rename ao_coreaudio_device.c -> ao_coreaudio_exclusive.c

This is so that the source file name matches the AO name

1 files changed, 0 insertions, 667 deletions

diff --git a/audio/out/ao_coreaudio_device.c b/audio/out/ao_coreaudio_device.c
deleted file mode 100644
index 49560a2e80..0000000000
--- a/audio/out/ao_coreaudio_device.c
+++ /dev/null
@@ -1,667 +0,0 @@
-/*
- * CoreAudio audio output driver for Mac OS X
- *
- * original copyright (C) Timothy J. Wood - Aug 2000
- * ported to MPlayer libao2 by Dan Christiansen
- *
- * Chris Roccati
- * Stefano Pigozzi
- *
- * The S/PDIF part of the code is based on the auhal audio output
- * module from VideoLAN:
- * Copyright (c) 2006 Derk-Jan Hartman <hartman at videolan dot org>
- *
- * This file is part of MPlayer.
- *
- * MPlayer is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * along with MPlayer; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/*
- * The MacOS X CoreAudio framework doesn't mesh as simply as some
- * simpler frameworks do.  This is due to the fact that CoreAudio pulls
- * audio samples rather than having them pushed at it (which is nice
- * when you are wanting to do good buffering of audio).
- */
-
-#include "config.h"
-#include "ao.h"
-#include "internal.h"
-#include "audio/format.h"
-#include "osdep/timer.h"
-#include "options/m_option.h"
-#include "misc/ring.h"
-#include "common/msg.h"
-#include "audio/out/ao_coreaudio_properties.h"
-#include "audio/out/ao_coreaudio_utils.h"
-
-static void audio_pause(struct ao *ao);
-static void audio_resume(struct ao *ao);
-static void reset(struct ao *ao);
-
-static bool ca_format_is_digital(AudioStreamBasicDescription asbd)
-{
-    switch (asbd.mFormatID)
-    case 'IAC3':
-    case 'iac3':
-    case  kAudioFormat60958AC3:
-    case  kAudioFormatAC3:
-        return true;
-    return false;
-}
-
-static bool ca_stream_supports_digital(struct ao *ao, AudioStreamID stream)
-{
-    AudioStreamRangedDescription *formats = NULL;
-    size_t n_formats;
-
-    OSStatus err =
-        CA_GET_ARY(stream, kAudioStreamPropertyAvailablePhysicalFormats,
-                   &formats, &n_formats);
-
-    CHECK_CA_ERROR("Could not get number of stream formats.");
-
-    for (int i = 0; i < n_formats; i++) {
-        AudioStreamBasicDescription asbd = formats[i].mFormat;
-        ca_print_asbd(ao, "supported format:", &(asbd));
-        if (ca_format_is_digital(asbd)) {
-            talloc_free(formats);
-            return true;
-        }
-    }
-
-    talloc_free(formats);
-coreaudio_error:
-    return false;
-}
-
-static bool ca_device_supports_digital(struct ao *ao, AudioDeviceID device)
-{
-    AudioStreamID *streams = NULL;
-    size_t n_streams;
-
-    /* Retrieve all the output streams. */
-    OSStatus err =
-        CA_GET_ARY_O(device, kAudioDevicePropertyStreams, &streams, &n_streams);
-
-    CHECK_CA_ERROR("could not get number of streams.");
-
-    for (int i = 0; i < n_streams; i++) {
-        if (ca_stream_supports_digital(ao, streams[i])) {
-            talloc_free(streams);
-            return true;
-        }
-    }
-
-    talloc_free(streams);
-
-coreaudio_error:
-    return false;
-}
-
-static OSStatus ca_property_listener(
-    AudioObjectPropertySelector selector,
-    AudioObjectID object, uint32_t n_addresses,
-    const AudioObjectPropertyAddress addresses[],
-    void *data)
-{
-    void *talloc_ctx = talloc_new(NULL);
-
-    for (int i = 0; i < n_addresses; i++) {
-        if (addresses[i].mSelector == selector) {
-            if (data) *(volatile int *)data = 1;
-            break;
-        }
-    }
-    talloc_free(talloc_ctx);
-    return noErr;
-}
-
-static OSStatus ca_stream_listener(
-    AudioObjectID object, uint32_t n_addresses,
-    const AudioObjectPropertyAddress addresses[],
-    void *data)
-{
-    return ca_property_listener(kAudioStreamPropertyPhysicalFormat,
