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![reimar](/assets/img/avatar_default.png)
RenderCallbackSPDIF might call read_buffer with NULL data. The purpose is to drain data from the buffer when the output is muted. Add a check to call av_fifo_drain() in this case. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34241 b3059339-0415-0410-9bf9-f77b7e298cf2 git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34242 b3059339-0415-0410-9bf9-f77b7e298cf2
1277 lines
45 KiB
C
1277 lines
45 KiB
C
/*
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* CoreAudio audio output driver for Mac OS X
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*
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* original copyright (C) Timothy J. Wood - Aug 2000
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* ported to MPlayer libao2 by Dan Christiansen
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*
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* The S/PDIF part of the code is based on the auhal audio output
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* module from VideoLAN:
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* Copyright (c) 2006 Derk-Jan Hartman <hartman at videolan dot org>
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* along with MPlayer; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* The MacOS X CoreAudio framework doesn't mesh as simply as some
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* simpler frameworks do. This is due to the fact that CoreAudio pulls
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* audio samples rather than having them pushed at it (which is nice
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* when you are wanting to do good buffering of audio).
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*
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* AC-3 and MPEG audio passthrough is possible, but has never been tested
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* due to lack of a soundcard that supports it.
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*/
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#include <CoreServices/CoreServices.h>
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#include <AudioUnit/AudioUnit.h>
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#include <AudioToolbox/AudioToolbox.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "audio_out.h"
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#include "audio_out_internal.h"
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#include "libaf/af_format.h"
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#include "osdep/timer.h"
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#include "libavutil/fifo.h"
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#include "subopt-helper.h"
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static const ao_info_t info =
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{
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"Darwin/Mac OS X native audio output",
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"coreaudio",
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"Timothy J. Wood & Dan Christiansen & Chris Roccati",
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""
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};
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LIBAO_EXTERN(coreaudio)
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/* Prefix for all mp_msg() calls */
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#define ao_msg(a, b, c...) mp_msg(a, b, "AO: [coreaudio] " c)
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#if MAC_OS_X_VERSION_MAX_ALLOWED <= 1040
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/* AudioDeviceIOProcID does not exist in Mac OS X 10.4. We can emulate
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* this by using AudioDeviceAddIOProc() and AudioDeviceRemoveIOProc(). */
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#define AudioDeviceIOProcID AudioDeviceIOProc
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#define AudioDeviceDestroyIOProcID AudioDeviceRemoveIOProc
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static OSStatus AudioDeviceCreateIOProcID(AudioDeviceID dev,
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AudioDeviceIOProc proc,
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void *data,
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AudioDeviceIOProcID *procid)
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{
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*procid = proc;
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return AudioDeviceAddIOProc(dev, proc, data);
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}
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#endif
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typedef struct ao_coreaudio_s
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{
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AudioDeviceID i_selected_dev; /* Keeps DeviceID of the selected device. */
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int b_supports_digital; /* Does the currently selected device support digital mode? */
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int b_digital; /* Are we running in digital mode? */
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int b_muted; /* Are we muted in digital mode? */
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AudioDeviceIOProcID renderCallback; /* Render callback used for SPDIF */
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/* AudioUnit */
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AudioUnit theOutputUnit;
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/* CoreAudio SPDIF mode specific */
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pid_t i_hog_pid; /* Keeps the pid of our hog status. */
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AudioStreamID i_stream_id; /* The StreamID that has a cac3 streamformat */
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int i_stream_index; /* The index of i_stream_id in an AudioBufferList */
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AudioStreamBasicDescription stream_format;/* The format we changed the stream to */
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AudioStreamBasicDescription sfmt_revert; /* The original format of the stream */
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int b_revert; /* Whether we need to revert the stream format */
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int b_changed_mixing; /* Whether we need to set the mixing mode back */
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int b_stream_format_changed; /* Flag for main thread to reset stream's format to digital and reset buffer */
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/* Original common part */
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int packetSize;
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int paused;
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/* Ring-buffer */
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AVFifoBuffer *buffer;
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unsigned int buffer_len; ///< must always be num_chunks * chunk_size
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unsigned int num_chunks;
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unsigned int chunk_size;
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} ao_coreaudio_t;
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static ao_coreaudio_t *ao = NULL;
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/**
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* \brief add data to ringbuffer
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*/
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static int write_buffer(unsigned char* data, int len){
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int free = ao->buffer_len - av_fifo_size(ao->buffer);
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if (len > free) len = free;
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return av_fifo_generic_write(ao->buffer, data, len, NULL);
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}
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/**
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* \brief remove data from ringbuffer
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*/
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static int read_buffer(unsigned char* data,int len){
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int buffered = av_fifo_size(ao->buffer);
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if (len > buffered) len = buffered;
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if (data)
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av_fifo_generic_read(ao->buffer, data, len, NULL);
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else
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av_fifo_drain(ao->buffer, len);
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return len;
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}
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static OSStatus theRenderProc(void *inRefCon,
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AudioUnitRenderActionFlags *inActionFlags,
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const AudioTimeStamp *inTimeStamp,
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UInt32 inBusNumber, UInt32 inNumFrames,
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AudioBufferList *ioData)
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{
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int amt=av_fifo_size(ao->buffer);
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int req=(inNumFrames)*ao->packetSize;
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if(amt>req)
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amt=req;
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if(amt)
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read_buffer((unsigned char *)ioData->mBuffers[0].mData, amt);
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else audio_pause();
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ioData->mBuffers[0].mDataByteSize = amt;
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return noErr;
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}
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static int control(int cmd,void *arg){
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ao_control_vol_t *control_vol;
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OSStatus err;
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Float32 vol;
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switch (cmd) {
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case AOCONTROL_GET_VOLUME:
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control_vol = (ao_control_vol_t*)arg;
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if (ao->b_digital) {
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// Digital output has no volume adjust.
