libavformat/avio.h File Reference

Buffered I/O operations. More...

#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/dict.h"
#include "libavutil/log.h"
#include "libavformat/version.h"

Go to the source code of this file.

Data Structures

struct AVIOInterruptCB

Callback for checking whether to abort blocking functions. More...

struct AVIOContext

Bytestream IO Context. More...

Defines

#define AVIO_SEEKABLE_NORMAL   0x0001

Seeking works like for a local file.

#define AVSEEK_SIZE   0x10000

Passing this as the "whence" parameter to a seek function causes it to return the filesize without seeking anywhere.

#define AVSEEK_FORCE   0x20000

Oring this flag as into the "whence" parameter to a seek function causes it to seek by any means (like reopening and linear reading) or other normally unreasonble means that can be extreemly slow.

#define AVIO_FLAG_NONBLOCK   8

Use non-blocking mode.

#define AVIO_FLAG_DIRECT   0x8000

Use direct mode.

URL open modes

The flags argument to avio_open must be one of the following constants, optionally ORed with other flags.

#define AVIO_FLAG_READ   1

read-only

#define AVIO_FLAG_WRITE   2

write-only

#define AVIO_FLAG_READ_WRITE   (AVIO_FLAG_READ|AVIO_FLAG_WRITE)

read-write pseudo flag

Functions

int avio_check (const char *url, int flags)

Return AVIO_FLAG_* access flags corresponding to the access permissions of the resource in url, or a negative value corresponding to an AVERROR code in case of failure.

AVIOContext * avio_alloc_context (unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))

Allocate and initialize an AVIOContext for buffered I/O.

void avio_w8 (AVIOContext *s, int b)

void avio_write (AVIOContext *s, const unsigned char *buf, int size)

void avio_wl64 (AVIOContext *s, uint64_t val)

void avio_wb64 (AVIOContext *s, uint64_t val)

void avio_wl32 (AVIOContext *s, unsigned int val)

void avio_wb32 (AVIOContext *s, unsigned int val)

void avio_wl24 (AVIOContext *s, unsigned int val)

void avio_wb24 (AVIOContext *s, unsigned int val)

void avio_wl16 (AVIOContext *s, unsigned int val)

void avio_wb16 (AVIOContext *s, unsigned int val)

int avio_put_str (AVIOContext *s, const char *str)

Write a NULL-terminated string.

int avio_put_str16le (AVIOContext *s, const char *str)

Convert an UTF-8 string to UTF-16LE and write it.

int64_t avio_seek (AVIOContext *s, int64_t offset, int whence)

fseek() equivalent for AVIOContext.

int64_t avio_skip (AVIOContext *s, int64_t offset)

Skip given number of bytes forward.

static av_always_inline int64_t avio_tell (AVIOContext *s)

ftell() equivalent for AVIOContext.

int64_t avio_size (AVIOContext *s)

Get the filesize.

int url_feof (AVIOContext *s)

feof() equivalent for AVIOContext.

int avio_printf (AVIOContext *s, const char *fmt,...) av_printf_format(2

int void avio_flush (AVIOContext *s)

int avio_read (AVIOContext *s, unsigned char *buf, int size)

Read size bytes from AVIOContext into buf.

int avio_get_str (AVIOContext *pb, int maxlen, char *buf, int buflen)

Read a string from pb into buf.

int avio_get_str16le (AVIOContext *pb, int maxlen, char *buf, int buflen)

Read a UTF-16 string from pb and convert it to UTF-8.

int avio_get_str16be (AVIOContext *pb, int maxlen, char *buf, int buflen)

int avio_open (AVIOContext **s, const char *url, int flags)

Create and initialize a AVIOContext for accessing the resource indicated by url.

int avio_open2 (AVIOContext **s, const char *url, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options)

Create and initialize a AVIOContext for accessing the resource indicated by url.

int avio_close (AVIOContext *s)

Close the resource accessed by the AVIOContext s and free it.

int avio_open_dyn_buf (AVIOContext **s)

Open a write only memory stream.

int avio_close_dyn_buf (AVIOContext *s, uint8_t **pbuffer)

Return the written size and a pointer to the buffer.

const char * avio_enum_protocols (void **opaque, int output)

Iterate through names of available protocols.

int avio_pause (AVIOContext *h, int pause)

Pause and resume playing - only meaningful if using a network streaming protocol (e.g.

int64_t avio_seek_time (AVIOContext *h, int stream_index, int64_t timestamp, int flags)

Seek to a given timestamp relative to some component stream.

Functions for reading from AVIOContext

Note:
return 0 if EOF, so you cannot use it if EOF handling is necessary

int avio_r8 (AVIOContext *s)

unsigned int avio_rl16 (AVIOContext *s)

unsigned int avio_rl24 (AVIOContext *s)

unsigned int avio_rl32 (AVIOContext *s)

uint64_t avio_rl64 (AVIOContext *s)

unsigned int avio_rb16 (AVIOContext *s)

unsigned int avio_rb24 (AVIOContext *s)

unsigned int avio_rb32 (AVIOContext *s)

uint64_t avio_rb64 (AVIOContext *s)

Detailed Description

Buffered I/O operations.

Definition in file avio.h.

Define Documentation

#define AVIO_FLAG_DIRECT 0x8000

Use direct mode.

avio_read and avio_write should if possible be satisfied directly instead of going through a buffer, and avio_seek will always call the underlying seek function directly.

Definition at line 335 of file avio.h.

Referenced by ffio_fdopen().

#define AVIO_FLAG_NONBLOCK 8

Use non-blocking mode.

If this flag is set, operations on the context will return AVERROR(EAGAIN) if they can not be performed immediately. If this flag is not set, operations on the context will never return AVERROR(EAGAIN). Note that this flag does not affect the opening/connecting of the context. Connecting a protocol will always block if necessary (e.g. on network protocols) but never hang (e.g. on busy devices). Warning: non-blocking protocols is work-in-progress; this flag may be silently ignored.

Definition at line 327 of file avio.h.

Referenced by do_tls_poll(), retry_transfer_wrapper(), sctp_read(), sctp_write(), tcp_read(), tcp_write(), udp_read(), and udp_write().

#define AVIO_FLAG_READ 1

read-only

Definition at line 308 of file avio.h.

Referenced by build_feed_streams(), crypto_open(), ffio_init_context(), ffio_set_buf_size(), ffurl_read(), ffurl_read_complete(), file_check(), find_image_range(), get_preset_file_2(), hls_read(), init_input(), main(), matroska_read_header(), mmsh_open_internal(), mov_open_dref(), open_input(), opt_output_file(), parse_playlist(), read_mfra(), read_packet(), sap_read_header(), tcp_shutdown(), udp_close(), udp_open(), and url_resetbuf().

#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE)

read-write pseudo flag

Definition at line 310 of file avio.h.

Referenced by gopher_open(), http_open_cnx(), mms_open(), rtmp_open(), and tls_open().

#define AVIO_FLAG_WRITE 2

write-only

Definition at line 309 of file avio.h.

Referenced by build_feed_streams(), crypto_open(), dump_attachment(), ffio_fdopen(), ffio_init_context(), ffio_set_buf_size(), ffurl_connect(), ffurl_write(), file_check(), hls_open(), http_connect(), http_shutdown(), main(), md5_close(), md5_open(), opt_output_file(), rtmp_open(), rtp_new_av_stream(), sap_write_header(), seg_write_header(), seg_write_packet(), segment_start(), tcp_shutdown(), udp_open(), url_resetbuf(), write_fragment(), and write_packet().

#define AVIO_SEEKABLE_NORMAL 0x0001

Seeking works like for a local file.

Definition at line 38 of file avio.h.

Referenced by ffio_fdopen(), and ffio_init_context().

#define AVSEEK_FORCE 0x20000

Oring this flag as into the "whence" parameter to a seek function causes it to seek by any means (like reopening and linear reading) or other normally unreasonble means that can be extreemly slow.

This may be ignored by the seek code.

Definition at line 211 of file avio.h.

Referenced by avio_seek(), and ffurl_seek().

#define AVSEEK_SIZE 0x10000

Passing this as the "whence" parameter to a seek function causes it to return the filesize without seeking anywhere.

Supporting this is optional. If it is not supported then the seek function will return <0.

Definition at line 203 of file avio.h.

Referenced by avio_size(), bluray_seek(), cache_seek(), ffurl_size(), http_seek(), and wtvfile_seek().

