static void
gst_mms_finalize (GObject * gobject)
{
GstMMS *mmssrc = GST_MMS (gobject);
/* We may still have a connection open, as we preserve unused / pristine
open connections in stop to reuse them in start. */
if (mmssrc->connection) {
mmsx_close (mmssrc->connection);
mmssrc->connection = NULL;
}
if (mmssrc->current_connection_uri_name) {
g_free (mmssrc->current_connection_uri_name);
mmssrc->current_connection_uri_name = NULL;
}
if (mmssrc->uri_name) {
g_free (mmssrc->uri_name);
mmssrc->uri_name = NULL;
}
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (gobject);
}
void mmsdown(const char *url,const char *filename,double sumtime)
{
mmsx_t* mmsx;
mms_io_t *io = NULL;
void *data;
FILE *file;
int length=1024;
int bandwidth=1000;
int stop=0;
double time;
file=fopen(filename,"wb+");
data=file;
mmsx=mmsx_connect (io, data, url,bandwidth);//请求文件头，开始接受asf数据
while(!stop && mmsx != NULL)
{
time=mmsx_read (io, mmsx, file, length);//下载流媒体包，长度为length,返回音频时间
if(sumtime > 0 && time>=sumtime)
stop=1;
//{
// int iresult;
// struct _stat buf;
// iresult = _stat(filename, &buf);
// printf("%f\n", (double)buf.st_size / 1024 / 1024);
//}
}
if(mmsx)
mmsx_close (mmsx);
if(file)
fclose(file);
}
//---------------------------------------------------------------------------
size_t Reader_libmms::Format_Test(MediaInfo_Internal* MI, const String &File_Name)
{
//Opening the file
mmsx_t* Handle=mmsx_connect(0, 0, Ztring(File_Name).To_Local().c_str(), (int)-1);
if (Handle==NULL)
return 0;
mms_off_t Offset=mmsx_seek(0, Handle, 0, SEEK_SET);
uint32_t Length=mmsx_get_length(Handle);
//Buffer
size_t Buffer_Size_Max=Buffer_NormalSize;
int8u* Buffer=new int8u[Buffer_Size_Max];
//Parser
MI->Open_Buffer_Init(Length, File_Name);
//Test the format with buffer
bool StopAfterFilled=MI->Config.File_StopAfterFilled_Get();
std::bitset<32> Status;
do
{
//Seek (if needed)
if (MI->Open_Buffer_Continue_GoTo_Get()!=(int64u)-1)
{
if (MI->Open_Buffer_Continue_GoTo_Get()>=Length)
break; //Seek requested, but on a file bigger in theory than what is in the real file, we can't do this
if (mmsx_seek(0, Handle, mms_off_t(MI->Open_Buffer_Continue_GoTo_Get()), SEEK_SET)!=MI->Open_Buffer_Continue_GoTo_Get())
break; //File is not seekable
MI->Open_Buffer_Init((int64u)-1, MI->Open_Buffer_Continue_GoTo_Get());
}
//Buffering
size_t Buffer_Size=mmsx_read(0, Handle, (char*)Buffer, (int)Buffer_Size_Max);
if (Buffer_Size==0)
break; //Problem while reading
//Parser
Status=MI->Open_Buffer_Continue(Buffer, Buffer_Size);
}
while (!(Status[File__Analyze::IsFinished] || (StopAfterFilled && Status[File__Analyze::IsFilled])));
if (Length==0) //If Size==0, Status is never updated
Status=MI->Open_Buffer_Continue(NULL, 0);
//File
mmsx_close(Handle);
//Buffer
delete[] Buffer; //Buffer=NULL;
//Is this file detected?
if (!Status[File__Analyze::IsAccepted])
return 0;
MI->Open_Buffer_Finalize();
return 1;
}
static void
mms_close (DB_FILE *stream) {
//fprintf (stderr, "\033[0;32mmms_close was called\033[37;0m\n");
assert (stream);
MMS_FILE *fp = (MMS_FILE *)stream;
if (fp->stream) {
mmsx_close (fp->stream);
}
if (fp->fname) {
free (fp->fname);
}
free (stream);
}
void MMSStreamReader::abort()
{
m_mutex.lock();
if (m_aborted)
{
m_mutex.unlock();
return;
}
m_aborted = true;
m_mutex.unlock();
if(m_thread->isRunning())
m_thread->wait();
m_ready = false;
if (m_handle)
mmsx_close(m_handle);
m_handle = 0;
}
static gboolean
gst_mms_stop (GstBaseSrc * bsrc)
{
GstMMS *mms = GST_MMS (bsrc);
if (mms->connection != NULL) {
/* Check if the connection is still pristine, that is if no more then
just the mmslib cached asf header has been read. If it is still pristine
preserve it as we often are re-started with the same URL and connecting
is expensive */
if (mmsx_get_current_pos (mms->connection) >
mmsx_get_asf_header_len (mms->connection)) {
mmsx_close (mms->connection);
mms->connection = NULL;
g_free (mms->current_connection_uri_name);
mms->current_connection_uri_name = NULL;
}
}
return TRUE;
}
static gboolean
gst_mms_start (GstBaseSrc * bsrc)
{
GstMMS *mms;
guint bandwidth_avail;
