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aviobuf.c File Reference
#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>

Go to the source code of this file.

Data Structures

struct  DynBuffer
 

Macros

#define IO_BUFFER_SIZE   32768
 
#define SHORT_SEEK_THRESHOLD   4096
 Do seeks within this distance ahead of the current buffer by skipping data instead of calling the protocol seek function, for seekable protocols.
 
#define GET_STR16(type, read)
 

Functions

static voidffio_url_child_next (void *obj, void *prev)
 
static const AVClassffio_url_child_class_next (const AVClass *prev)
 
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))
 
AVIOContextavio_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.
 
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 to the output s.
 
int64_t avio_seek (AVIOContext *s, int64_t offset, int whence)
 fseek() equivalent for AVIOContext.
 
int64_t avio_skip (AVIOContext *s, int64_t offset)
 Skip given number of bytes forward.
 
int64_t avio_size (AVIOContext *s)
 Get the filesize.
 
int url_feof (AVIOContext *s)
 feof() equivalent for AVIOContext.
 
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.
 
int avio_put_str16le (AVIOContext *s, const char *str)
 Convert an UTF-8 string to UTF-16LE and write it.
 
int ff_get_v_length (uint64_t val)
 Get the length in bytes which is needed to store val as v.
 
void ff_put_v (AVIOContext *bc, uint64_t val)
 Put val using a variable number of bytes.
 
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)
 
unsigned long ff_crc04C11DB7_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.
 
int ffio_read_indirect (AVIOContext *s, unsigned char *buf, int size, const unsigned char **data)
 Read size bytes from AVIOContext, returning a pointer.
 
int ffio_read_partial (AVIOContext *s, unsigned char *buf, int size)
 Read size bytes from AVIOContext into buf.
 
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.
 
int avio_get_str (AVIOContext *s, int maxlen, char *buf, int buflen)
 Read a string from pb into buf.
 
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.
 
int ffio_ensure_seekback (AVIOContext *s, int buf_size)
 Ensures that the requested seekback buffer size will be available.
 
int ffio_set_buf_size (AVIOContext *s, int buf_size)
 
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.
 
int avio_open (AVIOContext **s, const char *filename, int flags)
 Create and initialize a AVIOContext for accessing the resource indicated by url.
 
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.
 
int avio_close (AVIOContext *s)
 Close the resource accessed by the AVIOContext s and free it.
 
int avio_closep (AVIOContext **s)
 Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL.
 
int avio_printf (AVIOContext *s, const char *fmt,...)
 
int avio_pause (AVIOContext *s, int pause)
 Pause and resume playing - only meaningful if using a network streaming protocol (e.g.
 
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.
 
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.
 
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.
 
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'.
 
int avio_close_dyn_buf (AVIOContext *s, uint8_t **pbuffer)
 Return the written size and a pointer to the buffer.
 
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.
 
int ffio_close_null_buf (AVIOContext *s)
 Close a null buffer.
 

Variables

static const AVOption ffio_url_options []
 
const AVClass ffio_url_class
 

Macro Definition Documentation

#define IO_BUFFER_SIZE   32768

Definition at line 36 of file aviobuf.c.

Referenced by ffio_ensure_seekback(), ffio_fdopen(), and fill_buffer().

#define SHORT_SEEK_THRESHOLD   4096

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.

Referenced by avio_seek().

#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 695 of file aviobuf.c.

Function Documentation

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

Definition at line 45 of file aviobuf.c.

static const AVClass* ffio_url_child_class_next ( const AVClass prev)
static

Definition at line 51 of file aviobuf.c.

static void fill_buffer ( AVIOContext s)
static

Definition at line 415 of file aviobuf.c.

Referenced by avio_r8(), avio_read(), avio_seek(), ffio_read_partial(), and url_feof().

static int url_resetbuf ( AVIOContext s,
int  flags 
)
static

Definition at line 812 of file aviobuf.c.

Referenced by ffio_init_context(), and ffio_set_buf_size().

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

Allocate and initialize an AVIOContext for buffered I/O.

It must be later freed with av_free().

Parameters
bufferMemory block for input/output operations via AVIOContext. The buffer must be allocated with av_malloc() and friends.
buffer_sizeThe 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_flagSet to 1 if the buffer should be writable, 0 otherwise.
opaqueAn opaque pointer to user-specific data.
read_packetA function for refilling the buffer, may be NULL.
write_packetA function for writing the buffer contents, may be NULL. The function may not change the input buffers content.
seekA function for seeking to specified byte position, may be NULL.
Returns
Allocated AVIOContext or NULL on failure.

Definition at line 111 of file aviobuf.c.

Referenced by ff_flac_parse_picture(), ffio_fdopen(), hds_write_header(), http_receive_data(), ism_write_header(), main(), open_null_ctx(), rdt_parse_packet(), read_gab2_sub(), swf_read_header(), url_open_dyn_buf_internal(), and wtvfile_open_sector().

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

Definition at line 128 of file aviobuf.c.

Referenced by avio_write(), and flush_buffer().

static void flush_buffer ( AVIOContext s)
static

Definition at line 140 of file aviobuf.c.

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

void avio_w8 ( AVIOContext s,
int  b 
)

Definition at line 153 of file aviobuf.c.

