Macros
#define	AVERROR(e)
#define	AVUNERROR(e)
#define	FFERRTAG(a, b, c, d)
#define	AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F')
	Bitstream filter not found.
#define	AVERROR_BUG FFERRTAG( 'B','U','G','!')
	Internal bug, also see AVERROR_BUG2.
#define	AVERROR_BUFFER_TOO_SMALL FFERRTAG( 'B','U','F','S')
	Buffer too small.
#define	AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C')
	Decoder not found.
#define	AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M')
	Demuxer not found.
#define	AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C')
	Encoder not found.
#define	AVERROR_EOF FFERRTAG( 'E','O','F',' ')
	End of file.
#define	AVERROR_EXIT FFERRTAG( 'E','X','I','T')
	Immediate exit was requested; the called function should not be restarted.
#define	AVERROR_EXTERNAL FFERRTAG( 'E','X','T',' ')
	Generic error in an external library.
#define	AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L')
	Filter not found.
#define	AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A')
	Invalid data found when processing input.
#define	AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X')
	Muxer not found.
#define	AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T')
	Option not found.
#define	AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E')
	Not yet implemented in FFmpeg, patches welcome.
#define	AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O')
	Protocol not found.
#define	AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R')
	Stream not found.
#define	AVERROR_BUG2 FFERRTAG( 'B','U','G',' ')
	This is semantically identical to AVERROR_BUG it has been introduced in Libav after our AVERROR_BUG and with a modified value.
#define	AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N')
	Unknown error, typically from an external library.
#define	AVERROR_EXPERIMENTAL (-0x2bb2afa8)
	Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
#define	AVERROR_INPUT_CHANGED (-0x636e6701)
	Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED).
#define	AVERROR_OUTPUT_CHANGED (-0x636e6702)
	Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED).
#define	AVERROR_HTTP_BAD_REQUEST FFERRTAG(0xF8,'4','0','0')
#define	AVERROR_HTTP_UNAUTHORIZED FFERRTAG(0xF8,'4','0','1')
#define	AVERROR_HTTP_FORBIDDEN FFERRTAG(0xF8,'4','0','3')
#define	AVERROR_HTTP_NOT_FOUND FFERRTAG(0xF8,'4','0','4')
#define	AVERROR_HTTP_TOO_MANY_REQUESTS FFERRTAG(0xF8,'4','2','9')
#define	AVERROR_HTTP_OTHER_4XX FFERRTAG(0xF8,'4','X','X')
#define	AVERROR_HTTP_SERVER_ERROR FFERRTAG(0xF8,'5','X','X')
#define	AV_ERROR_MAX_STRING_SIZE 64
#define	av_err2str(errnum)
	Convenience macro, the return value should be used only directly in function arguments but never stand-alone.

Functions
int	av_strerror (int errnum, char *errbuf, size_t errbuf_size)
	Put a description of the AVERROR code errnum in errbuf.
static char *	av_make_error_string (char *errbuf, size_t errbuf_size, int errnum)
	Fill the provided buffer with a string containing an error string corresponding to the AVERROR code errnum.

Detailed Description

Macro Definition Documentation

◆ AVERROR

#define AVERROR ( e )

Value:

(e)

Definition at line 45 of file error.h.

Referenced by dec_enc(), dec_enc(), decode(), decode(), decode_audio_frame(), decode_packet(), decode_packet(), decode_packet(), decode_write(), encode(), encode(), encode_audio_frame(), encode_write(), encode_write(), encode_write(), encode_write_frame(), filter_encode_write_frame(), get_format_from_sample_fmt(), init_fifo(), init_filter(), init_filter_graph(), init_filters(), init_filters(), init_filters(), init_input_frame(), init_packet(), main(), main(), open_codec_context(), open_codec_context(), open_input_file(), open_input_file(), open_input_file(), open_input_file(), open_input_file(), open_input_file(), open_output_file(), open_output_file(), set_hwframe_ctx(), str_to_dict(), and write_frame().

◆ AVUNERROR

#define AVUNERROR ( e )

Value:

(e)

Definition at line 46 of file error.h.

◆ FFERRTAG

#define FFERRTAG	(	a,
		b,
		c,
		d )

Value:

(-(int)MKTAG(a, b, c, d))

MKTAG

#define MKTAG(a, b, c, d)

Definition macros.h:55

Definition at line 49 of file error.h.

◆ AVERROR_BSF_NOT_FOUND

#define AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F')

Bitstream filter not found.

Definition at line 51 of file error.h.

◆ AVERROR_BUG

#define AVERROR_BUG FFERRTAG( 'B','U','G','!')

Internal bug, also see AVERROR_BUG2.

Definition at line 52 of file error.h.

◆ AVERROR_BUFFER_TOO_SMALL

#define AVERROR_BUFFER_TOO_SMALL FFERRTAG( 'B','U','F','S')

Buffer too small.

