gstreamer/gst/real/gstrealaudiodec.c

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/* RealAudio wrapper plugin
*
* Copyright (C) 2006 Lutz Mueller <lutz@topfrose.de>
* Copyright (C) 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 "gstreal.h"
#include "gstrealaudiodec.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (real_audio_dec_debug);
#define GST_CAT_DEFAULT real_audio_dec_debug
static GstElementDetails real_audio_dec_details =
GST_ELEMENT_DETAILS ("RealAudio decoder",
"Codec/Decoder/Audio", "Decoder for RealAudio streams",
"Lutz Mueller <lutz@topfrose.de>");
static GstStaticPadTemplate snk_t =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-pn-realaudio; " "audio/x-sipro "));
static GstStaticPadTemplate src_t =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"width = (int) [ 1, MAX ], "
"depth = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, MAX ]"));
#define DEFAULT_RACOOK_NAMES "cook.so:cook.so.6.0"
#define DEFAULT_RAATRK_NAMES "atrc.so:atrc.so.6.0"
#define DEFAULT_RA14_4_NAMES "14_4.so.6.0"
#define DEFAULT_RA28_8_NAMES "28_8.so.6.0"
#define DEFAULT_RASIPR_NAMES "sipr.so:sipr.so.6.0"
#define DEFAULT_PWD "Ardubancel Quazanga"
enum
{
PROP_0,
PROP_REAL_CODECS_PATH,
PROP_RACOOK_NAMES,
PROP_RAATRK_NAMES,
PROP_RA14_4_NAMES,
PROP_RA28_8_NAMES,
PROP_RASIPR_NAMES,
PROP_PASSWORD
};
typedef enum
{
GST_REAL_AUDIO_DEC_VERSION_COOK = 8,
GST_REAL_AUDIO_DEC_VERSION_ATRK = 3,
GST_REAL_AUDIO_DEC_VERSION_14_4 = 4,
GST_REAL_AUDIO_DEC_VERSION_28_8 = 5,
GST_REAL_AUDIO_DEC_VERSION_SIPR = 6
} GstRealAudioDecVersion;
typedef struct
{
guint16 (*RADecode) (gpointer, guint8 *, guint32, guint8 *, guint32 *,
guint32);
guint16 (*RACloseCodec) (gpointer);
guint16 (*RAFreeDecoder) (gpointer);
guint16 (*RAInitDecoder) (gpointer, gpointer);
guint16 (*RAOpenCodec2) (gpointer, const gchar *);
guint16 (*RASetFlavor) (gpointer, guint16);
void (*SetDLLAccessPath) (gchar *);
void (*RASetPwd) (gpointer, gchar *);
} RealFunctions;
typedef struct
{
guint32 samplerate;
guint16 width;
guint16 channels;
guint16 quality;
guint32 leaf_size;
guint32 packet_size;
guint32 datalen;
gpointer data;
} RAInit;
struct _GstRealAudioDec
{
GstElement parent;
GstPad *src, *snk;
/* Caps */
guint width, height, leaf_size;
/* Hooks */
GModule *module;
RealFunctions funcs;
/* Used by the REAL library. */
gpointer context;
/* Properties */
gchar *real_codecs_path, *racook_names, *raatrk_names, *ra14_4_names,
*ra28_8_names, *rasipr_names;
gchar *pwd;
};
struct _GstRealAudioDecClass
{
GstElementClass parent_class;
};
GST_BOILERPLATE (GstRealAudioDec, gst_real_audio_dec, GstElement,
GST_TYPE_ELEMENT);
static GstFlowReturn
gst_real_audio_dec_chain (GstPad * pad, GstBuffer * in)
{
GstRealAudioDec *dec = GST_REAL_AUDIO_DEC (GST_PAD_PARENT (pad));
GstFlowReturn flow;
GstClockTime timestamp;
GstBuffer *out = NULL;
guint16 res = 0;
guint len;
if (G_UNLIKELY (dec->funcs.RADecode == NULL || dec->module == NULL))
goto not_negotiated;
timestamp = GST_BUFFER_TIMESTAMP (in);
flow = gst_pad_alloc_buffer (dec->src, GST_BUFFER_OFFSET_NONE,