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return CONTROL_FALSE;
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}
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err = AudioUnitGetParameter(ao->theOutputUnit, kHALOutputParam_Volume, kAudioUnitScope_Global, 0, &vol);
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if(err==0) {
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// printf("GET VOL=%f\n", vol);
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control_vol->left=control_vol->right=vol*100.0/4.0;
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return CONTROL_TRUE;
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}
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else {
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ao_msg(MSGT_AO, MSGL_WARN, "could not get HAL output volume: [%4.4s]\n", (char *)&err);
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return CONTROL_FALSE;
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}
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case AOCONTROL_SET_VOLUME:
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control_vol = (ao_control_vol_t*)arg;
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if (ao->b_digital) {
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// Digital output can not set volume. Here we have to return true
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// to make mixer forget it. Else mixer will add a soft filter,
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// that's not we expected and the filter not support ac3 stream
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// will cause mplayer die.
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// Although not support set volume, but at least we support mute.
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// MPlayer set mute by set volume to zero, we handle it.
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if (control_vol->left == 0 && control_vol->right == 0)
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ao->b_muted = 1;
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else
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ao->b_muted = 0;
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return CONTROL_TRUE;
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}
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vol=(control_vol->left+control_vol->right)*4.0/200.0;
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err = AudioUnitSetParameter(ao->theOutputUnit, kHALOutputParam_Volume, kAudioUnitScope_Global, 0, vol, 0);
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if(err==0) {
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// printf("SET VOL=%f\n", vol);
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return CONTROL_TRUE;
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}
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else {
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ao_msg(MSGT_AO, MSGL_WARN, "could not set HAL output volume: [%4.4s]\n", (char *)&err);
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return CONTROL_FALSE;
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}
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/* Everything is currently unimplemented */
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default:
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return CONTROL_FALSE;
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}
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}
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static void print_format(int lev, const char* str, const AudioStreamBasicDescription *f){
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uint32_t flags=(uint32_t) f->mFormatFlags;
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ao_msg(MSGT_AO,lev, "%s %7.1fHz %"PRIu32"bit [%c%c%c%c][%"PRIu32"][%"PRIu32"][%"PRIu32"][%"PRIu32"][%"PRIu32"] %s %s %s%s%s%s\n",
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str, f->mSampleRate, f->mBitsPerChannel,
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(int)(f->mFormatID & 0xff000000) >> 24,
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(int)(f->mFormatID & 0x00ff0000) >> 16,
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(int)(f->mFormatID & 0x0000ff00) >> 8,
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(int)(f->mFormatID & 0x000000ff) >> 0,
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f->mFormatFlags, f->mBytesPerPacket,
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f->mFramesPerPacket, f->mBytesPerFrame,
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f->mChannelsPerFrame,
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(flags&kAudioFormatFlagIsFloat) ? "float" : "int",
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(flags&kAudioFormatFlagIsBigEndian) ? "BE" : "LE",
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(flags&kAudioFormatFlagIsSignedInteger) ? "S" : "U",
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(flags&kAudioFormatFlagIsPacked) ? " packed" : "",
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(flags&kAudioFormatFlagIsAlignedHigh) ? " aligned" : "",
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(flags&kAudioFormatFlagIsNonInterleaved) ? " ni" : "" );
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}
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static OSStatus GetAudioProperty(AudioObjectID id,
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AudioObjectPropertySelector selector,
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UInt32 outSize, void *outData)
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{
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AudioObjectPropertyAddress property_address;
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property_address.mSelector = selector;
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property_address.mScope = kAudioObjectPropertyScopeGlobal;
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property_address.mElement = kAudioObjectPropertyElementMaster;
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return AudioObjectGetPropertyData(id, &property_address, 0, NULL, &outSize, outData);
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}
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static UInt32 GetAudioPropertyArray(AudioObjectID id,
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AudioObjectPropertySelector selector,
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AudioObjectPropertyScope scope,
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void **outData)
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{
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OSStatus err;
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AudioObjectPropertyAddress property_address;
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UInt32 i_param_size;
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property_address.mSelector = selector;
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property_address.mScope = scope;
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property_address.mElement = kAudioObjectPropertyElementMaster;
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err = AudioObjectGetPropertyDataSize(id, &property_address, 0, NULL, &i_param_size);
