--- /dev/null
+/* RealVideo wrapper plugin
+ *
+ * Copyright (C) 2005 Lutz Mueller <lutz@topfrose.de>
+ *
+ * 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 <config.h>
+
+#include <gst/gstelement.h>
+#include <gst/gsterror.h>
+#include <gst/gstinfo.h>
+#include <gst/gstplugin.h>
+#include <gst/gstutils.h>
+#include <gst/gstversion.h>
+
+#include <gst/base/gstadapter.h>
+
+#include <dlfcn.h>
+#include <string.h>
+
+#define GST_TYPE_REAL_DEC (gst_realdec_get_type())
+#define GST_REAL_DEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_REAL_DEC,GstRealDec))
+#define GST_REAL_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_REAL_DEC,GstRealDecClass))
+
+GST_DEBUG_CATEGORY_STATIC (realdec_debug);
+#define GST_CAT_DEFAULT realdec_debug
+
+typedef struct _GstRealDec GstRealDec;
+typedef struct _GstRealDecClass GstRealDecClass;
+
+static GstElementDetails realdec_details =
+GST_ELEMENT_DETAILS ("RealVideo decoder",
+ "Codec/Decoder", "Decoder for RealVideo streams",
+ "Lutz Mueller <lutz@topfrose.de>");
+
+static GstStaticPadTemplate snk_t =
+GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-pn-realvideo, " "rmversion = (int) [ 2, 4 ]"));
+static GstStaticPadTemplate src_t =
+GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw-yuv, "
+ "format = (fourcc) I420, "
+ "framerate = (fraction) [0/1, MAX], "
+ "width = (int) [ 16, 4096 ], " "height = (int) [ 16, 4096 ] "));
+
+#define DEFAULT_PATH_RV20 "/usr/lib/win32/drv2.so.6.0"
+#define DEFAULT_PATH_RV30 "/usr/lib/win32/drv3.so.6.0"
+#define DEFAULT_PATH_RV40 "/usr/lib/win32/drv4.so.6.0"
+
+enum
+{
+ PROP_0,
+ PROP_PATH_RV20,
+ PROP_PATH_RV30,
+ PROP_PATH_RV40
+};
+
+typedef enum
+{
+ GST_REAL_DEC_VERSION_2 = 2,
+ GST_REAL_DEC_VERSION_3 = 3,
+ GST_REAL_DEC_VERSION_4 = 4
+} GstRealDecVersion;
+
+struct _GstRealDec
+{
+ GstElement parent;
+
+ GstPad *src, *snk;
+
+ /* Caps */
+ GstRealDecVersion version;
+ guint width, height;
+ gint format, subformat;
+ gint framerate_num, framerate_denom;
+
+ /* Variables needed for fixing timestamps. */
+ GstClockTime next_ts, last_ts;
+ guint16 next_seq, last_seq;
+
+ /* Hooks */
+ gpointer handle;
+ guint32 (*custom_message) (guint32 *, gpointer);
+ guint32 (*free) (gpointer);
+ guint32 (*init) (gpointer, gpointer);
+ guint32 (*transform) (gchar *, gchar *, guint32 *, guint32 *, gpointer);
+
+ /* Used by the REAL library. */
+ gpointer context;
+
+ /* State */
+ GstAdapter *adapter;
+ guint8 seqnum, subseq;
+ guint16 length;
+ guint32 fragment_count;
+ guint32 fragments[256];
+
+ /* Properties */
+ gchar *path_rv20, *path_rv30, *path_rv40;
+};
+
+struct _GstRealDecClass
+{
+ GstElementClass parent_class;
+};
+
+GST_BOILERPLATE (GstRealDec, gst_realdec, GstElement, GST_TYPE_ELEMENT);
+
+static GstFlowReturn
+gst_realdec_alloc_buffer (GstRealDec * dec, GstClockTime timestamp,
+ GstBuffer ** buf)
+{
+ GstFlowReturn ret;
+ const guint8 *b;
+ guint8 frame_type;
+ guint16 seq;
+ GstClockTime ts = timestamp;
+
+ GST_LOG_OBJECT (dec, "timestamp %" GST_TIME_FORMAT, GST_TIME_ARGS (ts));
+
+ /* Fix timestamp. */
+ b = gst_adapter_peek (dec->adapter, 4);
+ switch (dec->version) {
+ case GST_REAL_DEC_VERSION_2:
+ {
+
+ /*
+ * Bit 1- 2: frame type
+ * Bit 3- 9: ?