Function Documentation

AVIOContext* avio_alloc_context	(	unsigned char *	buffer,
		int	buffer_size,
		int	write_flag,
		void *	opaque,
		int()(void opaque, uint8_t *buf, int buf_size)	read_packet,
		int()(void opaque, uint8_t *buf, int buf_size)	write_packet,
		int64_t()(void opaque, int64_t offset, int whence)	seek
	)

Allocate and initialize an AVIOContext for buffered I/O.

It must be later freed with av_free().

Parameters:

	buffer	Memory block for input/output operations via AVIOContext. The buffer must be allocated with av_malloc() and friends.
	buffer_size	The buffer size is very important for performance. For protocols with fixed blocksize it should be set to this blocksize. For others a typical size is a cache page, e.g. 4kb.
	write_flag	Set to 1 if the buffer should be writable, 0 otherwise.
	opaque	An opaque pointer to user-specific data.
	read_packet	A function for refilling the buffer, may be NULL.
	write_packet	A function for writing the buffer contents, may be NULL.
	seek	A function for seeking to specified byte position, may be NULL.

Returns:: Allocated AVIOContext or NULL on failure.

Definition at line 104 of file aviobuf.c.

Referenced by ffio_fdopen(), http_receive_data(), rdt_parse_packet(), read_gab2_sub(), swf_read_header(), url_open_dyn_buf_internal(), and wtvfile_open_sector().

int avio_check	(	const char *	url,
		int	flags
	)

Return AVIO_FLAG_* access flags corresponding to the access permissions of the resource in url, or a negative value corresponding to an AVERROR code in case of failure.

The returned access flags are masked by the value in flags.

Note:: This function is intrinsically unsafe, in the sense that the checked resource may change its existence or permission status from one call to another. Thus you should not trust the returned value, unless you are sure that no other processes are accessing the checked resource.

Definition at line 338 of file avio.c.

Referenced by assert_file_overwrite(), build_feed_streams(), and find_image_range().

int avio_close ( AVIOContext * s )

Close the resource accessed by the AVIOContext s and free it.

This function can only be used if s was opened by avio_open().

Returns:: 0 on success, an AVERROR < 0 on error.

Definition at line 786 of file aviobuf.c.

Referenced by avformat_close_input(), avformat_open_input(), build_feed_streams(), dump_attachment(), exit_program(), ff_rtp_chain_mux_open(), ff_rtsp_undo_setup(), main(), mov_read_close(), new_output_stream(), opt_output_file(), parse_playlist(), read_mfra(), read_packet(), sap_write_close(), seg_write_header(), seg_write_packet(), seg_write_trailer(), segment_end(), segment_start(), write_fragment(), and write_packet().

int avio_close_dyn_buf	(	AVIOContext *	s,
		uint8_t **	pbuffer
	)

Return the written size and a pointer to the buffer.

The buffer must be freed with av_free(). Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer.

Parameters:

	s	IO context
	pbuffer	pointer to a byte buffer

Returns:: the length of the byte buffer

Definition at line 941 of file aviobuf.c.

Referenced by asf_write_header1(), asfrtp_free_context(), asfrtp_parse_packet(), choose_pix_fmts(), close_connection(), compute_status(), decode_str(), ff_avc_parse_nal_units_buf(), ff_id3v2_write_apic(), ff_mov_add_hinted_packet(), ff_mov_close_hinting(), ff_rtp_chain_mux_open(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_punch_packets(), ff_rtsp_undo_setup(), free_fragment_if_needed(), get_line(), get_video_private_data(), h263_free_context(), h263_handle_packet(), http_prepare_data(), http_send_data(), id3v2_put_ttag(), latm_free_context(), latm_parse_packet(), mkv_flush_dynbuf(), mkv_write_codecprivate(), mov_flush_fragment(), mov_write_udta_tag(), ogg_write_page(), prepare_packet(), put_packet(), put_str16(), rtp_new_av_stream(), rtsp_parse_request(), svq3_extradata_free(), svq3_parse_packet(), tcp_write_packet(), vp8_free_context(), write_chapter(), write_globalinfo(), write_headers(), write_streaminfo(), and xiph_handle_packet().

const char* avio_enum_protocols	(	void **	opaque,
		int	output
	)

Iterate through names of available protocols.

Note:: it is recommended to use av_protocol_next() instead of this

Parameters:

	opaque	A private pointer representing current protocol. It must be a pointer to NULL on first iteration and will be updated by successive calls to avio_enum_protocols.
	output	If set to 1, iterate over output protocols, otherwise over input protocols.

Returns:: A static string containing the name of current protocol or NULL

Definition at line 87 of file avio.c.

Referenced by avio_enum_protocols(), and opt_protocols().

int void avio_flush ( AVIOContext * s )

Definition at line 185 of file aviobuf.c.

Referenced by a64_write_packet(), adts_write_packet(), aiff_write_header(), aiff_write_trailer(), asf_write_header(), asf_write_trailer(), av_write_trailer(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avio_close_dyn_buf(), avio_write(), caf_write_header(), caf_write_trailer(), crc_write_trailer(), daud_write_packet(), dump_attachment(), dv_write_packet(), ff_framehash_write_header(), ff_mov_write_packet(), ff_raw_write_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ffm_write_header(), ffm_write_trailer(), flac_write_packet(), flac_write_trailer(), flush_packet(), flv_write_packet(), framecrc_write_packet(), gif_write_header(), gif_write_trailer(), gif_write_video(), gxf_write_header(), gxf_write_packet(), gxf_write_trailer(), ivf_write_packet(), jacosub_write_header(), main(), md5_finish(), microdvd_write_header(), mkv_write_header(), mkv_write_trailer(), mov_flush_fragment(), mov_write_header(), mov_write_trailer(), mp2_write_trailer(), mp3_fix_xing(), mp3_write_xing(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_pes(), mpjpeg_write_header(), mpjpeg_write_packet(), mxf_write_footer(), mxf_write_packet(), mxf_write_partition(), nut_write_header(), nut_write_trailer(), ogg_write_page(), put_vcd_padding_sector(), rm_write_audio(), rm_write_header(), rm_write_trailer(), rm_write_video(), roq_write_header(), rso_write_header(), rso_write_trailer(), seg_write_header(), seg_write_packet(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), sox_write_trailer(), spdif_write_packet(), swf_write_header(), swf_write_trailer(), swf_write_video(), vc1test_write_packet(), vc1test_write_trailer(), write_fragment(), write_header(), write_packet(), and write_trailer().

int avio_get_str	(	AVIOContext *	pb,
		int	maxlen,
		char *	buf,
		int	buflen
	)

Read a string from pb into buf.

The reading will terminate when either a NULL character was encountered, maxlen bytes have been read, or nothing more can be read from pb. The result is guaranteed to be NULL-terminated, it will be truncated if buf is too small. Note that the string is not interpreted or validated in any way, it might get truncated in the middle of a sequence for multi-byte encodings.

Returns:: number of bytes read (is always <= maxlen). If reading ends on EOF or error, the return value will be one more than bytes actually read.

Definition at line 603 of file aviobuf.c.

Referenced by ape_tag_read_field(), ffm_read_header(), mov_read_chapters(), read_apic(), and read_info_chunk().

int avio_get_str16be	(	AVIOContext *	pb,
		int	maxlen,
		char *	buf,
		int	buflen
	)

Referenced by mov_read_chapters().

int avio_get_str16le	(	AVIOContext *	pb,
		int	maxlen,
		char *	buf,
		int	buflen
	)

Read a UTF-16 string from pb and convert it to UTF-8.

The reading will terminate when either a null or invalid character was encountered or maxlen bytes have been read.

Returns:: number of bytes read (is always <= maxlen)

Referenced by asf_read_ext_content_desc(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), get_attachment(), get_tag(), mov_read_chapters(), parse_legacy_attrib(), and read_gab2_sub().

int avio_open	(	AVIOContext **	s,
		const char *	url,
		int	flags
	)

Create and initialize a AVIOContext for accessing the resource indicated by url.

Note:: When the resource indicated by url has been opened in read+write mode, the AVIOContext can be used only for writing.

Parameters:

	s	Used to return the pointer to the created AVIOContext. In case of failure the pointed to value is set to NULL.
	flags	flags which control how the resource indicated by url is to be opened

Returns:: 0 in case of success, a negative value corresponding to an AVERROR code in case of failure

Definition at line 764 of file aviobuf.c.

