gstidentity.c \
gstfakesink.c \
gstdisksrc.c \
- gstasyncdisksrc.c \
gstfdsrc.c \
gstaudiosink.c \
gstaudiosrc.c \
gstidentity.h \
gstfakesink.h \
gstdisksrc.h \
- gstasyncdisksrc.h \
gstfdsrc.h \
gsthttpsrc.h \
gstaudiosink.h \
+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
- *
- * gstasyncdisksrc.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 <unistd.h>
-#include <sys/mman.h>
-
-//#define GST_DEBUG_ENABLED
-
-#include "gstasyncdisksrc.h"
-
-
-GstElementDetails gst_asyncdisksrc_details = {
- "Asynchronous Disk Source",
- "Source/File",
- "Read from arbitrary point in a file",
- VERSION,
- "Erik Walthinsen <omega@cse.ogi.edu>",
- "(C) 1999",
-};
-
-
-/* AsyncDiskSrc signals and args */
-enum {
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum {
- ARG_0,
- ARG_LOCATION,
- ARG_BYTESPERREAD,
- ARG_OFFSET,
- ARG_SIZE,
-};
-
-
-static void gst_asyncdisksrc_class_init (GstAsyncDiskSrcClass *klass);
-static void gst_asyncdisksrc_init (GstAsyncDiskSrc *asyncdisksrc);
-
-static void gst_asyncdisksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
-static void gst_asyncdisksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-
-static GstBuffer * gst_asyncdisksrc_get (GstPad *pad);
-static GstBuffer * gst_asyncdisksrc_get_region (GstPad *pad, gulong offset, gulong size);
-
-static GstElementStateReturn gst_asyncdisksrc_change_state (GstElement *element);
-
-
-static GstElementClass *parent_class = NULL;
-//static guint gst_asyncdisksrc_signals[LAST_SIGNAL] = { 0 };
-
-GtkType
-gst_asyncdisksrc_get_type(void)
-{
- static GtkType asyncdisksrc_type = 0;
-
- if (!asyncdisksrc_type) {
- static const GtkTypeInfo asyncdisksrc_info = {
- "GstAsyncDiskSrc",
- sizeof(GstAsyncDiskSrc),
- sizeof(GstAsyncDiskSrcClass),
- (GtkClassInitFunc)gst_asyncdisksrc_class_init,
- (GtkObjectInitFunc)gst_asyncdisksrc_init,
- (GtkArgSetFunc)gst_asyncdisksrc_set_arg,
- (GtkArgGetFunc)gst_asyncdisksrc_get_arg,
- (GtkClassInitFunc)NULL,
- };
- asyncdisksrc_type = gtk_type_unique (GST_TYPE_ELEMENT, &asyncdisksrc_info);
- }
- return asyncdisksrc_type;
-}
-
-static void
-gst_asyncdisksrc_class_init (GstAsyncDiskSrcClass *klass)
-{
- GtkObjectClass *gtkobject_class;
- GstElementClass *gstelement_class;
-
- gtkobject_class = (GtkObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
-
- parent_class = gtk_type_class (GST_TYPE_ELEMENT);
-
- gtk_object_add_arg_type ("GstAsyncDiskSrc::location", GST_TYPE_FILENAME,
- GTK_ARG_READWRITE, ARG_LOCATION);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::bytesperread", GTK_TYPE_INT,
- GTK_ARG_READWRITE, ARG_BYTESPERREAD);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::offset", GTK_TYPE_LONG,
- GTK_ARG_READWRITE, ARG_OFFSET);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::size", GTK_TYPE_LONG,
- GTK_ARG_READABLE, ARG_SIZE);
-
- gtkobject_class->set_arg = gst_asyncdisksrc_set_arg;
- gtkobject_class->get_arg = gst_asyncdisksrc_get_arg;
-
- gstelement_class->change_state = gst_asyncdisksrc_change_state;
-}
-
-static void
-gst_asyncdisksrc_init (GstAsyncDiskSrc *asyncdisksrc)
-{
-// GST_FLAG_SET (asyncdisksrc, GST_SRC_ASYNC);
-
- asyncdisksrc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_get_function (asyncdisksrc->srcpad,gst_asyncdisksrc_get);
- gst_pad_set_getregion_function (asyncdisksrc->srcpad,gst_asyncdisksrc_get_region);
- gst_element_add_pad (GST_ELEMENT (asyncdisksrc), asyncdisksrc->srcpad);
-
- asyncdisksrc->filename = NULL;
- asyncdisksrc->fd = 0;
- asyncdisksrc->size = 0;
- asyncdisksrc->map = NULL;
- asyncdisksrc->curoffset = 0;
- asyncdisksrc->bytes_per_read = 4096;
- asyncdisksrc->seq = 0;
- asyncdisksrc->new_seek = FALSE;
-}
-
-
-static void
-gst_asyncdisksrc_set_arg (GtkObject *object, GtkArg *arg, guint id)
-{
- GstAsyncDiskSrc *src;
-
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_ASYNCDISKSRC (object));
-
- src = GST_ASYNCDISKSRC (object);
-
- switch(id) {
- case ARG_LOCATION:
- /* the element must be stopped in order to do this */
- g_return_if_fail (GST_STATE (src) < GST_STATE_PLAYING);
-
- if (src->filename) g_free (src->filename);
- /* clear the filename if we get a NULL (is that possible?) */
- if (GTK_VALUE_STRING (*arg) == NULL) {
- gst_element_set_state (GST_ELEMENT (object), GST_STATE_NULL);
- src->filename = NULL;
- /* otherwise set the new filename */
- } else {
- src->filename = g_strdup (GTK_VALUE_STRING (*arg));
- }
- break;
- case ARG_BYTESPERREAD:
- src->bytes_per_read = GTK_VALUE_INT (*arg);
- break;
- case ARG_OFFSET:
- src->curoffset = GTK_VALUE_LONG (*arg);
- src->new_seek = TRUE;
- break;
- default:
- break;
- }
-}
-
-static void
-gst_asyncdisksrc_get_arg (GtkObject *object, GtkArg *arg, guint id)
-{
- GstAsyncDiskSrc *src;
-
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_ASYNCDISKSRC (object));
-
- src = GST_ASYNCDISKSRC (object);
-
- switch (id) {
- case ARG_LOCATION:
- GTK_VALUE_STRING (*arg) = src->filename;
- break;
- case ARG_BYTESPERREAD:
- GTK_VALUE_INT (*arg) = src->bytes_per_read;
- break;
- case ARG_OFFSET:
- GTK_VALUE_LONG (*arg) = src->curoffset;
- break;
- case ARG_SIZE:
- GTK_VALUE_LONG (*arg) = src->size;
- break;
- default:
- arg->type = GTK_TYPE_INVALID;
- break;
- }
-}
-
-/**
- * gst_asyncdisksrc_get:
- * @pad: #GstPad to push a buffer from
- *
- * Push a new buffer from the asyncdisksrc at the current offset.
