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2008-08-26renamed decode.c to decoder_thread.cMax Kellermann1-197/+0
It should be obvious in which thread or context a function is being executed at runtime. The code which was left in decode.c is for the decoder thread itself; give the file a better name.
2008-08-26moved global variable "pc" to player.hMax Kellermann1-1/+1
This is the last of the three variables. Now we don't need playerData.h anymore in most sources.
2008-08-26added flag "decoder.seeking"Max Kellermann1-0/+2
This flag is used internally; it is set by decoder_seek_where(), and indicates that the decoder plugin has begun the seek process. It is used for the case that the decoder plugin has to read data during the seek process. Before this patch, that was impossible, because decoder_read() would refuse to read data unless dc->command is NONE. This patch is kind of a dirty workaround, and needs to be redesigned later.
2008-08-26added InputStream.readyMax Kellermann1-0/+12
The flag "ready" indicates whether the input stream is ready and it has parsed all meta data. Previously, it was impossible for decodeStart() to see the content type of HTTP input streams, because at that time, the HTTP response wasn't parsed yet.
2008-08-26moved code to player_thread.cMax Kellermann1-394/+0
Move code which runs in the player thread to player_thread.c. Having a lot of player thread code in decode.c isn't easy to understand.
2008-08-26moved code to crossfade.cMax Kellermann1-49/+10
decode.c should be a lot smaller; start by moving all code which handles cross-fading to crossfade.c. Also includes camelCase conversion.
2008-08-26added inline function audio_format_time_to_size()Max Kellermann1-1/+1
Make the code more readable by hiding big formulas in an inline function with a nice name.
2008-08-26pass max_chunks to calculateCrossFadeChunks()Max Kellermann1-7/+8
Make calculateCrossFadeChunks() more generic and portable by eliminating global variable access.
2008-08-26renamed functions in decoder_list.hMax Kellermann1-4/+4
InputPlugin to decoder_plugin, and no camelCase.
2008-08-26no camel case in struct decoder_pluginMax Kellermann1-20/+22
2008-08-26renamed InputPlugin to struct decoder_pluginMax Kellermann1-1/+1
"decoder plugin" is a better name than "input plugin", since the plugin does not actually do the input - InputStream does. Also don't use typedef, so we can forward-declare it if required.
2008-08-26added PlayerControl.commandMax Kellermann1-21/+26
PlayerControl.command replaces the old attributes play, stop, pause, closeAudio, lockQueue, unlockQueue, seek. The main thread waits for each command synchronously, so there can only be one command enabled at a time anyway.
2008-08-26added decoder_command_finished() to decoder_api.hMax Kellermann1-8/+0
Some decoder commands are implemented in the decoder plugins, thus they need to have an API call to signal that their current command has been finished. Let them use the new decoder_command_finished() instead of the internal dc_command_finished().
2008-08-26moved struct AudioFormat to audio_format.hMax Kellermann1-0/+1
We want to expose the AudioFormat structure to plugins; remove some clutter by moving its declaration to a separate header file.
2008-08-26do not sleep after openAudioDevice()Max Kellermann1-3/+0
After the decoder has been initialized and the audio device has been opened, don't sleep. The decoder plugin won't do anything special nor will it care to wake us up for some reason.
2008-08-26added struct decoderMax Kellermann1-5/+13
The decoder struct should later be made opaque to the decoder plugin, because maintaining a stable struct ABI is quite difficult. The ABI should only consist of a small number of stable functions.
2008-08-26invoke the notify API directlyMax Kellermann1-38/+17
Don't use wrappers like player_wakeup_decoder_nb(). These have been wrappers calling notify.c functions, for compatibility with the existing code when we migrated to notify.c.
2008-08-26removed "else"Max Kellermann1-2/+3
The "if" block breaked out of the loop. That means we can move the code out of the "else" block.
2008-08-26added dc_command_finished()Max Kellermann1-2/+9
dc_command_finished() is invoked by the decoder thread when it has finished a command (sent by the player thread). It resets dc.command and wakes up the player thread. This combination was used at a lot of places, and by introducing this function, the code will be more readable.
