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* decoder_api: removed dc.pipe assertion from decoder_read()Max Kellermann2009-04-261-1/+0
| | | | | | Database update was broken due to the dc.pipe!=NULL assertion. This assertion is only valid while MPD decodes a song, not during database update.
* decoder: added assertions on dc.pipeMax Kellermann2009-04-251-0/+11
| | | | | dc.pipe must be non-NULL while the decoder thread is running. Ensure that with a load of assertions.
* decoder_api: submit the song tag to the music pipeMax Kellermann2009-04-131-6/+12
| | | | | | When a new song starts playing, send its tag (song->tag) to the music pipe. This allows output plugins to render tags for all songs, not only those with embedded tags understood by the decoder plugin.
* all: Update copyright header.Avuton Olrich2009-03-131-7/+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.
* pipe: added music_buffer, rewrite music_pipeMax Kellermann2009-03-061-16/+21
| | | | | | | | 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.
* music_pipe: added music_pipe_push()Max Kellermann2009-03-061-33/+45
| | | | | | | 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.
* decoder_api: log audio format in a debug messageMax Kellermann2009-03-011-0/+14
| | | | | To aid debugging, print the audio format of the decoder plugin in a debug message, and print information about PCM conversion.
* decoder_api: fixed shadow warning, rename "wait"Max Kellermann2009-02-191-2/+2
| | | | | The parameter name "wait" overlaps with the POSIX wait() function. Rename it.
* utils: use g_usleep() instead of my_usleep()Max Kellermann2009-02-191-2/+1
| | | | | | | Now that I've found this nice function in the GLib docs, we can finally remove our custom sleep function. Still all those callers of g_usleep() have to be migrated one day to use events, instead of regular polling.
* decoder_api: moved struct decoder_plugin to decoder_plugin.hMax Kellermann2009-02-151-0/+1
| | | | | | The decoder_plugin struct is used by both the MPD core and the decoder plugin implementations. Move it to a shared header file, to minimize header dependencies.
* decoder_api: always notify_wait() for free chunksMax Kellermann2009-01-171-2/+1
| | | | | | | One of the previous patches made MPD consume 100% CPU in a busy wait: when the music_pipe was full, it did not wait (with notify_wait()) for free chunks, because a variable has a different meaning now. Always pass "true" as the "wait" parameter.
* decoder_api: pass const pointer to decoder_data()Max Kellermann2009-01-171-1/+1
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* pcm_convert: return PCM buffer from pcm_convert()Max Kellermann2009-01-171-20/+6
| | | | | | Removed yet another superfluous buffer layer: return the PCM buffer from pcm_convert() instead of copying PCM data into the caller-supplied buffer.
* decoder_api: use music_pipe_write() instead of music_pipe_append()Max Kellermann2009-01-171-14/+33
| | | | | Copy PCM data to the music_pipe_write() buffer, and apply replay gain / normalization to it, instead of manipulating the source buffer.
* decoder_api: added assertion on partial framesMax Kellermann2009-01-161-0/+1
| | | | Decoder plugins must not send partial frames.
* decoder_api: added G_GNUC_UNUSED attribute to decoder_initialized()Max Kellermann2009-01-151-1/+1
| | | | In NDEBUG, the parameter "decoder" is not used.
* decoder_api: don't ignore DECODE_COMMAND_STOPMax Kellermann2009-01-131-2/+1
| | | | | | When the decoder thread is waiting for free chunks in the music pipe, don't ignore the STOP command. Just return dc.command without further checks.
* pcm: added pcm_convert_deinit(), pcm_resample_deinit()Max Kellermann2009-01-071-2/+0
| | | | | Free memory allocated by libsamplerate when the output or the decoder is closed.
* song: allocate the result of song_get_url()Max Kellermann2009-01-041-3/+2
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* input_stream: added tag() methodMax Kellermann2009-01-031-65/+59
| | | | | The tag() method reads a tag from the stream. This replaces the meta_name and meta_title attributes.
* decoder_api: moved code to do_send_tag(), free temporary tagMax Kellermann2009-01-031-7/+17
| | | | | | | This patch fixes a minor memory leak: when decoder_tag() attempted to send a merged tag object (created by tag_add_stream_tags()), and was interrupted by a decoder command, it did not free the temporary merged tag object.
* decoder_api: use GLib instead of utils.hMax Kellermann2009-01-031-4/+5
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* pcm_utils: check pcm_convert()==0Max Kellermann2008-12-241-0/+7
| | | | | | | | It is illegal to pass an empty audio buffer around. pcm_resample() sometimes seems to result in 0 samples, maybe related to libsamplerate. To work around that problem, add special checks after both pcm_convert() invocations. Removed the pcm_resample()==0 checks from pcm_convert().
* decoder_api.c: replaced mpd_unused by G_GNUC_UNUSEDThomas Jansen2008-11-241-6/+7
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* decoder: check audio_format_valid() in all decodersMax Kellermann2008-11-211-0/+1
| | | | Refuse to play audio formats which are not supported by MPD.