- */
-static GstBuffer *
-gst_asyncdisksrc_get (GstPad *pad)
-{
- GstAsyncDiskSrc *src;
- GstBuffer *buf;
-
- g_return_val_if_fail (pad != NULL, NULL);
- src = GST_ASYNCDISKSRC (gst_pad_get_parent (pad));
- g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN), NULL);
-
- /* deal with EOF state */
- if (src->curoffset >= src->size) {
- gst_element_signal_eos (GST_ELEMENT (src));
- return NULL;
- }
-
- /* create the buffer */
- // FIXME: should eventually use a bufferpool for this
- buf = gst_buffer_new ();
-
- g_return_val_if_fail (buf != NULL, NULL);
-
- /* simply set the buffer to point to the correct region of the file */
- GST_BUFFER_DATA (buf) = src->map + src->curoffset;
- GST_BUFFER_OFFSET (buf) = src->curoffset;
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
-
- if ((src->curoffset + src->bytes_per_read) > src->size) {
- GST_BUFFER_SIZE (buf) = src->size - src->curoffset;
- // FIXME: set the buffer's EOF bit here
- } else
- GST_BUFFER_SIZE (buf) = src->bytes_per_read;
-
- GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, src->curoffset, GST_BUFFER_SIZE (buf));
-
- //gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
-
- src->curoffset += GST_BUFFER_SIZE (buf);
-
- if (src->new_seek) {
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
- GST_DEBUG (0,"new seek\n");
- src->new_seek = FALSE;
- }
-
- /* we're done, return the buffer */
- return buf;
-}
-
-/**
- * gst_asyncdisksrc_get_region:
- * @src: #GstSrc to push a buffer from
- * @offset: offset in file
- * @size: number of bytes
- *
- * Push a new buffer from the asyncdisksrc of given size at given offset.
- */
-static GstBuffer *
-gst_asyncdisksrc_get_region (GstPad *pad, gulong offset, gulong size)
-{
- GstAsyncDiskSrc *src;
- GstBuffer *buf;
-
- g_return_val_if_fail (pad != NULL, NULL);
-
- src = GST_ASYNCDISKSRC (gst_pad_get_parent (pad));
-
- g_return_val_if_fail (GST_IS_ASYNCDISKSRC (src), NULL);
- g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN), NULL);
-
- /* deal with EOF state */
- if (offset >= src->size) {
- gst_element_signal_eos (GST_ELEMENT (src));
- return NULL;
- }
-
- /* create the buffer */
- // FIXME: should eventually use a bufferpool for this
- buf = gst_buffer_new ();
- g_return_val_if_fail (buf != NULL, NULL);
-
- /* simply set the buffer to point to the correct region of the file */
- GST_BUFFER_DATA (buf) = src->map + offset;
- GST_BUFFER_OFFSET (buf) = offset;
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
-
- if ((offset + size) > src->size) {
- GST_BUFFER_SIZE (buf) = src->size - offset;
- // FIXME: set the buffer's EOF bit here
- } else
- GST_BUFFER_SIZE (buf) = size;
-
- GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, offset, GST_BUFFER_SIZE (buf));
-
- /* we're done, return the buffer off now */
- return buf;
-}
-
-
-/* open the file and mmap it, necessary to go to READY state */
-static
-gboolean gst_asyncdisksrc_open_file (GstAsyncDiskSrc *src)
-{
- g_return_val_if_fail (!GST_FLAG_IS_SET (src ,GST_ASYNCDISKSRC_OPEN), FALSE);
-
- /* open the file */
- src->fd = open (src->filename, O_RDONLY);
- if (src->fd < 0) {
- perror ("open");
- gst_element_error (GST_ELEMENT (src), g_strconcat("opening file \"", src->filename, "\"", NULL));
- return FALSE;
- } else {
- /* find the file length */
- src->size = lseek (src->fd, 0, SEEK_END);
- lseek (src->fd, 0, SEEK_SET);
- /* map the file into memory */
- src->map = mmap (NULL, src->size, PROT_READ, MAP_SHARED, src->fd, 0);
- madvise (src->map,src->size, 2);
- /* collapse state if that failed */
- if (src->map == NULL) {
- close (src->fd);
- gst_element_error (GST_ELEMENT (src),"mmapping file");
- return FALSE;
- }
- GST_FLAG_SET (src, GST_ASYNCDISKSRC_OPEN);
- src->new_seek = TRUE;
- }
- return TRUE;
-}
-
-/* unmap and close the file */
-static void
-gst_asyncdisksrc_close_file (GstAsyncDiskSrc *src)
-{
- g_return_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN));
-
- /* unmap the file from memory */
- munmap (src->map, src->size);
- /* close the file */
- close (src->fd);
-
- /* zero out a lot of our state */
- src->fd = 0;
- src->size = 0;
- src->map = NULL;
- src->curoffset = 0;
- src->seq = 0;
- src->new_seek = FALSE;
-
- GST_FLAG_UNSET (src, GST_ASYNCDISKSRC_OPEN);
-}
-
-
-static GstElementStateReturn
-gst_asyncdisksrc_change_state (GstElement *element)
-{
- g_return_val_if_fail (GST_IS_ASYNCDISKSRC (element), GST_STATE_FAILURE);
-
- if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
- if (GST_FLAG_IS_SET (element, GST_ASYNCDISKSRC_OPEN))
- gst_asyncdisksrc_close_file (GST_ASYNCDISKSRC (element));
- } else {
- if (!GST_FLAG_IS_SET (element, GST_ASYNCDISKSRC_OPEN)) {
- if (!gst_asyncdisksrc_open_file (GST_ASYNCDISKSRC (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;
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
- *
- * gstasyncdisksrc.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_ASYNCDISKSRC_H__
-#define __GST_ASYNCDISKSRC_H__
-
-
-#include <gst/gst.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-
-GstElementDetails gst_asyncdisksrc_details;
-
-#define GST_TYPE_ASYNCDISKSRC \
- (gst_asyncdisksrc_get_type())
-#define GST_ASYNCDISKSRC(obj) \
- (GTK_CHECK_CAST((obj),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrc))
-#define GST_ASYNCDISKSRC_CLASS(klass) \
- (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrcClass))
-#define GST_IS_ASYNCDISKSRC(obj) \
- (GTK_CHECK_TYPE((obj),GST_TYPE_ASYNCDISKSRC))
-#define GST_IS_ASYNCDISKSRC_CLASS(obj) \
- (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_ASYNCDISKSRC))
-
-typedef enum {
- GST_ASYNCDISKSRC_OPEN = GST_ELEMENT_FLAG_LAST,
-
- GST_ASYNCDISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
-} GstAsyncDiskSrcFlags;
-
-typedef struct _GstAsyncDiskSrc GstAsyncDiskSrc;
-typedef struct _GstAsyncDiskSrcClass GstAsyncDiskSrcClass;
-
-struct _GstAsyncDiskSrc {
- GstElement element;
- /* pads */
- GstPad *srcpad;
-
- /* filename */
- gchar *filename;
- /* fd */
- gint fd;
-
- /* mapping parameters */
- gulong size; /* how long is the file? */
- guchar *map; /* where the file is mapped to */
-
- /* details for fallback synchronous read */
- gulong curoffset; /* current offset in file */
- gulong bytes_per_read; /* bytes per read */
- gboolean new_seek;
-
- gulong seq; /* buffer sequence number */
-};
-
-struct _GstAsyncDiskSrcClass {
- GstElementClass parent_class;
-};
-
-GtkType gst_asyncdisksrc_get_type(void);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-
-#endif /* __GST_ASYNCDISKSRC_H__ */
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
+#include <sys/mman.h>
-#include <gstdisksrc.h>
+//#define GST_DEBUG_ENABLED
+
