// figure processing latency by doing 'dry runs' of filterBuffer()
bigtime_t StepMotionBlurFilter::calcProcessingLatency() {
PRINT(("StepMotionBlurFilter::calcProcessingLatency()\n"));
if(m_output.destination == media_destination::null) {
PRINT(("\tNot connected.\n"));
return 0LL;
}
// allocate a temporary buffer group
BBufferGroup* pTestGroup = new BBufferGroup(m_output.format.u.raw_video.display.line_width * m_output.format.u.raw_video.display.line_count *4, 1);
// fetch a buffer
BBuffer* pBuffer = pTestGroup->RequestBuffer(m_output.format.u.raw_video.display.line_width * m_output.format.u.raw_video.display.line_count * 4);
ASSERT(pBuffer);
pBuffer->Header()->type = B_MEDIA_RAW_VIDEO;
pBuffer->Header()->size_used = m_output.format.u.raw_video.display.line_width * m_output.format.u.raw_video.display.line_count * 4;
// run the test
bigtime_t preTest = system_time();
filterBuffer(pBuffer);
bigtime_t elapsed = system_time()-preTest;
// clean up
pBuffer->Recycle();
delete pTestGroup;
// reset filter state
initFilter();
return elapsed;
}
// figure processing latency by doing 'dry runs' of filterBuffer()
bigtime_t FlangerNode::calcProcessingLatency() {
PRINT(("FlangerNode::calcProcessingLatency()\n"));
if(m_output.destination == media_destination::null) {
PRINT(("\tNot connected.\n"));
return 0LL;
}
// allocate a temporary buffer group
BBufferGroup* pTestGroup = new BBufferGroup(
m_output.format.u.raw_audio.buffer_size, 1);
// fetch a buffer
BBuffer* pBuffer = pTestGroup->RequestBuffer(
m_output.format.u.raw_audio.buffer_size);
ASSERT(pBuffer);
pBuffer->Header()->type = B_MEDIA_RAW_AUDIO;
pBuffer->Header()->size_used = m_output.format.u.raw_audio.buffer_size;
// run the test
bigtime_t preTest = system_time();
filterBuffer(pBuffer);
bigtime_t elapsed = system_time()-preTest;
// clean up
pBuffer->Recycle();
delete pTestGroup;
// reset filter state
initFilter();
return elapsed;
}
// figure processing latency by doing 'dry runs' of processBuffer()
bigtime_t AudioFilterNode::calcProcessingLatency() {
PRINT(("AudioFilterNode::calcProcessingLatency()\n"));
ASSERT(m_input.source != media_source::null);
ASSERT(m_output.destination != media_destination::null);
ASSERT(m_op);
// initialize filter
m_op->init();
size_t maxSize = max_c(
m_input.format.u.raw_audio.buffer_size,
m_output.format.u.raw_audio.buffer_size);
// allocate a temporary buffer group
BBufferGroup* testGroup = new BBufferGroup(
maxSize, 1);
// fetch a buffer big enough for in-place processing
BBuffer* buffer = testGroup->RequestBuffer(
maxSize, -1);
ASSERT(buffer);
buffer->Header()->type = B_MEDIA_RAW_AUDIO;
buffer->Header()->size_used = m_input.format.u.raw_audio.buffer_size;
// run the test
bigtime_t preTest = system_time();
processBuffer(buffer, buffer);
bigtime_t elapsed = system_time()-preTest;
// clean up
buffer->Recycle();
delete testGroup;
// reset filter state
m_op->init();
return elapsed;// + 100000LL;
}
int main()
{
// app_server connection (no need to run it)
BApplication app("application/x-vnd-test");
BBufferGroup * group;
status_t s;
int32 count;
BBuffer *buffer;
/*
printf("using default constructor:\n");
group = new BBufferGroup();
s = group->InitCheck();
printf("InitCheck: status = %ld\n",s);
s = group->CountBuffers(&count);
printf("CountBuffers: count = %ld, status = %ld\n",count,s);
delete group;
*/
printf("\n");
printf("using size = 1234 constructor:\n");
group = new BBufferGroup(1234);
s = group->InitCheck();
printf("InitCheck: status = %ld\n",s);
s = group->CountBuffers(&count);
printf("CountBuffers: count = %ld, status = %ld\n",count,s);
s = group->GetBufferList(1,&buffer);
printf("GetBufferList: status = %ld\n",s);
printf("Buffer->Data: = %08x\n",(int)buffer->Data());
printf("Buffer->ID: = %d\n",(int)buffer->ID());
printf("Buffer->Size: = %ld\n",buffer->Size());
printf("Buffer->SizeAvailable: = %ld\n",buffer->SizeAvailable());
printf("Buffer->SizeUsed: = %ld\n",buffer->SizeUsed());
printf("\n");
media_buffer_id id = buffer->ID();
BBufferGroup * group2 = new BBufferGroup(1,&id);
printf("creating second group with a buffer from first group:\n");
s = group2->InitCheck();
printf("InitCheck: status = %ld\n",s);
s = group2->CountBuffers(&count);
printf("CountBuffers: count = %ld, status = %ld\n",count,s);
buffer = 0;
s = group2->GetBufferList(1,&buffer);
printf("GetBufferList: status = %ld\n",s);
printf("Buffer->Data: = %08x\n",(int)buffer->Data());
printf("Buffer->ID: = %d\n",(int)buffer->ID());
printf("Buffer->Size: = %ld\n",buffer->Size());
printf("Buffer->SizeAvailable: = %ld\n",buffer->SizeAvailable());
printf("Buffer->SizeUsed: = %ld\n",buffer->SizeUsed());
delete group;
delete group2;
printf("\n");
/*
printf("creating a BSmallBuffer:\n");
BSmallBuffer * sb = new BSmallBuffer;
printf("sb->Data: = %08x\n",(int)sb->Data());
printf("sb->ID: = %d\n",(int)sb->ID());
printf("sb->Size: = %ld\n",sb->Size());
printf("sb->SizeAvailable: = %ld\n",sb->SizeAvailable());
printf("sb->SizeUsed: = %ld\n",sb->SizeUsed());
printf("sb->SmallBufferSizeLimit: = %ld\n",sb->SmallBufferSizeLimit());
delete sb;
*/
return 0;
}