2008-08-26don't busy wait for the decoder threadMax Kellermann1-3/+7
Busy wait loops are a bad thing, especially when the response time can be very long - busy waits eat a lot of CPU, and thus slow down the other thread. Since the other thread will notify us when it's ready, we can use notify_wait() instead.
2008-08-26merged start, stop, seek into DecoderControl.commandMax Kellermann1-22/+32
Much of the existing code queries all three variables sequentially. Since only one of them can be set at a time, this can be optimized and unified by merging all of them into one enum variable. Later, the "command" checks can be expressed in a "switch" statement.
2008-08-26don't set pc->errored_song in decodeStart()Max Kellermann1-1/+0
pc->errored_song is already set by decodeParent() in the player thread when we set dc->error; no need to set it in the decoder thread.
2008-08-26added dc.next_song, renamed pc.current_songMax Kellermann1-11/+14
Since pc->current_song denotes the song which the decoder should use next, we should move it to DecoderControl. This removes one internal PlayerControl struct access from the decoder code. Also add pc.next_song, which is manipulated by the playlist code, and gets copied to dc.next_song as soon as the decoder is started.
2008-06-01fix stream URLMax Kellermann1-1/+2
Streaming was broken, beacuse the stream URL was never copied to path_max_fs. [ew: replaced strcpy with pathcpy_trunc for ease of auditing] git-svn-id: https://svn.musicpd.org/mpd/trunk@7371 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-06-01notify: don't use camelCase in notify.[ch]Max Kellerman1-4/+4
git-svn-id: https://svn.musicpd.org/mpd/trunk@7367 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-06-01assert dc.state == DECODE_STATE_STOPMax Kellerman1-1/+2
During the decoder thread main loop, dc.state must be DECODE_STATE_STOP. Explicitly assigning it after the "dc.stop" check is redundant. git-svn-id: https://svn.musicpd.org/mpd/trunk@7366 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-15added ob_set_lazy()Max Kellermann1-1/+7
In lazy mode (previously the default), outputBuffer.c only wakes up the player when it was previously empty. That caused a deadlock when the player was waiting for buffered_before_play, since the decoder wouldn't wake up the player when buffered_before_play was reached. In non-lazy mode, always wake up the player when a new chunk was decoded. git-svn-id: https://svn.musicpd.org/mpd/trunk@7364 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-15const pointers in decode.cMax Kellermann1-1/+1
git-svn-id: https://svn.musicpd.org/mpd/trunk@7362 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-15fix XFADE_DISABLED=-1Max Kellermann1-1/+1
git-svn-id: https://svn.musicpd.org/mpd/trunk@7359 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-14decode.c: make the crossfade state variable self-documentingEric Wong1-15/+18
git-svn-id: https://svn.musicpd.org/mpd/trunk@7358 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-13Make the OutputBuffer API more consistentEric Wong1-21/+21
We had functions names varied between outputBufferFoo, fooOutputBuffer, and output_buffer_foo That was too confusing for my little brain to handle. And the global variable was somehow named 'cb' instead of the more obvious 'ob'... git-svn-id: https://svn.musicpd.org/mpd/trunk@7355 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-13Stop passing our single OutputBuffer object everywhereEric Wong1-42/+35
All of our main singleton data structures are implicitly shared, so there's no reason to keep passing them around and around in the stack and making our internal API harder to deal with. git-svn-id: https://svn.musicpd.org/mpd/trunk@7354 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-13Stop passing our single DecoderControl object everywhereEric Wong1-99/+91
This at least makes the argument list to a lot of our plugin functions shorter and removes a good amount of line nois^W^Wcode, hopefully making things easier to read and follow. git-svn-id: https://svn.musicpd.org/mpd/trunk@7353 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-13Get rid of PlayerControl inside the PlayerData structEric Wong1-102/+92
It actually increases our image size a small bit and may even hurt performance a very small bit, but makes the code less verbose and easier to manage. I don't see a reason for mpd to ever support playing multiple files at the same time (users can run multiple instances of mpd if they really want to play Zaireeka, but that's such an edge case it's not worth ever supporting in our code). git-svn-id: https://svn.musicpd.org/mpd/trunk@7352 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12Fix the problem of songs not advancing without client activityEric Wong1-0/+1
