diff options
Diffstat (limited to 'lib/libsamplerate/libsamplerate-0.2.2/examples')
5 files changed, 0 insertions, 1661 deletions
diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/CMakeLists.txt b/lib/libsamplerate/libsamplerate-0.2.2/examples/CMakeLists.txt deleted file mode 100755 index 49d258c8..00000000 --- a/lib/libsamplerate/libsamplerate-0.2.2/examples/CMakeLists.txt +++ /dev/null @@ -1,31 +0,0 @@ -find_package(ALSA) -set(HAVE_ALSA ${ALSA_FOUND} PARENT_SCOPE) -# ALSA::ALSA target is exported since CMake >= 3.12, create it for -# old CMake versions -if(ALSA_FOUND) - if(NOT TARGET ALSA::ALSA) - add_library(ALSA::ALSA UNKNOWN IMPORTED) - set_target_properties(ALSA::ALSA PROPERTIES - INTERFACE_INCLUDE_DIRECTORIES "${ALSA_INCLUDE_DIRS}" - IMPORTED_LOCATION "${ALSA_LIBRARIES}") - endif() -endif() - -add_executable(timewarp-file timewarp-file.c) -target_link_libraries(timewarp-file - PRIVATE - samplerate - $<$<BOOL:${SndFile_FOUND}>:${SNDFILE_TARGET}>) - -add_executable(varispeed-play varispeed-play.c audio_out.c audio_out.h) -target_link_libraries(varispeed-play - PRIVATE - samplerate - $<$<BOOL:${SndFile_FOUND}>:${SNDFILE_TARGET}>) -if(WIN32) - target_link_libraries(varispeed-play PRIVATE winmm) -elseif(APPLE) - target_link_libraries(varispeed-play PRIVATE "-framework CoreAudio") -elseif(ALSA_FOUND) - target_link_libraries(varispeed-play PRIVATE ALSA::ALSA) -endif() diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.c b/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.c deleted file mode 100755 index e7c28cc5..00000000 --- a/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.c +++ /dev/null @@ -1,1125 +0,0 @@ -/* -** Copyright (c) 1999-2016, Erik de Castro Lopo <erikd@mega-nerd.com> -** All rights reserved. -** -** This code is released under 2-clause BSD license. Please see the -** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifdef _WIN32 -#ifndef WIN32_LEAN_AN_MEAN -#define WIN32_LEAN_AN_MEAN -#endif -#include <windows.h> -#include <mmsystem.h> -#endif - -#include "audio_out.h" - -#if (HAVE_SNDFILE) - -#include <math.h> - -#include <sndfile.h> - -#define BUFFER_LEN (2048) - -#define MAKE_MAGIC(a,b,c,d,e,f,g,h) \ - ((a) + ((b) << 1) + ((c) << 2) + ((d) << 3) + ((e) << 4) + ((f) << 5) + ((g) << 6) + ((h) << 7)) - -/*------------------------------------------------------------------------------ -** Linux (ALSA and OSS) functions for playing a sound. -*/ - -#if defined (__linux__) - -#if HAVE_ALSA - -#define ALSA_PCM_NEW_HW_PARAMS_API -#define ALSA_PCM_NEW_SW_PARAMS_API - -#include <alsa/asoundlib.h> -#include <sys/time.h> - -#define ALSA_MAGIC MAKE_MAGIC ('L', 'n', 'x', '-', 'A', 'L', 'S', 'A') - -typedef struct AUDIO_OUT -{ int magic ; - snd_pcm_t * dev ; - int channels ; -} ALSA_AUDIO_OUT ; - -static int alsa_write_float (snd_pcm_t *alsa_dev, float *data, int frames, int channels) ; - -static AUDIO_OUT * -alsa_open (int channels, unsigned samplerate) -{ ALSA_AUDIO_OUT *alsa_out ; - const char * device = "default" ; - snd_pcm_hw_params_t *hw_params ; - snd_pcm_uframes_t buffer_size ; - snd_pcm_uframes_t alsa_period_size, alsa_buffer_frames ; - snd_pcm_sw_params_t *sw_params ; - - int err ; - - alsa_period_size = 1024 ; - alsa_buffer_frames = 4 * alsa_period_size ; - - if ((alsa_out = calloc (1, sizeof (ALSA_AUDIO_OUT))) == NULL) - { perror ("alsa_open : malloc ") ; - exit (1) ; - } ; - - alsa_out->magic = ALSA_MAGIC ; - alsa_out->channels = channels ; - - if ((err = snd_pcm_open (&alsa_out->dev, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) - { fprintf (stderr, "cannot open audio device \"%s\" (%s)\n", device, snd_strerror (err)) ; - goto catch_error ; - } ; - - snd_pcm_nonblock (alsa_out->dev, 0) ; - - if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) - { fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_any (alsa_out->dev, hw_params)) < 0) - { fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_access (alsa_out->dev, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) - { fprintf (stderr, "cannot set access type (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_format (alsa_out->dev, hw_params, SND_PCM_FORMAT_FLOAT)) < 0) - { fprintf (stderr, "cannot set sample format (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_rate_near (alsa_out->dev, hw_params, &samplerate, 0)) < 0) - { fprintf (stderr, "cannot set sample rate (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_channels (alsa_out->dev, hw_params, channels)) < 0) - { fprintf (stderr, "cannot set channel count (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_buffer_size_near (alsa_out->dev, hw_params, &alsa_buffer_frames)) < 0) - { fprintf (stderr, "cannot set buffer size (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params_set_period_size_near (alsa_out->dev, hw_params, &alsa_period_size, 0)) < 0) - { fprintf (stderr, "cannot set period size (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_hw_params (alsa_out->dev, hw_params)) < 0) - { fprintf (stderr, "cannot set parameters (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - /* extra check: if we have only one period, this code won't work */ - snd_pcm_hw_params_get_period_size (hw_params, &alsa_period_size, 0) ; - snd_pcm_hw_params_get_buffer_size (hw_params, &buffer_size) ; - if (alsa_period_size == buffer_size) - { fprintf (stderr, "Can't use period equal to buffer size (%lu == %lu)", alsa_period_size, buffer_size) ; - goto catch_error ; - } ; - - snd_pcm_hw_params_free (hw_params) ; - - if ((err = snd_pcm_sw_params_malloc (&sw_params)) != 0) - { fprintf (stderr, "%s: snd_pcm_sw_params_malloc: %s", __func__, snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_sw_params_current (alsa_out->dev, sw_params)) != 0) - { fprintf (stderr, "%s: snd_pcm_sw_params_current: %s", __func__, snd_strerror (err)) ; - goto catch_error ; - } ; - - /* note: set start threshold to delay start until the ring buffer is full */ - snd_pcm_sw_params_current (alsa_out->dev, sw_params) ; - - if ((err = snd_pcm_sw_params_set_start_threshold (alsa_out->dev, sw_params, buffer_size)) < 0) - { fprintf (stderr, "cannot set start threshold (%s)\n", snd_strerror (err)) ; - goto catch_error ; - } ; - - if ((err = snd_pcm_sw_params (alsa_out->dev, sw_params)) != 0) - { fprintf (stderr, "%s: snd_pcm_sw_params: %s", __func__, snd_strerror (err)) ; - goto catch_error ; - } ; - - snd_pcm_sw_params_free (sw_params) ; - - snd_pcm_reset (alsa_out->dev) ; - -catch_error : - - if (err < 0 && alsa_out->dev != NULL) - { snd_pcm_close (alsa_out->dev) ; - return NULL ; - } ; - - return (AUDIO_OUT *) alsa_out ; -} /* alsa_open */ - -static void -alsa_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ static float buffer [BUFFER_LEN] ; - ALSA_AUDIO_OUT *alsa_out ; - int read_frames ; - - if ((alsa_out = (ALSA_AUDIO_OUT*) audio_out) == NULL) - { printf ("alsa_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (alsa_out->magic != ALSA_MAGIC) - { printf ("alsa_close : Bad magic number.\n") ; - return ; - } ; - - while ((read_frames = callback (callback_data, buffer, BUFFER_LEN / alsa_out->channels))) - alsa_write_float (alsa_out->dev, buffer, read_frames, alsa_out->channels) ; - - return ; -} /* alsa_play */ - -static int -alsa_write_float (snd_pcm_t *alsa_dev, float *data, int frames, int channels) -{ static int epipe_count = 0 ; - - int total = 0 ; - int retval ; - - if (epipe_count > 0) - epipe_count -- ; - - while (total < frames) - { retval = snd_pcm_writei (alsa_dev, data + total * channels, frames - total) ; - - if (retval >= 0) - { total += retval ; - if (total == frames) - return total ; - - continue ; - } ; - - switch (retval) - { case -EAGAIN : - puts ("alsa_write_float: EAGAIN") ; - continue ; - break ; - - case -EPIPE : - if (epipe_count > 0) - { printf ("alsa_write_float: EPIPE %d\n", epipe_count) ; - if (epipe_count > 140) - return retval ; - } ; - epipe_count += 100 ; - -#if 0 - if (0) - { snd_pcm_status_t *status ; - - snd_pcm_status_alloca (&status) ; - if ((retval = snd_pcm_status (alsa_dev, status)) < 0) - fprintf (stderr, "alsa_out: xrun. can't determine length\n") ; - else if (snd_pcm_status_get_state (status) == SND_PCM_STATE_XRUN) - { struct timeval now, diff, tstamp ; - - gettimeofday (&now, 0) ; - snd_pcm_status_get_trigger_tstamp (status, &tstamp) ; - timersub (&now, &tstamp, &diff) ; - - fprintf (stderr, "alsa_write_float xrun: of at least %.3f msecs. resetting stream\n", - diff.tv_sec * 1000 + diff.tv_usec / 1000.0) ; - } - else - fprintf (stderr, "alsa_write_float: xrun. can't determine length\n") ; - } ; -#endif - - snd_pcm_prepare (alsa_dev) ; - break ; - - case -EBADFD : - fprintf (stderr, "alsa_write_float: Bad PCM state.n") ; - return 0 ; - break ; - - case -ESTRPIPE : - fprintf (stderr, "alsa_write_float: Suspend event.n") ; - return 0 ; - break ; - - case -EIO : - puts ("alsa_write_float: EIO") ; - return 0 ; - - default : - fprintf (stderr, "alsa_write_float: retval = %d\n", retval) ; - return 0 ; - break ; - } ; /* switch */ - } ; /* while */ - - return total ; -} /* alsa_write_float */ - -static void -alsa_close (AUDIO_OUT *audio_out) -{ ALSA_AUDIO_OUT *alsa_out ; - - if ((alsa_out = (ALSA_AUDIO_OUT*) audio_out) == NULL) - { printf ("alsa_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (alsa_out->magic != ALSA_MAGIC) - { printf ("alsa_close : Bad magic number.\n") ; - return ; - } ; - - memset (alsa_out, 0, sizeof (ALSA_AUDIO_OUT)) ; - - free (alsa_out) ; - - return ; -} /* alsa_close */ - -#endif /* HAVE_ALSA */ - -#include <fcntl.h> -#include <sys/ioctl.h> -#include <sys/soundcard.h> - -#define OSS_MAGIC MAKE_MAGIC ('L', 'i', 'n', 'u', 'x', 'O', 'S', 'S') - -typedef struct -{ int magic ; - int fd ; - int channels ; -} OSS_AUDIO_OUT ; - -static AUDIO_OUT *opensoundsys_open (int channels, int samplerate) ; -static void opensoundsys_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ; -static void opensoundsys_close (AUDIO_OUT *audio_out) ; - - -static AUDIO_OUT * -opensoundsys_open (int channels, int samplerate) -{ OSS_AUDIO_OUT *opensoundsys_out ; - int stereo, fmt, error ; - - if ((opensoundsys_out = calloc (1, sizeof (OSS_AUDIO_OUT))) == NULL) - { perror ("opensoundsys_open : malloc ") ; - exit (1) ; - } ; - - opensoundsys_out->magic = OSS_MAGIC ; - opensoundsys_out->channels = channels ; - - if ((opensoundsys_out->fd = open ("/dev/dsp", O_WRONLY, 0)) == -1) - { perror ("opensoundsys_open : open ") ; - exit (1) ; - } ; - - stereo = 0 ; - if (ioctl (opensoundsys_out->fd, SNDCTL_DSP_STEREO, &stereo) == -1) - { /* Fatal error */ - perror ("opensoundsys_open : stereo ") ; - exit (1) ; - } ; - - if (ioctl (opensoundsys_out->fd, SNDCTL_DSP_RESET, 0)) - { perror ("opensoundsys_open : reset ") ; - exit (1) ; - } ; - - fmt = CPU_IS_BIG_ENDIAN ? AFMT_S16_BE : AFMT_S16_LE ; - if (ioctl (opensoundsys_out->fd, SNDCTL_DSP_SETFMT, &fmt) != 0) - { perror ("opensoundsys_open_dsp_device : set format ") ; - exit (1) ; - } ; - - if ((error = ioctl (opensoundsys_out->fd, SNDCTL_DSP_CHANNELS, &channels)) != 0) - { perror ("opensoundsys_open : channels ") ; - exit (1) ; - } ; - - if ((error = ioctl (opensoundsys_out->fd, SNDCTL_DSP_SPEED, &samplerate)) != 0) - { perror ("opensoundsys_open : sample rate ") ; - exit (1) ; - } ; - - if ((error = ioctl (opensoundsys_out->fd, SNDCTL_DSP_SYNC, 0)) != 0) - { perror ("opensoundsys_open : sync ") ; - exit (1) ; - } ; - - return (AUDIO_OUT*) opensoundsys_out ; -} /* opensoundsys_open */ - -static void -opensoundsys_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ OSS_AUDIO_OUT *opensoundsys_out ; - static float float_buffer [BUFFER_LEN] ; - static short buffer [BUFFER_LEN] ; - int k, read_frames ; - - if ((opensoundsys_out = (OSS_AUDIO_OUT*) audio_out) == NULL) - { printf ("opensoundsys_play : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (opensoundsys_out->magic != OSS_MAGIC) - { printf ("opensoundsys_play : Bad magic number.