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uses different preferred media formats for input and output. 

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31946 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2009-07-29 22:17:37 +00:00
parent a4df31984d
commit 4b57427974
2 changed files with 33 additions and 17 deletions
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47
src/add-ons/media/media-add-ons/multi_audio/MultiAudioNode.cpp
View File

@ -123,19 +123,34 @@ MultiAudioNode::MultiAudioNode(BMediaAddOn* addon, const char* name,
AddNodeKind(B_PHYSICAL_OUTPUT);
AddNodeKind(B_PHYSICAL_INPUT);
// initialize our preferred format object
memset(&fPreferredFormat, 0, sizeof(fPreferredFormat)); // set everything to wildcard first
fPreferredFormat.type = B_MEDIA_RAW_AUDIO;
fPreferredFormat.u.raw_audio.format = MultiAudio::convert_to_media_format(fDevice->FormatInfo().output.format);
fPreferredFormat.u.raw_audio.valid_bits = MultiAudio::convert_to_valid_bits(fDevice->FormatInfo().output.format);
fPreferredFormat.u.raw_audio.channel_count = 2;
fPreferredFormat.u.raw_audio.frame_rate = MultiAudio::convert_to_sample_rate(fDevice->FormatInfo().output.rate); // measured in Hertz
fPreferredFormat.u.raw_audio.byte_order = B_MEDIA_HOST_ENDIAN;
// initialize our preferred format objects
memset(&fOutputPreferredFormat, 0, sizeof(fOutputPreferredFormat)); // set everything to wildcard first
fOutputPreferredFormat.type = B_MEDIA_RAW_AUDIO;
fOutputPreferredFormat.u.raw_audio.format = MultiAudio::convert_to_media_format(fDevice->FormatInfo().output.format);
fOutputPreferredFormat.u.raw_audio.valid_bits = MultiAudio::convert_to_valid_bits(fDevice->FormatInfo().output.format);
fOutputPreferredFormat.u.raw_audio.channel_count = 2;
fOutputPreferredFormat.u.raw_audio.frame_rate = MultiAudio::convert_to_sample_rate(fDevice->FormatInfo().output.rate); // measured in Hertz
fOutputPreferredFormat.u.raw_audio.byte_order = B_MEDIA_HOST_ENDIAN;
// we'll use the consumer's preferred buffer size, if any
fPreferredFormat.u.raw_audio.buffer_size = fDevice->BufferList().return_record_buffer_size
* (fPreferredFormat.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* fPreferredFormat.u.raw_audio.channel_count;
fOutputPreferredFormat.u.raw_audio.buffer_size = fDevice->BufferList().return_playback_buffer_size
* (fOutputPreferredFormat.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* fOutputPreferredFormat.u.raw_audio.channel_count;
// initialize our preferred format objects
memset(&fInputPreferredFormat, 0, sizeof(fInputPreferredFormat)); // set everything to wildcard first
fInputPreferredFormat.type = B_MEDIA_RAW_AUDIO;
fInputPreferredFormat.u.raw_audio.format = MultiAudio::convert_to_media_format(fDevice->FormatInfo().input.format);
fInputPreferredFormat.u.raw_audio.valid_bits = MultiAudio::convert_to_valid_bits(fDevice->FormatInfo().input.format);
fInputPreferredFormat.u.raw_audio.channel_count = 2;
fInputPreferredFormat.u.raw_audio.frame_rate = MultiAudio::convert_to_sample_rate(fDevice->FormatInfo().input.rate); // measured in Hertz
fInputPreferredFormat.u.raw_audio.byte_order = B_MEDIA_HOST_ENDIAN;
// we'll use the consumer's preferred buffer size, if any
fInputPreferredFormat.u.raw_audio.buffer_size = fDevice->BufferList().return_record_buffer_size
* (fInputPreferredFormat.u.raw_audio.format & media_raw_audio_format::B_AUDIO_SIZE_MASK)
* fInputPreferredFormat.u.raw_audio.channel_count;
if (config) {
fConfig = *config;
@ -234,13 +249,13 @@ MultiAudioNode::NodeRegistered()
media_input* input = new media_input;
input->format = fPreferredFormat;
input->format = fOutputPreferredFormat;
input->destination.port = ControlPort();
input->destination.id = fInputs.CountItems();
input->node = Node();
sprintf(input->name, "output %ld", input->destination.id);
currentInput = new node_input(*input, fPreferredFormat);
currentInput = new node_input(*input, fOutputPreferredFormat);
currentInput->fPreferredFormat.u.raw_audio.channel_count = 1;
currentInput->fInput.format = currentInput->fPreferredFormat;
@ -279,14 +294,14 @@ MultiAudioNode::NodeRegistered()
media_output *output = new media_output;
output->format = fPreferredFormat;
output->format = fInputPreferredFormat;
output->destination = media_destination::null;
output->source.port = ControlPort();
output->source.id = fOutputs.CountItems();
output->node = Node();
sprintf(output->name, "input %ld", output->source.id);
currentOutput = new node_output(*output, fPreferredFormat);
currentOutput = new node_output(*output, fInputPreferredFormat);
currentOutput->fPreferredFormat.u.raw_audio.channel_count = 1;
currentOutput->fOutput.format = currentOutput->fPreferredFormat;
currentOutput->fChannelId = fDevice->Description().channels[i].channel_id;
@ -606,7 +621,7 @@ MultiAudioNode::FormatSuggestionRequested(media_type type, int32 /*quality*/,
}
// this is the format we'll be returning (our preferred format)
*format = fPreferredFormat;
*format = fInputPreferredFormat;
// a wildcard type is okay; we can specialize it
if (type == B_MEDIA_UNKNOWN_TYPE) type = B_MEDIA_RAW_AUDIO;

3
src/add-ons/media/media-add-ons/multi_audio/MultiAudioNode.h
View File

@ -199,7 +199,8 @@ private:
bigtime_t fLatency;
BList fOutputs;
media_format fPreferredFormat;
media_format fOutputPreferredFormat;
media_format fInputPreferredFormat;
bigtime_t fInternalLatency;
// this is computed from the real (negotiated) chunk size and bit rate,