+#include "gstdisksrc.h"
GstElementDetails gst_disksrc_details = {
- "Disk Source",
+ "hronous Disk Source",
"Source/File",
- "Synchronous read from a file",
+ "Read from arbitrary point in a file",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 1999",
};
-static void gst_disksrc_class_init (GstDiskSrcClass *klass);
+static void gst_disksrc_class_init (GstDiskSrcClass *klass);
static void gst_disksrc_init (GstDiskSrc *disksrc);
-static void gst_disksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
-static void gst_disksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-
-static void gst_disksrc_close_file (GstDiskSrc *src);
+static void gst_disksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
+static void gst_disksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-static GstBuffer * gst_disksrc_get (GstPad *pad);
+static GstBuffer * gst_disksrc_get (GstPad *pad);
+static GstBuffer * gst_disksrc_get_region (GstPad *pad, gulong offset, gulong size);
static GstElementStateReturn gst_disksrc_change_state (GstElement *element);
//static guint gst_disksrc_signals[LAST_SIGNAL] = { 0 };
GtkType
-gst_disksrc_get_type(void) {
+gst_disksrc_get_type(void)
+{
static GtkType disksrc_type = 0;
if (!disksrc_type) {
(GtkArgGetFunc)gst_disksrc_get_arg,
(GtkClassInitFunc)NULL,
};
- disksrc_type = gtk_type_unique(GST_TYPE_ELEMENT,&disksrc_info);
+ disksrc_type = gtk_type_unique (GST_TYPE_ELEMENT, &disksrc_info);
}
return disksrc_type;
}
GTK_ARG_READWRITE, ARG_LOCATION);
gtk_object_add_arg_type ("GstDiskSrc::bytesperread", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_BYTESPERREAD);
- gtk_object_add_arg_type ("GstDiskSrc::offset", GTK_TYPE_INT,
- GTK_ARG_READABLE, ARG_OFFSET);
- gtk_object_add_arg_type ("GstDiskSrc::size", GTK_TYPE_INT,
+ gtk_object_add_arg_type ("GstDiskSrc::offset", GTK_TYPE_LONG,
+ GTK_ARG_READWRITE, ARG_OFFSET);
+ gtk_object_add_arg_type ("GstDiskSrc::size", GTK_TYPE_LONG,
GTK_ARG_READABLE, ARG_SIZE);
gtkobject_class->set_arg = gst_disksrc_set_arg;
static void
gst_disksrc_init (GstDiskSrc *disksrc)
{
+// GST_FLAG_SET (disksrc, GST_SRC_);
+
disksrc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_get_function(disksrc->srcpad,gst_disksrc_get);
+ gst_pad_set_get_function (disksrc->srcpad,gst_disksrc_get);
+ gst_pad_set_getregion_function (disksrc->srcpad,gst_disksrc_get_region);
gst_element_add_pad (GST_ELEMENT (disksrc), disksrc->srcpad);
disksrc->filename = NULL;
disksrc->fd = 0;
+ disksrc->size = 0;
+ disksrc->map = NULL;
disksrc->curoffset = 0;
disksrc->bytes_per_read = 4096;
disksrc->seq = 0;
- disksrc->size = 0;
disksrc->new_seek = FALSE;
}
switch(id) {
case ARG_LOCATION:
- /* the element must not be playing in order to do this */
- g_return_if_fail (GST_STATE(src) < GST_STATE_PLAYING);
+ /* the element must be stopped in order to do this */
+ g_return_if_fail (GST_STATE (src) < GST_STATE_PLAYING);
if (src->filename) g_free (src->filename);
/* clear the filename if we get a NULL (is that possible?) */
case ARG_BYTESPERREAD:
src->bytes_per_read = GTK_VALUE_INT (*arg);
break;
- /*
case ARG_OFFSET:
- src->curoffset = GTK_VALUE_INT(*arg);
- lseek(src->fd,src->curoffset, SEEK_SET);
+ src->curoffset = GTK_VALUE_LONG (*arg);
src->new_seek = TRUE;
break;
- */
default:
break;
}
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_DISKSRC (object));
+
src = GST_DISKSRC (object);
switch (id) {
GTK_VALUE_INT (*arg) = src->bytes_per_read;
break;
case ARG_OFFSET:
- GTK_VALUE_INT (*arg) = src->curoffset;
+ GTK_VALUE_LONG (*arg) = src->curoffset;
break;
case ARG_SIZE:
- GTK_VALUE_INT (*arg) = src->size;
+ GTK_VALUE_LONG (*arg) = src->size;
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
+/**
+ * gst_disksrc_get:
+ * @pad: #GstPad to push a buffer from
+ *
+ * Push a new buffer from the disksrc at the current offset.
+ */
static GstBuffer *
gst_disksrc_get (GstPad *pad)
{
GstDiskSrc *src;
GstBuffer *buf;
- glong readbytes;
g_return_val_if_fail (pad != NULL, NULL);
- src = GST_DISKSRC(gst_pad_get_parent (pad));
+ src = GST_DISKSRC (gst_pad_get_parent (pad));
g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), NULL);
- g_return_val_if_fail (GST_STATE (src) >= GST_STATE_READY, NULL);
+
+ /* deal with EOF state */
+ if (src->curoffset >= src->size) {
+ gst_element_signal_eos (GST_ELEMENT (src));
+ return NULL;
+ }
/* create the buffer */
// FIXME: should eventually use a bufferpool for this
buf = gst_buffer_new ();
- g_return_val_if_fail (buf, NULL);
- /* allocate the space for the buffer data */
- GST_BUFFER_DATA (buf) = g_malloc (src->bytes_per_read);
- g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
+ g_return_val_if_fail (buf != NULL, NULL);
- /* read it in from the file */
- readbytes = read (src->fd, GST_BUFFER_DATA (buf), src->bytes_per_read);
- if (readbytes == -1) {
- perror ("read()");
- gst_buffer_unref (buf);
- return NULL;
- } else if (readbytes == 0) {
- gst_element_signal_eos (GST_ELEMENT (src));
- gst_buffer_unref (buf);
- return NULL;
- }
+ /* simply set the buffer to point to the correct region of the file */
+ GST_BUFFER_DATA (buf) = src->map + src->curoffset;
+ GST_BUFFER_OFFSET (buf) = src->curoffset;
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
- /* if we didn't get as many bytes as we asked for, we're at EOF */
- if (readbytes < src->bytes_per_read) {
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_EOS);
- GST_DEBUG (0,"setting GST_BUFFER_EOS\n");
- }
+ if ((src->curoffset + src->bytes_per_read) > src->size) {
+ GST_BUFFER_SIZE (buf) = src->size - src->curoffset;
+ // FIXME: set the buffer's EOF bit here
+ } else
+ GST_BUFFER_SIZE (buf) = src->bytes_per_read;
+
+ GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, src->curoffset, GST_BUFFER_SIZE (buf));
+
+ //gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+
+ src->curoffset += GST_BUFFER_SIZE (buf);
- /* if we have a new buffer from a seek, mark it */
if (src->new_seek) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
+ GST_DEBUG (0,"new seek\n");
src->new_seek = FALSE;
}
- GST_BUFFER_OFFSET (buf) = src->curoffset;
- GST_BUFFER_SIZE (buf) = readbytes;
- src->curoffset += readbytes;
+ /* we're done, return the buffer */
+ return buf;
+}
- GST_DEBUG (0,"pushing %d bytes with offset %d\n", GST_BUFFER_SIZE(buf), GST_BUFFER_OFFSET (buf));
- /* we're done, push the buffer off now */
- GST_DEBUG (0,"returning %d bytes with offset %d done\n", GST_BUFFER_SIZE(buf), GST_BUFFER_OFFSET (buf));
+/**
+ * gst_disksrc_get_region:
+ * @src: #GstSrc to push a buffer from
+ * @offset: offset in file
+ * @size: number of bytes
+ *
+ * Push a new buffer from the disksrc of given size at given offset.
