summaryrefslogtreecommitdiffstats
path: root/gst/real
diff options
context:
space:
mode:
Diffstat (limited to 'gst/real')
-rw-r--r--gst/real/Makefile.am4
-rw-r--r--gst/real/gstreal.c791
-rw-r--r--gst/real/gstrealvideodec.c878
-rw-r--r--gst/real/gstrealvideodec.h90
4 files changed, 979 insertions, 784 deletions
diff --git a/gst/real/Makefile.am b/gst/real/Makefile.am
index d1d924c8..8096c579 100644
--- a/gst/real/Makefile.am
+++ b/gst/real/Makefile.am
@@ -1,7 +1,9 @@
plugin_LTLIBRARIES = libgstreal.la
-libgstreal_la_SOURCES = gstreal.c
+libgstreal_la_SOURCES = gstrealvideodec.c gstreal.c
libgstreal_la_CFLAGS = $(GST_BASE_CFLAGS) $(GST_CFLAGS)
libgstreal_la_LIBADD = $(GST_BASE_LIBS)
libgstreal_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstrealvideodec.h \ No newline at end of file
diff --git a/gst/real/gstreal.c b/gst/real/gstreal.c
index a6ba4e45..afb28d0e 100644
--- a/gst/real/gstreal.c
+++ b/gst/real/gstreal.c
@@ -1,6 +1,6 @@
-/* RealVideo wrapper plugin
+/* Real wrapper plugin
*
- * Copyright (C) 2005 Lutz Mueller <lutz@topfrose.de>
+ * Copyright (C) Edward Hervey <bilboed@bilboed.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -18,792 +18,17 @@
* Boston, MA 02111-1307, USA.
*/
-#include <config.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
-#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;
- const GValue *v;
-
- 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 ((v = gst_structure_get_value (s, "codec_data"))) {
- GstBuffer *buf = g_value_peek_pointer (v);
- guint32 *msg = g_new0 (guint32, 11 + GST_BUFFER_SIZE (buf));
- guint i;
-
- if (!msg)
- goto could_not_allocate;
- msg[0] = 0x24;
- msg[1] = 1 + ((dec->subformat >> 16) & 7);
- msg[2] = (guint32) & msg[9];
- msg[9] = dec->width;
- msg[10] = dec->height;
- for (i = 0; i < GST_BUFFER_SIZE (buf); i++)
- msg[i + 11] = 4 * GST_BUFFER_DATA (buf)[i];
- res = dec->custom_message (msg, dec->context);
- g_free (msg);
- if (res)
- goto could_not_send_message;
- }
-
- 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).", res);
- return FALSE;
- }
-
-could_not_allocate:
- {
- dlclose (dec->handle);
- dec->handle = NULL;
- GST_DEBUG_OBJECT (dec, "Could not allocate memory.");
- return FALSE;
- }
-
-could_not_send_message:
- {
- dlclose (dec->handle);
- dec->handle = NULL;
- GST_DEBUG_OBJECT (dec, "Failed to send custom message needed for "
- "initialization (%i).", res);
- 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 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 ? dec->path_rv20 :
- DEFAULT_PATH_RV20);
- break;
- case PROP_PATH_RV30:
- g_value_set_string (value, dec->path_rv30 ? dec->path_rv30 :
- DEFAULT_PATH_RV30);
- break;
- case PROP_PATH_RV40:
- g_value_set_string (value, dec->path_rv40 ? dec->path_rv40 :
- DEFAULT_PATH_RV40);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_realdec_class_init (GstRealDecClass * 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;
-
- 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");
-}
+#include "gstrealvideodec.h"
static gboolean
plugin_init (GstPlugin * p)
{
- if (!gst_element_register (p, "realdec", GST_RANK_PRIMARY, GST_TYPE_REAL_DEC))
+ if (!gst_element_register (p, "realvideodec", GST_RANK_PRIMARY,
+ GST_TYPE_REAL_VIDEO_DEC))
return FALSE;
return TRUE;
}
diff --git a/gst/real/gstrealvideodec.c b/gst/real/gstrealvideodec.c
new file mode 100644
index 00000000..3dfab829
--- /dev/null
+++ b/gst/real/gstrealvideodec.c
@@ -0,0 +1,878 @@
+/* RealVideo wrapper plugin
+ *
+ * Copyright (C) 2005 Lutz Mueller <lutz@topfrose.de>
+ * 2006 Edward Hervey <bilboed@bilboed.com>
+ *
+ * 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 "gstrealvideodec.h"
+
+#include <dlfcn.h>
+#include <string.h>
+
+GST_DEBUG_CATEGORY_STATIC (realvideode_debug);
+#define GST_CAT_DEFAULT realvideode_debug
+
+static GstElementDetails realvideode_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 ] "));
+
+#ifdef HAVE_CPU_I386
+#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"
+#endif
+#ifdef HAVE_CPU_X86_64
+#define DEFAULT_PATH_RV20 "/usr/lib/drvc.so"
+#define DEFAULT_PATH_RV30 "/usr/lib/drvc.so"
+#define DEFAULT_PATH_RV40 "/usr/lib/drvc.so"
+#endif
+
+enum
+{
+ PROP_0,
+ PROP_PATH_RV20,
+ PROP_PATH_RV30,
+ PROP_PATH_RV40
+};
+
+
+GST_BOILERPLATE (GstRealVideoDec, gst_real_video_dec, GstElement,
+ GST_TYPE_ELEMENT);
+
+static gboolean open_library (GstRealVideoDec * dec);
+static void close_library (GstRealVideoDec * dec);