+ * Bit 10-22: sequence number
+ * Bit 23-32: ?
+ */
+ frame_type = (b[0] >> 6) & 0x03;
+ seq = ((b[1] & 0x7f) << 6) + ((b[2] & 0xfc) >> 2);
+ break;
+ }
+ case GST_REAL_DEC_VERSION_3:
+ {
+ /*
+ * Bit 1- 2: ?
+ * Bit 3: skip packet if 1
+ * Bit 4- 5: frame type
+ * Bit 6-12: ?
+ * Bit 13-25: sequence number
+ * Bit 26-32: ?
+ */
+ frame_type = (b[0] >> 3) & 0x03;
+ seq = ((b[1] & 0x0f) << 9) + (b[2] << 1) + ((b[3] & 0x80) >> 7);
+ break;
+ }
+ case GST_REAL_DEC_VERSION_4:
+ {
+ /*
+ * Bit 1: skip packet if 1
+ * Bit 2- 3: frame type
+ * Bit 4-13: ?
+ * Bit 14-26: sequence number
+ * Bit 27-32: ?
+ */
+ frame_type = (b[0] >> 5) & 0x03;
+ seq = ((b[1] & 0x07) << 10) + (b[2] << 2) + ((b[3] & 0xc0) >> 6);
+ break;
+ }
+ default:
+ goto unknown_version;
+ }
+
+ GST_LOG_OBJECT (dec, "frame_type:%d", frame_type);
+
+ switch (frame_type) {
+ case 0:
+ case 1:
+ {
+ /* I frame */
+ timestamp = dec->next_ts;
+ dec->last_ts = dec->next_ts;
+ dec->next_ts = ts;
+ dec->last_seq = dec->next_seq;
+ dec->next_seq = seq;
+
+ break;
+ }
+ case 2:
+ {
+ /* P frame */
+ timestamp = dec->last_ts = dec->next_ts;
+ if (seq < dec->next_seq)
+ dec->next_ts += (seq + 0x2000 - dec->next_seq) * GST_MSECOND;
+ else
+ dec->next_ts += (seq - dec->next_seq) * GST_MSECOND;
+ dec->last_seq = dec->next_seq;
+ dec->next_seq = seq;
+ break;
+ }
+ case 3:
+ {
+ /* B frame */
+ if (seq < dec->last_seq) {
+ timestamp = (seq + 0x2000 - dec->last_seq) * GST_MSECOND + dec->last_ts;
+ } else {
+ timestamp = (seq - dec->last_seq) * GST_MSECOND + dec->last_ts;
+ }
+
+ break;
+ }
+ default:
+ goto unknown_frame_type;
+ }
+
+ ret = gst_pad_alloc_buffer (dec->src, GST_BUFFER_OFFSET_NONE,
+ dec->width * dec->height * 3 / 2, GST_PAD_CAPS (dec->src), buf);
+
+ if (ret == GST_FLOW_OK)
+ GST_BUFFER_TIMESTAMP (*buf) = timestamp;
+
+ return ret;
+
+ /* Errors */
+unknown_version:
+ {
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE,
+ ("Unknown version: %i.", dec->version), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+unknown_frame_type:
+ {
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE, ("Unknown frame type."), (NULL));
+ return GST_FLOW_ERROR;
+ }
+}
+
+static GstFlowReturn
+gst_realdec_decode (GstRealDec * dec, GstBuffer * in, guint offset)
+{
+ guint32 result;
+ GstBuffer *out = NULL;
+ GstFlowReturn ret;
+ guint8 *data, hdr_subseq, hdr_seqnum;
+ guint32 hdr_offset, hdr_length;
+ guint16 n;
+ gboolean bres;
+ guint8 *buf = GST_BUFFER_DATA (in) + offset;
+ guint len = GST_BUFFER_SIZE (in) - offset;
+ GstClockTime timestamp = GST_BUFFER_TIMESTAMP (in);
+
+ GST_LOG_OBJECT (dec,
+ "Got buffer %p with timestamp %" GST_TIME_FORMAT " offset %d", in,
+ GST_TIME_ARGS (timestamp), offset);
+
+ /* Subsequence */
+ if (len < 1)
+ goto not_enough_data;
+ if (*buf != 0x40 && *buf != 0x41 && *buf != 0x42 &&
