static gboolean
gst_gio_base_sink_stop (GstBaseSink * base_sink)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
GstGioBaseSinkClass *klass = GST_GIO_BASE_SINK_GET_CLASS (sink);
gboolean success;
GError *err = NULL;
if (klass->close_on_stop && G_IS_OUTPUT_STREAM (sink->stream)) {
GST_DEBUG_OBJECT (sink, "closing stream");
/* FIXME: can block but unfortunately we can't use async operations
* here because they require a running main loop */
success = g_output_stream_close (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_close", &err, NULL)) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("gio_output_stream_close failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("g_output_stream_close failed"));
} else {
GST_DEBUG_OBJECT (sink, "g_outut_stream_close succeeded");
}
g_object_unref (sink->stream);
sink->stream = NULL;
} else {
success = g_output_stream_flush (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err, NULL)) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("gio_output_stream_flush failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("g_output_stream_flush failed"));
} else {
GST_DEBUG_OBJECT (sink, "g_outut_stream_flush succeeded");
}
g_object_unref (sink->stream);
sink->stream = NULL;
}
return TRUE;
}
static gboolean
gst_gio_base_sink_event (GstBaseSink * base_sink, GstEvent * event)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
GstFlowReturn ret = GST_FLOW_OK;
if (sink->stream == NULL)
return TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
if (G_IS_OUTPUT_STREAM (sink->stream)) {
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
if (segment->format != GST_FORMAT_BYTES) {
GST_WARNING_OBJECT (sink, "ignored SEGMENT event in %s format",
gst_format_get_name (segment->format));
break;
}
if (GST_GIO_STREAM_IS_SEEKABLE (sink->stream)) {
ret = gst_gio_seek (sink, G_SEEKABLE (sink->stream), segment->start,
sink->cancel);
if (ret == GST_FLOW_OK)
sink->position = segment->start;
} else {
ret = GST_FLOW_NOT_SUPPORTED;
}
}
break;
case GST_EVENT_EOS:
case GST_EVENT_FLUSH_START:
if (G_IS_OUTPUT_STREAM (sink->stream)) {
gboolean success;
GError *err = NULL;
success = g_output_stream_flush (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err,
&ret)) {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("flush failed: %s", err->message));
g_clear_error (&err);
}
}
break;
default:
break;
}
if (ret == GST_FLOW_OK)
return GST_BASE_SINK_CLASS (parent_class)->event (base_sink, event);
else {
gst_event_unref (event);
return FALSE;
}
}
void
gst_gio_base_src_set_stream (GstGioBaseSrc * src, GInputStream * stream)
{
gboolean success;
GError *err = NULL;
g_return_if_fail (G_IS_INPUT_STREAM (stream));
g_return_if_fail ((GST_STATE (src) != GST_STATE_PLAYING &&
GST_STATE (src) != GST_STATE_PAUSED));
if (G_IS_INPUT_STREAM (src->stream)) {
GST_DEBUG_OBJECT (src, "closing old stream");
/* FIXME: can block but unfortunately we can't use async operations
* here because they require a running main loop */
success = g_input_stream_close (src->stream, src->cancel, &err);
if (!success && !gst_gio_error (src, "g_input_stream_close", &err, NULL)) {
GST_ELEMENT_WARNING (src, RESOURCE, CLOSE, (NULL),
("g_input_stream_close failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (src, RESOURCE, CLOSE, (NULL),
("g_input_stream_close failed"));
} else {
GST_DEBUG_OBJECT (src, "g_input_stream_close succeeded");
}
g_object_unref (src->stream);
src->stream = NULL;
}
src->stream = stream;
}
static gboolean
gst_gio_base_src_stop (GstBaseSrc * base_src)
{