+ */
+static GstBuffer *
+gst_disksrc_get_region (GstPad *pad, gulong offset, gulong size)
+{
+ GstDiskSrc *src;
+ GstBuffer *buf;
+
+ g_return_val_if_fail (pad != NULL, NULL);
+
+ src = GST_DISKSRC (gst_pad_get_parent (pad));
+
+ g_return_val_if_fail (GST_IS_DISKSRC (src), NULL);
+ g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), NULL);
+
+ /* deal with EOF state */
+ if (offset >= src->size) {
+ gst_element_signal_eos (GST_ELEMENT (src));
+ return NULL;
+ }
+
+ /* create the buffer */
+ // FIXME: should eventually use a bufferpool for this
+ buf = gst_buffer_new ();
+ g_return_val_if_fail (buf != NULL, NULL);
+
+ /* simply set the buffer to point to the correct region of the file */
+ GST_BUFFER_DATA (buf) = src->map + offset;
+ GST_BUFFER_OFFSET (buf) = offset;
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
+
+ if ((offset + size) > src->size) {
+ GST_BUFFER_SIZE (buf) = src->size - offset;
+ // FIXME: set the buffer's EOF bit here
+ } else
+ GST_BUFFER_SIZE (buf) = size;
+
+ GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, offset, GST_BUFFER_SIZE (buf));
+
+ /* we're done, return the buffer off now */
return buf;
}
-/* open the file, necessary to go to RUNNING state */
-static gboolean
-gst_disksrc_open_file (GstDiskSrc *src)
+/* open the file and mmap it, necessary to go to READY state */
+static
+gboolean gst_disksrc_open_file (GstDiskSrc *src)
{
- struct stat f_stat;
-
- g_return_val_if_fail (!GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), FALSE);
- g_return_val_if_fail (src->filename != NULL, FALSE);
+ g_return_val_if_fail (!GST_FLAG_IS_SET (src ,GST_DISKSRC_OPEN), FALSE);
/* open the file */
src->fd = open (src->filename, O_RDONLY);
if (src->fd < 0) {
- perror ("open()");
- gst_element_error (GST_ELEMENT (src), "opening file");
+ perror ("open");
+ gst_element_error (GST_ELEMENT (src), g_strconcat("opening file \"", src->filename, "\"", NULL));
return FALSE;
+ } else {
+ /* find the file length */
+ src->size = lseek (src->fd, 0, SEEK_END);
+ lseek (src->fd, 0, SEEK_SET);
+ /* map the file into memory */
+ src->map = mmap (NULL, src->size, PROT_READ, MAP_SHARED, src->fd, 0);
+ madvise (src->map,src->size, 2);
+ /* collapse state if that failed */
+ if (src->map == NULL) {
+ close (src->fd);
+ gst_element_error (GST_ELEMENT (src),"mmapping file");
+ return FALSE;
+ }
+ GST_FLAG_SET (src, GST_DISKSRC_OPEN);
+ src->new_seek = TRUE;
}
- if (fstat (src->fd, &f_stat) < 0) {
- perror("fstat()");
- }
- else {
- src->size = f_stat.st_size;
- GST_DEBUG (0,"gstdisksrc: file size %ld\n", src->size);
- }
- GST_FLAG_SET (src, GST_DISKSRC_OPEN);
return TRUE;
}
-/* close the file */
+/* unmap and close the file */
static void
gst_disksrc_close_file (GstDiskSrc *src)
{
g_return_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN));
+ /* unmap the file from memory */
+ munmap (src->map, src->size);
/* close the file */
close (src->fd);
/* zero out a lot of our state */
src->fd = 0;
+ src->size = 0;
+ src->map = NULL;
src->curoffset = 0;
src->seq = 0;
- src->size = 0;
+ src->new_seek = FALSE;
GST_FLAG_UNSET (src, GST_DISKSRC_OPEN);
}
+
static GstElementStateReturn
gst_disksrc_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_DISKSRC (element), GST_STATE_FAILURE);
- GST_DEBUG (0,"gstdisksrc: state pending %d\n", GST_STATE_PENDING (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_DISKSRC_OPEN))
gst_disksrc_close_file (GST_DISKSRC (element));
- /* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET (element, GST_DISKSRC_OPEN)) {
- if (!gst_disksrc_open_file (GST_DISKSRC (element)))
+ if (!gst_disksrc_open_file (GST_DISKSRC (element)))
return GST_STATE_FAILURE;
}
}
- /* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
#define __GST_DISKSRC_H__
-#include <config.h>
#include <gst/gst.h>
#endif /* __cplusplus */
-extern GstElementDetails gst_disksrc_details;
-
+GstElementDetails gst_disksrc_details;
#define GST_TYPE_DISKSRC \
(gst_disksrc_get_type())
typedef enum {
GST_DISKSRC_OPEN = GST_ELEMENT_FLAG_LAST,
- GST_DISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2,
+ GST_DISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
} GstDiskSrcFlags;
typedef struct _GstDiskSrc GstDiskSrc;
/* pads */
GstPad *srcpad;
- /* file state */
+ /* filename */
gchar *filename;
+ /* fd */
gint fd;
+ /* mapping parameters */
+ gulong size; /* how long is the file? */
+ guchar *map; /* where the file is mapped to */
+
+ /* details for fallback synchronous read */
gulong curoffset; /* current offset in file */
gulong bytes_per_read; /* bytes per read */
gboolean new_seek;
gulong seq; /* buffer sequence number */
- gulong size;
};
struct _GstDiskSrcClass {
#include <gst/gst.h>
-#include "gstasyncdisksrc.h"
#include "gstaudiosink.h"
#include "gstaudiosrc.h"
#include "gstdisksrc.h"
};
static struct _elements_entry _elements[] = {
- { "fakesrc", gst_fakesrc_get_type, &gst_fakesrc_details, NULL },
- { "fakesink", gst_fakesink_get_type, &gst_fakesink_details, NULL },
- { "asyncdisksrc", gst_asyncdisksrc_get_type, &gst_asyncdisksrc_details, NULL },
- { "audiosink", gst_audiosink_get_type, &gst_audiosink_details, gst_audiosink_factory_init },
- { "audiosrc", gst_audiosrc_get_type, &gst_audiosrc_details, NULL },
- { "disksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
- { "identity", gst_identity_get_type, &gst_identity_details, NULL },
- { "fdsink", gst_fdsink_get_type, &gst_fdsink_details, NULL },
- { "fdsrc", gst_fdsrc_get_type, &gst_fdsrc_details, NULL },
- { "pipefilter", gst_pipefilter_get_type, &gst_pipefilter_details, NULL },
- { "sinesrc", gst_sinesrc_get_type, &gst_sinesrc_details, NULL },
- { "tee", gst_tee_get_type, &gst_tee_details, gst_tee_factory_init },
+ { "fakesrc", gst_fakesrc_get_type, &gst_fakesrc_details, NULL },
+ { "fakesink", gst_fakesink_get_type, &gst_fakesink_details, NULL },
+ { "asyncdisksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
+ { "audiosink", gst_audiosink_get_type, &gst_audiosink_details, gst_audiosink_factory_init },
+ { "audiosrc", gst_audiosrc_get_type, &gst_audiosrc_details, NULL },
+ { "disksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
+ { "identity", gst_identity_get_type, &gst_identity_details, NULL },
+ { "fdsink", gst_fdsink_get_type, &gst_fdsink_details, NULL },
+ { "fdsrc", gst_fdsrc_get_type, &gst_fdsrc_details, NULL },
+ { "pipefilter", gst_pipefilter_get_type, &gst_pipefilter_details, NULL },
+ { "sinesrc", gst_sinesrc_get_type, &gst_sinesrc_details, NULL },
+ { "tee", gst_tee_get_type, &gst_tee_details, gst_tee_factory_init },
#if HAVE_LIBGHTTP
{ "httpsrc", gst_httpsrc_get_type, &gst_httpsrc_details, NULL },
gstidentity.c \
gstfakesink.c \
gstdisksrc.c \
- gstasyncdisksrc.c \
gstfdsrc.c \
gstaudiosink.c \
gstaudiosrc.c \
gstidentity.h \
gstfakesink.h \
gstdisksrc.h \
- gstasyncdisksrc.h \