Referenced by build_feed_streams(), and main().

int avio_open2	(	AVIOContext **	s,
		const char *	url,
		int	flags,
		const AVIOInterruptCB *	int_cb,
		AVDictionary **	options
	)

Create and initialize a AVIOContext for accessing the resource indicated by url.

Note:: When the resource indicated by url has been opened in read+write mode, the AVIOContext can be used only for writing.

Parameters:

	s	Used to return the pointer to the created AVIOContext. In case of failure the pointed to value is set to NULL.
	flags	flags which control how the resource indicated by url is to be opened
	int_cb	an interrupt callback to be used at the protocols level
	options	A dictionary filled with protocol-private options. On return this parameter will be destroyed and replaced with a dict containing options that were not found. May be NULL.

Returns:: 0 in case of success, a negative value corresponding to an AVERROR code in case of failure

Definition at line 769 of file aviobuf.c.

Referenced by avio_open(), dump_attachment(), get_preset_file_2(), init_input(), main(), mov_open_dref(), opt_output_file(), parse_playlist(), read_mfra(), read_packet(), seg_write_header(), seg_write_packet(), segment_start(), write_fragment(), and write_packet().

int avio_open_dyn_buf ( AVIOContext ** s )

Open a write only memory stream.

Parameters:

s

new IO context

Returns:: zero if no error.

Definition at line 929 of file aviobuf.c.

Referenced by asf_write_header1(), asfrtp_parse_packet(), choose_pix_fmts(), close_connection(), compute_status(), decode_str(), ff_avc_parse_nal_units_buf(), ff_id3v2_write_apic(), ff_mov_add_hinted_packet(), ff_mov_write_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_punch_packets(), get_line(), get_video_private_data(), h263_handle_packet(), http_prepare_data(), http_send_data(), id3v2_put_ttag(), latm_parse_packet(), mkv_write_codecprivate(), mkv_write_packet_internal(), mov_flush_fragment(), mov_write_udta_tag(), nut_write_packet(), ogg_write_page(), put_str16(), rtsp_parse_request(), svq3_parse_packet(), vp8_handle_packet(), write_chapter(), write_globalinfo(), write_headers(), write_streaminfo(), and xiph_handle_packet().

int avio_pause	(	AVIOContext *	h,
		int	pause
	)

Pause and resume playing - only meaningful if using a network streaming protocol (e.g.

MMS).

Parameters:

pause

1 for pause, 0 for resume

Definition at line 812 of file aviobuf.c.

Referenced by av_read_pause(), and av_read_play().

int avio_printf	(	AVIOContext *	s,
		const char *	fmt,
			...
	)

Warning:: currently size is limited

Referenced by choose_pix_fmts(), compute_status(), ff_framehash_write_header(), fmt_bytecount(), mov_write_isml_manifest(), param_write_hex(), param_write_int(), param_write_string(), rtsp_cmd_describe(), rtsp_cmd_options(), rtsp_cmd_pause(), rtsp_cmd_play(), rtsp_cmd_setup(), rtsp_cmd_teardown(), rtsp_reply_error(), rtsp_reply_header(), seg_write_header(), seg_write_packet(), and write_trailer().

int avio_put_str	(	AVIOContext *	s,
		const char *	str
	)

Write a NULL-terminated string.

Returns:: number of bytes written.

Definition at line 300 of file aviobuf.c.

Referenced by avi_write_info_tag(), ff_id3v2_write_apic(), ffm_write_header(), and id3v2_encode_string().

int avio_put_str16le	(	AVIOContext *	s,
		const char *	str
	)

Convert an UTF-8 string to UTF-16LE and write it.

Returns:: number of bytes written.

Definition at line 311 of file aviobuf.c.

Referenced by asf_write_header1(), id3v2_encode_string(), mms_put_utf16(), put_str16(), and write_tag().

int avio_r8 ( AVIOContext * s )

Definition at line 454 of file aviobuf.c.

Referenced by aea_read_header(), amf_parse_object(), amr_read_packet(), ape_tag_read_field(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_stream_properties(), asfrtp_parse_packet(), avi_read_header(), avi_sync(), avio_get_str(), avio_rb16(), avio_rb24(), avio_rl16(), avio_rl24(), avs_read_packet(), bfi_read_packet(), bmv_read_packet(), cdata_read_header(), cin_read_file_header(), cin_read_frame_header(), decode_str(), dv_read_header(), dxa_read_header(), ebml_read_num(), ebml_read_uint(), efi_read(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_get_line(), ff_id3v2_parse(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_mp4_read_dec_config_descr(), ff_mp4_read_descr(), ff_mp4_read_descr_len(), ff_sauce_read(), ff_voc_get_packet(), ffio_read_varlen(), ffm_read_header(), ffm_resync(), find_any_startcode(), find_next_start_code(), flv_read_header(), flv_read_metabody(), flv_read_packet(), flv_set_video_codec(), g723_1_read_packet(), get_attachment(), get_codec_data(), get_line(), get_pts(), get_size(), get_str(), get_str8(), get_strl(), get_token(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), iff_read_header(), ipmovie_read_header(), klv_decode_ber_length(), matroska_resync(), mmf_read_header(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_read_chan(), mov_read_chpl(), mov_read_ctts(), mov_read_dref(), mov_read_dvc1(), mov_read_elst(), mov_read_hdlr(), mov_read_mac_string(), mov_read_mdhd(), mov_read_mvhd(), mov_read_stco(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfhd(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_resync(), msnwc_tcp_read_header(), mtv_read_header(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_pixel_layout(), mxf_read_sync(), mxf_read_timecode_component(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_resync(), nut_read_packet(), nuv_header(), nuv_resync(), ogg_read_page(), parse_chunks(), parse_keyframes_index(), parse_MP4IODescrTag(), parse_MP4SLDescrTag(), parse_packet_header(), pmp_packet(), process_audio_header_eacs(), process_audio_header_elements(), qcp_read_header(), qcp_read_packet(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), read_apic(), read_arbitary(), read_braindead_odml_indx(), read_frame(), read_geobtag(), read_header(), read_line(), read_part_of_packet(), read_tfra(), read_ttag(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_metadata(), seq_parse_frame_data(), skip_reserved(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), sol_read_header(), spdif_read_packet(), swf_read_header(), swf_read_packet(), sync(), tmv_read_header(), vc1t_read_header(), vc1t_read_packet(), vid_read_packet(), wv_read_block_header(), wv_read_packet(), yop_read_header(), yuv4_read_header(), and yuv4_read_packet().

unsigned int avio_rb16 ( AVIOContext * s )

Definition at line 565 of file aviobuf.c.

Referenced by adx_read_header(), amf_get_string(), avio_rb24(), avio_rb32(), cdata_read_header(), daud_packet(), decode_str(), dxa_read_header(), ff_id3v2_parse(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_rm_parse_packet(), ff_rm_read_mdpr_codecdata(), ffm_read_data(), ffm_read_header(), get_aiff_header(), get_num(), gxf_header(), iff_read_header(), lmlm4_read_packet(), matroska_read_header(), mov_metadata_track_or_disc_number(), mov_read_chapters(), mov_read_dec3(), mov_read_dref(), mov_read_enda(), mov_read_fiel(), mov_read_mdhd(), mov_read_mvhd(), mov_read_tkhd(), mov_read_udta_string(), mp3_parse_vbr_tags(), mpegps_psm_parse(), mpegps_read_pes_header(), mxf_read_local_tags(), mxf_read_timecode_component(), parse_MP4IODescrTag(), parse_MP4ODescrTag(), parse_MP4SLDescrTag(), qt_rtp_parse_packet(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), rdt_load_mdpr(), read_header(), read_packet(), read_part_of_packet(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rm_read_metadata(), rso_read_header(), smjpeg_read_header(), and sync().

unsigned int avio_rb24 ( AVIOContext * s )

unsigned int avio_rb32 ( AVIOContext * s )

Definition at line 580 of file aviobuf.c.

