#include "libavutil/bprint.h"
#include "libavutil/crc.h"
#include "libavutil/dict.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/avassert.h"
#include "avformat.h"
#include "avio.h"
#include "avio_internal.h"
#include "internal.h"
#include "url.h"
#include <stdarg.h>

Data Structures
struct	DynBuffer

Macros
#define	IO_BUFFER_SIZE 32768

#define	SHORT_SEEK_THRESHOLD 32768
	Do seeks within this distance ahead of the current buffer by skipping data instead of calling the protocol seek function, for seekable protocols. More...

#define	OFFSET(x) offsetof(AVIOContext,x)

#define	E AV_OPT_FLAG_ENCODING_PARAM

#define	D AV_OPT_FLAG_DECODING_PARAM

#define	PUT_STR16(type, big_endian)

#define	GET_STR16(type, read)

Functions
static void *	ff_avio_child_next (void obj, void prev)

static const AVClass *	child_class_iterate (void **iter)

static void	fill_buffer (AVIOContext *s)

static int	url_resetbuf (AVIOContext *s, int flags)

int	ffio_init_context (AVIOContext s, 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))

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. More...

void	avio_context_free (AVIOContext **ps)
	Free the supplied IO context and everything associated with it. More...

static void	writeout (AVIOContext s, const uint8_t data, int len)

static void	flush_buffer (AVIOContext *s)

void	avio_w8 (AVIOContext *s, int b)

void	ffio_fill (AVIOContext *s, int b, int count)

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

void	avio_flush (AVIOContext *s)
	Force flushing of buffered data. More...

int64_t	avio_seek (AVIOContext *s, int64_t offset, int whence)
	fseek() equivalent for AVIOContext. More...

int64_t	avio_skip (AVIOContext *s, int64_t offset)
	Skip given number of bytes forward. More...

int64_t	avio_size (AVIOContext *s)
	Get the filesize. More...

int	avio_feof (AVIOContext *s)
	Similar to feof() but also returns nonzero on read errors. More...

void	avio_wl32 (AVIOContext *s, unsigned int val)

void	avio_wb32 (AVIOContext *s, unsigned int val)

int	avio_put_str (AVIOContext s, const char str)
	Write a NULL-terminated string. More...

static int	put_str16 (AVIOContext s, const char str, const int be)

void	avio_wl64 (AVIOContext *s, uint64_t val)

void	avio_wb64 (AVIOContext *s, uint64_t val)

void	avio_wl16 (AVIOContext *s, unsigned int val)

void	avio_wb16 (AVIOContext *s, unsigned int val)

void	avio_wl24 (AVIOContext *s, unsigned int val)

void	avio_wb24 (AVIOContext *s, unsigned int val)

void	avio_write_marker (AVIOContext *s, int64_t time, enum AVIODataMarkerType type)
	Mark the written bytestream as a specific type. More...

static int	read_packet_wrapper (AVIOContext s, uint8_t buf, int size)

unsigned long	ff_crc04C11DB7_update (unsigned long checksum, const uint8_t *buf, unsigned int len)

unsigned long	ff_crcEDB88320_update (unsigned long checksum, const uint8_t *buf, unsigned int len)

unsigned long	ff_crcA001_update (unsigned long checksum, const uint8_t *buf, unsigned int len)

unsigned long	ffio_get_checksum (AVIOContext *s)

void	ffio_init_checksum (AVIOContext s, unsigned long(update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), unsigned long checksum)

int	avio_r8 (AVIOContext *s)

int	avio_read (AVIOContext s, unsigned char buf, int size)
	Read size bytes from AVIOContext into buf. More...

int	ffio_read_size (AVIOContext s, unsigned char buf, int size)
	Read size bytes from AVIOContext into buf. More...

int	ffio_read_indirect (AVIOContext s, unsigned char buf, int size, const unsigned char **data)
	Read size bytes from AVIOContext, returning a pointer. More...

int	avio_read_partial (AVIOContext s, unsigned char buf, int size)
	Read size bytes from AVIOContext into buf. More...

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)

int	ff_get_line (AVIOContext s, char buf, int maxlen)
	Read a whole line of text from AVIOContext. More...

int	ff_get_chomp_line (AVIOContext s, char buf, int maxlen)
	Same as ff_get_line but strip the white-space characters in the text tail. More...

int64_t	ff_read_line_to_bprint (AVIOContext s, AVBPrint bp)
	Read a whole line of text from AVIOContext to an AVBPrint buffer. More...

int64_t	ff_read_line_to_bprint_overwrite (AVIOContext s, AVBPrint bp)
	Read a whole line of text from AVIOContext to an AVBPrint buffer overwriting its contents. More...

int	avio_get_str (AVIOContext s, int maxlen, char buf, int buflen)
	Read a string from pb into buf. More...

uint64_t	avio_rb64 (AVIOContext *s)

uint64_t	ffio_read_varlen (AVIOContext *bc)

int	ffio_fdopen (AVIOContext *s, URLContext h)
	Create and initialize a AVIOContext for accessing the resource referenced by the URLContext h. More...

URLContext *	ffio_geturlcontext (AVIOContext *s)
	Return the URLContext associated with the AVIOContext. More...

static void	update_checksum (AVIOContext *s)

int	ffio_ensure_seekback (AVIOContext *s, int64_t buf_size)
	Ensures that the requested seekback buffer size will be available. More...

int	ffio_set_buf_size (AVIOContext *s, int buf_size)

int	ffio_realloc_buf (AVIOContext *s, int buf_size)
	Reallocate a given buffer for AVIOContext. More...

int	ffio_rewind_with_probe_data (AVIOContext s, unsigned char *bufp, int buf_size)
	Rewind the AVIOContext using the specified buffer containing the first buf_size bytes of the file. More...

int	avio_open (AVIOContext *s, const char filename, int flags)
	Create and initialize a AVIOContext for accessing the resource indicated by url. More...

int	ffio_open_whitelist (AVIOContext *s, const char filename, int flags, const AVIOInterruptCB int_cb, AVDictionary options, const char whitelist, const char *blacklist)

int	avio_open2 (AVIOContext *s, const char filename, int flags, const AVIOInterruptCB int_cb, AVDictionary *options)
	Create and initialize a AVIOContext for accessing the resource indicated by url. More...

int	avio_close (AVIOContext *s)
	Close the resource accessed by the AVIOContext s and free it. More...

int	avio_closep (AVIOContext **s)
	Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL. More...

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

void	avio_print_string_array (AVIOContext s, const char strings[])
	Write a NULL terminated array of strings to the context. More...

int	avio_pause (AVIOContext *s, int pause)
	Pause and resume playing - only meaningful if using a network streaming protocol (e.g. More...

int64_t	avio_seek_time (AVIOContext *s, int stream_index, int64_t timestamp, int flags)
	Seek to a given timestamp relative to some component stream. More...

int	avio_read_to_bprint (AVIOContext h, AVBPrint pb, size_t max_size)
	Read contents of h into print buffer, up to max_size bytes, or up to EOF. More...

int	avio_accept (AVIOContext s, AVIOContext *c)
	Accept and allocate a client context on a server context. More...

int	avio_handshake (AVIOContext *c)
	Perform one step of the protocol handshake to accept a new client. More...

static int	dyn_buf_write (void opaque, uint8_t buf, int buf_size)

static int	dyn_packet_buf_write (void opaque, uint8_t buf, int buf_size)

static int64_t	dyn_buf_seek (void *opaque, int64_t offset, int whence)

static int	url_open_dyn_buf_internal (AVIOContext **s, int max_packet_size)

int	avio_open_dyn_buf (AVIOContext **s)
	Open a write only memory stream. More...

int	ffio_open_dyn_packet_buf (AVIOContext **s, int max_packet_size)
	Open a write only packetized memory stream with a maximum packet size of 'max_packet_size'. More...

int	avio_get_dyn_buf (AVIOContext s, uint8_t *pbuffer)
	Return the written size and a pointer to the buffer. More...

void	ffio_reset_dyn_buf (AVIOContext *s)
	Reset a dynamic buffer. More...

int	avio_close_dyn_buf (AVIOContext s, uint8_t *pbuffer)
	Return the written size and a pointer to the buffer. More...

void	ffio_free_dyn_buf (AVIOContext **s)
	Free a dynamic buffer. More...

static int	null_buf_write (void opaque, uint8_t buf, int buf_size)

int	ffio_open_null_buf (AVIOContext **s)
	Open a write-only fake memory stream. More...

int	ffio_close_null_buf (AVIOContext *s)
	Close a null buffer. More...

Variables
static const AVOption	ff_avio_options []

const AVClass	ff_avio_class

Macro Definition Documentation

◆ IO_BUFFER_SIZE

#define IO_BUFFER_SIZE 32768

Definition at line 36 of file aviobuf.c.

◆ SHORT_SEEK_THRESHOLD

#define SHORT_SEEK_THRESHOLD 32768

Do seeks within this distance ahead of the current buffer by skipping data instead of calling the protocol seek function, for seekable protocols.

Definition at line 43 of file aviobuf.c.

◆ OFFSET

#define OFFSET ( x ) offsetof(AVIOContext,x)

Definition at line 65 of file aviobuf.c.

◆ E

#define E AV_OPT_FLAG_ENCODING_PARAM

Definition at line 66 of file aviobuf.c.

◆ D

#define D AV_OPT_FLAG_DECODING_PARAM

Definition at line 67 of file aviobuf.c.

◆ PUT_STR16

#define PUT_STR16	(	type,
		big_endian
	)

Value:

int avio_put_str16 ## type(AVIOContext *s, const char *str)  \
{                                                            \
return put_str16(s, str, big_endian);                        \
}

Definition at line 432 of file aviobuf.c.

◆ GET_STR16

#define GET_STR16	(	type,
		read
	)

Value:

    int avio_get_str16 ##type(AVIOContext *pb, int maxlen, char *buf, int buflen)\
{\
    char* q = buf;\
    int ret = 0;\
    if (buflen <= 0) \
        return AVERROR(EINVAL); \
    while (ret + 1 < maxlen) {\
        uint8_t tmp;\
        uint32_t ch;\
        GET_UTF16(ch, (ret += 2) <= maxlen ? read(pb) : 0, break;)\
        if (!ch)\
            break;\
        PUT_UTF8(ch, tmp, if (q - buf < buflen - 1) *q++ = tmp;)\
    }\
    *q = 0;\
    return ret;\
}\

Definition at line 878 of file aviobuf.c.

Function Documentation

◆ ff_avio_child_next()

static void* ff_avio_child_next	(	void *	obj,
		void *	prev
	)

static

Definition at line 45 of file aviobuf.c.

◆ child_class_iterate()

static const AVClass* child_class_iterate ( void ** iter )

static

Definition at line 58 of file aviobuf.c.

◆ fill_buffer()

static void fill_buffer ( AVIOContext * s )

static

Definition at line 535 of file aviobuf.c.

Referenced by avio_feof(), avio_r8(), avio_read(), avio_read_partial(), and avio_seek().

◆ url_resetbuf()

static int url_resetbuf	(	AVIOContext *	s,
		int	flags
	)

static

Definition at line 1080 of file aviobuf.c.

Referenced by ffio_init_context(), and ffio_set_buf_size().

◆ ffio_init_context()

int ffio_init_context	(	AVIOContext *	s,
		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
	)

◆ avio_alloc_context()

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 avio_context_free().

Parameters

buffer	Memory block for input/output operations via AVIOContext. The buffer must be allocated with av_malloc() and friends. It may be freed and replaced with a new buffer by libavformat. AVIOContext.buffer holds the buffer currently in use, which must be later freed with av_free().
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. For stream protocols, must never return 0 but rather a proper AVERROR code.
write_packet	A function for writing the buffer contents, may be NULL. The function may not change the input buffers content.
seek	A function for seeking to specified byte position, may be NULL.

Returns: Allocated AVIOContext or NULL on failure.

Definition at line 138 of file aviobuf.c.

Referenced by ffio_fdopen(), hds_write_header(), init_fps(), ism_write_header(), LLVMFuzzerTestOneInput(), load_sb_block(), main(), open_null_ctx(), rdt_parse_packet(), read_gab2_sub(), swf_read_header(), url_open_dyn_buf_internal(), and wtvfile_open_sector().

