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Diffstat (limited to 'gr-audio-windows/src/audio_windows_sink.cc')
| -rw-r--r-- | gr-audio-windows/src/audio_windows_sink.cc | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/gr-audio-windows/src/audio_windows_sink.cc b/gr-audio-windows/src/audio_windows_sink.cc deleted file mode 100644 index a47871954..000000000 --- a/gr-audio-windows/src/audio_windows_sink.cc +++ /dev/null @@ -1,323 +0,0 @@ -/* -*- c++ -*- */ -/* -* Copyright 2004,2010 Free Software Foundation, Inc. -* -* This file is part of GNU Radio -* -* GNU Radio 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 3, or (at your option) -* any later version. -* -* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to -* the Free Software Foundation, Inc., 51 Franklin Street, -* Boston, MA 02110-1301, USA. -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <audio_windows_sink.h> -#include <gr_io_signature.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <iostream> -#include <stdexcept> -#include <string> -#include <sstream> - -static const double CHUNK_TIME = 0.1; //0.001; // 100 ms - -// FIXME these should query some kind of user preference - -static std::string -default_device_name () -{ - return "WAVE_MAPPER"; -} - -audio_windows_sink::audio_windows_sink (int sampling_freq, const std::string device_name) - : gr_sync_block ("audio_windows_sink", - gr_make_io_signature (1, 2, sizeof (float)), - gr_make_io_signature (0, 0, 0)), - d_sampling_freq (sampling_freq), - d_device_name (device_name.empty ()? default_device_name () : device_name), - d_fd (-1), d_buffer (0), d_chunk_size (0) -{ - d_wave_write_event = CreateEvent (NULL, FALSE, FALSE, NULL); - if (open_waveout_device () < 0) - { - //fprintf (stderr, "audio_windows_sink:open_waveout_device() failed\n"); - perror ("audio_windows_sink:open_waveout_device( ) failed\n"); - throw - std::runtime_error ("audio_windows_sink:open_waveout_device() failed"); - } - - d_chunk_size = (int) (d_sampling_freq * CHUNK_TIME); - set_output_multiple (d_chunk_size); - - d_buffer = new short[d_chunk_size * 2]; - -} - -audio_windows_sink::~audio_windows_sink () -{ - /* Free the callback Event */ - CloseHandle (d_wave_write_event); - waveOutClose (d_h_waveout); - delete[]d_buffer; -} - -audio_windows_sink_sptr -audio_windows_make_sink (int sampling_freq, const std::string dev) -{ - return gnuradio::get_initial_sptr (new audio_windows_sink (sampling_freq, dev)); -} - - -int -audio_windows_sink::work (int noutput_items, - gr_vector_const_void_star & input_items, - gr_vector_void_star & output_items) -{ - const float *f0, *f1; - bool playtestsound = false; - if (playtestsound) - { - // dummy - - f0 = (const float *) input_items[0]; - - for (int i = 0; i < noutput_items; i += d_chunk_size) - { - for (int j = 0; j < d_chunk_size; j++) - { - d_buffer[2 * j + 0] = (short) (sin (2.0 * 3.1415926535897932384626 * (float) j * 1000.0 / (float) d_sampling_freq) * 8192 + 0); //+32767 - d_buffer[2 * j + 1] = d_buffer[2 * j + 0]; - } - f0 += d_chunk_size; - if (write_waveout - ((HPSTR) d_buffer, 2 * d_chunk_size * sizeof (short)) < 0) - { - fprintf (stderr, "audio_windows_sink: write failed\n"); - perror ("audio_windows_sink: write failed"); - } - } - // break; - } - else - { - switch (input_items.size ()) - { - - case 1: // mono input - - f0 = (const float *) input_items[0]; - - for (int i = 0; i < noutput_items; i += d_chunk_size) - { - for (int j = 0; j < d_chunk_size; j++) - { - d_buffer[2 * j + 0] = (short) (f0[j] * 32767); - d_buffer[2 * j + 1] = (short) (f0[j] * 32767); - } - f0 += d_chunk_size; - if (write_waveout - ((HPSTR) d_buffer, 2 * d_chunk_size * sizeof (short)) < 0) - { - //fprintf (stderr, "audio_windows_sink: write failed\n"); - perror ("audio_windows_sink: write failed"); - } - } - break; - - case 2: // stereo input - - f0 = (const float *) input_items[0]; - f1 = (const float *) input_items[1]; - - for (int i = 0; i < noutput_items; i += d_chunk_size) - { - for (int j = 0; j < d_chunk_size; j++) - { - d_buffer[2 * j + 0] = (short) (f0[j] * 32767); - d_buffer[2 * j + 1] = (short) (f1[j] * 32767); - } - f0 += d_chunk_size; - f1 += d_chunk_size; - if (write_waveout - ((HPSTR) d_buffer, 2 * d_chunk_size * sizeof (short)) < 0) - { - //fprintf (stderr, "audio_windows_sink: write failed\n"); - perror ("audio_windows_sink: write failed"); - } - } - break; - } - } - return noutput_items; -} - -int -audio_windows_sink::string_to_int (const std::string & s) -{ - int i; - std::istringstream (s) >> i; - return i; -} //ToInt() - -int -audio_windows_sink::open_waveout_device (void) -{ - - UINT /*UINT_PTR */ u_device_id; - /** Identifier of the waveform-audio output device to