mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 08:17:01 +00:00
984afa2453
Original commit message from CVS: * ext/musepack/gstmusepackreader.cpp: Workaround for older core.
145 lines
3.4 KiB
C
145 lines
3.4 KiB
C
/* GStreamer Musepack decoder plugin
|
|
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <string.h>
|
|
|
|
#include "gstmusepackreader.h"
|
|
|
|
GstMusepackReader::GstMusepackReader (GstByteStream *bs)
|
|
{
|
|
this->bs = bs;
|
|
this->eos = false;
|
|
}
|
|
|
|
GstMusepackReader::~GstMusepackReader (void)
|
|
{
|
|
}
|
|
|
|
mpc_int32_t
|
|
GstMusepackReader::read (void * ptr, mpc_int32_t size)
|
|
{
|
|
guint8 *data;
|
|
gint read;
|
|
|
|
do {
|
|
read = gst_bytestream_peek_bytes (this->bs, &data, size);
|
|
|
|
if (read != size) {
|
|
GstEvent *event;
|
|
guint32 remaining;
|
|
|
|
gst_bytestream_get_status (this->bs, &remaining, &event);
|
|
if (!event) {
|
|
GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
|
|
RESOURCE, READ, (NULL), (NULL));
|
|
goto done;
|
|
}
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_INTERRUPT:
|
|
gst_event_unref (event);
|
|
goto done;
|
|
case GST_EVENT_EOS:
|
|
this->eos = true;
|
|
gst_event_unref (event);
|
|
goto done;
|
|
default:
|
|
gst_pad_event_default (this->bs->pad, event);
|
|
break;
|
|
}
|
|
}
|
|
} while (read != size);
|
|
|
|
done:
|
|
if (read != 0) {
|
|
memcpy (ptr, data, read);
|
|
gst_bytestream_flush_fast (this->bs, read);
|
|
}
|
|
|
|
return read;
|
|
}
|
|
|
|
bool
|
|
GstMusepackReader::seek (mpc_int32_t offset)
|
|
{
|
|
guint8 *dummy;
|
|
|
|
/* hacky hack - if we're after typefind, we'll fail because
|
|
* typefind is still typefinding (heh :) ). So read first. */
|
|
if (this->tell () != this->get_size ()) {
|
|
guint8 dummy2[1];
|
|
this->read (dummy2, 1);
|
|
}
|
|
|
|
if (!gst_bytestream_seek (this->bs, offset, GST_SEEK_METHOD_SET))
|
|
return FALSE;
|
|
|
|
/* get discont */
|
|
while (gst_bytestream_peek_bytes (this->bs, &dummy, 1) != 1) {
|
|
GstEvent *event;
|
|
guint32 remaining;
|
|
|
|
gst_bytestream_get_status (this->bs, &remaining, &event);
|
|
if (!event) {
|
|
GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
|
|
RESOURCE, SEEK, (NULL), (NULL));
|
|
return false;
|
|
}
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_EOS:
|
|
g_warning ("EOS!");
|
|
gst_event_unref (event);
|
|
return false;
|
|
case GST_EVENT_DISCONTINUOUS:
|
|
gst_event_unref (event);
|
|
return true;
|
|
case GST_EVENT_INTERRUPT:
|
|
g_warning ("interrupt!");
|
|
return false;
|
|
default:
|
|
gst_pad_event_default (this->bs->pad, event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
mpc_int32_t
|
|
GstMusepackReader::tell (void)
|
|
{
|
|
return gst_bytestream_tell (this->bs);
|
|
}
|
|
|
|
mpc_int32_t
|
|
GstMusepackReader::get_size (void)
|
|
{
|
|
return gst_bytestream_length (this->bs);
|
|
}
|
|
|
|
bool
|
|
GstMusepackReader::canseek (void)
|
|
{
|
|
return true;
|
|
}
|