dec->width * dec->leaf_size * dec->height * 16,
GST_PAD_CAPS (dec->src), &out);
if (flow != GST_FLOW_OK)
goto done;
res = dec->funcs.RADecode (dec->context, GST_BUFFER_DATA (in),
GST_BUFFER_SIZE (in), GST_BUFFER_DATA (out), &len, -1);
if (res != 0)
goto could_not_decode;
GST_BUFFER_SIZE (out) = len;
GST_BUFFER_TIMESTAMP (out) = timestamp;
flow = gst_pad_push (dec->src, out);
done:
gst_buffer_unref (in);
return flow;
/* Errors */
could_not_decode:
{
gst_buffer_unref (out);
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL),
("Could not decode buffer (%i).", res));
flow = GST_FLOW_ERROR;
goto done;
}
not_negotiated:
{
GST_WARNING_OBJECT (dec, "decoder not open, probably no input caps set "
"yet, caps on input buffer: %" GST_PTR_FORMAT, GST_BUFFER_CAPS (in));
flow = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
}
static gboolean
gst_real_audio_dec_setcaps (GstPad * pad, GstCaps * caps)
{
GstRealAudioDec *dec = GST_REAL_AUDIO_DEC (GST_PAD_PARENT (pad));
GstStructure *s = gst_caps_get_structure (caps, 0);
gpointer ra_close_codec, ra_decode, ra_free_decoder;
gpointer ra_open_codec2, ra_init_decoder, ra_set_flavor;
gpointer set_dll_access_path = NULL, ra_set_pwd = NULL;
gchar *path, *names;
gchar **split_names, **split_path;
gint version, flavor, channels, rate, leaf_size, packet_size, width, height;
guint16 res = 0;
RAInit data;
gboolean bres;
const GValue *v;
GstBuffer *buf = NULL;
const gchar *name = gst_structure_get_name (s);
GModule *module = NULL;
gpointer context = NULL;
RealFunctions funcs = { NULL, };
int i, j;
gchar *tmppath = NULL;
if (!strcmp (name, "audio/x-sipro"))
version = GST_REAL_AUDIO_DEC_VERSION_SIPR;
else {
if (!gst_structure_get_int (s, "raversion", &version))
goto missing_keys;
}
if (!gst_structure_get_int (s, "flavor", &flavor) ||
!gst_structure_get_int (s, "channels", &channels) ||
!gst_structure_get_int (s, "width", &width) ||
!gst_structure_get_int (s, "rate", &rate) ||
!gst_structure_get_int (s, "height", &height) ||
!gst_structure_get_int (s, "leaf_size", &leaf_size) ||
!gst_structure_get_int (s, "packet_size", &packet_size))
goto missing_keys;
if ((v = gst_structure_get_value (s, "codec_data")))
buf = g_value_peek_pointer (v);
path = dec->real_codecs_path ? dec->real_codecs_path :
DEFAULT_REAL_CODECS_PATH;
switch (version) {
case GST_REAL_AUDIO_DEC_VERSION_COOK:
names = dec->racook_names ? dec->racook_names : DEFAULT_RACOOK_NAMES;
break;
case GST_REAL_AUDIO_DEC_VERSION_ATRK:
names = dec->raatrk_names ? dec->raatrk_names : DEFAULT_RAATRK_NAMES;
break;
case GST_REAL_AUDIO_DEC_VERSION_14_4:
names = dec->ra14_4_names ? dec->ra14_4_names : DEFAULT_RA14_4_NAMES;
break;
case GST_REAL_AUDIO_DEC_VERSION_28_8:
names = dec->ra28_8_names ? dec->ra28_8_names : DEFAULT_RA28_8_NAMES;
break;
case GST_REAL_AUDIO_DEC_VERSION_SIPR:
names = dec->rasipr_names ? dec->rasipr_names : DEFAULT_RASIPR_NAMES;
break;
default:
goto unknown_version;
}
split_path = g_strsplit (path, ":", 0);
split_names = g_strsplit (names, ":", 0);
for (i = 0; split_path[i]; i++) {
for (j = 0; split_names[j]; j++) {
