); // CHECKME!
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
g_param_spec_boolean("mute","mute","mute",
TRUE,G_PARAM_READWRITE));
// it would be nice to show format in symbolic form, oh well
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FORMAT,
g_param_spec_int ("format","format","format",
0, G_MAXINT, AFMT_S16_LE, G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNELS,
g_param_spec_enum("channels","channels","channels",
GST_TYPE_OSSSINK_CHANNELS,2,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
g_param_spec_int("frequency","frequency","frequency",
0,G_MAXINT,44100,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAGMENT,
g_param_spec_int("fragment","fragment","fragment",
0,G_MAXINT,6,G_PARAM_READWRITE));
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFFER_SIZE,
g_param_spec_int("buffer_size","buffer_size","buffer_size",
0,G_MAXINT,4096,G_PARAM_READWRITE));
gst_osssink_signals[SIGNAL_HANDOFF] =
g_signal_new("handoff",G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET(GstOssSinkClass,handoff), NULL, NULL,
g_cclosure_marshal_VOID__VOID,G_TYPE_NONE,0);
gobject_class->set_property = gst_osssink_set_property;
gobject_class->get_property = gst_osssink_get_property;
gobject_class->finalize = gst_osssink_finalize;
gstelement_class->change_state = gst_osssink_change_state;
}
static void
gst_osssink_init (GstOssSink *osssink)
{
osssink->sinkpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (osssink_sink_factory), "sink");
gst_element_add_pad (GST_ELEMENT (osssink), osssink->sinkpad);
gst_pad_set_negotiate_function (osssink->sinkpad, gst_osssink_negotiate);
gst_pad_set_bufferpool_function (osssink->sinkpad, gst_osssink_get_bufferpool);
gst_pad_set_chain_function (osssink->sinkpad, gst_osssink_chain);
osssink->device = g_strdup ("/dev/dsp");
osssink->fd = -1;
osssink->clock = gst_clock_get_system();
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_clock_register (osssink->clock, GST_OBJECT (osssink));
osssink->bufsize = 4096;
/* 6 buffers per chunk by default */
osssink->sinkpool = gst_buffer_pool_get_default (osssink->bufsize, 6);
GST_FLAG_SET (osssink, GST_ELEMENT_THREAD_SUGGESTED);
}
static gboolean
gst_osssink_parse_caps (GstOssSink *osssink, GstCaps *caps)
{
gint law, endianness, width, depth;
gboolean sign;
gint format = -1;
// deal with the case where there are no props...
if (gst_caps_get_props(caps) == NULL) return FALSE;
width = gst_caps_get_int (caps, "width");
depth = gst_caps_get_int (caps, "depth");
if (width != depth) return FALSE;
law = gst_caps_get_int (caps, "law");
endianness = gst_caps_get_int (caps, "endianness");
sign = gst_caps_get_boolean (caps, "signed");
if (law == 0) {
if (width == 16) {
if (sign == TRUE) {
if (endianness == G_LITTLE_ENDIAN)
format = AFMT_S16_LE;
else if (endianness == G_BIG_ENDIAN)
format = AFMT_S16_BE;
}
else {
if (endianness == G_LITTLE_ENDIAN)
format = AFMT_U16_LE;
else if (endianness == G_BIG_ENDIAN)
format = AFMT_U16_BE;
}
}
else if (width == 8) {
if (sign == TRUE) {
format = AFMT_S8;
}
else {
format = AFMT_U8;
}
}
}
if (format == -1)
return FALSE;
osssink->format = format;
osssink->channels = gst_caps_get_int (caps, "channels");
osssink->frequency = gst_caps_get_int (caps, "rate");
return TRUE;
}
static GstPadNegotiateReturn
gst_osssink_negotiate (GstPad *pad, GstCaps **caps, gpointer *user_data)
{
GstOssSink *osssink;
g_return_val_if_fail (pad != NULL, GST_PAD_NEGOTIATE_FAIL);
g_return_val_if_fail (GST_IS_PAD (pad), GST_PAD_NEGOTIATE_FAIL);
osssink = GST_OSSSINK (gst_pad_get_parent (pad));
GST_INFO (GST_CAT_NEGOTIATION, "osssink: negotiate");
// we decide
if (user_data == NULL) {
*caps = NULL;
return GST_PAD_NEGOTIATE_TRY;
}
// have we got caps?
else if (*caps) {
if (gst_osssink_parse_caps (osssink, *caps)) {
gst_osssink_sync_parms (osssink);
return GST_PAD_NEGOTIATE_AGREE;
}
// FIXME check if the sound card was really set to these caps,
// else send out another caps..