GstGioBaseSrc *src = GST_GIO_BASE_SRC (base_src);
gboolean success;
GError *err = NULL;
if (G_IS_INPUT_STREAM (src->stream)) {
GST_DEBUG_OBJECT (src, "closing stream");
/* FIXME: can block but unfortunately we can't use async operations
* here because they require a running main loop */
success = g_input_stream_close (src->stream, src->cancel, &err);
if (!success && !gst_gio_error (src, "g_input_stream_close", &err, NULL)) {
GST_ELEMENT_WARNING (src, RESOURCE, CLOSE, (NULL),
("g_input_stream_close failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (src, RESOURCE, CLOSE, (NULL),
("g_input_stream_close failed"));
} else {
GST_DEBUG_OBJECT (src, "g_input_stream_close succeeded");
}
g_object_unref (src->stream);
src->stream = NULL;
}
return TRUE;
}
static GstFlowReturn
gst_gio_base_sink_render (GstBaseSink * base_sink, GstBuffer * buffer)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
gssize written;
GstMapInfo map;
gboolean success;
GError *err = NULL;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (sink->stream), GST_FLOW_ERROR);
gst_buffer_map (buffer, &map, GST_MAP_READ);
GST_LOG_OBJECT (sink,
"writing %" G_GSIZE_FORMAT " bytes to offset %" G_GUINT64_FORMAT,
map.size, sink->position);
written =
g_output_stream_write (sink->stream, map.data, map.size, sink->cancel,
&err);
gst_buffer_unmap (buffer, &map);
success = (written >= 0);
if (G_UNLIKELY (success && written < map.size)) {
/* FIXME: Can this happen? Should we handle it gracefully? gnomevfssink
* doesn't... */
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("Could not write to stream: (short write, only %"
G_GSSIZE_FORMAT " bytes of %" G_GSIZE_FORMAT " bytes written)",
written, map.size));
return GST_FLOW_ERROR;
}
if (success) {
sink->position += written;
return GST_FLOW_OK;
} else {
GstFlowReturn ret;
if (!gst_gio_error (sink, "g_output_stream_write", &err, &ret)) {
if (GST_GIO_ERROR_MATCHES (err, NO_SPACE)) {
GST_ELEMENT_ERROR (sink, RESOURCE, NO_SPACE_LEFT, (NULL),
("Could not write to stream: %s", err->message));
} else {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("Could not write to stream: %s", err->message));
}
g_clear_error (&err);
}
return ret;
}
}
static gboolean
gst_gio_sink_start (GstBaseSink * base_sink)
{
GstGioSink *sink = GST_GIO_SINK (base_sink);
GOutputStream *stream;
GCancellable *cancel = GST_GIO_BASE_SINK (sink)->cancel;
gboolean success;
GError *err = NULL;
gchar *uri;
if (sink->file == NULL) {
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("No location or GFile given"));
return FALSE;
}
uri = g_file_get_uri (sink->file);
if (!uri)
uri = g_strdup ("(null)");
stream =
G_OUTPUT_STREAM (g_file_create (sink->file, G_FILE_CREATE_NONE, cancel,
&err));
success = (stream != NULL);
if (!success && !gst_gio_error (sink, "g_file_create", &err, NULL)) {
/*if (GST_GIO_ERROR_MATCHES (err, EXISTS)) */
/* FIXME: Retry with replace if overwrite == TRUE! */
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND))
GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for writing: %s", uri, err->message));
else
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_READ, (NULL),
("Could not open location %s for writing: %s", uri, err->message));
g_free (uri);
g_clear_error (&err);
}
if (!success)
return FALSE;
GST_DEBUG_OBJECT (sink, "opened location %s", uri);
g_free (uri);
gst_gio_base_sink_set_stream (GST_GIO_BASE_SINK (sink), stream);
return GST_BASE_SINK_CLASS (parent_class)->start (base_sink);
}
static GInputStream *
gst_gio_src_get_stream (GstGioBaseSrc * bsrc)
{
GstGioSrc *src = GST_GIO_SRC (bsrc);
