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Implement seekability-only-if-available

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Original commit message from CVS:
Implement seekability-only-if-available
This commit is contained in:
Ronald S. Bultje 2003-09-13 01:06:53 +00:00
parent 2e7fa817e4
commit 5a26d2f709
2 changed files with 78 additions and 22 deletions
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50
gst/elements/gstfilesink.c
View file

@ -29,6 +29,9 @@
#include <errno.h>
#include "gstfilesink.h"
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
GST_DEBUG_CATEGORY (gst_filesink_debug);
#define GST_CAT_DEFAULT gst_filesink_debug
@ -56,15 +59,6 @@ enum {
ARG_LOCATION
};
GST_PAD_EVENT_MASK_FUNCTION (gst_filesink_get_event_mask,
{ GST_EVENT_SEEK, GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
{ GST_EVENT_FLUSH, 0 },
{ GST_EVENT_DISCONTINUOUS, 0 }
)
GST_PAD_QUERY_TYPE_FUNCTION (gst_filesink_get_query_types,
GST_QUERY_TOTAL,
GST_QUERY_POSITION
@ -86,6 +80,9 @@ static void gst_filesink_get_property (GObject *object, guint prop_id,
static gboolean gst_filesink_open_file (GstFileSink *sink);
static void gst_filesink_close_file (GstFileSink *sink);
static const GstEventMask *
gst_filesink_get_event_mask (GstPad *pad);
static gboolean gst_filesink_handle_event (GstPad *pad, GstEvent *event);
static gboolean gst_filesink_pad_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
@ -291,6 +288,37 @@ gst_filesink_pad_query (GstPad *pad, GstQueryType type,
return TRUE;
}
/* supported events */
static const GstEventMask *
gst_filesink_get_event_mask (GstPad *pad)
{
GstFileSink *filesink = GST_FILESINK (gst_pad_get_parent (pad));
struct stat filestat;
static const GstEventMask seek_masks[] = {
{ GST_EVENT_SEEK, GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
{ GST_EVENT_FLUSH, 0 },
{ GST_EVENT_DISCONTINUOUS, 0 },
{ 0, 0 }
}, noseek_masks[] = {
{ GST_EVENT_FLUSH, 0 },
{ 0, 0 }
}, *selected = seek_masks;
if (filesink->file != NULL) {
if (fstat (fileno (filesink->file), &filestat) == 0) {
if (S_ISFIFO (filestat.st_mode) ||
S_ISSOCK (filestat.st_mode)) {
selected = noseek_masks;
}
}
}
return selected;
}
/* handle events (search) */
static gboolean
gst_filesink_handle_event (GstPad *pad, GstEvent *event)
@ -390,7 +418,7 @@ gst_filesink_chain (GstPad *pad, GstBuffer *buf)
guint bytes_written = 0, back_pending = 0;
if (ftell(filesink->file) < filesink->data_written)
back_pending = filesink->data_written - ftell(filesink->file);
do {
while (bytes_written < GST_BUFFER_SIZE (buf)) {
size_t wrote = fwrite (GST_BUFFER_DATA (buf) + bytes_written, 1,
GST_BUFFER_SIZE (buf) - bytes_written,
filesink->file);
@ -402,7 +430,7 @@ gst_filesink_chain (GstPad *pad, GstBuffer *buf)
break;
}
bytes_written += wrote;
} while (bytes_written < GST_BUFFER_SIZE (buf));
}
filesink->data_written += bytes_written - back_pending;
}

50
plugins/elements/gstfilesink.c
View file

@ -29,6 +29,9 @@
#include <errno.h>
#include "gstfilesink.h"
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
GST_DEBUG_CATEGORY (gst_filesink_debug);
#define GST_CAT_DEFAULT gst_filesink_debug
@ -56,15 +59,6 @@ enum {
ARG_LOCATION
};
GST_PAD_EVENT_MASK_FUNCTION (gst_filesink_get_event_mask,
{ GST_EVENT_SEEK, GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
{ GST_EVENT_FLUSH, 0 },
{ GST_EVENT_DISCONTINUOUS, 0 }
)
GST_PAD_QUERY_TYPE_FUNCTION (gst_filesink_get_query_types,
GST_QUERY_TOTAL,
GST_QUERY_POSITION
@ -86,6 +80,9 @@ static void gst_filesink_get_property (GObject *object, guint prop_id,
static gboolean gst_filesink_open_file (GstFileSink *sink);
static void gst_filesink_close_file (GstFileSink *sink);
static const GstEventMask *
gst_filesink_get_event_mask (GstPad *pad);
static gboolean gst_filesink_handle_event (GstPad *pad, GstEvent *event);
static gboolean gst_filesink_pad_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
@ -291,6 +288,37 @@ gst_filesink_pad_query (GstPad *pad, GstQueryType type,
return TRUE;
}
/* supported events */
static const GstEventMask *
gst_filesink_get_event_mask (GstPad *pad)
{
GstFileSink *filesink = GST_FILESINK (gst_pad_get_parent (pad));
struct stat filestat;
static const GstEventMask seek_masks[] = {
{ GST_EVENT_SEEK, GST_SEEK_METHOD_CUR |
GST_SEEK_METHOD_SET |
GST_SEEK_METHOD_END |
GST_SEEK_FLAG_FLUSH },
{ GST_EVENT_FLUSH, 0 },
{ GST_EVENT_DISCONTINUOUS, 0 },
{ 0, 0 }
}, noseek_masks[] = {
{ GST_EVENT_FLUSH, 0 },
{ 0, 0 }
}, *selected = seek_masks;
if (filesink->file != NULL) {
if (fstat (fileno (filesink->file), &filestat) == 0) {
if (S_ISFIFO (filestat.st_mode) ||
S_ISSOCK (filestat.st_mode)) {
selected = noseek_masks;
}
}
}
return selected;
}
/* handle events (search) */
static gboolean
gst_filesink_handle_event (GstPad *pad, GstEvent *event)
@ -390,7 +418,7 @@ gst_filesink_chain (GstPad *pad, GstBuffer *buf)
guint bytes_written = 0, back_pending = 0;
if (ftell(filesink->file) < filesink->data_written)
back_pending = filesink->data_written - ftell(filesink->file);
do {
while (bytes_written < GST_BUFFER_SIZE (buf)) {
size_t wrote = fwrite (GST_BUFFER_DATA (buf) + bytes_written, 1,
GST_BUFFER_SIZE (buf) - bytes_written,
filesink->file);
@ -402,7 +430,7 @@ gst_filesink_chain (GstPad *pad, GstBuffer *buf)
break;
}
bytes_written += wrote;
} while (bytes_written < GST_BUFFER_SIZE (buf));
}
filesink->data_written += bytes_written - back_pending;
}