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* Fix a deadlock after pause/nextEric Wong2008-04-121-0/+1
| | | | | Oops, forgot to unlock a mutex git-svn-id: https://svn.musicpd.org/mpd/trunk@7348 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Fix the problem of songs not advancing without client activityEric Wong2008-04-128-20/+173
| | | | | | | | | | | | | 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
* command.h: include sllist.h which defines struct strnodeEric Wong2008-04-121-2/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7346 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* const pointers in audioOutput.cMax Kellermann2008-04-122-2/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7345 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* const pointers in audio.cMax Kellermann2008-04-122-10/+11
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7344 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flush after loop in sendDataToOutputBuffer()Max Kellermann2008-04-121-5/+4
| | | | | | Since tailChunk() automatically flushes full buffers, we do not have to check this in every iteration of sendDataToOutputBuffer(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7343 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* constant pointers in replayGain.cMax Kellermann2008-04-122-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7342 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* yet another migration to size_tMax Kellermann2008-04-121-4/+4
| | | | | We can also get rid of one the two variables. git-svn-id: https://svn.musicpd.org/mpd/trunk@7341 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* check cb->stop in the while loopMax Kellermann2008-04-121-4/+4
| | | | | | Checking dc->stop in the while condition and again after the while loop costs some CPU cycles we should save. git-svn-id: https://svn.musicpd.org/mpd/trunk@7340 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* eliminate OutputBuffer.currentChunkMax Kellermann2008-04-122-31/+51
| | | | | | | | | | | OutputBuffer.currentChunk contains redundant data: it is either -1 when there is no chunk which is currently being written, or it equals "end". If we always keep chunk[end] in a valid state, we can remove OutputBuffer.currentChunk. This patch may look a bit clumsy, especially flushOutputBuffer(), but that will be fixed later with an major OutputBuffer API overhaul. git-svn-id: https://svn.musicpd.org/mpd/trunk@7339 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* added output_buffer_expand()Max Kellermann2008-04-121-13/+22
| | | | | | | output_buffer_expand() moves the cb->end to the new position (only its current successor is allowed) and wakes up the player if is waiting for the decoder. This simplifies flushOutputBuffer(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7338 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* initialize all elements in initOutputBuffer()Max Kellermann2008-04-121-0/+2
| | | | | | | The current OutputBuffer object is allocated statically, i.e. it is zeroed. To be safe for other cases in the future, also initialize the other elements. git-svn-id: https://svn.musicpd.org/mpd/trunk@7337 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* wake up player on demandMax Kellermann2008-04-121-1/+9
| | | | | | | | The decoder should not wake up the player when it did not produce a flushed chunk. Move the decoder_wakeup_player() call to flushOutputBuffer() and invoke it only if the buffer was previously empty. git-svn-id: https://svn.musicpd.org/mpd/trunk@7336 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* unlink the socket before bind()Max Kellermann2008-04-121-0/+2
| | | | | | If a unix domain socket already exists, bind() fails. Unlink the socket file. git-svn-id: https://svn.musicpd.org/mpd/trunk@7335 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* replaced assertion with checkMax Kellermann2008-04-121-2/+1
| | | | | | | During my tests, it happened that data->position>newPosition. I have not yet fully understood why this can happen; for now, replace this with a run-time check. git-svn-id: https://svn.musicpd.org/mpd/trunk@7334 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix several errors/warnings which only appear with -O3Max Kellermann2008-04-122-1/+3
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7333 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* multiply num_samples with bytes_per_channelMax Kellermann2008-04-121-1/+1
| | | | | | | The patch "convert blocks until the buffer is full" did not update data->chunk_length correctly: it added the number of samples, not the number of bytes. Multiply that with bytes_per_channel git-svn-id: https://svn.musicpd.org/mpd/trunk@7332 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* missing num_channels check in previous patchMax Kellermann2008-04-121-1/+1
| | | | | | In the patch "special optimized case for 16bit stereo", the check for "num_channels==2" was missing. git-svn-id: https://svn.musicpd.org/mpd/trunk@7331 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* special optimized case for 16bit stereoMax Kellermann2008-04-121-3/+20
| | | | | | | Not having to loop for every sample byte (depending on a variable unknown at compile time) saves a lot of CPU cycles. We could consider reimplementing this function with liboil... git-svn-id: https://svn.musicpd.org/mpd/trunk@7330 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* read num_channels onceMax Kellermann2008-04-121-3/+4
| | | | | | Read frame->header.channels once, and pass only this integer to flac_convert(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7329 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* assume the buffer is empty in flacWrite()Max Kellermann2008-04-121-4/+3
| | | | | | | flacWrite() is the only function which sets data->chunk_length. If we flush the buffer before we return, we can assume that it is always empty upon entering flacWrite(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7328 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* convert blocks until the buffer is fullMax Kellermann2008-04-121-23/+43
| | | | | | | | | Move the inner loop which converts samples to flac_convert(). There it is isolated and easier to optimize. This function does not have to worry about buffer boundaries; the caller (i.e. flacWrite()) calculates how much is left and is responsible for flushing. That saves a lot of superfluous range checks within the loop. git-svn-id: https://svn.musicpd.org/mpd/trunk@7327 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* calculate bytes_per_channel, check for buffer flush onceMax Kellermann2008-04-121-11/+14
