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/*
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* QEMU Audio subsystem
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*
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* Copyright (c) 2003-2005 Vassili Karpov (malc)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
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#define AUDIO_CAP "audio" |
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#include "audio_int.h" |
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/* #define DEBUG_PLIVE */
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/* #define DEBUG_LIVE */
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/* #define DEBUG_OUT */
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/* #define DEBUG_CAPTURE */
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#define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown" |
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static struct audio_driver *drvtab[] = { |
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#ifdef CONFIG_OSS
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&oss_audio_driver, |
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#endif
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#ifdef CONFIG_ALSA
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&alsa_audio_driver, |
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#endif
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#ifdef CONFIG_COREAUDIO
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&coreaudio_audio_driver, |
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#endif
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#ifdef CONFIG_DSOUND
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&dsound_audio_driver, |
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#endif
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#ifdef CONFIG_FMOD
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&fmod_audio_driver, |
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#endif
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#ifdef CONFIG_SDL
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&sdl_audio_driver, |
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#endif
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&no_audio_driver, |
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&wav_audio_driver |
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}; |
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struct fixed_settings {
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int enabled;
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int nb_voices;
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int greedy;
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audsettings_t settings; |
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}; |
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static struct { |
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struct fixed_settings fixed_out;
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struct fixed_settings fixed_in;
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union {
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int hz;
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int64_t ticks; |
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} period; |
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int plive;
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int log_to_monitor;
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} conf = { |
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{ /* DAC fixed settings */
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1, /* enabled */ |
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1, /* nb_voices */ |
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1, /* greedy */ |
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{ |
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44100, /* freq */ |
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2, /* nchannels */ |
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AUD_FMT_S16, /* fmt */
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AUDIO_HOST_ENDIANNESS |
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} |
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}, |
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{ /* ADC fixed settings */
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1, /* enabled */ |
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1, /* nb_voices */ |
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1, /* greedy */ |
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{ |
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44100, /* freq */ |
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2, /* nchannels */ |
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AUD_FMT_S16, /* fmt */
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AUDIO_HOST_ENDIANNESS |
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} |
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}, |
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{ 0 }, /* period */ |
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0, /* plive */ |
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0 /* log_to_monitor */ |
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}; |
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static AudioState glob_audio_state;
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volume_t nominal_volume = { |
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0,
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#ifdef FLOAT_MIXENG
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1.0, |
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1.0 |
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#else
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UINT_MAX, |
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UINT_MAX |
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#endif
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}; |
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/* http://www.df.lth.se/~john_e/gems/gem002d.html */
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/* http://www.multi-platforms.com/Tips/PopCount.htm */
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uint32_t popcount (uint32_t u) |
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{ |
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u = ((u&0x55555555) + ((u>>1)&0x55555555)); |
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u = ((u&0x33333333) + ((u>>2)&0x33333333)); |
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u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f)); |
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u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff)); |
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u = ( u&0x0000ffff) + (u>>16); |
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return u;
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} |
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inline uint32_t lsbindex (uint32_t u)
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{ |
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return popcount ((u&-u)-1); |
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} |
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#ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
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#error No its not
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#else
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int audio_bug (const char *funcname, int cond) |
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{ |
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if (cond) {
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static int shown; |
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AUD_log (NULL, "A bug was just triggered in %s\n", funcname); |
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if (!shown) {