mms = GST_MMS (bsrc);
if (!mms->uri_name || *mms->uri_name == '\0')
goto no_uri;
if (mms->connection_speed)
bandwidth_avail = mms->connection_speed;
else
bandwidth_avail = G_MAXINT;
/* If we already have a connection, and the uri isn't changed, reuse it,
as connecting is expensive. */
if (mms->connection) {
if (!strcmp (mms->uri_name, mms->current_connection_uri_name)) {
GST_DEBUG_OBJECT (mms, "Reusing existing connection for %s",
mms->uri_name);
return TRUE;
} else {
mmsx_close (mms->connection);
g_free (mms->current_connection_uri_name);
mms->current_connection_uri_name = NULL;
}
}
/* FIXME: pass some sane arguments here */
GST_DEBUG_OBJECT (mms,
"Trying mms_connect (%s) with bandwidth constraint of %d bps",
mms->uri_name, bandwidth_avail);
mms->connection = mmsx_connect (NULL, NULL, mms->uri_name, bandwidth_avail);
if (mms->connection) {
/* Save the uri name so that it can be checked for connection reusing,
see above. */
mms->current_connection_uri_name = g_strdup (mms->uri_name);
GST_DEBUG_OBJECT (mms, "Connect successful");
return TRUE;
} else {
gchar *url, *location;
GST_ERROR_OBJECT (mms,
"Could not connect to this stream, redirecting to rtsp");
location = gst_uri_get_location (mms->uri_name);
url = g_strdup_printf ("rtsp://%s", location);
g_free (location);
gst_element_post_message (GST_ELEMENT_CAST (mms),
gst_message_new_element (GST_OBJECT_CAST (mms),
gst_structure_new ("redirect", "new-location", G_TYPE_STRING, url,
NULL)));
return FALSE;
}
no_uri:
{
GST_ELEMENT_ERROR (mms, RESOURCE, OPEN_READ,
("No URI to open specified"), (NULL));
return FALSE;
}
}
//---------------------------------------------------------------------------
size_t Reader_libmms::Format_Test(MediaInfo_Internal* MI, const String &File_Name)
{
mmsx_t* Handle;
//Opening the file
#if MEDIAINFO_LIBMMS_DESCRIBE_SUPPORT
if (MI->Config.File_Mmsh_Describe_Only_Get())
{
// Use MMSH & Send a DESCRIBE request
mmsh_t* MmshHandle;
MmshHandle=mmsh_describe_request(0, 0, Ztring(File_Name).To_Local().c_str());
if (MmshHandle==NULL)
return 0;
Handle=mmsx_set_mmsh_handle(MmshHandle);
if (Handle==NULL)
{
mmsh_close(MmshHandle);
return 0;
}
}
else
#endif //MEDIAINFO_LIBMMS_DESCRIBE_SUPPORT
{
// Use MMS or MMSH (Send a DESCRIBE & PLAY request)
Handle=mmsx_connect(0, 0, Ztring(File_Name).To_Local().c_str(), (int)-1);
if (Handle==NULL)
return 0;
}
//Init
size_t Buffer_Size_Max;
uint32_t Length;
if (!MI->Config.File_Mmsh_Describe_Only_Get())
{
//Buffer
Buffer_Size_Max=Buffer_NormalSize;
//MediaInfo init
mms_off_t Offset=mmsx_seek(0, Handle, 0, SEEK_SET);
uint32_t Length=mmsx_get_length(Handle);
MI->Open_Buffer_Init(Length, File_Name);
}
else
{
//Buffer
Buffer_Size_Max=mmsx_get_asf_header_len(Handle);
//MediaInfo init
Length=(uint32_t)-1;
MI->Open_Buffer_Init((int64u)-1, File_Name);
}
int8u* Buffer=new int8u[Buffer_Size_Max];
//Test the format with buffer
bool StopAfterFilled=MI->Config.File_StopAfterFilled_Get();
std::bitset<32> Status;
do
{
//Seek (if needed)
if (MI->Open_Buffer_Continue_GoTo_Get()!=(int64u)-1)
{
if (MI->Open_Buffer_Continue_GoTo_Get()>=Length)
break; //Seek requested, but on a file bigger in theory than what is in the real file, we can't do this
if (mmsx_seek(0, Handle, mms_off_t(MI->Open_Buffer_Continue_GoTo_Get()), SEEK_SET)!=MI->Open_Buffer_Continue_GoTo_Get())
break; //File is not seekable
MI->Open_Buffer_Init((int64u)-1, MI->Open_Buffer_Continue_GoTo_Get());
}
//Buffering
size_t Buffer_Size;
if (!MI->Config.File_Mmsh_Describe_Only_Get())
Buffer_Size=mmsx_read(0, Handle, (char*)Buffer, (int)Buffer_Size_Max);
else
Buffer_Size=mmsx_peek_header(Handle, (char*)Buffer, (int)Buffer_Size_Max);
//Parser
Status=MI->Open_Buffer_Continue(Buffer, Buffer_Size);
if (Buffer_Size==0 || MI->Config.File_Mmsh_Describe_Only_Get())
break;
}
while (!(Status[File__Analyze::IsFinished] || (StopAfterFilled && Status[File__Analyze::IsFilled])));
//File
mmsx_close(Handle);
//Buffer
delete[] Buffer; //Buffer=NULL;
//Is this file detected?
if (!Status[File__Analyze::IsAccepted])
return 0;
MI->Open_Buffer_Finalize();
return 1;
}