◆ avio_context_free()

void avio_context_free ( AVIOContext ** s )

Free the supplied IO context and everything associated with it.

Parameters

s	Double pointer to the IO context. This function will write NULL into s.

Definition at line 155 of file aviobuf.c.

Referenced by avio_close(), avio_close_dyn_buf(), close_null_ctxp(), ffio_close_null_buf(), ffio_free_dyn_buf(), finish(), hds_free(), ism_free(), LLVMFuzzerTestOneInput(), main(), rdt_parse_packet(), read_gab2_sub(), and wtvfile_close().

◆ writeout()

static void writeout	(	AVIOContext *	s,
		const uint8_t *	data,
		int	len
	)

static

Definition at line 160 of file aviobuf.c.

Referenced by avio_write(), and flush_buffer().

◆ flush_buffer()

static void flush_buffer ( AVIOContext * s )

static

Definition at line 187 of file aviobuf.c.

Referenced by avio_flush(), avio_seek(), avio_w8(), avio_write(), and ffio_fill().

◆ avio_w8()

void avio_w8	(	AVIOContext *	s,
		int	b
	)

Definition at line 203 of file aviobuf.c.

Referenced by aiff_write_trailer(), amv_end_tag(), amv_write_trailer(), asf_write_header1(), avi_write_ix(), avi_write_packet(), avi_write_packet_internal(), avio_put_str(), avio_wb16(), avio_wb24(), avio_wb32(), avio_wl16(), avio_wl24(), avio_wl32(), caf_write_header(), decode_str(), describe_filter_link(), ff_end_tag(), ff_id3v2_start(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_isom_write_vpcc(), ff_mov_cenc_avc_parse_nal_units(), ff_mov_write_packet(), ff_put_bmp_header(), ff_put_wav_header(), ff_riff_write_info_tag(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_rtcp_feedback(), ff_vorbiscomment_write(), flac_write_block_comment(), flac_write_block_padding(), flac_write_picture(), flush(), flush_packet(), flv_write_codec_header(), flv_write_header(), flv_write_packet(), flv_write_trailer(), get_line(), gif_write_packet(), gif_write_trailer(), gxf_write_dv_auxiliary(), 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_timecode_auxiliary(), gxf_write_track_description(), gxf_write_umf_media_description(), gxf_write_umf_packet(), h261_handle_packet(), h263_handle_packet(), hvcc_write(), ico_write_packet(), ico_write_trailer(), id3v2_put_priv(), id3v2_put_size(), id3v2_put_ttag(), klv_encode_ber4_length(), klv_encode_ber9_length(), klv_encode_ber_length(), microdvd_write_header(), microdvd_write_packet(), mkv_write_block(), mkv_write_codecprivate(), mkv_write_vtt_blocks(), mov_cenc_write_saio_tag(), mov_cenc_write_saiz_tag(), mov_cenc_write_schi_tag(), mov_create_chapter_track(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_chan_tag(), mov_write_chpl_tag(), mov_write_colr_tag(), mov_write_ctts_tag(), mov_write_d263_tag(), mov_write_dfla_tag(), mov_write_dops_tag(), mov_write_dvcc_dvvc_tag(), mov_write_edts_tag(), mov_write_esds_tag(), mov_write_hdlr_tag(), mov_write_int8_metadata(), mov_write_iods_tag(), mov_write_itunes_hdlr_tag(), mov_write_loci_tag(), mov_write_mdhd_tag(), mov_write_mdta_hdlr_tag(), mov_write_mvhd_tag(), mov_write_prft_tag(), mov_write_sdtp_tag(), mov_write_sidx_tag(), mov_write_st3d_tag(), mov_write_tcmi_tag(), mov_write_tfdt_tag(), mov_write_tfhd_tag(), mov_write_tfra_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tkhd_tag(), mov_write_tmcd_tag(), mov_write_traf_tag(), mov_write_trun_tag(), mov_write_video_tag(), mov_write_vpcc_tag(), mp3_write_xing(), mxf_write_avc_subdesc(), mxf_write_cdci_common(), mxf_write_d10_audio_packet(), mxf_write_generic_sound_common(), mxf_write_index_table_segment(), mxf_write_mpegvideo_desc(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_umid(), nut_write_header(), nut_write_packet(), ogg_write_vorbiscomment(), oma_write_header(), output_immediate(), output_match(), print_csv_escaped_str(), put_amf_bool(), put_amf_byte(), put_amf_double(), put_amf_dword_array(), put_avc_eos_tag(), put_descr(), put_ebml_id(), put_ebml_num(), put_ebml_sint(), put_ebml_size_unknown(), put_ebml_uint(), put_flac_codecpriv(), put_id3v2_tags(), put_meta(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_str(), put_str8(), put_timestamp(), put_v(), put_vcd_padding_sector(), put_xiph_codecpriv(), put_xiph_size(), read_file(), rm_write_audio(), rm_write_video(), rtcp_send_sr(), rv10_write_header(), smjpeg_write_header(), swf_write_header(), swf_write_video(), ttml_write_packet(), vc1test_write_header(), voc_write_packet(), voc_write_trailer(), write_abst(), write_ctoc(), write_escape_str(), write_header(), write_metadata(), write_odml_master(), write_packet_header(), write_streamheader(), write_table_entries_attrib(), write_tags(), and write_trailer().

◆ ffio_fill()

void ffio_fill	(	AVIOContext *	s,
		int	b,
		int	count
	)

Definition at line 211 of file aviobuf.c.

Referenced by amv_write_alist(), amv_write_vlist(), ff_ape_write_tag(), ff_id3v2_finish(), film_init(), flac_write_block_padding(), ircam_write_header(), mov_write_tfrf_tag(), mov_write_trailer(), mp3_write_xing(), mxf_write_klv_fill(), put_ebml_size_unknown(), put_ebml_void(), put_videoinfoheader2(), put_xiph_size(), sox_write_header(), and spdif_write_packet().

◆ avio_write()

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

Definition at line 225 of file aviobuf.c.

Referenced by a64_write_header(), ac3_handle_packet(), adts_write_packet(), aiff_write_header(), aiff_write_packet(), amv_write_alist(), amv_write_header(), amv_write_packet_internal(), apng_write_chunk(), append_single_file(), asf_write_header1(), asf_write_markers(), asfrtp_parse_packet(), ast_write_packet(), av1_filter_obus(), avi_write_packet_internal(), avio_close_dyn_buf(), avio_print_string_array(), avio_printf(), avio_put_str(), caf_write_header(), caf_write_packet(), caf_write_trailer(), chunk_end(), codec2_write_header(), copy_moof(), copy_tag(), crc_write_trailer(), dash_write_packet(), daud_write_packet(), decode_packet(), do_encrypt(), dump_attachment(), dv_handle_packet(), dv_write_packet(), end_ebml_master_crc32(), end_ebml_master_crc32_tentatively(), ff_ape_write_tag(), ff_avc_parse_nal_units(), ff_flac_write_header(), ff_hevc_annexb2mp4(), ff_id3v2_write_apic(), ff_isom_write_av1c(), ff_isom_write_avcc(), ff_isom_write_hvcc(), ff_mov_cenc_avc_write_nal_units(), ff_mov_write_packet(), ff_put_bmp_header(), ff_put_guid(), ff_put_wav_header(), ff_raw_write_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_vorbiscomment_write(), film_write_packet(), fits_write_packet(), flac_write_audio_packet(), flac_write_picture(), flac_write_trailer(), flush(), flush_dynbuf(), flush_packet(), flv_write_codec_header(), flv_write_header(), flv_write_packet(), framecrc_write_packet(), get_video_private_data(), gif_write_packet(), gxf_write_material_data_section(), gxf_write_mpeg_auxiliary(), gxf_write_packet(), gxf_write_track_description(), gxf_write_umf_media_description(), h261_handle_packet(), h263_handle_packet(), hds_write(), hls_init_file_resend(), hls_write_packet(), hls_write_trailer(), hvcc_write(), ico_write_packet(), id3v2_put_priv(), id3v2_put_ttag(), ilbc_write_header(), init_file(), ivf_write_header(), ivf_write_packet(), jacosub_write_header(), jpeg_parse_packet(), latm_parse_packet(), latm_write_packet(), main(), microdvd_write_header(), microdvd_write_packet(), mkv_write_block(), mkv_write_codecprivate(), mkv_write_native_codecprivate(), mov_cenc_write_encrypted(), mov_cenc_write_saiz_tag(), mov_cenc_write_schi_tag(), mov_cenc_write_senc_tag(), mov_flush_fragment(), mov_flush_fragment_interleaving(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_chpl_tag(), mov_write_colr_tag(), mov_write_covr(), mov_write_dfla_tag(), mov_write_dops_tag(), mov_write_dvc1_tag(), mov_write_eac3_tag(), mov_write_esds_tag(), mov_write_extradata_tag(), mov_write_glbl_tag(), mov_write_hdlr_tag(), mov_write_isml_manifest(), mov_write_loci_tag(), mov_write_mdta_keys_tag(), mov_write_mfra_tag(), mov_write_raw_metadata_tag(), mov_write_source_reference_tag(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tcmi_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tmcd_tag(), mov_write_track_metadata(), mov_write_track_udta_tag(), mov_write_udta_sdp(), mov_write_udta_tag(), mov_write_video_tag(), mp3_update_xing(), mp3_write_trailer(), mp3_write_xing(), mpa_robust_parse_packet(), mpjpeg_write_packet(), mxf_write_avc_subdesc(), mxf_write_cdci_common(), mxf_write_common_fields(), 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_opatom_body_partition(), mxf_write_opatom_packet(), mxf_write_packet(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_random_index_pack(), mxf_write_system_item(), mxf_write_tagged_value(), mxf_write_track(), mxf_write_umid(), mxf_write_uuid(), nut_write_header(), nut_write_packet(), ogg_write_page(), output_immediate(), print_file(), print_report(), process_client(), put_amf_string(), put_ebml_binary(), put_frame(), put_meta(), put_packet(), put_str(), put_str16(), put_swf_matrix(), put_swf_rect(), put_videoinfoheader2(), put_wv_codecpriv(), put_xiph_codecpriv(), read_file(), reflush_dynbuf(), rm_write_audio(), rm_write_video(), roq_write_header(), rtcp_send_sr(), rv10_write_header(), shift_data(), smjpeg_write_header(), smjpeg_write_packet(), sox_write_header(), spdif_write_packet(), srt_write_packet(), sup_write_packet(), svq3_parse_packet(), swf_write_header(), swf_write_video(), tta_queue_flush(), tta_write_header(), tta_write_trailer(), ttml_write_packet(), vc1test_write_header(), vc1test_write_packet(), vc2hq_handle_frame_fragment(), voc_write_header(), voc_write_packet(), vp8_handle_packet(), vp9_handle_packet(), webp_write_packet(), webvtt_write_packet(), write_chapter(), write_ctoc(), write_frame(), write_globalinfo(), write_header(), write_hint_packets(), write_image_header(), write_keyword_value(), write_mainheader(), write_packet(), write_packet_pipe(), write_root_table(), write_sm_data(), write_stream_codec_info(), write_streamheader(), write_streaminfo(), write_table0_header_legacy_attrib(), write_table_entries_attrib(), write_trailer(), wv_write_packet(), xiph_handle_packet(), and yuv4_write_packet().

◆ avio_flush()

void avio_flush ( AVIOContext * s )

Force flushing of buffered data.

For write streams, force the buffered data to be immediately written to the output, without to wait to fill the internal buffer.

For read streams, discard all currently buffered data, and advance the reported file position to that of the underlying stream. This does not read new data, and does not perform any seeks.

Definition at line 245 of file aviobuf.c.

Referenced by av_write_trailer(), avio_close(), avio_close_dyn_buf(), avio_get_dyn_buf(), avio_write(), avio_write_marker(), close_file(), copy_moof(), dash_init(), dash_write_packet(), dashenc_io_close(), dump_attachment(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_rtcp_feedback(), ffio_close_null_buf(), flush_dynbuf(), flush_if_needed(), hds_flush(), hds_write_header(), hls_mux_init(), hls_write_packet(), hlsenc_io_close(), ism_flush(), ism_write_header(), main(), mov_write_header(), print_report(), process_client(), rtcp_send_sr(), segment_end(), shift_data(), write_fragment(), write_header(), write_manifest(), and write_packet().