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shown = 1;
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AUD_log (NULL, "Save all your work and restart without audio\n"); |
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AUD_log (NULL, "Please send bug report to malc@pulsesoft.com\n"); |
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AUD_log (NULL, "I am sorry\n"); |
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} |
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AUD_log (NULL, "Context:\n"); |
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#if defined AUDIO_BREAKPOINT_ON_BUG
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# if defined HOST_I386
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# if defined __GNUC__
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__asm__ ("int3");
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# elif defined _MSC_VER
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_asm _emit 0xcc;
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# else
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abort (); |
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# endif
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# else
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abort (); |
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# endif
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#endif
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} |
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return cond;
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} |
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#endif
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static inline int audio_bits_to_index (int bits) |
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{ |
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switch (bits) {
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case 8: |
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return 0; |
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case 16: |
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return 1; |
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case 32: |
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return 2; |
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default:
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audio_bug ("bits_to_index", 1); |
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AUD_log (NULL, "invalid bits %d\n", bits); |
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return 0; |
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} |
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} |
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void *audio_calloc (const char *funcname, int nmemb, size_t size) |
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{ |
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int cond;
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size_t len; |
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len = nmemb * size; |
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cond = !nmemb || !size; |
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cond |= nmemb < 0;
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cond |= len < size; |
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if (audio_bug ("audio_calloc", cond)) { |
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AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n", |
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funcname); |
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AUD_log (NULL, "nmemb=%d size=%zu (len=%zu)\n", nmemb, size, len); |
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return NULL; |
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} |
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return qemu_mallocz (len);
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} |
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static char *audio_alloc_prefix (const char *s) |
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{ |
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const char qemu_prefix[] = "QEMU_"; |
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size_t len; |
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char *r;
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if (!s) {
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return NULL; |
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} |
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len = strlen (s); |
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r = qemu_malloc (len + sizeof (qemu_prefix));
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if (r) {
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size_t i; |
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char *u = r + sizeof (qemu_prefix) - 1; |
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strcpy (r, qemu_prefix); |
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strcat (r, s); |
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for (i = 0; i < len; ++i) { |
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u[i] = toupper (u[i]); |
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} |
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} |
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return r;
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} |
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const char *audio_audfmt_to_string (audfmt_e fmt) |
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{ |
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switch (fmt) {
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case AUD_FMT_U8:
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return "U8"; |
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case AUD_FMT_U16:
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return "U16"; |
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case AUD_FMT_S8:
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return "S8"; |
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case AUD_FMT_S16:
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return "S16"; |
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case AUD_FMT_U32:
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return "U32"; |
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case AUD_FMT_S32:
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return "S32"; |
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} |
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dolog ("Bogus audfmt %d returning S16\n", fmt);
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return "S16"; |
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} |
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audfmt_e audio_string_to_audfmt (const char *s, audfmt_e defval, int *defaultp) |
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{ |
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if (!strcasecmp (s, "u8")) { |
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*defaultp = 0;
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return AUD_FMT_U8;
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} |
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else if (!strcasecmp (s, "u16")) { |
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*defaultp = 0;
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return AUD_FMT_U16;
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} |
273 |
else if (!strcasecmp (s, "u32")) { |
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*defaultp = 0;
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return AUD_FMT_U32;
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} |
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else if (!strcasecmp (s, "s8")) { |
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*defaultp = 0;
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return AUD_FMT_S8;
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} |