gstfdsrc.h \
gsthttpsrc.h \
gstaudiosink.h \
+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
- *
- * gstasyncdisksrc.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 <unistd.h>
-#include <sys/mman.h>
-
-//#define GST_DEBUG_ENABLED
-
-#include "gstasyncdisksrc.h"
-
-
-GstElementDetails gst_asyncdisksrc_details = {
- "Asynchronous Disk Source",
- "Source/File",
- "Read from arbitrary point in a file",
- VERSION,
- "Erik Walthinsen <omega@cse.ogi.edu>",
- "(C) 1999",
-};
-
-
-/* AsyncDiskSrc signals and args */
-enum {
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum {
- ARG_0,
- ARG_LOCATION,
- ARG_BYTESPERREAD,
- ARG_OFFSET,
- ARG_SIZE,
-};
-
-
-static void gst_asyncdisksrc_class_init (GstAsyncDiskSrcClass *klass);
-static void gst_asyncdisksrc_init (GstAsyncDiskSrc *asyncdisksrc);
-
-static void gst_asyncdisksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
-static void gst_asyncdisksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-
-static GstBuffer * gst_asyncdisksrc_get (GstPad *pad);
-static GstBuffer * gst_asyncdisksrc_get_region (GstPad *pad, gulong offset, gulong size);
-
-static GstElementStateReturn gst_asyncdisksrc_change_state (GstElement *element);
-
-
-static GstElementClass *parent_class = NULL;
-//static guint gst_asyncdisksrc_signals[LAST_SIGNAL] = { 0 };
-
-GtkType
-gst_asyncdisksrc_get_type(void)
-{
- static GtkType asyncdisksrc_type = 0;
-
- if (!asyncdisksrc_type) {
- static const GtkTypeInfo asyncdisksrc_info = {
- "GstAsyncDiskSrc",
- sizeof(GstAsyncDiskSrc),
- sizeof(GstAsyncDiskSrcClass),
- (GtkClassInitFunc)gst_asyncdisksrc_class_init,
- (GtkObjectInitFunc)gst_asyncdisksrc_init,
- (GtkArgSetFunc)gst_asyncdisksrc_set_arg,
- (GtkArgGetFunc)gst_asyncdisksrc_get_arg,
- (GtkClassInitFunc)NULL,
- };
- asyncdisksrc_type = gtk_type_unique (GST_TYPE_ELEMENT, &asyncdisksrc_info);
- }
- return asyncdisksrc_type;
-}
-
-static void
-gst_asyncdisksrc_class_init (GstAsyncDiskSrcClass *klass)
-{
- GtkObjectClass *gtkobject_class;
- GstElementClass *gstelement_class;
-
- gtkobject_class = (GtkObjectClass*)klass;
- gstelement_class = (GstElementClass*)klass;
-
- parent_class = gtk_type_class (GST_TYPE_ELEMENT);
-
- gtk_object_add_arg_type ("GstAsyncDiskSrc::location", GST_TYPE_FILENAME,
- GTK_ARG_READWRITE, ARG_LOCATION);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::bytesperread", GTK_TYPE_INT,
- GTK_ARG_READWRITE, ARG_BYTESPERREAD);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::offset", GTK_TYPE_LONG,
- GTK_ARG_READWRITE, ARG_OFFSET);
- gtk_object_add_arg_type ("GstAsyncDiskSrc::size", GTK_TYPE_LONG,
- GTK_ARG_READABLE, ARG_SIZE);
-
- gtkobject_class->set_arg = gst_asyncdisksrc_set_arg;
- gtkobject_class->get_arg = gst_asyncdisksrc_get_arg;
-
- gstelement_class->change_state = gst_asyncdisksrc_change_state;
-}
-
-static void
-gst_asyncdisksrc_init (GstAsyncDiskSrc *asyncdisksrc)
-{
-// GST_FLAG_SET (asyncdisksrc, GST_SRC_ASYNC);
-
- asyncdisksrc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_get_function (asyncdisksrc->srcpad,gst_asyncdisksrc_get);
- gst_pad_set_getregion_function (asyncdisksrc->srcpad,gst_asyncdisksrc_get_region);
- gst_element_add_pad (GST_ELEMENT (asyncdisksrc), asyncdisksrc->srcpad);
-
- asyncdisksrc->filename = NULL;
- asyncdisksrc->fd = 0;
- asyncdisksrc->size = 0;
- asyncdisksrc->map = NULL;
- asyncdisksrc->curoffset = 0;
- asyncdisksrc->bytes_per_read = 4096;
- asyncdisksrc->seq = 0;
- asyncdisksrc->new_seek = FALSE;
-}
-
-
-static void
-gst_asyncdisksrc_set_arg (GtkObject *object, GtkArg *arg, guint id)
-{
- GstAsyncDiskSrc *src;
-
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_ASYNCDISKSRC (object));
-
- src = GST_ASYNCDISKSRC (object);
-
- switch(id) {
- case ARG_LOCATION:
- /* the element must be stopped in order to do this */
- g_return_if_fail (GST_STATE (src) < GST_STATE_PLAYING);
-
- if (src->filename) g_free (src->filename);
- /* clear the filename if we get a NULL (is that possible?) */
- if (GTK_VALUE_STRING (*arg) == NULL) {
- gst_element_set_state (GST_ELEMENT (object), GST_STATE_NULL);
- src->filename = NULL;
- /* otherwise set the new filename */
- } else {
- src->filename = g_strdup (GTK_VALUE_STRING (*arg));
- }
- break;
- case ARG_BYTESPERREAD:
- src->bytes_per_read = GTK_VALUE_INT (*arg);
- break;
- case ARG_OFFSET:
- src->curoffset = GTK_VALUE_LONG (*arg);
- src->new_seek = TRUE;
- break;
- default:
- break;
- }
-}
-
-static void
-gst_asyncdisksrc_get_arg (GtkObject *object, GtkArg *arg, guint id)
-{
- GstAsyncDiskSrc *src;
-
- /* it's not null if we got it, but it might not be ours */
- g_return_if_fail (GST_IS_ASYNCDISKSRC (object));
-
- src = GST_ASYNCDISKSRC (object);
-
- switch (id) {
- case ARG_LOCATION:
- GTK_VALUE_STRING (*arg) = src->filename;
- break;
- case ARG_BYTESPERREAD:
- GTK_VALUE_INT (*arg) = src->bytes_per_read;
- break;
- case ARG_OFFSET:
- GTK_VALUE_LONG (*arg) = src->curoffset;
- break;
- case ARG_SIZE:
- GTK_VALUE_LONG (*arg) = src->size;
- break;
- default:
- arg->type = GTK_TYPE_INVALID;
- break;
- }
-}
-
-/**
- * gst_asyncdisksrc_get:
- * @pad: #GstPad to push a buffer from
- *
- * Push a new buffer from the asyncdisksrc at the current offset.
- */
-static GstBuffer *
-gst_asyncdisksrc_get (GstPad *pad)
-{
- GstAsyncDiskSrc *src;
- GstBuffer *buf;
-
- g_return_val_if_fail (pad != NULL, NULL);
- src = GST_ASYNCDISKSRC (gst_pad_get_parent (pad));
- g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN), NULL);
-
- /* deal with EOF state */
- if (src->curoffset >= src->size) {
- gst_element_signal_eos (GST_ELEMENT (src));
- return NULL;
- }
-
- /* create the buffer */
- // FIXME: should eventually use a bufferpool for this
- buf = gst_buffer_new ();
-
- g_return_val_if_fail (buf != NULL, NULL);
-
- /* simply set the buffer to point to the correct region of the file */
- GST_BUFFER_DATA (buf) = src->map + src->curoffset;
- GST_BUFFER_OFFSET (buf) = src->curoffset;
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
-
- if ((src->curoffset + src->bytes_per_read) > src->size) {
- GST_BUFFER_SIZE (buf) = src->size - src->curoffset;
- // FIXME: set the buffer's EOF bit here
- } else
- GST_BUFFER_SIZE (buf) = src->bytes_per_read;
-
- GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, src->curoffset, GST_BUFFER_SIZE (buf));
-
- //gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
-
- src->curoffset += GST_BUFFER_SIZE (buf);
-
- if (src->new_seek) {
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
- GST_DEBUG (0,"new seek\n");
- src->new_seek = FALSE;
- }
-
- /* we're done, return the buffer */
- return buf;
-}
-
-/**
- * gst_asyncdisksrc_get_region:
- * @src: #GstSrc to push a buffer from
- * @offset: offset in file
- * @size: number of bytes
- *
- * Push a new buffer from the asyncdisksrc of given size at given offset.