+ *buf != 0x43 && *buf != 0x44 && *buf != 0x45) {
+ hdr_subseq = *buf & 0x7f;
+ buf++;
+ len--;
+ if (hdr_subseq == 64)
+ hdr_subseq = 1;
+ } else {
+ hdr_subseq = 1;
+ }
+
+ /* Length */
+ if (len < 2)
+ goto not_enough_data;
+ hdr_length = GST_READ_UINT16_BE (buf);
+ if (!(hdr_length & 0xc000)) {
+ if (len < 4)
+ goto not_enough_data;
+ hdr_length = GST_READ_UINT32_BE (buf);
+ buf += 4;
+ len -= 4;
+ } else {
+ hdr_length &= 0x3fff;
+ buf += 2;
+ len -= 2;
+ }
+
+ /* Offset */
+ if (len < 2)
+ goto not_enough_data;
+ hdr_offset = GST_READ_UINT16_BE (buf);
+ if (!(hdr_offset & 0xc000)) {
+ if (len < 4)
+ goto not_enough_data;
+ hdr_offset = GST_READ_UINT32_BE (buf);
+ buf += 4;
+ len -= 4;
+ } else {
+ hdr_offset &= 0x3fff;
+ buf += 2;
+ len -= 2;
+ }
+
+ /* Sequence number */
+ if (len < 1)
+ goto not_enough_data;
+ hdr_seqnum = *buf;
+ buf++;
+ len--;
+ if (len < 1)
+ goto not_enough_data;
+
+ /* Verify the sequence numbers. */
+ if (hdr_subseq == 1) {
+ n = gst_adapter_available_fast (dec->adapter);
+ if (n > 0) {
+ GST_DEBUG_OBJECT (dec, "Dropping data for sequence %i "
+ "because we are already receiving data for sequence %i.",
+ dec->seqnum, hdr_seqnum);
+ gst_adapter_clear (dec->adapter);
+ }
+ dec->seqnum = hdr_seqnum;
+ dec->length = hdr_length;
+ dec->fragment_count = 1;
+ } else {
+ if (dec->seqnum != hdr_seqnum) {
+ GST_DEBUG_OBJECT (dec, "Expected sequence %i, got sequence %i "
+ "(subseq=%i). Dropping packet.", dec->seqnum, hdr_seqnum, hdr_subseq);
+ return GST_FLOW_OK;
+ } else if (dec->subseq + 1 != hdr_subseq) {
+ GST_DEBUG_OBJECT (dec, "Expected subsequence %i, got subseqence %i. "
+ "Dropping packet.", dec->subseq + 1, hdr_subseq);
+ return GST_FLOW_OK;
+ }
+ dec->fragment_count++;
+ }
+ dec->subseq = hdr_subseq;
+
+ /* Remember the offset */
+ if (sizeof (dec->fragments) < 2 * (dec->fragment_count - 1) + 1)
+ goto too_many_fragments;
+ dec->fragments[2 * (dec->fragment_count - 1)] = 1;
+ dec->fragments[2 * (dec->fragment_count - 1) + 1] =
+ gst_adapter_available (dec->adapter);
+
+ /* Some buffers need to be skipped. */
+ if (((dec->version == GST_REAL_DEC_VERSION_3) && (*buf & 0x20)) ||
+ ((dec->version == GST_REAL_DEC_VERSION_4) && (*buf & 0x80))) {
+ dec->fragment_count--;
+ dec->length -= len;
+ } else {
+ gst_adapter_push (dec->adapter,
+ gst_buffer_create_sub (in, GST_BUFFER_SIZE (in) - len, len));
+ }
+
+ /* All bytes received? */
+ n = gst_adapter_available (dec->adapter);
+ GST_LOG_OBJECT (dec, "We know have %d bytes, and we need %d", n, dec->length);
+ if (dec->length <= n) {
+ guint32 tin[6] = { 0, 0, 0, 0, 0, 0 }
+ , tout[5];
+
+ if ((ret = gst_realdec_alloc_buffer (dec, timestamp, &out)) != GST_FLOW_OK)
+ return ret;
+
+ /* Decode */
+ tin[0] = dec->length;
+ tin[2] = dec->fragment_count - 1;
