• Sebastian Dröge's avatar
    gst/audioconvert/: Implement dithering and noise shaping in audioconvert. By default now · dbb857b9
    Sebastian Dröge authored
    Original commit message from CVS:
    * gst/audioconvert/Makefile.am:
    * gst/audioconvert/audioconvert.c: (audio_convert_get_func_index),
    (check_default), (audio_convert_prepare_context),
    (audio_convert_clean_context), (audio_convert_convert):
    * gst/audioconvert/audioconvert.h:
    * gst/audioconvert/gstaudioconvert.c:
    (gst_audio_convert_dithering_get_type),
    (gst_audio_convert_ns_get_type), (gst_audio_convert_class_init),
    (gst_audio_convert_init), (gst_audio_convert_set_caps),
    (gst_audio_convert_set_property), (gst_audio_convert_get_property):
    * gst/audioconvert/gstaudioconvert.h:
    * gst/audioconvert/gstaudioquantize.c:
    (gst_audio_quantize_setup_noise_shaping),
    (gst_audio_quantize_free_noise_shaping),
    (gst_audio_quantize_setup_dither),
    (gst_audio_quantize_free_dither),
    (gst_audio_quantize_setup_quantize_func),
    (gst_audio_quantize_setup), (gst_audio_quantize_free):
    * gst/audioconvert/gstaudioquantize.h:
    Implement dithering and noise shaping in audioconvert. By default now
    TPDF dithering (and no noise shaping) will be used when converting
    from a higher bit depth to 20 bit depth or smaller, otherwise
    everything will be as it is now.
    For the last audioconvert in a pipeline it would make sense to
    use some kind of noise shaping, enabling it by default for all
    conversions would give undesired results though. Fixes #360246.
    * tests/check/elements/audioconvert.c: (setup_audioconvert),
    (GST_START_TEST):
    Adjust unit test for the new audioconvert.
    dbb857b9
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