aboutsummaryrefslogtreecommitdiffstats
path: root/src/pipe.h (unfollow)
Commit message (Collapse)AuthorFilesLines
2011-07-20pipe: make read-only functions "pure"Max Kellermann1-0/+5
Enable gcc optimizations.
2011-01-29copyright year 2011Max Kellermann1-1/+1
2011-01-14Fix NDEBUG testAndreas Wiese1-1/+1
<stdbool.h> needs to be included unconditionally from definition of NDEBUG, since »bool« doesn't get defined otherwise. Signed-off-by: Andreas Wiese <aw-devel@meterriblecrew.net>
2010-11-05pipe: add helper function music_pipe_empty()Max Kellermann1-0/+6
2009-12-31Update copyright notices.Avuton Olrich1-1/+1
2009-03-13all: Update copyright header.Avuton Olrich1-6/+7
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
2009-03-09music_pipe: added music_pipe_contains()Max Kellermann1-0/+9
2009-03-08music_chunk: added assertions on the audio formatMax Kellermann1-0/+16
In !NDEBUG, remember which audio_format is stored in every chunk and every pipe. Check the audio_format of every new data block appended to the music_chunk, and the format of every new chunk appended to the music_pipe.
2009-03-07music_pipe: added music_pipe_peek()Max Kellermann1-0/+7
music_pipe_peek() is similar to music_pipe_shift(), but doesn't remove the chunk. This allows it to be used with a "const" music_pipe.
2009-03-06pipe: added music_buffer, rewrite music_pipeMax Kellermann1-129/+20
Turn the music_pipe into a simple music_chunk queue. The music_chunk allocation code is moved to music_buffer, and is now managed with a linked list instead of a ring buffer. Two separate music_pipe objects are used by the decoder for the "current" and the "next" song, which greatly simplifies the cross-fading code.
2009-03-06music_pipe: added music_pipe_push()Max Kellermann1-8/+26
Added music_pipe_allocate(), music_pipe_push() and music_pipe_cancel(). Those functions allow the caller (decoder thread in this case) to do its own chunk management. The functions music_pipe_flush() and music_pipe_tag() can now be removed.
2009-03-03music_pipe: moved struct music_chunk to chunk.hMax Kellermann1-29/+2
2009-01-17music_pipe: removed music_pipe_append()Max Kellermann1-9/+0
The function is unused, since decoder_api() uses music_pipe_write() / music_pipe_expand() now.
2009-01-17music_pipe: added functions music_pipe_write() and music_pipe_expand()Max Kellermann1-0/+18
This new API gives the caller a writable buffer to the music pipe chunk. This may allow the caller to eliminate several buffer copies, because it may manipulate the returned buffer, until it calls music_pipe_expand().
2008-11-13player: chop the tail of the music pipe after CANCELMax Kellermann1-0/+6
When a CANCEL command is received, the player should drop all chunks of the next song. Added new funciton music_pipe_chop() which is used for that.
2008-11-13music_pipe: continuously check the sample format of all chunksMax Kellermann1-0/+5
Provide a debug function which asserts on the sample format of all chunks. Call this function in each iteration of the player main loop.
2008-11-02music_pipe: add tag pointer to the music_chunk structMax Kellermann1-0/+14
Each music chunk can now carry a tag object. Decoder plugins which support it (e.g. oggvorbis) may use this to inject decoded tags into their output.
2008-11-02music_pipe: document struct music_chunkMax Kellermann1-0/+11
Add doxygen compatible comments.
2008-11-02music_pipe: removed "volatile"Max Kellermann1-2/+2
The "volatile" keyword doesn't help here, because we have proper memory barriers, but it disables some optimizations. Remove it.
2008-11-02music_pipe: renamed "size" to "num_chunks"Max Kellermann1-3/+2
The name "num_chunks" expresses the meaning of the variable better.
2008-11-02music_pipe: no CamelCaseMax Kellermann1-3/+3
Rename all variables and struct members.
2008-11-02music_pipe: renamed "ob" to "music_pipe"Max Kellermann1-6/+6
Last music_pipe rename patch: renamed the global variable (singleton).
2008-11-02music_pipe: more wrapper functionsMax Kellermann1-0/+27
Replace all direct music_pipe struct accesses with wrapper functions. The compiled machine code is the same, but this way, we can change struct internals more easily.
