2023-10-13 20:52:26 CST W41D5

avutil_error.go

@@ -0,0 +1,78 @@
+package ffmpeg
+
+/*
+#include <libavutil/common.h>
+#include <libavutil/error.h>
+*/
+import "C"
+
+// AVERROR returns a negative error code from a POSIX error code, to return from library functions.
+func AVERROR(e int32) int32 {
+	if C.EDOM > 0 {
+		return (-e)
+	}
+	return e
+}
+
+// AVUNERROR returns a POSIX error code from a library function error return value.
+func AVUNERROR(e int32) int32 {
+	if C.EDOM > 0 {
+		return (-e)
+	}
+	return e
+}
+
+// Error handling
+const (
+	AVERROR_BSF_NOT_FOUND      = int32(C.AVERROR_BSF_NOT_FOUND)
+	AVERROR_BUG                = int32(C.AVERROR_BUG)
+	AVERROR_BUFFER_TOO_SMALL   = int32(C.AVERROR_BUFFER_TOO_SMALL)
+	AVERROR_DECODER_NOT_FOUND  = int32(C.AVERROR_DECODER_NOT_FOUND)
+	AVERROR_DEMUXER_NOT_FOUND  = int32(C.AVERROR_DEMUXER_NOT_FOUND)
+	AVERROR_ENCODER_NOT_FOUND  = int32(C.AVERROR_ENCODER_NOT_FOUND)
+	AVERROR_EOF                = int32(C.AVERROR_EOF)
+	AVERROR_EXIT               = int32(C.AVERROR_EXIT)
+	AVERROR_EXTERNAL           = int32(C.AVERROR_EXTERNAL)
+	AVERROR_FILTER_NOT_FOUND   = int32(C.AVERROR_FILTER_NOT_FOUND)
+	AVERROR_INVALIDDATA        = int32(C.AVERROR_INVALIDDATA)
+	AVERROR_MUXER_NOT_FOUND    = int32(C.AVERROR_MUXER_NOT_FOUND)
+	AVERROR_OPTION_NOT_FOUND   = int32(C.AVERROR_OPTION_NOT_FOUND)
+	AVERROR_PATCHWELCOME       = int32(C.AVERROR_PATCHWELCOME)
+	AVERROR_PROTOCOL_NOT_FOUND = int32(C.AVERROR_PROTOCOL_NOT_FOUND)
+
+	AVERROR_STREAM_NOT_FOUND = int32(C.AVERROR_STREAM_NOT_FOUND)
+
+	AVERROR_BUG2              = int32(C.AVERROR_BUG2)
+	AVERROR_UNKNOWN           = int32(C.AVERROR_UNKNOWN)
+	AVERROR_EXPERIMENTAL      = int32(C.AVERROR_EXPERIMENTAL)
+	AVERROR_INPUT_CHANGED     = int32(C.AVERROR_INPUT_CHANGED)
+	AVERROR_OUTPUT_CHANGED    = int32(C.AVERROR_OUTPUT_CHANGED)
+	AVERROR_HTTP_BAD_REQUEST  = int32(C.AVERROR_HTTP_BAD_REQUEST)
+	AVERROR_HTTP_UNAUTHORIZED = int32(C.AVERROR_HTTP_UNAUTHORIZED)
+	AVERROR_HTTP_FORBIDDEN    = int32(C.AVERROR_HTTP_FORBIDDEN)
+	AVERROR_HTTP_NOT_FOUND    = int32(C.AVERROR_HTTP_NOT_FOUND)
+	AVERROR_HTTP_OTHER_4XX    = int32(C.AVERROR_HTTP_OTHER_4XX)
+	AVERROR_HTTP_SERVER_ERROR = int32(C.AVERROR_HTTP_SERVER_ERROR)
+	AV_ERROR_MAX_STRING_SIZE  = int32(C.AV_ERROR_MAX_STRING_SIZE)
+)
+
+// AvStrerror puts a description of the AVERROR code errnum in errbuf.
+// In case of failure the global variable errno is set to indicate the
+// error. Even in case of failure AvStrerror() will print a generic
+// error message indicating the errnum provided to errbuf.
+func AvStrerror(errnum int32, errbuf *int8, errbufSize uint) int32 {
+	return (int32)(C.av_strerror((C.int)(errnum), (*C.char)(errbuf), (C.size_t)(errbufSize)))
+}
+
+// AvMakeErrorString fills the provided buffer with a string containing an error string
+// corresponding to the AVERROR code errnum.
+func AvMakeErrorString(errbuf *int8, errbufSize uint, errnum int32) *int8 {
+	return (*int8)(C.av_make_error_string((*C.char)(errbuf), (C.size_t)(errbufSize), (C.int)(errnum)))
+}
+
+// AvErr2str
+func AvErr2str(errnum int32) string {
+	buf := make([]int8, AV_ERROR_MAX_STRING_SIZE)
+	return C.GoString(C.av_make_error_string((*C.char)(&buf[0]),
+		(C.size_t)(AV_ERROR_MAX_STRING_SIZE), (C.int)(errnum)))
+}