Referenced by aiff_write_trailer(), asf_write_header1(), avi_write_header(), avi_write_ix(), avi_write_packet(), avio_put_str(), avio_wb16(), avio_wb24(), avio_wb32(), avio_wl16(), avio_wl24(), avio_wl32(), caf_write_header(), decode_str(), ff_end_tag(), ff_id3v2_start(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_put_bmp_header(), ff_put_v(), ff_put_wav_header(), ff_riff_write_info_tag(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ff_rtp_send_rtcp_feedback(), ffm_write_header(), flac_write_block_padding(), flush_packet(), flv_write_header(), flv_write_packet(), get_line(), gif_image_write_header(), 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(), h263_handle_packet(), hvcc_write(), ico_write_packet(), ico_write_trailer(), id3v2_put_size(), id3v2_put_ttag(), klv_encode_ber4_length(), klv_encode_ber_length(), mkv_write_block(), mkv_write_codecprivate(), mkv_write_vtt_blocks(), mov_create_chapter_track(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_chan_tag(), mov_write_chpl_tag(), mov_write_d263_tag(), mov_write_edts_tag(), mov_write_esds_tag(), mov_write_hdlr_tag(), mov_write_int8_metadata(), mov_write_iods_tag(), mov_write_itunes_hdlr_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_tcmi_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(), mp3_update_xing(), mp3_write_xing(), 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_page(), oma_write_header(), output_immediate(), output_match(), print_csv_escaped_str(), put_amf_bool(), put_amf_double(), put_avc_eos_tag(), put_descr(), put_ebml_id(), put_ebml_num(), put_ebml_sint(), put_ebml_size_unknown(), put_ebml_uint(), put_id3v2_tags(), put_meta(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_str(), put_str8(), put_timestamp(), put_vcd_padding_sector(), put_xiph_codecpriv(), put_xiph_size(), read_file(), rm_write_video(), rv10_write_header(), smjpeg_write_header(), swf_write_header(), swf_write_video(), vc1test_write_header(), voc_write_packet(), voc_write_trailer(), write_abst(), write_escape_str(), write_header(), write_packet_header(), write_streamheader(), write_table_entries_attrib(), write_tags(), and write_trailer().

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

Definition at line 175 of file aviobuf.c.

Referenced by a64_write_header(), adts_write_packet(), aiff_write_header(), aiff_write_packet(), asf_write_header1(), asf_write_markers(), asfrtp_parse_packet(), ast_write_packet(), avi_write_packet(), avio_close_dyn_buf(), avio_printf(), avio_put_str(), caf_write_header(), caf_write_packet(), caf_write_trailer(), copy_moof(), copy_tag(), crc_write_trailer(), daud_write_packet(), dump_attachment(), dv_write_packet(), ff_ape_write_tag(), ff_avc_parse_nal_units(), ff_flac_write_header(), ff_hevc_annexb2mp4(), ff_id3v2_write_apic(), ff_isom_write_avcc(), ff_isom_write_hvcc(), 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(), ffm_write_header(), flac_write_block_comment(), flac_write_packet(), flac_write_trailer(), flush_packet(), flv_write_header(), flv_write_packet(), framecrc_write_packet(), get_video_private_data(), gif_image_write_header(), gxf_write_material_data_section(), gxf_write_mpeg_auxiliary(), gxf_write_packet(), gxf_write_track_description(), gxf_write_umf_media_description(), h263_handle_packet(), hds_write(), http_send_data(), hvcc_write(), ico_write_packet(), id3v2_put_ttag(), ilbc_write_header(), ilbc_write_packet(), init_file(), ivf_write_header(), ivf_write_packet(), jacosub_write_header(), jpeg_parse_packet(), latm_parse_packet(), latm_write_packet(), main(), matroska_parse_tracks(), md5_finish(), microdvd_write_header(), microdvd_write_packet(), mkv_flush_dynbuf(), mkv_write_block(), mkv_write_codecprivate(), mkv_write_native_codecprivate(), mov_flush_fragment(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_chpl_tag(), mov_write_dvc1_tag(), mov_write_esds_tag(), mov_write_extradata_tag(), mov_write_glbl_tag(), mov_write_hdlr_tag(), mov_write_isml_manifest(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tcmi_tag(), mov_write_tfrf_tag(), mov_write_tfxd_tag(), mov_write_tmcd_tag(), mov_write_trailer(), mov_write_udta_sdp(), mov_write_udta_tag(), mov_write_video_tag(), mp3_write_trailer(), mpegts_insert_null_packet(), mpegts_insert_pcr_only(), mpegts_prefix_m2ts_header(), mpegts_write_pes(), mpjpeg_write_header(), mpjpeg_write_packet(), mxf_write_cdci_common(), mxf_write_common_fields(), mxf_write_d10_video_packet(), mxf_write_essence_container_refs(), mxf_write_generic_desc(), mxf_write_index_table_segment(), mxf_write_klv_fill(), mxf_write_metadata_key(), mxf_write_multi_descriptor(), mxf_write_packet(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_random_index_pack(), mxf_write_system_item(), mxf_write_track(), mxf_write_umid(), mxf_write_uuid(), nut_write_header(), nut_write_packet(), ogg_write_page(), output_immediate(), print_report(), put_amf_string(), put_ebml_binary(), put_flac_codecpriv(), put_frame(), put_meta(), put_packet(), put_str(), put_str16(), put_swf_matrix(), put_swf_rect(), put_wv_codecpriv(), put_xiph_codecpriv(), read_file(), rm_write_audio(), rm_write_video(), roq_write_header(), rso_write_packet(), rtsp_cmd_describe(), rv10_write_header(), section_write_packet(), shift_data(), smjpeg_write_header(), smjpeg_write_packet(), sox_write_header(), spdif_write_packet(), srt_write_packet(), svq3_parse_packet(), swf_write_header(), swf_write_video(), vc1test_write_header(), vc1test_write_packet(), voc_write_header(), voc_write_packet(), vp8_handle_packet(), webvtt_write_packet(), write_chapter(), write_frame(), write_globalinfo(), write_header(), write_header_chunk(), write_hint_packets(), write_mainheader(), write_packet(), 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().

void avio_flush ( AVIOContext s)

Force flushing of buffered data to the output s.

Force the buffered data to be immediately written to the output, without to wait to fill the internal buffer.

Definition at line 195 of file aviobuf.c.