* decoder: ignore decoder_data() calls with length==0Max Kellermann2008-11-211-1/+2
| | | | | Pushing buffers with a zero length into the MPD core causes failures; don't let them pass beyond the decoder plugi API.
* decoder: pass the correct buffer length to pcm_convert()Max Kellermann2008-11-181-5/+6
| | | | | | | | When a global audio format is configured (setting "audio_output_format"), decoder_data() overwrote the "length" parameter with the size of the output buffer (result of pcm_convert_size()). Declare a separate variable for the output buffer length.
* decoder: check length==0 in decoder_read()Max Kellermann2008-11-151-0/+3
| | | | | When the caller passes length==0, decoder_read() entered an endless loop. Check that condition before entering the "while" loop.
* decoder: additional dc.command checks in decoder_data()Max Kellermann2008-11-131-0/+3
| | | | | When a command is sent while the decoder waits for a free chunk in the music pipe, it was not returned by decoder_data().
* decoder: wait for the player only if the music pipe is fullMax Kellermann2008-11-131-4/+5
| | | | Prevent superfluous wakeups and a deadlock condition.
* decoder: check dc.command at the beginning of decoder_data()Max Kellermann2008-11-131-0/+4
| | | | | | Seeking was somewhat broken in some decoder plugins because they sent empty chunks, and never got a command. Check the decoder command before doing anything else in decoder_data().
* decoder: ignore SEEK commands during initializationMax Kellermann2008-11-131-1/+4
| | | | | When the decoder receives a SEEK during initialization, it should ignore that for now. The old code made most decoders abort.
* replay_gain: no CamelCaseMax Kellermann2008-11-111-3/+3
| | | | Renamed functions and variables.
* decoder: fixed assertion failure for decoder==NULL in decoder_read()Max Kellermann2008-11-111-1/+2
| | | | | | The assertion on dc.state in decoder_read() was too strict: when a decoder tried to call decoder_read() from tag_dup(), the decoder state was NONE. Allow this special case.
* decoder: added more assertionsMax Kellermann2008-11-101-0/+10
| | | | Added a lot of assertions checking the state of the decoder plugin.
* decoder: no CamelCaseMax Kellermann2008-11-031-4/+4
| | | | Renamed variables and functions.
* decoder_api: send song tag in decoder_data()Max Kellermann2008-11-031-8/+26
| | | | | Before passing the first chunk to the audio output device, send the current song's tag.
* decoder_api: automatically send stream tagMax Kellermann2008-11-031-0/+51
| | | | | | | | | | If an input stream provides tags (e.g. from an icecast server), send them in the decoder_data() and decoder_tag() methods. Removed the according code from the mp3 and oggvorbis plugins - decoders shouldn't have to care about stream tags. This patch also adds the missing decoder_tag() invocation to the mp3 plugin.
* decoder_api: no CamelCaseMax Kellermann2008-11-031-34/+32
| | | | Renamed variables.
* decoder_api: added decoder_tag()Max Kellermann2008-11-021-0/+13
| | | | Provide an API for submitting additional tags from the stream.
* decoder_api: pass "seekable" flag to decoder_initialized()Max Kellermann2008-11-021-16/+8
| | | | | | Don't pass the "seekable" flag with every decoder_data() invocation. Since that flag won't change within the file, it is enough to pass it to decoder_initialized() once per file.
* decoder: replaced music_pipe.audioFormat with dc.out_audio_formatMax Kellermann2008-11-021-10/+13
| | | | | | | .. 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.
* music_pipe: renamed ob_* functions to music_pipe_*Max Kellermann2008-11-021-2/+2
| | | | Rename all functions to the new prefix.
* renamed outputBuffer.[ch] to pipe.[ch]Max Kellermann2008-11-021-1/+1
| | | | | | | 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.
* decoder: manage decoder list in a static arrayMax Kellermann2008-11-011-11/+0
| | | | | Currently, there is no way to dynamically load decoder plugins, thus we don't need a dynamic list to manage them.
* decoder: use bool for return values and flagsMax Kellermann2008-10-301-2/+2
| | | | | Don't return 0/-1 on success/error, but true/false. Instead of int, use bool for storing flags.
* decoder: automatically flush the output buffer after decoder exitsMax Kellermann2008-10-291-5/+0
| | | | | | | A decoder_flush() invocation was missing in the FLAC plugin, resulting in casual assertion failures due to a wrong assumption about the last chunk's audio format. It's much easier to remove that decoder_flush() function and make the decoder thread call ob_flush().
* decoder_api: make the audio_format parameter mandatoryMax Kellermann2008-10-291-5/+3
| | | | | There are no callers which pass audio_format==NULL, and it shouldn't be allowed.
* decoder_api: removed decoder_clear()Max Kellermann2008-10-291-5/+4
| | | | | Call ob_clear() in decoder_command_finished() instead of implementing that call in every decoder plugin.
* decoder_api: don't cast need_chunks() to intMax Kellermann2008-10-291-4/+4
| | | | | need_chunks() returns a decoder_command enum. Store its return value as this type.
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