static size_t read_test(const stdString &index_name, const stdString &channel_name,
double delta,
const epicsTime *start = 0, const epicsTime *end = 0)
{
stdString text;
size_t num = 0;
try
{
IndexFile index;
index.open(index_name);
PlotReader reader(index, delta);
const RawValue::Data *value = reader.find(channel_name, start);
while (value &&
(end==0 || RawValue::getTime(value) < *end))
{
++num;
LOG_ASSERT(value == reader.get());
reader.toString(text);
printf(" %s\n", text.c_str());
value = reader.next();
}
}
catch (GenericException &e)
{
printf("Exception:\n%s\n", e.what());
return 0;
}
return num;
}
IndexFile* IndexFileFactory::openWith(const char* format_name,
const char* filename, AVFormatContext* input, const char* stream_filename)
{
const RegEntry* entry = getEntry(format_name);
if(!entry)
{
fprintf(stderr, "Index file format '%s' is not supported\n",
format_name);
return NULL;
}
IndexFile* f = entry->creator(input);
if(!f->open(filename, stream_filename))
{
delete f;
return NULL;
}
return f;
}
IndexFile* IndexFileFactory::detectIndexFile(
AVFormatContext* input, const char* filename)
{
if(!g_entryList)
return NULL;
for(int i = 0; i < g_entryList->size(); ++i)
{
const RegEntry& entry = g_entryList->at(i);
if(!entry.detector(input, filename))
continue;
IndexFile* f = entry.creator(input);
if(f->open(NULL, filename))
return f;
delete f;
}
return NULL;
}
