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2008-04-12use size_t in audio.cMax Kellermann2-5/+5
Buffer sizes should be size_t. This is safe here, at least not unsafer than without the patch. I have no idea why audioBufferSize and audioBufferPos were explicitly declared as signed integer. git-svn-id: https://svn.musicpd.org/mpd/trunk@7296 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use free()/malloc() instead of realloc()Max Kellermann1-2/+3
When growing the audioOutput->convBuffer, we can use free()+malloc() instead of realloc(), which saves a memcpy(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7295 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use size_t in audioOutput.c internalsMax Kellermann2-2/+2
git-svn-id: https://svn.musicpd.org/mpd/trunk@7294 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use size_t and constant pointer in ao pluginsMax Kellermann12-36/+66
The audio output plugins should get a constant pointer, because they must not modify the buffer. Since the size is a non-negative buffer size in bytes, we should change its type to size_t. git-svn-id: https://svn.musicpd.org/mpd/trunk@7293 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use size_t for pcm_sizeOfConvBuffer() resultMax Kellermann1-4/+4
In my previous patch set, I forgot to change the pcm_sizeOfConvBuffer() invocation in convertAudioFormat() to also use size_t. git-svn-id: https://svn.musicpd.org/mpd/trunk@7292 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
2008-04-12constant pointersMax Kellermann3-9/+9
There were some const pointers missing in the previous const-cleanup patch. git-svn-id: https://svn.musicpd.org/mpd/trunk@7290 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12fix parameter types in the faad callsMax Kellermann2-3/+3
libfaad wants uint32_t pointers. Passing a long pointer is bugged on amd64. git-svn-id: https://svn.musicpd.org/mpd/trunk@7289 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12fix compilation error in wavpack pluginMax Kellermann1-3/+6
The patch "Start using song pointers in core data structures" removed dc->utf8url, and the adaption for wavpack_plugin.c was missing. git-svn-id: https://svn.musicpd.org/mpd/trunk@7288 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12yet more unsigned integersMax Kellermann5-10/+9
git-svn-id: https://svn.musicpd.org/mpd/trunk@7287 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12whitespace cleanupMax Kellermann1-67/+67
git-svn-id: https://svn.musicpd.org/mpd/trunk@7286 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added inline function successor()Max Kellermann1-11/+12
The new function successor() can be used to simplify a lot of code lines and saves a lot of "i+>=buffered_chunks" checks. git-svn-id: https://svn.musicpd.org/mpd/trunk@7285 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved currentChunk into OutputBufferMax Kellermann2-10/+11
currentChunk is a global variable, which renders the whole output buffer code non-reentrant. Although this is not a real problem since there is only one global output buffer currently, we should move it to the OutputBuffer struct. git-svn-id: https://svn.musicpd.org/mpd/trunk@7284 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use the notify API in the main threadMax Kellermann3-9/+19
git-svn-id: https://svn.musicpd.org/mpd/trunk@7283 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use the notify API in the playerMax Kellermann3-6/+10
git-svn-id: https://svn.musicpd.org/mpd/trunk@7282 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use the notify API in the decoderMax Kellermann3-6/+12
git-svn-id: https://svn.musicpd.org/mpd/trunk@7281 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use the pthread API in notify.cMax Kellermann2-33/+66
This patch rewrites notify.c to use the pthread API, namely pthread_mutex and pthread_cond. This is a lot cheaper and easier than the pipe() hack. git-svn-id: https://svn.musicpd.org/mpd/trunk@7280 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12rename the notify.c methodsMax Kellermann2-6/+6
Use "notify" as a prefix rather than suffix. git-svn-id: https://svn.musicpd.org/mpd/trunk@7279 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use break instead of quitDecode()+returnMax Kellermann1-6/+3
The code paths which return from the functions all have to call quitDecode(). If we simply break instead of calling quitDecode() explicitly, this function gets called in the last line of this function anyway. git-svn-id: https://svn.musicpd.org/mpd/trunk@7278 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved expression to audioFormatSizeToTime()Max Kellermann2-3/+6