-                                object, n_addresses, addresses, data);
-}
-
-static OSStatus ca_device_listener(
-    AudioObjectID object, uint32_t n_addresses,
-    const AudioObjectPropertyAddress addresses[],
-    void *data)
-{
-    return ca_property_listener(kAudioDevicePropertyDeviceHasChanged,
-                                object, n_addresses, addresses, data);
-}
-
-static OSStatus ca_lock_device(AudioDeviceID device, pid_t *pid) {
-    *pid = getpid();
-    OSStatus err = CA_SET(device, kAudioDevicePropertyHogMode, pid);
-    if (err != noErr)
-        *pid = -1;
-
-    return err;
-}
-
-static OSStatus ca_unlock_device(AudioDeviceID device, pid_t *pid) {
-    if (*pid == getpid()) {
-        *pid = -1;
-        return CA_SET(device, kAudioDevicePropertyHogMode, &pid);
-    }
-    return noErr;
-}
-
-static OSStatus ca_change_mixing(struct ao *ao, AudioDeviceID device,
-                                 uint32_t val, bool *changed) {
-    *changed = false;
-
-    AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
-        .mSelector = kAudioDevicePropertySupportsMixing,
-        .mScope    = kAudioObjectPropertyScopeGlobal,
-        .mElement  = kAudioObjectPropertyElementMaster,
-    };
-
-    if (AudioObjectHasProperty(device, &p_addr)) {
-        OSStatus err;
-        Boolean writeable = 0;
-        err = CA_SETTABLE(device, kAudioDevicePropertySupportsMixing,
-                          &writeable);
-
-        if (!CHECK_CA_WARN("can't tell if mixing property is settable")) {
-            return err;
-        }
-
-        if (!writeable)
-            return noErr;
-
-        err = CA_SET(device, kAudioDevicePropertySupportsMixing, &val);
-        if (err != noErr)
-            return err;
-
-        if (!CHECK_CA_WARN("can't set mix mode")) {
-            return err;
-        }
-
-        *changed = true;
-    }
-
-    return noErr;
-}
-
-static OSStatus ca_disable_mixing(struct ao *ao,
-                                  AudioDeviceID device, bool *changed) {
-    return ca_change_mixing(ao, device, 0, changed);
-}
-
-static OSStatus ca_enable_mixing(struct ao *ao,
-                                 AudioDeviceID device, bool changed) {
-    if (changed) {
-        bool dont_care = false;
-        return ca_change_mixing(ao, device, 1, &dont_care);
-    }
-
-    return noErr;
-}
-
-static OSStatus ca_change_device_listening(AudioDeviceID device,
-                                           void *flag, bool enabled)
-{
-    AudioObjectPropertyAddress p_addr = (AudioObjectPropertyAddress) {
-        .mSelector = kAudioDevicePropertyDeviceHasChanged,
-        .mScope    = kAudioObjectPropertyScopeGlobal,
-        .mElement  = kAudioObjectPropertyElementMaster,
-    };
-
-    if (enabled) {
-        return AudioObjectAddPropertyListener(
-            device, &p_addr, ca_device_listener, flag);
-    } else {
-        return AudioObjectRemovePropertyListener(
-            device, &p_addr, ca_device_listener, flag);
-    }
-}
-
-static OSStatus ca_enable_device_listener(AudioDeviceID device, void *flag) {
-    return ca_change_device_listening(device, flag, true);
-}
-
-static OSStatus ca_disable_device_listener(AudioDeviceID device, void *flag) {
-    return ca_change_device_listening(device, flag, false);
-}
-
-static bool ca_change_format(struct ao *ao, AudioStreamID stream,
-                             AudioStreamBasicDescription change_format)
-{
-    OSStatus err = noErr;
-    AudioObjectPropertyAddress p_addr;
-    volatile int stream_format_changed = 0;
-
-    ca_print_asbd(ao, "setting stream format:", &change_format);
-
-    /* Install the callback. */
-    p_addr = (AudioObjectPropertyAddress) {
-        .mSelector = kAudioStreamPropertyPhysicalFormat,
-        .mScope    = kAudioObjectPropertyScopeGlobal,
-        .mElement  = kAudioObjectPropertyElementMaster,
-    };
-