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if (err != noErr)
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return 0;
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*outData = malloc(i_param_size);
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err = AudioObjectGetPropertyData(id, &property_address, 0, NULL, &i_param_size, *outData);
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if (err != noErr) {
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free(*outData);
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return 0;
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}
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return i_param_size;
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}
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static UInt32 GetGlobalAudioPropertyArray(AudioObjectID id,
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AudioObjectPropertySelector selector,
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void **outData)
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{
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return GetAudioPropertyArray(id, selector, kAudioObjectPropertyScopeGlobal, outData);
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}
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static OSStatus GetAudioPropertyString(AudioObjectID id,
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AudioObjectPropertySelector selector,
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char **outData)
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{
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OSStatus err;
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AudioObjectPropertyAddress property_address;
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UInt32 i_param_size;
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CFStringRef string;
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CFIndex string_length;
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property_address.mSelector = selector;
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property_address.mScope = kAudioObjectPropertyScopeGlobal;
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property_address.mElement = kAudioObjectPropertyElementMaster;
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i_param_size = sizeof(CFStringRef);
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err = AudioObjectGetPropertyData(id, &property_address, 0, NULL, &i_param_size, &string);
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if (err != noErr)
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return err;
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string_length = CFStringGetMaximumSizeForEncoding(CFStringGetLength(string),
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kCFStringEncodingASCII);
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*outData = malloc(string_length + 1);
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CFStringGetCString(string, *outData, string_length + 1, kCFStringEncodingASCII);
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CFRelease(string);
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return err;
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}
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static OSStatus SetAudioProperty(AudioObjectID id,
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AudioObjectPropertySelector selector,
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UInt32 inDataSize, void *inData)
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{
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AudioObjectPropertyAddress property_address;
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property_address.mSelector = selector;
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property_address.mScope = kAudioObjectPropertyScopeGlobal;
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property_address.mElement = kAudioObjectPropertyElementMaster;
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return AudioObjectSetPropertyData(id, &property_address, 0, NULL, inDataSize, inData);
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}
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static Boolean IsAudioPropertySettable(AudioObjectID id,
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AudioObjectPropertySelector selector,
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Boolean *outData)
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{
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AudioObjectPropertyAddress property_address;
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property_address.mSelector = selector;
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property_address.mScope = kAudioObjectPropertyScopeGlobal;
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property_address.mElement = kAudioObjectPropertyElementMaster;
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return AudioObjectIsPropertySettable(id, &property_address, outData);
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}
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static int AudioDeviceSupportsDigital( AudioDeviceID i_dev_id );
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static int AudioStreamSupportsDigital( AudioStreamID i_stream_id );
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static int OpenSPDIF(void);
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static int AudioStreamChangeFormat( AudioStreamID i_stream_id, AudioStreamBasicDescription change_format );
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static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
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const AudioTimeStamp * inNow,
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const void * inInputData,
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const AudioTimeStamp * inInputTime,
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AudioBufferList * outOutputData,
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const AudioTimeStamp * inOutputTime,
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void * threadGlobals );
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static OSStatus StreamListener( AudioObjectID inObjectID,
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UInt32 inNumberAddresses,
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const AudioObjectPropertyAddress inAddresses[],
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void *inClientData );
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static OSStatus DeviceListener( AudioObjectID inObjectID,
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UInt32 inNumberAddresses,
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const AudioObjectPropertyAddress inAddresses[],
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void *inClientData );
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static void print_help(void)
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{
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OSStatus err;
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UInt32 i_param_size;
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int num_devices;
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AudioDeviceID *devids;