◆ avio_seek()

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

fseek() equivalent for AVIOContext.

Returns: new position or AVERROR.

Definition at line 253 of file aviobuf.c.

Referenced by aa_read_header(), aa_read_seek(), aax_read_header(), aax_read_packet(), adts_aac_read_header(), adts_aac_resync(), adx_read_header(), aiff_read_header(), aiff_write_trailer(), aix_read_header(), align_position(), amv_write_trailer(), ape_read_header(), ape_read_packet(), ape_read_seek(), apng_read_header(), apng_read_packet(), apng_write_trailer(), argo_brp_read_header(), asf_build_simple_index(), asf_get_packet(), asf_read_frame_header(), asf_read_header(), asf_read_packet(), asf_read_payload(), asf_read_pts(), asf_read_seek(), asf_read_subpayload(), asf_read_timestamp(), asf_write_header1(), asf_write_trailer(), ast_write_trailer(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_seek(), avi_write_counters(), avi_write_packet(), avi_write_trailer(), avio_flush(), avio_skip(), avio_tell(), bfi_read_header(), caf_write_trailer(), check(), check_tag(), cine_read_header(), cine_read_packet(), close_file(), dat_read_header(), dhav_read_header(), dhav_read_seek(), do_encrypt(), dsf_read_header(), dss_read_header(), dss_read_metadata_date(), dss_read_metadata_string(), dss_read_seek(), dtshd_read_header(), 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_dnn_load_model_native(), ff_end_tag(), ff_get_qtpalette(), ff_id3v1_read(), ff_id3v2_finish(), ff_img_read_header(), ff_img_read_packet(), ff_pcm_read_seek(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_seek_frame_binary(), film_read_packet(), film_read_seek(), find_and_decode_index(), find_any_startcode(), find_index_range(), find_sidx(), finish_chunk_noindex(), flac_read_header(), flac_read_timestamp(), flac_seek(), flac_write_trailer(), flv_data_packet(), flv_read_header(), flv_read_packet(), flv_write_codec_header(), flv_write_packet(), flv_write_trailer(), fsb_read_header(), genh_read_header(), get_attachment(), get_duration(), get_tag(), gif_read_header(), gif_read_packet(), guess_ni_flag(), gxf_read_timestamp(), gxf_resync_media(), gxf_seek(), gxf_write_trailer(), gxf_write_umf_media_description(), hca_read_header(), hnm_read_packet(), ico_write_trailer(), id3v2_parse(), id3v2_read_internal(), idcin_read_seek(), iff_read_header(), ifv_read_header(), ifv_read_packet(), ipmovie_read_header(), ivf_write_trailer(), ivr_read_header(), load_ipmovie_packet(), lvf_read_header(), main(), mkv_check_new_extra_data(), mkv_write_seekhead(), mkv_write_trailer(), mods_read_header(), moflex_read_header(), moflex_read_packet(), moflex_read_sync(), mov_parse_auxiliary_info(), mov_parse_stsd_video(), mov_read_chapters(), mov_read_custom(), mov_read_default(), mov_read_dref(), mov_read_dvc1(), mov_read_glbl(), mov_read_header(), mov_read_meta(), mov_read_mfra(), mov_read_packet(), mov_read_rtmd_track(), mov_read_sidx(), mov_read_timecode_track(), mov_read_udta_string(), mov_switch_root(), mov_write_mdta_keys_tag(), mov_write_sidx_tag(), mov_write_stsc_tag(), mov_write_stss_tag(), mov_write_tfrf_tag(), mov_write_tfrf_tags(), mov_write_trailer(), mp3_parse_vbr_tags(), mp3_parse_vbri_tag(), mp3_read_header(), mp3_sync(), mp3_update_xing(), mpc8_handle_chunk(), mpc8_parse_seektable(), mpc8_read_header(), 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_resync(), mpjpeg_read_header(), mpjpeg_read_packet(), mpl2_read_header(), mtaf_read_header(), mtv_read_header(), musx_read_header(), mv_read_packet(), mxf_parse_handle_essence(), mxf_parse_klv(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_random_index_pack(), mxf_read_seek(), mxf_seek_to_previous_partition(), mxf_update_klv_size(), mxf_write_footer(), mxf_write_partition(), ni_prepare_read(), nsv_parse_NSVf_header(), nsv_read_seek(), nut_read_header(), nuv_read_dts(), ogg_get_length(), ogg_read_page(), ogg_read_timestamp(), ogg_restore(), oma_read_seek(), open_input(), parse_fragment(), parse_keyframes_index(), parse_media_type(), parse_mp4_descr(), pp_bnk_read_packet(), process_ea_header(), put_id3v2_tags(), put_swf_end_tag(), pva_read_timestamp(), qt_rtp_parse_packet(), r3d_read_header(), r3d_seek(), rdt_load_mdpr(), read_apic(), read_dst_frame(), read_frame(), read_header(), read_id3(), read_mfra(), read_moof_duration(), read_odml_index(), read_packet(), read_seek(), read_tfra(), recover(), resync(), 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(), rv10_write_header(), sdr2_read_header(), seek_back(), seek_by_sector(), seek_data(), seek_frame_byte(), seek_frame_generic(), seq_fill_buffer(), seq_init_frame_buffers(), seq_parse_frame_data(), seq_read_packet(), set_spdif(), sga_read_header(), sga_read_packet(), shift_data(), skip_reserved(), skip_tag(), smacker_read_packet(), smacker_read_seek(), smjpeg_write_trailer(), sox_write_trailer(), str_read_header(), subviewer_read_header(), swf_write_trailer(), tak_read_header(), thp_read_header(), thp_read_packet(), tmv_read_seek(), track_header(), tta_read_header(), tta_read_seek(), ty_read_header(), update_odml_entry(), update_size(), updatePacketSize(), updateSize(), vag_read_header(), vc1test_write_trailer(), vc2hq_handle_frame_fragment(), viv_read_header(), viv_read_seek(), vmd_read_header(), vmd_read_packet(), voc_read_seek(), vpk_read_seek(), vqf_read_seek(), wc3_read_header(), wc3_read_packet(), webp_write_trailer(), write_fragments(), write_header(), write_hint_packets(), write_metadata(), write_root_table(), write_stream_codec_info(), write_trailer(), wsd_read_header(), wsvqa_read_header(), wv_read_block_header(), wv_read_header(), wv_write_trailer(), xmv_fetch_audio_packet(), xmv_fetch_new_packet(), xmv_fetch_video_packet(), yop_read_header(), yop_read_seek(), and yuv4_read_seek().

◆ avio_skip()

int64_t avio_skip	(	AVIOContext *	s,
		int64_t	offset
	)

Skip given number of bytes forward.

Returns: new position or AVERROR.

Definition at line 337 of file aviobuf.c.

Referenced by aa_read_header(), aa_read_packet(), aal_read_packet(), aax_read_header(), ace_read_header(), ads_read_header(), aea_read_header(), afc_read_header(), aiff_read_header(), aix_read_header(), aix_read_packet(), amf_get_string(), amf_parse_object(), amf_skip_tag(), ape_read_header(), apng_read_packet(), argo_brp_read_header(), asf_build_simple_index(), asf_parse_packet(), asf_read_content_desc(), asf_read_data(), 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_metadata_obj(), asf_read_multiple_payload(), asf_read_packet(), asf_read_packet_header(), asf_read_properties(), asf_read_replicated_data(), asf_read_simple_index(), asf_read_single_payload(), asf_read_stream_properties(), asf_read_subpayload(), asf_read_unknown(), asfrtp_parse_packet(), ast_read_header(), ast_read_packet(), ast_write_trailer(), avformat_open_input(), avi_read_header(), avi_read_nikon(), avi_sync(), avi_write_trailer(), avr_read_header(), avs_read_header(), avs_read_packet(), bfi_read_header(), binka_read_header(), binka_read_packet(), cdata_read_header(), cdxl_read_packet(), check_file_header(), cine_read_header(), cine_read_packet(), dat_read_packet(), dcstr_read_header(), decode_fctl_chunk(), decode_frame(), derf_read_header(), dfa_read_header(), dfa_read_packet(), dhav_read_header(), dhav_read_packet(), dsf_read_header(), dsf_read_packet(), dss_read_seek(), dss_skip_audio_header(), dtshd_read_header(), dxa_read_header(), ea_read_packet(), epaf_read_header(), ff_get_line(), ff_get_qtpalette(), ff_get_wav_header(), ff_img_read_packet(), ff_mov_read_chan(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_read_line_to_bprint(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_spdif_read_packet(), ff_voc_get_packet(), finished_reading_packet(), fits_read_packet(), flac_read_header(), flv_read_header(), flv_read_packet(), flv_set_video_codec(), flv_write_codec_header(), fourxm_read_header(), fourxm_read_packet(), frm_read_header(), fsb_read_header(), fwse_read_header(), gdv_read_header(), genh_read_header(), get_aiff_header(), get_codec_data(), get_eia608_packet(), get_meta(), get_packet_header(), get_strl(), get_tag(), gif_read_ext(), gif_read_header(), gif_read_packet(), gif_skip_subblocks(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_read_index(), gxf_track_tags(), hca_read_header(), hcom_read_header(), hnm_read_header(), hnm_read_packet(), ico_write_header(), id3v2_parse(), idcin_read_packet(), iff_read_header(), iff_read_packet(), ifv_read_packet(), ingenient_read_packet(), ipu_read_header(), ircam_read_header(), ivr_read_header(), ivr_read_packet(), lmlm4_read_packet(), lvf_read_header(), lvf_read_packet(), lxf_read_header(), mmf_read_header(), mods_read_header(), moflex_read_packet(), moflex_read_sync(), mov_metadata_loci(), mov_parse_stsd_data(), mov_parse_stsd_video(), mov_read_ares(), mov_read_av1c(), mov_read_chan(), mov_read_coll(), mov_read_covr(), mov_read_custom(), mov_read_default(), mov_read_dref(), mov_read_keys(), mov_read_moov(), mov_read_mvhd(), mov_read_rtmd_track(), mov_read_smdm(), mov_read_st3d(), mov_read_strf(), mov_read_sv3d(), mov_read_uuid(), mov_read_vpcc(), mov_read_wave(), mov_read_wide(), mov_skip_multiple_stsd(), mov_write_header(), mp3_parse_info_tag(), mp3_parse_vbri_tag(), mpc8_handle_chunk(), mpc8_read_header(), mpegps_psm_parse(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), msf_read_header(), msnwc_tcp_read_packet(), msp_read_header(), mtaf_read_header(), mtv_read_header(), mtv_read_packet(), musx_read_header(), mv_read_header(), mv_read_packet(), mxf_decrypt_triplet(), mxf_get_eia608_packet(), mxf_read_header(), mxf_read_index_entry_array(), mxf_read_packet(), mxf_read_partition_pack(), mxf_read_random_index_pack(), mxf_read_strong_ref_array(), nc_read_packet(), nist_read_header(), nsp_read_header(), nsv_read_chunk(), nut_read_packet(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), parse_chunks(), parse_dsd_diin(), parse_dsd_prop(), parse_ext(), parse_global_var(), parse_header(), parse_media_type(), parse_video_info(), parse_video_var(), parse_videoinfoheader2(), pmp_header(), pmp_packet(), pp_bnk_read_header(), process_audio_header_eacs(), process_ea_header(), process_ipmovie_chunk(), process_video_header_cmv(), process_video_header_mdec(), process_video_header_vp6(), pvf_read_header(), qcp_read_header(), qcp_read_packet(), qt_rtp_parse_packet(), r3d_read_packet(), r3d_read_red1(), r3d_read_reos(), rdt_load_mdpr(), read_chapter(), read_chunk(), read_dst_frame(), read_extradata(), read_gab2_sub(), read_header(), read_index(), read_kuki_chunk(), read_line_to_bprint_escaped(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_sm_data(), read_string(), read_table(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_header(), rm_read_index(), rm_sync(), roq_read_packet(), rpl_read_packet(), rsd_read_header(), scan_file(), sdr2_read_header(), sdr2_read_packet(), sds_read_header(), sds_read_packet(), sdx_read_header(), ser_read_header(), sga_read_header(), sga_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), simbiosis_imx_read_header(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), smush_read_header(), smush_read_packet(), sol_read_header(), sox_read_header(), svag_read_header(), svs_read_header(), swf_read_header(), swf_read_packet(), tak_read_header(), threedostr_read_header(), threedostr_read_packet(), tmv_read_packet(), tta_read_header(), txd_read_packet(), update_odml_entry(), vag_read_header(), var_read_string(), vc1t_read_header(), vid_read_header(), viv_read_header(), vivo_read_header(), vivo_read_packet(), voc_read_header(), vpk_read_header(), vpk_read_packet(), vqf_read_header(), wc3_read_header(), write_metadata(), wsd_read_header(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_block_header(), wv_read_header(), wve_read_header(), xa_read_header(), xmv_read_header(), xvag_read_header(), xwma_read_header(), yop_read_header(), and yop_read_packet().