Referenced by aiff_read_header(), amf_parse_object(), au_read_header(), avi_sync(), avio_rb64(), copy_tag(), decode_frame_header(), dv_read_header(), dxa_read_header(), ea_read_packet(), ebml_read_float(), ff_id3v2_parse(), ff_mov_read_chan(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_read_dec_config_descr(), ff_rm_read_mdpr_codecdata(), ffm_read_header(), flv_read_header(), flv_read_packet(), get_aiff_header(), get_packetheader(), get_tag(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), iff_read_header(), lmlm4_read_packet(), matroska_read_header(), matroska_resync(), mmf_read_header(), mov_read_chan(), mov_read_chap(), mov_read_chpl(), mov_read_cmov(), mov_read_ctts(), mov_read_default(), mov_read_dref(), mov_read_elst(), mov_read_ftyp(), mov_read_glbl(), mov_read_hdlr(), mov_read_mdhd(), mov_read_mvhd(), mov_read_pasp(), mov_read_stco(), mov_read_stps(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfhd(), mov_read_timecode_track(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mov_read_udta_string(), mov_read_wide(), mp3_parse_vbr_tags(), mpegps_psm_parse(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_index_table_segment(), mxf_read_material_package(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_read_track(), nuv_resync(), parse_keyframes_index(), parse_MP4SLDescrTag(), parse_packet_header(), process_audio_header_eacs(), qcp_read_header(), qt_rtp_parse_packet(), r3d_read_rdvo(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), r3d_read_reos(), rdt_load_mdpr(), read_atom(), read_desc_chunk(), read_header(), read_info_chunk(), read_mfra(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_tfra(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), siff_parse_soun(), siff_parse_vbv1(), smjpeg_read_header(), smjpeg_read_packet(), sox_read_header(), swf_read_header(), sync(), thp_read_header(), thp_read_packet(), vqf_read_header(), wc3_read_header(), and wc3_read_packet().

int avio_read	(	AVIOContext *	s,
		unsigned char *	buf,
		int	size
	)

Read size bytes from AVIOContext into buf.

Returns:: number of bytes read or AVERROR

Definition at line 463 of file aviobuf.c.

Referenced by add_metadata(), adx_read_header(), aiff_read_header(), amf_get_string(), amr_read_header(), amr_read_packet(), apc_read_header(), ape_read_header(), ape_read_packet(), ape_tag_read_field(), asf_read_stream_properties(), av_append_packet(), av_get_packet(), av_probe_input_buffer(), av_read(), avi_read_header(), avi_read_nikon(), avi_read_tag(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), bmv_read_packet(), cdxl_read_packet(), cin_read_packet(), copy_tag(), decode_frame(), decode_main_header(), decode_stream_header(), dv_read_header(), dv_read_packet(), dv_read_timecode(), dxa_read_packet(), ebml_read_ascii(), ebml_read_binary(), ff_ape_parse_tag(), ff_asf_parse_packet(), ff_get_guid(), ff_id3v1_read(), ff_id3v2_parse(), ff_id3v2_read(), ff_mp4_read_dec_config_descr(), ff_read_riff_info(), ff_rm_parse_packet(), ff_sauce_read(), ffm_read_data(), ffm_read_header(), film_read_header(), film_read_packet(), flac_read_header(), flic_read_header(), flic_read_packet(), flv_get_extradata(), flv_queue_extradata(), fourxm_read_header(), fourxm_read_packet(), g723_1_read_packet(), get_attachment(), get_codec_data(), get_meta(), get_metadata(), get_packet_header(), get_pts(), get_riff(), get_str(), get_tag(), idcin_read_header(), idcin_read_packet(), iff_read_header(), iff_read_packet(), ipmovie_read_header(), klv_read_packet(), load_ipmovie_packet(), lxf_read_header(), lxf_read_packet(), main(), modplug_read_header(), mov_read_chpl(), mov_read_cmov(), mov_read_dref(), mov_read_dvc1(), mov_read_extradata(), mov_read_ftyp(), mov_read_glbl(), mov_read_hdlr(), mov_read_smi(), mov_read_strf(), mov_read_stsz(), mov_read_udta_string(), mov_read_wave(), mpc8_parse_seektable(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_cryptographic_context(), mxf_read_generic_descriptor(), mxf_read_local_tags(), mxf_read_material_package(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_read_track(), mxg_update_cache(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), oma_read_header(), oma_read_seek(), opt_output_file(), parse_chunks(), parse_MP4DecConfigDescrTag(), process_ipmovie_chunk(), qcp_read_header(), r3d_read_red1(), read_apic(), read_frame(), read_geobtag(), read_header(), read_kuki_chunk(), read_packet(), read_part_of_packet(), read_whole_file(), rl2_read_header(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_extradata(), roq_read_header(), roq_read_packet(), seq_fill_buffer(), seq_read_packet(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), sox_read_header(), spdif_read_packet(), str_read_header(), str_read_packet(), swf_read_packet(), sync(), thp_read_header(), tta_read_header(), vc1t_read_header(), vid_read_packet(), vmd_read_header(), vmd_read_packet(), vqf_read_header(), vqf_read_packet(), wc3_read_header(), wc3_read_packet(), wsaud_read_header(), wsaud_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wtvfile_read_packet(), wv_read_block_header(), wv_read_packet(), xmv_process_packet_header(), yop_read_header(), and yop_read_packet().

unsigned int avio_rl16 ( AVIOContext * s )

Definition at line 533 of file aviobuf.c.

Referenced by ape_read_header(), asf_build_simple_index(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), avi_read_header(), avi_read_nikon(), avi_sync(), avio_rl24(), avio_rl32(), avs_read_header(), avs_read_packet(), cin_read_file_header(), cin_read_frame_header(), decode_str(), dfa_read_header(), ff_asf_get_packet(), ff_sauce_read(), ff_voc_get_packet(), ffm_read_header(), get_fourcc(), get_swf_tag(), get_tag(), get_value(), ingenient_read_packet(), mpc8_get_chunk_header(), msnwc_tcp_read_packet(), mtv_read_header(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), pmp_header(), process_video_header_cmv(), process_video_header_mdec(), qcp_read_header(), qt_rtp_parse_packet(), read_braindead_odml_indx(), read_frame(), read_gab2_sub(), read_header(), read_packet(), rl2_read_header(), seq_init_frame_buffers(), seq_parse_frame_data(), siff_parse_soun(), siff_parse_vbv1(), siff_read_packet(), sol_read_header(), spdif_read_packet(), swf_read_header(), swf_read_packet(), tmv_read_header(), tta_read_header(), vid_read_header(), vid_read_packet(), voc_read_header(), wv_read_block_header(), wv_read_packet(), xa_read_header(), xmv_read_header(), and yop_read_header().

unsigned int avio_rl24 ( AVIOContext * s )

Definition at line 541 of file aviobuf.c.

Referenced by bmv_read_packet(), ff_voc_get_packet(), mpc_read_header(), mtv_read_header(), read_header(), smacker_read_header(), vc1t_read_header(), vc1t_read_packet(), and wv_read_block_header().

unsigned int avio_rl32 ( AVIOContext * s )

Definition at line 549 of file aviobuf.c.

Referenced by aiff_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_frame_header(), asf_read_header(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), au_read_header(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_nikon(), avio_rl64(), avs_read_header(), bfi_read_header(), bfi_read_packet(), cin_read_file_header(), cin_read_frame_header(), dfa_read_header(), dxa_read_header(), ea_read_packet(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_mov_read_stsd_entries(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_voc_get_packet(), ffm_read_header(), flac_read_header(), fourxm_read_packet(), get_aiff_header(), get_attachment(), get_codec_data(), get_fourcc(), get_riff(), get_swf_tag(), get_tag(), get_value(), guess_ni_flag(), gxf_header(), gxf_read_index(), idcin_read_header(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), mmf_read_header(), mov_read_chan(), mov_read_cmov(), mov_read_default(), mov_read_dref(), mov_read_glbl(), mov_read_hdlr(), mov_read_meta(), mov_read_udta_string(), mov_read_wide(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), msnwc_tcp_read_packet(), mtv_read_header(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nuv_header(), ogg_read_page(), parse_chunks(), parse_legacy_attrib(), pmp_header(), pmp_packet(), process_audio_header_eacs(), process_audio_header_sead(), process_ea_header(), process_video_header_vp6(), qcp_read_header(), qcp_read_packet(), qt_rtp_parse_packet(), rdt_load_mdpr(), read_atom(), read_braindead_odml_indx(), read_desc_chunk(), read_gab2_sub(), read_header(), read_ints(), read_packet(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rpl_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), sol_read_header(), sox_read_header(), swf_read_header(), tmv_read_header(), tta_read_header(), txd_read_packet(), vc1t_read_header(), vc1t_read_packet(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wv_read_block_header(), wv_read_packet(), xa_read_header(), xmv_fetch_video_packet(), xmv_process_packet_header(), xmv_read_extradata(), xmv_read_header(), and xwma_read_header().

uint64_t avio_rl64 ( AVIOContext * s )

Definition at line 557 of file aviobuf.c.