\n") ; - return ; - } ; - - while ((read_frames = callback (callback_data, float_buffer, BUFFER_LEN / opensoundsys_out->channels))) - { for (k = 0 ; k < read_frames * opensoundsys_out->channels ; k++) - buffer [k] = lrint (32767.0 * float_buffer [k]) ; - if (write (opensoundsys_out->fd, buffer, read_frames * opensoundsys_out->channels * sizeof (short))) {} - } ; - - return ; -} /* opensoundsys_play */ - -static void -opensoundsys_close (AUDIO_OUT *audio_out) -{ OSS_AUDIO_OUT *opensoundsys_out ; - - if ((opensoundsys_out = (OSS_AUDIO_OUT*) audio_out) == NULL) - { printf ("opensoundsys_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (opensoundsys_out->magic != OSS_MAGIC) - { printf ("opensoundsys_close : Bad magic number.\n") ; - return ; - } ; - - memset (opensoundsys_out, 0, sizeof (OSS_AUDIO_OUT)) ; - - free (opensoundsys_out) ; - - return ; -} /* opensoundsys_close */ - -#endif /* __linux__ */ - -/*------------------------------------------------------------------------------ -** Mac OS X functions for playing a sound. -*/ - -#if (defined (__MACH__) && defined (__APPLE__)) /* MacOSX */ - -#include <AvailabilityMacros.h> -#include <CoreAudio/AudioHardware.h> -#ifndef MAC_OS_VERSION_12_0 -#define kAudioObjectPropertyElementMain kAudioObjectPropertyElementMaster -#endif - -#define MACOSX_MAGIC MAKE_MAGIC ('M', 'a', 'c', ' ', 'O', 'S', ' ', 'X') - -typedef struct -{ int magic ; - AudioStreamBasicDescription format ; - - UInt32 buf_size ; - AudioDeviceID device ; - - int channels ; - int samplerate ; - int buffer_size ; - int done_playing ; - - get_audio_callback_t callback ; - - void *callback_data ; - - AudioDeviceIOProcID ioprocid; - -} MACOSX_AUDIO_OUT ; - -static AUDIO_OUT *macosx_open (int channels, int samplerate) ; -static void macosx_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ; -static void macosx_close (AUDIO_OUT *audio_out) ; - -static OSStatus -macosx_audio_out_callback (AudioDeviceID device, const AudioTimeStamp* current_time, - const AudioBufferList* data_in, const AudioTimeStamp* time_in, - AudioBufferList* data_out, const AudioTimeStamp* time_out, void* client_data) ; - - -static AUDIO_OUT * -macosx_open (int channels, int samplerate) -{ MACOSX_AUDIO_OUT *macosx_out ; - OSStatus err ; - UInt32 count ; - AudioObjectPropertyAddress propertyAddress ; - - if ((macosx_out = calloc (1, sizeof (MACOSX_AUDIO_OUT))) == NULL) - { perror ("macosx_open : malloc ") ; - exit (1) ; - } ; - - macosx_out->magic = MACOSX_MAGIC ; - macosx_out->channels = channels ; - macosx_out->samplerate = samplerate ; - - macosx_out->device = kAudioDeviceUnknown ; - - /* get the default output device for the HAL */ - propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice; - propertyAddress.mScope = kAudioDevicePropertyScopeOutput; - propertyAddress.mElement = kAudioObjectPropertyElementMain; - - count = sizeof (AudioDeviceID) ; - if ((err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, - &count, &(macosx_out->device))) != noErr) - { printf ("AudioObjectGetPropertyData (kAudioHardwarePropertyDefaultOutputDevice) failed.\n") ; - free (macosx_out) ; - return NULL ; - } ; - - /* get the buffersize that the default device uses for IO */ - count = sizeof (UInt32) ; - propertyAddress.mSelector = kAudioDevicePropertyBufferSize ; - if ((err = AudioObjectGetPropertyData (macosx_out->device, &propertyAddress, 0, NULL, - &count, &(macosx_out->buffer_size))) != noErr) - { printf ("AudioObjectGetPropertyData (kAudioDevicePropertyBufferSize) (AudioDeviceGetProperty) failed.\n") ; - free (macosx_out) ; - return NULL ; - } ; - - /* get a description of the data format used by the default device */ - count = sizeof (AudioStreamBasicDescription) ; - propertyAddress.mSelector = kAudioDevicePropertyStreamFormat ; - if ((err = AudioObjectGetPropertyData (macosx_out->device, &propertyAddress, 0, NULL, - &count, &(macosx_out->format))) != noErr) - { printf ("AudioObjectGetPropertyData (kAudioDevicePropertyStreamFormat) failed.\n") ; - free (macosx_out) ; - return NULL ; - } ; - - macosx_out->format.mSampleRate = samplerate ; - macosx_out->format.mChannelsPerFrame = channels ; - propertyAddress.mSelector = kAudioDevicePropertyStreamFormat ; - count = sizeof (AudioStreamBasicDescription) ; - if ((err = AudioObjectGetPropertyData (macosx_out->device, &propertyAddress, 0, NULL, - &count, &(macosx_out->format))) != noErr) - { printf ("AudioObjectGetPropertyData (kAudioDevicePropertyStreamFormat) failed.\n") ; - free (macosx_out) ; - return NULL ; - } ; - - /* we want linear pcm */ - if (macosx_out->format.mFormatID != kAudioFormatLinearPCM) - { free (macosx_out) ; - return NULL ; - } ; - - macosx_out->done_playing = 0 ; - - /* Fire off the device. */ - if ((err = AudioDeviceCreateIOProcID (macosx_out->device, macosx_audio_out_callback, - (void *) macosx_out, &macosx_out->ioprocid)) != noErr) - { printf ("AudioDeviceAddIOProc failed.\n") ; - free (macosx_out) ; - return NULL ; - } ; - - return (AUDIO_OUT *) macosx_out ; -} /* macosx_open */ - -static void -macosx_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ MACOSX_AUDIO_OUT *macosx_out ; - OSStatus err ; - - if ((macosx_out = (MACOSX_AUDIO_OUT*) audio_out) == NULL) - { printf ("macosx_play : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (macosx_out->magic != MACOSX_MAGIC) - { printf ("macosx_play : Bad magic number.