Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / cinelerra / audiompeg.C

diff --git a/cinelerra-5.1/cinelerra/audiompeg.C b/cinelerra-5.1/cinelerra/audiompeg.C
new file mode 100644 (file)
index 0000000..1981da6
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/audiompeg.C
@@ -0,0 +1,141 @@
+
+/*
+ * 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 "audiompeg.h"
+#include "condition.h"
+#include "devicempeginput.h"
+
+
+
+
+AudioMPEG::AudioMPEG(AudioDevice *device)
+ : AudioLowLevel(device)
+{
+       audio_open = 0;
+       mpeg_input = 0;
+}
+
+AudioMPEG::~AudioMPEG()
+{
+       close_all();
+}
+
+
+int AudioMPEG::open_input()
+{
+       /* this is more like - try to open, since a broadcast signal may */
+       /*  take time to lock, or not even be there at all.  On success, */
+       /*  it may update the input config with the actual stream config. */
+       int ret = 1;
+       if( !mpeg_input )
+       {
+               mpeg_input = get_mpeg_input();
+               if( !mpeg_input ) return 1;
+       }
+       device->in_samplerate = device->in_channels = device->in_bits = 0;
+       if( !mpeg_input->src_stream() ) {
+               int samplerate = mpeg_input->audio_sample_rate();
+               int channels = mpeg_input->audio_channels();
+               int bits = mpeg_input->audio_sample_bits();
+               device->auto_update(channels, samplerate, bits);
+               audio_open = 1;
+               mpeg_input->src_unlock();
+               ret = 0;
+       }
+       return ret;
+}
+
+int AudioMPEG::close_all()
+{
+       audio_open = 0;
+       if( mpeg_input ) {
+               mpeg_input->put_mpeg_audio();
+               mpeg_input = 0;
+       }
+       return 0;
+}
+
+int AudioMPEG::write_buffer(char *buffer, int size)
+{
+       printf("AudioMPEG::write_position 10\n");
+       return 0;
+}
+
+int AudioMPEG::read_buffer(char *buffer, int size)
+{
+       if( !audio_open ) { open_input(); return -1; }
+       int result = mpeg_input->read_audio(buffer,size);
+//printf("AudioMPEG::read_buffer(%p,%d) = %d\n", buffer, size, result);
+       return result;
+}
+
+double AudioMPEG::device_timestamp()
+{
+       if( !audio_open || !mpeg_input ) return -1.;
+       return mpeg_input->audio_timestamp();
+}
+
+int AudioMPEG::start_toc(const char *path, const char *toc_path)
+{
+       int result = mpeg_input ? mpeg_input->start_toc(path, toc_path) : -1;
+       return result;
+}
+
+int AudioMPEG::start_record(int fd, int bsz)
+{
+       int result = mpeg_input ? mpeg_input->start_record(fd, bsz) : -1;
+       return result;
+}
+
+int AudioMPEG::stop_record()
+{
+       int result = mpeg_input ? mpeg_input->stop_record() : -1;
+       return result;
+}
+
+int AudioMPEG::total_audio_channels()
+{
+       int result = mpeg_input ? mpeg_input->total_audio_channels() : 0;
+       return result;
+}
+
+int64_t AudioMPEG::device_position()
+{
+       printf("AudioMPEG::device_position 10\n");
+       return 0;
+}
+
+int AudioMPEG::flush_device()
+{
+       printf("AudioMPEG::flush_device 10\n");
+       return 0;
+}
+
+int AudioMPEG::interrupt_playback()
+{
+       printf("AudioMPEG::interrupt_playback 10\n");
+       return 0;
+}
+
+
+
+
+