- */
-static GstBuffer *
-gst_asyncdisksrc_get_region (GstPad *pad, gulong offset, gulong size)
-{
- GstAsyncDiskSrc *src;
- GstBuffer *buf;
-
- g_return_val_if_fail (pad != NULL, NULL);
-
- src = GST_ASYNCDISKSRC (gst_pad_get_parent (pad));
-
- g_return_val_if_fail (GST_IS_ASYNCDISKSRC (src), NULL);
- g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN), NULL);
-
- /* deal with EOF state */
- if (offset >= src->size) {
- gst_element_signal_eos (GST_ELEMENT (src));
- return NULL;
- }
-
- /* create the buffer */
- // FIXME: should eventually use a bufferpool for this
- buf = gst_buffer_new ();
- g_return_val_if_fail (buf != NULL, NULL);
-
- /* simply set the buffer to point to the correct region of the file */
- GST_BUFFER_DATA (buf) = src->map + offset;
- GST_BUFFER_OFFSET (buf) = offset;
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
-
- if ((offset + size) > src->size) {
- GST_BUFFER_SIZE (buf) = src->size - offset;
- // FIXME: set the buffer's EOF bit here
- } else
- GST_BUFFER_SIZE (buf) = size;
-
- GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, offset, GST_BUFFER_SIZE (buf));
-
- /* we're done, return the buffer off now */
- return buf;
-}
-
-
-/* open the file and mmap it, necessary to go to READY state */
-static
-gboolean gst_asyncdisksrc_open_file (GstAsyncDiskSrc *src)
-{
- g_return_val_if_fail (!GST_FLAG_IS_SET (src ,GST_ASYNCDISKSRC_OPEN), FALSE);
-
- /* open the file */
- src->fd = open (src->filename, O_RDONLY);
- if (src->fd < 0) {
- perror ("open");
- gst_element_error (GST_ELEMENT (src), g_strconcat("opening file \"", src->filename, "\"", NULL));
- return FALSE;
- } else {
- /* find the file length */
- src->size = lseek (src->fd, 0, SEEK_END);
- lseek (src->fd, 0, SEEK_SET);
- /* map the file into memory */
- src->map = mmap (NULL, src->size, PROT_READ, MAP_SHARED, src->fd, 0);
- madvise (src->map,src->size, 2);
- /* collapse state if that failed */
- if (src->map == NULL) {
- close (src->fd);
- gst_element_error (GST_ELEMENT (src),"mmapping file");
- return FALSE;
- }
- GST_FLAG_SET (src, GST_ASYNCDISKSRC_OPEN);
- src->new_seek = TRUE;
- }
- return TRUE;
-}
-
-/* unmap and close the file */
-static void
-gst_asyncdisksrc_close_file (GstAsyncDiskSrc *src)
-{
- g_return_if_fail (GST_FLAG_IS_SET (src, GST_ASYNCDISKSRC_OPEN));
-
- /* unmap the file from memory */
- munmap (src->map, src->size);
- /* close the file */
- close (src->fd);
-
- /* zero out a lot of our state */
- src->fd = 0;
- src->size = 0;
- src->map = NULL;
- src->curoffset = 0;
- src->seq = 0;
- src->new_seek = FALSE;
-
- GST_FLAG_UNSET (src, GST_ASYNCDISKSRC_OPEN);
-}
-
-
-static GstElementStateReturn
-gst_asyncdisksrc_change_state (GstElement *element)
-{
- g_return_val_if_fail (GST_IS_ASYNCDISKSRC (element), GST_STATE_FAILURE);
-
- if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
- if (GST_FLAG_IS_SET (element, GST_ASYNCDISKSRC_OPEN))
- gst_asyncdisksrc_close_file (GST_ASYNCDISKSRC (element));
- } else {
- if (!GST_FLAG_IS_SET (element, GST_ASYNCDISKSRC_OPEN)) {
- if (!gst_asyncdisksrc_open_file (GST_ASYNCDISKSRC (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;
-}
+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
- *
- * gstasyncdisksrc.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_ASYNCDISKSRC_H__
-#define __GST_ASYNCDISKSRC_H__
-
-
-#include <gst/gst.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-
-GstElementDetails gst_asyncdisksrc_details;
-
-#define GST_TYPE_ASYNCDISKSRC \
- (gst_asyncdisksrc_get_type())
-#define GST_ASYNCDISKSRC(obj) \
- (GTK_CHECK_CAST((obj),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrc))
-#define GST_ASYNCDISKSRC_CLASS(klass) \
- (GTK_CHECK_CLASS_CAST((klass),GST_TYPE_ASYNCDISKSRC,GstAsyncDiskSrcClass))
-#define GST_IS_ASYNCDISKSRC(obj) \
- (GTK_CHECK_TYPE((obj),GST_TYPE_ASYNCDISKSRC))
-#define GST_IS_ASYNCDISKSRC_CLASS(obj) \
- (GTK_CHECK_CLASS_TYPE((klass),GST_TYPE_ASYNCDISKSRC))
-
-typedef enum {
- GST_ASYNCDISKSRC_OPEN = GST_ELEMENT_FLAG_LAST,
-
- GST_ASYNCDISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
-} GstAsyncDiskSrcFlags;
-
-typedef struct _GstAsyncDiskSrc GstAsyncDiskSrc;
-typedef struct _GstAsyncDiskSrcClass GstAsyncDiskSrcClass;
-
-struct _GstAsyncDiskSrc {
- GstElement element;
- /* pads */
- GstPad *srcpad;
-
- /* filename */
- gchar *filename;
- /* fd */
- gint fd;
-
- /* mapping parameters */
- gulong size; /* how long is the file? */
- guchar *map; /* where the file is mapped to */
-
- /* details for fallback synchronous read */
- gulong curoffset; /* current offset in file */
- gulong bytes_per_read; /* bytes per read */
- gboolean new_seek;
-
- gulong seq; /* buffer sequence number */
-};
-
-struct _GstAsyncDiskSrcClass {
- GstElementClass parent_class;
-};
-
-GtkType gst_asyncdisksrc_get_type(void);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-
-#endif /* __GST_ASYNCDISKSRC_H__ */
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
+#include <sys/mman.h>
-#include <gstdisksrc.h>
+//#define GST_DEBUG_ENABLED
+
+#include "gstdisksrc.h"
GstElementDetails gst_disksrc_details = {
- "Disk Source",
+ "hronous Disk Source",
"Source/File",
- "Synchronous read from a file",
+ "Read from arbitrary point in a file",
VERSION,
"Erik Walthinsen <omega@cse.ogi.edu>",
"(C) 1999",
};
-static void gst_disksrc_class_init (GstDiskSrcClass *klass);
+static void gst_disksrc_class_init (GstDiskSrcClass *klass);
static void gst_disksrc_init (GstDiskSrc *disksrc);
-static void gst_disksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
-static void gst_disksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-
-static void gst_disksrc_close_file (GstDiskSrc *src);
+static void gst_disksrc_set_arg (GtkObject *object, GtkArg *arg, guint id);
+static void gst_disksrc_get_arg (GtkObject *object, GtkArg *arg, guint id);