The multi-line expression which calculates sizeToTime is hard to read, partly because "cb->audioFormat." is too long. Create a separate inline function in audio.h for that. git-svn-id: https://svn.musicpd.org/mpd/trunk@7277 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12let calculateCrossFadeChunks() decideMax Kellermann1-14/+12
Moved the decision whether to cross-fade the current song to calculateCrossFadeChunks(). This simplifies the function decoderParent() and eliminates one layer of indentation. git-svn-id: https://svn.musicpd.org/mpd/trunk@7276 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved code to playChunk()Max Kellermann1-10/+20
Similar to the crossFade() patch: pass chunk objects to playChunk(), simplify decodeParent() by removing clutter. git-svn-id: https://svn.musicpd.org/mpd/trunk@7275 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added outputBufferShift()Max Kellermann3-4/+13
Hiding OutputBuffer internals, yet again. Two more assertions. git-svn-id: https://svn.musicpd.org/mpd/trunk@7274 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12continue main loop instead of nesting loopsMax Kellermann1-13/+5
To unify the decoderParent() main loop some more, use it to wait for the decoder to change the song. Only one single processDecodeInput() caller left after this patch. git-svn-id: https://svn.musicpd.org/mpd/trunk@7273 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12sleep when waiting for cross-fade chunksMax Kellermann1-1/+3
When there are not enough decode cross-fade chunks in the buffer yet, the current code does busy-wait, which will delay the decoder even more. sleep instead, expecting the decoder to wake us up. git-svn-id: https://svn.musicpd.org/mpd/trunk@7272 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved code to crossFade()Max Kellermann1-15/+20
Calling crossFade() with the chunk objects is easier than unrolling all the chunk properties manually, and decodeParent() can really use more of these simplifications. git-svn-id: https://svn.musicpd.org/mpd/trunk@7271 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use sizeof(chunk.data) instead of CHUNK_SIZEMax Kellermann1-2/+2
sizeof() is the more "natural" or "direct" access to the buffer size, instead of a macro happening to be used to the buffer declaration. git-svn-id: https://svn.musicpd.org/mpd/trunk@7270 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added struct OutputBufferChunkMax Kellermann4-41/+46
To make access to OutputBuffer easier, move everything which belongs to a chunk into its own structure, namely OutputBufferChunk. git-svn-id: https://svn.musicpd.org/mpd/trunk@7269 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved CHUNK_SIZE to outputBuffer.hMax Kellermann2-3/+3
The chunk size should be in outputBuffer.h since the output buffer code is its primary user. git-svn-id: https://svn.musicpd.org/mpd/trunk@7268 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added outputBufferChunkData()Max Kellermann3-4/+11
Hiding OutputBuffer internals, again. We get an extra assertion in return. git-svn-id: https://svn.musicpd.org/mpd/trunk@7267 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12removed "quit"Max Kellermann1-5/+3
The variable "quit" can be removed, since its only setter can use "break" instead, just like the other code paths. git-svn-id: https://svn.musicpd.org/mpd/trunk@7266 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12do not reset nextChunkMax Kellermann1-9/+5
The variables "nextChunk" and "crossFadeChunks" are only used when doCrossFade==1. This means that we do not have to reset these as long as doCrossFade!=1. git-svn-id: https://svn.musicpd.org/mpd/trunk@7265 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added outputBufferRelative()Max Kellermann3-10/+17
The cross-fade check is still very complicated whenever it uses OutputBuffer internals. Greatly simplify another check by introducing outputBufferRelative(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7264 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added outputBufferEmpty()Max Kellermann3-2/+10
Another "don't use OutputBuffer internals" patch. This ignores the copied "end" value, but I do not think that has ever been a real issue. git-svn-id: https://svn.musicpd.org/mpd/trunk@7263 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved check to outputBufferAbsolute()Max Kellermann3-17/+27
decoderParent() uses a lot of OutputBuffer internals to see whether cross-fading should be started. Move these checks to outputBuffer.c, which also simplifies decoderParent(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7262 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12make variables more localMax Kellermann1-4/+3
Declare the variables "test" and "fadePosition" in the scope where they are really used. This removes some of the clutter in the function decodeParent(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7261 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved the initial buffering code into the big loopMax Kellermann1-13/+10
