X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Faudio1394.C;fp=cinelerra-5.1%2Fcinelerra%2Faudio1394.C;h=50ce2555e7b51a2cf1be4dc514e42d3234cc0eb4;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=0000000000000000000000000000000000000000;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/audio1394.C b/cinelerra-5.1/cinelerra/audio1394.C
new file mode 100644
index 00000000..50ce2555
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/audio1394.C
@@ -0,0 +1,232 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "audio1394.h"
+#include "playbackconfig.h"
+#include "device1394input.h"
+#include "device1394output.h"
+#include "iec61883input.h"
+#include "iec61883output.h"
+#include "preferences.h"
+#include "recordconfig.h"
+#include "videoconfig.h"
+#include "videodevice.h"
+
+#define SAMPLES_PER_FRAME 2048
+
+Audio1394::Audio1394(AudioDevice *device)
+ : AudioLowLevel(device)
+{
+	initialize();
+}
+
+
+Audio1394::~Audio1394()
+{
+	close_all();
+}
+
+void Audio1394::initialize()
+{
+	input_thread = 0;
+	output_thread = 0;
+	input_iec = 0;
+	output_iec = 0;
+}
+
+int Audio1394::open_input()
+{
+	int result = 0;
+	if(!input_thread && !input_iec)
+	{
+// Lock the channels for the DV format
+		device->in_channels = 2;
+		device->in_bits = 16;
+		bytes_per_sample = device->in_channels * device->in_bits / 8;
+
+
+		if(device->idriver == AUDIO_DV1394 ||
+			device->idriver == AUDIO_1394)
+		{
+			input_thread = new Device1394Input;
+			result = input_thread->open(device->in_config->firewire_path,
+				device->in_config->firewire_port,
+				device->in_config->firewire_channel,
+				30,
+				device->in_channels,
+				device->in_samplerate,
+				device->in_bits,
+				device->vconfig->w,
+				device->vconfig->h);
+		}
+		else
+		{
+			input_iec = new IEC61883Input;
+			result = input_iec->open(device->in_config->firewire_port,
+				device->in_config->firewire_channel,
+				30,
+				device->in_channels,
+				device->in_samplerate,
+				device->in_bits,
+				device->vconfig->w,
+				device->vconfig->h);
+		}
+
+
+
+
+		if(result)
+		{
+			delete input_thread;
+			input_thread = 0;
+			delete input_iec;
+			input_iec = 0;
+		}
+	}
+
+	return result;
+}
+
+int Audio1394::open_output()
+{
+	if(!output_thread && !output_iec)
+	{
+// Lock the channels for the DV format
+		device->out_channels = 2;
+		device->out_bits = 16;
+		bytes_per_sample = device->out_channels * device->out_bits / 8;
+
+
+		if(device->odriver == AUDIO_DV1394)
+		{
+			output_thread = new Device1394Output(device);
+			output_thread->open(device->out_config->dv1394_path,
+				device->out_config->dv1394_port,
+				device->out_config->dv1394_channel,
+				30,
+				device->out_channels,
+				device->out_bits,
+				device->out_samplerate,
+				device->out_config->dv1394_syt);
+		}
+		else
+		if(device->odriver == AUDIO_1394)
+		{
+			output_thread = new Device1394Output(device);
+			output_thread->open(device->out_config->firewire_path,
+				device->out_config->firewire_port,
+				device->out_config->firewire_channel,
+				30,
+				device->out_channels,
+				device->out_bits,
+				device->out_samplerate,
+				device->out_config->firewire_syt);
+		}
+		else
+		{
+			output_iec = new IEC61883Output(device);
+			output_iec->open(device->out_config->firewire_port,
+				device->out_config->firewire_channel,
+				30,
+				device->out_channels,
+				device->out_bits,
+				device->out_samplerate,
+				device->out_config->firewire_syt);
+		}
+	}
+	return 0;
+}
+
+int Audio1394::close_all()
+{
+	if(input_thread)
+	{
+		delete input_thread;
+	}
+
+	if(output_thread)
+	{
+		delete output_thread;
+	}
+	delete input_iec;
+	delete output_iec;
+
+	initialize();
+	return 0;
+}
+
+
+int Audio1394::read_buffer(char *buffer, int bytes)
+{
+	if(input_thread)
+	{
+		input_thread->read_audio(buffer, bytes / bytes_per_sample);
+	}
+	else
+	if(input_iec)
+	{
+		input_iec->read_audio(buffer, bytes / bytes_per_sample);
+	}
+
+	return 0;
+}
+
+int Audio1394::write_buffer(char *buffer, int bytes)
+{
+	if(output_thread)
+		output_thread->write_samples(buffer, bytes / bytes_per_sample);
+	else
+	if(output_iec)
+		output_iec->write_samples(buffer, bytes / bytes_per_sample);
+	return 0;
+}
+
+int64_t Audio1394::device_position()
+{
+	if(output_thread)
+		return output_thread->get_audio_position();
+	else
+	if(output_iec)
+		return output_iec->get_audio_position();
+	else
+		return 0;
+}
+
+
+int Audio1394::flush_device()
+{
+	if(output_thread)
+		output_thread->flush();
+	else
+	if(output_iec)
+		output_iec->flush();
+	return 0;
+}
+
+int Audio1394::interrupt_playback()
+{
+	if(output_thread)
+		output_thread->interrupt();
+	else
+	if(output_iec)
+		output_iec->interrupt();
+	return 0;
+}