return GST_PAD_NEGOTIATE_FAIL;
}
return GST_PAD_NEGOTIATE_FAIL;
}
static void
gst_osssink_sync_parms (GstOssSink *osssink)
{
audio_buf_info ospace;
int frag;
g_return_if_fail (osssink != NULL);
g_return_if_fail (GST_IS_OSSSINK (osssink));
if (osssink->fd == -1) return;
if (osssink->fragment >> 16)
frag = osssink->fragment;
else
frag = 0x7FFF0000 | osssink->fragment;
ioctl (osssink->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
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, &frag);
ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
/*
g_warning ("osssink: setting sound card to %dHz %d bit %s (%d bytes buffer, %d fragment)\n",
osssink->frequency, osssink->format,
(osssink->channels == 2) ? "stereo" : "mono", ospace.bytes, frag);
*/
GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: setting sound card to %dHz %d bit %s (%d bytes buffer, %d fragment)",
osssink->frequency, osssink->format,
(osssink->channels == 2) ? "stereo" : "mono", ospace.bytes, frag);
}
static void
gst_osssink_chain (GstPad *pad, GstBuffer *buf)
{
GstOssSink *osssink;
gboolean in_flush;
audio_buf_info ospace;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
/* this has to be an audio buffer */
osssink = GST_OSSSINK (gst_pad_get_parent (pad));
// g_return_if_fail(GST_FLAG_IS_SET(osssink,GST_STATE_RUNNING));
if (GST_IS_EVENT (buf)) {
g_print ("eos on osssink\n");
gst_element_set_state (osssink, GST_STATE_PAUSED);
gst_event_free (GST_EVENT (buf));
}
if ((in_flush = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLUSH))) {
GST_DEBUG (GST_CAT_PLUGIN_INFO,"osssink: flush\n");
ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
}
g_signal_emit (G_OBJECT (osssink), gst_osssink_signals[SIGNAL_HANDOFF], 0,
osssink);
if (GST_BUFFER_DATA (buf) != NULL) {
#ifndef GST_DISABLE_TRACE
gst_trace_add_entry(NULL, 0, buf, "osssink: writing to soundcard");
#endif // GST_DISABLE_TRACE
//g_print("osssink: writing to soundcard\n");
if (osssink->fd >= 0) {
if (!osssink->mute) {
gst_clock_wait (osssink->clock, GST_BUFFER_TIMESTAMP (buf), GST_OBJECT (osssink));
ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
GST_DEBUG (GST_CAT_PLUGIN_INFO,"osssink: (%d bytes buffer) %d %p %d\n", ospace.bytes,
osssink->fd, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
write (osssink->fd, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
//write(STDOUT_FILENO,GST_BUFFER_DATA(buf),GST_BUFFER_SIZE(buf));
}
}
}
gst_buffer_unref (buf);
}
static void
gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
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:
osssink->device = g_strdup (g_value_get_string (value));
break;
case ARG_MUTE:
osssink->mute = g_value_get_boolean (value);
break;
case ARG_FORMAT:
osssink->format = g_value_get_int (value);
gst_osssink_sync_parms (osssink);
break;
case ARG_CHANNELS:
osssink->channels = g_value_get_enum (value);
gst_osssink_sync_parms (osssink);
break;
case ARG_FREQUENCY:
osssink->frequency = g_value_get_int (value);
gst_osssink_sync_parms (osssink);
break;
case ARG_FRAGMENT:
osssink->fragment = g_value_get_int (value);
gst_osssink_sync_parms (osssink);
break;
case ARG_BUFFER_SIZE:
osssink->bufsize = g_value_get_int (value);
osssink->sinkpool = gst_buffer_pool_get_default (osssink->bufsize, 6);
break;
default:
break;
}
}
static void
gst_osssink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
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);
break;
case ARG_MUTE:
g_value_set_boolean (value, osssink->mute);
break;
case ARG_FORMAT:
g_value_set_int (value, osssink->format);
break;
case ARG_CHANNELS:
g_value_set_enum (value, osssink->channels);
break;
case ARG_FREQUENCY:
g_value_set_int (value, osssink->frequency);
break;
case ARG_FRAGMENT:
g_value_set_int (value, osssink->fragment);
break;
case ARG_BUFFER_SIZE:
g_value_set_int (value, osssink->bufsize);
break;
default:
break;
}
}
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 */
sink->fd = open(sink->device, O_WRONLY | O_NONBLOCK);
if (errno == EBUSY) {
g_warning ("osssink: unable to open the sound device (in use ?)\n");
return FALSE;
}
/* re-open the sound device in blocking mode */
close(sink->fd);
sink->fd = open(sink->device, O_WRONLY);