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else if (!strcasecmp (s, "s16")) { |
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*defaultp = 0;
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return AUD_FMT_S16;
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} |
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else if (!strcasecmp (s, "s32")) { |
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*defaultp = 0;
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return AUD_FMT_S32;
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} |
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else {
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dolog ("Bogus audio format `%s' using %s\n",
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s, audio_audfmt_to_string (defval)); |
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*defaultp = 1;
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return defval;
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} |
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} |
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static audfmt_e audio_get_conf_fmt (const char *envname, |
298 |
audfmt_e defval, |
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int *defaultp)
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{ |
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const char *var = getenv (envname); |
302 |
if (!var) {
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*defaultp = 1;
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return defval;
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} |
306 |
return audio_string_to_audfmt (var, defval, defaultp);
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} |
308 |
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static int audio_get_conf_int (const char *key, int defval, int *defaultp) |
310 |
{ |
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int val;
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char *strval;
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strval = getenv (key); |
315 |
if (strval) {
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*defaultp = 0;
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val = atoi (strval); |
318 |
return val;
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} |
320 |
else {
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*defaultp = 1;
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return defval;
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} |
324 |
} |
325 |
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326 |
static const char *audio_get_conf_str (const char *key, |
327 |
const char *defval, |
328 |
int *defaultp)
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{ |
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const char *val = getenv (key); |
331 |
if (!val) {
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*defaultp = 1;
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return defval;
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} |
335 |
else {
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*defaultp = 0;
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return val;
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} |
339 |
} |
340 |
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341 |
void AUD_vlog (const char *cap, const char *fmt, va_list ap) |
342 |
{ |
343 |
if (conf.log_to_monitor) {
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344 |
if (cap) {
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term_printf ("%s: ", cap);
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} |
347 |
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term_vprintf (fmt, ap); |
349 |
} |
350 |
else {
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if (cap) {
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fprintf (stderr, "%s: ", cap);
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} |
354 |
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vfprintf (stderr, fmt, ap); |
356 |
} |
357 |
} |
358 |
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359 |
void AUD_log (const char *cap, const char *fmt, ...) |
360 |
{ |
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va_list ap; |
362 |
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va_start (ap, fmt); |
364 |
AUD_vlog (cap, fmt, ap); |
365 |
va_end (ap); |
366 |
} |
367 |
|
368 |
static void audio_print_options (const char *prefix, |
369 |
struct audio_option *opt)
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{ |
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char *uprefix;
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372 |
|
373 |
if (!prefix) {
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374 |
dolog ("No prefix specified\n");
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return;
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376 |
} |
377 |
|
378 |
if (!opt) {
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379 |
dolog ("No options\n");
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return;
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381 |
} |
382 |
|
383 |
uprefix = audio_alloc_prefix (prefix); |
384 |
|
385 |
for (; opt->name; opt++) {
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386 |
const char *state = "default"; |
387 |
printf (" %s_%s: ", uprefix, opt->name);
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388 |
|
389 |
if (opt->overriddenp && *opt->overriddenp) {
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390 |
state = "current";
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391 |
} |
392 |
|
393 |
switch (opt->tag) {
|
394 |
case AUD_OPT_BOOL:
|
395 |
{ |
396 |
int *intp = opt->valp;
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397 |
printf ("boolean, %s = %d\n", state, *intp ? 1 : 0); |
398 |
} |
399 |
break;
|
400 |
|
401 |
case AUD_OPT_INT:
|
402 |
{ |
403 |
int *intp = opt->valp;
|
404 |
printf ("integer, %s = %d\n", state, *intp);
|
405 |
} |
406 |
break;
|
407 |
|
408 |
case AUD_OPT_FMT:
|
409 |
{ |
410 |
audfmt_e *fmtp = opt->valp; |
411 |
printf ( |
412 |
"format, %s = %s, (one of: U8 S8 U16 S16)\n",
|
413 |
state, |
414 |
audio_audfmt_to_string (*fmtp) |
415 |
); |
416 |
} |
417 |
break;
|
418 |
|
419 |
case AUD_OPT_STR:
|
420 |
{ |
421 |
const char **strp = opt->valp; |
422 |
printf ("string, %s = %s\n",
|
423 |
state, |
424 |
*strp ? *strp : "(not set)");
|
425 |
} |
426 |
break;
|
427 |
|
428 |
default:
|
429 |
printf ("???\n");
|
430 |
dolog ("Bad value tag for option %s_%s %d\n",
|
431 |
uprefix, opt->name, opt->tag); |
432 |
break;
|
433 |
} |
434 |
printf (" %s\n", opt->descr);
|
435 |
} |
436 |
|
437 |
qemu_free (uprefix); |
438 |
} |
439 |
|
440 |
static void audio_process_options (const char *prefix, |
441 |
struct audio_option *opt)
|
442 |
{ |
443 |
char *optname;
|
444 |
const char qemu_prefix[] = "QEMU_"; |
445 |
size_t preflen; |
446 |
|
447 |
if (audio_bug (AUDIO_FUNC, !prefix)) {
|
448 |
dolog ("prefix = NULL\n");
|
449 |
return;
|
450 |
} |
451 |
|
452 |
if (audio_bug (AUDIO_FUNC, !opt)) {
|
453 |
dolog ("opt = NULL\n");
|
454 |
return;
|
455 |
} |
456 |
|
457 |
preflen = strlen (prefix); |
458 |
|
459 |
for (; opt->name; opt++) {
|
460 |
size_t len, i; |
461 |
int def;
|
462 |
|
463 |
if (!opt->valp) {
|
464 |
dolog ("Option value pointer for `%s' is not set\n",
|
465 |
opt->name); |
466 |
continue;
|
467 |
} |
468 |
|
469 |
len = strlen (opt->name); |
470 |
/* len of opt->name + len of prefix + size of qemu_prefix
|
471 |
* (includes trailing zero) + zero + underscore (on behalf of
|
472 |
* sizeof) */
|
473 |
optname = qemu_malloc (len + preflen + sizeof (qemu_prefix) + 1); |
474 |
if (!optname) {
|
475 |
dolog ("Could not allocate memory for option name `%s'\n",
|
476 |
opt->name); |
477 |
continue;
|
478 |
} |
479 |
|
480 |
strcpy (optname, qemu_prefix); |
481 |
|
482 |
/* copy while upper-casing, including trailing zero */
|
483 |
for (i = 0; i <= preflen; ++i) { |
484 |
optname[i + sizeof (qemu_prefix) - 1] = toupper (prefix[i]); |
