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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
commitf721e3ac031f892af46f255a47d7f54a91317b30 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /audio/wavaudio.c
parentbae1bc39312d5019bd9a5b8d840a529213a69a17 (diff)
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auto import from //depot/cupcake/@135843
Diffstat (limited to 'audio/wavaudio.c')
-rw-r--r--audio/wavaudio.c482
1 files changed, 0 insertions, 482 deletions
diff --git a/audio/wavaudio.c b/audio/wavaudio.c
deleted file mode 100644
index 8a500b9..0000000
--- a/audio/wavaudio.c
+++ /dev/null
@@ -1,482 +0,0 @@
-/*
- * QEMU WAV audio driver
- *
- * Copyright (c) 2007 The Android Open Source Project
- * Copyright (c) 2004-2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#define AUDIO_CAP "wav"
-#include "qemu-timer.h"
-#include "audio_int.h"
-#include "qemu_file.h"
-
-#define WAV_AUDIO_IN 1
-
-/** VOICE OUT (Saving to a .WAV file)
- **/
-typedef struct WAVVoiceOut {
- HWVoiceOut hw;
- QEMUFile *f;
- int64_t old_ticks;
- void *pcm_buf;
- int total_samples;
-} WAVVoiceOut;
-
-static struct {
- audsettings_t settings;
- const char *wav_path;
-} conf_out = {
- {
- 44100,
- 2,
- AUD_FMT_S16,
- 0
- },
- "qemu.wav"
-};
-
-static int wav_out_run (HWVoiceOut *hw)
-{
- WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int rpos, live, decr, samples;
- uint8_t *dst;
- st_sample_t *src;
- int64_t now = qemu_get_clock (vm_clock);
- int64_t ticks = now - wav->old_ticks;
- int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
-
- if (bytes > INT_MAX) {
- samples = INT_MAX >> hw->info.shift;
- }
- else {
- samples = bytes >> hw->info.shift;
- }
-
- live = audio_pcm_hw_get_live_out (hw);
- if (!live) {
- return 0;
- }
-
- wav->old_ticks = now;
- decr = audio_MIN (live, samples);
- samples = decr;
- rpos = hw->rpos;
- while (samples) {
- int left_till_end_samples = hw->samples - rpos;
- int convert_samples = audio_MIN (samples, left_till_end_samples);
-
- src = hw->mix_buf + rpos;
- dst = advance (wav->pcm_buf, rpos << hw->info.shift);
-
- hw->clip (dst, src, convert_samples);
- qemu_put_buffer (wav->f, dst, convert_samples << hw->info.shift);
-
- rpos = (rpos + convert_samples) % hw->samples;
- samples -= convert_samples;
- wav->total_samples += convert_samples;
- }
-
- hw->rpos = rpos;
- return decr;
-}
-
-static int wav_out_write (SWVoiceOut *sw, void *buf, int len)
-{
- return audio_pcm_sw_write (sw, buf, len);
-}
-
-/* VICE code: Store number as little endian. */
-static void le_store (uint8_t *buf, uint32_t val, int len)
-{
- int i;
- for (i = 0; i < len; i++) {
- buf[i] = (uint8_t) (val & 0xff);
- val >>= 8;
- }
-}
-
-static int wav_out_init (HWVoiceOut *hw, audsettings_t *as)
-{
- WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- int bits16 = 0, stereo = 0;
- uint8_t hdr[] = {
- 0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56,
- 0x45, 0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00,
- 0x02, 0x00, 0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04,
- 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
- };
- audsettings_t wav_as = conf_out.settings;
-
- (void) as;
-
- stereo = wav_as.nchannels == 2;
- switch (wav_as.fmt) {
- case AUD_FMT_S8:
- case AUD_FMT_U8:
- bits16 = 0;
- break;
-
- case AUD_FMT_S16:
- case AUD_FMT_U16:
- bits16 = 1;
- break;
-
- case AUD_FMT_S32:
- case AUD_FMT_U32:
- dolog ("WAVE files can not handle 32bit formats\n");
- return -1;
- }
-
- hdr[34] = bits16 ? 0x10 : 0x08;
-
- wav_as.endianness = 0;
- audio_pcm_init_info (&hw->info, &wav_as);
-
- hw->samples = 1024;
- wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
- if (!wav->pcm_buf) {
- dolog ("Could not allocate buffer (%d bytes)\n",
- hw->samples << hw->info.shift);
- return -1;
- }
-
- le_store (hdr + 22, hw->info.nchannels, 2);
- le_store (hdr + 24, hw->info.freq, 4);
- le_store (hdr + 28, hw->info.freq << (bits16 + stereo), 4);
- le_store (hdr + 32, 1 << (bits16 + stereo), 2);
-
- wav->f = qemu_fopen (conf_out.wav_path, "wb");
- if (!wav->f) {
- dolog ("Failed to open wave file `%s'\nReason: %s\n",
- conf_out.wav_path, strerror (errno));
- qemu_free (wav->pcm_buf);
- wav->pcm_buf = NULL;
- return -1;
- }
-
- qemu_put_buffer (wav->f, hdr, sizeof (hdr));
- return 0;
-}
-
-static void wav_out_fini (HWVoiceOut *hw)
-{
- WAVVoiceOut *wav = (WAVVoiceOut *) hw;
- uint8_t rlen[4];
- uint8_t dlen[4];
- uint32_t datalen = wav->total_samples << hw->info.shift;
- uint32_t rifflen = datalen + 36;
-
- if (!wav->f) {
- return;
- }
-
- le_store (rlen, rifflen, 4);
- le_store (dlen, datalen, 4);
-
- qemu_fseek (wav->f, 4, SEEK_SET);
- qemu_put_buffer (wav->f, rlen, 4);
-
- qemu_fseek (wav->f, 32, SEEK_CUR);
- qemu_put_buffer (wav->f, dlen, 4);
-
- qemu_fclose (wav->f);
- wav->f = NULL;
-
- qemu_free (wav->pcm_buf);
- wav->pcm_buf = NULL;
-}
-
-static int wav_out_ctl (HWVoiceOut *hw, int cmd, ...)