-    err = AudioObjectAddPropertyListener(stream, &p_addr, ca_stream_listener,
-                                         (void *)&stream_format_changed);
-    if (!CHECK_CA_WARN("can't add property listener during format change")) {
-        return false;
-    }
-
-    /* Change the format. */
-    err = CA_SET(stream, kAudioStreamPropertyPhysicalFormat, &change_format);
-    if (!CHECK_CA_WARN("error changing physical format")) {
-        return 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. */
-    bool format_set = false;
-    for (int i = 0; !format_set && i < 5; i++) {
-        for (int j = 0; !stream_format_changed && j < 50; j++)
-            mp_sleep_us(10000);
-
-        if (stream_format_changed) {
-            stream_format_changed = 0;
-        } else {
-            MP_VERBOSE(ao, "reached timeout\n");
-        }
-
-        AudioStreamBasicDescription actual_format;
-        err = CA_GET(stream, kAudioStreamPropertyPhysicalFormat, &actual_format);
-
-        ca_print_asbd(ao, "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) {
-            format_set = true;
-        }
-    }
-
-    err = AudioObjectRemovePropertyListener(stream, &p_addr, ca_stream_listener,
-                                            (void *)&stream_format_changed);
-
-    if (!CHECK_CA_WARN("can't remove property listener")) {
-        return false;
-    }
-
-    return format_set;
-}
-
-
-struct priv {
-    AudioDeviceID device;   // selected device
-
-    bool paused;
-
-    struct mp_ring *buffer;
-
-    // digital render callback
-    AudioDeviceIOProcID render_cb;
-
-    // pid set for hog mode, (-1) means that hog mode on the device was
-    // released. hog mode is exclusive access to a device
-    pid_t hog_pid;
-
-    // stream selected for digital playback by the detection in init
-    AudioStreamID stream;
-
-    // stream index in an AudioBufferList
-    int stream_idx;
-
-    // format we changed the stream to: for the digital case each application
-    // sets the stream format for a device to what it needs
-    AudioStreamBasicDescription stream_asbd;
-    AudioStreamBasicDescription original_asbd;
-
-    bool changed_mixing;
-    int stream_asbd_changed;
-    bool muted;
-};
-
-static int get_ring_size(struct ao *ao)
-{
-    return af_fmt_seconds_to_bytes(
-            ao->format, 0.5, ao->channels.num, ao->samplerate);
-}
-
-static OSStatus render_cb_digital(
-        AudioDeviceID device, const AudioTimeStamp *ts,
-        const void *in_data, const AudioTimeStamp *in_ts,
-        AudioBufferList *out_data, const AudioTimeStamp *out_ts, void *ctx)
-{
-    struct ao *ao    = ctx;
-    struct priv *p   = ao->priv;
-    AudioBuffer buf  = out_data->mBuffers[p->stream_idx];
-    int requested    = buf.mDataByteSize;
-
-    if (p->muted)
-        mp_ring_drain(p->buffer, requested);
-    else
-        mp_ring_read(p->buffer, buf.mData, requested);
-
-    return noErr;
-}
-
-static int control(struct ao *ao, enum aocontrol cmd, void *arg)
-{
-    struct priv *p = ao->priv;
-    ao_control_vol_t *control_vol;
-    switch (cmd) {
-    case AOCONTROL_GET_VOLUME:
-        control_vol = (ao_control_vol_t *)arg;
-        // Digital output has no volume adjust.
-        int digitalvol = p->muted ? 0 : 100;
-        *control_vol = (ao_control_vol_t) {
-            .left = digitalvol, .right = digitalvol,
-        };
-        return CONTROL_TRUE;
-
-    case AOCONTROL_SET_VOLUME:
-        control_vol = (ao_control_vol_t *)arg;
-        // Digital output can not set volume. Here we have to return true
-        // to make mixer forget it. Else mixer will add a soft filter,
-        // that's not we expected and the filter not support ac3 stream
-        // will cause mplayer die.
-
-        // Although not support set volume, but at least we support mute.
-        // MPlayer set mute by set volume to zero, we handle it.