Referenced by aiff_write_header(), aiff_write_trailer(), asf_write_header(), asf_write_trailer(), ast_write_header(), ast_write_trailer(), av_write_frame(), av_write_trailer(), avi_write_ix(), avio_close(), avio_close_dyn_buf(), avio_write(), caf_write_header(), caf_write_trailer(), close_file(), copy_moof(), dump_attachment(), ff_framehash_write_header(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ff_rtp_send_rtcp_feedback(), ffio_close_null_buf(), ffm_write_header(), flac_write_trailer(), flush_packet(), gif_write_header(), gxf_write_header(), gxf_write_trailer(), hds_flush(), hds_write_header(), ico_write_header(), ilbc_write_header(), ism_flush(), ism_write_header(), jacosub_write_header(), main(), md5_finish(), microdvd_write_header(), mkv_start_new_cluster(), mkv_write_flush_packet(), mkv_write_header(), mov_flush_fragment(), mov_write_header(), mpegts_write_flush(), mpegts_write_header(), mpegts_write_pes(), mpjpeg_write_header(), mxf_write_packet(), mxf_write_partition(), nut_write_header(), ogg_write_page(), print_report(), put_vcd_padding_sector(), rm_write_header(), roq_write_header(), rso_write_header(), segment_end(), shift_data(), smjpeg_write_header(), sox_write_header(), sox_write_trailer(), swf_write_header(), vc1test_write_trailer(), webvtt_write_header(), write_fragment(), write_header(), write_manifest(), write_packet(), and write_trailer().

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

fseek() equivalent for AVIOContext.

Returns
new position or AVERROR.

Definition at line 201 of file aviobuf.c.

Referenced by adjust_write_index(), adts_aac_read_header(), adx_read_header(), aiff_read_header(), aiff_write_trailer(), ape_read_header(), ape_read_packet(), ape_read_seek(), asf_build_simple_index(), asf_get_packet(), asf_read_frame_header(), asf_read_header(), asf_read_pts(), asf_read_seek(), asf_write_header1(), asf_write_trailer(), ast_write_trailer(), av_seek(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_packet(), avi_read_seek(), avi_write_counters(), avi_write_ix(), avi_write_trailer(), avio_seek(), avio_skip(), avio_tell(), bfi_read_header(), caf_write_trailer(), check(), cine_read_header(), cine_read_packet(), close_file(), dsf_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_end_tag(), ff_gen_syncpoint_search(), ff_id3v1_read(), ff_id3v2_finish(), ff_pcm_read_seek(), ff_read_riff_info(), ff_restore_parser_state(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_seek_frame_binary(), ffm2_read_header(), ffm_read_data(), ffm_seek1(), film_read_packet(), find_and_decode_index(), find_any_startcode(), finish_chunk_noindex(), flac_read_header(), flac_read_timestamp(), flac_write_trailer(), flv_data_packet(), flv_read_header(), flv_read_packet(), flv_write_header(), flv_write_packet(), flv_write_trailer(), get_attachment(), 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(), hnm_read_packet(), ico_write_trailer(), id3v2_parse(), id3v2_read_internal(), idcin_read_seek(), iff_read_header(), ipmovie_read_header(), load_ipmovie_packet(), lvf_read_header(), matroska_parse_seekhead_entry(), matroska_read_seek(), matroska_resync(), mkv_write_seekhead(), mkv_write_trailer(), mov_read_chapters(), mov_read_custom_2plus(), mov_read_default(), mov_read_dref(), mov_read_dvc1(), mov_read_glbl(), mov_read_header(), mov_read_meta(), mov_read_packet(), mov_read_timecode_track(), 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_seek(), 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(), mtv_read_header(), mv_read_packet(), mxf_parse_handle_essence(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet(), mxf_read_packet_old(), mxf_read_random_index_pack(), mxf_read_seek(), mxf_seek_to_previous_partition(), mxf_write_footer(), mxf_write_partition(), nsv_parse_NSVf_header(), nsv_read_seek(), nut_read_header(), nuv_read_dts(), ogg_get_length(), ogg_read_page(), ogg_read_timestamp(), ogg_replace_stream(), ogg_restore(), ogg_update_checksum(), oma_read_seek(), parse_fragment(), parse_keyframes_index(), parse_media_type(), parse_mp4_descr(), 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_braindead_odml_indx(), read_frame(), read_header(), read_id3(), read_mfra(), read_packet(), read_seek(), read_tfra(), rl2_read_packet(), rm_read_dts(), rm_read_header(), rm_read_index(), rm_write_trailer(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rso_write_trailer(), sdr2_read_header(), seek_back(), seek_by_sector(), seek_frame_byte(), seek_frame_generic(), seq_fill_buffer(), seq_init_frame_buffers(), seq_parse_frame_data(), seq_read_packet(), shift_data(), skip_reserved(), smacker_read_packet(), smjpeg_write_trailer(), sox_write_trailer(), str_read_header(), swf_write_trailer(), tak_read_header(), thp_read_header(), thp_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_seek(), update_size(), updatePacketSize(), updateSize(), vc1test_write_trailer(), vmd_read_header(), vmd_read_packet(), vqf_read_seek(), wc3_read_header(), wc3_read_packet(), webm_clusters_start_with_keyframe(), webm_dash_manifest_cues(), write_fragments(), write_hint_packets(), write_root_table(), write_stream_codec_info(), write_trailer(), wsvqa_read_header(), wv_read_block_header(), wv_read_header(), wv_read_seek(), wv_write_trailer(), xmv_fetch_audio_packet(), xmv_fetch_new_packet(), xmv_fetch_video_packet(), yop_read_header(), and yop_read_seek().

int64_t avio_skip ( AVIOContext s,
int64_t  offset 
)

Skip given number of bytes forward.

Returns
new position or AVERROR.

Definition at line 271 of file aviobuf.c.

