i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

internal latency = 1 buffer

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5033 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval
2003-10-14 16:25:28 +00:00
parent 2b3e9b28d6
commit e75df357b9
1 changed files with 25 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/media/media-add-ons/multi_audio/MultiAudioNode.cpp
+25 -54
View File
@@ -1,7 +1,7 @@
/*
* multiaudio replacement media addon for BeOS
*
* Copyright (c) 2002, Jerome Duval ([email protected])
* Copyright (c) 2002, 2003 Jerome Duval ([email protected])
*
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification,
@@ -207,8 +207,8 @@ void MultiAudioNode::NodeRegistered(void)
node_input *currentInput = NULL;
int32 currentId = 0;
for (int32 i = 0; i < fDevice->MD.output_channel_count; i++)
{
for (int32 i = 0; i < fDevice->MD.output_channel_count; i++) {
if( (currentInput == NULL)
|| (fDevice->MD.channels[i].designations & B_CHANNEL_MONO_BUS)
|| (fDevice->MD.channels[currentId].designations & B_CHANNEL_STEREO_BUS
@@ -253,8 +253,8 @@ void MultiAudioNode::NodeRegistered(void)
currentId = 0;
for (int32 i = fDevice->MD.output_channel_count;
i < (fDevice->MD.output_channel_count + fDevice->MD.input_channel_count); i++)
{
i < (fDevice->MD.output_channel_count + fDevice->MD.input_channel_count); i++) {
if( (currentOutput == NULL)
|| (fDevice->MD.channels[i].designations & B_CHANNEL_MONO_BUS)
|| (fDevice->MD.channels[currentId].designations & B_CHANNEL_STEREO_BUS
@@ -299,6 +299,8 @@ void MultiAudioNode::NodeRegistered(void)
SetParameterWeb(fWeb);
/* apply configuration */
bigtime_t start = system_time();
int32 index = 0;
int32 parameterID = 0;
const void *data;
@@ -308,6 +310,8 @@ void MultiAudioNode::NodeRegistered(void)
SetParameterValue(parameterID, TimeSource()->Now(), data, size);
index++;
}
PRINT(("apply configuration in : %ld\n", system_time() - start));
}
status_t MultiAudioNode::RequestCompleted(const media_request_info &info)
@@ -510,21 +514,12 @@ status_t MultiAudioNode::Connected(
return B_MEDIA_BAD_DESTINATION;
}
// compute the latency or just guess
// use one buffer length latency
/*fInternalLatency = with_format.u.raw_audio.buffer_size * 10000 / 2
fInternalLatency = with_format.u.raw_audio.buffer_size * 10000 / 2
/ ( (with_format.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* with_format.u.raw_audio.channel_count)
/ ((int32)(with_format.u.raw_audio.frame_rate / 100));*/
/*char* buffer1 = (char*)malloc(with_format.u.raw_audio.buffer_size);
char* buffer2 = (char*)malloc(with_format.u.raw_audio.buffer_size);
bigtime_t latency_start = TimeSource()->RealTime();
memcpy(buffer2, buffer1, with_format.u.raw_audio.buffer_size);
bigtime_t latency_end = TimeSource()->RealTime();
fInternalLatency = latency_end - latency_start;
*/
fInternalLatency = 50LL;
/ ((int32)(with_format.u.raw_audio.frame_rate / 100));
PRINT((" internal latency = %lld\n",fInternalLatency));
SetEventLatency(fInternalLatency);
@@ -818,24 +813,24 @@ MultiAudioNode::Connect(status_t error, const media_source& source, const media_
channel->fOutput.format = format;
strncpy(io_name, channel->fOutput.name, B_MEDIA_NAME_LENGTH);
// reset our buffer duration, etc. to avoid later calculations
bigtime_t duration = channel->fOutput.format.u.raw_audio.buffer_size * 10000
/ ( (channel->fOutput.format.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* channel->fOutput.format.u.raw_audio.channel_count)
/ ((int32)(channel->fOutput.format.u.raw_audio.frame_rate / 100));
SetBufferDuration(duration);
// Now that we're connected, we can determine our downstream latency.