485 |
} |
486 |
strcat (optname, "_");
|
487 |
strcat (optname, opt->name); |
488 |
|
489 |
def = 1;
|
490 |
switch (opt->tag) {
|
491 |
case AUD_OPT_BOOL:
|
492 |
case AUD_OPT_INT:
|
493 |
{ |
494 |
int *intp = opt->valp;
|
495 |
*intp = audio_get_conf_int (optname, *intp, &def); |
496 |
} |
497 |
break;
|
498 |
|
499 |
case AUD_OPT_FMT:
|
500 |
{ |
501 |
audfmt_e *fmtp = opt->valp; |
502 |
*fmtp = audio_get_conf_fmt (optname, *fmtp, &def); |
503 |
} |
504 |
break;
|
505 |
|
506 |
case AUD_OPT_STR:
|
507 |
{ |
508 |
const char **strp = opt->valp; |
509 |
*strp = audio_get_conf_str (optname, *strp, &def); |
510 |
} |
511 |
break;
|
512 |
|
513 |
default:
|
514 |
dolog ("Bad value tag for option `%s' - %d\n",
|
515 |
optname, opt->tag); |
516 |
break;
|
517 |
} |
518 |
|
519 |
if (!opt->overriddenp) {
|
520 |
opt->overriddenp = &opt->overridden; |
521 |
} |
522 |
*opt->overriddenp = !def; |
523 |
qemu_free (optname); |
524 |
} |
525 |
} |
526 |
|
527 |
static void audio_print_settings (audsettings_t *as) |
528 |
{ |
529 |
dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels);
|
530 |
|
531 |
switch (as->fmt) {
|
532 |
case AUD_FMT_S8:
|
533 |
AUD_log (NULL, "S8"); |
534 |
break;
|
535 |
case AUD_FMT_U8:
|
536 |
AUD_log (NULL, "U8"); |
537 |
break;
|
538 |
case AUD_FMT_S16:
|
539 |
AUD_log (NULL, "S16"); |
540 |
break;
|
541 |
case AUD_FMT_U16:
|
542 |
AUD_log (NULL, "U16"); |
543 |
break;
|
544 |
default:
|
545 |
AUD_log (NULL, "invalid(%d)", as->fmt); |
546 |
break;
|
547 |
} |
548 |
|
549 |
AUD_log (NULL, " endianness="); |
550 |
switch (as->endianness) {
|
551 |
case 0: |
552 |
AUD_log (NULL, "little"); |
553 |
break;
|
554 |
case 1: |
555 |
AUD_log (NULL, "big"); |
556 |
break;
|
557 |
default:
|
558 |
AUD_log (NULL, "invalid"); |
559 |
break;
|
560 |
} |
561 |
AUD_log (NULL, "\n"); |
562 |
} |
563 |
|
564 |
static int audio_validate_settings (audsettings_t *as) |
565 |
{ |
566 |
int invalid;
|
567 |
|
568 |
invalid = as->nchannels != 1 && as->nchannels != 2; |
569 |
invalid |= as->endianness != 0 && as->endianness != 1; |
570 |
|
571 |
switch (as->fmt) {
|
572 |
case AUD_FMT_S8:
|
573 |
case AUD_FMT_U8:
|
574 |
case AUD_FMT_S16:
|
575 |
case AUD_FMT_U16:
|
576 |
case AUD_FMT_S32:
|
577 |
case AUD_FMT_U32:
|
578 |
break;
|
579 |
default:
|
580 |
invalid = 1;
|
581 |
break;
|
582 |
} |
583 |
|
584 |
invalid |= as->freq <= 0;
|
585 |
return invalid ? -1 : 0; |
586 |
} |
587 |
|
588 |
static int audio_pcm_info_eq (struct audio_pcm_info *info, audsettings_t *as) |
589 |
{ |
590 |
int bits = 8, sign = 0; |
591 |
|
592 |
switch (as->fmt) {
|
593 |
case AUD_FMT_S8:
|
594 |
sign = 1;
|
595 |
case AUD_FMT_U8:
|
596 |
break;
|
597 |
|
598 |
case AUD_FMT_S16:
|
599 |
sign = 1;
|
600 |
case AUD_FMT_U16:
|
601 |
bits = 16;
|
602 |
break;
|
603 |
|
604 |
case AUD_FMT_S32:
|
605 |
sign = 1;
|
606 |
case AUD_FMT_U32:
|
607 |
bits = 32;
|
608 |
break;
|
609 |
} |
610 |
return info->freq == as->freq
|
611 |
&& info->nchannels == as->nchannels |
612 |
&& info->sign == sign |
613 |
&& info->bits == bits |
614 |
&& info->swap_endianness == (as->endianness != AUDIO_HOST_ENDIANNESS); |
615 |
} |
616 |
|
617 |
void audio_pcm_init_info (struct audio_pcm_info *info, audsettings_t *as) |
618 |
{ |
619 |
int bits = 8, sign = 0, shift = 0; |
620 |
|
621 |
switch (as->fmt) {
|
622 |
case AUD_FMT_S8:
|
623 |
sign = 1;
|
624 |
case AUD_FMT_U8:
|
625 |
break;
|
626 |
|
627 |
case AUD_FMT_S16:
|
628 |
sign = 1;
|
629 |
case AUD_FMT_U16:
|
630 |
bits = 16;
|
631 |
shift = 1;
|
632 |
break;
|
633 |
|
634 |
case AUD_FMT_S32:
|
635 |
sign = 1;
|
636 |
case AUD_FMT_U32:
|
637 |
bits = 32;
|
638 |
shift = 2;
|
639 |
break;
|
640 |
} |
641 |
|
642 |
info->freq = as->freq; |
643 |
info->bits = bits; |
644 |
info->sign = sign; |
645 |
info->nchannels = as->nchannels; |
646 |
info->shift = (as->nchannels == 2) + shift;
|
647 |
info->align = (1 << info->shift) - 1; |
648 |
info->bytes_per_second = info->freq << info->shift; |
649 |
info->swap_endianness = (as->endianness != AUDIO_HOST_ENDIANNESS); |
650 |
} |
651 |
|
652 |
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len) |
653 |
{ |
654 |
if (!len) {
|
655 |
return;
|
656 |
} |
657 |
|
658 |
if (info->sign) {
|
659 |
memset (buf, 0x00, len << info->shift);
|
660 |
} |
661 |
else {
|
662 |
switch (info->bits) {
|
663 |
case 8: |
664 |
memset (buf, 0x80, len << info->shift);
|
665 |
break;
|
666 |
|
667 |
case 16: |
668 |
{ |
669 |
int i;
|
670 |
uint16_t *p = buf; |
671 |
int shift = info->nchannels - 1; |
672 |
short s = INT16_MAX;
|
673 |
|
674 |
if (info->swap_endianness) {
|
675 |
s = bswap16 (s); |
676 |
} |
677 |
|
678 |
for (i = 0; i < len << shift; i++) { |
679 |
p[i] = s; |
680 |
} |
681 |
} |
682 |
break;
|
683 |
|
684 |
case 32: |
685 |
{ |
686 |
int i;
|
687 |
uint32_t *p = buf; |
688 |
int shift = info->nchannels - 1; |
689 |
int32_t s = INT32_MAX; |
690 |
|
691 |
if (info->swap_endianness) {
|
692 |
s = bswap32 (s); |
693 |
} |
694 |
|
695 |
for (i = 0; i < len << shift; i++) { |
696 |
p[i] = s; |
697 |
} |
698 |
} |
699 |
break;
|
700 |
|
701 |
default:
|
702 |
AUD_log (NULL, "audio_pcm_info_clear_buf: invalid bits %d\n", |
703 |
info->bits); |
704 |
break;
|
705 |
} |
706 |
} |
707 |
} |
708 |
|
709 |
/*
|
710 |
* Capture
|
711 |
*/
|
712 |
static void noop_conv (st_sample_t *dst, const void *src, |
713 |
int samples, volume_t *vol)
|
714 |
{ |
715 |
(void) src;
|
716 |
(void) dst;
|
717 |
(void) samples;
|
718 |
(void) vol;
|
719 |
} |
720 |
|
721 |
static CaptureVoiceOut *audio_pcm_capture_find_specific (
|
722 |
AudioState *s, |
723 |
audsettings_t *as |
724 |
) |
725 |
{ |
726 |
CaptureVoiceOut *cap; |
727 |
|
728 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
729 |
if (audio_pcm_info_eq (&cap->hw.info, as)) {
|
730 |
return cap;
|
731 |
} |
732 |
} |
733 |
return NULL; |
734 |
} |
735 |
|
736 |
static void audio_notify_capture (CaptureVoiceOut *cap, audcnotification_e cmd) |
737 |
{ |
738 |
struct capture_callback *cb;
|
739 |
|
740 |
#ifdef DEBUG_CAPTURE
|
741 |
dolog ("notification %d sent\n", cmd);
|
742 |
#endif
|
743 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
744 |
cb->ops.notify (cb->opaque, cmd); |
745 |
} |
746 |
} |
747 |
|
748 |
static void audio_capture_maybe_changed (CaptureVoiceOut *cap, int enabled) |
749 |
{ |
750 |
if (cap->hw.enabled != enabled) {
|
751 |
audcnotification_e cmd; |
752 |
cap->hw.enabled = enabled; |
753 |
cmd = enabled ? AUD_CNOTIFY_ENABLE : AUD_CNOTIFY_DISABLE; |
754 |
audio_notify_capture (cap, cmd); |
755 |
} |
756 |
} |
757 |
|
758 |
static void audio_recalc_and_notify_capture (CaptureVoiceOut *cap) |
759 |
{ |
760 |
HWVoiceOut *hw = &cap->hw; |
761 |
SWVoiceOut *sw; |
762 |
int enabled = 0; |
763 |
|
764 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
765 |
if (sw->active) {
|
766 |
enabled = 1;
|
767 |
break;
|
768 |
} |
769 |
} |
770 |
audio_capture_maybe_changed (cap, enabled); |
771 |
} |
772 |
|
773 |
static void audio_detach_capture (HWVoiceOut *hw) |
774 |
{ |
775 |
SWVoiceCap *sc = hw->cap_head.lh_first; |
776 |
|
777 |
while (sc) {
|
778 |
SWVoiceCap *sc1 = sc->entries.le_next; |
779 |
SWVoiceOut *sw = &sc->sw; |
780 |
CaptureVoiceOut *cap = sc->cap; |
781 |
int was_active = sw->active;
|
782 |
|
783 |
if (sw->rate) {
|
784 |
st_rate_stop (sw->rate); |
785 |
sw->rate = NULL;
|
786 |
} |
787 |
|
788 |
LIST_REMOVE (sw, entries); |
789 |
LIST_REMOVE (sc, entries); |
790 |
qemu_free (sc); |
791 |
if (was_active) {
|
792 |
/* We have removed soft voice from the capture:
|
793 |
this might have changed the overall status of the capture
|
794 |
since this might have been the only active voice */
|
795 |
audio_recalc_and_notify_capture (cap); |
796 |
} |
797 |
sc = sc1; |
798 |
} |
799 |
} |
800 |
|
801 |
static int audio_attach_capture (AudioState *s, HWVoiceOut *hw) |
802 |
{ |
803 |
CaptureVoiceOut *cap; |
804 |
|
805 |
audio_detach_capture (hw); |
806 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
807 |
SWVoiceCap *sc; |
808 |
SWVoiceOut *sw; |
809 |
HWVoiceOut *hw_cap = &cap->hw; |
810 |
|
811 |
sc = audio_calloc (AUDIO_FUNC, 1, sizeof (*sc)); |