-        if (control_vol->left == 0 && control_vol->right == 0)
-            p->muted = true;
-        else
-            p->muted = false;
-        return CONTROL_TRUE;
-
-    } // end switch
-    return CONTROL_UNKNOWN;
-}
-
-static int init_digital(struct ao *ao, AudioStreamBasicDescription asbd);
-
-static int init(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-
-    OSStatus err = ca_select_device(ao, ao->device, &p->device);
-    CHECK_CA_ERROR("failed to select device");
-
-    ao->format = af_fmt_from_planar(ao->format);
-
-    bool supports_digital = false;
-    /* Probe whether device support S/PDIF stream output if input is AC3 stream,
-     * or anything else IEC61937-framed. */
-    if (AF_FORMAT_IS_IEC61937(ao->format)) {
-        if (ca_device_supports_digital(ao, p->device))
-            supports_digital = true;
-    }
-
-    if (!supports_digital) {
-        MP_ERR(ao, "selected device doesn't support digital formats\n");
-        goto coreaudio_error;
-    } // closes if (!supports_digital)
-
-    // Build ASBD for the input format
-    AudioStreamBasicDescription asbd;
-    ca_fill_asbd(ao, &asbd);
-
-    return init_digital(ao, asbd);
-
-coreaudio_error:
-    return CONTROL_ERROR;
-}
-
-static int init_digital(struct ao *ao, AudioStreamBasicDescription asbd)
-{
-    struct priv *p = ao->priv;
-    OSStatus err = noErr;
-
-    uint32_t is_alive = 1;
-    err = CA_GET(p->device, kAudioDevicePropertyDeviceIsAlive, &is_alive);
-    CHECK_CA_WARN("could not check whether device is alive");
-
-    if (!is_alive)
-        MP_WARN(ao , "device is not alive\n");
-
-    err = ca_lock_device(p->device, &p->hog_pid);
-    CHECK_CA_WARN("failed to set hogmode");
-
-    err = ca_disable_mixing(ao, p->device, &p->changed_mixing);
-    CHECK_CA_WARN("failed to disable mixing");
-
-    AudioStreamID *streams;
-    size_t n_streams;
-
-    /* Get a list of all the streams on this device. */
-    err = CA_GET_ARY_O(p->device, kAudioDevicePropertyStreams,
-                       &streams, &n_streams);
-
-    CHECK_CA_ERROR("could not get number of streams");
-
-    for (int i = 0; i < n_streams && p->stream_idx < 0; i++) {
-        bool digital = ca_stream_supports_digital(ao, streams[i]);
-
-        if (digital) {
-            err = CA_GET(streams[i], kAudioStreamPropertyPhysicalFormat,
-                         &p->original_asbd);
-            if (!CHECK_CA_WARN("could not get stream's physical format to "
-                               "revert to, getting the next one"))
-                continue;
-
-            AudioStreamRangedDescription *formats;
-            size_t n_formats;
-
-            err = CA_GET_ARY(streams[i],
-                             kAudioStreamPropertyAvailablePhysicalFormats,
-                             &formats, &n_formats);
-
-            if (!CHECK_CA_WARN("could not get number of stream formats"))
-                continue; // try next one
-
-            int req_rate_format = -1;
-            int max_rate_format = -1;
-
-            p->stream = streams[i];
-            p->stream_idx = i;
-
-            for (int j = 0; j < n_formats; j++)
-                if (ca_format_is_digital(formats[j].mFormat)) {
-                    // select the digital format that has exactly the same
-                    // samplerate. If an exact match cannot be found, select
-                    // the format with highest samplerate as backup.
-                    if (formats[j].mFormat.mSampleRate == asbd.mSampleRate) {
-                        req_rate_format = j;
-                        break;
-                    } else if (max_rate_format < 0 ||
-                        formats[j].mFormat.mSampleRate >
-                        formats[max_rate_format].mFormat.mSampleRate)
-                        max_rate_format = j;
-                }
-
-            if (req_rate_format >= 0)
-                p->stream_asbd = formats[req_rate_format].mFormat;
-            else
-                p->stream_asbd = formats[max_rate_format].mFormat;
-
-            talloc_free(formats);
-        }
-    }
-
-    talloc_free(streams);
-
-    if (p->stream_idx < 0) {
-        MP_WARN(ao , "can't find any digital output stream format\n");
-        goto coreaudio_error;
-    }
-
-    if (!ca_change_format(ao, p->stream, p->stream_asbd))
-        goto coreaudio_error;
-
-    void *changed = (void *) &(p->stream_asbd_changed);
-    err = ca_enable_device_listener(p->device, changed);
-    CHECK_CA_ERROR("cannot install format change listener during init");
-
-    if (p->stream_asbd.mFormatFlags & kAudioFormatFlagIsBigEndian)
-        MP_WARN(ao, "stream has non-native byte order, output may fail\n");
-
-    ao->samplerate = p->stream_asbd.mSampleRate;
-    ao->bps = ao->samplerate *
-                  (p->stream_asbd.mBytesPerPacket /
-                   p->stream_asbd.mFramesPerPacket);
-
-    p->buffer = mp_ring_new(p, get_ring_size(ao));
-
-    err = AudioDeviceCreateIOProcID(p->device,
-                                    (AudioDeviceIOProc)render_cb_digital,
-                                    (void *)ao,
-                                    &p->render_cb);
-
-    CHECK_CA_ERROR("failed to register digital render callback");
-
-    reset(ao);
-
-    return CONTROL_TRUE;
-
-coreaudio_error:
-    err = ca_unlock_device(p->device, &p->hog_pid);
-    CHECK_CA_WARN("can't release hog mode");
-    return CONTROL_ERROR;
-}
-
-static int play(struct ao *ao, void **data, int samples, int flags)
-{
-    struct priv *p   = ao->priv;
-    void *output_samples = data[0];
-    int num_bytes = samples * ao->sstride;
-
-    // Check whether we need to reset the digital output stream.