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char *device_name;
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mp_msg(MSGT_AO, MSGL_FATAL,
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"\n-ao coreaudio commandline help:\n"
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"Example: mplayer -ao coreaudio:device_id=266\n"
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" open Core Audio with output device ID 266.\n"
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"\nOptions:\n"
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" device_id\n"
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" ID of output device to use (0 = default device)\n"
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" help\n"
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" This help including list of available devices.\n"
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"\n"
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"Available output devices:\n");
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i_param_size = GetGlobalAudioPropertyArray(kAudioObjectSystemObject, kAudioHardwarePropertyDevices, (void **)&devids);
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|
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if (!i_param_size) {
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mp_msg(MSGT_AO, MSGL_FATAL, "Failed to get list of output devices.\n");
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return;
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}
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num_devices = i_param_size / sizeof(AudioDeviceID);
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|
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for (int i = 0; i < num_devices; ++i) {
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err = GetAudioPropertyString(devids[i], kAudioObjectPropertyName, &device_name);
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if (err == noErr) {
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mp_msg(MSGT_AO, MSGL_FATAL, "%s (id: %"PRIu32")\n", device_name, devids[i]);
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free(device_name);
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} else
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mp_msg(MSGT_AO, MSGL_FATAL, "Unknown (id: %"PRIu32")\n", devids[i]);
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}
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|
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mp_msg(MSGT_AO, MSGL_FATAL, "\n");
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|
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free(devids);
|
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}
|
|
|
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static int init(int rate,int channels,int format,int flags)
|
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{
|
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AudioStreamBasicDescription inDesc;
|
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ComponentDescription desc;
|
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Component comp;
|
|
AURenderCallbackStruct renderCallback;
|
|
OSStatus err;
|
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UInt32 size, maxFrames, b_alive;
|
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char *psz_name;
|
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AudioDeviceID devid_def = 0;
|
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int device_id, display_help = 0;
|
|
|
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const opt_t subopts[] = {
|
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{"device_id", OPT_ARG_INT, &device_id, NULL},
|
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{"help", OPT_ARG_BOOL, &display_help, NULL},
|
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{NULL}
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};
|
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|
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// set defaults
|
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device_id = 0;
|
|
|
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if (subopt_parse(ao_subdevice, subopts) != 0 || display_help) {
|
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print_help();
|
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if (!display_help)
|
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return 0;
|
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}
|
|
|
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ao_msg(MSGT_AO,MSGL_V, "init([%dHz][%dch][%s][%d])\n", rate, channels, af_fmt2str_short(format), flags);
|
|
|
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ao = calloc(1, sizeof(ao_coreaudio_t));
|
|
|
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ao->i_selected_dev = 0;
|
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ao->b_supports_digital = 0;
|
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ao->b_digital = 0;
|
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ao->b_muted = 0;
|
|
ao->b_stream_format_changed = 0;
|
|
ao->i_hog_pid = -1;
|
|
ao->i_stream_id = 0;
|
|
ao->i_stream_index = -1;
|
|
ao->b_revert = 0;
|
|
ao->b_changed_mixing = 0;
|
|
|
|
if (device_id == 0) {
|
|
/* Find the ID of the default Device. */
|
|
err = GetAudioProperty(kAudioObjectSystemObject,
|
|
kAudioHardwarePropertyDefaultOutputDevice,
|
|
sizeof(UInt32), &devid_def);
|
|
if (err != noErr)
|
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{
|
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ao_msg(MSGT_AO, MSGL_WARN, "could not get default audio device: [%4.4s]\n", (char *)&err);
|
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goto err_out;
|
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}
|
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} else {
|
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devid_def = device_id;
|
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}
|
|
|
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/* Retrieve the name of the device. */
|
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err = GetAudioPropertyString(devid_def,
|
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kAudioObjectPropertyName,
|
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&psz_name);
|
|
if (err != noErr)
|
|
{
|
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ao_msg(MSGT_AO, MSGL_WARN, "could not get default audio device name: [%4.4s]\n", (char *)&err);
|
|
goto err_out;
|
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}
|
|
|
|
ao_msg(MSGT_AO,MSGL_V, "got audio output device ID: %"PRIu32" Name: %s\n", devid_def, psz_name );
|
|
|
|
/* Probe whether device support S/PDIF stream output if input is AC3 stream. */
|
|
if (AF_FORMAT_IS_AC3(format)) {
|
|
if (AudioDeviceSupportsDigital(devid_def))
|
|
{
|
|
ao->b_supports_digital = 1;
|
|
}
|
|
ao_msg(MSGT_AO, MSGL_V,
|
|
"probe default audio output device about support for digital s/pdif output: %d\n",
|
|
ao->b_supports_digital );
|
|
}
|
|
|
|
free(psz_name);
|
|
|
|
// Save selected device id
|
|
ao->i_selected_dev = devid_def;
|
|
|
|
// Build Description for the input format
|
|
inDesc.mSampleRate=rate;
|
|
inDesc.mFormatID=ao->b_supports_digital ? kAudioFormat60958AC3 : kAudioFormatLinearPCM;