/* if we have it, set the default parameters and go have fun */
if (sink->fd >= 0) {
/* 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);
gst_osssink_sync_parms (sink);
return TRUE;
}
return FALSE;
}
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);
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
gst_osssink_close_audio (osssink);
/* otherwise (READY) we need to open the sound card */
} else if (GST_STATE_PENDING (element) == GST_STATE_READY) {
if (!GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN)) {
if (!gst_osssink_open_audio (osssink)) {
return GST_STATE_FAILURE;
}
}
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
gboolean
gst_osssink_factory_init (GstPlugin *plugin)
{
GstElementFactory *factory;
factory = gst_elementfactory_new ("osssink", GST_TYPE_OSSSINK, &gst_osssink_details);
g_return_val_if_fail (factory != NULL, FALSE);
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (osssink_sink_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}

96
sys/oss/gstosssink.h Normal file
View file

@ -0,0 +1,96 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstosssink.h:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSSSINK_H__
#define __GST_OSSSINK_H__
#include <config.h>
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_OSSSINK \
(gst_osssink_get_type())
#define GST_OSSSINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSSSINK,GstOssSink))
#define GST_OSSSINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSSSINK,GstOssSinkClass))
#define GST_IS_OSSSINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSSSINK))
#define GST_IS_OSSSINK_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSSSINK))
typedef enum {
GST_OSSSINK_OPEN = GST_ELEMENT_FLAG_LAST,
GST_OSSSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2,
} GstOssSinkFlags;
typedef struct _GstOssSink GstOssSink;
typedef struct _GstOssSinkClass GstOssSinkClass;
struct _GstOssSink {
GstElement element;
GstPad *sinkpad;
GstBufferPool *sinkpool;
//GstClockTime clocktime;
GstClock *clock;
/* device */
gchar *device;
/* soundcard state */
int fd;
int caps; /* the capabilities */
gint format;
gint channels;
gint frequency;
gint fragment;
gboolean mute;
guint bufsize;
};
struct _GstOssSinkClass {
GstElementClass parent_class;
/* signals */
void (*handoff) (GstElement *element,GstPad *pad);
};
GType gst_osssink_get_type(void);
gboolean gst_osssink_factory_init(GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_OSSSINK_H__ */

419
sys/oss/gstosssrc.c Normal file
View file

@ -0,0 +1,419 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstosssrc.c:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/soundcard.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <gstosssrc.h>
//#define WEIRD_THING /* show the weird thing with 44100 KHz rec */
static GstElementDetails gst_osssrc_details = {
"Audio Source (OSS)",
"Source/Audio",
"Read from the sound card",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 1999",
};
/* OssSrc signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_DEVICE,
ARG_BYTESPERREAD,
ARG_CUROFFSET,
ARG_FORMAT,
ARG_CHANNELS,
ARG_FREQUENCY
};
GST_PADTEMPLATE_FACTORY (osssrc_src_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"osssrc_src",
"audio/raw",
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0),
"endianness", GST_PROPS_INT (G_BYTE_ORDER),
"signed", GST_PROPS_LIST (
GST_PROPS_BOOLEAN (TRUE),
GST_PROPS_BOOLEAN (FALSE)
),
"width", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"depth", GST_PROPS_LIST (
GST_PROPS_INT (8),
GST_PROPS_INT (16)
),
"rate", GST_PROPS_INT_RANGE (8000, 48000),
"channels", GST_PROPS_INT_RANGE (1, 2)
)
)
static void gst_osssrc_class_init (GstOssSrcClass *klass);
static void gst_osssrc_init (GstOssSrc *osssrc);
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 void gst_osssrc_close_audio (GstOssSrc *src);
static gboolean gst_osssrc_open_audio (GstOssSrc *src);
static void gst_osssrc_sync_parms (GstOssSrc *osssrc);
static GstBuffer * gst_osssrc_get (GstPad *pad);
static GstElementClass *parent_class = NULL;
//static guint gst_osssrc_signals[LAST_SIGNAL] = { 0 };
GType
gst_osssrc_get_type (void)
{