Referenced by aea_read_header(), afc_read_header(), aiff_read_header(), amf_get_string(), amf_parse_object(), amf_skip_tag(), ape_read_header(), asf_build_simple_index(), asf_parse_packet(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), asfrtp_parse_packet(), ast_read_header(), ast_read_packet(), ast_write_trailer(), avformat_open_input(), avi_read_header(), avi_read_nikon(), avi_sync(), avi_write_ix(), avi_write_trailer(), avr_read_header(), avs_read_header(), avs_read_packet(), bfi_read_header(), cdata_read_header(), cdxl_read_packet(), check_file_header(), cine_read_header(), cine_read_packet(), decode_frame(), dfa_read_header(), dfa_read_packet(), dsf_read_header(), dtshd_read_header(), dxa_read_header(), ea_read_packet(), ebml_parse_elem(), epaf_read_header(), ff_flac_parse_picture(), ff_get_line(), ff_get_wav_header(), ff_img_read_packet(), ff_mov_read_chan(), ff_mov_read_stsd_entries(), ff_mp4_parse_es_descr(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ff_spdif_read_packet(), ff_voc_get_packet(), finished_reading_packet(), flac_read_header(), flv_read_header(), flv_read_packet(), flv_set_video_codec(), flv_write_header(), fourxm_read_header(), fourxm_read_packet(), frm_read_header(), get_aiff_header(), get_codec_data(), get_dts(), get_meta(), get_packet_header(), get_tag(), gif_read_ext(), gif_read_packet(), gif_skip_subblocks(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_read_index(), gxf_track_tags(), hnm_read_header(), hnm_read_packet(), ico_write_header(), id3v2_parse(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), ircam_read_header(), lmlm4_read_packet(), lvf_read_header(), lvf_read_packet(), lxf_read_header(), matroska_parse_tracks(), mmf_read_header(), mov_metadata_loci(), mov_parse_stsd_data(), mov_parse_stsd_video(), mov_read_ares(), mov_read_chan(), mov_read_covr(), mov_read_custom(), mov_read_custom_2plus(), mov_read_default(), mov_read_dref(), mov_read_moov(), mov_read_mvhd(), mov_read_strf(), mov_read_uuid(), 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(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mv_read_header(), mv_read_packet(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_header(), mxf_read_index_entry_array(), mxf_read_material_package(), mxf_read_packet_old(), mxf_read_partition_pack(), mxf_read_random_index_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), nc_read_packet(), nist_read_header(), nsv_read_chunk(), nut_read_packet(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), ogg_replace_stream(), parse_chunks(), parse_dsd_diin(), parse_dsd_prop(), parse_global_var(), parse_media_type(), parse_video_var(), parse_videoinfoheader2(), pmp_header(), pmp_packet(), process_audio_header_eacs(), process_ea_header(), process_ipmovie_chunk(), process_video_header_cmv(), process_video_header_mdec(), process_video_header_vp6(), 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_gab2_sub(), read_header(), read_index(), read_kuki_chunk(), 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(), roq_read_packet(), rpl_read_packet(), rsd_read_header(), scan_file(), sdr2_read_header(), sdr2_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), smjpeg_read_header(), smush_read_header(), smush_read_packet(), sol_read_header(), sox_read_header(), swf_read_header(), swf_read_packet(), sync(), tak_read_header(), tmv_read_packet(), tta_read_header(), txd_read_packet(), var_read_string(), vc1t_read_header(), vid_read_header(), vivo_read_header(), vivo_read_packet(), voc_read_header(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_block_header(), wv_read_header(), xa_read_header(), xmv_read_header(), xwma_read_header(), yop_read_header(), and yop_read_packet().

int64_t avio_size ( AVIOContext s)
int url_feof ( AVIOContext s)

feof() equivalent for AVIOContext.

Returns
non zero if and only if end of file

Definition at line 295 of file aviobuf.c.

Referenced by adp_read_packet(), amr_read_packet(), ape_read_packet(), aqt_read_header(), asf_build_simple_index(), asf_get_packet(), asf_parse_packet(), asf_read_header(), ast_read_packet(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_sync(), avio_read(), bfi_read_packet(), cdxl_read_packet(), cin_read_frame_header(), daud_packet(), dtshd_read_header(), dv_read_header(), dxa_read_header(), dxa_read_packet(), ebml_read_num(), ff_img_read_packet(), ff_read_riff_info(), ff_spdif_read_packet(), ffio_read_partial(), ffm2_read_header(), ffm_resync(), find_any_startcode(), find_next_start_code(), flac_read_header(), flv_read_packet(), fourxm_read_packet(), get_codec_data(), get_line(), get_swf_tag(), get_tag(), gif_read_packet(), gxf_packet(), hls_read_packet(), idcin_read_packet(), iff_read_header(), ipmovie_read_header(), jacosub_read_header(), lrc_read_header(), lvf_read_header(), lvf_read_packet(), matroska_resync(), microdvd_read_header(), mmf_read_packet(), mov_read_default(), mov_read_dref(), mov_read_packet(), mpc8_read_header(), mpc8_read_packet(), mpegps_read_pes_header(), mpegts_resync(), mpl2_read_header(), mpsub_read_header(), msnwc_tcp_read_header(), mxf_read_header(), mxf_read_local_tags(), mxf_read_packet_old(), mxf_read_sync(), mxg_read_packet(), nc_read_packet(), nist_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_legacy_attrib(), parse_playlist(), pjs_read_header(), pmp_header(), pmp_packet(), process_audio_header_elements(), process_ipmovie_chunk(), qcp_read_packet(), read_braindead_odml_indx(), read_header(), read_line(), read_packet(), read_thread(), realtext_read_header(), redspark_read_packet(), resync(), rm_read_header(), rm_read_packet(), roq_read_packet(), rsd_read_packet(), sami_read_header(), scan_file(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), smush_read_header(), smush_read_packet(), sol_read_packet(), srt_read_header(), str_read_packet(), subviewer1_read_header(), subviewer_read_header(), sync(), tak_read_header(), tmv_read_packet(), txd_read_packet(), vc1t_read_packet(), vid_read_packet(), vivo_get_packet_header(), vivo_read_packet(), vplayer_read_header(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wtvfile_read_packet(), and wv_read_packet().

void avio_wl32 ( AVIOContext s,
unsigned int  val 
)

Definition at line 306 of file aviobuf.c.