|
|
inDesc.mChannelsPerFrame=channels;
|
|
inDesc.mBitsPerChannel=af_fmt2bits(format);
|
|
|
|
if((format&AF_FORMAT_POINT_MASK)==AF_FORMAT_F) {
|
|
// float
|
|
inDesc.mFormatFlags = kAudioFormatFlagIsFloat|kAudioFormatFlagIsPacked;
|
|
}
|
|
else if((format&AF_FORMAT_SIGN_MASK)==AF_FORMAT_SI) {
|
|
// signed int
|
|
inDesc.mFormatFlags = kAudioFormatFlagIsSignedInteger|kAudioFormatFlagIsPacked;
|
|
}
|
|
else {
|
|
// unsigned int
|
|
inDesc.mFormatFlags = kAudioFormatFlagIsPacked;
|
|
}
|
|
if ((format & AF_FORMAT_END_MASK) == AF_FORMAT_BE)
|
|
inDesc.mFormatFlags |= kAudioFormatFlagIsBigEndian;
|
|
|
|
inDesc.mFramesPerPacket = 1;
|
|
ao->packetSize = inDesc.mBytesPerPacket = inDesc.mBytesPerFrame = inDesc.mFramesPerPacket*channels*(inDesc.mBitsPerChannel/8);
|
|
print_format(MSGL_V, "source:",&inDesc);
|
|
|
|
if (ao->b_supports_digital)
|
|
{
|
|
b_alive = 1;
|
|
err = GetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertyDeviceIsAlive,
|
|
sizeof(UInt32), &b_alive);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "could not check whether device is alive: [%4.4s]\n", (char *)&err);
|
|
if (!b_alive)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "device is not alive\n" );
|
|
|
|
/* S/PDIF output need device in HogMode. */
|
|
err = GetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertyHogMode,
|
|
sizeof(pid_t), &ao->i_hog_pid);
|
|
if (err != noErr)
|
|
{
|
|
/* This is not a fatal error. Some drivers simply don't support this property. */
|
|
ao_msg(MSGT_AO, MSGL_WARN, "could not check whether device is hogged: [%4.4s]\n",
|
|
(char *)&err);
|
|
ao->i_hog_pid = -1;
|
|
}
|
|
|
|
if (ao->i_hog_pid != -1 && ao->i_hog_pid != getpid())
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Selected audio device is exclusively in use by another program.\n" );
|
|
goto err_out;
|
|
}
|
|
ao->stream_format = inDesc;
|
|
return OpenSPDIF();
|
|
}
|
|
|
|
/* original analog output code */
|
|
desc.componentType = kAudioUnitType_Output;
|
|
desc.componentSubType = (device_id == 0) ? kAudioUnitSubType_DefaultOutput : kAudioUnitSubType_HALOutput;
|
|
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
|
|
desc.componentFlags = 0;
|
|
desc.componentFlagsMask = 0;
|
|
|
|
comp = FindNextComponent(NULL, &desc); //Finds an component that meets the desc spec's
|
|
if (comp == NULL) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Unable to find Output Unit component\n");
|
|
goto err_out;
|
|
}
|
|
|
|
err = OpenAComponent(comp, &(ao->theOutputUnit)); //gains access to the services provided by the component
|
|
if (err) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Unable to open Output Unit component: [%4.4s]\n", (char *)&err);
|
|
goto err_out;
|
|
}
|
|
|
|
// Initialize AudioUnit
|
|
err = AudioUnitInitialize(ao->theOutputUnit);
|
|
if (err) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Unable to initialize Output Unit component: [%4.4s]\n", (char *)&err);
|
|
goto err_out1;
|
|
}
|
|
|
|
size = sizeof(AudioStreamBasicDescription);
|
|
err = AudioUnitSetProperty(ao->theOutputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &inDesc, size);
|
|
|
|
if (err) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Unable to set the input format: [%4.4s]\n", (char *)&err);
|
|
goto err_out2;
|
|
}
|
|
|
|
size = sizeof(UInt32);
|
|
err = AudioUnitGetProperty(ao->theOutputUnit, kAudioDevicePropertyBufferSize, kAudioUnitScope_Input, 0, &maxFrames, &size);
|
|
|
|
if (err)
|
|
{
|
|
ao_msg(MSGT_AO,MSGL_WARN, "AudioUnitGetProperty returned [%4.4s] when getting kAudioDevicePropertyBufferSize\n", (char *)&err);
|
|
goto err_out2;
|
|
}
|
|
|
|
//Set the Current Device to the Default Output Unit.
|
|
err = AudioUnitSetProperty(ao->theOutputUnit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &ao->i_selected_dev, sizeof(ao->i_selected_dev));
|
|
|
|
ao->chunk_size = maxFrames;//*inDesc.mBytesPerFrame;
|
|
|
|
ao_data.samplerate = inDesc.mSampleRate;
|
|
ao_data.channels = inDesc.mChannelsPerFrame;
|
|
ao_data.bps = ao_data.samplerate * inDesc.mBytesPerFrame;
|
|
ao_data.outburst = ao->chunk_size;
|
|
ao_data.buffersize = ao_data.bps;
|
|
|
|
ao->num_chunks = (ao_data.bps+ao->chunk_size-1)/ao->chunk_size;
|
|
ao->buffer_len = ao->num_chunks * ao->chunk_size;
|
|
ao->buffer = av_fifo_alloc(ao->buffer_len);
|
|
|
|
ao_msg(MSGT_AO,MSGL_V, "using %5d chunks of %d bytes (buffer len %d bytes)\n", (int)ao->num_chunks, (int)ao->chunk_size, (int)ao->buffer_len);
|
|
|
|
renderCallback.inputProc = theRenderProc;
|
|
renderCallback.inputProcRefCon = 0;
|
|
err = AudioUnitSetProperty(ao->theOutputUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &renderCallback, sizeof(AURenderCallbackStruct));
|
|
if (err) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Unable to set the render callback: [%4.4s]\n", (char *)&err);
|
|
goto err_out2;
|
|
}
|
|
|
|
reset();
|
|
|
|
return CONTROL_OK;
|
|
|
|
err_out2:
|
|
AudioUnitUninitialize(ao->theOutputUnit);
|
|
err_out1:
|
|
CloseComponent(ao->theOutputUnit);
|
|
err_out:
|
|
av_fifo_free(ao->buffer);
|
|
free(ao);
|
|
ao = NULL;
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Setup a encoded digital stream (SPDIF)
|
|
*****************************************************************************/
|
|
static int OpenSPDIF(void)
|
|
{
|
|
OSStatus err = noErr;
|
|
UInt32 i_param_size, b_mix = 0;
|
|
Boolean b_writeable = 0;
|
|
AudioStreamID *p_streams = NULL;
|
|
int i, i_streams = 0;
|
|
AudioObjectPropertyAddress property_address;
|
|
|
|
/* Start doing the SPDIF setup process. */
|
|
ao->b_digital = 1;
|
|
|
|
/* Hog the device. */
|
|
ao->i_hog_pid = getpid() ;
|
|
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertyHogMode,
|
|
sizeof(ao->i_hog_pid), &ao->i_hog_pid);
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "failed to set hogmode: [%4.4s]\n", (char *)&err);
|
|
ao->i_hog_pid = -1;
|
|
goto err_out;
|
|
}
|
|
|
|
property_address.mSelector = kAudioDevicePropertySupportsMixing;
|
|
property_address.mScope = kAudioObjectPropertyScopeGlobal;
|
|
property_address.mElement = kAudioObjectPropertyElementMaster;
|
|
|
|
/* Set mixable to false if we are allowed to. */
|
|
if (AudioObjectHasProperty(ao->i_selected_dev, &property_address)) {
|
|
/* Set mixable to false if we are allowed to. */
|
|
err = IsAudioPropertySettable(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
&b_writeable);
|
|
err = GetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
sizeof(UInt32), &b_mix);
|
|
if (err == noErr && b_writeable)
|
|
{
|
|
b_mix = 0;
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
sizeof(UInt32), &b_mix);
|
|
ao->b_changed_mixing = 1;
|
|
}
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "failed to set mixmode: [%4.4s]\n", (char *)&err);
|
|
goto err_out;
|
|
}
|
|
}
|
|
|
|
/* Get a list of all the streams on this device. */
|
|
i_param_size = GetAudioPropertyArray(ao->i_selected_dev,
|
|
kAudioDevicePropertyStreams,
|
|
kAudioDevicePropertyScopeOutput,
|
|
(void **)&p_streams);
|
|
|
|
if (!i_param_size) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "could not get number of streams.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
i_streams = i_param_size / sizeof(AudioStreamID);
|
|
|
|
ao_msg(MSGT_AO, MSGL_V, "current device stream number: %d\n", i_streams);
|
|
|
|
for (i = 0; i < i_streams && ao->i_stream_index < 0; ++i)
|
|
{
|
|