GError *err = NULL;
GInputStream *stream;
GCancellable *cancel = bsrc->cancel;
gchar *uri = NULL;
if (src->file == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("No location or GFile given"));
return NULL;
}
uri = g_file_get_uri (src->file);
if (!uri)
uri = g_strdup ("(null)");
stream = G_INPUT_STREAM (g_file_read (src->file, cancel, &err));
if (stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
} else if (GST_GIO_ERROR_MATCHES (err, NOT_MOUNTED)) {
gst_element_post_message (GST_ELEMENT_CAST (src),
gst_message_new_element (GST_OBJECT_CAST (src),
gst_structure_new ("not-mounted", "file", G_TYPE_FILE, src->file,
"uri", G_TYPE_STRING, uri, NULL)));
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Location %s not mounted: %s", uri, err->message));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
}
g_free (uri);
g_clear_error (&err);
return NULL;
} else if (stream == NULL) {
g_free (uri);
return NULL;
}
GST_DEBUG_OBJECT (src, "opened location %s", uri);
g_free (uri);
return stream;
}
static gboolean
gst_gio_src_start (GstBaseSrc * base_src)
{
GstGioSrc *src = GST_GIO_SRC (base_src);
GFile *file;
GError *err = NULL;
GInputStream *stream;
GCancellable *cancel = GST_GIO_BASE_SRC (src)->cancel;
if (src->location == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), ("No location given"));
return FALSE;
}
file = g_file_new_for_uri (src->location);
if (file == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Malformed URI or protocol not supported (%s)", src->location));
return FALSE;
}
stream = G_INPUT_STREAM (g_file_read (file, cancel, &err));
g_object_unref (file);
if (stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for reading: %s",
src->location, err->message));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not open location %s for reading: %s",
src->location, err->message));
}
g_clear_error (&err);
return FALSE;
} else if (stream == NULL) {
return FALSE;
}
gst_gio_base_src_set_stream (GST_GIO_BASE_SRC (src), stream);
GST_DEBUG_OBJECT (src, "opened location %s", src->location);
return GST_BASE_SRC_CLASS (parent_class)->start (base_src);
}
static gboolean
gst_gio_src_start (GstBaseSrc * base_src)
{
GstGioSrc *src = GST_GIO_SRC (base_src);
GError *err = NULL;
GInputStream *stream;
GCancellable *cancel = GST_GIO_BASE_SRC (src)->cancel;
gchar *uri = NULL;
if (src->file == NULL) {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("No location or GFile given"));
return FALSE;
}
uri = g_file_get_uri (src->file);
if (!uri)
uri = g_strdup ("(null)");
stream = G_INPUT_STREAM (g_file_read (src->file, cancel, &err));
if (stream == NULL && !gst_gio_error (src, "g_file_read", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not open location %s for reading: %s", uri, err->message));
}
g_free (uri);
g_clear_error (&err);
return FALSE;
} else if (stream == NULL) {
g_free (uri);
return FALSE;
}
gst_gio_base_src_set_stream (GST_GIO_BASE_SRC (src), stream);
GST_DEBUG_OBJECT (src, "opened location %s", uri);
g_free (uri);
return GST_BASE_SRC_CLASS (parent_class)->start (base_src);
}
static GstFlowReturn
gst_gio_base_src_create (GstBaseSrc * base_src, guint64 offset, guint size,
GstBuffer ** buf_return)
{
GstGioBaseSrc *src = GST_GIO_BASE_SRC (base_src);
GstBuffer *buf;
GstFlowReturn ret = GST_FLOW_OK;
g_return_val_if_fail (G_IS_INPUT_STREAM (src->stream), GST_FLOW_ERROR);
/* If we have the requested part in our cache take a subbuffer of that,
* otherwise fill the cache again with at least 4096 bytes from the
* requested offset and return a subbuffer of that.