Referenced by aiff_write_header(), 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_trailer(), avio_wl64(), caf_write_header(), ff_ape_write_tag(), ff_end_tag(), ff_put_bmp_header(), ff_put_wav_header(), ff_riff_write_info_tag(), ff_start_tag(), ffio_wfourcc(), ffm_write_header(), finish_chunk_noindex(), gxf_write_flt_packet(), gxf_write_timecode_auxiliary(), gxf_write_umf_material_description(), gxf_write_umf_media_audio(), gxf_write_umf_media_description(), gxf_write_umf_media_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(), matroska_parse_tracks(), 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(), ogg_write_page(), 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(), rv10_write_header(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), swf_write_header(), swf_write_trailer(), vc1test_write_header(), vc1test_write_packet(), voc_write_packet(), write_abst(), write_chunk_header(), write_fat(), write_header(), write_index(), write_metadata_header(), 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().

void avio_wb32 ( AVIOContext s,
unsigned int  val 
)

Definition at line 314 of file aviobuf.c.

Referenced by aiff_write_header(), aiff_write_trailer(), ast_write_header(), ast_write_packet(), ast_write_trailer(), avio_wb64(), caf_write_header(), caf_write_trailer(), close_file(), copy_tag(), ff_avc_parse_nal_units(), ff_hevc_annexb2mp4(), ff_id3v2_start(), ff_id3v2_write_apic(), ff_mov_write_chan(), ff_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ff_rtp_send_rtcp_feedback(), ffm_write_header(), flush_packet(), flv_write_header(), flv_write_packet(), get_video_private_data(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_packet_header(), gxf_write_track_description(), gxf_write_umf_packet(), hvcc_write(), id3v2_put_ttag(), init_file(), mkv_write_codecprivate(), mov_create_chapter_track(), mov_flush_fragment(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_amr_tag(), mov_write_audio_tag(), mov_write_avcc_tag(), mov_write_avid_tag(), mov_write_chan_tag(), mov_write_chpl_tag(), mov_write_ctts_tag(), mov_write_d263_tag(), mov_write_dinf_tag(), mov_write_dref_tag(), mov_write_dvc1_tag(), mov_write_edts_tag(), mov_write_enda_tag(), mov_write_enda_tag_be(), mov_write_esds_tag(), mov_write_fiel_tag(), mov_write_ftyp_tag(), mov_write_glbl_tag(), mov_write_gmhd_tag(), mov_write_hdlr_tag(), mov_write_hmhd_tag(), mov_write_hvcc_tag(), mov_write_ilst_tag(), mov_write_int8_metadata(), mov_write_iods_tag(), mov_write_isml_manifest(), mov_write_itunes_hdlr_tag(), mov_write_mdat_tag(), mov_write_mdhd_tag(), mov_write_mdia_tag(), mov_write_meta_tag(), mov_write_mfhd_tag(), mov_write_mfra_tag(), mov_write_minf_tag(), mov_write_moof_tag_internal(), mov_write_moov_tag(), mov_write_ms_tag(), mov_write_mvex_tag(), mov_write_mvhd_tag(), mov_write_nmhd_tag(), mov_write_pasp_tag(), mov_write_psp_udta_tag(), mov_write_rtp_tag(), mov_write_smhd_tag(), mov_write_stbl_tag(), mov_write_stco_tag(), mov_write_string_data_tag(), mov_write_string_tag(), mov_write_stsc_tag(), mov_write_stsd_tag(), mov_write_stss_tag(), mov_write_stsz_tag(), mov_write_stts_tag(), mov_write_subtitle_tag(), mov_write_tapt_tag(), mov_write_tcmi_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_tmpo_tag(), mov_write_traf_tag(), mov_write_trailer(), mov_write_trak_tag(), mov_write_tref_tag(), mov_write_trex_tag(), mov_write_trkn_tag(), mov_write_trun_tag(), mov_write_udta_sdp(), mov_write_udta_tag(), mov_write_uuid_tag_ipod(), mov_write_uuid_tag_psp(), mov_write_uuidprof_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mov_write_vmhd_tag(), mov_write_wave_tag(), mov_write_wfex_tag(), mp3_update_xing(), mp3_write_xing(), mxf_write_cdci_common(), mxf_write_essence_container_data(), mxf_write_generic_desc(), mxf_write_generic_sound_common(), mxf_write_index_table_segment(), mxf_write_mpegvideo_desc(), mxf_write_multi_descriptor(), mxf_write_partition(), mxf_write_primer_pack(), mxf_write_random_index_pack(), mxf_write_refs_count(), mxf_write_structural_component(), mxf_write_system_item(), mxf_write_track(), mxf_write_wav_common(), ogg_update_checksum(), oma_write_header(), output_match(), put_avc_eos_tag(), put_id3v2_tags(), put_meta(), put_padding_packet(), rm_write_trailer(), rm_write_video(), rv10_write_header(), smjpeg_write_header(), smjpeg_write_packet(), smjpeg_write_trailer(), sox_write_header(), swf_write_video(), update_size(), updatePacketSize(), write_abst(), write_chapter(), write_header_chunk(), write_hint_packets(), write_matrix(), write_packet_header(), and write_trailer().

int avio_put_str ( AVIOContext s,
const char *  str 
)

Write a NULL-terminated string.

Returns
number of bytes written.

Definition at line 322 of file aviobuf.c.

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

int avio_put_str16le ( AVIOContext s,
const char *  str 
)

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

Returns
number of bytes written.