812 |
if (!sc) {
|
813 |
dolog ("Could not allocate soft capture voice (%zu bytes)\n",
|
814 |
sizeof (*sc));
|
815 |
return -1; |
816 |
} |
817 |
|
818 |
sc->cap = cap; |
819 |
sw = &sc->sw; |
820 |
sw->hw = hw_cap; |
821 |
sw->info = hw->info; |
822 |
sw->empty = 1;
|
823 |
sw->active = hw->enabled; |
824 |
sw->conv = noop_conv; |
825 |
sw->ratio = ((int64_t) hw_cap->info.freq << 32) / sw->info.freq;
|
826 |
sw->rate = st_rate_start (sw->info.freq, hw_cap->info.freq); |
827 |
if (!sw->rate) {
|
828 |
dolog ("Could not start rate conversion for `%s'\n", SW_NAME (sw));
|
829 |
qemu_free (sw); |
830 |
return -1; |
831 |
} |
832 |
LIST_INSERT_HEAD (&hw_cap->sw_head, sw, entries); |
833 |
LIST_INSERT_HEAD (&hw->cap_head, sc, entries); |
834 |
#ifdef DEBUG_CAPTURE
|
835 |
asprintf (&sw->name, "for %p %d,%d,%d",
|
836 |
hw, sw->info.freq, sw->info.bits, sw->info.nchannels); |
837 |
dolog ("Added %s active = %d\n", sw->name, sw->active);
|
838 |
#endif
|
839 |
if (sw->active) {
|
840 |
audio_capture_maybe_changed (cap, 1);
|
841 |
} |
842 |
} |
843 |
return 0; |
844 |
} |
845 |
|
846 |
/*
|
847 |
* Hard voice (capture)
|
848 |
*/
|
849 |
static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) |
850 |
{ |
851 |
SWVoiceIn *sw; |
852 |
int m = hw->total_samples_captured;
|
853 |
|
854 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
855 |
if (sw->active) {
|
856 |
m = audio_MIN (m, sw->total_hw_samples_acquired); |
857 |
} |
858 |
} |
859 |
return m;
|
860 |
} |
861 |
|
862 |
int audio_pcm_hw_get_live_in (HWVoiceIn *hw)
|
863 |
{ |
864 |
int live = hw->total_samples_captured - audio_pcm_hw_find_min_in (hw);
|
865 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
866 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
867 |
return 0; |
868 |
} |
869 |
return live;
|
870 |
} |
871 |
|
872 |
/*
|
873 |
* Soft voice (capture)
|
874 |
*/
|
875 |
static int audio_pcm_sw_get_rpos_in (SWVoiceIn *sw) |
876 |
{ |
877 |
HWVoiceIn *hw = sw->hw; |
878 |
int live = hw->total_samples_captured - sw->total_hw_samples_acquired;
|
879 |
int rpos;
|
880 |
|
881 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
882 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
883 |
return 0; |
884 |
} |
885 |
|
886 |
rpos = hw->wpos - live; |
887 |
if (rpos >= 0) { |
888 |
return rpos;
|
889 |
} |
890 |
else {
|
891 |
return hw->samples + rpos;
|
892 |
} |
893 |
} |
894 |
|
895 |
int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) |
896 |
{ |
897 |
HWVoiceIn *hw = sw->hw; |
898 |
int samples, live, ret = 0, swlim, isamp, osamp, rpos, total = 0; |
899 |
st_sample_t *src, *dst = sw->buf; |
900 |
|
901 |
rpos = audio_pcm_sw_get_rpos_in (sw) % hw->samples; |
902 |
|
903 |
live = hw->total_samples_captured - sw->total_hw_samples_acquired; |
904 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
905 |
dolog ("live_in=%d hw->samples=%d\n", live, hw->samples);
|
906 |
return 0; |
907 |
} |
908 |
|
909 |
samples = size >> sw->info.shift; |
910 |
if (!live) {
|
911 |
return 0; |
912 |
} |
913 |
|
914 |
swlim = (live * sw->ratio) >> 32;
|
915 |
swlim = audio_MIN (swlim, samples); |
916 |
|
917 |
while (swlim) {
|
918 |
src = hw->conv_buf + rpos; |
919 |
isamp = hw->wpos - rpos; |
920 |
/* XXX: <= ? */
|
921 |
if (isamp <= 0) { |
922 |
isamp = hw->samples - rpos; |
923 |
} |
924 |
|
925 |
if (!isamp) {
|
926 |
break;
|
927 |
} |
928 |
osamp = swlim; |
929 |
|
930 |
if (audio_bug (AUDIO_FUNC, osamp < 0)) { |
931 |
dolog ("osamp=%d\n", osamp);
|
932 |
return 0; |
933 |
} |
934 |
|
935 |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
936 |
swlim -= osamp; |
937 |
rpos = (rpos + isamp) % hw->samples; |
938 |
dst += osamp; |
939 |
ret += osamp; |
940 |
total += isamp; |
941 |
} |
942 |
|
943 |
sw->clip (buf, sw->buf, ret); |
944 |
sw->total_hw_samples_acquired += total; |
945 |
return ret << sw->info.shift;
|
946 |
} |
947 |
|
948 |
/*
|
949 |
* Hard voice (playback)
|
950 |
*/
|
951 |
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
952 |
{ |
953 |
SWVoiceOut *sw; |
954 |
int m = INT_MAX;
|
955 |
int nb_live = 0; |
956 |
|
957 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
958 |
if (sw->active || !sw->empty) {
|
959 |
m = audio_MIN (m, sw->total_hw_samples_mixed); |
960 |
nb_live += 1;
|
961 |
} |
962 |
} |
963 |
|
964 |
*nb_livep = nb_live; |
965 |
return m;
|
966 |
} |
967 |
|
968 |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live) |
969 |
{ |
970 |
int smin;
|
971 |
|
972 |
smin = audio_pcm_hw_find_min_out (hw, nb_live); |
973 |
|
974 |
if (!*nb_live) {
|
975 |
return 0; |
976 |
} |
977 |
else {
|
978 |
int live = smin;
|
979 |
|
980 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
981 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
982 |
return 0; |
983 |
} |
984 |
return live;
|
985 |
} |
986 |
} |
987 |
|
988 |
int audio_pcm_hw_get_live_out (HWVoiceOut *hw)
|
989 |
{ |
990 |
int nb_live;
|
991 |
int live;
|
992 |
|
993 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
994 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
995 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
996 |
return 0; |
997 |
} |
998 |
return live;
|
999 |
} |
1000 |
|
1001 |
/*
|
1002 |
* Soft voice (playback)
|
1003 |
*/
|
1004 |
int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) |
1005 |
{ |
1006 |
int hwsamples, samples, isamp, osamp, wpos, live, dead, left, swlim, blck;
|
1007 |
int ret = 0, pos = 0, total = 0; |
1008 |
|
1009 |
if (!sw) {
|
1010 |
return size;
|
1011 |
} |
1012 |
|
1013 |
hwsamples = sw->hw->samples; |
1014 |
|
1015 |
live = sw->total_hw_samples_mixed; |
1016 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hwsamples)){ |
1017 |
dolog ("live=%d hw->samples=%d\n", live, hwsamples);
|
1018 |
return 0; |
1019 |
} |
1020 |
|
1021 |
if (live == hwsamples) {
|
1022 |
#ifdef DEBUG_OUT
|
1023 |
dolog ("%s is full %d\n", sw->name, live);
|
1024 |
#endif
|
1025 |
return 0; |
1026 |
} |
1027 |
|
1028 |
wpos = (sw->hw->rpos + live) % hwsamples; |
1029 |
samples = size >> sw->info.shift; |
1030 |
|
1031 |
dead = hwsamples - live; |
1032 |
swlim = ((int64_t) dead << 32) / sw->ratio;
|
1033 |
swlim = audio_MIN (swlim, samples); |
1034 |
if (swlim) {
|
1035 |
sw->conv (sw->buf, buf, swlim, &sw->vol); |
1036 |
} |
1037 |
|
1038 |
while (swlim) {
|
1039 |
dead = hwsamples - live; |
1040 |
left = hwsamples - wpos; |
1041 |
blck = audio_MIN (dead, left); |
1042 |
if (!blck) {
|
1043 |
break;
|
1044 |
} |
1045 |
isamp = swlim; |
1046 |
osamp = blck; |
1047 |
st_rate_flow_mix ( |
1048 |
sw->rate, |
1049 |
sw->buf + pos, |
1050 |
sw->hw->mix_buf + wpos, |
1051 |
&isamp, |
1052 |
&osamp |
1053 |
); |
1054 |
ret += isamp; |
1055 |
swlim -= isamp; |
1056 |
pos += isamp; |
1057 |
live += osamp; |
1058 |
wpos = (wpos + osamp) % hwsamples; |
1059 |
total += osamp; |
1060 |
} |
1061 |
|
1062 |
sw->total_hw_samples_mixed += total; |
1063 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1064 |
|
1065 |
#ifdef DEBUG_OUT
|
1066 |
dolog ( |
1067 |
"%s: write size %d ret %d total sw %d\n",
|
1068 |
SW_NAME (sw), |
1069 |
size >> sw->info.shift, |
1070 |
ret, |
1071 |
sw->total_hw_samples_mixed |
1072 |
); |
1073 |
#endif
|
1074 |
|
1075 |
return ret << sw->info.shift;
|
1076 |
} |
1077 |
|
1078 |
#ifdef DEBUG_AUDIO
|
1079 |
static void audio_pcm_print_info (const char *cap, struct audio_pcm_info *info) |
1080 |
{ |
1081 |
dolog ("%s: bits %d, sign %d, freq %d, nchan %d\n",
|
1082 |
cap, info->bits, info->sign, info->freq, info->nchannels); |
1083 |
} |
1084 |
#endif
|
1085 |
|
1086 |
#define DAC
|
1087 |
#include "audio_template.h" |
1088 |
#undef DAC
|
1089 |
#include "audio_template.h" |
1090 |
|
1091 |
int AUD_write (SWVoiceOut *sw, void *buf, int size) |
1092 |
{ |
1093 |
int bytes;
|
1094 |
|
1095 |
if (!sw) {
|
1096 |
/* XXX: Consider options */
|
1097 |
return size;
|
1098 |
} |
1099 |
|
1100 |
if (!sw->hw->enabled) {
|
1101 |
dolog ("Writing to disabled voice %s\n", SW_NAME (sw));
|
1102 |
return 0; |
1103 |
} |
1104 |
|
1105 |
bytes = sw->hw->pcm_ops->write (sw, buf, size); |
1106 |
return bytes;
|
1107 |
} |
1108 |
|
1109 |
int AUD_read (SWVoiceIn *sw, void *buf, int size) |