/* Find a stream with a cac3 stream. */
|
|
AudioStreamRangedDescription *p_format_list = NULL;
|
|
int i_formats = 0, j = 0, b_digital = 0;
|
|
|
|
i_param_size = GetGlobalAudioPropertyArray(p_streams[i],
|
|
kAudioStreamPropertyAvailablePhysicalFormats,
|
|
(void **)&p_format_list);
|
|
|
|
if (!i_param_size) {
|
|
ao_msg(MSGT_AO, MSGL_WARN,
|
|
"Could not get number of stream formats.\n");
|
|
continue;
|
|
}
|
|
|
|
i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
|
|
|
|
/* Check if one of the supported formats is a digital format. */
|
|
for (j = 0; j < i_formats; ++j)
|
|
{
|
|
if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
|
|
p_format_list[j].mFormat.mFormatID == 'iac3' ||
|
|
p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
|
|
p_format_list[j].mFormat.mFormatID == kAudioFormatAC3)
|
|
{
|
|
b_digital = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (b_digital)
|
|
{
|
|
/* If this stream supports a digital (cac3) format, then set it. */
|
|
int i_requested_rate_format = -1;
|
|
int i_current_rate_format = -1;
|
|
int i_backup_rate_format = -1;
|
|
|
|
ao->i_stream_id = p_streams[i];
|
|
ao->i_stream_index = i;
|
|
|
|
if (ao->b_revert == 0)
|
|
{
|
|
/* Retrieve the original format of this stream first if not done so already. */
|
|
err = GetAudioProperty(ao->i_stream_id,
|
|
kAudioStreamPropertyPhysicalFormat,
|
|
sizeof(ao->sfmt_revert), &ao->sfmt_revert);
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN,
|
|
"Could not retrieve the original stream format: [%4.4s]\n",
|
|
(char *)&err);
|
|
free(p_format_list);
|
|
continue;
|
|
}
|
|
ao->b_revert = 1;
|
|
}
|
|
|
|
for (j = 0; j < i_formats; ++j)
|
|
if (p_format_list[j].mFormat.mFormatID == 'IAC3' ||
|
|
p_format_list[j].mFormat.mFormatID == 'iac3' ||
|
|
p_format_list[j].mFormat.mFormatID == kAudioFormat60958AC3 ||
|
|
p_format_list[j].mFormat.mFormatID == kAudioFormatAC3)
|
|
{
|
|
if (p_format_list[j].mFormat.mSampleRate == ao->stream_format.mSampleRate)
|
|
{
|
|
i_requested_rate_format = j;
|
|
break;
|
|
}
|
|
if (p_format_list[j].mFormat.mSampleRate == ao->sfmt_revert.mSampleRate)
|
|
i_current_rate_format = j;
|
|
else if (i_backup_rate_format < 0 || p_format_list[j].mFormat.mSampleRate > p_format_list[i_backup_rate_format].mFormat.mSampleRate)
|
|
i_backup_rate_format = j;
|
|
}
|
|
|
|
if (i_requested_rate_format >= 0) /* We prefer to output at the samplerate of the original audio. */
|
|
ao->stream_format = p_format_list[i_requested_rate_format].mFormat;
|
|
else if (i_current_rate_format >= 0) /* If not possible, we will try to use the current samplerate of the device. */
|
|
ao->stream_format = p_format_list[i_current_rate_format].mFormat;
|
|
else ao->stream_format = p_format_list[i_backup_rate_format].mFormat; /* And if we have to, any digital format will be just fine (highest rate possible). */
|
|
}
|
|
free(p_format_list);
|
|
}
|
|
free(p_streams);
|
|
|
|
if (ao->i_stream_index < 0)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN,
|
|
"Cannot find any digital output stream format when OpenSPDIF().\n");
|
|
goto err_out;
|
|
}
|
|
|
|
print_format(MSGL_V, "original stream format:", &ao->sfmt_revert);
|
|
|
|
if (!AudioStreamChangeFormat(ao->i_stream_id, ao->stream_format))
|
|
goto err_out;
|
|
|
|
property_address.mSelector = kAudioDevicePropertyDeviceHasChanged;
|
|
property_address.mScope = kAudioObjectPropertyScopeGlobal;
|
|
property_address.mElement = kAudioObjectPropertyElementMaster;
|
|
|
|
err = AudioObjectAddPropertyListener(ao->i_selected_dev,
|
|
&property_address,
|
|
DeviceListener,
|
|
NULL);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceAddPropertyListener for kAudioDevicePropertyDeviceHasChanged failed: [%4.4s]\n", (char *)&err);
|
|
|
|
|
|
/* FIXME: If output stream is not native byte-order, we need change endian somewhere. */
|
|
/* Although there's no such case reported. */
|
|
#if HAVE_BIGENDIAN
|
|
if (!(ao->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian))
|
|
#else
|
|
/* tell mplayer that we need a byteswap on AC3 streams, */
|
|
if (ao->stream_format.mFormatID & kAudioFormat60958AC3)
|
|
ao_data.format = AF_FORMAT_AC3_LE;
|
|
|
|
if (ao->stream_format.mFormatFlags & kAudioFormatFlagIsBigEndian)
|
|
#endif
|
|
ao_msg(MSGT_AO, MSGL_WARN,
|
|
"Output stream has non-native byte order, digital output may fail.\n");
|
|
|
|
/* For ac3/dts, just use packet size 6144 bytes as chunk size. */
|
|
ao->chunk_size = ao->stream_format.mBytesPerPacket;
|
|
|
|
ao_data.samplerate = ao->stream_format.mSampleRate;
|
|
ao_data.channels = ao->stream_format.mChannelsPerFrame;
|
|
ao_data.bps = ao_data.samplerate * (ao->stream_format.mBytesPerPacket/ao->stream_format.mFramesPerPacket);
|
|
ao_data.outburst = ao->chunk_size;
|
|
ao_data.buffersize = ao_data.bps;
|
|
|
|
ao->num_chunks = (ao_data.bps+ao->chunk_size-1)/ao->chunk_size;
|
|
ao->buffer_len = ao->num_chunks * ao->chunk_size;
|
|
ao->buffer = av_fifo_alloc(ao->buffer_len);
|
|
|
|
ao_msg(MSGT_AO,MSGL_V, "using %5d chunks of %d bytes (buffer len %d bytes)\n", (int)ao->num_chunks, (int)ao->chunk_size, (int)ao->buffer_len);
|
|
|
|
|
|
/* Create IOProc callback. */
|
|
err = AudioDeviceCreateIOProcID(ao->i_selected_dev,
|
|
(AudioDeviceIOProc)RenderCallbackSPDIF,
|
|
(void *)ao,
|
|
&ao->renderCallback);
|
|
|
|
if (err != noErr || ao->renderCallback == NULL)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceAddIOProc failed: [%4.4s]\n", (char *)&err);
|
|
goto err_out1;
|
|
}
|
|
|
|
reset();
|
|
|
|
return CONTROL_TRUE;
|
|
|
|
err_out1:
|
|
if (ao->b_revert)
|
|
AudioStreamChangeFormat(ao->i_stream_id, ao->sfmt_revert);
|
|
err_out:
|
|
if (ao->b_changed_mixing && ao->sfmt_revert.mFormatID != kAudioFormat60958AC3)
|
|
{
|
|
int b_mix = 1;
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
sizeof(int), &b_mix);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "failed to set mixmode: [%4.4s]\n",
|
|
(char *)&err);
|
|
}
|
|
if (ao->i_hog_pid == getpid())
|
|
{
|
|
ao->i_hog_pid = -1;
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertyHogMode,
|
|
sizeof(ao->i_hog_pid), &ao->i_hog_pid);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Could not release hogmode: [%4.4s]\n",
|
|
(char *)&err);
|
|
}
|
|
av_fifo_free(ao->buffer);
|
|
free(ao);
|
|
ao = NULL;
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* AudioDeviceSupportsDigital: Check i_dev_id for digital stream support.
|
|
*****************************************************************************/
|
|
static int AudioDeviceSupportsDigital( AudioDeviceID i_dev_id )
|
|
{
|
|
UInt32 i_param_size = 0;
|
|
AudioStreamID *p_streams = NULL;
|
|
int i = 0, i_streams = 0;
|
|
int b_return = CONTROL_FALSE;
|
|
|
|
/* Retrieve all the output streams. */
|
|
i_param_size = GetAudioPropertyArray(i_dev_id,
|
|
kAudioDevicePropertyStreams,
|
|
kAudioDevicePropertyScopeOutput,
|
|
(void **)&p_streams);
|
|
|
|
if (!i_param_size) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "could not get number of streams.\n");
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
i_streams = i_param_size / sizeof(AudioStreamID);
|
|
|
|
for (i = 0; i < i_streams; ++i)
|
|
{
|
|
if (AudioStreamSupportsDigital(p_streams[i]))
|
|
b_return = CONTROL_OK;
|
|
}
|
|
|
|
free(p_streams);
|
|
return b_return;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* AudioStreamSupportsDigital: Check i_stream_id for digital stream support.