Definition at line 333 of file aviobuf.c.

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

int ff_get_v_length ( uint64_t  val)

Get the length in bytes which is needed to store val as v.

Definition at line 357 of file aviobuf.c.

Referenced by ff_put_v(), and nut_write_packet().

void ff_put_v ( AVIOContext bc,
uint64_t  val 
)
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 
)

Definition at line 395 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_rtp_check_and_send_back_rr(), ff_rtp_send_data(), ff_rtp_send_punch_packets(), ff_rtp_send_rtcp_feedback(), ffm_write_header(), flush_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_umf_media_description(), hvcc_write(), id3v2_put_ttag(), mkv_write_block(), mkv_write_vtt_blocks(), mov_create_chapter_track(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_audio_tag(), mov_write_enda_tag(), mov_write_enda_tag_be(), mov_write_esds_tag(), mov_write_fiel_tag(), mov_write_gmhd_tag(), mov_write_hmhd_tag(), mov_write_iods_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_psp_udta_tag(), mov_write_rtp_tag(), mov_write_smhd_tag(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_tcmi_tag(), mov_write_tkhd_tag(), mov_write_tmpo_tag(), mov_write_trkn_tag(), mov_write_uuidprof_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mxf_write_local_tag(), mxf_write_local_tag_utf16(), mxf_write_partition(), mxf_write_preface(), mxf_write_primer_pack(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_uuid(), mxf_write_wav_common(), output_match(), put_amf_string(), put_padding_packet(), put_str(), put_timestamp(), rm_write_video(), rso_write_header(), rso_write_trailer(), rv10_write_header(), smjpeg_write_header(), spdif_put_16(), updateSize(), write_chapter(), write_hint_packets(), write_packet_header(), and write_trailer().

void avio_wl24 ( AVIOContext s,
unsigned int  val 
)

Definition at line 401 of file aviobuf.c.

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

void avio_wb24 ( AVIOContext s,
unsigned int  val 
)
unsigned long ff_crc04C11DB7_update ( unsigned long  checksum,
const uint8_t buf,
unsigned int  len 
)

Definition at line 467 of file aviobuf.c.

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

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

Definition at line 473 of file aviobuf.c.

Referenced by mp3_parse_vbr_tags().

unsigned long ffio_get_checksum ( AVIOContext s)
void ffio_init_checksum ( AVIOContext s,
unsigned long(*)(unsigned long c, const uint8_t *p, unsigned int len update_checksum,
unsigned long  checksum 
)
int avio_r8 ( AVIOContext s)

Definition at line 499 of file aviobuf.c.

Referenced by aea_read_header(), 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_marker(), asf_read_picture(), asf_read_stream_properties(), asfrtp_parse_packet(), avi_read_header(), avi_sync(), avio_get_str(), avio_rb16(), avio_rb24(), avio_rl16(), avio_rl24(), avs_read_packet(), bfi_read_packet(), bmv_read_packet(), cdata_read_header(), cin_read_file_header(), cin_read_frame_header(), decode_str(), dv_read_header(), dxa_read_header(), ebml_read_num(), ebml_read_sint(), ebml_read_uint(), efi_read(), ff_get_line(), ff_mp4_parse_es_descr(), ff_mp4_read_dec_config_descr(), ff_mp4_read_descr(), ff_mp4_read_descr_len(), ff_sauce_read(), ff_smil_extract_next_chunk(), ff_spdif_read_packet(), ff_subtitles_read_chunk(), ff_voc_get_packet(), ffio_read_varlen(), ffm2_read_header(), ffm_read_header(), ffm_resync(), 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(), g723_1_read_packet(), get_attachment(), get_codec_data(), get_line(), get_pts(), get_size(), get_str(), get_str8(), get_strl(), get_token(), gif_read_ext(), gif_read_packet(), gif_skip_subblocks(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), id3v2_parse(), iff_read_header(), ipmovie_read_header(), klv_decode_ber_length(), lvf_read_header(), matroska_resync(), mmf_read_header(), mov_metadata_gnre(), mov_metadata_int8_bypass_padding(), mov_metadata_int8_no_padding(), mov_parse_stsd_video(), mov_read_chpl(), mov_read_ctts(), mov_read_dref(), mov_read_dvc1(), mov_read_elst(), mov_read_hdlr(), mov_read_mac_string(), mov_read_mdhd(), mov_read_mvhd(), mov_read_sbgp(), mov_read_stco(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfhd(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_resync(), msnwc_tcp_read_header(), mtv_read_header(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_pixel_layout(), mxf_read_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_keyframes_index(), parse_MP4IODescrTag(), parse_MP4SLDescrTag(), parse_packet_header(), pmp_packet(), process_audio_header_eacs(), process_audio_header_elements(), qcp_read_header(), qcp_read_packet(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), read_apic(), read_arbitrary(), read_braindead_odml_indx(), read_frame(), read_geobtag(), read_header(), read_line(), read_part_of_packet(), read_tfra(), read_ttag(), read_uint8(), read_xing_toc(), resync(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_metadata(), rsd_read_header(), seq_parse_frame_data(), skip_reserved(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), sol_read_header(), swf_read_header(), swf_read_packet(), sync(), tak_read_header(), tmv_read_header(), vc1t_read_header(), vc1t_read_packet(), vid_read_packet(), vivo_get_packet_header(), wv_read_block_header(), yop_read_header(), yuv4_read_header(), and yuv4_read_packet().

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

Read size bytes from AVIOContext into buf.

Returns
number of bytes read or AVERROR

Definition at line 508 of file aviobuf.c.

