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mpv/audio/out/ao.h

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Add standard license headers. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@28378 b3059339-0415-0410-9bf9-f77b7e298cf2
2009-01-26 15:06:44 +00:00
/*
* 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
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
Add MPLAYER_ prefix to multiple inclusion guards. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26061 b3059339-0415-0410-9bf9-f77b7e298cf2
2008-02-22 09:09:46 +00:00
#ifndef MPLAYER_AUDIO_OUT_H
#define MPLAYER_AUDIO_OUT_H
- add some control (ao_oss, pl_extrastereo) - cosmetic git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6796 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-07-25 20:28:47 +00:00
audio: change external AO interface to "ao_[method](ao, ...)" Make the outside interface of audio output handling similar to the video output one. An AO object is first created, and then methods called with ao_[methodname](ao, args...). However internally libao2/ still holds all data in globals, and trying to create multiple simultaneous AO instances won't work.
2011-04-09 00:03:22 +00:00
#include <stdbool.h>
Move compat/ and bstr/ directory contents somewhere else bstr.c doesn't really deserve its own directory, and compat had just a few files, most of which may as well be in osdep. There isn't really any justification for these extra directories, so get rid of them. The compat/libav.h was empty - just delete it. We changed our approach to API compatibility, and will likely not need it anymore.
2014-08-29 10:09:04 +00:00
#include "misc/bstr.h"
Split mpvcore/ into common/, misc/, bstr/
2013-12-17 01:39:45 +00:00
#include "common/common.h"
audio/out: switch to channel map This actually breaks audio for 5/6/8 channels. There's no reordering done yet. The actual reordering will be done inside of af_lavrresample and has to be made part of the format negotiation.
2013-04-05 21:06:22 +00:00
#include "audio/chmap.h"
audio: add channel map selection function The point is selecting a minimal fallback. The AOs will call this through the AO API, so it will be possible to add options affecting the general channel layout selection. It provides the following mechanism to AOs: - forcing the correct channel order - downmixing to stereo if no layout is available - allow 5.1 <-> 5.1(side) fallback - handling "unknown" channel layouts This is quite weak and lots of code/complexity for little gain. All AOs already made sure the channel order was correct, and the fallback is of little value, and could perhaps be done in the frontend instead, like stereo downmixing with --channels=2 is handled. But I'm not really sure how this stuff should _really_ work, and the new code will hopefully provides enough flexibility to make radical changes to channel layout negotiation easier.
2013-05-09 13:12:16 +00:00
#include "audio/chmap_sel.h"
libao2: change control() types to enum, remove unused ones Change the audio driver control() command argument from "int" to "enum aocontrol". Remove unused control types (SET_DEVICE, GET_DEVICE, QUERY_FORMAT, SET_PLUGIN_DRIVER, SET_PLUGIN_LIST). The QUERY_FORMAT one looks like there's a possibility such functionality could be useful in the future, but as ao_oss was the only driver to have an actual implementation of it, the current code wasn't worth keeping.
2012-04-07 13:26:56 +00:00
enum aocontrol {
// _VOLUME commands take struct ao_control_vol pointer for input/output.
// If there's only one volume, SET should use average of left/right.
AOCONTROL_GET_VOLUME,
AOCONTROL_SET_VOLUME,
mixer: support native audio driver mute Make mixer support setting the mute attribute at audio driver level, if one exists separately from volume. As of this commit, no libao2 driver exposes such an attribute yet; that will be added in later commits. Since the mute status can now be set externally, it's no longer completely obvious when the player should automatically disable mute when uninitializing an audio output. The implemented behavior is to turn mute off at uninitialization if we turned it on and haven't noticed it turn off (by external means) since.
2012-04-10 01:45:53 +00:00
// _MUTE commands take a pointer to bool
AOCONTROL_GET_MUTE,
AOCONTROL_SET_MUTE,
player: set PulseAudio stream title to window title Set the PulseAudio stream title, just like the VO window title is set. Refactor update_vo_window_title() so that we can use it for AOs too. The ao_pulse.c bit is stolen from MPlayer.
2013-11-09 23:49:13 +00:00
// Has char* as argument, which contains the desired stream title.
AOCONTROL_UPDATE_STREAM_TITLE,
audio/out: remove old things Remove the unnecessary indirection through ao fields. Also fix the inverted result of AOCONTROL_HAS_TEMP_VOLUME. Hopefully the change is equivalent. But actually, it looks like the old code did it wrong.
2014-09-06 00:30:57 +00:00
// the AO does the equivalent of af_volume (return CONTROL_TRUE if yes)
AOCONTROL_HAS_SOFT_VOLUME,
// like above, but volume persists (per app), mpv won't restore volume
audio/out: make ao struct opaque We want to move the AO to its own thread. There's no technical reason for making the ao struct opaque to do this. But it helps us sleep at night, because we can control access to shared state better.