\n") ; - return ; - } ; - - /* Set the callback function and callback data. */ - macosx_out->callback = callback ; - macosx_out->callback_data = callback_data ; - - err = AudioDeviceStart (macosx_out->device, macosx_audio_out_callback) ; - if (err != noErr) - printf ("AudioDeviceStart failed.\n") ; - - while (macosx_out->done_playing == SF_FALSE) - usleep (10 * 1000) ; /* 10 000 milliseconds. */ - - return ; -} /* macosx_play */ - -static void -macosx_close (AUDIO_OUT *audio_out) -{ MACOSX_AUDIO_OUT *macosx_out ; - OSStatus err ; - - if ((macosx_out = (MACOSX_AUDIO_OUT*) audio_out) == NULL) - { printf ("macosx_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (macosx_out->magic != MACOSX_MAGIC) - { printf ("macosx_close : Bad magic number.\n") ; - return ; - } ; - - - if ((err = AudioDeviceStop (macosx_out->device, macosx_audio_out_callback)) != noErr) - { printf ("AudioDeviceStop failed.\n") ; - return ; - } ; - - err = AudioDeviceDestroyIOProcID(macosx_out->device, - macosx_out->ioprocid); - if (err != noErr) - { printf ("AudioDeviceRemoveIOProc failed.\n") ; - return ; - } ; - -} /* macosx_close */ - -static OSStatus -macosx_audio_out_callback (AudioDeviceID device, const AudioTimeStamp* current_time, - const AudioBufferList* data_in, const AudioTimeStamp* time_in, - AudioBufferList* data_out, const AudioTimeStamp* time_out, void* client_data) -{ MACOSX_AUDIO_OUT *macosx_out ; - int size, frame_count, read_count ; - float *buffer ; - - /* unused params: */ - (void) device; - (void) current_time; - (void) data_in; - (void) time_in; - (void) time_out; - - if ((macosx_out = (MACOSX_AUDIO_OUT*) client_data) == NULL) - { printf ("macosx_play : AUDIO_OUT is NULL.\n") ; - return 42 ; - } ; - - if (macosx_out->magic != MACOSX_MAGIC) - { printf ("macosx_play : Bad magic number.\n") ; - return 42 ; - } ; - - size = data_out->mBuffers [0].mDataByteSize ; - frame_count = size / sizeof (float) / macosx_out->channels ; - - buffer = (float*) data_out->mBuffers [0].mData ; - - read_count = macosx_out->callback (macosx_out->callback_data, buffer, frame_count) ; - - if (read_count < frame_count) - { memset (&(buffer [read_count]), 0, (frame_count - read_count) * sizeof (float)) ; - macosx_out->done_playing = 1 ; - } ; - - return noErr ; -} /* macosx_audio_out_callback */ - -#endif /* MacOSX */ - - -/*------------------------------------------------------------------------------ -** Win32 functions for playing a sound. -** -** This API sucks. Its needlessly complicated and is *WAY* too loose with -** passing pointers arounf in integers and and using char* pointers to -** point to data instead of short*. It plain sucks! -*/ - -#if (defined (_WIN32) || defined (WIN32)) - -#define WIN32_BUFFER_LEN (1<<15) -#define WIN32_MAGIC MAKE_MAGIC ('W', 'i', 'n', '3', '2', 's', 'u', 'x') - -typedef struct -{ int magic ; - - HWAVEOUT hwave ; - WAVEHDR whdr [2] ; - - HANDLE Event ; - - short short_buffer [WIN32_BUFFER_LEN / sizeof (short)] ; - float float_buffer [WIN32_BUFFER_LEN / sizeof (short) / 2] ; - - int bufferlen, current ; - - int channels ; - - get_audio_callback_t callback ; - - void *callback_data ; -} WIN32_AUDIO_OUT ; - -static AUDIO_OUT *win32_open (int channels, int samplerate) ; -static void win32_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ; -static void win32_close (AUDIO_OUT *audio_out) ; - -static DWORD CALLBACK - win32_audio_out_callback (HWAVEOUT hwave, UINT msg, DWORD_PTR data, DWORD_PTR param1, DWORD_PTR param2) ; - -static AUDIO_OUT* -win32_open (int channels, int samplerate) -{ WIN32_AUDIO_OUT *win32_out ; - - WAVEFORMATEX wf ; - int error ; - - if ((win32_out = calloc (1, sizeof (WIN32_AUDIO_OUT))) == NULL) - { perror ("win32_open : malloc ") ; - exit (1) ; - } ; - - win32_out->magic = WIN32_MAGIC ; - win32_out->channels = channels ; - - win32_out->current = 0 ; - - win32_out->Event = CreateEvent (0, FALSE, FALSE, 0) ; - - wf.nChannels = channels ; - wf.nSamplesPerSec = samplerate ; - wf.nBlockAlign = (WORD) (channels * sizeof (short)) ; - - wf.wFormatTag = WAVE_FORMAT_PCM ; - wf.cbSize = 0 ; - wf.wBitsPerSample = 16 ; - wf.nAvgBytesPerSec = wf.nBlockAlign * wf.nSamplesPerSec ; - - error = waveOutOpen (&(win32_out->hwave), WAVE_MAPPER, &wf, (DWORD_PTR) win32_audio_out_callback, - (DWORD_PTR) win32_out, CALLBACK_FUNCTION) ; - if (error) - { puts ("waveOutOpen failed.") ; - free (win32_out) ; - return NULL ; - } ; - - waveOutPause (win32_out->hwave) ; - - return (AUDIO_OUT *) win32_out ; -} /* win32_open */ - -static void -win32_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ WIN32_AUDIO_OUT *win32_out ; - int error ; - - if ((win32_out = (WIN32_AUDIO_OUT*) audio_out) == NULL) - { printf ("win32_play : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (win32_out->magic != WIN32_MAGIC) - { printf ("win32_play : Bad magic number (%d %d).\n", win32_out->magic, WIN32_MAGIC) ; - return ; - } ; - - /* Set the callback function and callback data. */ - win32_out->callback = callback ; - win32_out->callback_data = callback_data ; - - win32_out->whdr [0].lpData = (char*) win32_out->short_buffer ; - win32_out->whdr [1].lpData = ((char*) win32_out->short_buffer) + sizeof (win32_out->short_buffer) / 2 ; - - win32_out->whdr [0].dwBufferLength = sizeof (win32_out->short_buffer) / 2 ; - win32_out->whdr [1].dwBufferLength = sizeof (win32_out->short_buffer) / 2 ; - - win32_out->bufferlen = sizeof (win32_out->short_buffer) / 2 / sizeof (short) ; - - /* Prepare the WAVEHDRs */ - if ((error = waveOutPrepareHeader (win32_out->hwave, &(win32_out->whdr [0]), sizeof (WAVEHDR)))) - { printf ("waveOutPrepareHeader [0] failed : %08X\n", error) ; - waveOutClose (win32_out->hwave) ; - return ; - } ; - - if ((error = waveOutPrepareHeader (win32_out->hwave, &(win32_out->whdr [1]), sizeof (WAVEHDR)))) - { printf ("waveOutPrepareHeader [1] failed : %08X\n", error) ; - waveOutUnprepareHeader (win32_out->hwave, &(win32_out->whdr [0]), sizeof (WAVEHDR)) ; - waveOutClose (win32_out->hwave) ; - return ; - } ; - - waveOutRestart (win32_out->hwave) ; - - /* Fake 2 calls to the callback function to queue up enough audio. */ - win32_audio_out_callback (0, MM_WOM_DONE, (DWORD_PTR) win32_out, 0, 0) ; - win32_audio_out_callback (0, MM_WOM_DONE, (DWORD_PTR) win32_out, 0, 0) ; - - /* Wait for playback to finish. The callback notifies us when all - ** wave data has been played. - */ - WaitForSingleObject (win32_out->Event, INFINITE) ; - - waveOutPause (win32_out->hwave) ; - waveOutReset (win32_out->hwave) ; - - waveOutUnprepareHeader (win32_out->hwave, &(win32_out->whdr [0]), sizeof (WAVEHDR)) ; - waveOutUnprepareHeader (win32_out->hwave, &(win32_out->whdr [1]), sizeof (WAVEHDR)) ; - - waveOutClose (win32_out->hwave) ; - win32_out->hwave = 0 ; - - return ; -} /* win32_play */ - -static void -win32_close (AUDIO_OUT *audio_out) -{ WIN32_AUDIO_OUT *win32_out ; - - if ((win32_out = (WIN32_AUDIO_OUT*) audio_out) == NULL) - { printf ("win32_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (win32_out->magic != WIN32_MAGIC) - { printf ("win32_close : Bad magic number.\n") ; - return ; - } ; - - memset (win32_out, 0, sizeof (WIN32_AUDIO_OUT)) ; - - free (win32_out) ; -} /* win32_close */ - -static DWORD CALLBACK -win32_audio_out_callback (HWAVEOUT hwave, UINT msg, DWORD_PTR data, DWORD_PTR param1, DWORD_PTR param2) -{ - UNREFERENCED_PARAMETER (hwave) ; - UNREFERENCED_PARAMETER (param1) ; - UNREFERENCED_PARAMETER (param2) ; - WIN32_AUDIO_OUT *win32_out ; - int read_count, frame_count, k ; - short *sptr ; - - /* - ** I consider this technique of passing a pointer via an integer as - ** fundamentally broken but thats the way microsoft has defined the - ** interface. - */ - if ((win32_out = (WIN32_AUDIO_OUT*) data) == NULL) - { printf ("win32_audio_out_callback : AUDIO_OUT is NULL.\n") ; - return 1 ; - } ; - - if (win32_out->magic != WIN32_MAGIC) - { printf ("win32_audio_out_callback : Bad magic number (%d %d).\n", win32_out->magic, WIN32_MAGIC) ; - return 1 ; - } ; - - if (msg != MM_WOM_DONE) - return 0 ; - - /* Do the actual audio. */ - frame_count = win32_out->bufferlen / win32_out->channels ; - - read_count = win32_out->callback (win32_out->callback_data, win32_out->float_buffer, frame_count) ; - - sptr = (short*) win32_out->whdr [win32_out->current].lpData ; - - for (k = 0 ; k < read_count ; k++) - sptr [k] = (short) lrint (32767.0 * win32_out->float_buffer [k]) ; - - if (read_count > 0) - { /* Fix buffer length is only a partial block. */ - if (read_count * (int) sizeof (short) < win32_out->bufferlen) - win32_out->whdr [win32_out->current].dwBufferLength = read_count * sizeof (short) ; - - /* Queue the WAVEHDR */ - waveOutWrite (win32_out->hwave, (LPWAVEHDR) &(win32_out->whdr [win32_out->current]), sizeof (WAVEHDR)) ; - } - else - { /* Stop playback */ - waveOutPause (win32_out->hwave) ; - - SetEvent (win32_out->Event) ; - } ; - - win32_out->current = (win32_out->current + 1) % 2 ; - - return 0 ; -} /* win32_audio_out_callback */ - -#endif /* Win32 */ - -/*------------------------------------------------------------------------------ -** Solaris. -*/ - -#if (defined (sun) && defined (unix)) /* ie Solaris */ - -#include <fcntl.h> -#include <sys/ioctl.h> -#include <sys/audioio.h> - -#define SOLARIS_MAGIC MAKE_MAGIC ('S', 'o', 'l', 'a', 'r', 'i', 's', ' ') - -typedef struct -{ int magic ; - int fd ; - int channels ; - int samplerate ; -} SOLARIS_AUDIO_OUT ; - -static AUDIO_OUT *solaris_open (int channels, int samplerate) ; -static void solaris_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ; -static void solaris_close (AUDIO_OUT *audio_out) ; - -static AUDIO_OUT * -solaris_open (int channels, int samplerate) -{ SOLARIS_AUDIO_OUT *solaris_out ; - audio_info_t audio_info ; - int error ; - - if ((solaris_out = calloc (1, sizeof (SOLARIS_AUDIO_OUT))) == NULL) - { perror ("solaris_open : malloc ") ; - exit (1) ; - } ; - - solaris_out->magic = SOLARIS_MAGIC ; - solaris_out->channels = channels ; - solaris_out->samplerate = channels ; - - /* open the audio device - write only, non-blocking */ - if ((solaris_out->fd = open ("/dev/audio", O_WRONLY | O_NONBLOCK)) < 0) - { perror ("open (/dev/audio) failed") ; - exit (1) ; - } ; - - /* Retrive standard values. */ - AUDIO_INITINFO (&audio_info) ; - - audio_info.play.sample_rate = samplerate ; - audio_info.play.channels = channels ; - audio_info.play.precision = 16 ; - audio_info.play.encoding = AUDIO_ENCODING_LINEAR ; - audio_info.play.gain = AUDIO_MAX_GAIN ; - audio_info.play.balance = AUDIO_MID_BALANCE ; - - if ((error = ioctl (solaris_out->fd, AUDIO_SETINFO, &audio_info))) - { perror ("ioctl (AUDIO_SETINFO) failed") ; - exit (1) ; - } ; - - return (AUDIO_OUT*) solaris_out ; -} /* solaris_open */ - -static void -solaris_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ SOLARIS_AUDIO_OUT *solaris_out ; - static float float_buffer [BUFFER_LEN] ; - static short buffer [BUFFER_LEN] ; - int k, read_frames ; - - if ((solaris_out = (SOLARIS_AUDIO_OUT*) audio_out) == NULL) - { printf ("solaris_play : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (solaris_out->magic != SOLARIS_MAGIC) - { printf ("solaris_play : Bad magic number.\n") ; - return ; - } ; - - while ((read_frames = callback (callback_data, float_buffer, BUFFER_LEN / solaris_out->channels))) - { for (k = 0 ; k < read_frames * solaris_out->channels ; k++) - buffer [k] = psf_lrint (32767.0 * float_buffer [k]) ; - write (solaris_out->fd, buffer, read_frames * solaris_out->channels * sizeof (short)) ; - } ; - - return ; -} /* solaris_play */ - -static void -solaris_close (AUDIO_OUT *audio_out) -{ SOLARIS_AUDIO_OUT *solaris_out ; - - if ((solaris_out = (SOLARIS_AUDIO_OUT*) audio_out) == NULL) - { printf ("solaris_close : AUDIO_OUT is NULL.