static GType osssrc_type = 0;
if (!osssrc_type) {
static const GTypeInfo osssrc_info = {
sizeof(GstOssSrcClass),
NULL,
NULL,
(GClassInitFunc)gst_osssrc_class_init,
NULL,
NULL,
sizeof(GstOssSrc),
0,
(GInstanceInitFunc)gst_osssrc_init,
};
osssrc_type = g_type_register_static (GST_TYPE_ELEMENT, "GstOssSrc", &osssrc_info, 0);
}
return osssrc_type;
}
static void
gst_osssrc_class_init (GstOssSrcClass *klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)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_CUROFFSET,
g_param_spec_ulong("curoffset","curoffset","curoffset",
0,G_MAXULONG,0,G_PARAM_READABLE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FORMAT,
g_param_spec_int("format","format","format",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNELS,
g_param_spec_int("channels","channels","channels",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
g_param_spec_int("frequency","frequency","frequency",
G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); // CHECKME
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));
gobject_class->set_property = gst_osssrc_set_property;
gobject_class->get_property = gst_osssrc_get_property;
gstelement_class->change_state = gst_osssrc_change_state;
}
static void
gst_osssrc_init (GstOssSrc *osssrc)
{
osssrc->srcpad = gst_pad_new_from_template (
GST_PADTEMPLATE_GET (osssrc_src_factory), "src");
gst_pad_set_get_function(osssrc->srcpad,gst_osssrc_get);
gst_element_add_pad (GST_ELEMENT (osssrc), osssrc->srcpad);
osssrc->device = g_strdup ("/dev/dsp");
osssrc->fd = -1;
/* adding some default values */
osssrc->format = AFMT_S16_LE;
osssrc->channels = 2;
osssrc->frequency = 44100;
osssrc->bytes_per_read = 4096;
osssrc->curoffset = 0;
osssrc->seq = 0;
}
static GstBuffer *
gst_osssrc_get (GstPad *pad)
{
GstOssSrc *src;
GstBuffer *buf;
glong readbytes;
g_return_val_if_fail (pad != NULL, NULL);
src = GST_OSSSRC(gst_pad_get_parent (pad));
GST_DEBUG (0, "attempting to read something from soundcard\n");
buf = gst_buffer_new ();
g_return_val_if_fail (buf, NULL);
GST_BUFFER_DATA (buf) = (gpointer)g_malloc (src->bytes_per_read);
readbytes = read (src->fd,GST_BUFFER_DATA (buf),
src->bytes_per_read);
if (readbytes == 0) {
gst_element_signal_eos (GST_ELEMENT (src));
return NULL;
}
GST_BUFFER_SIZE (buf) = readbytes;
GST_BUFFER_OFFSET (buf) = src->curoffset;
src->curoffset += readbytes;
GST_DEBUG (0, "pushed buffer from soundcard of %ld bytes\n", readbytes);
return buf;
}
static void
gst_osssrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
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);
break;
case ARG_FORMAT:
src->format = g_value_get_int (value);
break;
case ARG_CHANNELS:
src->channels = g_value_get_int (value);
break;
case ARG_FREQUENCY:
src->frequency = g_value_get_int (value);
break;
case ARG_CUROFFSET:
src->curoffset = g_value_get_int (value);
break;
case ARG_DEVICE:
g_free(src->device);
src->device = g_strdup (g_value_get_string (value));
break;
default:
break;
}
}
static void
gst_osssrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
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);
break;
case ARG_FORMAT:
g_value_set_int (value, src->format);
break;
case ARG_CHANNELS:
g_value_set_int (value, src->channels);
break;
case ARG_FREQUENCY:
g_value_set_int (value, src->frequency);
break;
case ARG_CUROFFSET:
g_value_set_ulong (value, src->curoffset);
break;
case ARG_DEVICE:
g_value_set_string (value, src->device);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstElementStateReturn
gst_osssrc_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_OSSSRC (element), FALSE);
GST_DEBUG (0, "osssrc: state change\n");
/* if going down into NULL state, close the file if it's open */
if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
if (GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN))
gst_osssrc_close_audio (GST_OSSSRC (element));
/* otherwise (READY or higher) we need to open the sound card */
} else {
GST_DEBUG (0, "DEBUG: osssrc: ready or higher\n");
if (!GST_FLAG_IS_SET (element, GST_OSSSRC_OPEN)) {
if (!gst_osssrc_open_audio (GST_OSSSRC (element)))
return GST_STATE_FAILURE;
}
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}