Referenced by asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_frame_header(), asf_read_header(), asf_read_marker(), get_tag(), get_value(), gxf_track_tags(), nuv_header(), ogg_read_page(), parse_chunks(), read_braindead_odml_indx(), read_header(), read_packet(), and sox_read_header().

int64_t avio_seek	(	AVIOContext *	s,
		int64_t	offset,
		int	whence
	)

fseek() equivalent for AVIOContext.

Returns:: new position or AVERROR.

Definition at line 191 of file aviobuf.c.

Referenced by adjust_write_index(), adx_read_header(), aiff_read_header(), aiff_write_trailer(), ape_read_header(), ape_read_packet(), ape_read_seek(), asf_build_simple_index(), asf_read_header(), asf_read_pts(), asf_read_seek(), asf_write_header1(), asf_write_trailer(), av_seek(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_write_counters(), avi_write_ix(), avi_write_trailer(), avio_skip(), avio_tell(), bfi_read_header(), caf_write_trailer(), dv_read_header(), dv_read_seek(), dv_read_timecode(), dxa_read_header(), dxa_read_packet(), ea_read_packet(), efi_read(), end_ebml_master(), end_header(), estimate_timings_from_pts(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_gen_syncpoint_search(), ff_id3v1_read(), ff_id3v2_finish(), ff_id3v2_parse(), ff_id3v2_read(), ff_pcm_read_seek(), ff_restore_parser_state(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_seek_frame_binary(), ffm_read_data(), ffm_seek1(), film_read_packet(), find_and_decode_index(), find_any_startcode(), finish_chunk_noindex(), flac_read_header(), flac_write_trailer(), flic_read_header(), flv_read_header(), flv_read_packet(), flv_write_header(), flv_write_trailer(), get_attachment(), get_tag(), guess_ni_flag(), gxf_read_timestamp(), gxf_resync_media(), gxf_seek(), gxf_write_trailer(), gxf_write_umf_media_description(), iff_read_header(), ipmovie_read_header(), load_ipmovie_packet(), matroska_parse_seekhead_entry(), matroska_read_seek(), matroska_resync(), mkv_write_seekhead(), mkv_write_trailer(), mov_read_chapters(), mov_read_dref(), mov_read_dvc1(), mov_read_glbl(), mov_read_meta(), mov_read_packet(), mov_read_timecode_track(), mov_write_moof_tag(), mov_write_stsc_tag(), mov_write_stss_tag(), mov_write_tfrf_tag(), mov_write_tfrf_tags(), mov_write_trailer(), mp2_write_trailer(), mp3_fix_xing(), mp3_parse_vbr_tags(), mp3_read_header(), mpc8_handle_chunk(), mpc8_parse_seektable(), mpc8_read_seek(), mpc_read_header(), mpc_read_packet(), mpegps_read_dts(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_dts(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_resync(), mtv_read_header(), mxf_parse_handle_essence(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_seek(), mxf_seek_to_previous_partition(), mxf_write_footer(), mxf_write_partition(), nsv_parse_NSVf_header(), nsv_read_seek(), nut_read_header(), nuv_read_dts(), ogg_get_length(), ogg_read_timestamp(), ogg_restore(), ogg_update_checksum(), oma_read_seek(), parse_keyframes_index(), parse_media_type(), parse_mp4_descr(), process_ea_header(), put_swf_end_tag(), pva_read_timestamp(), qt_rtp_parse_packet(), r3d_read_header(), rdt_load_mdpr(), read_apic(), read_braindead_odml_indx(), read_frame(), read_header(), read_mfra(), read_packet(), read_seek(), read_tfra(), rl2_read_packet(), rm_read_dts(), rm_read_header(), rm_read_index(), rm_write_trailer(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rso_write_trailer(), seek_frame_byte(), seek_frame_generic(), seq_fill_buffer(), seq_init_frame_buffers(), seq_parse_frame_data(), seq_read_packet(), skip_reserved(), smacker_read_packet(), smjpeg_write_trailer(), sox_write_trailer(), str_read_header(), swf_write_trailer(), thp_read_header(), thp_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_seek(), update_size(), updatePacketSize(), updateSize(), vc1test_write_trailer(), vmd_read_header(), vmd_read_packet(), vqf_read_seek(), wc3_read_header(), wc3_read_packet(), write_fragments(), write_hint_packets(), write_root_table(), write_stream_codec_info(), write_trailer(), wsvqa_read_header(), wtvfile_open_sector(), wtvfile_read_packet(), wtvfile_seek(), wv_read_block_header(), wv_read_header(), wv_read_seek(), xmv_fetch_audio_packet(), xmv_fetch_new_packet(), xmv_fetch_video_packet(), yop_read_header(), and yop_read_seek().

int64_t avio_seek_time	(	AVIOContext *	h,
		int	stream_index,
		int64_t	timestamp,
		int	flags
	)

Seek to a given timestamp relative to some component stream.

Only meaningful if using a network streaming protocol (e.g. MMS.).

Parameters:

	stream_index	The stream index that the timestamp is relative to. If stream_index is (-1) the timestamp should be in AV_TIME_BASE units from the beginning of the presentation. If a stream_index >= 0 is used and the protocol does not support seeking based on component streams, the call will fail.
	timestamp	timestamp in AVStream.time_base units or if there is no stream specified then in AV_TIME_BASE units.
	flags	Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE and AVSEEK_FLAG_ANY. The protocol may silently ignore AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will fail if used and not supported.

Returns:: >= 0 on success

See also:: AVInputFormat::read_seek

Definition at line 819 of file aviobuf.c.

Referenced by asf_read_seek(), and flv_read_seek().

int64_t avio_size ( AVIOContext * s )

Get the filesize.

Returns:: filesize or AVERROR

Definition at line 254 of file aviobuf.c.

Referenced by ape_read_header(), av_seek(), avi_read_header(), dv_frame_offset(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), event_loop(), ff_ape_parse_tag(), ff_gen_search(), ff_id3v1_read(), ff_sauce_read(), ff_voc_get_packet(), ffio_limit(), ffm_read_header(), find_and_decode_index(), flv_read_packet(), gxf_write_material_data_section(), modplug_read_header(), mov_read_default(), mov_read_header(), mp3_read_header(), ogg_get_length(), opt_output_file(), print_report(), r3d_read_header(), read_header(), read_mfra(), read_packet(), rm_read_index(), seek_frame_byte(), show_format(), thp_read_header(), update_stream_timings(), and yop_read_seek().

int64_t avio_skip	(	AVIOContext *	s,
		int64_t	offset
	)

Skip given number of bytes forward.

Returns:: new position or AVERROR.

Definition at line 249 of file aviobuf.c.

Referenced by aea_read_header(), aiff_read_header(), amf_get_string(), amf_parse_object(), ape_read_header(), asf_build_simple_index(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), asfrtp_parse_packet(), au_read_header(), avi_load_index(), avi_read_header(), avi_read_nikon(), avi_sync(), avi_write_ix(), avi_write_trailer(), avs_read_header(), avs_read_packet(), bfi_read_header(), cdata_read_header(), cdxl_read_packet(), decode_frame(), dfa_read_header(), dfa_read_packet(), dxa_read_header(), ea_read_packet(), ebml_parse_elem(), ff_asf_parse_packet(), ff_id3v2_parse(), ff_mov_read_chan(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_voc_get_packet(), flac_read_header(), flic_read_packet(), flv_read_header(), flv_read_packet(), flv_write_header(), fourxm_read_header(), fourxm_read_packet(), get_aiff_header(), get_codec_data(), get_dts(), get_meta(), get_packet_header(), get_tag(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_read_index(), gxf_track_tags(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), lmlm4_read_packet(), lxf_read_header(), matroska_read_header(), mmf_read_header(), mov_read_chan2(), mov_read_default(), mov_read_dref(), mov_read_mvhd(), mov_read_strf(), mov_read_wave(), mov_read_wide(), mov_write_header(), mp3_parse_vbr_tags(), mpc8_handle_chunk(), mpc8_read_header(), mpegps_psm_parse(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_header(), mxf_read_index_entry_array(), mxf_read_material_package(), mxf_read_packet_old(), mxf_read_partition_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), nc_read_packet(), nsv_read_chunk(), nut_read_packet(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), parse_chunks(), parse_media_type(), parse_videoinfoheader2(), pmp_header(), pmp_packet(), process_audio_header_eacs(), process_ea_header(), process_ipmovie_chunk(), process_video_header_cmv(), process_video_header_mdec(), process_video_header_vp6(), qcp_read_header(), qcp_read_packet(), qt_rtp_parse_packet(), r3d_read_packet(), r3d_read_red1(), r3d_read_reos(), rdt_load_mdpr(), read_gab2_sub(), read_header(), read_kuki_chunk(), read_packet(), read_part_of_packet(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_header(), rm_read_index(), roq_read_packet(), rpl_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), smjpeg_read_header(), sol_read_header(), sox_read_header(), spdif_read_packet(), swf_read_header(), swf_read_packet(), sync(), tmv_read_packet(), tta_read_header(), txd_read_packet(), vc1t_read_header(), vid_read_header(), voc_read_header(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_block_header(), wv_read_header(), xa_read_header(), xmv_read_header(), xwma_read_header(), yop_read_header(), and yop_read_packet().

static av_always_inline int64_t avio_tell ( AVIOContext * s ) [static]

ftell() equivalent for AVIOContext.