gchar *codec = g_strconcat (split_path[i], "/", split_names[j], NULL);
module = g_module_open (codec, G_MODULE_BIND_LAZY);
g_free (codec);
if (module)
goto codec_search_done;
}
}
codec_search_done:
/* we keep the path for a while to set the dll access path */
g_strfreev (split_names);
if (module == NULL)
goto could_not_open;
if (!g_module_symbol (module, "RACloseCodec", &ra_close_codec) ||
!g_module_symbol (module, "RADecode", &ra_decode) ||
!g_module_symbol (module, "RAFreeDecoder", &ra_free_decoder) ||
!g_module_symbol (module, "RAOpenCodec2", &ra_open_codec2) ||
!g_module_symbol (module, "RAInitDecoder", &ra_init_decoder) ||
!g_module_symbol (module, "RASetFlavor", &ra_set_flavor)) {
goto could_not_load;
}
g_module_symbol (module, "RASetPwd", &ra_set_pwd);
g_module_symbol (module, "SetDLLAccessPath", &set_dll_access_path);
funcs.RACloseCodec = (guint16 (*)(gpointer)) ra_close_codec;
funcs.RADecode =
(guint16 (*)(gpointer, guint8 *, guint32, guint8 *, guint32 *, guint32))
ra_decode;
funcs.RAFreeDecoder = (guint16 (*)(gpointer)) ra_free_decoder;
funcs.RAOpenCodec2 = (guint16 (*)(gpointer, const gchar *)) ra_open_codec2;
funcs.RAInitDecoder = (guint16 (*)(gpointer, gpointer)) ra_init_decoder;
funcs.RASetFlavor = (guint16 (*)(gpointer, guint16)) ra_set_flavor;
funcs.RASetPwd = (void (*)(gpointer, gchar *)) ra_set_pwd;
funcs.SetDLLAccessPath = (void (*)(gchar *)) set_dll_access_path;
if (funcs.SetDLLAccessPath)
funcs.SetDLLAccessPath (split_path[i]);
tmppath = g_strdup_printf ("%s/", split_path[i]);
if ((res = funcs.RAOpenCodec2 (&context, tmppath))) {
g_free (tmppath);
goto could_not_initialize;
}
g_free (tmppath);
/* now we are done with the split paths, so free them */
g_strfreev (split_path);
data.samplerate = rate;
data.width = width;
data.channels = channels;
data.quality = 100;
data.leaf_size = leaf_size;
data.packet_size = packet_size;
data.datalen = buf ? GST_BUFFER_SIZE (buf) : 0;
data.data = buf ? GST_BUFFER_DATA (buf) : NULL;
if ((res = funcs.RAInitDecoder (context, &data))) {
GST_WARNING_OBJECT (dec, "RAInitDecoder() failed");
goto could_not_initialize;
}
if (funcs.RASetPwd) {
funcs.RASetPwd (context, dec->pwd ? dec->pwd : DEFAULT_PWD);
}
if ((res = funcs.RASetFlavor (context, flavor))) {
GST_WARNING_OBJECT (dec, "RASetFlavor(%d) failed", flavor);
goto could_not_initialize;
}
caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"width", G_TYPE_INT, width,
"depth", G_TYPE_INT, width,
"rate", G_TYPE_INT, rate,
"channels", G_TYPE_INT, channels, "signed", G_TYPE_BOOLEAN, TRUE, NULL);
bres = gst_pad_set_caps (GST_PAD (dec->src), caps);
gst_caps_unref (caps);
if (!bres)
goto could_not_set_caps;
dec->width = width;
dec->height = height;
dec->leaf_size = leaf_size;
if (dec->context) {
dec->funcs.RACloseCodec (dec->context);
dec->funcs.RAFreeDecoder (dec->context);
}
dec->context = context;
if (dec->module)
g_module_close (dec->module);
dec->module = module;
dec->funcs = funcs;
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:
{
g_strfreev (split_path);
GST_DEBUG_OBJECT (dec, "Could not find library '%s' in '%s'", names, path);