◆ avio_size()

int64_t avio_size ( AVIOContext * s )

Get the filesize.

Returns: filesize or AVERROR

Definition at line 342 of file aviobuf.c.

Referenced by adp_read_header(), ape_read_header(), apng_read_header(), asf_read_stream_properties(), avi_read_header(), cdxl_read_header(), dhav_read_header(), dv_frame_offset(), estimate_timings(), estimate_timings_from_bit_rate(), estimate_timings_from_pts(), event_loop(), ff_ape_parse_tag(), ff_dnn_load_model_native(), ff_find_last_ts(), ff_id3v1_read(), ff_img_read_packet(), ff_sauce_read(), ff_voc_get_packet(), ffio_limit(), find_and_decode_index(), flv_read_packet(), get_duration(), gxf_write_material_data_section(), import_pem(), main(), modplug_read_header(), mov_read_default(), mov_read_header(), mov_read_mfra(), mov_read_sidx(), mp3_parse_info_tag(), mp3_read_header(), mp3_seek(), mxf_read_random_index_pack(), ogg_get_length(), open_output_file(), parse_manifest(), pmp_header(), print_report(), r3d_read_header(), read_graph(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_mfra(), read_xing_toc(), rm_read_index(), rsd_read_header(), sds_read_header(), seek_frame_byte(), show_format(), svs_read_header(), thp_read_header(), track_index(), update_init_section(), update_stream_timings(), wtvfile_open_sector(), yop_read_seek(), and yuv4_read_header().

◆ avio_feof()

int avio_feof ( AVIOContext * s )

Similar to feof() but also returns nonzero on read errors.

Returns: non zero if and only if at end of file or a read error happened when reading.

Definition at line 364 of file aviobuf.c.

Referenced by aa_read_header(), aal_read_packet(), aax_read_packet(), adp_read_packet(), adts_aac_resync(), adx_read_packet(), aix_read_packet(), amf_parse_object(), amf_skip_tag(), amr_read_packet(), ape_read_packet(), apng_read_packet(), aqt_read_header(), asf_build_simple_index(), asf_get_packet(), asf_parse_packet(), asf_read_header(), asf_read_marker(), ast_read_packet(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_nikon(), avi_sync(), avio_read(), avio_read_partial(), bfi_read_packet(), binka_read_packet(), cdxl_read_packet(), cin_read_frame_header(), cine_read_header(), dat_read_packet(), daud_packet(), dfa_read_packet(), dtshd_read_header(), dv_read_header(), dxa_read_header(), dxa_read_packet(), ea_read_packet(), ff_get_line(), ff_img_read_packet(), ff_read_line_to_bprint(), ff_read_riff_info(), ff_spdif_read_packet(), ff_text_eof(), ff_text_peek_r8(), find_any_startcode(), find_next_start_code(), flac_read_header(), flv_read_packet(), fourxm_read_packet(), fsb_read_packet(), gdv_read_packet(), genh_read_packet(), get_bprint_line(), get_chunk(), get_codec_data(), get_line(), get_swf_tag(), get_tag(), gif_read_header(), gif_read_packet(), gxf_packet(), hls_read_packet(), idcin_read_packet(), iff_read_header(), iff_read_packet(), ifv_read_packet(), ipmovie_read_header(), ivr_read_header(), ivr_read_packet(), jacosub_read_header(), lrc_read_header(), lvf_read_header(), lvf_read_packet(), lxf_sync(), microdvd_read_header(), mmf_read_packet(), mods_read_packet(), moflex_read_packet(), moflex_read_sync(), mov_metadata_hmmt(), mov_read_default(), mov_read_dref(), mov_read_glbl(), mov_read_meta(), mov_switch_root(), mpc8_read_header(), mpc8_read_packet(), mpegps_read_pes_header(), mpegts_resync(), mpl2_read_header(), mpsub_read_header(), msnwc_tcp_read_header(), mv_read_header(), mxf_read_header(), mxf_read_index_entry_array(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_sync(), mxg_read_packet(), nc_read_packet(), nist_read_header(), nsp_read_header(), 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_dsd_diin(), parse_dsd_prop(), parse_legacy_attrib(), parse_manifest(), parse_media_type(), parse_playlist(), pjs_read_header(), pmp_header(), pmp_packet(), pop(), process_audio_header_elements(), process_ipmovie_chunk(), qcp_read_packet(), read_chunk(), read_dst_frame(), read_header(), read_index(), read_info_chunk(), read_line(), read_line_to_bprint_escaped(), read_odml_index(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_table(), read_tfra(), read_thread(), redspark_read_packet(), resync(), rl2_read_header(), rm_read_header(), rm_read_index(), rm_read_packet(), rm_sync(), roq_read_packet(), rpl_read_packet(), rsd_read_header(), rsd_read_packet(), s337m_read_packet(), scan_file(), sds_read_packet(), sdx_read_header(), sga_read_header(), sga_read_packet(), should_retry(), simbiosis_imx_read_packet(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), smush_read_header(), smush_read_packet(), sol_read_packet(), stl_read_header(), str_read_packet(), subviewer1_read_header(), subviewer_read_header(), sup_read_packet(), svs_read_packet(), tak_read_header(), threedostr_read_header(), threedostr_read_packet(), tmv_read_packet(), track_header(), tta_read_header(), txd_read_packet(), ty_read_packet(), vc1t_read_packet(), vid_read_packet(), viv_read_header(), viv_read_packet(), vivo_get_packet_header(), vivo_read_packet(), vplayer_read_header(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wtvfile_read_packet(), wv_read_block_header(), wv_read_packet(), and xwma_read_header().

◆ avio_wl32()

void avio_wl32	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 375 of file aviobuf.c.

Referenced by aiff_write_header(), amv_start_tag(), amv_write_header(), amv_write_packet_internal(), asf_write_header1(), asf_write_index(), asf_write_markers(), ast_write_header(), avi_write_counters(), avi_write_header(), avi_write_idx1(), avi_write_ix(), avi_write_packet(), avi_write_packet_internal(), avi_write_trailer(), avio_wl64(), caf_write_header(), ff_ape_write_tag(), ff_end_tag(), ff_mov_cenc_write_sinf_tag(), ff_put_bmp_header(), ff_put_wav_header(), ff_riff_write_info_tag(), ff_start_tag(), ff_vorbiscomment_write(), ffio_wfourcc(), finish_chunk_noindex(), flush(), 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_dv(), gxf_write_umf_media_mpeg(), gxf_write_umf_media_timecode(), gxf_write_umf_payload(), ico_write_packet(), ico_write_trailer(), init_file(), ircam_write_header(), ivf_write_header(), ivf_write_packet(), ivf_write_trailer(), mkv_write_codecprivate(), mkv_write_native_codecprivate(), 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(), oma_write_header(), put_chunk(), put_id3v2_tags(), put_meta(), put_packet(), put_payload_header(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), put_videoinfoheader2(), rv10_write_header(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), swf_write_header(), swf_write_trailer(), tta_write_header(), tta_write_packet(), tta_write_trailer(), update_odml_entry(), vc1test_write_header(), vc1test_write_packet(), voc_write_packet(), webp_write_trailer(), write_abst(), write_chunk_header(), write_fat(), write_header(), write_index(), write_metadata_header(), write_odml_master(), write_root_table(), write_stream_codec(), write_stream_codec_info(), write_stream_data(), write_streamheader(), write_table0_header_events(), write_table0_header_legacy_attrib(), write_table0_header_time(), write_table_entries_attrib(), write_tag_int32(), write_trailer(), and wv_write_trailer().

◆ avio_wb32()

void avio_wb32	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 383 of file aviobuf.c.

◆ avio_put_str()

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

Write a NULL-terminated string.

Returns: number of bytes written.

Definition at line 391 of file aviobuf.c.

Referenced by caf_write_header(), ff_ape_write_tag(), ff_id3v2_write_apic(), ff_riff_write_info_tag(), id3v2_encode_string(), mov_write_sv3d_tag(), write_chapter(), and write_ctoc().

◆ put_str16()

static int put_str16	(	AVIOContext *	s,
		const char *	str,
		const int	be
	)

inlinestatic

Definition at line 402 of file aviobuf.c.

◆ avio_wl64()

void avio_wl64	(	AVIOContext *	s,
		uint64_t	val
	)

◆ avio_wb64()

void avio_wb64	(	AVIOContext *	s,
		uint64_t	val
	)

Definition at line 449 of file aviobuf.c.

Referenced by aiff_write_header(), apng_write_header(), ast_write_header(), ast_write_packet(), caf_write_header(), caf_write_trailer(), klv_encode_ber9_length(), mov_cenc_write_saio_tag(), 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_prft_tag(), mov_write_sidx_tag(), mov_write_stco_tag(), mov_write_tfdt_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_footer(), mxf_write_generic_sound_common(), 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_ebml_uid(), put_packet(), sox_write_header(), sox_write_trailer(), write_abst(), and write_index().

◆ avio_wl16()

void avio_wl16	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 455 of file aviobuf.c.

Referenced by amv_write_trailer(), asf_write_header1(), asf_write_index(), asf_write_markers(), avi_write_header(), avi_write_ix(), avi_write_packet(), avio_wl24(), ff_put_bmp_header(), ff_put_wav_header(), flush(), gif_write_packet(), gxf_write_umf_material_description(), gxf_write_umf_media_description(), gxf_write_umf_track_description(), ico_write_header(), ico_write_trailer(), id3v2_encode_string(), ivf_write_header(), mxf_write_d10_audio_packet(), oma_write_header(), put_chunk(), put_payload_header(), put_payload_parsing_info(), put_str16(), put_swf_end_tag(), put_swf_tag(), put_wv_codecpriv(), spdif_put_16(), swf_write_header(), swf_write_trailer(), swf_write_video(), tta_write_header(), voc_write_header(), voc_write_packet(), webp_write_trailer(), write_odml_master(), and write_root_table().

◆ avio_wb16()

void avio_wb16	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 461 of file aviobuf.c.

Referenced by aiff_write_header(), ascii_to_wc(), ast_write_header(), ast_write_trailer(), avio_wb24(), caf_write_header(), daud_write_packet(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_isom_write_vpcc(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_rtcp_feedback(), film_write_packet(), 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(), hvcc_write(), id3v2_put_priv(), id3v2_put_ttag(), mkv_write_block(), mkv_write_vtt_blocks(), mov_create_chapter_track(), mov_preroll_write_stbl_atoms(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_audio_tag(), mov_write_clli_tag(), mov_write_colr_tag(), mov_write_dmlp_tag(), mov_write_dops_tag(), mov_write_dvcc_dvvc_tag(), mov_write_enda_tag(), mov_write_enda_tag_be(), mov_write_esds_tag(), mov_write_fiel_tag(), mov_write_gmhd_tag(), mov_write_gpmd_tag(), mov_write_hmhd_tag(), mov_write_iods_tag(), mov_write_loci_tag(), mov_write_mdcv_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_psp_udta_tag(), mov_write_rtp_tag(), mov_write_sidx_tag(), mov_write_smhd_tag(), mov_write_source_reference_tag(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tcmi_tag(), mov_write_tkhd_tag(), mov_write_tmcd_tag(), mov_write_tmpo_tag(), mov_write_trkn_tag(), mov_write_uuidprof_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mp3_write_xing(), mxf_write_cdci_common(), mxf_write_local_tag(), mxf_write_mpegvideo_desc(), 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_str16(), put_timestamp(), rm_write_video(), rso_write_header(), rso_write_trailer(), rtcp_send_sr(), rv10_write_header(), smjpeg_write_header(), spdif_put_16(), store_version(), sup_write_packet(), updateSize(), write_chapter(), write_ctoc(), write_hint_packets(), write_packet_header(), and write_trailer().