Returns:: position or AVERROR.

Definition at line 229 of file avio.h.

Referenced by adjust_write_index(), adx_read_packet(), aiff_read_header(), aiff_read_packet(), aiff_write_header(), aiff_write_trailer(), amf_parse_object(), amr_read_packet(), ape_read_header(), asf_build_simple_index(), asf_read_header(), asf_read_stream_properties(), asf_write_header1(), asf_write_trailer(), asfrtp_parse_packet(), av_demuxer_open(), av_get_packet(), avformat_find_stream_info(), avformat_open_input(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_nikon(), avi_sync(), avi_write_counters(), avi_write_header(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avs_read_audio_packet(), caf_write_header(), caf_write_trailer(), cdxl_read_packet(), decode_frame(), decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), dv_read_header(), dv_read_packet(), dv_read_timecode(), dxa_read_header(), dxa_read_packet(), ebml_level_end(), ebml_parse_elem(), ebml_read_binary(), ebml_read_master(), ebml_read_num(), end_ebml_master(), end_header(), event_loop(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_id3v1_read(), ff_id3v2_finish(), ff_id3v2_parse(), ff_id3v2_read(), ff_id3v2_start(), ff_mov_read_stsd_entries(), ff_mov_write_packet(), ff_raw_read_partial_packet(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_store_parser_state(), ff_voc_get_packet(), ff_wms_parse_sdp_a_line(), ffio_limit(), ffm_is_avail_data(), ffm_read_data(), ffm_read_header(), ffm_read_packet(), ffm_write_header(), film_read_packet(), find_and_decode_index(), find_startcode(), finish_chunk_noindex(), finish_file(), flac_write_trailer(), flic_read_packet(), flush_packet(), flv_read_packet(), flv_write_header(), flv_write_trailer(), fourxm_read_packet(), g723_1_read_packet(), get_attachment(), get_pcr(), get_riff(), get_tag(), gsm_read_packet(), guess_ni_flag(), gxf_read_timestamp(), gxf_resync_media(), gxf_write_eos_packet(), gxf_write_flt_packet(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_packet(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_trailer(), gxf_write_umf_media_description(), gxf_write_umf_packet(), gxf_write_umf_track_description(), handle_packet(), handle_packets(), iff_read_header(), ipmovie_read_header(), iss_read_header(), iss_read_packet(), jacosub_read_header(), klv_read_packet(), matroska_execute_seekhead(), matroska_parse_cluster(), matroska_parse_cluster_incremental(), matroska_parse_seekhead_entry(), matroska_read_header(), matroska_read_packet(), matroska_resync(), microdvd_read_header(), microdvd_read_packet(), mkv_start_seekhead(), mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_block(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_tag(), mkv_write_tracks(), mkv_write_trailer(), mov_flush_fragment(), mov_read_chapters(), mov_read_default(), mov_read_dref(), mov_read_header(), mov_read_moof(), mov_read_packet(), mov_read_timecode_track(), mov_write_3gp_udta_tag(), mov_write_audio_tag(), mov_write_avcc_tag(), mov_write_chan_tag(), mov_write_chpl_tag(), mov_write_dinf_tag(), mov_write_dvc1_tag(), mov_write_esds_tag(), mov_write_ftyp_tag(), mov_write_hdlr_tag(), mov_write_header(), mov_write_ilst_tag(), mov_write_iods_tag(), mov_write_isml_manifest(), mov_write_mdat_tag(), mov_write_mdia_tag(), mov_write_meta_tag(), mov_write_mfra_tag(), mov_write_minf_tag(), mov_write_moof_tag(), mov_write_moov_tag(), mov_write_ms_tag(), mov_write_mvex_tag(), mov_write_rtp_tag(), mov_write_stbl_tag(), mov_write_stco_tag(), mov_write_string_tag(), mov_write_stsc_tag(), mov_write_stsd_tag(), mov_write_stss_tag(), mov_write_stsz_tag(), mov_write_subtitle_tag(), mov_write_tapt_tag(), mov_write_tfhd_tag(), mov_write_tfra_tag(), mov_write_tfrf_tags(), mov_write_tfxd_tag(), mov_write_traf_tag(), mov_write_trailer(), mov_write_trak_tag(), mov_write_trun_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mov_write_wave_tag(), mov_write_wfex_tag(), mp3_read_header(), mp3_read_packet(), mp3_write_xing(), mp4_read_iods(), mp4_read_od(), mpc8_get_chunk_header(), mpc8_handle_chunk(), mpc8_read_header(), mpc8_read_packet(), mpc_read_header(), mpc_read_packet(), mpegps_read_header(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_parse_handle_essence(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet_old(), mxf_read_partition_pack(), mxf_write_d10_video_packet(), mxf_write_footer(), mxf_write_klv_fill(), mxf_write_partition(), mxf_write_random_index_pack(), nsv_parse_NSVf_header(), nsv_resync(), nut_read_header(), nut_read_packet(), nut_write_packet(), nuv_packet(), nuv_read_dts(), nuv_resync(), ogg_read_page(), ogg_read_timestamp(), ogg_reset(), ogg_save(), ogg_update_checksum(), ogg_write_page(), oma_read_header(), oma_read_seek(), parse_keyframes_index(), pmp_header(), print_report(), process_ea_header(), process_ipmovie_chunk(), put_ebml_void(), put_header(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), pva_read_timestamp(), qcp_read_packet(), qt_rtp_parse_packet(), r3d_read_header(), r3d_read_reda(), r3d_read_redv(), rdt_parse_packet(), read_apic(), read_atom(), read_braindead_odml_indx(), read_frame(), read_header(), read_kuki_chunk(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_tfra(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rm_read_packet(), rm_write_trailer(), roq_read_packet(), rso_write_trailer(), skip_reserved(), smacker_read_header(), smacker_read_packet(), smjpeg_read_packet(), smjpeg_write_trailer(), sox_write_trailer(), spdif_read_packet(), srt_read_packet(), start_ebml_master(), str_read_packet(), swf_read_packet(), swf_write_header(), swf_write_trailer(), swf_write_video(), sync(), transcode(), tta_read_header(), update_offsets(), update_size(), updatePacketSize(), updateSize(), vmd_read_packet(), vqf_read_packet(), write_chunk_header(), write_fat_sector(), write_header(), write_hint_packets(), write_root_table(), write_stream_codec_info(), write_sync(), write_trailer(), wv_read_block_header(), wv_read_header(), wv_read_seek(), xmv_process_packet_header(), xmv_read_header(), xwma_read_header(), xwma_read_packet(), and yop_read_packet().

void avio_w8	(	AVIOContext *	s,
		int	b
	)

Definition at line 144 of file aviobuf.c.