-static GstBuffer * gst_disksrc_get (GstPad *pad);
+static GstBuffer * gst_disksrc_get (GstPad *pad);
+static GstBuffer * gst_disksrc_get_region (GstPad *pad, gulong offset, gulong size);
static GstElementStateReturn gst_disksrc_change_state (GstElement *element);
//static guint gst_disksrc_signals[LAST_SIGNAL] = { 0 };
GtkType
-gst_disksrc_get_type(void) {
+gst_disksrc_get_type(void)
+{
static GtkType disksrc_type = 0;
if (!disksrc_type) {
(GtkArgGetFunc)gst_disksrc_get_arg,
(GtkClassInitFunc)NULL,
};
- disksrc_type = gtk_type_unique(GST_TYPE_ELEMENT,&disksrc_info);
+ disksrc_type = gtk_type_unique (GST_TYPE_ELEMENT, &disksrc_info);
}
return disksrc_type;
}
GTK_ARG_READWRITE, ARG_LOCATION);
gtk_object_add_arg_type ("GstDiskSrc::bytesperread", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_BYTESPERREAD);
- gtk_object_add_arg_type ("GstDiskSrc::offset", GTK_TYPE_INT,
- GTK_ARG_READABLE, ARG_OFFSET);
- gtk_object_add_arg_type ("GstDiskSrc::size", GTK_TYPE_INT,
+ gtk_object_add_arg_type ("GstDiskSrc::offset", GTK_TYPE_LONG,
+ GTK_ARG_READWRITE, ARG_OFFSET);
+ gtk_object_add_arg_type ("GstDiskSrc::size", GTK_TYPE_LONG,
GTK_ARG_READABLE, ARG_SIZE);
gtkobject_class->set_arg = gst_disksrc_set_arg;
static void
gst_disksrc_init (GstDiskSrc *disksrc)
{
+// GST_FLAG_SET (disksrc, GST_SRC_);
+
disksrc->srcpad = gst_pad_new ("src", GST_PAD_SRC);
- gst_pad_set_get_function(disksrc->srcpad,gst_disksrc_get);
+ gst_pad_set_get_function (disksrc->srcpad,gst_disksrc_get);
+ gst_pad_set_getregion_function (disksrc->srcpad,gst_disksrc_get_region);
gst_element_add_pad (GST_ELEMENT (disksrc), disksrc->srcpad);
disksrc->filename = NULL;
disksrc->fd = 0;
+ disksrc->size = 0;
+ disksrc->map = NULL;
disksrc->curoffset = 0;
disksrc->bytes_per_read = 4096;
disksrc->seq = 0;
- disksrc->size = 0;
disksrc->new_seek = FALSE;
}
switch(id) {
case ARG_LOCATION:
- /* the element must not be playing in order to do this */
- g_return_if_fail (GST_STATE(src) < GST_STATE_PLAYING);
+ /* the element must be stopped in order to do this */
+ g_return_if_fail (GST_STATE (src) < GST_STATE_PLAYING);
if (src->filename) g_free (src->filename);
/* clear the filename if we get a NULL (is that possible?) */
case ARG_BYTESPERREAD:
src->bytes_per_read = GTK_VALUE_INT (*arg);
break;
- /*
case ARG_OFFSET:
- src->curoffset = GTK_VALUE_INT(*arg);
- lseek(src->fd,src->curoffset, SEEK_SET);
+ src->curoffset = GTK_VALUE_LONG (*arg);
src->new_seek = TRUE;
break;
- */
default:
break;
}
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_DISKSRC (object));
+
src = GST_DISKSRC (object);
switch (id) {
GTK_VALUE_INT (*arg) = src->bytes_per_read;
break;
case ARG_OFFSET:
- GTK_VALUE_INT (*arg) = src->curoffset;
+ GTK_VALUE_LONG (*arg) = src->curoffset;
break;
case ARG_SIZE:
- GTK_VALUE_INT (*arg) = src->size;
+ GTK_VALUE_LONG (*arg) = src->size;
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
+/**
+ * gst_disksrc_get:
+ * @pad: #GstPad to push a buffer from
+ *
+ * Push a new buffer from the disksrc at the current offset.
+ */
static GstBuffer *
gst_disksrc_get (GstPad *pad)
{
GstDiskSrc *src;
GstBuffer *buf;
- glong readbytes;
g_return_val_if_fail (pad != NULL, NULL);
- src = GST_DISKSRC(gst_pad_get_parent (pad));
+ src = GST_DISKSRC (gst_pad_get_parent (pad));
g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), NULL);
- g_return_val_if_fail (GST_STATE (src) >= GST_STATE_READY, NULL);
+
+ /* deal with EOF state */
+ if (src->curoffset >= src->size) {
+ gst_element_signal_eos (GST_ELEMENT (src));
+ return NULL;
+ }
/* create the buffer */
// FIXME: should eventually use a bufferpool for this
buf = gst_buffer_new ();
- g_return_val_if_fail (buf, NULL);
- /* allocate the space for the buffer data */
- GST_BUFFER_DATA (buf) = g_malloc (src->bytes_per_read);
- g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
+ g_return_val_if_fail (buf != NULL, NULL);
- /* read it in from the file */
- readbytes = read (src->fd, GST_BUFFER_DATA (buf), src->bytes_per_read);
- if (readbytes == -1) {
- perror ("read()");
- gst_buffer_unref (buf);
- return NULL;
- } else if (readbytes == 0) {
- gst_element_signal_eos (GST_ELEMENT (src));
- gst_buffer_unref (buf);
- return NULL;
- }
+ /* simply set the buffer to point to the correct region of the file */
+ GST_BUFFER_DATA (buf) = src->map + src->curoffset;
+ GST_BUFFER_OFFSET (buf) = src->curoffset;
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
- /* if we didn't get as many bytes as we asked for, we're at EOF */
- if (readbytes < src->bytes_per_read) {
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_EOS);
- GST_DEBUG (0,"setting GST_BUFFER_EOS\n");
- }
+ if ((src->curoffset + src->bytes_per_read) > src->size) {
+ GST_BUFFER_SIZE (buf) = src->size - src->curoffset;
+ // FIXME: set the buffer's EOF bit here
+ } else
+ GST_BUFFER_SIZE (buf) = src->bytes_per_read;
+
+ GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, src->curoffset, GST_BUFFER_SIZE (buf));
+
+ //gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+
+ src->curoffset += GST_BUFFER_SIZE (buf);
- /* if we have a new buffer from a seek, mark it */
if (src->new_seek) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLUSH);
+ GST_DEBUG (0,"new seek\n");
src->new_seek = FALSE;
}
- GST_BUFFER_OFFSET (buf) = src->curoffset;
- GST_BUFFER_SIZE (buf) = readbytes;
- src->curoffset += readbytes;
+ /* we're done, return the buffer */
+ return buf;
+}
- GST_DEBUG (0,"pushing %d bytes with offset %d\n", GST_BUFFER_SIZE(buf), GST_BUFFER_OFFSET (buf));
- /* we're done, push the buffer off now */
- GST_DEBUG (0,"returning %d bytes with offset %d done\n", GST_BUFFER_SIZE(buf), GST_BUFFER_OFFSET (buf));
+/**
+ * gst_disksrc_get_region:
+ * @src: #GstSrc to push a buffer from
+ * @offset: offset in file
+ * @size: number of bytes
+ *
+ * Push a new buffer from the disksrc of given size at given offset.