return FALSE;
}
could_not_load:
{
g_module_close (module);
g_strfreev (split_path);
GST_DEBUG_OBJECT (dec, "Could not load all symbols: %s", g_module_error ());
return FALSE;
}
could_not_initialize:
{
if (context) {
funcs.RACloseCodec (context);
funcs.RAFreeDecoder (context);
}
g_module_close (module);
GST_WARNING_OBJECT (dec, "Initialization of REAL driver failed (%i).", res);
return FALSE;
}
could_not_set_caps:
{
if (context) {
funcs.RACloseCodec (context);
funcs.RAFreeDecoder (context);
}
g_module_close (module);
GST_DEBUG_OBJECT (dec, "Could not convince peer to accept caps.");
return FALSE;
}
}
static void
gst_real_audio_dec_init (GstRealAudioDec * dec, GstRealAudioDecClass * klass)
{
dec->snk = gst_pad_new_from_static_template (&snk_t, "sink");
gst_pad_set_setcaps_function (dec->snk,
GST_DEBUG_FUNCPTR (gst_real_audio_dec_setcaps));
gst_pad_set_chain_function (dec->snk,
GST_DEBUG_FUNCPTR (gst_real_audio_dec_chain));
gst_element_add_pad (GST_ELEMENT (dec), dec->snk);
dec->src = gst_pad_new_from_static_template (&src_t, "src");
gst_pad_use_fixed_caps (dec->src);
gst_element_add_pad (GST_ELEMENT (dec), dec->src);
}
static void
gst_real_audio_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, &real_audio_dec_details);
}
static GstStateChangeReturn
gst_real_audio_dec_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_real_audio_dec_finalize (GObject * object)
{
GstRealAudioDec *dec = GST_REAL_AUDIO_DEC (object);
if (dec->context) {
dec->funcs.RACloseCodec (dec->context);
/* Calling RAFreeDecoder seems to randomly cause SEGFAULTs.
* All other implementation (xine, mplayer) have also got this function call
* commented. So until we know more, we comment it too. */
/* dec->funcs.RAFreeDecoder (dec->context); */
dec->context = NULL;
}
if (dec->module) {
g_module_close (dec->module);
dec->module = NULL;
}
if (dec->real_codecs_path) {
g_free (dec->real_codecs_path);
dec->real_codecs_path = NULL;
}
if (dec->racook_names) {
g_free (dec->racook_names);
dec->racook_names = NULL;
}
if (dec->raatrk_names) {
g_free (dec->raatrk_names);
dec->raatrk_names = NULL;
}
if (dec->ra14_4_names) {
g_free (dec->ra14_4_names);
dec->ra14_4_names = NULL;
}
if (dec->ra28_8_names) {
g_free (dec->ra28_8_names);
dec->ra28_8_names = NULL;
}
if (dec->rasipr_names) {
g_free (dec->rasipr_names);
dec->rasipr_names = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_real_audio_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRealAudioDec *dec = GST_REAL_AUDIO_DEC (object);
switch (prop_id) {
case PROP_REAL_CODECS_PATH:
if (dec->real_codecs_path)
g_free (dec->real_codecs_path);
dec->real_codecs_path = g_value_dup_string (value);
break;
case PROP_RACOOK_NAMES:
if (dec->racook_names)
g_free (dec->racook_names);
dec->racook_names = g_value_dup_string (value);
break;
case PROP_RAATRK_NAMES:
if (dec->raatrk_names)
g_free (dec->raatrk_names);
dec->raatrk_names = g_value_dup_string (value);
break;
case PROP_RA14_4_NAMES:
if (dec->ra14_4_names)
g_free (dec->ra14_4_names);
dec->ra14_4_names = g_value_dup_string (value);