Referenced by a64_write_packet(), aiff_write_trailer(), asf_write_header1(), avi_write_header(), avi_write_info_tag(), avi_write_ix(), avi_write_packet(), avio_put_str(), avio_wb16(), avio_wb24(), avio_wb32(), avio_wl16(), avio_wl24(), avio_wl32(), caf_write_header(), decode_str(), ff_id3v2_start(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_put_v(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ffm_write_header(), flac_write_block_padding(), flush_packet(), flv_write_header(), flv_write_packet(), get_line(), gif_image_write_header(), gif_image_write_image(), gif_write_trailer(), gif_write_video(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_mpeg_auxiliary(), gxf_write_packet_header(), gxf_write_padding(), gxf_write_track_description(), gxf_write_umf_media_description(), gxf_write_umf_packet(), h263_handle_packet(), id3v2_put_size(), id3v2_put_ttag(), klv_encode_ber4_length(), klv_encode_ber_length(), mkv_write_ass_blocks(), mkv_write_block(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_chan_tag(), mov_write_chpl_tag(), mov_write_d263_tag(), mov_write_edts_tag(), mov_write_esds_tag(), mov_write_hdlr_tag(), mov_write_iods_tag(), mov_write_itunes_hdlr_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_svq3_tag(), mov_write_tfhd_tag(), mov_write_tfra_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tkhd_tag(), mov_write_traf_tag(), mov_write_trailer(), mov_write_trun_tag(), mov_write_video_tag(), mp3_fix_xing(), mp3_write_xing(), mxf_write_cdci_common(), mxf_write_d10_audio_packet(), mxf_write_d10_video_packet(), mxf_write_generic_sound_common(), mxf_write_index_table_segment(), mxf_write_klv_fill(), mxf_write_mpegvideo_desc(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_umid(), nut_write_header(), nut_write_packet(), ogg_write_page(), oma_write_header(), output_immediate(), output_match(), put_amf_bool(), put_amf_double(), put_avc_eos_tag(), put_descr(), put_ebml_id(), put_ebml_num(), put_ebml_size_unknown(), put_ebml_uint(), put_ebml_void(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_str(), put_str8(), put_timestamp(), put_vcd_padding_sector(), put_xiph_codecpriv(), put_xiph_size(), rm_write_video(), rv10_write_header(), smjpeg_write_header(), sox_write_header(), swf_write_header(), swf_write_video(), vc1test_write_header(), voc_write_packet(), voc_write_trailer(), write_escape_str(), write_header(), write_packet_header(), write_pad(), write_streamheader(), write_tags(), and write_trailer().

void avio_wb16	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 364 of file aviobuf.c.

Referenced by aiff_write_header(), ascii_to_wc(), avio_wb24(), caf_write_header(), daud_write_packet(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ffm_write_header(), flush_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_umf_media_description(), id3v2_put_ttag(), mkv_write_ass_blocks(), mkv_write_block(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_audio_tag(), mov_write_enda_tag(), mov_write_esds_tag(), mov_write_fiel_tag(), mov_write_gmhd_tag(), mov_write_hmhd_tag(), mov_write_iods_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_psp_udta_tag(), mov_write_rtp_tag(), mov_write_smhd_tag(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tkhd_tag(), mov_write_trkn_tag(), mov_write_uuidprof_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mxf_write_local_tag(), mxf_write_local_tag_utf16(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_uuid(), mxf_write_wav_common(), output_match(), put_amf_string(), put_padding_packet(), put_str(), put_timestamp(), rm_write_video(), rso_write_header(), rso_write_trailer(), rv10_write_header(), smjpeg_write_header(), spdif_put_16(), updateSize(), write_hint_packets(), write_packet_header(), and write_trailer().

void avio_wb24	(	AVIOContext *	s,
		unsigned int	val
	)

void avio_wb32	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 292 of file aviobuf.c.

void avio_wb64	(	AVIOContext *	s,
		uint64_t	val
	)

Definition at line 352 of file aviobuf.c.

Referenced by aiff_write_header(), caf_write_header(), caf_write_trailer(), ffm_write_header(), flush_packet(), mov_write_audio_tag(), mov_write_avid_tag(), mov_write_chpl_tag(), mov_write_edts_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_stco_tag(), mov_write_tfhd_tag(), mov_write_tfra_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tkhd_tag(), mov_write_trailer(), mov_write_vmhd_tag(), mxf_write_common_fields(), mxf_write_identification(), mxf_write_index_table_segment(), mxf_write_package(), mxf_write_partition(), mxf_write_preface(), mxf_write_random_index_pack(), mxf_write_structural_component(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_track(), put_amf_double(), put_ebml_float(), put_packet(), sox_write_header(), and sox_write_trailer().

void avio_wl16	(	AVIOContext *	s,
		unsigned int	val
	)

void avio_wl24	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 370 of file aviobuf.c.

Referenced by vc1test_write_header(), vc1test_write_trailer(), and voc_write_packet().

void avio_wl32	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 284 of file aviobuf.c.

Referenced by aiff_write_header(), asf_write_header1(), asf_write_index(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_info_tag(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avio_wl64(), caf_write_header(), ffio_wfourcc(), ffm_write_header(), finish_chunk_noindex(), gxf_write_flt_packet(), gxf_write_timecode_auxiliary(), gxf_write_umf_material_description(), gxf_write_umf_media_audio(), gxf_write_umf_media_description(), gxf_write_umf_media_mpeg(), gxf_write_umf_media_timecode(), gxf_write_umf_payload(), ivf_write_header(), ivf_write_packet(), matroska_read_header(), mov_write_audio_tag(), mov_write_ms_tag(), mov_write_subtitle_tag(), mov_write_tref_tag(), mov_write_video_tag(), mov_write_wave_tag(), mxf_write_d10_audio_packet(), nut_write_packet(), ogg_write_page(), oma_write_header(), put_chunk(), put_packet(), put_payload_header(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), rv10_write_header(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), swf_write_header(), swf_write_trailer(), vc1test_write_header(), vc1test_write_packet(), voc_write_packet(), write_chunk_header(), write_fat(), write_header(), write_index(), write_root_table(), write_stream_codec(), write_stream_codec_info(), write_stream_data(), write_streamheader(), write_table0_header_envents(), write_table0_header_legacy_attrib(), write_table0_header_time(), write_tag(), and write_trailer().

void avio_wl64	(	AVIOContext *	s,
		uint64_t	val
	)

void avio_write	(	AVIOContext *	s,
		const unsigned char *	buf,
		int	size
	)

Definition at line 165 of file aviobuf.c.

Referenced by a64_write_header(), a64_write_packet(), adts_write_packet(), aiff_write_packet(), asf_write_header1(), asfrtp_parse_packet(), avi_write_packet(), avio_close_dyn_buf(), avio_printf(), avio_put_str(), caf_write_header(), caf_write_packet(), caf_write_trailer(), copy_tag(), crc_write_trailer(), daud_write_packet(), dump_attachment(), dv_write_packet(), ff_avc_parse_nal_units(), ff_flac_write_header(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_mov_write_packet(), ff_put_guid(), ff_raw_write_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ffm_write_header(), flac_write_block_comment(), flac_write_packet(), flac_write_trailer(), flush_packet(), flv_write_header(), flv_write_packet(), framecrc_write_packet(), get_video_private_data(), gif_image_write_header(), gif_image_write_image(), gxf_write_material_data_section(), gxf_write_mpeg_auxiliary(), gxf_write_packet(), gxf_write_track_description(), gxf_write_umf_media_description(), h263_handle_packet(), http_send_data(), id3v2_put_ttag(), ivf_write_header(), ivf_write_packet(), jacosub_write_header(), latm_parse_packet(), latm_write_packet(), main(), matroska_read_header(), md5_finish(), microdvd_write_header(), mkv_flush_dynbuf(), mkv_write_ass_blocks(), mkv_write_block(), mkv_write_codecprivate(), mov_flush_fragment(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_chpl_tag(), mov_write_dvc1_tag(), mov_write_esds_tag(), mov_write_extradata_tag(), mov_write_glbl_tag(), mov_write_hdlr_tag(), mov_write_isml_manifest(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_trailer(), mov_write_udta_sdp(), mov_write_udta_tag(), mov_write_video_tag(), mp2_write_trailer(), mpegts_insert_null_packet(), mpegts_insert_pcr_only(), mpegts_prefix_m2ts_header(), mpegts_write_pes(), mpjpeg_write_header(), mpjpeg_write_packet(), mxf_write_cdci_common(), mxf_write_common_fields(), mxf_write_d10_video_packet(), mxf_write_essence_container_refs(), mxf_write_generic_desc(), mxf_write_index_table_segment(), mxf_write_klv_fill(), mxf_write_metadata_key(), mxf_write_multi_descriptor(), mxf_write_packet(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_random_index_pack(), mxf_write_system_item(), mxf_write_track(), mxf_write_umid(), mxf_write_uuid(), nut_write_header(), nut_write_packet(), ogg_write_page(), output_immediate(), put_amf_string(), put_ebml_binary(), put_frame(), put_packet(), put_str(), put_str16(), put_swf_matrix(), put_swf_rect(), put_xiph_codecpriv(), rm_write_audio(), rm_write_video(), roq_write_header(), rso_write_packet(), rtsp_cmd_describe(), rv10_write_header(), section_write_packet(), smjpeg_write_header(), smjpeg_write_packet(), sox_write_header(), sox_write_packet(), spdif_write_packet(), svq3_parse_packet(), swf_write_header(), swf_write_video(), vc1test_write_header(), vc1test_write_packet(), voc_write_header(), voc_write_packet(), vp8_handle_packet(), write_chapter(), write_globalinfo(), write_header(), write_hint_packets(), write_mainheader(), write_packet(), write_root_table(), write_streamheader(), write_streaminfo(), write_table0_header_legacy_attrib(), write_trailer(), and xiph_handle_packet().

int url_feof ( AVIOContext * s )

feof() equivalent for AVIOContext.