\n") ; - return ; - } ; - - if (solaris_out->magic != SOLARIS_MAGIC) - { printf ("solaris_close : Bad magic number.\n") ; - return ; - } ; - - memset (solaris_out, 0, sizeof (SOLARIS_AUDIO_OUT)) ; - - free (solaris_out) ; - - return ; -} /* solaris_close */ - -#endif /* Solaris */ - -/*============================================================================== -** Main function. -*/ - -AUDIO_OUT * -audio_open (int channels, int samplerate) -{ -#if defined (__linux__) - #if HAVE_ALSA - if (access ("/proc/asound/cards", R_OK) == 0) - return alsa_open (channels, samplerate) ; - #endif - return opensoundsys_open (channels, samplerate) ; -#elif (defined (__MACH__) && defined (__APPLE__)) - return macosx_open (channels, samplerate) ; -#elif (defined (sun) && defined (unix)) - return solaris_open (channels, samplerate) ; -#elif (defined (_WIN32) || defined (WIN32)) - return win32_open (channels, samplerate) ; -#else - #warning "*** Playing sound not yet supported on this platform." - #warning "*** Please feel free to submit a patch." - printf ("Error : Playing sound not yet supported on this platform.\n") ; - return NULL ; -#endif - - - return NULL ; -} /* audio_open */ - -void -audio_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ - - if (callback == NULL) - { printf ("Error : bad callback pointer.\n") ; - return ; - } ; - - if (audio_out == NULL) - { printf ("Error : bad audio_out pointer.\n") ; - return ; - } ; - - if (callback_data == NULL) - { printf ("Error : bad callback_data pointer.\n") ; - return ; - } ; - -#if defined (__linux__) - #if HAVE_ALSA - if (audio_out->magic == ALSA_MAGIC) - alsa_play (callback, audio_out, callback_data) ; - #endif - opensoundsys_play (callback, audio_out, callback_data) ; -#elif (defined (__MACH__) && defined (__APPLE__)) - macosx_play (callback, audio_out, callback_data) ; -#elif (defined (sun) && defined (unix)) - solaris_play (callback, audio_out, callback_data) ; -#elif (defined (_WIN32) || defined (WIN32)) - win32_play (callback, audio_out, callback_data) ; -#else - #warning "*** Playing sound not yet supported on this platform." - #warning "*** Please feel free to submit a patch." - printf ("Error : Playing sound not yet supported on this platform.\n") ; - return ; -#endif - - return ; -} /* audio_play */ - -void -audio_close (AUDIO_OUT *audio_out) -{ -#if defined (__linux__) - #if HAVE_ALSA - if (audio_out->magic == ALSA_MAGIC) - alsa_close (audio_out) ; - #endif - opensoundsys_close (audio_out) ; -#elif (defined (__MACH__) && defined (__APPLE__)) - macosx_close (audio_out) ; -#elif (defined (sun) && defined (unix)) - solaris_close (audio_out) ; -#elif (defined (_WIN32) || defined (WIN32)) - win32_close (audio_out) ; -#else - #warning "*** Playing sound not yet supported on this platform." - #warning "*** Please feel free to submit a patch." - printf ("Error : Playing sound not yet supported on this platform.\n") ; - return ; -#endif - - return ; -} /* audio_close */ - -#else /* (HAVE_SNDFILE == 0) */ - -/* Do not have libsndfile installed so just return. */ - -AUDIO_OUT * -audio_open (int channels, int samplerate) -{ - (void) channels ; - (void) samplerate ; - - return NULL ; -} /* audio_open */ - -void -audio_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) -{ - (void) callback ; - (void) audio_out ; - (void) callback_data ; - - return ; -} /* audio_play */ - -void -audio_close (AUDIO_OUT *audio_out) -{ - audio_out = audio_out ; - - return ; -} /* audio_close */ - -#endif /* HAVE_SNDFILE */ - diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.h b/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.h deleted file mode 100755 index 993da707..00000000 --- a/lib/libsamplerate/libsamplerate-0.2.2/examples/audio_out.h +++ /dev/null @@ -1,25 +0,0 @@ -/* -** Copyright (c) 1999-2016, Erik de Castro Lopo <erikd@mega-nerd.com> -** All rights reserved. -** -** This code is released under 2-clause BSD license. Please see the -** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING -*/ - -typedef struct AUDIO_OUT AUDIO_OUT ; - -typedef int (*get_audio_callback_t) (void *callback_data, float *samples, int frames) ; - -/* A general audio output function (Linux/ALSA, Linux/OSS, Win32, MacOSX, -** Solaris) which retrieves data using the callback function in the above -** struct. -** -** audio_open - opens the device and returns an anonymous pointer to its -** own private data. -*/ - -AUDIO_OUT *audio_open (int channels, int samplerate) ; - -void audio_play (get_audio_callback_t callback, AUDIO_OUT *audio_out, void *callback_data) ; - -void audio_close (AUDIO_OUT *audio_data) ; diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c b/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c deleted file mode 100755 index 4f9f3fa7..00000000 --- a/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c +++ /dev/null @@ -1,234 +0,0 @@ -/* -** Copyright (c) 2005-2016, Erik de Castro Lopo <erikd@mega-nerd.com> -** All rights reserved. -** -** This code is released under 2-clause BSD license. Please see the -** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <stdlib.