-{
- (void) hw;
- (void) cmd;
- return 0;
-}
-
-
-#if WAV_AUDIO_IN
-
-/** WAV IN (Reading from a .WAV file)
- **/
-
- static struct {
- const char *wav_path;
-} conf_in = {
- "qemu.wav"
-};
-
-typedef struct WAVVoiceIn {
- HWVoiceIn hw;
- QEMUFile* f;
- int64_t old_ticks;
- void* pcm_buf;
- int total_samples;
- int total_size;
-} WAVVoiceIn;
-
-
-static int
-le_read( const uint8_t* p, int size ) {
- int shift = 0;
- int result = 0;
- for ( ; size > 0; size-- ) {
- result = result | (p[0] << shift);
- p += 1;
- shift += 8;
- }
- return result;
-}
-
-static int
-wav_in_init (HWVoiceIn *hw, audsettings_t *as)
-{
- WAVVoiceIn* wav = (WAVVoiceIn *) hw;
- const char* path = conf_in.wav_path;
- uint8_t hdr[44];
- audsettings_t wav_as = *as;
- int nchannels, freq, format, bits;
-
- wav->f = qemu_fopen (path, "rb");
- if (wav->f == NULL) {
- dolog("Failed to open wave file '%s'\nReason: %s\n", path,
- strerror(errno));
- return -1;
- }
-
- if (qemu_get_buffer (wav->f, hdr, sizeof(hdr)) != (int)sizeof(hdr)) {
- dolog("File '%s' to be a .wav file\n", path);
- goto Fail;
- }
-
- /* check that this is a wave file */
- if ( hdr[0] != 'R' || hdr[1] != 'I' || hdr[2] != 'F' || hdr[3] != 'F' ||
- hdr[8] != 'W' || hdr[9] != 'A' || hdr[10]!= 'V' || hdr[11]!= 'E' ||
- hdr[12]!= 'f' || hdr[13]!= 'm' || hdr[14]!= 't' || hdr[15]!= ' ' ||
- hdr[40]!= 'd' || hdr[41]!= 'a' || hdr[42]!= 't' || hdr[43]!= 'a') {
- dolog("File '%s' is not a valid .wav file\n", path);
- goto Fail;
- }
-
- nchannels = le_read( hdr+22, 2 );
- freq = le_read( hdr+24, 4 );
- format = le_read( hdr+32, 2 );
- bits = le_read( hdr+34, 2 );
-
- wav->total_size = le_read( hdr+40, 4 );
-
- /* perform some sainty checks */
- switch (nchannels) {
- case 1:
- case 2: break;
- default:
- dolog("unsupported number of channels (%d) in '%s'\n",
- nchannels, path);
- goto Fail;
- }
-
- switch (format) {
- case 1:
- case 2:
- case 4: break;
- default:
- dolog("unsupported bytes per sample (%d) in '%s'\n",
- format, path);
- goto Fail;
- }
-
- if (format*8/nchannels != bits) {
- dolog("invalid bits per sample (%d, expected %d) in '%s'\n",
- bits, format*8/nchannels, path);
- goto Fail;
- }
-
- wav_as.nchannels = nchannels;
- wav_as.fmt = (bits == 8) ? AUD_FMT_U8 : AUD_FMT_S16;
- wav_as.freq = freq;
- wav_as.endianness = 0; /* always little endian */
-
- audio_pcm_init_info (&hw->info, &wav_as);
-
- hw->samples = 1024;
- wav->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
- if (!wav->pcm_buf) {
- goto Fail;
- }
- return 0;
-
-Fail:
- qemu_fclose (wav->f);
- wav->f = NULL;
- return -1;
-}
-
-
-static void wav_in_fini (HWVoiceIn *hw)
-{
- WAVVoiceIn *wav = (WAVVoiceIn *) hw;
-
- if (!wav->f) {
- return;
- }
-
- qemu_fclose (wav->f);
- wav->f = NULL;
-
- qemu_free (wav->pcm_buf);
- wav->pcm_buf = NULL;
-}
-
-static int wav_in_run (HWVoiceIn *hw)
-{
- WAVVoiceIn* wav = (WAVVoiceIn *) hw;
- int wpos, live, decr, samples;
- uint8_t* src;
- st_sample_t* dst;
-