*
* We need caching because every read/seek operation will need to go
* over DBus if our backend is GVfs and this is painfully slow. */
if (src->cache && offset >= GST_BUFFER_OFFSET (src->cache) &&
offset + size <= GST_BUFFER_OFFSET_END (src->cache)) {
GST_DEBUG_OBJECT (src, "Creating subbuffer from cached buffer: offset %"
G_GUINT64_FORMAT " length %u", offset, size);
buf = gst_buffer_copy_region (src->cache, GST_BUFFER_COPY_ALL,
offset - GST_BUFFER_OFFSET (src->cache), size);
GST_BUFFER_OFFSET (buf) = offset;
GST_BUFFER_OFFSET_END (buf) = offset + size;
} else {
guint cachesize = MAX (4096, size);
GstMapInfo map;
gssize read, res;
gboolean success, eos;
GError *err = NULL;
if (src->cache) {
gst_buffer_unref (src->cache);
src->cache = NULL;
}
if (G_UNLIKELY (offset != src->position)) {
if (!GST_GIO_STREAM_IS_SEEKABLE (src->stream))
return GST_FLOW_NOT_SUPPORTED;
GST_DEBUG_OBJECT (src, "Seeking to position %" G_GUINT64_FORMAT, offset);
ret = gst_gio_seek (src, G_SEEKABLE (src->stream), offset, src->cancel);
if (ret == GST_FLOW_OK)
src->position = offset;
else
return ret;
}
src->cache = gst_buffer_new_and_alloc (cachesize);
if (G_UNLIKELY (src->cache == NULL)) {
GST_ERROR_OBJECT (src, "Failed to allocate %u bytes", cachesize);
return GST_FLOW_ERROR;
}
GST_LOG_OBJECT (src, "Reading %u bytes from offset %" G_GUINT64_FORMAT,
cachesize, offset);
/* GIO sometimes gives less bytes than requested although
* it's not at the end of file. SMB for example only
* supports reads up to 64k. So we loop here until we get at
* at least the requested amount of bytes or a read returns
* nothing. */
gst_buffer_map (src->cache, &map, GST_MAP_WRITE);
read = 0;
while (size - read > 0 && (res =
g_input_stream_read (G_INPUT_STREAM (src->stream),
map.data + read, cachesize - read, src->cancel, &err)) > 0) {
read += res;
}
gst_buffer_unmap (src->cache, &map);
success = (read >= 0);
eos = (cachesize > 0 && read == 0);
if (!success && !gst_gio_error (src, "g_input_stream_read", &err, &ret)) {
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("Could not read from stream: %s", err->message));
g_clear_error (&err);
}
if (success && !eos) {
src->position += read;
GST_BUFFER_OFFSET (src->cache) = offset;
GST_BUFFER_OFFSET_END (src->cache) = offset + read;
GST_DEBUG_OBJECT (src, "Read successful");
GST_DEBUG_OBJECT (src, "Creating subbuffer from new "
"cached buffer: offset %" G_GUINT64_FORMAT " length %u", offset,
size);
buf =
gst_buffer_copy_region (src->cache, GST_BUFFER_COPY_ALL, 0, MIN (size,
read));
GST_BUFFER_OFFSET (buf) = offset;
GST_BUFFER_OFFSET_END (buf) = offset + MIN (size, read);
} else {
GST_DEBUG_OBJECT (src, "Read not successful");
gst_buffer_unref (src->cache);
src->cache = NULL;
buf = NULL;
}
if (eos)
ret = GST_FLOW_EOS;
}
*buf_return = buf;
return ret;
}
static gboolean
gst_gio_base_src_get_size (GstBaseSrc * base_src, guint64 * size)
{
GstGioBaseSrc *src = GST_GIO_BASE_SRC (base_src);
if (G_IS_FILE_INPUT_STREAM (src->stream)) {
GFileInfo *info;
GError *err = NULL;
info = g_file_input_stream_query_info (G_FILE_INPUT_STREAM (src->stream),
G_FILE_ATTRIBUTE_STANDARD_SIZE, src->cancel, &err);
if (info != NULL) {
*size = g_file_info_get_size (info);
g_object_unref (info);
GST_DEBUG_OBJECT (src, "found size: %" G_GUINT64_FORMAT, *size);
return TRUE;
}