| | | | | | Check for flushing the chunk buffer only once per sample, before iterating over channels and bytes. This saves another 5% CPU cycles. git-svn-id: https://svn.musicpd.org/mpd/trunk@7326 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* don't calculate bytes per sample within the loopMax Kellermann2008-04-121-1/+2
| | | | | | | AudioFormat.bits is volatile, and to read it, 3 pointers had to be deferenced. Calculate this value once. This speeds up this function by 5%. git-svn-id: https://svn.musicpd.org/mpd/trunk@7325 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* use unsigned integers and size_t in the flac pluginMax Kellermann2008-04-122-4/+9
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7324 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* pass dc to decoder_task()Max Kellermann2008-04-123-6/+6
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7323 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* pass pc to set_current_song()Max Kellermann2008-04-121-6/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7322 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* pass pc to player_task()Max Kellermann2008-04-123-6/+6
| | | | | Another global variable cleanup patch. git-svn-id: https://svn.musicpd.org/mpd/trunk@7321 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* whitespace cleanupMax Kellermann2008-04-121-14/+14
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7320 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* clean up CPP includesMax Kellermann2008-04-1255-110/+33
| | | | | | | | | 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
* removed "volatile" from OutputBufferChunk propertiesMax Kellermann2008-04-121-3/+3
| | | | | | | There is no danger that gcc will optimize access to OutputBufferChunk properties, since decoder and player work in different chunk objects. It is safe to remove "volatile" here. git-svn-id: https://svn.musicpd.org/mpd/trunk@7318 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* pass pc to player notify functionsMax Kellermann2008-04-123-30/+29
| | | | | Same as the previous patch: less global variables. git-svn-id: https://svn.musicpd.org/mpd/trunk@7317 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* pass DecoderControl object to decoder_sleep()Max Kellermann2008-04-123-17/+14
| | | | | | | | | 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
* added output_buffer_free()Max Kellermann2008-04-123-0/+9
| | | | | | | To do proper cleanup before exiting, we have to provide a destructor for OutputBuffer. One day, valgrind will not complain about memory leaks! git-svn-id: https://svn.musicpd.org/mpd/trunk@7315 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* remove the local variable "end"Max Kellermann2008-04-121-5/+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
* don't use short chunk numbersMax Kellermann2008-04-123-7/+7
| | | | | | | | | | | | 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
* added output_buffer_skip()Max Kellermann2008-04-123-8/+9
| | | | | | | | 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
* remove buffered_chunks, use cb->sizeMax Kellermann2008-04-123-3/+3
| | | | | | | 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
* pass buffered_chunks to initOutputBuffer()Max Kellermann2008-04-123-16/+21
| | | | | | Try to make OutputBuffer self-contained, without depending on a global variable. git-svn-id: https://svn.musicpd.org/mpd/trunk@7310 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* make playerData_pd staticMax Kellermann2008-04-121-39/+32
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7309 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* allocate playerData_pd from heap instead of shmMax Kellermann2008-04-122-12/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7308 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fixed another shadow warningMax Kellermann2008-04-121-11/+11
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7307 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* don't allocate pd.auddioDeviceStates from shmMax Kellermann2008-04-121-5/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7306 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix typo in commentMax Kellermann2008-04-121-3/+3
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7305 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* let initOutputBuffer() allocate memoryMax Kellermann2008-04-123-10/+6
| | | | | | This is the first patch in a series which removes the shared memory, and moves all the playerData objects into the normal libc heap. git-svn-id: https://svn.musicpd.org/mpd/trunk@7304 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix deadlock at end of songMax Kellermann2008-04-121-0/+1
| | | | | | | | | | | Now that we do proper locking and signalling instead of continuous polling for IPC, a deadlock was found: at the end of a song, the player thread waits until the main thread sets pc->queueState from PLAYER_QUEUE_DECODE to PLAYER_QUEUE_PLAY. He is never woken up, since syncPlaylistWithQueue() does not activate the notification. I added wakeup_player_nb() to setQueueState(), since the player must be signalled whenever pc->queueState changes. git-svn-id: https://svn.musicpd.org/mpd/trunk@7303 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* decode: fix some uninitialized variable warningsEric Wong2008-04-122-3/+3
| | | | | 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
* decode: fix unsigned comparision and add some paranoid assertionsEric Wong2008-04-121-8/+9
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7301 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Fix a few more warnings from -WshadowEric Wong2008-04-127-36/+38
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7300 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* configure: better CFLAGS checkingEric Wong2008-04-122-2/+28
| | | | | | | needed for compatibility with older gcc. Also, threw in some warnings for things I find offensive (declaration-after-statement, shadow) git-svn-id: https://svn.musicpd.org/mpd/trunk@7299 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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