+
+typedef struct
+{
+ guint32 datalen;
+ gint32 interpolate;
+ gint32 nfragments;
+ gpointer fragments;
+ guint32 flags;
+ guint32 timestamp;
+} RVInData;
+
+typedef struct
+{
+ guint32 frames;
+ guint32 notes;
+ guint32 timestamp;
+ guint32 width;
+ guint32 height;
+} RVOutData;
+
+static GstFlowReturn
+gst_real_video_dec_alloc_buffer (GstRealVideoDec * 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_VIDEO_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_VIDEO_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_VIDEO_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_real_video_dec_decode (GstRealVideoDec * 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_VIDEO_DEC_VERSION_3) && (*buf & 0x20)) ||
+ ((dec->version == GST_REAL_VIDEO_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) {
+ RVInData tin;
+ RVOutData tout;
+
+ if ((ret =
+ gst_real_video_dec_alloc_buffer (dec, timestamp,
+ &out)) != GST_FLOW_OK)
+ return ret;
+
+ /* Decode */
+ tin.datalen = dec->length;
+ tin.interpolate = 0;
+ tin.nfragments = dec->fragment_count - 1;
+ tin.fragments = dec->fragments;
+ tin.flags = 0;
+ tin.timestamp = 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.frames && ((dec->width != tout.width)
+ || (dec->height != tout.height))) {
+ 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.width, tout.height);
+ gst_structure_set (s, "width", G_TYPE_LONG, tout.width,
+ "height", G_TYPE_LONG, tout.height, NULL);
+ bres = gst_pad_set_caps (dec->src, caps);
+ gst_caps_unref (caps);
+ if (!bres)
+ goto new_dimensions_failed;
+ dec->width = tout.width;
+ dec->height = tout.height;
+ }
+
+ 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_real_video_dec_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_real_video_dec_chain (GstPad * pad, GstBuffer * in)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_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_real_video_dec_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_real_video_dec_activate_push (GstPad * pad, gboolean active)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_DEC (GST_PAD_PARENT (pad));
+
+ gst_adapter_clear (dec->adapter);
+
+ return TRUE;
+}
+
+static gboolean
+gst_real_video_dec_setcaps (GstPad * pad, GstCaps * caps)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_DEC (GST_PAD_PARENT (pad));
+ GstStructure *s = gst_caps_get_structure (caps, 0);
+ gint version, res;
+ gchar data[36];
+ gboolean bres;
+ const GValue *v;
+
+ 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);
+
+ if (!open_library (dec))
+ return FALSE;
+
+ /* 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 ((v = gst_structure_get_value (s, "codec_data"))) {
+ GstBuffer *buf;
+ guint32 *msgdata;
+ guint i;
+ struct
+ {
+ guint32 type;
+ guint32 msg;
+ gpointer data;
+ guint32 extra[6];
+ } msg;
+
+ buf = g_value_peek_pointer (v);
+
+ GST_LOG_OBJECT (dec, "Creating custom message of length %d",
+ GST_BUFFER_SIZE (buf));
+
+ msgdata = g_new0 (guint32, GST_BUFFER_SIZE (buf) + 2);
+ if (!msgdata)
+ goto could_not_allocate;
+
+ msg.type = 0x24;
+ msg.msg = 1 + ((dec->subformat >> 16) & 7);
+ msg.data = msgdata;
+ for (i = 0; i < 6; i++)
+ msg.extra[i] = 0;
+ msgdata[0] = dec->width;
+ msgdata[1] = dec->height;
+ for (i = 0; i < GST_BUFFER_SIZE (buf); i++)
+ msgdata[i + 2] = 4 * GST_BUFFER_DATA (buf)[i];
+
+ res = dec->custom_message (&msg, dec->context);
+
+ g_free (msgdata);
+ if (res)
+ goto could_not_send_message;
+ }
+
+ 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;
+ }
+
+could_not_initialize:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Initialization of REAL driver failed (%i).", res);
+ return FALSE;
+ }
+
+could_not_allocate:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Could not allocate memory.");
+ return FALSE;
+ }
+
+could_not_send_message:
+ {
+ dlclose (dec->handle);
+ dec->handle = NULL;
+ GST_DEBUG_OBJECT (dec, "Failed to send custom message needed for "
+ "initialization (%i).", res);
+ 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;
+ }
+}
+
+/* Attempts to open the correct library for the configured version */
+
+static gboolean
+open_library (GstRealVideoDec * dec)
+{
+ gchar *path = NULL;
+
+ GST_DEBUG_OBJECT (dec,
+ "Attempting to open shared library for real video version %d",
+ dec->version);
+
+ /* FIXME : Search for the correct library in various places if dec->path_rv20
+ * isn't set explicitely !
