Patch some of the FFmpeg specific error process macros

Author: ldm0

Cargo.toml

@@ -29,12 +29,10 @@ doctest = false
 
 [dependencies]
 once_cell = "1.4.0"
+libc = "0.2.71"
 
 [build-dependencies]
 bindgen = "0.54.0"
 once_cell = "1.4.0"
 pkg-config = "0.3.17"
 num_cpus = "1.13.0"
-
-[dev-dependencies]
-libc = "0.2.71"

src/avutil/avutil.rs

@@ -0,0 +1 @@
+pub const AV_NOPTS_VALUE: i64 = 0x8000000000000000u64 as i64;

src/avutil/common.rs

@@ -0,0 +1,9 @@
+#[allow(non_snake_case)]
+pub const fn MKBETAG(a: u8, b: u8, c: u8, d: u8) -> u32 {
+    (d as u32) | ((c as u32) << 8) | ((b as u32) << 16) | ((a as u32) << 24)
+}
+
+#[allow(non_snake_case)]
+pub const fn MKTAG(a: u8, b: u8, c: u8, d: u8) -> u32 {
+    (a as u32) | ((b as u32) << 8) | ((c as u32) << 16) | ((d as u32) << 24)
+}

src/avutil/error.rs

@@ -0,0 +1,51 @@
+use libc::c_int;
+use super::common::MKTAG;
+
+#[allow(non_snake_case)]
+pub const fn AVERROR(e: c_int) -> c_int {
+    -e
+}
+
+#[allow(non_snake_case)]
+pub const fn AVUNERROR(e: c_int) -> c_int {
+    -e
+}
+
+macro_rules! FFERRTAG {
+	($a:expr, $b:expr, $c:expr, $d:expr) =>
+		(-(MKTAG($a, $b, $c, $d) as c_int))
+}
+
+pub const AVERROR_BSF_NOT_FOUND: c_int      = FFERRTAG!(0xF8, b'B', b'S', b'F');
+pub const AVERROR_BUG: c_int                = FFERRTAG!(b'B', b'U', b'G', b'!');
+pub const AVERROR_BUFFER_TOO_SMALL: c_int   = FFERRTAG!(b'B', b'U', b'F', b'S');
+pub const AVERROR_DECODER_NOT_FOUND: c_int  = FFERRTAG!(0xF8, b'D', b'E', b'C');
+pub const AVERROR_DEMUXER_NOT_FOUND: c_int  = FFERRTAG!(0xF8, b'D', b'E', b'M');
+pub const AVERROR_ENCODER_NOT_FOUND: c_int  = FFERRTAG!(0xF8, b'E', b'N', b'C');
+pub const AVERROR_EOF: c_int                = FFERRTAG!(b'E', b'O', b'F', b' ');
+pub const AVERROR_EXIT: c_int               = FFERRTAG!(b'E', b'X', b'I', b'T');
+pub const AVERROR_EXTERNAL: c_int           = FFERRTAG!(b'E', b'X', b'T', b' ');
+pub const AVERROR_FILTER_NOT_FOUND: c_int   = FFERRTAG!(0xF8, b'F', b'I', b'L');
+pub const AVERROR_INVALIDDATA: c_int        = FFERRTAG!(b'I', b'N', b'D', b'A');
+pub const AVERROR_MUXER_NOT_FOUND: c_int    = FFERRTAG!(0xF8, b'M', b'U', b'X');
+pub const AVERROR_OPTION_NOT_FOUND: c_int   = FFERRTAG!(0xF8, b'O', b'P', b'T');
+pub const AVERROR_PATCHWELCOME: c_int       = FFERRTAG!(b'P', b'A', b'W', b'E');
+pub const AVERROR_PROTOCOL_NOT_FOUND: c_int = FFERRTAG!(0xF8, b'P', b'R', b'O');
+
+pub const AVERROR_STREAM_NOT_FOUND: c_int   = FFERRTAG!(0xF8, b'S', b'T', b'R');
+
+pub const AVERROR_BUG2: c_int               = FFERRTAG!(b'B', b'U', b'G', b' ');
+pub const AVERROR_UNKNOWN: c_int            = FFERRTAG!(b'U', b'N', b'K', b'N');
+pub const AVERROR_EXPERIMENTAL: c_int       = -0x2bb2afa8; ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
+pub const AVERROR_INPUT_CHANGED: c_int      = -0x636e6701; ///< Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED)
+pub const AVERROR_OUTPUT_CHANGED: c_int     = -0x636e6702; ///< Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED)
+
+
+pub const AVERROR_HTTP_BAD_REQUEST: c_int   = FFERRTAG!(0xF8, b'4', b'0', b'0');
+pub const AVERROR_HTTP_UNAUTHORIZED: c_int  = FFERRTAG!(0xF8, b'4', b'0', b'1');
+pub const AVERROR_HTTP_FORBIDDEN: c_int     = FFERRTAG!(0xF8, b'4', b'0', b'3');
+pub const AVERROR_HTTP_NOT_FOUND: c_int     = FFERRTAG!(0xF8, b'4', b'0', b'4');
+pub const AVERROR_HTTP_OTHER_4XX: c_int     = FFERRTAG!(0xF8, b'4', b'X', b'X');
+pub const AVERROR_HTTP_SERVER_ERROR: c_int  = FFERRTAG!(0xF8, b'5', b'X', b'X');
+
+pub const AV_ERROR_MAX_STRING_SIZE: c_int   = 64;

src/avutil/mod.rs

@@ -0,0 +1,3 @@
+pub mod common;
+pub mod error;
+pub mod avutil;

src/lib.rs

@@ -8,3 +8,6 @@
 pub mod ffi {
     include!(concat!(env!("OUT_DIR"), "/binding.rs"));
 }
+
+#[rustfmt::skip]
+pub mod avutil;