Referenced by add_metadata(), amf_get_string(), amr_read_header(), amr_read_packet(), ape_read_header(), ape_read_packet(), ape_tag_read_field(), append_packet_chunked(), asf_parse_packet(), asf_read_stream_properties(), av_probe_input_buffer2(), av_read(), avi_read_header(), avi_read_nikon(), avi_read_tag(), avio_read_to_bprint(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), bmv_read_packet(), cdxl_read_packet(), check_file_header(), cin_read_packet(), copy_moof(), copy_tag(), decode_frame(), decode_main_header(), dtshd_read_header(), dv_read_header(), dv_read_packet(), dv_read_timecode(), dxa_read_packet(), ebml_read_ascii(), ebml_read_binary(), ff_ape_parse_tag(), 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(), ffm_read_data(), film_read_header(), flac_read_header(), flv_queue_extradata(), fourxm_read_header(), fourxm_read_packet(), g723_1_read_packet(), get_meta(), get_metadata(), get_packet_header(), get_pts(), get_riff(), get_str(), get_tag(), gif_read_ext(), gif_read_packet(), id3v2_parse(), id3v2_read_internal(), idcin_read_packet(), iff_read_header(), iff_read_packet(), ilbc_read_header(), ilbc_read_packet(), ipmovie_read_header(), klv_read_packet(), load_ipmovie_packet(), lxf_read_header(), lxf_read_packet(), main(), modplug_read_header(), mov_metadata_raw(), mov_read_chpl(), mov_read_cmov(), mov_read_custom_2plus(), mov_read_default(), mov_read_dref(), mov_read_extradata(), mov_read_ftyp(), mov_read_hdlr(), mov_read_stsz(), mov_read_udta_string(), mov_read_uuid(), mpc8_parse_seektable(), mpc_read_packet(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_cryptographic_context(), mxf_read_generic_descriptor(), mxf_read_local_tags(), mxf_read_material_package(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_read_track(), mxg_update_cache(), next_byte(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), nuv_read_dts(), ogg_read_page(), ogg_replace_stream(), oma_read_header(), oma_read_seek(), open_output_file(), parse_chunks(), parse_fragment(), parse_MP4DecConfigDescrTag(), process_ipmovie_chunk(), qcp_read_header(), r3d_read_red1(), read_apic(), read_chapter(), read_file(), read_frame(), read_geobtag(), read_header(), read_header_gme(), read_kuki_chunk(), read_packet(), read_part_of_packet(), read_priv(), read_sm_data(), read_string(), read_table(), read_whole_file(), readfull(), rm_assemble_video_frame(), rm_read_audio_stream_info(), roq_read_header(), roq_read_packet(), sdr2_read_packet(), seq_fill_buffer(), seq_read_packet(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), sox_read_header(), str_read_header(), str_read_packet(), swf_read_packet(), sync(), tak_read_header(), thp_read_header(), tta_read_header(), vid_read_packet(), vivo_read_header(), vmd_read_header(), vmd_read_packet(), vqf_read_header(), vqf_read_packet(), wc3_read_header(), wc3_read_packet(), wsaud_read_header(), wsaud_read_packet(), wsvqa_read_header(), wsvqa_read_packet(), wtvfile_read_packet(), wv_read_block_header(), wv_read_packet(), xmv_process_packet_header(), yop_read_header(), and yop_read_packet().

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
sIO context
bufpointer to buffer into which to assemble the requested data if it is not available in contiguous addresses in the underlying buffer
sizenumber of bytes requested
dataaddress 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 556 of file aviobuf.c.

Referenced by read_packet().

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

Read size bytes from AVIOContext into buf.

This reads at most 1 packet. If that is not enough fewer bytes will be returned.

Returns
number of bytes read or AVERROR

Definition at line 568 of file aviobuf.c.

Referenced by ff_raw_read_partial_packet().

unsigned int avio_rl16 ( AVIOContext s)

Definition at line 605 of file aviobuf.c.

Referenced by ape_read_header(), asf_build_simple_index(), asf_get_packet(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_frame_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), avi_read_header(), avi_read_nikon(), avi_sync(), avio_rl24(), avio_rl32(), avs_read_header(), avs_read_packet(), cin_read_file_header(), cin_read_frame_header(), cine_read_header(), decode_str(), dfa_read_header(), ff_get_bmp_header(), ff_get_wav_header(), ff_sauce_read(), ff_spdif_read_packet(), ff_voc_get_packet(), ffm2_read_header(), ffm_read_header(), frm_read_header(), get_fourcc(), get_swf_tag(), get_tag(), get_value(), gif_read_ext(), gif_read_header(), hnm_read_header(), hnm_read_packet(), ingenient_read_packet(), lvf_read_header(), mpc8_get_chunk_header(), msnwc_tcp_read_packet(), mtv_read_header(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), parse_waveformatex(), pmp_header(), process_video_header_cmv(), process_video_header_mdec(), qcp_read_header(), qt_rtp_parse_packet(), read_braindead_odml_indx(), read_frame(), read_gab2_sub(), read_header(), read_packet(), read_uint16(), rl2_read_header(), scan_file(), seq_init_frame_buffers(), seq_parse_frame_data(), siff_parse_soun(), siff_parse_vbv1(), siff_read_packet(), smush_read_header(), sol_read_header(), swf_read_header(), swf_read_packet(), tmv_read_header(), tta_read_header(), vid_read_header(), vid_read_packet(), voc_read_header(), wv_read_block_header(), xa_read_header(), xmv_read_header(), and yop_read_header().

unsigned int avio_rl24 ( AVIOContext s)
unsigned int avio_rl32 ( AVIOContext s)

Definition at line 621 of file aviobuf.c.