+ * Library names can also be different (ex : drv30.so vs drvc.so)
+ */
+
+ switch (dec->version) {
+ case GST_REAL_VIDEO_DEC_VERSION_2:
+ {
+ if (dec->path_rv20)
+ path = dec->path_rv20;
+ else if (g_file_test (DEFAULT_PATH_RV20, G_FILE_TEST_EXISTS))
+ path = DEFAULT_PATH_RV20;
+ else if (g_file_test ("/usr/lib/drv2.so.6.0", G_FILE_TEST_EXISTS))
+ path = "/usr/lib/drv2.so.6.0";
+ else
+ goto no_known_libraries;
+ break;
+ }
+ case GST_REAL_VIDEO_DEC_VERSION_3:
+ {
+ if (dec->path_rv30)
+ path = dec->path_rv30;
+ else if (g_file_test (DEFAULT_PATH_RV30, G_FILE_TEST_EXISTS))
+ path = DEFAULT_PATH_RV30;
+ else if (g_file_test ("/usr/lib/drv3.so.6.0", G_FILE_TEST_EXISTS))
+ path = "/usr/lib/drv3.so.6.0";
+ else
+ goto no_known_libraries;
+ break;
+ }
+ case GST_REAL_VIDEO_DEC_VERSION_4:
+ {
+ if (dec->path_rv40)
+ path = dec->path_rv40;
+ else if (g_file_test (DEFAULT_PATH_RV40, G_FILE_TEST_EXISTS))
+ path = DEFAULT_PATH_RV40;
+ else if (g_file_test ("/usr/lib/drv4.so.6.0", G_FILE_TEST_EXISTS))
+ path = "/usr/lib/drv4.so.6.0";
+ else
+ goto no_known_libraries;
+ break;
+ }
+ default:
+ goto unknown_version;
+ }
+
+ /* First close any open library */
+ close_library (dec);
+
+ dec->handle = dlopen (path, RTLD_LAZY);
+ if (!dec->handle)
+ goto could_not_open;
+
+ /* First try opening legacy symbols */
+ 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)) {
+ /* Else try loading new symbols */
+ dec->custom_message = dlsym (dec->handle, "RV40toYUV420CustomMessage");
+ dec->free = dlsym (dec->handle, "RV40toYUV420Free");
+ dec->init = dlsym (dec->handle, "RV40toYUV420Init");
+ dec->transform = dlsym (dec->handle, "RV40toYUV420Transform");
+
+ if (!(dec->custom_message && dec->free && dec->init && dec->transform))
+ goto could_not_load;
+ }
+
+ return TRUE;
+
+no_known_libraries:
+ {
+ GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
+ ("Couldn't find a realvideo shared library for version %d",
+ dec->version), (NULL));
+ return FALSE;
+ }
+
+unknown_version:
+ {
+ GST_ERROR_OBJECT (dec, "Cannot handle version %i.", dec->version);
+ return FALSE;
+ }
+
+could_not_open:
+ {
+ GST_ERROR_OBJECT (dec, "Could not open library '%s'.", path);
+ return FALSE;
+ }
+
+could_not_load:
+ {
+ close_library (dec);
+ GST_ERROR_OBJECT (dec, "Could not load all symbols.");
+ return FALSE;
+ }
+}
+
+static void
+close_library (GstRealVideoDec * dec)
+{
+ if (dec->context && dec->free) {
+ dec->free (dec->context);
+ dec->context = NULL;
+ }
+
+ dec->custom_message = NULL;
+ dec->free = NULL;
+ dec->init = NULL;
+ dec->transform = NULL;
+
+ if (dec->handle)
+ dlclose (dec->handle);
+ dec->handle = NULL;
+}
+
+static void
+gst_real_video_dec_init (GstRealVideoDec * dec, GstRealVideoDecClass * klass)
+{
+ dec->snk =
+ gst_pad_new_from_template (gst_static_pad_template_get (&snk_t), "sink");
+ gst_pad_set_setcaps_function (dec->snk, gst_real_video_dec_setcaps);
+ gst_pad_set_chain_function (dec->snk, gst_real_video_dec_chain);
+ gst_pad_set_activatepush_function (dec->snk,
+ gst_real_video_dec_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_real_video_dec_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, &realvideode_details);