break;
case PROP_RA28_8_NAMES:
if (dec->ra28_8_names)
g_free (dec->ra28_8_names);
dec->ra28_8_names = g_value_dup_string (value);
break;
case PROP_RASIPR_NAMES:
if (dec->rasipr_names)
g_free (dec->rasipr_names);
dec->rasipr_names = g_value_dup_string (value);
break;
case PROP_PASSWORD:
if (dec->pwd)
g_free (dec->pwd);
dec->pwd = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_real_audio_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRealAudioDec *dec = GST_REAL_AUDIO_DEC (object);
switch (prop_id) {
case PROP_REAL_CODECS_PATH:
g_value_set_string (value, dec->real_codecs_path ? dec->real_codecs_path
: DEFAULT_REAL_CODECS_PATH);
break;
case PROP_RACOOK_NAMES:
g_value_set_string (value, dec->racook_names ? dec->racook_names :
DEFAULT_RACOOK_NAMES);
break;
case PROP_RAATRK_NAMES:
g_value_set_string (value, dec->raatrk_names ? dec->raatrk_names :
DEFAULT_RAATRK_NAMES);
break;
case PROP_RA14_4_NAMES:
g_value_set_string (value, dec->ra14_4_names ? dec->ra14_4_names :
DEFAULT_RA14_4_NAMES);
break;
case PROP_RA28_8_NAMES:
g_value_set_string (value, dec->ra28_8_names ? dec->ra28_8_names :
DEFAULT_RA28_8_NAMES);
break;
case PROP_RASIPR_NAMES:
g_value_set_string (value, dec->rasipr_names ? dec->rasipr_names :
DEFAULT_RASIPR_NAMES);
break;
case PROP_PASSWORD:
g_value_set_string (value, dec->pwd ? dec->pwd : DEFAULT_PWD);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_real_audio_dec_class_init (GstRealAudioDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gst_real_audio_dec_set_property;
object_class->get_property = gst_real_audio_dec_get_property;
object_class->finalize = gst_real_audio_dec_finalize;
element_class->change_state = gst_real_audio_dec_change_state;
g_object_class_install_property (object_class, PROP_REAL_CODECS_PATH,
g_param_spec_string ("real_codecs_path",
"Path where to search for RealPlayer codecs",
"Path where to search for RealPlayer codecs",
DEFAULT_REAL_CODECS_PATH, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_RACOOK_NAMES,
g_param_spec_string ("racook_names", "Names of cook driver",
"Names of cook driver", DEFAULT_RACOOK_NAMES, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_RAATRK_NAMES,
g_param_spec_string ("raatrk_names", "Names of atrk driver",
"Names of atrk driver", DEFAULT_RAATRK_NAMES, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_RA14_4_NAMES,
g_param_spec_string ("ra14_4_names", "Names of 14_4 driver",
"Names of 14_4 driver", DEFAULT_RA14_4_NAMES, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_RA28_8_NAMES,
g_param_spec_string ("ra28_8_names", "Names of 28_8 driver",
"Names of 28_8 driver", DEFAULT_RA28_8_NAMES, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_RASIPR_NAMES,
g_param_spec_string ("rasipr_names", "Names of sipr driver",
"Names of sipr driver", DEFAULT_RASIPR_NAMES, G_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_PASSWORD,
g_param_spec_string ("password", "Password",
"Password", DEFAULT_PWD, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (real_audio_dec_debug, "realaudiodec", 0,
"RealAudio decoder");
}