The select() in the main event loop blocks now (saving us many unnecessary wakeups). This interacted badly with the threads that were trying to wakeup the main task via pthread_cond_signal() since the main task was not blocked on a condition variable, but on select(). So now if we detect a need to wakeup the player, we write to a pipe which select() is watching instead of blindly calling pthread_cond_signal(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7347 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12fix several errors/warnings which only appear with -O3Max Kellermann1-0/+2
git-svn-id: https://svn.musicpd.org/mpd/trunk@7333 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12pass dc to decoder_task()Max Kellermann1-4/+4
git-svn-id: https://svn.musicpd.org/mpd/trunk@7323 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12clean up CPP includesMax Kellermann1-5/+0
Try to only include headers which are really needed. We should particularly check all "headers including other headers". The long-term goal is to have a manageable, small API for plugins (decoders, output) without so many mpd internals cluttering the namespace. git-svn-id: https://svn.musicpd.org/mpd/trunk@7319 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12pass pc to player notify functionsMax Kellermann1-13/+15
Same as the previous patch: less global variables. git-svn-id: https://svn.musicpd.org/mpd/trunk@7317 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12pass DecoderControl object to decoder_sleep()Max Kellermann1-15/+12
Less global variables: at any invocation of decoder_sleep(), we have a reference to the DecoderControl anyway, so we should pass it. This costs less than having to call getPlayerData() in every tiny function. Maybe some day we will be able to have multiple decoders at the same time... git-svn-id: https://svn.musicpd.org/mpd/trunk@7316 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12remove the local variable "end"Max Kellermann1-5/+0
"end" is not being used anymore, since we moved most OutputBuffer struct accesses into methods. git-svn-id: https://svn.musicpd.org/mpd/trunk@7314 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12don't use short chunk numbersMax Kellermann1-2/+2
Don't be mean with integer sizes. Although we will probably never have more than 32k buffered chunks, we should use 32 bit integers for addressing them. We do not save very much (some of the saved space is eaten by alignment anyway), but we save at least one assembler instruction for converting short to int. This change requires some more explicit casts, because gcc was less picky when comparing short with a full int. git-svn-id: https://svn.musicpd.org/mpd/trunk@7313 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added output_buffer_skip()Max Kellermann1-8/+1
First patch without camelCase ;) output_buffer_skip() lets us eliminate advanceOutputBufferTo(), and removes yet another external OutputBuffer struct access. git-svn-id: https://svn.musicpd.org/mpd/trunk@7312 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12remove buffered_chunks, use cb->sizeMax Kellermann1-1/+2
Second patch to make OutputBuffer self-contained: since OutputBuffer now knows its own size, we do not need the global variable "buffered_chunks" anymore. git-svn-id: https://svn.musicpd.org/mpd/trunk@7311 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12decode: fix some uninitialized variable warningsEric Wong1-2/+2
They're probably not needed, but less noise => faster debugging git-svn-id: https://svn.musicpd.org/mpd/trunk@7302 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12decode: fix unsigned comparision and add some paranoid assertionsEric Wong1-8/+9
git-svn-id: https://svn.musicpd.org/mpd/trunk@7301 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12Fix a few more warnings from -WshadowEric Wong1-4/+4
git-svn-id: https://svn.musicpd.org/mpd/trunk@7300 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12some assertions to check the unsigned changesMax Kellermann1-0/+3
git-svn-id: https://svn.musicpd.org/mpd/trunk@7297 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12yet more unsigned integersMax Kellermann1-4/+4
calculateCrossFadeChunks() still returns int, although the caller uses it as an unsigned value. Since the function body checks for negative values, it is safe to cast to unsigned. crossFade() takes signed parameters, although it callers pass unsigned integers. Change declaration to unsigned. git-svn-id: https://svn.musicpd.org/mpd/trunk@7291 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use the notify API in the decoderMax Kellermann1-6/+8
git-svn-id: https://svn.musicpd.org/mpd/trunk@7281 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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