1110 |
{ |
1111 |
int bytes;
|
1112 |
|
1113 |
if (!sw) {
|
1114 |
/* XXX: Consider options */
|
1115 |
return size;
|
1116 |
} |
1117 |
|
1118 |
if (!sw->hw->enabled) {
|
1119 |
dolog ("Reading from disabled voice %s\n", SW_NAME (sw));
|
1120 |
return 0; |
1121 |
} |
1122 |
|
1123 |
bytes = sw->hw->pcm_ops->read (sw, buf, size); |
1124 |
return bytes;
|
1125 |
} |
1126 |
|
1127 |
int AUD_get_buffer_size_out (SWVoiceOut *sw)
|
1128 |
{ |
1129 |
return sw->hw->samples << sw->hw->info.shift;
|
1130 |
} |
1131 |
|
1132 |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
1133 |
{ |
1134 |
HWVoiceOut *hw; |
1135 |
|
1136 |
if (!sw) {
|
1137 |
return;
|
1138 |
} |
1139 |
|
1140 |
hw = sw->hw; |
1141 |
if (sw->active != on) {
|
1142 |
SWVoiceOut *temp_sw; |
1143 |
SWVoiceCap *sc; |
1144 |
|
1145 |
if (on) {
|
1146 |
hw->pending_disable = 0;
|
1147 |
if (!hw->enabled) {
|
1148 |
hw->enabled = 1;
|
1149 |
hw->pcm_ops->ctl_out (hw, VOICE_ENABLE); |
1150 |
} |
1151 |
} |
1152 |
else {
|
1153 |
if (hw->enabled) {
|
1154 |
int nb_active = 0; |
1155 |
|
1156 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1157 |
temp_sw = temp_sw->entries.le_next) { |
1158 |
nb_active += temp_sw->active != 0;
|
1159 |
} |
1160 |
|
1161 |
hw->pending_disable = nb_active == 1;
|
1162 |
} |
1163 |
} |
1164 |
|
1165 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1166 |
sc->sw.active = hw->enabled; |
1167 |
if (hw->enabled) {
|
1168 |
audio_capture_maybe_changed (sc->cap, 1);
|
1169 |
} |
1170 |
} |
1171 |
sw->active = on; |
1172 |
} |
1173 |
} |
1174 |
|
1175 |
void AUD_set_active_in (SWVoiceIn *sw, int on) |
1176 |
{ |
1177 |
HWVoiceIn *hw; |
1178 |
|
1179 |
if (!sw) {
|
1180 |
return;
|
1181 |
} |
1182 |
|
1183 |
hw = sw->hw; |
1184 |
if (sw->active != on) {
|
1185 |
SWVoiceIn *temp_sw; |
1186 |
|
1187 |
if (on) {
|
1188 |
if (!hw->enabled) {
|
1189 |
hw->enabled = 1;
|
1190 |
hw->pcm_ops->ctl_in (hw, VOICE_ENABLE); |
1191 |
} |
1192 |
sw->total_hw_samples_acquired = hw->total_samples_captured; |
1193 |
} |
1194 |
else {
|
1195 |
if (hw->enabled) {
|
1196 |
int nb_active = 0; |
1197 |
|
1198 |
for (temp_sw = hw->sw_head.lh_first; temp_sw;
|
1199 |
temp_sw = temp_sw->entries.le_next) { |
1200 |
nb_active += temp_sw->active != 0;
|
1201 |
} |
1202 |
|
1203 |
if (nb_active == 1) { |
1204 |
hw->enabled = 0;
|
1205 |
hw->pcm_ops->ctl_in (hw, VOICE_DISABLE); |
1206 |
} |
1207 |
} |
1208 |
} |
1209 |
sw->active = on; |
1210 |
} |
1211 |
} |
1212 |
|
1213 |
static int audio_get_avail (SWVoiceIn *sw) |
1214 |
{ |
1215 |
int live;
|
1216 |
|
1217 |
if (!sw) {
|
1218 |
return 0; |
1219 |
} |
1220 |
|
1221 |
live = sw->hw->total_samples_captured - sw->total_hw_samples_acquired; |
1222 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1223 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1224 |
return 0; |
1225 |
} |
1226 |
|
1227 |
ldebug ( |
1228 |
"%s: get_avail live %d ret %" PRId64 "\n", |
1229 |
SW_NAME (sw), |
1230 |
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift
|
1231 |
); |
1232 |
|
1233 |
return (((int64_t) live << 32) / sw->ratio) << sw->info.shift; |
1234 |
} |
1235 |
|
1236 |
static int audio_get_free (SWVoiceOut *sw) |
1237 |
{ |
1238 |
int live, dead;
|
1239 |
|
1240 |
if (!sw) {
|
1241 |
return 0; |
1242 |
} |
1243 |
|
1244 |
live = sw->total_hw_samples_mixed; |
1245 |
|
1246 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1247 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples);
|
1248 |
return 0; |
1249 |
} |
1250 |
|
1251 |
dead = sw->hw->samples - live; |
1252 |
|
1253 |
#ifdef DEBUG_OUT
|
1254 |
dolog ("%s: get_free live %d dead %d ret %" PRId64 "\n", |
1255 |
SW_NAME (sw), |
1256 |
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift);
|
1257 |
#endif
|
1258 |
|
1259 |
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; |
1260 |
} |
1261 |
|
1262 |
static void audio_capture_mix_and_clear (HWVoiceOut *hw, int rpos, int samples) |
1263 |
{ |
1264 |
int n;
|
1265 |
|
1266 |
if (hw->enabled) {
|
1267 |
SWVoiceCap *sc; |
1268 |
|
1269 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1270 |
SWVoiceOut *sw = &sc->sw; |
1271 |
int rpos2 = rpos;
|
1272 |
|
1273 |
n = samples; |
1274 |
while (n) {
|
1275 |
int till_end_of_hw = hw->samples - rpos2;
|
1276 |
int to_write = audio_MIN (till_end_of_hw, n);
|
1277 |
int bytes = to_write << hw->info.shift;
|
1278 |
int written;
|
1279 |
|
1280 |
sw->buf = hw->mix_buf + rpos2; |
1281 |
written = audio_pcm_sw_write (sw, NULL, bytes);
|
1282 |
if (written - bytes) {
|
1283 |
dolog ("Could not mix %d bytes into a capture "
|
1284 |
"buffer, mixed %d\n",
|
1285 |
bytes, written); |
1286 |
break;
|
1287 |
} |
1288 |
n -= to_write; |
1289 |
rpos2 = (rpos2 + to_write) % hw->samples; |
1290 |
} |
1291 |
} |
1292 |
} |
1293 |
|
1294 |
n = audio_MIN (samples, hw->samples - rpos); |
1295 |
mixeng_clear (hw->mix_buf + rpos, n); |
1296 |
mixeng_clear (hw->mix_buf, samples - n); |
1297 |
} |
1298 |
|
1299 |
static void audio_run_out (AudioState *s) |
1300 |
{ |
1301 |
HWVoiceOut *hw = NULL;
|
1302 |
SWVoiceOut *sw; |
1303 |
|
1304 |
while ((hw = audio_pcm_hw_find_any_enabled_out (s, hw))) {
|
1305 |
int played;
|
1306 |
int live, free, nb_live, cleanup_required, prev_rpos;
|
1307 |
|
1308 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
1309 |
if (!nb_live) {
|
1310 |
live = 0;
|
1311 |
} |
1312 |
|
1313 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
1314 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples);
|
1315 |
continue;
|
1316 |
} |
1317 |
|
1318 |
if (hw->pending_disable && !nb_live) {
|
1319 |
SWVoiceCap *sc; |
1320 |
#ifdef DEBUG_OUT
|
1321 |
dolog ("Disabling voice\n");
|
1322 |
#endif
|
1323 |
hw->enabled = 0;
|
1324 |
hw->pending_disable = 0;
|
1325 |
hw->pcm_ops->ctl_out (hw, VOICE_DISABLE); |
1326 |
for (sc = hw->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1327 |
sc->sw.active = 0;
|
1328 |
audio_recalc_and_notify_capture (sc->cap); |
1329 |
} |
1330 |
continue;
|
1331 |
} |
1332 |
|
1333 |
if (!live) {
|
1334 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1335 |
if (sw->active) {
|
1336 |
free = audio_get_free (sw); |
1337 |
if (free > 0) { |
1338 |
sw->callback.fn (sw->callback.opaque, free); |
1339 |
} |
1340 |
} |
1341 |
} |
1342 |
continue;
|
1343 |
} |
1344 |
|
1345 |
prev_rpos = hw->rpos; |
1346 |
played = hw->pcm_ops->run_out (hw); |
1347 |
if (audio_bug (AUDIO_FUNC, hw->rpos >= hw->samples)) {
|
1348 |
dolog ("hw->rpos=%d hw->samples=%d played=%d\n",
|
1349 |
hw->rpos, hw->samples, played); |
1350 |
hw->rpos = 0;
|
1351 |
} |
1352 |
|
1353 |
#ifdef DEBUG_OUT
|
1354 |
dolog ("played=%d\n", played);
|
1355 |
#endif
|
1356 |
|
1357 |
if (played) {
|
1358 |
hw->ts_helper += played; |
1359 |
audio_capture_mix_and_clear (hw, prev_rpos, played); |
1360 |
} |
1361 |
|
1362 |
cleanup_required = 0;
|
1363 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1364 |
if (!sw->active && sw->empty) {
|
1365 |
continue;
|
1366 |
} |
1367 |
|
1368 |
if (audio_bug (AUDIO_FUNC, played > sw->total_hw_samples_mixed)) {
|
1369 |
dolog ("played=%d sw->total_hw_samples_mixed=%d\n",
|
1370 |
played, sw->total_hw_samples_mixed); |
1371 |
played = sw->total_hw_samples_mixed; |
1372 |
} |
1373 |
|
1374 |
sw->total_hw_samples_mixed -= played; |
1375 |
|
1376 |
if (!sw->total_hw_samples_mixed) {
|
1377 |
sw->empty = 1;
|
1378 |
cleanup_required |= !sw->active && !sw->callback.fn; |
1379 |
} |
1380 |
|
1381 |
if (sw->active) {
|
1382 |
free = audio_get_free (sw); |
1383 |
if (free > 0) { |
1384 |
sw->callback.fn (sw->callback.opaque, free); |
1385 |
} |
1386 |
} |
1387 |
} |
1388 |
|
1389 |
if (cleanup_required) {
|
1390 |
SWVoiceOut *sw1; |
1391 |
|
1392 |
sw = hw->sw_head.lh_first; |
1393 |
while (sw) {
|
1394 |
sw1 = sw->entries.le_next; |
1395 |
if (!sw->active && !sw->callback.fn) {
|
1396 |
#ifdef DEBUG_PLIVE
|
1397 |
dolog ("Finishing with old voice\n");
|
1398 |
#endif
|
1399 |
audio_close_out (s, sw); |
1400 |
} |
1401 |
sw = sw1; |
1402 |
} |
1403 |
} |
1404 |
} |
1405 |
} |
1406 |
|
1407 |
static void audio_run_in (AudioState *s) |
1408 |
{ |
1409 |
HWVoiceIn *hw = NULL;