2014-03-07 14:24:32 +00:00
AOCONTROL_HAS_PER_APP_VOLUME,
libao2: change control() types to enum, remove unused ones Change the audio driver control() command argument from "int" to "enum aocontrol". Remove unused control types (SET_DEVICE, GET_DEVICE, QUERY_FORMAT, SET_PLUGIN_DRIVER, SET_PLUGIN_LIST). The QUERY_FORMAT one looks like there's a possibility such functionality could be useful in the future, but as ao_oss was the only driver to have an actual implementation of it, the current code wasn't worth keeping.
2012-04-07 13:26:56 +00:00
};
ao: document some functions
2014-02-27 23:56:10 +00:00
// If set, then the queued audio data is the last. Note that after a while, new
// data might be written again, instead of closing the AO.
libao2: change control() types to enum, remove unused ones Change the audio driver control() command argument from "int" to "enum aocontrol". Remove unused control types (SET_DEVICE, GET_DEVICE, QUERY_FORMAT, SET_PLUGIN_DRIVER, SET_PLUGIN_LIST). The QUERY_FORMAT one looks like there's a possibility such functionality could be useful in the future, but as ao_oss was the only driver to have an actual implementation of it, the current code wasn't worth keeping.
2012-04-07 13:26:56 +00:00
#define AOPLAY_FINAL_CHUNK 1
audio/out: make ao_request_reload() idempotent This is what you would expect. Before this commit, each ao_request_reload() call would just queue a reload command, and then recreate the AO for the number of times the function was called. Instead of sending a command, introduce some sort of event retrieval mechanism. At least for the reload case, use atomics, because we're too lazy to setup an extra mutex.
2014-11-09 08:58:44 +00:00
enum {
AO_EVENT_RELOAD = 1,
};
libao2: change control() types to enum, remove unused ones Change the audio driver control() command argument from "int" to "enum aocontrol". Remove unused control types (SET_DEVICE, GET_DEVICE, QUERY_FORMAT, SET_PLUGIN_DRIVER, SET_PLUGIN_LIST). The QUERY_FORMAT one looks like there's a possibility such functionality could be useful in the future, but as ao_oss was the only driver to have an actual implementation of it, the current code wasn't worth keeping.
2012-04-07 13:26:56 +00:00
typedef struct ao_control_vol {
float left;
float right;
} ao_control_vol_t;
audio: add device selection & listing with --audio-device Not sure how good of an idea this is. This commit doesn't add support for this to any AO yet; the AO implementations will follow later.
2014-10-09 19:21:31 +00:00
struct ao_device_desc {
audio: change internal device listing API Now we run ao_driver->list_devs on a dummy AO instance, which will probably confuse everyone. This is done for the sake of PulseAudio.
2014-10-10 16:27:21 +00:00
const char *name; // symbolic name; will be set on ao->device
const char *desc; // verbose human readable name
audio: add device selection & listing with --audio-device Not sure how good of an idea this is. This commit doesn't add support for this to any AO yet; the AO implementations will follow later.
2014-10-09 19:21:31 +00:00
};
struct ao_device_list {
struct ao_device_desc *devices;
int num_devices;
};
audio output: add a new AO driver API Add a new audio output driver API. The main change is the addition of a context struct where data can be kept instead of using globals. The old API remains available. This commit does not yet convert any driver to use the new API.
2011-05-04 11:55:15 +00:00
struct ao;
audio/out: add support for new logging API
2013-08-01 15:41:32 +00:00
struct mpv_global;
audio/out: make ao struct opaque We want to move the AO to its own thread. There's no technical reason for making the ao struct opaque to do this. But it helps us sleep at night, because we can control access to shared state better.
2014-03-07 14:24:32 +00:00
struct input_ctx;
struct encode_lavc_context;
struct mp_audio;
audio/out: add support for new logging API
2013-08-01 15:41:32 +00:00
struct ao *ao_init_best(struct mpv_global *global,
options: use new option code for --ao This requires completely refactoring the AO creation code too.
2013-07-21 19:33:17 +00:00
struct input_ctx *input_ctx,
struct encode_lavc_context *encode_lavc_ctx,
int samplerate, int format, struct mp_chmap channels);
audio/out: make draining a separate operation Until now, this was always conflated with uninit. This was ugly, and also many AOs emulated this manually (or just ignored it). Make draining an explicit operation, so AOs which support it can provide it, and for all others generic code will emulate it. For ao_wasapi, we keep it simple and basically disable the internal draining implementation (maybe it should be restored later). Tested on Linux only.