if (!gst_gio_error (src, "g_file_input_stream_query_info", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_SUPPORTED))
GST_DEBUG_OBJECT (src, "size information not available");
else
GST_WARNING_OBJECT (src, "size information retrieval failed: %s",
err->message);
g_clear_error (&err);
}
}
if (GST_GIO_STREAM_IS_SEEKABLE (src->stream)) {
goffset old;
goffset stream_size;
gboolean ret;
GSeekable *seekable = G_SEEKABLE (src->stream);
GError *err = NULL;
old = g_seekable_tell (seekable);
ret = g_seekable_seek (seekable, 0, G_SEEK_END, src->cancel, &err);
if (!ret) {
if (!gst_gio_error (src, "g_seekable_seek", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_SUPPORTED))
GST_DEBUG_OBJECT (src,
"Seeking to the end of stream is not supported");
else
GST_WARNING_OBJECT (src, "Seeking to end of stream failed: %s",
err->message);
g_clear_error (&err);
} else {
GST_WARNING_OBJECT (src, "Seeking to end of stream failed");
}
return FALSE;
}
stream_size = g_seekable_tell (seekable);
ret = g_seekable_seek (seekable, old, G_SEEK_SET, src->cancel, &err);
if (!ret) {
if (!gst_gio_error (src, "g_seekable_seek", &err, NULL)) {
if (GST_GIO_ERROR_MATCHES (err, NOT_SUPPORTED))
GST_ERROR_OBJECT (src, "Seeking to the old position not supported");
else
GST_ERROR_OBJECT (src, "Seeking to the old position failed: %s",
err->message);
g_clear_error (&err);
} else {
GST_ERROR_OBJECT (src, "Seeking to the old position faile");
}
return FALSE;
}
if (stream_size >= 0) {
*size = stream_size;
return TRUE;
}
}
return FALSE;
}
static GOutputStream *
gst_gio_sink_get_stream (GstGioBaseSink * bsink)
{
GstGioSink *sink = GST_GIO_SINK (bsink);
GOutputStream *stream;
GCancellable *cancel = GST_GIO_BASE_SINK (sink)->cancel;
GError *err = NULL;
gchar *uri;
if (sink->file == NULL) {
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("No location or GFile given"));
return NULL;
}
uri = g_file_get_uri (sink->file);
if (!uri)
uri = g_strdup ("(null)");
stream =
G_OUTPUT_STREAM (g_file_create (sink->file, G_FILE_CREATE_NONE, cancel,
&err));
if (!stream) {
if (!gst_gio_error (sink, "g_file_create", &err, NULL)) {
/*if (GST_GIO_ERROR_MATCHES (err, EXISTS)) */
/* FIXME: Retry with replace if overwrite == TRUE! */
if (GST_GIO_ERROR_MATCHES (err, NOT_FOUND)) {
GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND, (NULL),
("Could not open location %s for writing: %s", uri, err->message));
} else if (GST_GIO_ERROR_MATCHES (err, EXISTS)) {
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_message_new_element (GST_OBJECT_CAST (sink),
gst_structure_new ("file-exists", "file", G_TYPE_FILE,
sink->file, "uri", G_TYPE_STRING, uri, NULL)));
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("Location %s already exists: %s", uri, err->message));
} else if (GST_GIO_ERROR_MATCHES (err, NOT_MOUNTED)) {
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_message_new_element (GST_OBJECT_CAST (sink),
gst_structure_new ("not-mounted", "file", G_TYPE_FILE,
sink->file, "uri", G_TYPE_STRING, uri, NULL)));
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("Location %s not mounted: %s", uri, err->message));
} else {
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("Could not open location %s for writing: %s", uri, err->message));
}
g_clear_error (&err);
}
g_free (uri);
return NULL;
}
GST_DEBUG_OBJECT (sink, "opened location %s", uri);
g_free (uri);
return stream;
}