+ tin[3] = (guint32) dec->fragments;
+ tin[5] = GST_BUFFER_TIMESTAMP (out);
+ data = gst_adapter_take (dec->adapter, dec->length);
+ result = dec->transform (
+ (gchar *) data,
+ (gchar *) GST_BUFFER_DATA (out), tin, tout, dec->context);
+ g_free (data);
+ if (result)
+ goto could_not_transform;
+
+ /* Check for new dimensions */
+ if (tout[0] && ((dec->width != tout[3]) || (dec->height != tout[4]))) {
+ GstCaps *caps = gst_caps_copy (GST_PAD_CAPS (dec->src));
+ GstStructure *s = gst_caps_get_structure (caps, 0);
+
+ GST_DEBUG_OBJECT (dec, "New dimensions: %"
+ G_GUINT32_FORMAT " x %" G_GUINT32_FORMAT, tout[3], tout[4]);
+ gst_structure_set (s, "width", G_TYPE_LONG, tout[3],
+ "height", G_TYPE_LONG, tout[4], NULL);
+ bres = gst_pad_set_caps (dec->src, caps);
+ gst_caps_unref (caps);
+ if (!bres)
+ goto new_dimensions_failed;
+ dec->width = tout[3];
+ dec->height = tout[4];
+ }
+
+ GST_DEBUG_OBJECT (dec,
+ "Pushing out buffer with timestamp %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (out)));
+
+ if ((ret = gst_pad_push (dec->src, out)) != GST_FLOW_OK)
+ goto could_not_push;
+
+ n = gst_adapter_available (dec->adapter);
+ if (n > 0) {
+ GST_LOG_OBJECT (dec, "Data left in the adapter: %d", n);
+ in = gst_adapter_take_buffer (dec->adapter, n);
+ ret = gst_realdec_decode (dec, in, 0);
+ gst_buffer_unref (in);
+ if (ret != GST_FLOW_OK)
+ return ret;
+ }
+ }
+
+ return GST_FLOW_OK;
+
+ /* Errors */
+not_enough_data:
+ {
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE, ("Not enough data."), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+too_many_fragments:
+ {
+ gst_buffer_unref (in);
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE,
+ ("Got more fragments (%i) than can be handled (%i).",
+ dec->fragment_count, sizeof (dec->fragments)), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+could_not_transform:
+ {
+ gst_buffer_unref (out);
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE,
+ ("Could not decode buffer: %" G_GUINT32_FORMAT, result), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+new_dimensions_failed:
+ {
+ gst_buffer_unref (out);
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE,
+ ("Could not set new dimensions."), (NULL));
+ return GST_FLOW_ERROR;
+ }
+
+could_not_push:
+ {
+ GST_DEBUG_OBJECT (dec, "Could not push buffer: %s",
+ gst_flow_get_name (ret));
+ return ret;
+ }
+}
+
+static GstFlowReturn
+gst_realdec_chain (GstPad * pad, GstBuffer * in)
+{
+ GstRealDec *dec = GST_REAL_DEC (GST_PAD_PARENT (pad));
+ guint8 flags, *buf = GST_BUFFER_DATA (in);
+ guint len = GST_BUFFER_SIZE (in);
+ GstFlowReturn ret;
+
+ /* Flags */
+ if (len < 1)
+ goto not_enough_data;
+ flags = *buf;
+ buf++;
+ len--;
+
+ if (flags == 0x40) {
+ GST_DEBUG_OBJECT (dec, "Don't know how to handle buffer of type 0x40 "
