gstreamer-rs/gstreamer-pbutils/src/functions.rs

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// Take a look at the license at the top of the repository in the LICENSE file.
use glib::translate::*;
use std::ptr;
pub unsafe trait CodecTag<'a>: gst::Tag<'a, TagType = &'a str> {}
unsafe impl<'a> CodecTag<'a> for gst::tags::ContainerFormat {}
unsafe impl<'a> CodecTag<'a> for gst::tags::AudioCodec {}
unsafe impl<'a> CodecTag<'a> for gst::tags::VideoCodec {}
unsafe impl<'a> CodecTag<'a> for gst::tags::SubtitleCodec {}
unsafe impl<'a> CodecTag<'a> for gst::tags::Codec {}
pub fn pb_utils_add_codec_description_to_tag_list_for_tag<'a, T: CodecTag<'a>>(
taglist: &mut gst::TagListRef,
caps: &gst::CapsRef,
) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
let codec_tag = T::tag_name();
unsafe {
glib::result_from_gboolean!(
ffi::gst_pb_utils_add_codec_description_to_tag_list(
taglist.as_mut_ptr(),
codec_tag.to_glib_none().0,
caps.as_ptr(),
),
"Failed to find codec description",
)
}
}
#[doc(alias = "gst_pb_utils_add_codec_description_to_tag_list")]
pub fn pb_utils_add_codec_description_to_tag_list(
taglist: &mut gst::TagListRef,
caps: &gst::CapsRef,
) -> Result<(), glib::BoolError> {
assert_initialized_main_thread!();
unsafe {
glib::result_from_gboolean!(
ffi::gst_pb_utils_add_codec_description_to_tag_list(
taglist.as_mut_ptr(),
ptr::null_mut(),
caps.as_ptr(),
),
"Failed to find codec description",
)
}
}
#[doc(alias = "gst_pb_utils_get_encoder_description")]
pub fn pb_utils_get_encoder_description(
caps: &gst::CapsRef,
) -> Result<glib::GString, glib::error::BoolError> {
assert_initialized_main_thread!();
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unsafe {
match from_glib_full(ffi::gst_pb_utils_get_encoder_description(caps.as_ptr())) {
Some(s) => Ok(s),
None => Err(glib::bool_error!("Failed to get encoder description")),
}
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}
}
#[doc(alias = "gst_pb_utils_get_decoder_description")]
pub fn pb_utils_get_decoder_description(
caps: &gst::CapsRef,
) -> Result<glib::GString, glib::error::BoolError> {
assert_initialized_main_thread!();
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unsafe {
match from_glib_full(ffi::gst_pb_utils_get_decoder_description(caps.as_ptr())) {
Some(s) => Ok(s),
None => Err(glib::bool_error!("Failed to get decoder description")),
}
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}
}
#[doc(alias = "gst_pb_utils_get_codec_description")]
pub fn pb_utils_get_codec_description(
caps: &gst::CapsRef,
) -> Result<glib::GString, glib::error::BoolError> {
assert_initialized_main_thread!();
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unsafe {
match from_glib_full(ffi::gst_pb_utils_get_codec_description(caps.as_ptr())) {
Some(s) => Ok(s),
None => Err(glib::bool_error!("Failed to get codec description")),
}
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}
}