+ */
+static GstBuffer *
+gst_disksrc_get_region (GstPad *pad, gulong offset, gulong size)
+{
+ GstDiskSrc *src;
+ GstBuffer *buf;
+
+ g_return_val_if_fail (pad != NULL, NULL);
+
+ src = GST_DISKSRC (gst_pad_get_parent (pad));
+
+ g_return_val_if_fail (GST_IS_DISKSRC (src), NULL);
+ g_return_val_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), NULL);
+
+ /* deal with EOF state */
+ if (offset >= src->size) {
+ gst_element_signal_eos (GST_ELEMENT (src));
+ return NULL;
+ }
+
+ /* create the buffer */
+ // FIXME: should eventually use a bufferpool for this
+ buf = gst_buffer_new ();
+ g_return_val_if_fail (buf != NULL, NULL);
+
+ /* simply set the buffer to point to the correct region of the file */
+ GST_BUFFER_DATA (buf) = src->map + offset;
+ GST_BUFFER_OFFSET (buf) = offset;
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_DONTFREE);
+
+ if ((offset + size) > src->size) {
+ GST_BUFFER_SIZE (buf) = src->size - offset;
+ // FIXME: set the buffer's EOF bit here
+ } else
+ GST_BUFFER_SIZE (buf) = size;
+
+ GST_DEBUG (0,"map %p, offset %ld, size %d\n", src->map, offset, GST_BUFFER_SIZE (buf));
+
+ /* we're done, return the buffer off now */
return buf;
}
-/* open the file, necessary to go to RUNNING state */
-static gboolean
-gst_disksrc_open_file (GstDiskSrc *src)
+/* open the file and mmap it, necessary to go to READY state */
+static
+gboolean gst_disksrc_open_file (GstDiskSrc *src)
{
- struct stat f_stat;
-
- g_return_val_if_fail (!GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN), FALSE);
- g_return_val_if_fail (src->filename != NULL, FALSE);
+ g_return_val_if_fail (!GST_FLAG_IS_SET (src ,GST_DISKSRC_OPEN), FALSE);
/* open the file */
src->fd = open (src->filename, O_RDONLY);
if (src->fd < 0) {
- perror ("open()");
- gst_element_error (GST_ELEMENT (src), "opening file");
+ perror ("open");
+ gst_element_error (GST_ELEMENT (src), g_strconcat("opening file \"", src->filename, "\"", NULL));
return FALSE;
+ } else {
+ /* find the file length */
+ src->size = lseek (src->fd, 0, SEEK_END);
+ lseek (src->fd, 0, SEEK_SET);
+ /* map the file into memory */
+ src->map = mmap (NULL, src->size, PROT_READ, MAP_SHARED, src->fd, 0);
+ madvise (src->map,src->size, 2);
+ /* collapse state if that failed */
+ if (src->map == NULL) {
+ close (src->fd);
+ gst_element_error (GST_ELEMENT (src),"mmapping file");
+ return FALSE;
+ }
+ GST_FLAG_SET (src, GST_DISKSRC_OPEN);
+ src->new_seek = TRUE;
}
- if (fstat (src->fd, &f_stat) < 0) {
- perror("fstat()");
- }
- else {
- src->size = f_stat.st_size;
- GST_DEBUG (0,"gstdisksrc: file size %ld\n", src->size);
- }
- GST_FLAG_SET (src, GST_DISKSRC_OPEN);
return TRUE;
}
-/* close the file */
+/* unmap and close the file */
static void
gst_disksrc_close_file (GstDiskSrc *src)
{
g_return_if_fail (GST_FLAG_IS_SET (src, GST_DISKSRC_OPEN));
+ /* unmap the file from memory */
+ munmap (src->map, src->size);
/* close the file */
close (src->fd);
/* zero out a lot of our state */
src->fd = 0;
+ src->size = 0;
+ src->map = NULL;
src->curoffset = 0;
src->seq = 0;
- src->size = 0;
+ src->new_seek = FALSE;
GST_FLAG_UNSET (src, GST_DISKSRC_OPEN);
}
+
static GstElementStateReturn
gst_disksrc_change_state (GstElement *element)
{
g_return_val_if_fail (GST_IS_DISKSRC (element), GST_STATE_FAILURE);
- GST_DEBUG (0,"gstdisksrc: state pending %d\n", GST_STATE_PENDING (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_DISKSRC_OPEN))
gst_disksrc_close_file (GST_DISKSRC (element));
- /* otherwise (READY or higher) we need to open the file */
} else {
if (!GST_FLAG_IS_SET (element, GST_DISKSRC_OPEN)) {
- if (!gst_disksrc_open_file (GST_DISKSRC (element)))
+ if (!gst_disksrc_open_file (GST_DISKSRC (element)))
return GST_STATE_FAILURE;
}
}
- /* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
#define __GST_DISKSRC_H__
-#include <config.h>
#include <gst/gst.h>
#endif /* __cplusplus */
-extern GstElementDetails gst_disksrc_details;
-
+GstElementDetails gst_disksrc_details;
#define GST_TYPE_DISKSRC \
(gst_disksrc_get_type())
typedef enum {
GST_DISKSRC_OPEN = GST_ELEMENT_FLAG_LAST,
- GST_DISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST+2,
+ GST_DISKSRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2,
} GstDiskSrcFlags;
typedef struct _GstDiskSrc GstDiskSrc;
/* pads */
GstPad *srcpad;
- /* file state */
+ /* filename */
gchar *filename;
+ /* fd */
gint fd;
+ /* mapping parameters */
+ gulong size; /* how long is the file? */
+ guchar *map; /* where the file is mapped to */
+
+ /* details for fallback synchronous read */
gulong curoffset; /* current offset in file */
gulong bytes_per_read; /* bytes per read */
gboolean new_seek;
gulong seq; /* buffer sequence number */
- gulong size;
};
struct _GstDiskSrcClass {
#include <gst/gst.h>
-#include "gstasyncdisksrc.h"
#include "gstaudiosink.h"
#include "gstaudiosrc.h"
#include "gstdisksrc.h"
};
static struct _elements_entry _elements[] = {
- { "fakesrc", gst_fakesrc_get_type, &gst_fakesrc_details, NULL },
- { "fakesink", gst_fakesink_get_type, &gst_fakesink_details, NULL },
- { "asyncdisksrc", gst_asyncdisksrc_get_type, &gst_asyncdisksrc_details, NULL },
- { "audiosink", gst_audiosink_get_type, &gst_audiosink_details, gst_audiosink_factory_init },
- { "audiosrc", gst_audiosrc_get_type, &gst_audiosrc_details, NULL },
- { "disksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
- { "identity", gst_identity_get_type, &gst_identity_details, NULL },
- { "fdsink", gst_fdsink_get_type, &gst_fdsink_details, NULL },
- { "fdsrc", gst_fdsrc_get_type, &gst_fdsrc_details, NULL },
- { "pipefilter", gst_pipefilter_get_type, &gst_pipefilter_details, NULL },
- { "sinesrc", gst_sinesrc_get_type, &gst_sinesrc_details, NULL },
- { "tee", gst_tee_get_type, &gst_tee_details, gst_tee_factory_init },
+ { "fakesrc", gst_fakesrc_get_type, &gst_fakesrc_details, NULL },
+ { "fakesink", gst_fakesink_get_type, &gst_fakesink_details, NULL },
+ { "asyncdisksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
+ { "audiosink", gst_audiosink_get_type, &gst_audiosink_details, gst_audiosink_factory_init },
+ { "audiosrc", gst_audiosrc_get_type, &gst_audiosrc_details, NULL },
+ { "disksrc", gst_disksrc_get_type, &gst_disksrc_details, NULL },
+ { "identity", gst_identity_get_type, &gst_identity_details, NULL },
+ { "fdsink", gst_fdsink_get_type, &gst_fdsink_details, NULL },
+ { "fdsrc", gst_fdsrc_get_type, &gst_fdsrc_details, NULL },
+ { "pipefilter", gst_pipefilter_get_type, &gst_pipefilter_details, NULL },
+ { "sinesrc", gst_sinesrc_get_type, &gst_sinesrc_details, NULL },
+ { "tee", gst_tee_get_type, &gst_tee_details, gst_tee_factory_init },
#if HAVE_LIBGHTTP
{ "httpsrc", gst_httpsrc_get_type, &gst_httpsrc_details, NULL },
projects / platform / upstream / gstreamer.git / commitdiff