// Do so, then make sure we get our events early enough.
media_node_id id;
FindLatencyFor(channel->fOutput.destination, &fLatency, &id);
PRINT(("\tdownstream latency = %Ld\n", fLatency));
fInternalLatency = 50LL;
fInternalLatency = BufferDuration();
PRINT(("\tbuffer-filling took %Ld usec on this machine\n", fInternalLatency));
//SetEventLatency(fLatency + fInternalLatency);
// reset our buffer duration, etc. to avoid later calculations
bigtime_t duration = channel->fOutput.format.u.raw_audio.buffer_size * 10000
/ ( (channel->fOutput.format.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* channel->fOutput.format.u.raw_audio.channel_count)
/ ((int32)(channel->fOutput.format.u.raw_audio.frame_rate / 100));
//bigtime_t duration = bigtime_t(1000000) * samplesPerBuffer / bigtime_t(fOutput.format.u.raw_audio.frame_rate);
SetBufferDuration(duration);
// Set up the buffer group for our connection, as long as nobody handed us a
// buffer group (via SetBufferGroup()) prior to this. That can happen, for example,
// if the consumer calls SetOutputBuffersFor() on us from within its Connected()
@@ -1011,11 +1006,6 @@ status_t MultiAudioNode::HandleBuffer(
return B_MEDIA_BAD_DESTINATION;
}
/*if (buffer->Header()->destination != input.destination.id) {
fprintf(stderr,"<- B_MEDIA_BAD_DESTINATION\n");
return B_MEDIA_BAD_DESTINATION;
}*/
media_header* hdr = buffer->Header();
bigtime_t now = TimeSource()->Now();
bigtime_t perf_time = hdr->start_time;
@@ -1360,7 +1350,8 @@ MultiAudioNode::MakeParameterWeb()
}
void
MultiAudioNode::ProcessGroup(BParameterGroup *group, int32 index, int32 &nbParameters) {
MultiAudioNode::ProcessGroup(BParameterGroup *group, int32 index, int32 &nbParameters)
{
CALLED();
multi_mix_control *parent = &fDevice->MMCI.controls[index];
multi_mix_control *MMC = fDevice->MMCI.controls;
@@ -1417,7 +1408,8 @@ MultiAudioNode::ProcessGroup(BParameterGroup *group, int32 index, int32 &nbParam
}
void
MultiAudioNode::ProcessMux(BDiscreteParameter *parameter, int32 index) {
MultiAudioNode::ProcessMux(BDiscreteParameter *parameter, int32 index)
{
CALLED();
multi_mix_control *parent = &fDevice->MMCI.controls[index];
multi_mix_control *MMC = fDevice->MMCI.controls;
@@ -1444,27 +1436,6 @@ MultiAudioNode::ProcessMux(BDiscreteParameter *parameter, int32 index) {
// MultiAudioNode specific functions
// -------------------------------------------------------- //
/*void
MultiAudioNode::WriteBuffer( BBuffer *buffer, node_input &input )
{*/
//CALLED();
/*
//wait for free buffer
acquire_sem( fBuffer_free );
//PRINT(("MultiAudioNode::WriteBuffer: buffer free (fBufferCycle:%li)\n", fBufferCycle));
//prepare buffer
memcpy( fDevice->fPlay[input.fBufferCycle][input.fChannelId], buffer->Data(), buffer->SizeUsed() );
//PRINT(("MultiAudioNode::WriteBuffer: output : %p\n", fPlay[fBufferCycle][0]));
//PRINT(("MultiAudioNode::WriteBuffer: buffer prepared\n")); */
/*if(input.fBuffer != NULL) {
PRINT(("MultiAudioNode::WriteBuffer recycling channelId : %i\n", input.fChannelId));
//input.fBuffer->Recycle();
} else
input.fBuffer = buffer;
}*/
int32
MultiAudioNode::RunThread()
{