Eliminating some duplicated and. This also decreases the number of lines calling processDecodeInput(). git-svn-id: https://svn.musicpd.org/mpd/trunk@7260 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12some comments in decode.cMax Kellermann1-0/+39
I have spent some time to understand decodeParent(), which does a lot of obfuscated magic... I find it useful to help others to also understand it, so I wrote a few comments. git-svn-id: https://svn.musicpd.org/mpd/trunk@7259 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12integrated macro handleDecodeStart() into callerMax Kellermann1-43/+40
Another patch indended to improve the CPP macro hell. This enlarges the function decodeParent(), but it cannot be converted into a standalone function easily, because it references so many local variables. git-svn-id: https://svn.musicpd.org/mpd/trunk@7258 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use clearOutputBuffer()Max Kellermann1-4/+2
clearOutputBuffer() also resets currentChunk; this might resolve a theoretical bug. git-svn-id: https://svn.musicpd.org/mpd/trunk@7257 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12do not check dc->start after loopMax Kellermann1-1/+1
dc->start cannot be true after the loop, because it was the loop condition. dc->start could have been set by another thread between the while loop and the if, but I suspect this is not the case the author intended, so we just remove the dc->start check. git-svn-id: https://svn.musicpd.org/mpd/trunk@7256 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12use DECODE_ERROR_NOERROR instead of 0Max Kellermann1-3/+3
In my opinion, the code becomes more readable when we explicitly check "==NOERROR" instead of an implicit 0 check. git-svn-id: https://svn.musicpd.org/mpd/trunk@7255 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12converted macro processDecodeInput() to functionMax Kellermann1-52/+80
Macros are ugly, and multi-line macros are even more ugly. This patch converts processDecodeInput() to a C function. The disadvantage may be that the function does not have access to the caller's local variables, which might be regarded as an advantage on the other hand. For this reason, we have to pass variable references. This costs a tiny bit of performance, but it's worth eliminating this monster macro, and further patches will optimize this cost down. git-svn-id: https://svn.musicpd.org/mpd/trunk@7254 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12added clearPlayerQueueLocked()Max Kellermann1-43/+24
since clearPlayerQueue() is always called within lockPlaylistInteraction() / unlockPlaylistInteraction(), it simplifies the code to add another function which calls these three functions. git-svn-id: https://svn.musicpd.org/mpd/trunk@7253 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12don't set quit=1 before breakMax Kellermann1-5/+2
Instead of setting quit=1, we can simply break out of the loop. git-svn-id: https://svn.musicpd.org/mpd/trunk@7252 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12simplified some code in decode.cMax Kellermann1-11/+10
The block after "if" breaks out of the loop. To make the code a little bit more readable, don't write the rest in an "else" block, since this code path does not break. git-svn-id: https://svn.musicpd.org/mpd/trunk@7251 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12add method availableOutputBuffer()Max Kellermann3-2/+12
The method availableOutputBuffer() calculates how many chunks are in use. This simplifies code which needs this information, and it can run without knowing OutputBuffer internals. The function knows how to calculate this when begin>end; this might have been a bug in decodeParent(), which does not. git-svn-id: https://svn.musicpd.org/mpd/trunk@7250 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12replace advanceOutputBufferTo() with trivial assignmentMax Kellermann1-6/+1
After the previous patch, it is clear that the loop in advanceOutputBufferTo() can be replaced with a simple assignment. git-svn-id: https://svn.musicpd.org/mpd/trunk@7249 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12removed unused parameters from advanceOutputBufferTo()Max Kellermann1-6/+2
The parameter "currentChunkSent" is not used and can be dropped. git-svn-id: https://svn.musicpd.org/mpd/trunk@7248 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2008-04-12moved code to function tailChunk()Max Kellermann1-33/+58
This patch removes some clutter from decodeParent() by moving some code out. git-svn-id: https://svn.musicpd.org/mpd/trunk@7247 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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