static GstFlowReturn
gst_mms_create (GstPushSrc * psrc, GstBuffer ** buf)
{
GstMMS *mmssrc;
guint8 *data;
guint blocksize;
gint result;
mms_off_t offset;
*buf = NULL;
mmssrc = GST_MMS (psrc);
offset = mmsx_get_current_pos (mmssrc->connection);
/* Check if a seek perhaps has wrecked our connection */
if (offset == -1) {
GST_DEBUG_OBJECT (mmssrc,
"connection broken (probably an error during mmsx_seek_time during a convert query) returning FLOW_ERROR");
return GST_FLOW_ERROR;
}
/* Choose blocksize best for optimum performance */
if (offset == 0)
blocksize = mmsx_get_asf_header_len (mmssrc->connection);
else
blocksize = mmsx_get_asf_packet_len (mmssrc->connection);
*buf = gst_buffer_new_and_alloc (blocksize);
data = GST_BUFFER_DATA (*buf);
GST_BUFFER_SIZE (*buf) = 0;
GST_LOG_OBJECT (mmssrc, "reading %d bytes", blocksize);
result = mmsx_read (NULL, mmssrc->connection, (char *) data, blocksize);
/* EOS? */
if (result == 0)
goto eos;
GST_BUFFER_OFFSET (*buf) = offset;
GST_BUFFER_SIZE (*buf) = result;
GST_LOG_OBJECT (mmssrc, "Returning buffer with offset %" G_GINT64_FORMAT
" and size %u", GST_BUFFER_OFFSET (*buf), GST_BUFFER_SIZE (*buf));
gst_buffer_set_caps (*buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (mmssrc)));
return GST_FLOW_OK;
eos:
{
GST_DEBUG_OBJECT (mmssrc, "EOS");
gst_buffer_unref (*buf);
*buf = NULL;
return GST_FLOW_UNEXPECTED;
}
}
static GstFlowReturn
gst_mms_create (GstPushSrc * psrc, GstBuffer ** buf)
{
GstMMS *mmssrc = GST_MMS (psrc);
guint8 *data;
guint blocksize;
gint result;
mms_off_t offset;
*buf = NULL;
offset = mmsx_get_current_pos (mmssrc->connection);
/* Check if a seek perhaps has wrecked our connection */
if (offset == -1) {
GST_ERROR_OBJECT (mmssrc,
"connection broken (probably an error during mmsx_seek_time during a convert query) returning FLOW_ERROR");
return GST_FLOW_ERROR;
}
/* Choose blocksize best for optimum performance */
if (offset == 0)
blocksize = mmsx_get_asf_header_len (mmssrc->connection);
else
blocksize = mmsx_get_asf_packet_len (mmssrc->connection);
data = g_try_malloc (blocksize);
if (!data) {
GST_ERROR_OBJECT (mmssrc, "Failed to allocate %u bytes", blocksize);
return GST_FLOW_ERROR;
}
GST_LOG_OBJECT (mmssrc, "reading %d bytes", blocksize);
result = mmsx_read (NULL, mmssrc->connection, (char *) data, blocksize);
/* EOS? */
if (result == 0)
goto eos;
*buf = gst_buffer_new_wrapped (data, result);
GST_BUFFER_OFFSET (*buf) = offset;
GST_LOG_OBJECT (mmssrc, "Returning buffer with offset %" G_GINT64_FORMAT
" and size %u", offset, result);
return GST_FLOW_OK;
eos:
{
GST_DEBUG_OBJECT (mmssrc, "EOS");
g_free (data);
*buf = NULL;
return GST_FLOW_EOS;
}
}
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;
}
//---------------------------------------------------------------------------
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;
}