◆ avio_wl24()

void avio_wl24	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 467 of file aviobuf.c.

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

◆ avio_wb24()

void avio_wb24	(	AVIOContext *	s,
		unsigned int	val
	)

Definition at line 473 of file aviobuf.c.

Referenced by codec2_write_header(), flac_write_block_comment(), flac_write_block_padding(), flac_write_picture(), flv_write_codec_header(), flv_write_header(), flv_write_packet(), gxf_write_media_preamble(), klv_encode_ber4_length(), mov_cenc_write_saio_tag(), mov_cenc_write_schi_tag(), mov_write_chan_tag(), mov_write_ctts_tag(), mov_write_dfla_tag(), mov_write_edts_tag(), mov_write_esds_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_prft_tag(), mov_write_sidx_tag(), mov_write_tfdt_tag(), mov_write_tfhd_tag(), mov_write_tfra_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tkhd_tag(), mov_write_trun_tag(), mov_write_vpcc_tag(), mp3_write_xing(), mxf_write_metadata_key(), mxf_write_umid(), put_avc_eos_tag(), put_flac_codecpriv(), put_timestamp(), shift_data(), and write_metadata().

◆ avio_write_marker()

void avio_write_marker	(	AVIOContext *	s,
		int64_t	time,
		enum AVIODataMarkerType	type
	)

Mark the written bytestream as a specific type.

Zero-length ranges are omitted from the output.

Parameters

time	the stream time the current bytestream pos corresponds to (in AV_TIME_BASE units), or AV_NOPTS_VALUE if unknown or not applicable
type	the kind of data written starting at the current pos

Definition at line 479 of file aviobuf.c.

Referenced by av_write_trailer(), avformat_write_header(), flush_if_needed(), flush_packet(), flv_write_packet(), mkv_end_cluster(), mkv_write_packet(), mov_flush_fragment(), mov_write_trailer(), mxf_write_partition(), ogg_write_page(), and put_vcd_padding_sector().

◆ read_packet_wrapper()

static int read_packet_wrapper	(	AVIOContext *	s,
		uint8_t *	buf,
		int	size
	)

static

Definition at line 515 of file aviobuf.c.

Referenced by avio_read(), avio_read_partial(), and fill_buffer().

◆ ff_crc04C11DB7_update()

unsigned long ff_crc04C11DB7_update	(	unsigned long	checksum,
		const uint8_t *	buf,
		unsigned int	len
	)

Definition at line 586 of file aviobuf.c.

Referenced by get_packetheader(), nut_write_packet(), ogg_read_page(), and put_packet().

◆ ff_crcEDB88320_update()

unsigned long ff_crcEDB88320_update	(	unsigned long	checksum,
		const uint8_t *	buf,
		unsigned int	len
	)

Definition at line 592 of file aviobuf.c.

Referenced by tta_read_header(), and tta_write_header().

◆ ff_crcA001_update()

unsigned long ff_crcA001_update	(	unsigned long	checksum,
		const uint8_t *	buf,
		unsigned int	len
	)

Definition at line 598 of file aviobuf.c.

Referenced by mp3_parse_vbr_tags().

◆ ffio_get_checksum()

unsigned long ffio_get_checksum ( AVIOContext * s )

Definition at line 604 of file aviobuf.c.

Referenced by decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), find_and_decode_index(), get_packetheader(), mp3_parse_info_tag(), nut_write_packet(), ogg_read_page(), put_packet(), tak_read_header(), tta_read_header(), and tta_write_trailer().

◆ ffio_init_checksum()

void ffio_init_checksum	(	AVIOContext *	s,
		unsigned long()(unsigned long c, const uint8_t p, unsigned int len)	update_checksum,
		unsigned long	checksum
	)

Definition at line 612 of file aviobuf.c.

Referenced by get_packetheader(), mp3_parse_vbr_tags(), nut_write_packet(), ogg_read_page(), put_packet(), tak_read_header(), tta_read_header(), and tta_write_header().

◆ avio_r8()

int avio_r8 ( AVIOContext * s )

Definition at line 624 of file aviobuf.c.

Referenced by aax_read_header(), adts_aac_resync(), aea_read_header(), aix_read_header(), aix_read_packet(), amf_parse_object(), amf_skip_tag(), amr_read_packet(), ape_read_header(), ape_tag_read_field(), asf_get_packet(), asf_parse_packet(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_packet_header(), asf_read_payload(), asf_read_picture(), asf_read_stream_properties(), asf_read_subpayload(), 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(), binka_read_header(), bmv_read_packet(), cdata_read_header(), cin_read_file_header(), cin_read_frame_header(), decode_fctl_chunk(), decode_str(), dss_723_1_read_packet(), dss_read_header(), dv_read_header(), dxa_read_header(), ebml_read_num(), efi_read(), ff_get_line(), ff_get_qtpalette(), ff_mp4_parse_es_descr(), ff_mp4_read_dec_config_descr(), ff_mp4_read_descr(), ff_mp4_read_descr_len(), ff_read_line_to_bprint(), ff_sauce_read(), ff_spdif_read_packet(), ff_text_init_avio(), ff_text_r8(), ff_voc_get_packet(), ffio_read_varlen(), find_any_startcode(), find_next_start_code(), flv_data_packet(), flv_read_header(), flv_read_metabody(), flv_read_packet(), flv_set_video_codec(), frm_read_header(), fsb_read_header(), fsb_read_packet(), g723_1_read_packet(), gdv_read_header(), genh_read_packet(), get_attachment(), get_codec_data(), get_eia608_packet(), get_line(), get_pts(), get_size(), get_str(), get_str8(), get_token(), gif_read_ext(), gif_read_header(), gif_read_packet(), gif_skip_subblocks(), guess_ni_flag(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), hcom_read_header(), iff_read_header(), ipmovie_read_header(), ivr_read_header(), ivr_read_packet(), klv_decode_ber_length(), load_sb_block(), lvf_read_header(), lxf_sync(), mmf_read_header(), moflex_read_packet(), moflex_read_sync(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_parse_stsd_video(), mov_read_chpl(), mov_read_coll(), mov_read_colr(), mov_read_ctts(), mov_read_dfla(), mov_read_dops(), mov_read_dref(), mov_read_dvc1(), mov_read_dvcc_dvvc(), mov_read_elst(), mov_read_hdlr(), mov_read_mac_string(), mov_read_mdhd(), mov_read_mvhd(), mov_read_pssh(), mov_read_rtmd_track(), mov_read_saio(), mov_read_saiz(), mov_read_sbgp(), mov_read_sdtp(), mov_read_senc(), mov_read_sidx(), mov_read_smdm(), mov_read_st3d(), mov_read_stco(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_sv3d(), mov_read_tenc(), mov_read_tfdt(), mov_read_tfhd(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mov_read_udta_string(), mov_read_vpcc(), mp3_parse_info_tag(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_resync(), msnwc_tcp_read_header(), mtaf_read_header(), mtv_read_header(), mxf_get_eia608_packet(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_pixel_layout(), mxf_read_sequence(), 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_dsd_prop(), parse_ext(), parse_keyframes_index(), parse_MP4IODescrTag(), parse_MP4SLDescrTag(), parse_packet_header(), pmp_packet(), pop(), 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_arbitrary(), read_chunk(), read_comment(), read_frame(), read_geobtag(), read_header(), read_line(), read_line_to_bprint_escaped(), read_moof_duration(), read_odml_index(), read_part_of_packet(), read_tfra(), read_trun_duration(), read_ttag(), read_uint8(), read_uslt(), read_var_byte(), read_xing_toc(), resync(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_metadata(), rm_sync(), rsd_read_header(), rsd_read_packet(), s337m_read_packet(), sds_read_header(), sds_read_packet(), sdx_read_header(), seq_parse_frame_data(), simbiosis_imx_read_packet(), skip_reserved(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), sol_read_header(), swf_read_header(), swf_read_packet(), tak_read_header(), tmv_read_header(), track_header(), track_index(), vc1t_read_header(), vc1t_read_packet(), vid_read_packet(), viv_read_header(), vivo_get_packet_header(), wsd_read_header(), wv_read_block_header(), yop_read_header(), yuv4_read_header(), and yuv4_read_packet().

◆ avio_read()

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 633 of file aviobuf.c.

Referenced by aa_read_packet(), aax_read_header(), aax_read_packet(), add_metadata(), amf_get_string(), amr_read_header(), amr_read_packet(), ape_read_header(), ape_read_packet(), ape_tag_read_field(), append_packet_chunked(), append_single_file(), argo_brp_read_header(), argo_brp_read_packet(), asf_parse_packet(), asf_read_multiple_payload(), asf_read_single_payload(), asf_read_stream_properties(), asf_read_value(), av_probe_input_buffer2(), avi_read_header(), avi_read_nikon(), avi_read_tag(), avio_read_to_bprint(), avs_read_packet(), avs_read_video_packet(), binka_read_packet(), bmv_read_packet(), cdxl_read_packet(), check(), check_file_header(), check_tag(), cin_read_packet(), copy_moof(), copy_tag(), decode_frame(), decode_main_header(), dhav_read_header(), dsf_read_packet(), dss_723_1_read_packet(), dss_read_metadata_date(), dss_read_metadata_string(), dss_read_seek(), dss_sp_read_packet(), dtshd_read_header(), dv_read_header(), dv_read_packet(), dv_read_timecode(), dxa_read_packet(), ff_ape_parse_tag(), ff_dnn_load_model_native(), ff_flac_parse_picture(), ff_get_extradata(), ff_get_guid(), ff_id3v1_read(), ff_img_read_header(), ff_img_read_packet(), ff_read_riff_info(), ff_sauce_read(), ff_spdif_read_packet(), ffio_read_indirect(), ffio_read_size(), film_read_header(), find_index_range(), fits_read_packet(), flac_read_header(), flv_queue_extradata(), fourxm_read_header(), fourxm_read_packet(), fsb_read_header(), g723_1_read_packet(), genh_read_header(), get_chunk(), get_meta(), get_metadata(), get_packet_header(), get_pts(), get_riff(), get_str(), get_tag(), gif_read_ext(), gif_read_packet(), hca_read_header(), hcom_read_header(), hls_encryption_start(), id3v2_parse(), id3v2_read_internal(), idcin_read_packet(), iff_read_header(), ilbc_read_header(), ilbc_read_packet(), import_pem(), ipmovie_read_header(), is_image(), klv_read_packet(), load_ipmovie_packet(), lxf_read_header(), lxf_read_packet(), lxf_sync(), main(), modplug_read_header(), mov_read_adrm(), mov_read_dfla(), mov_read_dops(), mov_read_free(), mov_read_keys(), mov_read_tenc(), mov_read_wave(), mov_try_read_block(), mp3_parse_info_tag(), mpc8_parse_seektable(), mpc_read_packet(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mxf_decrypt_triplet(), mxf_read_cryptographic_context(), mxf_read_essence_container_data(), mxf_read_generic_descriptor(), mxf_read_indirect_value(), mxf_read_local_tags(), mxf_read_package(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_pulldown_component(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_strong_ref_array(), mxf_read_track(), mxg_update_cache(), next_byte(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), oma_read_header(), oma_read_seek(), open_input(), open_output_file(), parse_chunks(), parse_fragment(), parse_MP4DecConfigDescrTag(), pp_bnk_read_header(), pp_bnk_read_packet(), process_client(), process_ipmovie_chunk(), qcp_read_header(), r3d_read_red1(), read_apic(), read_chapter(), read_extradata(), read_file(), read_frame(), read_from_url(), read_geobtag(), read_graph(), read_header(), read_header_gme(), read_header_openmpt(), read_header_vs(), read_kuki_chunk(), read_packet(), read_part_of_packet(), read_priv(), read_sb_block(), read_sm_data(), read_string(), read_table(), read_uslt(), read_vblock(), read_whole_file(), readfull(), rm_assemble_video_frame(), rm_read_audio_stream_info(), roq_read_header(), roq_read_packet(), rsd_read_header(), s337m_read_packet(), sdr2_read_packet(), sds_read_packet(), seq_fill_buffer(), seq_read_packet(), set_spdif(), sga_read_packet(), siff_read_packet(), smjpeg_read_header(), sox_read_header(), str_read_header(), str_read_packet(), swf_read_packet(), tak_read_header(), thp_read_header(), track_header(), tta_read_header(), ty_read_header(), vid_read_packet(), viv_read_header(), vivo_read_header(), vmd_read_header(), vmd_read_packet(), vpk_read_packet(), vqf_read_header(), vqf_read_packet(), wc3_read_header(), wc3_read_packet(), write_header(), 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(), and yop_read_packet().