+}
+
+static void
+gst_real_video_dec_finalize (GObject * object)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_DEC (object);
+
+ if (dec->adapter) {
+ g_object_unref (G_OBJECT (dec->adapter));
+ dec->adapter = NULL;
+ }
+
+ close_library (dec);
+
+ 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_real_video_dec_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_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_real_video_dec_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstRealVideoDec *dec = GST_REAL_VIDEO_DEC (object);
+
+ switch (prop_id) {
+ case PROP_PATH_RV20:
+ g_value_set_string (value, dec->path_rv20 ? dec->path_rv20 :
+ DEFAULT_PATH_RV20);
+ break;
+ case PROP_PATH_RV30:
+ g_value_set_string (value, dec->path_rv30 ? dec->path_rv30 :
+ DEFAULT_PATH_RV30);
+ break;
+ case PROP_PATH_RV40:
+ g_value_set_string (value, dec->path_rv40 ? dec->path_rv40 :
+ DEFAULT_PATH_RV40);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_real_video_dec_class_init (GstRealVideoDecClass * klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = gst_real_video_dec_set_property;
+ object_class->get_property = gst_real_video_dec_get_property;
+ object_class->finalize = gst_real_video_dec_finalize;
+
+ 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 (realvideode_debug, "realvideodec", 0,
+ "RealVideo decoder");
+}
diff --git a/gst/real/gstrealvideodec.h b/gst/real/gstrealvideodec.h
new file mode 100644
index 00000000..d4251223
--- /dev/null
+++ b/gst/real/gstrealvideodec.h
@@ -0,0 +1,90 @@
+/* GStreamer
+ *
+ * Copyright (C) 2006 Lutz Mueller <lutz@topfrose.de>
+ * 2006 Edward Hervey <bilboed@bilbod.com>
+ *
+ * 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_REAL_VIDEO_DEC_H__
+#define __GST_REAL_VIDEO_DEC_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_REAL_VIDEO_DEC (gst_real_video_dec_get_type())
+#define GST_REAL_VIDEO_DEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_REAL_VIDEO_DEC,GstRealVideoDec))
+#define GST_REAL_VIDEO_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_REAL_VIDEO_DEC,GstRealVideoDecClass))
+
+typedef struct _GstRealVideoDec GstRealVideoDec;
+typedef struct _GstRealVideoDecClass GstRealVideoDecClass;
+typedef enum _GstRealVideoDecVersion GstRealVideoDecVersion;
+
+enum _GstRealVideoDecVersion
+{
+ GST_REAL_VIDEO_DEC_VERSION_2 = 2,
+ GST_REAL_VIDEO_DEC_VERSION_3 = 3,
+ GST_REAL_VIDEO_DEC_VERSION_4 = 4
+};
+
+struct _GstRealVideoDec
+{
+ GstElement parent;
+
+ GstPad *src, *snk;
+
+ /* Caps */
+ GstRealVideoDecVersion 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) (gpointer, gpointer);
+ guint32 (*free) (gpointer);
+ guint32 (*init) (gpointer, gpointer);
+ guint32 (*transform) (gchar *, gchar *, gpointer, gpointer, 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 _GstRealVideoDecClass
+{
+ GstElementClass parent_class;
+};
+
+GType gst_real_video_dec_get_type (void);
+
+G_END_DECLS
+#endif /* __GST_REAL_VIDEO_DEC_H__ */
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-30 20:32:22 +0000