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* pcm_convert: use GError for error handlingMax Kellermann2009-07-231-11/+3
| | | | | Don't abort the whole MPD process when the conversion fails. This has been a denial-of-service attack vector for years.
* filter/volume: check the flag audio_format.reverse_endianMax Kellermann2009-07-221-0/+7
| | | | The volume plugin does not work for reverse_endian samples.
* Add reverse_endian field to struct audio_format and handle conversionDavid Woodhouse2009-07-191-0/+1
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* mixer/software: new mixer which controls filter/volumeMax Kellermann2009-07-061-0/+1
| | | | | | | This mixer plugin may be used instead of the traditional global software mixer. It integrates with the "volume" filter plugin, and can control the software volume of an audio output which has no hardware mixer.
* filter/convert: new filter which calls pcm_convert() on demandMax Kellermann2009-07-062-0/+190
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* filter/chain: new library for creating a chain of filtersMax Kellermann2009-07-062-0/+225
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* filter/volume: don't use volume_level_get()Max Kellermann2009-07-052-6/+67
| | | | Added public methods to get and set the current volume.
* filter: added "volume" pluginMax Kellermann2009-07-031-0/+136
| | | | | | | | | | The "volume" filter plugin will replace the current software volume code. One "volume" filter may be attached to each output device. This will allow the user to use hardware mixers for some devices, and software mixers for other devices at the same time. Currently, neither the filter API nor the "volume" plugin is integrated into MPD.
* filter: added new plugin API for filtersMax Kellermann2009-07-031-0/+93
The filter API allows us to implement software volume as a pluggable filter, and we will be able to integrate libraries like SoX.