◆ ffio_read_size()

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

Read size bytes from AVIOContext into buf.

Check that exactly size bytes have been read.

Returns: number of bytes read or AVERROR

Definition at line 682 of file aviobuf.c.

Referenced by apng_read_header(), append_extradata(), codec2_read_header(), mov_parse_uuid_spherical(), mov_read_atom_into_extradata(), mov_read_chpl(), mov_read_cmov(), mov_read_colr(), mov_read_custom(), mov_read_ddts(), mov_read_dref(), mov_read_ftyp(), mov_read_hdlr(), mov_read_pssh(), mov_read_sample_encryption_info(), mov_read_stsz(), mov_read_udta_string(), mov_read_uuid(), read_header(), smacker_read_header(), and smacker_read_packet().

◆ ffio_read_indirect()

int ffio_read_indirect	(	AVIOContext *	s,
		unsigned char *	buf,
		int	size,
		const unsigned char **	data
	)

Read size bytes from AVIOContext, returning a pointer.

Note that the data pointed at by the returned pointer is only valid until the next call that references the same IO context.

Parameters

s	IO context
buf	pointer to buffer into which to assemble the requested data if it is not available in contiguous addresses in the underlying buffer
size	number of bytes requested
data	address at which to store pointer: this will be a a direct pointer into the underlying buffer if the requested number of bytes are available at contiguous addresses, otherwise will be a copy of buf

Returns: number of bytes read or AVERROR

Definition at line 692 of file aviobuf.c.

Referenced by read_packet().

◆ avio_read_partial()

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

Read size bytes from AVIOContext into buf.

Unlike avio_read(), this is allowed to read fewer bytes than requested. The missing bytes can be read in the next call. This always tries to read at least 1 byte. Useful to reduce latency in certain cases.

Returns: number of bytes read or AVERROR

Definition at line 704 of file aviobuf.c.

Referenced by ff_raw_read_partial_packet(), and get_packet_size().

◆ avio_rl16()

unsigned int avio_rl16 ( AVIOContext * s )

Definition at line 734 of file aviobuf.c.

Referenced by ape_read_header(), asf_build_simple_index(), asf_get_packet(), asf_read_content_desc(), asf_read_ext_content(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_frame_header(), asf_read_generic_value(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_metadata_obj(), asf_read_multiple_payload(), asf_read_stream_properties(), asf_read_subpayload(), avi_read_header(), avi_read_nikon(), avi_sync(), avio_rl24(), avio_rl32(), avs_read_header(), avs_read_packet(), binka_read_header(), binka_read_packet(), cin_read_file_header(), cin_read_frame_header(), cine_read_header(), decode_str(), dfa_read_header(), ff_get_bmp_header(), ff_get_wav_header(), ff_sauce_read(), ff_spdif_read_packet(), ff_text_r8(), ff_voc_get_packet(), frm_read_header(), fsb_read_header(), gdv_read_header(), gdv_read_packet(), get_asf_string(), get_fourcc(), get_swf_tag(), get_tag(), get_value(), gif_read_ext(), gif_read_header(), guess_ni_flag(), hnm_read_header(), hnm_read_packet(), ingenient_read_packet(), ipu_read_header(), lvf_read_header(), mpc8_get_chunk_header(), msnwc_tcp_read_packet(), msp_read_header(), mtv_read_header(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), parse_ext(), parse_header(), parse_video_info(), parse_waveformatex(), pmp_header(), process_ea_header(), process_video_header_cmv(), process_video_header_mdec(), qcp_read_header(), qt_rtp_parse_packet(), read16(), read_chunk(), read_frame(), read_gab2_sub(), read_header(), read_odml_index(), read_packet(), read_uint16(), rl2_read_header(), s337m_read_packet(), scan_file(), seq_init_frame_buffers(), seq_parse_frame_data(), siff_parse_soun(), siff_parse_vbv1(), siff_read_packet(), simbiosis_imx_read_header(), smush_read_header(), sol_read_header(), swf_read_header(), swf_read_packet(), tmv_read_header(), track_header(), tta_read_header(), vid_read_header(), vid_read_packet(), voc_read_header(), wv_read_block_header(), xa_read_header(), xmv_read_header(), and yop_read_header().

◆ avio_rl24()

unsigned int avio_rl24 ( AVIOContext * s )

Definition at line 742 of file aviobuf.c.

Referenced by bmv_read_packet(), ff_voc_get_packet(), hnm_read_packet(), mpc_read_header(), mtv_read_header(), read_comment(), read_header(), s337m_read_packet(), sds_read_header(), smacker_read_header(), tak_read_header(), vc1t_read_header(), vc1t_read_packet(), and wv_read_block_header().

◆ avio_rl32()

unsigned int avio_rl32 ( AVIOContext * s )

Definition at line 750 of file aviobuf.c.

◆ avio_rl64()

uint64_t avio_rl64 ( AVIOContext * s )

◆ avio_rb16()

unsigned int avio_rb16 ( AVIOContext * s )

Definition at line 766 of file aviobuf.c.

Referenced by aal_read_packet(), aax_read_header(), aax_read_packet(), adx_read_header(), afc_read_header(), aix_read_header(), aix_read_packet(), amf_get_string(), amf_parse_object(), amf_skip_tag(), ast_read_header(), avio_rb24(), avio_rb32(), avr_read_header(), cdata_read_header(), daud_packet(), decode_fctl_chunk(), decode_str(), dtshd_read_header(), dxa_read_header(), ff_get_qtpalette(), ff_get_wav_header(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_rm_parse_packet(), ff_rm_read_mdpr_codecdata(), ff_text_r8(), flv_data_packet(), get_aiff_header(), get_num(), gxf_header(), hca_read_header(), hcom_read_header(), id3v2_parse(), iff_read_header(), ivr_read_header(), ivr_read_packet(), lmlm4_read_packet(), moflex_read_sync(), mov_metadata_loci(), mov_metadata_track_or_disc_number(), mov_parse_stsd_audio(), mov_parse_stsd_video(), mov_read_ares(), mov_read_chapters(), mov_read_clli(), mov_read_coll(), mov_read_colr(), mov_read_dec3(), mov_read_dref(), mov_read_dvcc_dvvc(), mov_read_enda(), mov_read_fiel(), mov_read_mdcv(), mov_read_mdhd(), mov_read_mvhd(), mov_read_sample_encryption_info(), mov_read_sidx(), mov_read_smdm(), mov_read_tkhd(), mov_read_udta_string(), mov_read_vpcc(), mp3_parse_info_tag(), mp3_parse_vbri_tag(), mpegps_psm_parse(), mpegps_read_pes_header(), mv_read_header(), mxf_get_eia608_packet(), mxf_read_generic_descriptor(), mxf_read_local_tags(), mxf_read_timecode_component(), parse_dsd_prop(), parse_MP4IODescrTag(), parse_MP4ODescrTag(), parse_MP4SLDescrTag(), qt_rtp_parse_packet(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), rdt_load_mdpr(), read16(), read_header(), read_packet(), read_part_of_packet(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rm_read_metadata(), rm_read_multi(), rm_sync(), rso_read_header(), sds_read_packet(), sga_read_header(), sga_read_packet(), smjpeg_read_header(), sup_read_packet(), and xvag_read_header().

◆ avio_rb24()

unsigned int avio_rb24 ( AVIOContext * s )

Definition at line 774 of file aviobuf.c.

Referenced by aal_read_packet(), asfrtp_parse_packet(), avr_read_header(), codec2_read_header(), dtshd_read_header(), ff_mp4_read_dec_config_descr(), flv_read_packet(), id3v2_parse(), moflex_read_sync(), mov_read_chpl(), mov_read_ctts(), mov_read_dac3(), mov_read_dec3(), mov_read_dfla(), mov_read_elst(), mov_read_hdlr(), mov_read_mdhd(), mov_read_mvhd(), mov_read_pssh(), mov_read_saio(), mov_read_saiz(), mov_read_sbgp(), mov_read_sdtp(), mov_read_senc(), mov_read_sidx(), mov_read_stco(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tenc(), mov_read_tfdt(), mov_read_tfhd(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mov_read_udta_string(), mp3_parse_info_tag(), mpegps_read_packet(), mpl2_read_header(), read_moof_duration(), read_part_of_packet(), read_tfra(), read_trun_duration(), smush_read_header(), subviewer_read_header(), and tak_read_header().

◆ avio_rb32()

unsigned int avio_rb32 ( AVIOContext * s )

Definition at line 781 of file aviobuf.c.

Referenced by aa_read_header(), aa_read_packet(), aal_read_packet(), aax_read_header(), ace_read_header(), afc_read_header(), aiff_read_header(), aix_read_header(), aix_read_packet(), amf_parse_object(), amf_skip_tag(), apng_read_header(), apng_read_packet(), ast_read_header(), ast_read_packet(), avi_sync(), avio_rb64(), copy_tag(), dat_read_packet(), decode_fctl_chunk(), decode_frame_header(), dtshd_read_header(), dv_read_header(), dxa_read_header(), ea_read_packet(), epaf_read_header(), ff_get_qtpalette(), ff_get_wav_header(), ff_mov_read_chan(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_read_dec_config_descr(), ff_rm_read_mdpr_codecdata(), find_sidx(), flv_read_header(), flv_read_packet(), fsb_read_header(), get_aiff_header(), get_packetheader(), get_tag(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), hcom_read_header(), id3v2_parse(), iff_read_header(), iff_read_packet(), ircam_read_header(), ivr_read_header(), ivr_read_packet(), lmlm4_read_packet(), mmf_read_header(), mov_metadata_hmmt(), mov_metadata_loci(), mov_parse_stsd_audio(), mov_parse_stsd_video(), mov_read_ares(), mov_read_chap(), mov_read_chpl(), mov_read_cmov(), mov_read_ctts(), mov_read_custom(), mov_read_default(), mov_read_dmlp(), mov_read_dref(), mov_read_elst(), mov_read_ftyp(), mov_read_glbl(), mov_read_hdlr(), mov_read_keys(), mov_read_mdcv(), mov_read_mdhd(), mov_read_mfra(), mov_read_mvhd(), mov_read_pasp(), mov_read_pssh(), mov_read_saio(), mov_read_saiz(), mov_read_sample_encryption_info(), mov_read_sbgp(), mov_read_schm(), mov_read_senc(), mov_read_sidx(), mov_read_smdm(), mov_read_stco(), mov_read_stps(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_sv3d(), mov_read_tfdt(), mov_read_tfhd(), mov_read_timecode_track(), mov_read_tkhd(), mov_read_tmcd(), mov_read_trex(), mov_read_trun(), mov_read_udta_string(), mov_read_wide(), mp3_parse_info_tag(), mp3_parse_vbr_tags(), mp3_parse_vbri_tag(), mpegps_psm_parse(), msf_read_header(), musx_read_header(), mv_read_header(), mxf_get_eia608_packet(), mxf_read_essence_container_data(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_index_table_segment(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_random_index_pack(), mxf_read_source_clip(), mxf_read_strong_ref_array(), mxf_read_track(), nsp_read_header(), nuv_resync(), ogg_read_page(), parse_dsd_diin(), parse_dsd_prop(), parse_fragment(), 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(), read32(), read_atom(), read_chapter(), read_desc_chunk(), read_dst_frame(), read_header(), read_index(), read_info_chunk(), read_mfra(), read_moof_duration(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_table(), read_tfra(), read_trun_duration(), redspark_read_header(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rm_read_multi(), rm_sync(), rsd_read_header(), siff_parse_soun(), siff_parse_vbv1(), skip_tag(), smjpeg_read_header(), smjpeg_read_packet(), smush_read_header(), smush_read_packet(), sox_read_header(), sup_read_packet(), swf_read_header(), thp_read_header(), thp_read_packet(), threedostr_read_header(), threedostr_read_packet(), vag_read_header(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wsd_read_header(), wve_read_header(), and xvag_read_header().

