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* added flag "decoder.seeking"Max Kellermann2008-08-261-1/+8
| | | | | | | | | | 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.
* added decoder_read()Max Kellermann2008-08-261-0/+24
| | | | | | | | | On our way to stabilize the decoder API, we will one day remove the input stream functions. The most basic function, read() will be provided by decoder_api.h with this patch. It already contains a loop (still with manual polling), error/eof handling and decoder command checks. This kind of code used to be duplicated in all decoder plugins.
* added decoder_plugin_register()Max Kellermann2008-08-261-0/+11
| | | | | | | With the functions decoder_plugin_register() and decoder_plugin_unregister(), decoder plugins can register a "secondary" plugin, like the flac input plugin does this for "oggflac".
* eliminate OUTPUT_BUFFER_DC_STOP, OUTPUT_BUFFER_DC_SEEKMax Kellermann2008-08-261-11/+11
| | | | | (Ab)use the decoder_command enumeration, which has nearly the same values and the same meaning.
* added decoder_get_url()Max Kellermann2008-08-261-0/+5
| | | | | | The wavpack decoder plugin implements a hack, and it needs the song URL for that. This API (and the hack) should be revised later, but add that function for now.
* added decoder_seek_where() and decoder_seek_error()Max Kellermann2008-08-261-2/+16
| | | | | Provide access to seeking for the decoder plugins; they have to know where to seek, and they need a way to tell us that seeking has failed.
* added decoder_command_finished() to decoder_api.hMax Kellermann2008-08-261-3/+12
| | | | | | | 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().
* added decoder_get_command()Max Kellermann2008-08-261-0/+5
| | | | | | Another big patch which hides internal mpd APIs from decoder plugins: decoder plugins regularly poll dc->command; expose it with a decoder_api.h function.
* moved convState to struct decoderMax Kellermann2008-08-261-4/+6
| | | | | | 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.
* moved struct AudioFormat to audio_format.hMax Kellermann2008-08-261-0/+1
| | | | | We want to expose the AudioFormat structure to plugins; remove some clutter by moving its declaration to a separate header file.
* added parameter total_time to decoder_initialized()Max Kellermann2008-08-261-1/+4
| | | | | Similar to the previous patch: pass total_time instead of manipulating dc->totalTime directly.
* added audio_format parameter to decoder_initialized()Max Kellermann2008-08-261-1/+8
| | | | | | dc->audioFormat is set once by the decoder plugins before invoking decoder_initialized(); hide dc->audioFormat and let the decoder pass an AudioFormat pointer to decoder_initialized().
* added decoder_clear() and decoder_flush()Max Kellermann2008-08-261-0/+10
| | | | | | We are now beginning to remove direct structure accesses from the decoder plugins. decoder_clear() and decoder_flush() mask two very common buffer functions.
* added decoder_data()Max Kellermann2008-08-261-0/+80
| | | | | Moved all of the player-waiting code to decoder_data(), to make OutputBuffer more generic.
* added decoder_initialized()Max Kellermann2008-08-261-0/+31
decoder_initialized() sets the state to DECODE_STATE_DECODE and wakes up the player thread. It is called by the decoder plugin after its internal initialization is finished. More arguments will be added later to prevent direct accesses to the DecoderControl struct.