device: add handling

This commit is contained in:
meh 2015-05-12 03:58:26 +02:00
parent b7a015c79a
commit 1150527c35
4 changed files with 164 additions and 0 deletions

55
src/device/input.rs Normal file
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@ -0,0 +1,55 @@
use std::ptr;
use ffi::*;
use ::format;
use ::Format;
pub struct AudioIter(*mut AVInputFormat);
impl Iterator for AudioIter {
type Item = Format;
fn next(&mut self) -> Option<<Self as Iterator>::Item> {
unsafe {
let ptr = av_input_audio_device_next(self.0);
if ptr == ptr::null_mut() && self.0 != ptr::null_mut() {
None
}
else {
self.0 = ptr;
Some(Format::Input(format::Input::wrap(ptr)))
}
}
}
}
pub fn audio() -> AudioIter {
AudioIter(ptr::null_mut())
}
pub struct VideoIter(*mut AVInputFormat);
impl Iterator for VideoIter {
type Item = Format;
fn next(&mut self) -> Option<<Self as Iterator>::Item> {
unsafe {
let ptr = av_input_video_device_next(self.0);
if ptr == ptr::null_mut() && self.0 != ptr::null_mut() {
None
}
else {
self.0 = ptr;
Some(Format::Input(format::Input::wrap(ptr)))
}
}
}
}
pub fn video() -> VideoIter {
VideoIter(ptr::null_mut())
}

56
src/device/mod.rs Normal file
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@ -0,0 +1,56 @@
pub mod input;
pub mod output;
use std::ffi::CStr;
use std::str::from_utf8_unchecked;
use std::marker::PhantomData;
use ffi::*;
pub struct Info<'a> {
ptr: *mut AVDeviceInfo,
_marker: PhantomData<&'a i32>,
}
impl<'a> Info<'a> {
pub fn wrap(ptr: *mut AVDeviceInfo) -> Self {
Info { ptr: ptr, _marker: PhantomData }
}
pub fn name(&self) -> &'a str {
unsafe {
from_utf8_unchecked(CStr::from_ptr((*self.ptr).device_name).to_bytes())
}
}
pub fn description(&self) -> &'a str {
unsafe {
from_utf8_unchecked(CStr::from_ptr((*self.ptr).device_description).to_bytes())
}
}
}
pub fn register_all() {
unsafe {
avdevice_register_all();
}
}
pub fn version() -> u32 {
unsafe {
avdevice_version()
}
}
pub fn configuration() -> &'static str {
unsafe {
from_utf8_unchecked(CStr::from_ptr(avdevice_configuration()).to_bytes())
}
}
pub fn license() -> &'static str {
unsafe {
from_utf8_unchecked(CStr::from_ptr(avdevice_license()).to_bytes())
}
}

51
src/device/output.rs Normal file
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@ -0,0 +1,51 @@
use std::ptr;
use ffi::*;
use ::format;
use ::Format;
pub struct AudioIter(*mut AVOutputFormat);
impl Iterator for AudioIter {
type Item = Format;
fn next(&mut self) -> Option<<Self as Iterator>::Item> {
unsafe {
let ptr = av_output_audio_device_next(self.0);
if ptr == ptr::null_mut() && self.0 != ptr::null_mut() {
None
}
else {
Some(Format::Output(format::Output::wrap(ptr)))
}
}
}
}
pub fn audio() -> AudioIter {
AudioIter(ptr::null_mut())
}
pub struct VideoIter(*mut AVOutputFormat);
impl Iterator for VideoIter {
type Item = Format;
fn next(&mut self) -> Option<<Self as Iterator>::Item> {
unsafe {
let ptr = av_output_video_device_next(self.0);
if ptr == ptr::null_mut() && self.0 != ptr::null_mut() {
None
}
else {
Some(Format::Output(format::Output::wrap(ptr)))
}
}
}
}
pub fn video() -> VideoIter {
VideoIter(ptr::null_mut())
}

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@ -25,3 +25,5 @@ pub use codec::discard::Discard;
pub use codec::codec::Codec; pub use codec::codec::Codec;
pub use codec::encoder::{self, Encode}; pub use codec::encoder::{self, Encode};
pub use codec::decoder::{self, Decode}; pub use codec::decoder::{self, Decode};
pub mod device;