open. It can be either a device identifier or a handle of an open waveform-audio input device. You can use the following flag instead of a device identifier. - * - * Value Meaning - * WAVE_MAPPER The function selects a waveform-audio output device capable of playing the given format. - */ - if (d_device_name.empty () || default_device_name () == d_device_name) - u_device_id = WAVE_MAPPER; - else - u_device_id = (UINT) string_to_int (d_device_name); - // Open a waveform device for output using event callback. - - unsigned long result; - //HWAVEOUT outHandle; - WAVEFORMATEX wave_format; - - /* Initialize the WAVEFORMATEX for 16-bit, 44KHz, stereo */ - wave_format.wFormatTag = WAVE_FORMAT_PCM; - wave_format.nChannels = 2; - wave_format.nSamplesPerSec = d_sampling_freq; //44100; - wave_format.wBitsPerSample = 16; - wave_format.nBlockAlign = - wave_format.nChannels * (wave_format.wBitsPerSample / 8); - wave_format.nAvgBytesPerSec = - wave_format.nSamplesPerSec * wave_format.nBlockAlign; - wave_format.cbSize = 0; - - /* Open the (preferred) Digital Audio Out device. */ - result = waveOutOpen (&d_h_waveout, WAVE_MAPPER, &wave_format, (DWORD_PTR) d_wave_write_event, 0, CALLBACK_EVENT | WAVE_ALLOWSYNC); //|WAVE_FORMAT_DIRECT | CALLBACK_EVENT| WAVE_ALLOWSYNC - if (result) - { - fprintf (stderr, - "audio_windows_sink: Failed to open waveform output device.\n"); - perror ("audio_windows_sink: Failed to open waveform output device."); - //LocalUnlock(hFormat); - //LocalFree(hFormat); - //mmioClose(hmmio, 0); - return -1; - } - - // - // Do not Swallow the "open" event. - // - //WaitForSingleObject(d_wave_write_event, INFINITE); - - // Allocate and lock memory for the header. - - d_h_wave_hdr = GlobalAlloc (GMEM_MOVEABLE | GMEM_SHARE, - (DWORD) sizeof (WAVEHDR)); - if (d_h_wave_hdr == NULL) - { - //GlobalUnlock(hData); - //GlobalFree(hData); - //fprintf (stderr, "audio_windows_sink: Not enough memory for header.\n"); - perror ("audio_windows_sink: Not enough memory for header."); - return -1; - } - - d_lp_wave_hdr = (LPWAVEHDR) GlobalLock (d_h_wave_hdr); - if (d_lp_wave_hdr == NULL) - { - //GlobalUnlock(hData); - //GlobalFree(hData); - //fprintf (stderr, "audio_windows_sink: Failed to lock memory for header.\n"); - perror ("audio_windows_sink: Failed to lock memory for header."); - return -1; - } - //d_lp_wave_hdr->dwFlags = WHDR_DONE; - return 0; -} - -int -audio_windows_sink::write_waveout (HPSTR lp_data, DWORD dw_data_size) -{ - UINT w_result; - int teller = 100; - // After allocation, set up and prepare header. - /*while ((d_lp_wave_hdr->dwFlags & WHDR_DONE)==0 && teller>0) - { - teller--; - Sleep(1); - } */ - // Wait until previous wave write completes (first event is the open event). - WaitForSingleObject (d_wave_write_event, 100); //INFINITE - d_lp_wave_hdr->lpData = lp_data; - d_lp_wave_hdr->dwBufferLength = dw_data_size; - d_lp_wave_hdr->dwFlags = 0L; - /* Clear the WHDR_DONE bit (which the driver set last time that - this WAVEHDR was sent via waveOutWrite and was played). Some - drivers need this to be cleared */ - //d_lp_wave_hdr->dwFlags &= ~WHDR_DONE; - - d_lp_wave_hdr->dwLoops = 0L; - w_result = - waveOutPrepareHeader (d_h_waveout, d_lp_wave_hdr, sizeof (WAVEHDR)); - if (w_result != 0) - { - //GlobalUnlock( hData); - //GlobalFree(hData); - //fprintf (stderr, "audio_windows_sink: Failed to waveOutPrepareHeader. error %i\n",w_result); - perror ("audio_windows_sink: Failed to waveOutPrepareHeader"); - } - // Now the data block can be sent to the output device. The - // waveOutWrite function returns immediately and waveform - // data is sent to the output device in the background. - //while (! readyforplayback) Sleep(1); - //readyforplayback=false; - // - // - - w_result = waveOutWrite (d_h_waveout, d_lp_wave_hdr, sizeof (WAVEHDR)); - if (w_result != 0) - { - //GlobalUnlock( hData); - //GlobalFree(hData); - //fprintf (stderr, "audio_windows_sink: Failed to write block to device.error %i\n",w_result); - perror ("audio_windows_sink: Failed to write block to device"); - switch (w_result) - { - case MMSYSERR_INVALHANDLE: - fprintf (stderr, "Specified device handle is invalid. \n"); - break; - case MMSYSERR_NODRIVER: - fprintf (stderr, " No device driver is present. \n"); - break; - case MMSYSERR_NOMEM: - fprintf (stderr, " Unable to allocate or lock memory. \n"); - break; - case WAVERR_UNPREPARED: - fprintf (stderr, - " The data block pointed to by the pwh parameter hasn't been prepared. \n"); - break; - default: - fprintf (stderr, "Unknown error %i\n", w_result); - } - waveOutUnprepareHeader (d_h_waveout, d_lp_wave_hdr, sizeof (WAVEHDR)); - return -1; - } - // WaitForSingleObject(d_wave_write_event, INFINITE); - return 0; -} |