2014-03-08 23:49:39 +00:00
void ao_uninit(struct ao *ao);
audio/out: make ao struct opaque We want to move the AO to its own thread. There's no technical reason for making the ao struct opaque to do this. But it helps us sleep at night, because we can control access to shared state better.
2014-03-07 14:24:32 +00:00
void ao_get_format(struct ao *ao, struct mp_audio *format);
const char *ao_get_name(struct ao *ao);
const char *ao_get_description(struct ao *ao);
bool ao_untimed(struct ao *ao);
audio: switch output to mp_audio_buffer Replace the code that used a single buffer with mp_audio_buffer. This also enables non-interleaved output operation, although it's still disabled, and no AO supports it yet.
2013-11-10 22:38:18 +00:00
int ao_play(struct ao *ao, void **data, int samples, int flags);
libao2: change control() types to enum, remove unused ones Change the audio driver control() command argument from "int" to "enum aocontrol". Remove unused control types (SET_DEVICE, GET_DEVICE, QUERY_FORMAT, SET_PLUGIN_DRIVER, SET_PLUGIN_LIST). The QUERY_FORMAT one looks like there's a possibility such functionality could be useful in the future, but as ao_oss was the only driver to have an actual implementation of it, the current code wasn't worth keeping.
2012-04-07 13:26:56 +00:00
int ao_control(struct ao *ao, enum aocontrol cmd, void *arg);
audio: change external AO interface to "ao_[method](ao, ...)" Make the outside interface of audio output handling similar to the video output one. An AO object is first created, and then methods called with ao_[methodname](ao, args...). However internally libao2/ still holds all data in globals, and trying to create multiple simultaneous AO instances won't work.
2011-04-09 00:03:22 +00:00
double ao_get_delay(struct ao *ao);
int ao_get_space(struct ao *ao);
void ao_reset(struct ao *ao);
void ao_pause(struct ao *ao);
void ao_resume(struct ao *ao);
audio/out: make draining a separate operation Until now, this was always conflated with uninit. This was ugly, and also many AOs emulated this manually (or just ignored it). Make draining an explicit operation, so AOs which support it can provide it, and for all others generic code will emulate it. For ao_wasapi, we keep it simple and basically disable the internal draining implementation (maybe it should be restored later). Tested on Linux only.
2014-03-08 23:49:39 +00:00
void ao_drain(struct ao *ao);
player: unrangle one aspect of audio EOF handling For some reason, the buffered_audio variable was used to "cache" the ao_get_delay() result. But I can't really see any reason why this should be done, and it just seems to complicate everything. One reason might be that the value should be checked only if the AO buffers have been recently filled (as otherwise the delay could go low and trigger an accidental EOF condition), but this didn't work anyway, since buffered_audio is set from ao_get_delay() anyway at a later point if it was unset. And in both cases, the value is used _after_ filling the audio buffers anyway. Simplify it. Also, move the audio EOF condition to a separate function. (Note that ao_eof_reached() probably could/should whether the last ao_play() call had AOPLAY_FINAL_CHUNK set to avoid accidental EOF on underflows, but for now let's keep the code equivalent.)
2014-04-17 21:48:09 +00:00
bool ao_eof_reached(struct ao *ao);
audio/out: make ao_request_reload() idempotent This is what you would expect. Before this commit, each ao_request_reload() call would just queue a reload command, and then recreate the AO for the number of times the function was called. Instead of sending a command, introduce some sort of event retrieval mechanism. At least for the reload case, use atomics, because we're too lazy to setup an extra mutex.
2014-11-09 08:58:44 +00:00
int ao_query_and_reset_events(struct ao *ao, int events);
void ao_request_reload(struct ao *ao);
audio: change external AO interface to "ao_[method](ao, ...)" Make the outside interface of audio output handling similar to the video output one. An AO object is first created, and then methods called with ao_[methodname](ao, args...). However internally libao2/ still holds all data in globals, and trying to create multiple simultaneous AO instances won't work.
2011-04-09 00:03:22 +00:00
audio: change internal device listing API Now we run ao_driver->list_devs on a dummy AO instance, which will probably confuse everyone. This is done for the sake of PulseAudio.
2014-10-10 16:27:21 +00:00
struct ao_device_list *ao_get_device_list(struct mpv_global *global);
void ao_print_devices(struct mpv_global *global, struct mp_log *log);
audio: add device selection & listing with --audio-device Not sure how good of an idea this is. This commit doesn't add support for this to any AO yet; the AO implementations will follow later.
2014-10-09 19:21:31 +00:00
Add MPLAYER_ prefix to multiple inclusion guards. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26061 b3059339-0415-0410-9bf9-f77b7e298cf2
2008-02-22 09:09:46 +00:00
#endif /* MPLAYER_AUDIO_OUT_H */