use std::error;
use std::ffi::CStr;
use std::fmt;
use std::io;
use std::os::raw::c_char;
use std::str::from_utf8_unchecked;
use ffi::*;
use libc::c_int;
#[derive(Copy, Clone)]
pub enum Error {
Bug,
Bug2,
Unknown,
Experimental,
BufferTooSmall,
Eof,
Exit,
External,
InvalidData,
PatchWelcome,
InputChanged,
OutputChanged,
BsfNotFound,
DecoderNotFound,
DemuxerNotFound,
EncoderNotFound,
OptionNotFound,
MuxerNotFound,
FilterNotFound,
ProtocolNotFound,
StreamNotFound,
HttpBadRequest,
HttpUnauthorized,
HttpForbidden,
HttpNotFound,
HttpOther4xx,
HttpServerError,
}
impl From<c_int> for Error {
fn from(value: c_int) -> Error {
match value {
AVERROR_BSF_NOT_FOUND => Error::BsfNotFound,
AVERROR_BUG => Error::Bug,
AVERROR_BUFFER_TOO_SMALL => Error::BufferTooSmall,
AVERROR_DECODER_NOT_FOUND => Error::DecoderNotFound,
AVERROR_DEMUXER_NOT_FOUND => Error::DemuxerNotFound,
AVERROR_ENCODER_NOT_FOUND => Error::EncoderNotFound,
AVERROR_EOF => Error::Eof,
AVERROR_EXIT => Error::Exit,
AVERROR_EXTERNAL => Error::External,
AVERROR_FILTER_NOT_FOUND => Error::FilterNotFound,
AVERROR_INVALIDDATA => Error::InvalidData,
AVERROR_MUXER_NOT_FOUND => Error::MuxerNotFound,
AVERROR_OPTION_NOT_FOUND => Error::OptionNotFound,
AVERROR_PATCHWELCOME => Error::PatchWelcome,
AVERROR_PROTOCOL_NOT_FOUND => Error::ProtocolNotFound,
AVERROR_STREAM_NOT_FOUND => Error::StreamNotFound,
AVERROR_BUG2 => Error::Bug2,
AVERROR_UNKNOWN => Error::Unknown,
AVERROR_EXPERIMENTAL => Error::Experimental,
AVERROR_INPUT_CHANGED => Error::InputChanged,
AVERROR_OUTPUT_CHANGED => Error::OutputChanged,
AVERROR_HTTP_BAD_REQUEST => Error::HttpBadRequest,
AVERROR_HTTP_UNAUTHORIZED => Error::HttpUnauthorized,
AVERROR_HTTP_FORBIDDEN => Error::HttpForbidden,
AVERROR_HTTP_NOT_FOUND => Error::HttpNotFound,
AVERROR_HTTP_OTHER_4XX => Error::HttpOther4xx,
AVERROR_HTTP_SERVER_ERROR => Error::HttpServerError,
_ => Error::Unknown,
}
}
}
impl Into<c_int> for Error {
fn into(self) -> c_int {
match self {
Error::BsfNotFound => AVERROR_BSF_NOT_FOUND,
Error::Bug => AVERROR_BUG,
Error::BufferTooSmall => AVERROR_BUFFER_TOO_SMALL,
Error::DecoderNotFound => AVERROR_DECODER_NOT_FOUND,
Error::DemuxerNotFound => AVERROR_DEMUXER_NOT_FOUND,
Error::EncoderNotFound => AVERROR_ENCODER_NOT_FOUND,
Error::Eof => AVERROR_EOF,
Error::Exit => AVERROR_EXIT,
Error::External => AVERROR_EXTERNAL,
Error::FilterNotFound => AVERROR_FILTER_NOT_FOUND,
Error::InvalidData => AVERROR_INVALIDDATA,
Error::MuxerNotFound => AVERROR_MUXER_NOT_FOUND,
Error::OptionNotFound => AVERROR_OPTION_NOT_FOUND,
Error::PatchWelcome => AVERROR_PATCHWELCOME,
Error::ProtocolNotFound => AVERROR_PROTOCOL_NOT_FOUND,
Error::StreamNotFound => AVERROR_STREAM_NOT_FOUND,
Error::Bug2 => AVERROR_BUG2,
Error::Unknown => AVERROR_UNKNOWN,
Error::Experimental => AVERROR_EXPERIMENTAL,
Error::InputChanged => AVERROR_INPUT_CHANGED,
Error::OutputChanged => AVERROR_OUTPUT_CHANGED,
Error::HttpBadRequest => AVERROR_HTTP_BAD_REQUEST,
Error::HttpUnauthorized => AVERROR_HTTP_UNAUTHORIZED,
Error::HttpForbidden => AVERROR_HTTP_FORBIDDEN,
Error::HttpNotFound => AVERROR_HTTP_NOT_FOUND,
Error::HttpOther4xx => AVERROR_HTTP_OTHER_4XX,
Error::HttpServerError => AVERROR_HTTP_SERVER_ERROR,
}
}
}
impl From<Error> for io::Error {
fn from(value: Error) -> io::Error {
io::Error::new(io::ErrorKind::Other, value)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
f.write_str(error::Error::description(self))
}
}
impl fmt::Debug for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
f.write_str("ffmpeg::Error(")?;
f.write_str(&format!("{}: ", AVUNERROR((*self).into())))?;
fmt::Display::fmt(self, f)?;
f.write_str(")")
}
}
#[inline(always)]
fn index(error: &Error) -> usize {
match *error {
Error::BsfNotFound => 0,
Error::Bug => 1,
Error::BufferTooSmall => 2,
Error::DecoderNotFound => 3,
Error::DemuxerNotFound => 4,