|
1410 |
|
1411 |
while ((hw = audio_pcm_hw_find_any_enabled_in (s, hw))) {
|
1412 |
SWVoiceIn *sw; |
1413 |
int captured, min;
|
1414 |
|
1415 |
captured = hw->pcm_ops->run_in (hw); |
1416 |
|
1417 |
min = audio_pcm_hw_find_min_in (hw); |
1418 |
hw->total_samples_captured += captured - min; |
1419 |
hw->ts_helper += captured; |
1420 |
|
1421 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1422 |
sw->total_hw_samples_acquired -= min; |
1423 |
|
1424 |
if (sw->active) {
|
1425 |
int avail;
|
1426 |
|
1427 |
avail = audio_get_avail (sw); |
1428 |
if (avail > 0) { |
1429 |
sw->callback.fn (sw->callback.opaque, avail); |
1430 |
} |
1431 |
} |
1432 |
} |
1433 |
} |
1434 |
} |
1435 |
|
1436 |
static void audio_run_capture (AudioState *s) |
1437 |
{ |
1438 |
CaptureVoiceOut *cap; |
1439 |
|
1440 |
for (cap = s->cap_head.lh_first; cap; cap = cap->entries.le_next) {
|
1441 |
int live, rpos, captured;
|
1442 |
HWVoiceOut *hw = &cap->hw; |
1443 |
SWVoiceOut *sw; |
1444 |
|
1445 |
captured = live = audio_pcm_hw_get_live_out (hw); |
1446 |
rpos = hw->rpos; |
1447 |
while (live) {
|
1448 |
int left = hw->samples - rpos;
|
1449 |
int to_capture = audio_MIN (live, left);
|
1450 |
st_sample_t *src; |
1451 |
struct capture_callback *cb;
|
1452 |
|
1453 |
src = hw->mix_buf + rpos; |
1454 |
hw->clip (cap->buf, src, to_capture); |
1455 |
mixeng_clear (src, to_capture); |
1456 |
|
1457 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1458 |
cb->ops.capture (cb->opaque, cap->buf, |
1459 |
to_capture << hw->info.shift); |
1460 |
} |
1461 |
rpos = (rpos + to_capture) % hw->samples; |
1462 |
live -= to_capture; |
1463 |
} |
1464 |
hw->rpos = rpos; |
1465 |
|
1466 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) {
|
1467 |
if (!sw->active && sw->empty) {
|
1468 |
continue;
|
1469 |
} |
1470 |
|
1471 |
if (audio_bug (AUDIO_FUNC, captured > sw->total_hw_samples_mixed)) {
|
1472 |
dolog ("captured=%d sw->total_hw_samples_mixed=%d\n",
|
1473 |
captured, sw->total_hw_samples_mixed); |
1474 |
captured = sw->total_hw_samples_mixed; |
1475 |
} |
1476 |
|
1477 |
sw->total_hw_samples_mixed -= captured; |
1478 |
sw->empty = sw->total_hw_samples_mixed == 0;
|
1479 |
} |
1480 |
} |
1481 |
} |
1482 |
|
1483 |
static void audio_timer (void *opaque) |
1484 |
{ |
1485 |
AudioState *s = opaque; |
1486 |
|
1487 |
audio_run_out (s); |
1488 |
audio_run_in (s); |
1489 |
audio_run_capture (s); |
1490 |
|
1491 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1492 |
} |
1493 |
|
1494 |
static struct audio_option audio_options[] = { |
1495 |
/* DAC */
|
1496 |
{"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_out.enabled,
|
1497 |
"Use fixed settings for host DAC", NULL, 0}, |
1498 |
|
1499 |
{"DAC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_out.settings.freq,
|
1500 |
"Frequency for fixed host DAC", NULL, 0}, |
1501 |
|
1502 |
{"DAC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_out.settings.fmt,
|
1503 |
"Format for fixed host DAC", NULL, 0}, |
1504 |
|
1505 |
{"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_out.settings.nchannels,
|
1506 |
"Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0}, |
1507 |
|
1508 |
{"DAC_VOICES", AUD_OPT_INT, &conf.fixed_out.nb_voices,
|
1509 |
"Number of voices for DAC", NULL, 0}, |
1510 |
|
1511 |
/* ADC */
|
1512 |
{"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_in.enabled,
|
1513 |
"Use fixed settings for host ADC", NULL, 0}, |
1514 |
|
1515 |
{"ADC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_in.settings.freq,
|
1516 |
"Frequency for fixed host ADC", NULL, 0}, |
1517 |
|
1518 |
{"ADC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_in.settings.fmt,
|
1519 |
"Format for fixed host ADC", NULL, 0}, |
1520 |
|
1521 |
{"ADC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_in.settings.nchannels,
|
1522 |
"Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0}, |
1523 |
|
1524 |
{"ADC_VOICES", AUD_OPT_INT, &conf.fixed_in.nb_voices,
|
1525 |
"Number of voices for ADC", NULL, 0}, |
1526 |
|
1527 |
/* Misc */
|
1528 |
{"TIMER_PERIOD", AUD_OPT_INT, &conf.period.hz,
|
1529 |
"Timer period in HZ (0 - use lowest possible)", NULL, 0}, |
1530 |
|
1531 |
{"PLIVE", AUD_OPT_BOOL, &conf.plive,
|
1532 |
"(undocumented)", NULL, 0}, |
1533 |
|
1534 |
{"LOG_TO_MONITOR", AUD_OPT_BOOL, &conf.log_to_monitor,
|
1535 |
"print logging messages to montior instead of stderr", NULL, 0}, |
1536 |
|
1537 |
{NULL, 0, NULL, NULL, NULL, 0} |
1538 |
}; |
1539 |
|
1540 |
static void audio_pp_nb_voices (const char *typ, int nb) |
1541 |
{ |
1542 |
switch (nb) {
|
1543 |
case 0: |
1544 |
printf ("Does not support %s\n", typ);
|
1545 |
break;
|
1546 |
case 1: |
1547 |
printf ("One %s voice\n", typ);
|
1548 |
break;
|
1549 |
case INT_MAX:
|
1550 |
printf ("Theoretically supports many %s voices\n", typ);
|
1551 |
break;
|
1552 |
default:
|
1553 |
printf ("Theoretically supports upto %d %s voices\n", nb, typ);
|
1554 |
break;
|
1555 |
} |
1556 |
|
1557 |
} |
1558 |
|
1559 |
void AUD_help (void) |
1560 |
{ |
1561 |
size_t i; |
1562 |
|
1563 |
audio_process_options ("AUDIO", audio_options);
|
1564 |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1565 |
struct audio_driver *d = drvtab[i];
|
1566 |
if (d->options) {
|
1567 |
audio_process_options (d->name, d->options); |
1568 |
} |
1569 |
} |
1570 |
|
1571 |
printf ("Audio options:\n");
|
1572 |
audio_print_options ("AUDIO", audio_options);
|
1573 |
printf ("\n");
|
1574 |
|
1575 |
printf ("Available drivers:\n");
|
1576 |
|
1577 |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1578 |
struct audio_driver *d = drvtab[i];
|
1579 |
|
1580 |
printf ("Name: %s\n", d->name);
|
1581 |
printf ("Description: %s\n", d->descr);
|
1582 |
|
1583 |
audio_pp_nb_voices ("playback", d->max_voices_out);
|
1584 |
audio_pp_nb_voices ("capture", d->max_voices_in);
|
1585 |
|
1586 |
if (d->options) {
|
1587 |
printf ("Options:\n");
|
1588 |
audio_print_options (d->name, d->options); |
1589 |
} |
1590 |
else {
|
1591 |
printf ("No options\n");
|
1592 |
} |
1593 |
printf ("\n");
|
1594 |
} |
1595 |
|
1596 |
printf ( |
1597 |
"Options are settable through environment variables.\n"
|
1598 |
"Example:\n"
|
1599 |
#ifdef _WIN32
|
1600 |
" set QEMU_AUDIO_DRV=wav\n"
|
1601 |
" set QEMU_WAV_PATH=c:\\tune.wav\n"
|
1602 |
#else
|
1603 |
" export QEMU_AUDIO_DRV=wav\n"
|
1604 |
" export QEMU_WAV_PATH=$HOME/tune.wav\n"
|
1605 |
"(for csh replace export with setenv in the above)\n"
|
1606 |
#endif
|
1607 |
" qemu ...\n\n"
|
1608 |
); |
1609 |
} |
1610 |
|
1611 |
static int audio_driver_init (AudioState *s, struct audio_driver *drv) |
1612 |
{ |
1613 |
if (drv->options) {
|
1614 |
audio_process_options (drv->name, drv->options); |
1615 |
} |
1616 |
s->drv_opaque = drv->init (); |
1617 |
|
1618 |
if (s->drv_opaque) {
|
1619 |
audio_init_nb_voices_out (s, drv); |
1620 |
audio_init_nb_voices_in (s, drv); |
1621 |
s->drv = drv; |
1622 |
return 0; |
1623 |
} |
1624 |
else {
|
1625 |
dolog ("Could not init `%s' audio driver\n", drv->name);
|
1626 |
return -1; |
1627 |
} |
1628 |
} |
1629 |
|
1630 |
static void audio_vm_change_state_handler (void *opaque, int running) |
1631 |
{ |
1632 |
AudioState *s = opaque; |
1633 |
HWVoiceOut *hwo = NULL;
|
1634 |
HWVoiceIn *hwi = NULL;
|
1635 |
int op = running ? VOICE_ENABLE : VOICE_DISABLE;
|
1636 |
|
1637 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) {
|
1638 |
hwo->pcm_ops->ctl_out (hwo, op); |
1639 |
} |
1640 |
|
1641 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) {
|
1642 |
hwi->pcm_ops->ctl_in (hwi, op); |
1643 |
} |
1644 |
} |
1645 |
|
1646 |
static void audio_atexit (void) |
1647 |
{ |
1648 |
AudioState *s = &glob_audio_state; |
1649 |
HWVoiceOut *hwo = NULL;
|
1650 |
HWVoiceIn *hwi = NULL;
|
1651 |
|
1652 |
while ((hwo = audio_pcm_hw_find_any_enabled_out (s, hwo))) {
|
1653 |
SWVoiceCap *sc; |
1654 |
|
1655 |
hwo->pcm_ops->ctl_out (hwo, VOICE_DISABLE); |
1656 |
hwo->pcm_ops->fini_out (hwo); |
1657 |
|
1658 |
for (sc = hwo->cap_head.lh_first; sc; sc = sc->entries.le_next) {
|
1659 |
CaptureVoiceOut *cap = sc->cap; |
1660 |
struct capture_callback *cb;
|
1661 |
|