◆ ff_get_line()

int ff_get_line	(	AVIOContext *	s,
		char *	buf,
		int	maxlen
	)

Read a whole line of text from AVIOContext.

Stop reading after reaching either a \n, a \0 or EOF. The returned string is always \0-terminated, and may be truncated if the buffer is too small.

Parameters

s	the read-only AVIOContext
buf	buffer to store the read line
maxlen	size of the buffer

Returns: the length of the string written in the buffer, not including the final \0

Definition at line 789 of file aviobuf.c.

Referenced by aqt_read_header(), ff_get_chomp_line(), get_line(), hls_encryption_start(), jacosub_read_header(), microdvd_read_header(), mpl2_read_header(), mpsub_read_header(), nist_read_header(), pjs_read_header(), pvf_read_header(), stl_read_header(), subviewer1_read_header(), subviewer_read_header(), and vplayer_read_header().

◆ ff_get_chomp_line()

int ff_get_chomp_line	(	AVIOContext *	s,
		char *	buf,
		int	maxlen
	)

Same as ff_get_line but strip the white-space characters in the text tail.

Parameters

s	the read-only AVIOContext
buf	buffer to store the read line
maxlen	size of the buffer

Returns: the length of the string written in the buffer

Definition at line 806 of file aviobuf.c.

Referenced by parse_playlist().

◆ ff_read_line_to_bprint()

int64_t ff_read_line_to_bprint	(	AVIOContext *	s,
		AVBPrint *	bp
	)

Read a whole line of text from AVIOContext to an AVBPrint buffer.

Stop reading after reaching a \r, a \n, a \r\n, a \0 or EOF. The line ending characters are NOT included in the buffer, but they are skipped on the input.

Parameters

s	the read-only AVIOContext
bp	the AVBPrint buffer

Returns: the length of the read line, not including the line endings, negative on error.

Definition at line 814 of file aviobuf.c.

Referenced by ff_read_line_to_bprint_overwrite().

◆ ff_read_line_to_bprint_overwrite()

int64_t ff_read_line_to_bprint_overwrite	(	AVIOContext *	s,
		AVBPrint *	bp
	)

Read a whole line of text from AVIOContext to an AVBPrint buffer overwriting its contents.

Stop reading after reaching a \r, a \n, a \r\n, a \0 or EOF. The line ending characters are NOT included in the buffer, but they are skipped on the input.

Parameters

s	the read-only AVIOContext
bp	the AVBPrint buffer

Returns: the length of the read line not including the line endings, negative on error, or if the buffer becomes truncated.

Definition at line 845 of file aviobuf.c.

Referenced by concat_read_header().

◆ avio_get_str()

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 860 of file aviobuf.c.

Referenced by aa_read_header(), ape_tag_read_field(), cine_read_header(), ff_dnn_load_model_native(), get_strl(), ivr_read_header(), mov_metadata_loci(), mov_read_chapters(), mpegps_read_header(), nsp_read_header(), read_apic(), read_info_chunk(), and var_read_string().

◆ avio_rb64()

uint64_t avio_rb64 ( AVIOContext * s )

Definition at line 902 of file aviobuf.c.

Referenced by amf_parse_object(), apng_read_header(), dtshd_read_header(), find_and_decode_index(), get_aiff_header(), iff_read_header(), ivr_read_header(), ivr_read_packet(), moflex_read_sync(), mov_parse_stsd_audio(), mov_read_chpl(), mov_read_default(), mov_read_elst(), mov_read_mdhd(), mov_read_mvhd(), mov_read_saio(), mov_read_sidx(), mov_read_stco(), mov_read_tfdt(), mov_read_tfhd(), mov_read_tkhd(), mov_read_wave(), mxf_decrypt_triplet(), mxf_read_essence_group(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_index_table_segment(), mxf_read_partition_pack(), mxf_read_random_index_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_timecode_component(), parse_dsd_diin(), parse_dsd_prop(), parse_fragment(), parse_keyframes_index(), read_desc_chunk(), read_dst_frame(), read_header(), read_moof_duration(), read_pakt_chunk(), read_tfra(), and sox_read_header().

◆ ffio_read_varlen()

uint64_t ffio_read_varlen ( AVIOContext * bc )

Definition at line 910 of file aviobuf.c.

Referenced by decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), find_and_decode_index(), get_fourcc(), get_packetheader(), get_s(), get_str(), load_sb_block(), mpc8_get_chunk_header(), mpc8_handle_chunk(), mpc8_read_header(), read_sm_data(), track_header(), track_index(), viv_read_header(), and viv_read_packet().

◆ ffio_fdopen()

int ffio_fdopen	(	AVIOContext **	s,
		URLContext *	h
	)

Create and initialize a AVIOContext for accessing the resource referenced by the URLContext h.

Note: When the URLContext h 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.

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

Definition at line 921 of file aviobuf.c.

Referenced by avio_accept(), ff_rtp_chain_mux_open(), and ffio_open_whitelist().

◆ ffio_geturlcontext()

URLContext* ffio_geturlcontext ( AVIOContext * s )

Return the URLContext associated with the AVIOContext.

Parameters

s	IO context

Returns: pointer to URLContext or NULL.

Definition at line 979 of file aviobuf.c.

Referenced by dashenc_io_close(), dashenc_io_open(), hlsenc_io_close(), hlsenc_io_open(), and open_url_keepalive().

◆ update_checksum()

static void update_checksum ( AVIOContext * s )

static

Definition at line 990 of file aviobuf.c.

Referenced by ffio_ensure_seekback(), and ffio_init_checksum().

◆ ffio_ensure_seekback()

int ffio_ensure_seekback	(	AVIOContext *	s,
		int64_t	buf_size
	)

Ensures that the requested seekback buffer size will be available.

Will ensure that when reading sequentially up to buf_size, seeking within the current pos and pos+buf_size is possible. Once the stream position moves outside this window or another ffio_ensure_seekback call requests a buffer outside this window this guarantee is lost.

Definition at line 998 of file aviobuf.c.

Referenced by apng_read_header(), apng_read_packet(), dhav_read_header(), id3v2_parse(), id3v2_read_internal(), ivr_read_header(), mov_read_wave(), mp3_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_read_header(), mpegts_resync(), mpjpeg_read_packet(), ogg_read_page(), rm_read_header(), set_spdif(), sga_read_packet(), and subviewer_read_header().

◆ ffio_set_buf_size()

int ffio_set_buf_size	(	AVIOContext *	s,
		int	buf_size
	)

Warning: must be called before any I/O

Definition at line 1033 of file aviobuf.c.

Referenced by ffio_realloc_buf(), and fill_buffer().

◆ ffio_realloc_buf()

int ffio_realloc_buf	(	AVIOContext *	s,
		int	buf_size
	)

Reallocate a given buffer for AVIOContext.

Parameters

s	the AVIOContext to realloc.
buf_size	required new buffer size.

Returns: 0 on success, a negative AVERROR on failure.

Definition at line 1049 of file aviobuf.c.

Referenced by ff_configure_buffers_for_index().

◆ ffio_rewind_with_probe_data()

int ffio_rewind_with_probe_data	(	AVIOContext *	s,
		unsigned char **	buf,
		int	buf_size
	)

Rewind the AVIOContext using the specified buffer containing the first buf_size bytes of the file.

Used after probing to avoid seeking. Joins buf and s->buffer, taking any overlap into consideration.

Note: s->buffer must overlap with buf or they can't be joined and the function fails

Parameters

s	The read-only AVIOContext to rewind
buf	The probe buffer containing the first buf_size bytes of the file
buf_size	The size of buf

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

Definition at line 1094 of file aviobuf.c.

Referenced by av_probe_input_buffer2(), and ff_img_read_header().

◆ avio_open()

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.
url	resource to access
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 1137 of file aviobuf.c.

Referenced by ff_dnn_load_model_native(), init(), main(), open_output_file(), read_file(), and read_graph().

◆ ffio_open_whitelist()

int ffio_open_whitelist	(	AVIOContext **	s,
		const char *	filename,
		int	flags,
		const AVIOInterruptCB *	int_cb,
		AVDictionary **	options,
		const char *	whitelist,
		const char *	blacklist
	)

Definition at line 1142 of file aviobuf.c.

Referenced by avio_open2(), import_pem(), io_open_default(), and parse_playlist().

◆ avio_open2()

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.
url	resource to access
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 1163 of file aviobuf.c.

Referenced by avio_open(), dash_init(), dump_attachment(), find_sidx(), get_preset_file_2(), lavfi_read_header(), main(), open_output_file(), open_url(), parse_manifest(), print_sdp(), process_client(), read_mfra(), and write_fragment().

◆ avio_close()

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().

The internal buffer is automatically flushed before closing the resource.

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

See also: avio_closep

Definition at line 1169 of file aviobuf.c.

Referenced by avformat_close_input(), avio_closep(), dash_free(), do_encrypt(), dump_attachment(), find_sidx(), import_pem(), io_close_default(), main(), parse_manifest(), parse_playlist(), process_client(), read_mfra(), and write_fragment().

◆ avio_closep()

int avio_closep ( AVIOContext ** s )

Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL.

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

The internal buffer is automatically flushed before closing the resource.

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

See also: avio_close

Definition at line 1192 of file aviobuf.c.

Referenced by avformat_open_input(), ff_dnn_load_model_native(), ff_rtp_chain_mux_open(), ff_rtsp_undo_setup(), ffio_fdopen(), ffmpeg_cleanup(), lavfi_read_header(), main(), new_output_stream(), open_output_file(), print_report(), print_sdp(), read_file(), read_graph(), sap_write_close(), and uninit().

◆ avio_printf()

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

Definition at line 1199 of file aviobuf.c.

◆ avio_print_string_array()

void avio_print_string_array	(	AVIOContext *	s,
		const char *	strings[]
	)

Write a NULL terminated array of strings to the context.

Usually you don't need to use this function directly but its macro wrapper, avio_print.

Definition at line 1218 of file aviobuf.c.

◆ avio_pause()

int avio_pause	(	AVIOContext *	h,
		int	pause
	)

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

MMS).

Parameters

h	IO context from which to call the read_pause function pointer
pause	1 for pause, 0 for resume

Definition at line 1224 of file aviobuf.c.

Referenced by av_read_pause(), and av_read_play().

◆ avio_seek_time()

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

h	IO context from which to call the seek function pointers
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 1231 of file aviobuf.c.

Referenced by asf_read_seek(), and flv_read_seek().

◆ avio_read_to_bprint()

int avio_read_to_bprint	(	AVIOContext *	h,
		struct AVBPrint *	pb,
		size_t	max_size
	)

Read contents of h into print buffer, up to max_size bytes, or up to EOF.

Returns: 0 for success (max_size bytes read or EOF reached), negative error code otherwise

Definition at line 1250 of file aviobuf.c.

Referenced by gif_read_header(), lavfi_read_header(), and parse_manifest().

◆ avio_accept()

int avio_accept	(	AVIOContext *	s,
		AVIOContext **	c
	)

Accept and allocate a client context on a server context.

Parameters

s	the server context
c	the client context, must be unallocated

Returns: >= 0 on success or a negative value corresponding to an AVERROR on failure

Definition at line 1268 of file aviobuf.c.

Referenced by main().

◆ avio_handshake()

int avio_handshake ( AVIOContext * c )

Perform one step of the protocol handshake to accept a new client.