Definition at line 53 of file error.h.

◆ AVERROR_DECODER_NOT_FOUND

#define AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C')

Decoder not found.

Examples: transcode.c.

Definition at line 54 of file error.h.

Referenced by open_input_file().

◆ AVERROR_DEMUXER_NOT_FOUND

#define AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M')

Demuxer not found.

Definition at line 55 of file error.h.

◆ AVERROR_ENCODER_NOT_FOUND

#define AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C')

Encoder not found.

Definition at line 56 of file error.h.

◆ AVERROR_EOF

#define AVERROR_EOF FFERRTAG( 'E','O','F',' ')

End of file.

Examples: avio_read_callback.c, decode_audio.c, decode_filter_audio.c, decode_filter_video.c, decode_video.c, demux_decode.c, encode_audio.c, encode_video.c, extract_mvs.c, filter_audio.c, hw_decode.c, mux.c, qsv_decode.c, qsv_transcode.c, remux.c, transcode.c, transcode_aac.c, vaapi_encode.c, and vaapi_transcode.c.

Definition at line 57 of file error.h.

Referenced by dec_enc(), dec_enc(), decode(), decode(), decode_audio_frame(), decode_packet(), decode_packet(), decode_packet(), decode_write(), encode(), encode(), encode_audio_frame(), encode_write(), encode_write(), encode_write_frame(), filter_encode_write_frame(), main(), main(), read_packet(), and write_frame().

◆ AVERROR_EXIT

#define AVERROR_EXIT FFERRTAG( 'E','X','I','T')

Immediate exit was requested; the called function should not be restarted.

Examples: transcode_aac.c.

Definition at line 58 of file error.h.

Referenced by add_samples_to_fifo(), init_output_frame(), load_encode_and_write(), main(), open_input_file(), open_output_file(), and read_decode_convert_and_store().

◆ AVERROR_EXTERNAL

#define AVERROR_EXTERNAL FFERRTAG( 'E','X','T',' ')

Generic error in an external library.

Definition at line 59 of file error.h.

◆ AVERROR_FILTER_NOT_FOUND

#define AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L')

Filter not found.

Examples: filter_audio.c.

Definition at line 60 of file error.h.

Referenced by init_filter_graph().

◆ AVERROR_INVALIDDATA

#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A')

Invalid data found when processing input.

Examples: transcode.c.

Definition at line 61 of file error.h.

Referenced by open_output_file().

◆ AVERROR_MUXER_NOT_FOUND

#define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X')

Muxer not found.

Definition at line 62 of file error.h.

◆ AVERROR_OPTION_NOT_FOUND

#define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T')

Option not found.

Definition at line 63 of file error.h.

◆ AVERROR_PATCHWELCOME

#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E')

Not yet implemented in FFmpeg, patches welcome.

Definition at line 64 of file error.h.

◆ AVERROR_PROTOCOL_NOT_FOUND

#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O')

Protocol not found.

Definition at line 65 of file error.h.

◆ AVERROR_STREAM_NOT_FOUND

#define AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R')

Stream not found.

Definition at line 67 of file error.h.

◆ AVERROR_BUG2

#define AVERROR_BUG2 FFERRTAG( 'B','U','G',' ')

This is semantically identical to AVERROR_BUG it has been introduced in Libav after our AVERROR_BUG and with a modified value.

Definition at line 72 of file error.h.

◆ AVERROR_UNKNOWN

#define AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N')

Unknown error, typically from an external library.

Examples: remux.c, and transcode.c.

Definition at line 73 of file error.h.

Referenced by init_filter(), main(), and open_output_file().

◆ AVERROR_EXPERIMENTAL

#define AVERROR_EXPERIMENTAL (-0x2bb2afa8)

Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.

Definition at line 74 of file error.h.

◆ AVERROR_INPUT_CHANGED

#define AVERROR_INPUT_CHANGED (-0x636e6701)

Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED).

Definition at line 75 of file error.h.

◆ AVERROR_OUTPUT_CHANGED

#define AVERROR_OUTPUT_CHANGED (-0x636e6702)

Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED).

Definition at line 76 of file error.h.

◆ AVERROR_HTTP_BAD_REQUEST

#define AVERROR_HTTP_BAD_REQUEST FFERRTAG(0xF8,'4','0','0')

Definition at line 78 of file error.h.

◆ AVERROR_HTTP_UNAUTHORIZED

#define AVERROR_HTTP_UNAUTHORIZED FFERRTAG(0xF8,'4','0','1')

Definition at line 79 of file error.h.

◆ AVERROR_HTTP_FORBIDDEN

#define AVERROR_HTTP_FORBIDDEN FFERRTAG(0xF8,'4','0','3')

Definition at line 80 of file error.h.

◆ AVERROR_HTTP_NOT_FOUND

#define AVERROR_HTTP_NOT_FOUND FFERRTAG(0xF8,'4','0','4')

Definition at line 81 of file error.h.