+ "(size=%i).", len);
+ return GST_FLOW_OK;
+ }
+
+ ret = gst_realdec_decode (dec, in, 1);
+ gst_buffer_unref (in);
+ if (ret != GST_FLOW_OK)
+ return ret;
+ return GST_FLOW_OK;
+
+ /* Errors */
+not_enough_data:
+ {
+ GST_ELEMENT_ERROR (dec, STREAM, DECODE, ("Not enough data."), (NULL));
+ gst_buffer_unref (in);
+ return GST_FLOW_ERROR;
+ }
+}
+
+static gboolean
+gst_realdec_activate_push (GstPad * pad, gboolean active)
+{
+ GstRealDec *dec = GST_REAL_DEC (GST_PAD_PARENT (pad));
+
+ gst_adapter_clear (dec->adapter);
+
+ return TRUE;
+}
+
+static gboolean
+gst_realdec_setcaps (GstPad * pad, GstCaps * caps)
+{
+ GstRealDec *dec = GST_REAL_DEC (GST_PAD_PARENT (pad));
+ GstStructure *s = gst_caps_get_structure (caps, 0);
+ gchar *path;
+ gint version, res;
+ gchar data[36];
+ gboolean bres;
+
+ if (!gst_structure_get_int (s, "rmversion", &version) ||
+ !gst_structure_get_int (s, "width", (gint *) & dec->width) ||
+ !gst_structure_get_int (s, "height", (gint *) & dec->height) ||
+ !gst_structure_get_int (s, "format", &dec->format) ||
+ !gst_structure_get_int (s, "subformat", &dec->subformat) ||
+ !gst_structure_get_fraction (s, "framerate", &dec->framerate_num,
+ &dec->framerate_denom))
+ goto missing_keys;
+ dec->version = version;
+
+ GST_LOG_OBJECT (dec, "Setting version to %d", version);
+
+ switch (dec->version) {
+ case GST_REAL_DEC_VERSION_2:
+ path = dec->path_rv20 ? dec->path_rv20 : DEFAULT_PATH_RV20;
+ break;
+ case GST_REAL_DEC_VERSION_3:
+ path = dec->path_rv30 ? dec->path_rv30 : DEFAULT_PATH_RV30;
+ break;
+ case GST_REAL_DEC_VERSION_4:
+ path = dec->path_rv40 ? dec->path_rv40 : DEFAULT_PATH_RV40;
+ break;
+ default:
+ goto unknown_version;
+ }
+
+ if (dec->handle)
+ dlclose (dec->handle);
+ dec->handle = dlopen (path, RTLD_LAZY);
+ if (!dec->handle)
+ goto could_not_open;
+ dec->custom_message = dlsym (dec->handle, "RV20toYUV420CustomMessage");
+ dec->free = dlsym (dec->handle, "RV20toYUV420Free");
+ dec->init = dlsym (dec->handle, "RV20toYUV420Init");
+ dec->transform = dlsym (dec->handle, "RV20toYUV420Transform");
+ if (!(dec->custom_message && dec->free && dec->init && dec->transform))
+ goto could_not_load;
+
+ /* Initialize REAL driver. */
+ GST_WRITE_UINT16_LE (data + 0, 11);
+ GST_WRITE_UINT16_LE (data + 2, dec->width);
+ GST_WRITE_UINT16_LE (data + 4, dec->height);
+ GST_WRITE_UINT16_LE (data + 6, 0);
+ GST_WRITE_UINT32_LE (data + 8, 0);
+ GST_WRITE_UINT32_LE (data + 12, dec->subformat);
+ GST_WRITE_UINT32_LE (data + 16, 0);
+ GST_WRITE_UINT32_LE (data + 20, dec->format);
+ res = dec->init (&data, &dec->context);
+ if (res)
+ goto could_not_initialize;
+
+ if (((dec->version == GST_REAL_DEC_VERSION_2) ||
+ (dec->version == GST_REAL_DEC_VERSION_3)) &&
+ (dec->format >= 0x20200002)) {
+ guint32 msg[15];
+
+ msg[0] = 0x24;