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <string.h> -#include <math.h> - -#if (HAVE_SNDFILE) - -#include <samplerate.h> -#include <sndfile.h> - -#define ARRAY_LEN(x) ((int) (sizeof (x) / sizeof ((x) [0]))) - -#define DEFAULT_CONVERTER SRC_SINC_MEDIUM_QUALITY - -#define BUFFER_LEN 1024 -#define INPUT_STEP_SIZE 8 - -typedef struct -{ sf_count_t index ; - double ratio ; -} TIMEWARP_FACTOR ; - -static void usage_exit (const char *progname) ; -static sf_count_t timewarp_convert (SNDFILE *infile, SNDFILE *outfile, int converter, int channels) ; - -int -main (int argc, char *argv []) -{ SNDFILE *infile, *outfile ; - SF_INFO sfinfo ; - sf_count_t count ; - - if (argc != 3) - usage_exit (argv [0]) ; - - putchar ('\n') ; - printf ("Input File : %s\n", argv [argc - 2]) ; - if ((infile = sf_open (argv [argc - 2], SFM_READ, &sfinfo)) == NULL) - { printf ("Error : Not able to open input file '%s'\n", argv [argc - 2]) ; - exit (1) ; - } ; - - if (INPUT_STEP_SIZE * sfinfo.channels > BUFFER_LEN) - { printf ("\n\nError : INPUT_STEP_SIZE * sfinfo.channels > BUFFER_LEN\n\n") ; - exit (1) ; - } ; - - - /* Delete the output file length to zero if already exists. */ - remove (argv [argc - 1]) ; - - if ((outfile = sf_open (argv [argc - 1], SFM_WRITE, &sfinfo)) == NULL) - { printf ("Error : Not able to open output file '%s'\n", argv [argc - 1]) ; - sf_close (infile) ; - exit (1) ; - } ; - - sf_command (outfile, SFC_SET_CLIPPING, NULL, SF_TRUE) ; - - printf ("Output file : %s\n", argv [argc - 1]) ; - printf ("Converter : %s\n", src_get_name (DEFAULT_CONVERTER)) ; - - count = timewarp_convert (infile, outfile, DEFAULT_CONVERTER, sfinfo.channels) ; - - printf ("Output Frames : %ld\n\n", (long) count) ; - - sf_close (infile) ; - sf_close (outfile) ; - - return 0 ; -} /* main */ - -/*============================================================================== -*/ - -static TIMEWARP_FACTOR warp [] = -{ { 0 , 1.00000001 }, - { 20000 , 1.01000000 }, - { 20200 , 1.00000001 }, - { 40000 , 1.20000000 }, - { 40300 , 1.00000001 }, - { 60000 , 1.10000000 }, - { 60400 , 1.00000001 }, - { 80000 , 1.50000000 }, - { 81000 , 1.00000001 }, -} ; - -static sf_count_t -timewarp_convert (SNDFILE *infile, SNDFILE *outfile, int converter, int channels) -{ static float input [BUFFER_LEN] ; - static float output [BUFFER_LEN] ; - - SRC_STATE *src_state ; - SRC_DATA src_data ; - int error, warp_index = 0 ; - sf_count_t input_count = 0, output_count = 0 ; - - sf_seek (infile, 0, SEEK_SET) ; - sf_seek (outfile, 0, SEEK_SET) ; - - /* Initialize the sample rate converter. */ - if ((src_state = src_new (converter, channels, &error)) == NULL) - { printf ("\n\nError : src_new() failed : %s.\n\n", src_strerror (error)) ; - exit (1) ; - } ; - - src_data.end_of_input = 0 ; /* Set this later. */ - - /* Start with zero to force load in while loop. */ - src_data.input_frames = 0 ; - src_data.data_in = input ; - - if (warp [0].index > 0) - src_data.src_ratio = 1.0 ; - else - { src_data.src_ratio = warp [0].ratio ; - warp_index ++ ; - } ; - - src_data.data_out = output ; - src_data.output_frames = BUFFER_LEN /channels ; - - while (1) - { - if (warp_index < ARRAY_LEN (warp) - 1 && input_count >= warp [warp_index].index) - { src_data.src_ratio = warp [warp_index].ratio ; - warp_index ++ ; - } ; - - /* If the input buffer is empty, refill it. */ - if (src_data.input_frames == 0) - { src_data.input_frames = (long) sf_readf_float (infile, input, INPUT_STEP_SIZE) ; - input_count += src_data.input_frames ; - src_data.data_in = input ; - - /* The last read will not be a full buffer, so snd_of_input. */ - if (src_data.input_frames < INPUT_STEP_SIZE) - src_data.end_of_input = SF_TRUE ; - } ; - - /* Process current block. */ - if ((error = src_process (src_state, &src_data))) - { printf ("\nError : %s\n", src_strerror (error)) ; - exit (1) ; - } ; - - /* Terminate if done. */ - if (src_data.end_of_input && src_data.output_frames_gen == 0) - break ; - - /* Write output. */ - sf_writef_float (outfile, output, src_data.output_frames_gen) ; - output_count += src_data.output_frames_gen ; - - src_data.data_in += src_data.input_frames_used * channels ; - src_data.input_frames -= src_data.input_frames_used ; - } ; - - src_delete (src_state) ; - - return output_count ; -} /* timewarp_convert */ - -/*------------------------------------------------------------------------------ -*/ - -static void -usage_exit (const char *progname) -{ const char *cptr ; - - if ((cptr = strrchr (progname, '/')) != NULL) - progname = cptr + 1 ; - - if ((cptr = strrchr (progname, '\\')) != NULL) - progname = cptr + 1 ; - - printf ("\n" - " A program demonstrating the time warping capabilities of libsamplerate." - " It uses libsndfile for file I/O and Secret Rabbit Code (aka libsamplerate)" - " for performing the warping.\n" - " It works on any file format supported by libsndfile with any \n" - " number of channels (limited only by host memory).\n" - "\n" - " The warping is dependant on a table hard code into the source code.\n" - "\n" - " libsamplerate version : %s\n" - "\n" - " Usage : \n" - " %s <input file> <output file>\n" - "\n", src_get_version (), progname) ; - - puts ("") ; - - exit (1) ; -} /* usage_exit */ - -/*============================================================================== -*/ - -#else /* (HAVE_SNFILE == 0) */ - -/* Alternative main function when libsndfile is not available. */ - -int -main (void) -{ puts ( - "\n" - "****************************************************************\n" - " This example program was compiled without libsndfile \n" - " (https://github.com/libsndfile/libsndfile/).\n" - " It is therefore completely broken and non-functional.\n" - "****************************************************************\n" - "\n" - ) ; - - return 0 ; -} /* main */ - -#endif - diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/varispeed-play.c b/lib/libsamplerate/libsamplerate-0.2.2/examples/varispeed-play.c deleted file mode 100755 index 72a5a9c3..00000000 --- a/lib/libsamplerate/libsamplerate-0.2.2/examples/varispeed-play.c +++ /dev/null @@ -1,246 +0,0 @@ -/* -** Copyright (c) 2002-2016, Erik de Castro Lopo <erikd@mega-nerd.com> -** All rights reserved. -** -** This code is released under 2-clause BSD license. Please see the -** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <stdlib.