Error::EncoderNotFound => 5,
Error::Eof => 6,
Error::Exit => 7,
Error::External => 8,
Error::FilterNotFound => 9,
Error::InvalidData => 10,
Error::MuxerNotFound => 11,
Error::OptionNotFound => 12,
Error::PatchWelcome => 13,
Error::ProtocolNotFound => 14,
Error::StreamNotFound => 15,
Error::Bug2 => 16,
Error::Unknown => 17,
Error::Experimental => 18,
Error::InputChanged => 19,
Error::OutputChanged => 20,
Error::HttpBadRequest => 21,
Error::HttpUnauthorized => 22,
Error::HttpForbidden => 23,
Error::HttpNotFound => 24,
Error::HttpOther4xx => 25,
Error::HttpServerError => 26,
}
}
static mut STRINGS: [[c_char; AV_ERROR_MAX_STRING_SIZE as usize]; 27] =
[[0; AV_ERROR_MAX_STRING_SIZE as usize]; 27];
pub fn register_all() {
unsafe {
av_strerror(
Error::Bug.into(),
STRINGS[index(&Error::Bug)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::Bug2.into(),
STRINGS[index(&Error::Bug2)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::Unknown.into(),
STRINGS[index(&Error::Unknown)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::Experimental.into(),
STRINGS[index(&Error::Experimental)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::BufferTooSmall.into(),
STRINGS[index(&Error::BufferTooSmall)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::Eof.into(),
STRINGS[index(&Error::Eof)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::Exit.into(),
STRINGS[index(&Error::Exit)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::External.into(),
STRINGS[index(&Error::External)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::InvalidData.into(),
STRINGS[index(&Error::InvalidData)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::PatchWelcome.into(),
STRINGS[index(&Error::PatchWelcome)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::InputChanged.into(),
STRINGS[index(&Error::InputChanged)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::OutputChanged.into(),
STRINGS[index(&Error::OutputChanged)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::BsfNotFound.into(),
STRINGS[index(&Error::BsfNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::DecoderNotFound.into(),
STRINGS[index(&Error::DecoderNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::DemuxerNotFound.into(),
STRINGS[index(&Error::DemuxerNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::EncoderNotFound.into(),
STRINGS[index(&Error::EncoderNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::OptionNotFound.into(),
STRINGS[index(&Error::OptionNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::MuxerNotFound.into(),
STRINGS[index(&Error::MuxerNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::FilterNotFound.into(),
STRINGS[index(&Error::FilterNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::ProtocolNotFound.into(),
STRINGS[index(&Error::ProtocolNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::StreamNotFound.into(),
STRINGS[index(&Error::StreamNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpBadRequest.into(),
STRINGS[index(&Error::HttpBadRequest)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpUnauthorized.into(),
STRINGS[index(&Error::HttpUnauthorized)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpForbidden.into(),
STRINGS[index(&Error::HttpForbidden)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpNotFound.into(),
STRINGS[index(&Error::HttpNotFound)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpOther4xx.into(),
STRINGS[index(&Error::HttpOther4xx)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
av_strerror(
Error::HttpServerError.into(),
STRINGS[index(&Error::HttpServerError)].as_mut_ptr(),
AV_ERROR_MAX_STRING_SIZE,
);
}
}
impl error::Error for Error {
fn description(&self) -> &str {
unsafe { from_utf8_unchecked(CStr::from_ptr(STRINGS[index(self)].as_ptr()).to_bytes()) }
}
}