+ msg[1] = 1 + ((dec->subformat >> 16) & 7);
+ msg[2] = (guint32) & msg[9];
+ msg[9] = dec->width;
+ msg[10] = dec->height;
+ msg[11] = 0xf0;
+ msg[12] = 0xb0;
+ msg[13] = 0xa0;
+ msg[14] = 0x80;
+ res = dec->custom_message (msg, dec->context);
+ }
+
+ caps = gst_caps_new_simple ("video/x-raw-yuv",
+ "format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'),
+ "framerate", GST_TYPE_FRACTION, dec->framerate_num, dec->framerate_denom,
+ "width", G_TYPE_INT, dec->width, "height", G_TYPE_INT, dec->height, NULL);
+ bres = gst_pad_set_caps (GST_PAD (dec->src), caps);
+ gst_caps_unref (caps);
+ if (!bres)
+ goto could_not_set_caps;
+
+ return TRUE;
+
+missing_keys:
+ {
+ GST_DEBUG_OBJECT (dec, "Could not find all necessary keys in structure.");
+ return FALSE;
+ }
+
+unknown_version:
+ {
+ GST_DEBUG_OBJECT (dec, "Cannot handle version %i.", version);
+ return FALSE;
+ }
+
+could_not_open:
+ {
+ GST_DEBUG_OBJECT (dec, "Could not open library '%s'.", path);
+ return FALSE;
+ }
+
+could_not_load:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Could not load all symbols.");
+ return FALSE;
+ }
+
+could_not_initialize:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Initialization of REAL driver failed (%i).");
+ return FALSE;
+ }
+
+could_not_set_caps:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Could not convince peer to accept dimensions "
+ "%i x %i.", dec->width, dec->height);
+ return FALSE;
+ }
+}
+
+static void
+gst_realdec_init (GstRealDec * dec, GstRealDecClass * klass)
+{
+ dec->snk =
+ gst_pad_new_from_template (gst_static_pad_template_get (&snk_t), "sink");
+ gst_pad_set_setcaps_function (dec->snk, gst_realdec_setcaps);
+ gst_pad_set_chain_function (dec->snk, gst_realdec_chain);
+ gst_pad_set_activatepush_function (dec->snk, gst_realdec_activate_push);
+ gst_element_add_pad (GST_ELEMENT (dec), dec->snk);
+
+ dec->src =
+ gst_pad_new_from_template (gst_static_pad_template_get (&src_t), "src");
+ gst_element_add_pad (GST_ELEMENT (dec), dec->src);
+
+ dec->adapter = g_object_new (GST_TYPE_ADAPTER, NULL);
+}
+
+static void
+gst_realdec_base_init (gpointer g_class)
+{
+ GstElementClass *ec = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_add_pad_template (ec, gst_static_pad_template_get (&snk_t));
+ gst_element_class_add_pad_template (ec, gst_static_pad_template_get (&src_t));
+ gst_element_class_set_details (ec, &realdec_details);
+}
+
+static GstStateChangeReturn
+gst_realdec_change_state (GstElement * element, GstStateChange transition)
+{
+ GstStateChangeReturn ret;
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ break;
+ default:
+ break;
+ }
+ return ret;
+}
+
+static void
+gst_realdec_finalize (GObject * object)
+{
+ GstRealDec *dec = GST_REAL_DEC (object);
+
+ if (dec->context) {
+ dec->free (dec->context);