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <string.h> -#include <math.h> - -#if (HAVE_SNDFILE) - -#include <samplerate.h> -#include <sndfile.h> - -#include "audio_out.h" - -#define ARRAY_LEN(x) ((int) (sizeof (x) / sizeof ((x) [0]))) - -#define BUFFER_LEN 4096 -#define VARISPEED_BLOCK_LEN 64 - -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - -#define SRC_MAGIC ((int) ('S' << 16) + ('R' << 8) + ('C')) -#define SNDFILE_MAGIC ((int) ('s' << 24) + ('n' << 20) + ('d' << 16) + ('f' << 12) + ('i' << 8) + ('l' << 4) + 'e') - -#ifndef M_PI -#define M_PI 3.14159265358979323846264338 -#endif - - -typedef struct -{ int magic ; - SNDFILE *sndfile ; - SF_INFO sfinfo ; - - float buffer [BUFFER_LEN] ; -} SNDFILE_CB_DATA ; - -typedef struct -{ int magic ; - - SNDFILE_CB_DATA sf ; - - int freq_point ; - - SRC_STATE *src_state ; - -} SRC_CB_DATA ; - -static int varispeed_get_data (SRC_CB_DATA *data, float *samples, int frames) ; -static void varispeed_play (const char *filename, int converter) ; - -static long src_input_callback (void *cb_data, float **data) ; - -int -main (int argc, char *argv []) -{ const char *cptr, *progname, *filename ; - int k, converter ; - - converter = SRC_SINC_FASTEST ; - - progname = argv [0] ; - - if ((cptr = strrchr (progname, '/')) != NULL) - progname = cptr + 1 ; - - if ((cptr = strrchr (progname, '\\')) != NULL) - progname = cptr + 1 ; - - printf ("\n" - " %s\n" - "\n" - " This is a demo program which plays the given file at a slowly \n" - " varying speed. Lots of fun with drum loops and full mixes.\n" - "\n" - " It uses Secret Rabbit Code (aka libsamplerate) to perform the \n" - " vari-speeding and libsndfile for file I/O.\n" - "\n", progname) ; - - if (argc == 2) - filename = argv [1] ; - else if (argc == 4 && strcmp (argv [1], "-c") == 0) - { filename = argv [3] ; - converter = atoi (argv [2]) ; - } - else - { printf (" Usage :\n\n %s [-c <number>] <input file>\n\n", progname) ; - puts ( - " The optional -c argument allows the converter type to be chosen from\n" - " the following list :" - "\n" - ) ; - - for (k = 0 ; (cptr = src_get_name (k)) != NULL ; k++) - printf (" %d : %s\n", k, cptr) ; - - puts ("") ; - exit (1) ; - } ; - - varispeed_play (filename, converter) ; - - return 0 ; -} /* main */ - -/*============================================================================== -*/ - -static void -varispeed_play (const char *filename, int converter) -{ SRC_CB_DATA data ; - AUDIO_OUT *audio_out ; - int error ; - - memset (&data, 0, sizeof (data)) ; - - data.magic = SRC_MAGIC ; - data.sf.magic = SNDFILE_MAGIC ; - - if ((data.sf.sndfile = sf_open (filename, SFM_READ, &data.sf.sfinfo)) == NULL) - { puts (sf_strerror (NULL)) ; - exit (1) ; - } ; - - /* Initialize the sample rate converter. */ - if ((data.src_state = src_callback_new (src_input_callback, converter, data.sf.sfinfo.channels, &error, &data.sf)) == NULL) - { printf ("\n\nError : src_new() failed : %s.\n\n", src_strerror (error)) ; - exit (1) ; - } ; - - printf ( - - " Playing : %s\n" - " Converter : %s\n" - "\n" - " Press <control-c> to exit.\n" - "\n", - filename, src_get_name (converter)) ; - - if ((audio_out = audio_open (data.sf.sfinfo.channels, data.sf.sfinfo.samplerate)) == NULL) - { printf ("\n\nError : audio_open () failed.\n") ; - exit (1) ; - } ; - - /* Pass the data and the callbacl function to audio_play */ - audio_play ((get_audio_callback_t) varispeed_get_data, audio_out, &data) ; - - /* Cleanup */ - audio_close (audio_out) ; - sf_close (data.sf.sndfile) ; - src_delete (data.src_state) ; - -} /* varispeed_play */ - -static long -src_input_callback (void *cb_data, float **audio) -{ SNDFILE_CB_DATA * data = (SNDFILE_CB_DATA *) cb_data ; - const int input_frames = ARRAY_LEN (data->buffer) / data->sfinfo.channels ; - int read_frames ; - - if (data->magic != SNDFILE_MAGIC) - { printf ("\n\n%s:%d Eeeek, something really bad happened!\n", __FILE__, __LINE__) ; - exit (1) ; - } ; - - for (read_frames = 0 ; read_frames < input_frames ; ) - { sf_count_t position ; - - read_frames += (int) sf_readf_float (data->sndfile, data->buffer + read_frames * data->sfinfo.channels, input_frames - read_frames) ; - - position = sf_seek (data->sndfile, 0, SEEK_CUR) ; - - if (position < 0 || position == data->sfinfo.frames) - sf_seek (data->sndfile, 0, SEEK_SET) ; - } ; - - *audio = & (data->buffer [0]) ; - - return input_frames ; -} /* src_input_callback */ - - -/*============================================================================== -*/ - -static int -varispeed_get_data (SRC_CB_DATA *data, float *samples, int out_frames) -{ float *output ; - int rc, out_frame_count ; - - if (data->magic != SRC_MAGIC) - { printf ("\n\n%s:%d Eeeek, something really bad happened!\n", __FILE__, __LINE__) ; - exit (1) ; - } ; - - for (out_frame_count = 0 ; out_frame_count < out_frames ; out_frame_count += VARISPEED_BLOCK_LEN) - { double src_ratio = 1.0 - 0.5 * sin (data->freq_point * 2 * M_PI / 20000) ; - - data->freq_point ++ ; - - output = samples + out_frame_count * data->sf.sfinfo.channels ; - - if ((rc = src_callback_read (data->src_state, src_ratio, VARISPEED_BLOCK_LEN, output)) < VARISPEED_BLOCK_LEN) - { printf ("\nError : src_callback_read short output (%d instead of %d)\n\n", rc, VARISPEED_BLOCK_LEN) ; - exit (1) ; - } ; - } ; - - return out_frames ; -} /* varispeed_get_data */ - -/*============================================================================== -*/ - -#else /* (HAVE_SNFILE == 0) */ - -/* Alternative main function when libsndfile is not available. */ - -int -main (void) -{ puts ( - "\n" - "****************************************************************\n" - " This example program was compiled without libsndfile \n" - " (http://www.zip.com.au/~erikd/libsndfile/).\n" - " It is therefore completely broken and non-functional.\n" - "****************************************************************\n" - "\n" - ) ; - - return 0 ; -} /* main */ - -#endif |