Returns:: non zero if and only if end of file

Definition at line 273 of file aviobuf.c.

Referenced by amr_read_packet(), ape_read_packet(), asf_build_simple_index(), asf_read_header(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_sync(), avio_read(), bfi_read_packet(), cin_read_frame_header(), daud_packet(), dv_read_header(), dxa_read_header(), dxa_read_packet(), ebml_read_num(), ff_asf_get_packet(), ff_asf_parse_packet(), ffio_read_partial(), ffm_resync(), find_any_startcode(), find_next_start_code(), flac_read_header(), flv_read_packet(), fourxm_read_packet(), get_codec_data(), get_line(), get_swf_tag(), get_tag(), gxf_packet(), hls_read_packet(), idcin_read_packet(), iff_read_header(), ipmovie_read_header(), jacosub_read_header(), matroska_resync(), mmf_read_packet(), mov_read_default(), mov_read_dref(), mov_read_packet(), mpc8_read_header(), mpc8_read_packet(), mpegps_read_pes_header(), mpegts_resync(), msnwc_tcp_read_header(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet_old(), mxf_read_sync(), mxg_read_packet(), nc_read_packet(), nsv_parse_NSVf_header(), nsv_read_chunk(), nsv_resync(), nut_read_packet(), nuv_packet(), nuv_read_dts(), nuv_resync(), ogg_read_page(), parse_chunks(), parse_legacy_attrib(), parse_playlist(), pmp_packet(), process_audio_header_elements(), process_ipmovie_chunk(), qcp_read_packet(), read_braindead_odml_indx(), read_header(), read_line(), read_packet(), read_thread(), rm_read_header(), rm_read_packet(), roq_read_packet(), smacker_read_packet(), sol_read_packet(), sox_read_packet(), spdif_read_packet(), srt_read_packet(), str_read_packet(), sync(), tmv_read_packet(), txd_read_packet(), vc1t_read_packet(), vid_read_packet(), wc3_read_header(), wc3_read_packet(), wtvfile_read_packet(), and wv_read_packet().


Data Structures
struct	AVIOInterruptCB
	Callback for checking whether to abort blocking functions. More...
struct	AVIOContext
	Bytestream IO Context. More...
Defines
#define	AVIO_SEEKABLE_NORMAL 0x0001
	Seeking works like for a local file.
#define	AVSEEK_SIZE 0x10000
	Passing this as the "whence" parameter to a seek function causes it to return the filesize without seeking anywhere.
#define	AVSEEK_FORCE 0x20000
	Oring this flag as into the "whence" parameter to a seek function causes it to seek by any means (like reopening and linear reading) or other normally unreasonble means that can be extreemly slow.
#define	AVIO_FLAG_NONBLOCK 8
	Use non-blocking mode.
#define	AVIO_FLAG_DIRECT 0x8000
	Use direct mode.
URL open modes
The flags argument to avio_open must be one of the following constants, optionally ORed with other flags.
#define	AVIO_FLAG_READ 1
	read-only
#define	AVIO_FLAG_WRITE 2
	write-only
#define	AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ\|AVIO_FLAG_WRITE)
	read-write pseudo flag
Functions
int	avio_check (const char *url, int flags)
	Return AVIO_FLAG_* access flags corresponding to the access permissions of the resource in url, or a negative value corresponding to an AVERROR code in case of failure.
AVIOContext *	avio_alloc_context (unsigned char buffer, int buffer_size, int write_flag, void opaque, int(read_packet)(void opaque, uint8_t buf, int buf_size), int(write_packet)(void opaque, uint8_t buf, int buf_size), int64_t(seek)(void opaque, int64_t offset, int whence))
	Allocate and initialize an AVIOContext for buffered I/O.
void	avio_w8 (AVIOContext *s, int b)
void	avio_write (AVIOContext s, const unsigned char buf, int size)
void	avio_wl64 (AVIOContext *s, uint64_t val)
void	avio_wb64 (AVIOContext *s, uint64_t val)
void	avio_wl32 (AVIOContext *s, unsigned int val)
void	avio_wb32 (AVIOContext *s, unsigned int val)
void	avio_wl24 (AVIOContext *s, unsigned int val)
void	avio_wb24 (AVIOContext *s, unsigned int val)
void	avio_wl16 (AVIOContext *s, unsigned int val)
void	avio_wb16 (AVIOContext *s, unsigned int val)
int	avio_put_str (AVIOContext s, const char str)
	Write a NULL-terminated string.
int	avio_put_str16le (AVIOContext s, const char str)
	Convert an UTF-8 string to UTF-16LE and write it.
int64_t	avio_seek (AVIOContext *s, int64_t offset, int whence)
	fseek() equivalent for AVIOContext.
int64_t	avio_skip (AVIOContext *s, int64_t offset)
	Skip given number of bytes forward.
static av_always_inline int64_t	avio_tell (AVIOContext *s)
	ftell() equivalent for AVIOContext.
int64_t	avio_size (AVIOContext *s)
	Get the filesize.
int	url_feof (AVIOContext *s)
	feof() equivalent for AVIOContext.
int	avio_printf (AVIOContext s, const char fmt,...) av_printf_format(2
int void	avio_flush (AVIOContext *s)
int	avio_read (AVIOContext s, unsigned char buf, int size)
	Read size bytes from AVIOContext into buf.
int	avio_get_str (AVIOContext pb, int maxlen, char buf, int buflen)
	Read a string from pb into buf.
int	avio_get_str16le (AVIOContext pb, int maxlen, char buf, int buflen)
	Read a UTF-16 string from pb and convert it to UTF-8.
int	avio_get_str16be (AVIOContext pb, int maxlen, char buf, int buflen)
int	avio_open (AVIOContext *s, const char url, int flags)
	Create and initialize a AVIOContext for accessing the resource indicated by url.
int	avio_open2 (AVIOContext *s, const char url, int flags, const AVIOInterruptCB int_cb, AVDictionary *options)
	Create and initialize a AVIOContext for accessing the resource indicated by url.
int	avio_close (AVIOContext *s)
	Close the resource accessed by the AVIOContext s and free it.
int	avio_open_dyn_buf (AVIOContext **s)
	Open a write only memory stream.
int	avio_close_dyn_buf (AVIOContext s, uint8_t *pbuffer)
	Return the written size and a pointer to the buffer.
const char *	avio_enum_protocols (void **opaque, int output)
	Iterate through names of available protocols.
int	avio_pause (AVIOContext *h, int pause)
	Pause and resume playing - only meaningful if using a network streaming protocol (e.g.
int64_t	avio_seek_time (AVIOContext *h, int stream_index, int64_t timestamp, int flags)
	Seek to a given timestamp relative to some component stream.
Functions for reading from AVIOContext
Note: return 0 if EOF, so you cannot use it if EOF handling is necessary
int	avio_r8 (AVIOContext *s)
unsigned int	avio_rl16 (AVIOContext *s)
unsigned int	avio_rl24 (AVIOContext *s)
unsigned int	avio_rl32 (AVIOContext *s)
uint64_t	avio_rl64 (AVIOContext *s)
unsigned int	avio_rb16 (AVIOContext *s)
unsigned int	avio_rb24 (AVIOContext *s)
unsigned int	avio_rb32 (AVIOContext *s)
uint64_t	avio_rb64 (AVIOContext *s)