+ dec->context = NULL;
+ }
+ if (dec->adapter) {
+ g_object_unref (G_OBJECT (dec->adapter));
+ dec->adapter = NULL;
+ }
+ if (dec->handle) {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ }
+
+ if (dec->path_rv20) {
+ g_free (dec->path_rv20);
+ dec->path_rv20 = NULL;
+ }
+ if (dec->path_rv30) {
+ g_free (dec->path_rv30);
+ dec->path_rv30 = NULL;
+ }
+ if (dec->path_rv40) {
+ g_free (dec->path_rv40);
+ dec->path_rv40 = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_realdec_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstRealDec *dec = GST_REAL_DEC (object);
+
+ /* Changing the location of the .so supposes it's not being done
+ * in a state greater than READY !
+ */
+
+ switch (prop_id) {
+ case PROP_PATH_RV20:
+ if (dec->path_rv20)
+ g_free (dec->path_rv20);
+ dec->path_rv20 = g_value_dup_string (value);
+ break;
+ case PROP_PATH_RV30:
+ if (dec->path_rv30)
+ g_free (dec->path_rv30);
+ dec->path_rv30 = g_value_dup_string (value);
+ break;
+ case PROP_PATH_RV40:
+ if (dec->path_rv40)
+ g_free (dec->path_rv40);
+ dec->path_rv40 = g_value_dup_string (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_realdec_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstRealDec *dec = GST_REAL_DEC (object);
+
+ switch (prop_id) {
+ case PROP_PATH_RV20:
+ g_value_set_string (value, dec->path_rv20);
+ break;
+ case PROP_PATH_RV30:
+ g_value_set_string (value, dec->path_rv30);
+ break;
+ case PROP_PATH_RV40:
+ g_value_set_string (value, dec->path_rv40);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_realdec_class_init (GstRealDecClass * klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = gst_realdec_set_property;
+ object_class->get_property = gst_realdec_get_property;
+ object_class->finalize = gst_realdec_finalize;
+
+ element_class->change_state = gst_realdec_change_state;
+
+ g_object_class_install_property (object_class, PROP_PATH_RV20,
+ g_param_spec_string ("path_rv20", "Path to rv20 driver",
+ "Path to rv20 driver", DEFAULT_PATH_RV20, G_PARAM_READWRITE));
+ g_object_class_install_property (object_class, PROP_PATH_RV30,
+ g_param_spec_string ("path_rv30", "Path to rv30 driver",
+ "Path to rv30 driver", DEFAULT_PATH_RV30, G_PARAM_READWRITE));
+ g_object_class_install_property (object_class, PROP_PATH_RV40,
+ g_param_spec_string ("path_rv40", "Path to rv40 driver",
+ "Path to rv40 driver", DEFAULT_PATH_RV40, G_PARAM_READWRITE));
+
+ GST_DEBUG_CATEGORY_INIT (realdec_debug, "realdec", 0, "REAL decoder");
+}
+
+static gboolean
+plugin_init (GstPlugin * p)
+{
+ if (!gst_element_register (p, "realdec", GST_RANK_PRIMARY, GST_TYPE_REAL_DEC))
+ return FALSE;
+ return TRUE;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "real",
+ "Decode REAL streams",
+ plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gstreamer.git / commitdiff