This function must be called on a client returned by avio_accept() before using it as a read/write context. It is separate from avio_accept() because it may block. A step of the handshake is defined by places where the application may decide to change the proceedings. For example, on a protocol with a request header and a reply header, each one can constitute a step because the application may use the parameters from the request to change parameters in the reply; or each individual chunk of the request can constitute a step. If the handshake is already finished, avio_handshake() does nothing and returns 0 immediately.

Parameters

c	the client context to perform the handshake on

Returns: 0 on a complete and successful handshake > 0 if the handshake progressed, but is not complete < 0 for an AVERROR code

Definition at line 1279 of file aviobuf.c.

Referenced by process_client().

◆ dyn_buf_write()

static int dyn_buf_write	(	void *	opaque,
		uint8_t *	buf,
		int	buf_size
	)

static

Definition at line 1294 of file aviobuf.c.

Referenced by dyn_packet_buf_write(), and url_open_dyn_buf_internal().

◆ dyn_packet_buf_write()

static int dyn_packet_buf_write	(	void *	opaque,
		uint8_t *	buf,
		int	buf_size
	)

static

Definition at line 1326 of file aviobuf.c.

Referenced by url_open_dyn_buf_internal().

◆ dyn_buf_seek()

static int64_t dyn_buf_seek	(	void *	opaque,
		int64_t	offset,
		int	whence
	)

static

Definition at line 1341 of file aviobuf.c.

Referenced by url_open_dyn_buf_internal().

◆ url_open_dyn_buf_internal()

static int url_open_dyn_buf_internal	(	AVIOContext **	s,
		int	max_packet_size
	)

static

Definition at line 1357 of file aviobuf.c.

Referenced by avio_open_dyn_buf(), ffio_open_dyn_packet_buf(), and ffio_open_null_buf().

◆ avio_open_dyn_buf()

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 1379 of file aviobuf.c.

Referenced by ac3_handle_packet(), asf_write_header1(), asf_write_markers(), asfrtp_parse_packet(), choose_pix_fmts(), chunk_start(), dash_init(), decode_str(), describe_filter_link(), dv_handle_packet(), ff_ape_write_tag(), ff_avc_parse_nal_units_buf(), ff_hevc_annexb2mp4_buf(), ff_id3v2_write_apic(), ff_isom_write_av1c(), ff_isom_write_avcc(), ff_mov_add_hinted_packet(), ff_mov_write_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_rtcp_feedback(), film_init(), flush_dynbuf(), get_line(), get_video_private_data(), h261_handle_packet(), h263_handle_packet(), hls_mux_init(), hls_write_packet(), hls_write_trailer(), id3v2_put_priv(), id3v2_put_ttag(), jpeg_parse_packet(), latm_parse_packet(), mkv_assemble_cues(), mkv_check_new_extra_data(), mkv_write_codecprivate(), mov_create_chapter_track(), mov_flush_fragment_interleaving(), mov_write_mfra_tag(), mov_write_track_udta_tag(), mov_write_udta_tag(), mp3_write_xing(), mpa_robust_parse_packet(), mpegts_write_packet_internal(), nut_write_packet(), nut_write_trailer(), put_str16(), read_file(), rtp_mpegts_write_header(), rtp_mpegts_write_packet(), set_codec_str(), start_ebml_master_crc32(), svq3_parse_packet(), tta_write_header(), vc2hq_handle_frame_fragment(), vp8_handle_packet(), vp9_handle_packet(), write_chapter(), write_ctoc(), write_globalinfo(), write_headers(), write_sm_data(), write_streaminfo(), and xiph_handle_packet().

◆ ffio_open_dyn_packet_buf()

int ffio_open_dyn_packet_buf	(	AVIOContext **	s,
		int	max_packet_size
	)

Open a write only packetized memory stream with a maximum packet size of 'max_packet_size'.

The stream is stored in a memory buffer with a big-endian 4 byte header giving the packet size in bytes.

Parameters

s	new IO context
max_packet_size	maximum packet size (must be > 0)

Returns: zero if no error.

Definition at line 1384 of file aviobuf.c.

Referenced by ff_mov_add_hinted_packet(), ff_rtp_chain_mux_open(), and ff_rtsp_tcp_write_packet().

◆ avio_get_dyn_buf()

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

Return the written size and a pointer to the buffer.

The AVIOContext stream is left intact. The buffer must NOT be freed. No padding 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 1391 of file aviobuf.c.

Referenced by dash_write_packet(), end_ebml_master_crc32(), end_ebml_master_crc32_tentatively(), ff_ape_write_tag(), ff_id3v2_write_apic(), ff_isom_write_av1c(), ff_isom_write_avcc(), film_write_header(), id3v2_put_priv(), id3v2_put_ttag(), mkv_assemble_cues(), mkv_check_new_extra_data(), mkv_write_codecprivate(), mov_flush_fragment(), mov_flush_fragment_interleaving(), mov_write_mfra_tag(), mov_write_track_udta_tag(), mov_write_udta_tag(), put_packet(), tta_write_trailer(), write_chapter(), and write_ctoc().

◆ ffio_reset_dyn_buf()

void ffio_reset_dyn_buf ( AVIOContext * s )

Reset a dynamic buffer.

Resets everything, but keeps the allocated buffer for later use.

Definition at line 1413 of file aviobuf.c.

Referenced by end_ebml_master_crc32(), mkv_assemble_cues(), and put_packet().

◆ avio_close_dyn_buf()

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 AV_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 1424 of file aviobuf.c.

Referenced by asf_write_header1(), asf_write_markers(), asfrtp_parse_packet(), choose_pix_fmts(), chunk_end(), decode_str(), describe_filter_link(), ff_avc_parse_nal_units_buf(), ff_hevc_annexb2mp4_buf(), ff_mov_add_hinted_packet(), ff_rtp_check_and_send_back_rr(), ff_rtp_finalize_packet(), ff_rtp_send_rtcp_feedback(), ff_rtsp_tcp_write_packet(), flush_dynbuf(), get_line(), get_video_private_data(), hls_write_packet(), hls_write_trailer(), latm_parse_packet(), mov_create_chapter_track(), mov_flush_fragment(), mp3_write_xing(), mpegts_write_packet_internal(), nut_write_packet(), put_str16(), read_file(), rtp_mpegts_write_packet(), set_codec_str(), write_chapter(), write_globalinfo(), write_sm_data(), and write_streaminfo().

◆ ffio_free_dyn_buf()

void ffio_free_dyn_buf ( AVIOContext ** s )

Free a dynamic buffer.

Parameters

s	a pointer to an IO context opened by avio_open_dyn_buf()

Definition at line 1454 of file aviobuf.c.

Referenced by ac3_close_context(), ac3_handle_packet(), asfrtp_close_context(), asfrtp_parse_packet(), dash_free(), decode_str(), dv_close_context(), dv_handle_packet(), end_ebml_master_crc32(), ff_ape_write_tag(), ff_hevc_annexb2mp4_buf(), ff_id3v2_write_apic(), ff_isom_write_av1c(), ff_isom_write_avcc(), ff_mov_close_hinting(), ff_rtp_chain_mux_open(), ff_rtsp_undo_setup(), film_deinit(), h261_close_context(), h261_handle_packet(), h263_close_context(), h263_handle_packet(), hls_write_trailer(), id3v2_put_priv(), id3v2_put_ttag(), jpeg_close_context(), jpeg_parse_packet(), latm_close_context(), latm_parse_packet(), mkv_assemble_cues(), mkv_check_new_extra_data(), mkv_deinit(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_codecprivate(), mkv_write_trailer(), mov_flush_fragment(), mov_flush_fragment_interleaving(), mov_free(), mov_write_mfra_tag(), mov_write_track_udta_tag(), mov_write_udta_tag(), mpa_robust_close_context(), mpa_robust_parse_packet(), mpegts_write_packet_internal(), nut_write_packet(), nut_write_trailer(), rtp_mpegts_write_close(), rtp_mpegts_write_header(), set_codec_str(), svq3_close_context(), svq3_parse_packet(), tta_deinit(), vc2hq_handle_frame_fragment(), vc2hq_handle_packet(), vp8_broken_sequence(), vp8_close_context(), vp8_handle_packet(), vp9_close_context(), vp9_handle_packet(), webm_chunk_deinit(), write_chapter(), write_ctoc(), write_headers(), xiph_close_context(), and xiph_handle_packet().

◆ null_buf_write()

static int null_buf_write	(	void *	opaque,
		uint8_t *	buf,
		int	buf_size
	)

static

Definition at line 1467 of file aviobuf.c.

Referenced by ffio_open_null_buf().

◆ ffio_open_null_buf()

int ffio_open_null_buf ( AVIOContext ** s )

Open a write-only fake memory stream.

The written data is not stored anywhere - this is only used for measuring the amount of data written.

Parameters

s	new IO context

Returns: zero if no error.

Definition at line 1477 of file aviobuf.c.

Referenced by get_moov_size(), get_sidx_size(), mov_write_moof_tag(), and mov_write_sidx_tags().

◆ ffio_close_null_buf()

int ffio_close_null_buf ( AVIOContext * s )

Close a null buffer.

Parameters

s	an IO context opened by ffio_open_null_buf

Returns: the number of bytes written to the null buffer

Definition at line 1487 of file aviobuf.c.

Referenced by get_moov_size(), get_sidx_size(), mov_write_moof_tag(), and mov_write_sidx_tags().

Variable Documentation

◆ ff_avio_options

const AVOption ff_avio_options[]

static

Initial value:

= {
    {"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  0, 0, D },
    { NULL },
}

Definition at line 68 of file aviobuf.c.

◆ ff_avio_class

const AVClass ff_avio_class

Initial value:

= {
    .class_name = "AVIOContext",
    .item_name  = av_default_item_name,
    .version    = LIBAVUTIL_VERSION_INT,
    .option     = ff_avio_options,
    .child_next = ff_avio_child_next,
 
 
 
    .child_class_iterate = child_class_iterate,
}

Definition at line 73 of file aviobuf.c.

Referenced by ffio_fdopen(), and format_child_class_iterate().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ IO_BUFFER_SIZE

◆ SHORT_SEEK_THRESHOLD

◆ OFFSET

◆ E

◆ D

◆ PUT_STR16

◆ GET_STR16

Function Documentation

◆ ff_avio_child_next()

◆ child_class_iterate()

◆ fill_buffer()

◆ url_resetbuf()

◆ ffio_init_context()

◆ avio_alloc_context()

◆ avio_context_free()

◆ writeout()

◆ flush_buffer()

◆ avio_w8()

◆ ffio_fill()

◆ avio_write()

◆ avio_flush()

◆ avio_seek()

◆ avio_skip()

◆ avio_size()

◆ avio_feof()

◆ avio_wl32()

◆ avio_wb32()

◆ avio_put_str()

◆ put_str16()

◆ avio_wl64()

◆ avio_wb64()

◆ avio_wl16()

◆ avio_wb16()

◆ avio_wl24()

◆ avio_wb24()

◆ avio_write_marker()

◆ read_packet_wrapper()

◆ ff_crc04C11DB7_update()

◆ ff_crcEDB88320_update()

◆ ff_crcA001_update()

◆ ffio_get_checksum()

◆ ffio_init_checksum()

◆ avio_r8()

◆ avio_read()

◆ ffio_read_size()

◆ ffio_read_indirect()

◆ avio_read_partial()

◆ avio_rl16()

◆ avio_rl24()

◆ avio_rl32()

◆ avio_rl64()

◆ avio_rb16()

◆ avio_rb24()

◆ avio_rb32()

◆ ff_get_line()

◆ ff_get_chomp_line()

◆ ff_read_line_to_bprint()

◆ ff_read_line_to_bprint_overwrite()

◆ avio_get_str()

◆ avio_rb64()

◆ ffio_read_varlen()

◆ ffio_fdopen()

◆ ffio_geturlcontext()

◆ update_checksum()

◆ ffio_ensure_seekback()

◆ ffio_set_buf_size()

◆ ffio_realloc_buf()

◆ ffio_rewind_with_probe_data()

◆ avio_open()

◆ ffio_open_whitelist()

◆ avio_open2()

◆ avio_close()

◆ avio_closep()

◆ avio_printf()

◆ avio_print_string_array()