◆ AVERROR_HTTP_TOO_MANY_REQUESTS

#define AVERROR_HTTP_TOO_MANY_REQUESTS FFERRTAG(0xF8,'4','2','9')

Definition at line 82 of file error.h.

◆ AVERROR_HTTP_OTHER_4XX

#define AVERROR_HTTP_OTHER_4XX FFERRTAG(0xF8,'4','X','X')

Definition at line 83 of file error.h.

◆ AVERROR_HTTP_SERVER_ERROR

#define AVERROR_HTTP_SERVER_ERROR FFERRTAG(0xF8,'5','X','X')

Definition at line 84 of file error.h.

◆ AV_ERROR_MAX_STRING_SIZE

#define AV_ERROR_MAX_STRING_SIZE 64

Definition at line 86 of file error.h.

◆ av_err2str

#define av_err2str ( errnum )

Value:

av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0}, AV_ERROR_MAX_STRING_SIZE, errnum)

av_make_error_string

static char * av_make_error_string(char *errbuf, size_t errbuf_size, int errnum)

Fill the provided buffer with a string containing an error string corresponding to the AVERROR code e...

Definition error.h:112

AV_ERROR_MAX_STRING_SIZE

#define AV_ERROR_MAX_STRING_SIZE

Definition error.h:86

Convenience macro, the return value should be used only directly in function arguments but never stand-alone.

Examples: avio_list_dir.c, avio_read_callback.c, decode_filter_audio.c, decode_filter_video.c, demux_decode.c, encode_video.c, extract_mvs.c, filter_audio.c, mux.c, qsv_decode.c, qsv_transcode.c, remux.c, transcode.c, transcode_aac.c, vaapi_encode.c, and vaapi_transcode.c.

Definition at line 122 of file error.h.

Referenced by convert_samples(), dec_enc(), dec_enc(), decode_audio_frame(), decode_packet(), decode_packet(), encode_audio_frame(), encode_write(), encode_write(), encode_write(), init_converted_samples(), init_output_frame(), list_op(), main(), main(), open_audio(), open_input_file(), open_input_file(), open_input_file(), open_output_file(), open_video(), set_hwframe_ctx(), write_frame(), write_output_file_header(), and write_output_file_trailer().

Function Documentation

◆ av_strerror()

int av_strerror	(	int	errnum,
		char *	errbuf,
		size_t	errbuf_size )

Put 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 av_strerror() will print a generic error message indicating the errnum provided to errbuf.

Parameters

errnum	error code to describe
errbuf	buffer to which description is written
errbuf_size	the size in bytes of errbuf

Returns: 0 on success, a negative value if a description for errnum cannot be found

Referenced by av_make_error_string().

◆ av_make_error_string()

char * av_make_error_string	(	char *	errbuf,
		size_t	errbuf_size,
		int	errnum )

inlinestatic

Fill the provided buffer with a string containing an error string corresponding to the AVERROR code errnum.

Parameters

errbuf	a buffer
errbuf_size	size in bytes of errbuf
errnum	error code to describe

Returns: the buffer in input, filled with the error description

See also: av_strerror()

Definition at line 112 of file error.h.

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ AVERROR

◆ AVUNERROR

◆ FFERRTAG

◆ AVERROR_BSF_NOT_FOUND

◆ AVERROR_BUG

◆ AVERROR_BUFFER_TOO_SMALL

◆ AVERROR_DECODER_NOT_FOUND

◆ AVERROR_DEMUXER_NOT_FOUND

◆ AVERROR_ENCODER_NOT_FOUND

◆ AVERROR_EOF

◆ AVERROR_EXIT

◆ AVERROR_EXTERNAL

◆ AVERROR_FILTER_NOT_FOUND

◆ AVERROR_INVALIDDATA

◆ AVERROR_MUXER_NOT_FOUND

◆ AVERROR_OPTION_NOT_FOUND

◆ AVERROR_PATCHWELCOME

◆ AVERROR_PROTOCOL_NOT_FOUND

◆ AVERROR_STREAM_NOT_FOUND

◆ AVERROR_BUG2

◆ AVERROR_UNKNOWN

◆ AVERROR_EXPERIMENTAL

◆ AVERROR_INPUT_CHANGED

◆ AVERROR_OUTPUT_CHANGED

◆ AVERROR_HTTP_BAD_REQUEST

◆ AVERROR_HTTP_UNAUTHORIZED

◆ AVERROR_HTTP_FORBIDDEN

◆ AVERROR_HTTP_NOT_FOUND

◆ AVERROR_HTTP_TOO_MANY_REQUESTS

◆ AVERROR_HTTP_OTHER_4XX

◆ AVERROR_HTTP_SERVER_ERROR

◆ AV_ERROR_MAX_STRING_SIZE

◆ av_err2str

Function Documentation

◆ av_strerror()

◆ av_make_error_string()