1662 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1663 |
cb->ops.destroy (cb->opaque); |
1664 |
} |
1665 |
} |
1666 |
} |
1667 |
|
1668 |
while ((hwi = audio_pcm_hw_find_any_enabled_in (s, hwi))) {
|
1669 |
hwi->pcm_ops->ctl_in (hwi, VOICE_DISABLE); |
1670 |
hwi->pcm_ops->fini_in (hwi); |
1671 |
} |
1672 |
|
1673 |
if (s->drv) {
|
1674 |
s->drv->fini (s->drv_opaque); |
1675 |
} |
1676 |
} |
1677 |
|
1678 |
static void audio_save (QEMUFile *f, void *opaque) |
1679 |
{ |
1680 |
(void) f;
|
1681 |
(void) opaque;
|
1682 |
} |
1683 |
|
1684 |
static int audio_load (QEMUFile *f, void *opaque, int version_id) |
1685 |
{ |
1686 |
(void) f;
|
1687 |
(void) opaque;
|
1688 |
|
1689 |
if (version_id != 1) { |
1690 |
return -EINVAL;
|
1691 |
} |
1692 |
|
1693 |
return 0; |
1694 |
} |
1695 |
|
1696 |
void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card) |
1697 |
{ |
1698 |
card->audio = s; |
1699 |
card->name = qemu_strdup (name); |
1700 |
memset (&card->entries, 0, sizeof (card->entries)); |
1701 |
LIST_INSERT_HEAD (&s->card_head, card, entries); |
1702 |
} |
1703 |
|
1704 |
void AUD_remove_card (QEMUSoundCard *card)
|
1705 |
{ |
1706 |
LIST_REMOVE (card, entries); |
1707 |
card->audio = NULL;
|
1708 |
qemu_free (card->name); |
1709 |
} |
1710 |
|
1711 |
AudioState *AUD_init (void)
|
1712 |
{ |
1713 |
size_t i; |
1714 |
int done = 0; |
1715 |
const char *drvname; |
1716 |
AudioState *s = &glob_audio_state; |
1717 |
|
1718 |
LIST_INIT (&s->hw_head_out); |
1719 |
LIST_INIT (&s->hw_head_in); |
1720 |
LIST_INIT (&s->cap_head); |
1721 |
atexit (audio_atexit); |
1722 |
|
1723 |
s->ts = qemu_new_timer (vm_clock, audio_timer, s); |
1724 |
if (!s->ts) {
|
1725 |
dolog ("Could not create audio timer\n");
|
1726 |
return NULL; |
1727 |
} |
1728 |
|
1729 |
audio_process_options ("AUDIO", audio_options);
|
1730 |
|
1731 |
s->nb_hw_voices_out = conf.fixed_out.nb_voices; |
1732 |
s->nb_hw_voices_in = conf.fixed_in.nb_voices; |
1733 |
|
1734 |
if (s->nb_hw_voices_out <= 0) { |
1735 |
dolog ("Bogus number of playback voices %d, setting to 1\n",
|
1736 |
s->nb_hw_voices_out); |
1737 |
s->nb_hw_voices_out = 1;
|
1738 |
} |
1739 |
|
1740 |
if (s->nb_hw_voices_in <= 0) { |
1741 |
dolog ("Bogus number of capture voices %d, setting to 0\n",
|
1742 |
s->nb_hw_voices_in); |
1743 |
s->nb_hw_voices_in = 0;
|
1744 |
} |
1745 |
|
1746 |
{ |
1747 |
int def;
|
1748 |
drvname = audio_get_conf_str ("QEMU_AUDIO_DRV", NULL, &def); |
1749 |
} |
1750 |
|
1751 |
if (drvname) {
|
1752 |
int found = 0; |
1753 |
|
1754 |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1755 |
if (!strcmp (drvname, drvtab[i]->name)) {
|
1756 |
done = !audio_driver_init (s, drvtab[i]); |
1757 |
found = 1;
|
1758 |
break;
|
1759 |
} |
1760 |
} |
1761 |
|
1762 |
if (!found) {
|
1763 |
dolog ("Unknown audio driver `%s'\n", drvname);
|
1764 |
dolog ("Run with -audio-help to list available drivers\n");
|
1765 |
} |
1766 |
} |
1767 |
|
1768 |
if (!done) {
|
1769 |
for (i = 0; !done && i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1770 |
if (drvtab[i]->can_be_default) {
|
1771 |
done = !audio_driver_init (s, drvtab[i]); |
1772 |
} |
1773 |
} |
1774 |
} |
1775 |
|
1776 |
if (!done) {
|
1777 |
done = !audio_driver_init (s, &no_audio_driver); |
1778 |
if (!done) {
|
1779 |
dolog ("Could not initialize audio subsystem\n");
|
1780 |
} |
1781 |
else {
|
1782 |
dolog ("warning: Using timer based audio emulation\n");
|
1783 |
} |
1784 |
} |
1785 |
|
1786 |
if (done) {
|
1787 |
VMChangeStateEntry *e; |
1788 |
|
1789 |
if (conf.period.hz <= 0) { |
1790 |
if (conf.period.hz < 0) { |
1791 |
dolog ("warning: Timer period is negative - %d "
|
1792 |
"treating as zero\n",
|
1793 |
conf.period.hz); |
1794 |
} |
1795 |
conf.period.ticks = 1;
|
1796 |
} |
1797 |
else {
|
1798 |
conf.period.ticks = ticks_per_sec / conf.period.hz; |
1799 |
} |
1800 |
|
1801 |
e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s); |
1802 |
if (!e) {
|
1803 |
dolog ("warning: Could not register change state handler\n"
|
1804 |
"(Audio can continue looping even after stopping the VM)\n");
|
1805 |
} |
1806 |
} |
1807 |
else {
|
1808 |
qemu_del_timer (s->ts); |
1809 |
return NULL; |
1810 |
} |
1811 |
|
1812 |
LIST_INIT (&s->card_head); |
1813 |
register_savevm ("audio", 0, 1, audio_save, audio_load, s); |
1814 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1815 |
return s;
|
1816 |
} |
1817 |
|
1818 |
CaptureVoiceOut *AUD_add_capture ( |
1819 |
AudioState *s, |
1820 |
audsettings_t *as, |
1821 |
struct audio_capture_ops *ops,
|
1822 |
void *cb_opaque
|
1823 |
) |
1824 |
{ |
1825 |
CaptureVoiceOut *cap; |
1826 |
struct capture_callback *cb;
|
1827 |
|
1828 |
if (!s) {
|
1829 |
/* XXX suppress */
|
1830 |
s = &glob_audio_state; |
1831 |
} |
1832 |
|
1833 |
if (audio_validate_settings (as)) {
|
1834 |
dolog ("Invalid settings were passed when trying to add capture\n");
|
1835 |
audio_print_settings (as); |
1836 |
goto err0;
|
1837 |
} |
1838 |
|
1839 |
cb = audio_calloc (AUDIO_FUNC, 1, sizeof (*cb)); |
1840 |
if (!cb) {
|
1841 |
dolog ("Could not allocate capture callback information, size %zu\n",
|
1842 |
sizeof (*cb));
|
1843 |
goto err0;
|
1844 |
} |
1845 |
cb->ops = *ops; |
1846 |
cb->opaque = cb_opaque; |
1847 |
|
1848 |
cap = audio_pcm_capture_find_specific (s, as); |
1849 |
if (cap) {
|
1850 |
LIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1851 |
return cap;
|
1852 |
} |
1853 |
else {
|
1854 |
HWVoiceOut *hw; |
1855 |
CaptureVoiceOut *cap; |
1856 |
|
1857 |
cap = audio_calloc (AUDIO_FUNC, 1, sizeof (*cap)); |
1858 |
if (!cap) {
|
1859 |
dolog ("Could not allocate capture voice, size %zu\n",
|
1860 |
sizeof (*cap));
|
1861 |
goto err1;
|
1862 |
} |
1863 |
|
1864 |
hw = &cap->hw; |
1865 |
LIST_INIT (&hw->sw_head); |
1866 |
LIST_INIT (&cap->cb_head); |
1867 |
|
1868 |
/* XXX find a more elegant way */
|
1869 |
hw->samples = 4096 * 4; |
1870 |
hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, |
1871 |
sizeof (st_sample_t));
|
1872 |
if (!hw->mix_buf) {
|
1873 |
dolog ("Could not allocate capture mix buffer (%d samples)\n",
|
1874 |
hw->samples); |
1875 |
goto err2;
|
1876 |
} |
1877 |
|
1878 |
audio_pcm_init_info (&hw->info, as); |
1879 |
|
1880 |
cap->buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
1881 |
if (!cap->buf) {
|
1882 |
dolog ("Could not allocate capture buffer "
|
1883 |
"(%d samples, each %d bytes)\n",
|
1884 |
hw->samples, 1 << hw->info.shift);
|
1885 |
goto err3;
|
1886 |
} |
1887 |
|
1888 |
hw->clip = mixeng_clip |
1889 |
[hw->info.nchannels == 2]
|
1890 |
[hw->info.sign] |
1891 |
[hw->info.swap_endianness] |
1892 |
[audio_bits_to_index (hw->info.bits)]; |
1893 |
|
1894 |
LIST_INSERT_HEAD (&s->cap_head, cap, entries); |
1895 |
LIST_INSERT_HEAD (&cap->cb_head, cb, entries); |
1896 |
|
1897 |
hw = NULL;
|
1898 |
while ((hw = audio_pcm_hw_find_any_out (s, hw))) {
|
1899 |
audio_attach_capture (s, hw); |
1900 |
} |
1901 |
return cap;
|
1902 |
|
1903 |
err3:
|
1904 |
qemu_free (cap->hw.mix_buf); |
1905 |
err2:
|
1906 |
qemu_free (cap); |
1907 |
err1:
|
1908 |
qemu_free (cb); |
1909 |
err0:
|
1910 |
return NULL; |
1911 |
} |
1912 |
} |
1913 |
|
1914 |
void AUD_del_capture (CaptureVoiceOut *cap, void *cb_opaque) |
1915 |
{ |
1916 |
struct capture_callback *cb;
|
1917 |
|
1918 |
for (cb = cap->cb_head.lh_first; cb; cb = cb->entries.le_next) {
|
1919 |
if (cb->opaque == cb_opaque) {
|
1920 |
cb->ops.destroy (cb_opaque); |
1921 |
LIST_REMOVE (cb, entries); |
1922 |
qemu_free (cb); |
1923 |
|
1924 |
if (!cap->cb_head.lh_first) {
|
1925 |
SWVoiceOut *sw = cap->hw.sw_head.lh_first, *sw1; |
1926 |
|
1927 |
while (sw) {
|
1928 |
SWVoiceCap *sc = (SWVoiceCap *) sw; |
1929 |
#ifdef DEBUG_CAPTURE
|
1930 |
dolog ("freeing %s\n", sw->name);
|
1931 |
#endif
|
1932 |
|
1933 |
sw1 = sw->entries.le_next; |
1934 |
if (sw->rate) {
|
1935 |
st_rate_stop (sw->rate); |
1936 |
sw->rate = NULL;
|
1937 |
} |
1938 |
LIST_REMOVE (sw, entries); |
1939 |
LIST_REMOVE (sc, entries); |
1940 |
qemu_free (sc); |
1941 |
sw = sw1; |
1942 |
} |
1943 |
LIST_REMOVE (cap, entries); |
1944 |
qemu_free (cap); |
1945 |
} |
1946 |
return;
|
1947 |
} |
1948 |
} |
1949 |
} |