pub unsafe extern "C" fn avcodec_parameters_alloc() -> *mut AVCodecParameters展开描述
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). The returned struct must be freed with avcodec_parameters_free().
pub unsafe extern "C" fn avcodec_parameters_alloc() -> *mut AVCodecParametersAllocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0). The returned struct must be freed with avcodec_parameters_free().