static gboolean
gst_osssrc_open_audio (GstOssSrc *src)
{
g_return_val_if_fail (!GST_FLAG_IS_SET (src, GST_OSSSRC_OPEN), FALSE);
/* first try to open the sound card */
src->fd = open(src->device, O_RDONLY);
/* if we have it, set the default parameters and go have fun */
if (src->fd > 0) {
/* set card state */
gst_osssrc_sync_parms (src);
GST_DEBUG (0,"opened audio: %s\n",src->device);
GST_FLAG_SET (src, GST_OSSSRC_OPEN);
return TRUE;
}
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 void
gst_osssrc_sync_parms (GstOssSrc *osssrc)
{
audio_buf_info ispace;
gint frag;
/* hack : ioctl on frequency seems to *change* the frequency
maybe this is right, but at least for 44100 Khz, it
gives unexpected results ! */
guint frequency;
g_return_if_fail (osssrc != NULL);
g_return_if_fail (GST_IS_OSSSRC (osssrc));
g_return_if_fail (osssrc->fd > 0);
frequency = osssrc->frequency;
frag = 0x7fff0006;
ioctl(osssrc->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
ioctl(osssrc->fd, SNDCTL_DSP_RESET, 0);
ioctl(osssrc->fd, SNDCTL_DSP_SETFMT, &osssrc->format);
ioctl(osssrc->fd, SNDCTL_DSP_CHANNELS, &osssrc->channels);
#ifdef WEIRD_THING
g_print ("DEBUG: do you want to see A Weird Thing (TM) ?\n");
g_print ("DEBUG: then set osssrc to a 44100 frequency and check these numbers.\n");
g_print ("DEBUG: osssrc frequency before ioctl: %d\n", osssrc->frequency);
#endif
ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &osssrc->frequency);
#ifdef WEIRD_THING
g_print ("DEBUG: osssrc frequency after ioctl : %d\n", osssrc->frequency);
g_print ("DEBUG: redoing ioctl using a temp variable, and resetting osssrc->frequency\n");
osssrc->frequency = frequency;
ioctl(osssrc->fd, SNDCTL_DSP_SPEED, &frequency);
#endif
ioctl(osssrc->fd, SNDCTL_DSP_GETISPACE, &ispace);
ioctl(osssrc->fd, SNDCTL_DSP_GETBLKSIZE, &frag);
g_print("setting sound card to %dKHz %d bit %s (%d bytes buffer, %d fragment)\n",
osssrc->frequency, osssrc->format,
(osssrc->channels == 2) ? "stereo" : "mono", ispace.bytes, frag);
/* set caps on src pad */
gst_pad_set_caps (osssrc->srcpad, gst_caps_new (
"oss_src",
"audio/raw",
gst_props_new (
"format", GST_PROPS_STRING ("int"),
"law", GST_PROPS_INT (0), //FIXME
"endianness", GST_PROPS_INT (G_BYTE_ORDER), //FIXME
"signed", GST_PROPS_BOOLEAN (TRUE), //FIXME
"width", GST_PROPS_INT (osssrc->format),
"depth", GST_PROPS_INT (osssrc->format),
"rate", GST_PROPS_INT (osssrc->frequency),
"channels", GST_PROPS_INT (osssrc->channels),
NULL
)
));
}
gboolean
gst_osssrc_factory_init (GstPlugin *plugin)
{
GstElementFactory *factory;
factory = gst_elementfactory_new ("osssrc", GST_TYPE_OSSSRC, &gst_osssrc_details);
g_return_val_if_fail (factory != NULL, FALSE);
gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (osssrc_src_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}

94
sys/oss/gstosssrc.h Normal file
View file

@ -0,0 +1,94 @@
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstosssrc.h:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_OSSSRC_H__
#define __GST_OSSSRC_H__
#include <config.h>
#include <gst/gst.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_OSSSRC \
(gst_osssrc_get_type())
#define GST_OSSSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSSSRC,GstOssSrc))
#define GST_OSSSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSSSRC,GstOssSrcClass))
#define GST_IS_OSSSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSSSRC))
#define GST_IS_OSSSRC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSSSRC))
typedef enum {
GST_OSSSRC_OPEN = GST_ELEMENT_FLAG_LAST,
GST_OSSSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2,
} GstOssSrcFlags;
typedef struct _GstOssSrc GstOssSrc;
typedef struct _GstOssSrcClass GstOssSrcClass;
struct _GstOssSrc {
GstElement element;
/* pads */
GstPad *srcpad;
/* device */
gchar *device;
/* sound card */
gint fd;
/* audio parameters */
gint format;
gint channels;
gint frequency;
/* blocking */
gulong curoffset;
gulong bytes_per_read;
gulong seq;
};
struct _GstOssSrcClass {
GstElementClass parent_class;
};
GType gst_osssrc_get_type(void);
gboolean gst_osssrc_factory_init (GstPlugin *plugin);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_OSSSRC_H__ */