-    if (p->stream_asbd_changed) {
-        p->stream_asbd_changed = 0;
-        if (ca_stream_supports_digital(ao, p->stream)) {
-            if (!ca_change_format(ao, p->stream, p->stream_asbd)) {
-                MP_WARN(ao , "can't restore digital output\n");
-            } else {
-                MP_WARN(ao, "restoring digital output succeeded.\n");
-                reset(ao);
-            }
-        }
-    }
-
-    int wrote = mp_ring_write(p->buffer, output_samples, num_bytes);
-    audio_resume(ao);
-
-    return wrote / ao->sstride;
-}
-
-static void reset(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-    audio_pause(ao);
-    mp_ring_reset(p->buffer);
-}
-
-static int get_space(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-    return mp_ring_available(p->buffer) / ao->sstride;
-}
-
-static float get_delay(struct ao *ao)
-{
-    // FIXME: should also report the delay of coreaudio itself (hardware +
-    // internal buffers)
-    struct priv *p = ao->priv;
-    return mp_ring_buffered(p->buffer) / (float)ao->bps;
-}
-
-static void uninit(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-    OSStatus err = noErr;
-
-    void *changed = (void *) &(p->stream_asbd_changed);
-    err = ca_disable_device_listener(p->device, changed);
-    CHECK_CA_WARN("can't remove device listener, this may cause a crash");
-
-    err = AudioDeviceStop(p->device, p->render_cb);
-    CHECK_CA_WARN("failed to stop audio device");
-
-    err = AudioDeviceDestroyIOProcID(p->device, p->render_cb);
-    CHECK_CA_WARN("failed to remove device render callback");
-
-    if (!ca_change_format(ao, p->stream, p->original_asbd))
-        MP_WARN(ao, "can't revert to original device format");
-
-    err = ca_enable_mixing(ao, p->device, p->changed_mixing);
-    CHECK_CA_WARN("can't re-enable mixing");
-
-    err = ca_unlock_device(p->device, &p->hog_pid);
-    CHECK_CA_WARN("can't release hog mode");
-}
-
-static void audio_pause(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-
-    if (p->paused)
-        return;
-
-    OSStatus err = AudioDeviceStop(p->device, p->render_cb);
-    CHECK_CA_WARN("can't stop digital device");
-
-    p->paused = true;
-}
-
-static void audio_resume(struct ao *ao)
-{
-    struct priv *p = ao->priv;
-
-    if (!p->paused)
-        return;
-
-    OSStatus err = AudioDeviceStart(p->device, p->render_cb);
-    CHECK_CA_WARN("can't start digital device");
-
-    p->paused = false;
-}
-
-#define OPT_BASE_STRUCT struct priv
-
-const struct ao_driver audio_out_coreaudio_exclusive = {
-    .description = "CoreAudio Exclusive Mode",
-    .name      = "coreaudio_exclusive",
-    .uninit    = uninit,
-    .init      = init,
-    .play      = play,
-    .control   = control,
-    .get_space = get_space,
-    .get_delay = get_delay,
-    .reset     = reset,
-    .pause     = audio_pause,
-    .resume    = audio_resume,
-    .list_devs = ca_get_device_list,
-    .priv_size = sizeof(struct priv),
-    .priv_defaults = &(const struct priv){
-        .muted = false,
-        .stream_asbd_changed = 0,
-        .hog_pid = -1,
-        .stream = 0,
-        .stream_idx = -1,
-        .changed_mixing = false,
-    },
-};