|
|
*****************************************************************************/
|
|
static int AudioStreamSupportsDigital( AudioStreamID i_stream_id )
|
|
{
|
|
UInt32 i_param_size;
|
|
AudioStreamRangedDescription *p_format_list = NULL;
|
|
int i, i_formats, b_return = CONTROL_FALSE;
|
|
|
|
/* Retrieve all the stream formats supported by each output stream. */
|
|
i_param_size = GetGlobalAudioPropertyArray(i_stream_id,
|
|
kAudioStreamPropertyAvailablePhysicalFormats,
|
|
(void **)&p_format_list);
|
|
|
|
if (!i_param_size) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Could not get number of stream formats.\n");
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
i_formats = i_param_size / sizeof(AudioStreamRangedDescription);
|
|
|
|
for (i = 0; i < i_formats; ++i)
|
|
{
|
|
print_format(MSGL_V, "supported format:", &(p_format_list[i].mFormat));
|
|
|
|
if (p_format_list[i].mFormat.mFormatID == 'IAC3' ||
|
|
p_format_list[i].mFormat.mFormatID == 'iac3' ||
|
|
p_format_list[i].mFormat.mFormatID == kAudioFormat60958AC3 ||
|
|
p_format_list[i].mFormat.mFormatID == kAudioFormatAC3)
|
|
b_return = CONTROL_OK;
|
|
}
|
|
|
|
free(p_format_list);
|
|
return b_return;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* AudioStreamChangeFormat: Change i_stream_id to change_format
|
|
*****************************************************************************/
|
|
static int AudioStreamChangeFormat( AudioStreamID i_stream_id, AudioStreamBasicDescription change_format )
|
|
{
|
|
OSStatus err = noErr;
|
|
int i;
|
|
AudioObjectPropertyAddress property_address;
|
|
|
|
static volatile int stream_format_changed;
|
|
stream_format_changed = 0;
|
|
|
|
print_format(MSGL_V, "setting stream format:", &change_format);
|
|
|
|
/* Install the callback. */
|
|
property_address.mSelector = kAudioStreamPropertyPhysicalFormat;
|
|
property_address.mScope = kAudioObjectPropertyScopeGlobal;
|
|
property_address.mElement = kAudioObjectPropertyElementMaster;
|
|
|
|
err = AudioObjectAddPropertyListener(i_stream_id,
|
|
&property_address,
|
|
StreamListener,
|
|
(void *)&stream_format_changed);
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioStreamAddPropertyListener failed: [%4.4s]\n", (char *)&err);
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
/* Change the format. */
|
|
err = SetAudioProperty(i_stream_id,
|
|
kAudioStreamPropertyPhysicalFormat,
|
|
sizeof(AudioStreamBasicDescription), &change_format);
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "could not set the stream format: [%4.4s]\n", (char *)&err);
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
/* The AudioStreamSetProperty is not only asynchronious,
|
|
* it is also not Atomic, in its behaviour.
|
|
* Therefore we check 5 times before we really give up.
|
|
* FIXME: failing isn't actually implemented yet. */
|
|
for (i = 0; i < 5; ++i)
|
|
{
|
|
AudioStreamBasicDescription actual_format;
|
|
int j;
|
|
for (j = 0; !stream_format_changed && j < 50; ++j)
|
|
usec_sleep(10000);
|
|
if (stream_format_changed)
|
|
stream_format_changed = 0;
|
|
else
|
|
ao_msg(MSGT_AO, MSGL_V, "reached timeout\n" );
|
|
|
|
err = GetAudioProperty(i_stream_id,
|
|
kAudioStreamPropertyPhysicalFormat,
|
|
sizeof(AudioStreamBasicDescription), &actual_format);
|
|
|
|
print_format(MSGL_V, "actual format in use:", &actual_format);
|
|
if (actual_format.mSampleRate == change_format.mSampleRate &&
|
|
actual_format.mFormatID == change_format.mFormatID &&
|
|
actual_format.mFramesPerPacket == change_format.mFramesPerPacket)
|
|
{
|
|
/* The right format is now active. */
|
|
break;
|
|
}
|
|
/* We need to check again. */
|
|
}
|
|
|
|
/* Removing the property listener. */
|
|
err = AudioObjectRemovePropertyListener(i_stream_id,
|
|
&property_address,
|
|
StreamListener,
|
|
(void *)&stream_format_changed);
|
|
if (err != noErr)
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioStreamRemovePropertyListener failed: [%4.4s]\n", (char *)&err);
|
|
return CONTROL_FALSE;
|
|
}
|
|
|
|
return CONTROL_TRUE;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* RenderCallbackSPDIF: callback for SPDIF audio output
|
|
*****************************************************************************/
|
|
static OSStatus RenderCallbackSPDIF( AudioDeviceID inDevice,
|
|
const AudioTimeStamp * inNow,
|
|
const void * inInputData,
|
|
const AudioTimeStamp * inInputTime,
|
|
AudioBufferList * outOutputData,
|
|
const AudioTimeStamp * inOutputTime,
|
|
void * threadGlobals )
|
|
{
|
|
int amt = av_fifo_size(ao->buffer);
|
|
int req = outOutputData->mBuffers[ao->i_stream_index].mDataByteSize;
|
|
|
|
if (amt > req)
|
|
amt = req;
|
|
if (amt)
|
|
read_buffer(ao->b_muted ? NULL : (unsigned char *)outOutputData->mBuffers[ao->i_stream_index].mData, amt);
|
|
|
|
return noErr;
|
|
}
|
|
|
|
|
|
static int play(void* output_samples,int num_bytes,int flags)
|
|
{
|
|
int wrote, b_digital;
|
|
SInt32 exit_reason;
|
|
|
|
// Check whether we need to reset the digital output stream.