- int64_t now = qemu_get_clock (vm_clock);
- int64_t ticks = now - wav->old_ticks;
- int64_t bytes = (ticks * hw->info.bytes_per_second) / ticks_per_sec;
-
- if (bytes > INT_MAX) {
- samples = INT_MAX >> hw->info.shift;
- }
- else {
- samples = bytes >> hw->info.shift;
- }
-
- live = audio_pcm_hw_get_live_in (hw);
- if (!live) {
- return 0;
- }
-
- wav->old_ticks = now;
-
- decr = audio_MIN (live, samples);
- samples = decr;
- wpos = hw->wpos;
- while (samples) {
- int left_till_end_samples = hw->samples - wpos;
- int convert_samples = audio_MIN (samples, left_till_end_samples);
-
- dst = hw->conv_buf + wpos;
- src = advance (wav->pcm_buf, wpos << hw->info.shift);
-
- qemu_get_buffer (wav->f, src, convert_samples << hw->info.shift);
- memcpy (dst, src, convert_samples << hw->info.shift);
-
- wpos = (wpos + convert_samples) % hw->samples;
- samples -= convert_samples;
- wav->total_samples += convert_samples;
- }
-
- hw->wpos = wpos;
- return decr;
-}
-
-static int wav_in_read (SWVoiceIn *sw, void *buf, int len)
-{
- return audio_pcm_sw_read (sw, buf, len);
-}
-
-static int wav_in_ctl (HWVoiceIn *hw, int cmd, ...)
-{
- (void) hw;
- (void) cmd;
- return 0;
-}
-
-#endif /* WAV_AUDIO_IN */
-
-/** COMMON CODE
- **/
-static void *wav_audio_init (void)
-{
- return &conf_out;
-}
-
-static void wav_audio_fini (void *opaque)
-{
- (void) opaque;
- ldebug ("wav_fini");
-}
-
-struct audio_option wav_options[] = {
- {"FREQUENCY", AUD_OPT_INT, &conf_out.settings.freq,
- "Frequency", NULL, 0},
-
- {"FORMAT", AUD_OPT_FMT, &conf_out.settings.fmt,
- "Format", NULL, 0},
-
- {"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf_out.settings.nchannels,
- "Number of channels (1 - mono, 2 - stereo)", NULL, 0},
-
- {"PATH", AUD_OPT_STR, &conf_out.wav_path,
- "Path to output .wav file", NULL, 0},
-
-#if WAV_AUDIO_IN
- {"IN_PATH", AUD_OPT_STR, &conf_in.wav_path,
- "Path to input .wav file", NULL, 0},
-#endif
- {NULL, 0, NULL, NULL, NULL, 0}
-};
-
-struct audio_pcm_ops wav_pcm_ops = {
- wav_out_init,
- wav_out_fini,
- wav_out_run,
- wav_out_write,
- wav_out_ctl,
-
-#if WAV_AUDIO_IN
- wav_in_init,
- wav_in_fini,
- wav_in_run,
- wav_in_read,
- wav_in_ctl
-#else
- NULL,
- NULL,
- NULL,
- NULL,
- NULL
-#endif
-};
-
-struct audio_driver wav_audio_driver = {
- INIT_FIELD (name = ) "wav",
- INIT_FIELD (descr = )
- "WAV file read/write (www.wikipedia.org/wiki/WAV)",
- INIT_FIELD (options = ) wav_options,
- INIT_FIELD (init = ) wav_audio_init,
- INIT_FIELD (fini = ) wav_audio_fini,
- INIT_FIELD (pcm_ops = ) &wav_pcm_ops,
- INIT_FIELD (can_be_default = ) 0,
-#if WAV_AUDIO_IN
- INIT_FIELD (max_voices_in = ) 1,
- INIT_FIELD (max_voices_out = ) 1,
- INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut),
- INIT_FIELD (voice_size_in = ) sizeof (WAVVoiceIn)
-#else
- INIT_FIELD (max_voices_out = ) 1,
- INIT_FIELD (max_voices_in = ) 0,
- INIT_FIELD (voice_size_out = ) sizeof (WAVVoiceOut),
- INIT_FIELD (voice_size_in = ) 0
-#endif
-};