2008-11-02decoder: replaced music_pipe.audioFormat with dc.out_audio_formatMax Kellermann1-4/+4
.. and rename dc.audioFormat to dc.in_audio_format. The music pipe does not need to know the audio format, and its former "audioFormat" property indicated the format of the most recently added chunk, which might be confusing when you are reading the oldest chunks.
2008-11-02music_pipe: renamed ob_* functions to music_pipe_*Max Kellermann1-14/+14
Rename all functions to the new prefix.
2008-11-02music_pipe: renamed struct output_buffer to struct music_pipeMax Kellermann1-6/+7
.. and rename ob_chunk to struct music_chunk.
2008-11-02renamed outputBuffer.[ch] to pipe.[ch]Max Kellermann1-2/+2
No CamelCase in the file name. The output_buffer struct is going to be renamed to music_pipe. There are so many buffer levels in MPD, and calling this one "output buffer" is wrong, because it's not the last buffer before the music reaches the output devices.
2008-10-31added prefix to header macrosMax Kellermann1-2/+2
"LOG_H" is a macro which is also used by ffmpeg/log.h. This is ffmpeg's fault, because short macros should be reserved for applications, but since it's always a good idea to choose prefixed macro names, even for applications, we are going to do that in MPD.
2008-10-12output_buffer: converted ob_is_empty() to inlineMax Kellermann1-1/+4
The function ob_is_empty() is called very often. It's worth it to convert it to an inline function.
2008-10-08use the "bool" data type instead of "int"Max Kellermann1-2/+3
"bool" should be used in C99 programs for boolean values.
2008-10-08notify: removed the "Notify" typedefMax Kellermann1-3/+5
Typedefs shouldn't be used, use the bare struct names instead.
2008-09-29switch to C99 types, part IIMax Kellermann1-4/+3
Do full C99 integer type conversion in all modules which were not touched by Eric's merged patch.
2008-09-07audio_format: converted typedef AudioFormat to struct audio_formatMax Kellermann1-1/+1
Get rid of CamelCase, and don't use a typedef, so we can forward-declare it, and unclutter the include dependencies.
2008-08-26moved global variable "ob" to outputBuffer.hMax Kellermann1-2/+4
This releases several include file dependencies. As a side effect, "CHUNK_SIZE" isn't defined by decoder_api.h anymore, so we have to define it directly in the plugins which need it. It just isn't worth it to add it to the decoder plugin API.
2008-08-26eliminate OUTPUT_BUFFER_DC_STOP, OUTPUT_BUFFER_DC_SEEKMax Kellermann1-3/+0
(Ab)use the decoder_command enumeration, which has nearly the same values and the same meaning.
2008-08-26moved convState to struct decoderMax Kellermann1-2/+1
Since we moved all PCM conversions to decoder_data(), the attribute convState isn't being used anymore by the OutputBuffer code. Move it to struct decoder.
2008-08-26added OutputBuffer.notifyMax Kellermann1-1/+4
OutputBuffer should be a more generic low-level library, without dependencies to the other headers. This patch adds the field "notify", which is used to signal the player thread. It is passed in the constructor, and removes the need to compile with the decode.h header.
2008-08-26added decoder_data()Max Kellermann1-11/+8
Moved all of the player-waiting code to decoder_data(), to make OutputBuffer more generic.
2008-08-26clean up CPP includesMax Kellermann1-1/+0
Include only headers which are really required. This speeds up compilation and helps detect cross-layer accesses.
2008-04-15added ob_set_lazy()Max Kellermann1-0/+12
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
2008-04-13Make the OutputBuffer API more consistentEric Wong1-14/+14
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 Wong1-13/+12
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 Wong1-1/+0
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
2008-04-12eliminate OutputBuffer.currentChunkMax Kellermann1-2/+0
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
2008-04-12clean up CPP includesMax Kellermann1-1/+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
2008-04-12removed "volatile" from OutputBufferChunk propertiesMax Kellermann1-3/+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
2008-04-12added output_buffer_free()Max Kellermann1-0/+2
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
2008-04-12don't use short chunk numbersMax Kellermann1-3/+3
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 Kellermann1-0/+2
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
2008-04-12pass buffered_chunks to initOutputBuffer()Max Kellermann1-1/+3
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