|
|
if (ao->b_digital && ao->b_stream_format_changed)
|
|
{
|
|
ao->b_stream_format_changed = 0;
|
|
b_digital = AudioStreamSupportsDigital(ao->i_stream_id);
|
|
if (b_digital)
|
|
{
|
|
/* Current stream supports digital format output, let's set it. */
|
|
ao_msg(MSGT_AO, MSGL_V,
|
|
"Detected current stream supports digital, try to restore digital output...\n");
|
|
|
|
if (!AudioStreamChangeFormat(ao->i_stream_id, ao->stream_format))
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Restoring digital output failed.\n");
|
|
}
|
|
else
|
|
{
|
|
ao_msg(MSGT_AO, MSGL_WARN, "Restoring digital output succeeded.\n");
|
|
reset();
|
|
}
|
|
}
|
|
else
|
|
ao_msg(MSGT_AO, MSGL_V, "Detected current stream does not support digital.\n");
|
|
}
|
|
|
|
wrote=write_buffer(output_samples, num_bytes);
|
|
audio_resume();
|
|
|
|
do {
|
|
exit_reason = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.01, true);
|
|
} while (exit_reason == kCFRunLoopRunHandledSource);
|
|
|
|
return wrote;
|
|
}
|
|
|
|
/* set variables and buffer to initial state */
|
|
static void reset(void)
|
|
{
|
|
audio_pause();
|
|
av_fifo_reset(ao->buffer);
|
|
}
|
|
|
|
|
|
/* return available space */
|
|
static int get_space(void)
|
|
{
|
|
return ao->buffer_len - av_fifo_size(ao->buffer);
|
|
}
|
|
|
|
|
|
/* return delay until audio is played */
|
|
static float get_delay(void)
|
|
{
|
|
// inaccurate, should also contain the data buffered e.g. by the OS
|
|
return (float)av_fifo_size(ao->buffer)/(float)ao_data.bps;
|
|
}
|
|
|
|
|
|
/* unload plugin and deregister from coreaudio */
|
|
static void uninit(int immed)
|
|
{
|
|
OSStatus err = noErr;
|
|
|
|
if (!immed) {
|
|
long long timeleft=(1000000LL*av_fifo_size(ao->buffer))/ao_data.bps;
|
|
ao_msg(MSGT_AO,MSGL_DBG2, "%d bytes left @%d bps (%d usec)\n", av_fifo_size(ao->buffer), ao_data.bps, (int)timeleft);
|
|
usec_sleep((int)timeleft);
|
|
}
|
|
|
|
if (!ao->b_digital) {
|
|
AudioOutputUnitStop(ao->theOutputUnit);
|
|
AudioUnitUninitialize(ao->theOutputUnit);
|
|
CloseComponent(ao->theOutputUnit);
|
|
}
|
|
else {
|
|
/* Stop device. */
|
|
err = AudioDeviceStop(ao->i_selected_dev, ao->renderCallback);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceStop failed: [%4.4s]\n", (char *)&err);
|
|
|
|
/* Remove IOProc callback. */
|
|
err = AudioDeviceDestroyIOProcID(ao->i_selected_dev, ao->renderCallback);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceRemoveIOProc failed: [%4.4s]\n", (char *)&err);
|
|
|
|
if (ao->b_revert)
|
|
AudioStreamChangeFormat(ao->i_stream_id, ao->sfmt_revert);
|
|
|
|
if (ao->b_changed_mixing && ao->sfmt_revert.mFormatID != kAudioFormat60958AC3)
|
|
{
|
|
UInt32 b_mix;
|
|
Boolean b_writeable = 0;
|
|
/* Revert mixable to true if we are allowed to. */
|
|
err = IsAudioPropertySettable(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
&b_writeable);
|
|
err = GetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
sizeof(UInt32), &b_mix);
|
|
if (err == noErr && b_writeable)
|
|
{
|
|
b_mix = 1;
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertySupportsMixing,
|
|
sizeof(UInt32), &b_mix);
|
|
}
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "failed to set mixmode: [%4.4s]\n", (char *)&err);
|
|
}
|
|
if (ao->i_hog_pid == getpid())
|
|
{
|
|
ao->i_hog_pid = -1;
|
|
err = SetAudioProperty(ao->i_selected_dev,
|
|
kAudioDevicePropertyHogMode,
|
|
sizeof(ao->i_hog_pid), &ao->i_hog_pid);
|
|
if (err != noErr) ao_msg(MSGT_AO, MSGL_WARN, "Could not release hogmode: [%4.4s]\n", (char *)&err);
|
|
}
|
|
}
|
|
|
|
av_fifo_free(ao->buffer);
|
|
free(ao);
|
|
ao = NULL;
|
|
}
|
|
|
|
|
|
/* stop playing, keep buffers (for pause) */
|
|
static void audio_pause(void)
|
|
{
|
|
OSErr err=noErr;
|
|
|
|
/* Stop callback. */
|
|
if (!ao->b_digital)
|
|
{
|
|
err=AudioOutputUnitStop(ao->theOutputUnit);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO,MSGL_WARN, "AudioOutputUnitStop returned [%4.4s]\n", (char *)&err);
|
|
}
|
|
else
|
|
{
|
|
err = AudioDeviceStop(ao->i_selected_dev, ao->renderCallback);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceStop failed: [%4.4s]\n", (char *)&err);
|
|
}
|
|
ao->paused = 1;
|
|
}
|
|
|
|
|
|
/* resume playing, after audio_pause() */
|
|
static void audio_resume(void)
|
|
{
|
|
OSErr err=noErr;
|
|
|
|
if (!ao->paused)
|
|
return;
|
|
|
|
/* Start callback. */
|
|
if (!ao->b_digital)
|
|
{
|
|
err = AudioOutputUnitStart(ao->theOutputUnit);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO,MSGL_WARN, "AudioOutputUnitStart returned [%4.4s]\n", (char *)&err);
|
|
}
|
|
else
|
|
{
|
|
err = AudioDeviceStart(ao->i_selected_dev, ao->renderCallback);
|
|
if (err != noErr)
|
|
ao_msg(MSGT_AO, MSGL_WARN, "AudioDeviceStart failed: [%4.4s]\n", (char *)&err);
|
|
}
|
|
ao->paused = 0;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* StreamListener
|
|
*****************************************************************************/
|
|
static OSStatus StreamListener( AudioObjectID inObjectID,
|
|
UInt32 inNumberAddresses,
|
|
const AudioObjectPropertyAddress inAddresses[],
|
|
void *inClientData )
|
|
{
|
|
for (int i=0; i < inNumberAddresses; ++i)
|
|
{
|
|
if (inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "got notify kAudioStreamPropertyPhysicalFormat changed.\n");
|
|
if (inClientData)
|
|
*(volatile int *)inClientData = 1;
|
|
break;
|
|
}
|
|
}
|
|
return noErr;
|
|
}
|
|
|
|
static OSStatus DeviceListener( AudioObjectID inObjectID,
|
|
UInt32 inNumberAddresses,
|
|
const AudioObjectPropertyAddress inAddresses[],
|
|
void *inClientData )
|
|
{
|
|
for (int i=0; i < inNumberAddresses; ++i)
|
|
{
|
|
if (inAddresses[i].mSelector == kAudioDevicePropertyDeviceHasChanged) {
|
|
ao_msg(MSGT_AO, MSGL_WARN, "got notify kAudioDevicePropertyDeviceHasChanged.\n");
|
|
ao->b_stream_format_changed = 1;
|
|
break;
|
|
}
|
|
}
|
|
return noErr;
|
|
}
|