Referenced by aiff_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), asf_build_simple_index(), asf_get_packet(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_frame_header(), asf_read_header(), asf_read_marker(), asf_read_metadata(), asf_read_picture(), asf_read_stream_properties(), ast_read_packet(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_nikon(), avio_rl64(), avs_read_header(), bfi_read_header(), bfi_read_packet(), check_file_header(), cin_read_file_header(), cin_read_frame_header(), cine_read_header(), cine_read_packet(), dfa_read_header(), dsf_read_header(), dxa_read_header(), ea_read_packet(), epaf_read_header(), ff_ape_parse_tag(), ff_get_bmp_header(), ff_get_wav_header(), ff_mov_read_chan(), ff_mov_read_stsd_entries(), ff_read_riff_info(), ff_rm_read_mdpr_codecdata(), ff_voc_get_packet(), ffm_read_header(), flac_read_header(), fourxm_read_packet(), get_aiff_header(), get_attachment(), get_codec_data(), get_fourcc(), get_riff(), get_swf_tag(), get_tag(), get_value(), guess_ni_flag(), gxf_header(), gxf_read_index(), hnm_read_header(), idcin_read_header(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), ircam_read_header(), lvf_read_header(), lvf_read_packet(), mmf_read_header(), mov_read_cmov(), mov_read_custom(), mov_read_custom_2plus(), mov_read_default(), mov_read_dref(), mov_read_glbl(), mov_read_hdlr(), mov_read_meta(), mov_read_sbgp(), mov_read_udta_string(), mov_read_wide(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), msnwc_tcp_read_packet(), mtv_read_header(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nuv_header(), ogg_read_page(), parse_chunks(), parse_dsd_diin(), parse_dsd_prop(), parse_fragment(), parse_legacy_attrib(), parse_waveformatex(), pmp_header(), pmp_packet(), process_audio_header_eacs(), process_audio_header_sead(), process_ea_header(), process_video_header_vp6(), qcp_read_header(), qcp_read_packet(), qt_rtp_parse_packet(), rdt_load_mdpr(), read_atom(), read_braindead_odml_indx(), read_desc_chunk(), read_gab2_sub(), read_header(), read_ints(), read_packet(), read_table(), read_uint32(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rpl_read_packet(), rsd_read_header(), scan_file(), sdr2_read_header(), sdr2_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), smjpeg_read_header(), smjpeg_read_packet(), smush_read_header(), sol_read_header(), sox_read_header(), swf_read_header(), swf_read_packet(), tak_read_header(), tmv_read_header(), tta_read_header(), txd_read_packet(), vc1t_read_header(), vc1t_read_packet(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wv_read_block_header(), xa_read_header(), xmv_fetch_video_packet(), xmv_process_packet_header(), xmv_read_extradata(), xmv_read_header(), and xwma_read_header().

uint64_t avio_rl64 ( AVIOContext s)
unsigned int avio_rb16 ( AVIOContext s)
unsigned int avio_rb24 ( AVIOContext s)
unsigned int avio_rb32 ( AVIOContext s)

Definition at line 652 of file aviobuf.c.

Referenced by afc_read_header(), aiff_read_header(), amf_parse_object(), amf_skip_tag(), ast_read_header(), ast_read_packet(), avi_sync(), avio_rb64(), check(), copy_tag(), decode_frame_header(), dv_read_header(), dxa_read_header(), ea_read_packet(), ebml_read_float(), epaf_read_header(), ff_flac_parse_picture(), ff_mov_read_chan(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_read_dec_config_descr(), ff_rm_read_mdpr_codecdata(), ffm2_read_header(), ffm_read_header(), flv_read_header(), flv_read_packet(), get_aiff_header(), get_packetheader(), get_tag(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), id3v2_parse(), iff_read_header(), ircam_read_header(), lmlm4_read_packet(), matroska_parse_tracks(), matroska_resync(), mmf_read_header(), mov_metadata_loci(), mov_parse_stsd_audio(), mov_parse_stsd_video(), mov_read_chap(), mov_read_chpl(), mov_read_cmov(), mov_read_ctts(), mov_read_custom(), mov_read_custom_2plus(), mov_read_default(), mov_read_dref(), mov_read_elst(), mov_read_ftyp(), mov_read_glbl(), mov_read_hdlr(), mov_read_mdhd(), mov_read_mvhd(), mov_read_pasp(), mov_read_sbgp(), mov_read_stco(), mov_read_stps(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfhd(), mov_read_timecode_track(), mov_read_tkhd(), mov_read_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(), mv_read_header(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_index_entry_array(), mxf_read_index_table_segment(), mxf_read_material_package(), mxf_read_partition_pack(), mxf_read_primer_pack(), mxf_read_random_index_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_read_track(), nuv_resync(), 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(), read_atom(), read_chapter(), read_desc_chunk(), read_header(), read_index(), read_info_chunk(), read_mfra(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_table(), read_tfra(), redspark_read_header(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), siff_parse_soun(), siff_parse_vbv1(), smjpeg_read_header(), smjpeg_read_packet(), smush_read_header(), smush_read_packet(), sox_read_header(), swf_read_header(), sync(), thp_read_header(), thp_read_packet(), vqf_read_header(), wc3_read_header(), and wc3_read_packet().

int 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
sthe read-only AVIOContext
bufbuffer to store the read line
maxlensize of the buffer
Returns
the length of the string written in the buffer, not including the final \0

Definition at line 660 of file aviobuf.c.

Referenced by aqt_read_header(), concat_read_header(), jacosub_read_header(), microdvd_read_header(), mpl2_read_header(), mpsub_read_header(), nist_read_header(), pjs_read_header(), pvf_read_header(), read_chomp_line(), subviewer1_read_header(), subviewer_read_header(), and vplayer_read_header().

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 677 of file aviobuf.c.

Referenced by ape_tag_read_field(), cine_read_header(), ffm2_read_header(), ffm_read_header(), mov_metadata_loci(), mov_read_chapters(), mov_read_custom(), mpegps_read_header(), read_apic(), read_info_chunk(), and var_read_string().

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.

Note
When the URLContext h has been opened in read+write mode, the AVIOContext can be used only for writing.
Parameters
sUsed 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 738 of file aviobuf.c.

Referenced by avio_open2(), and ff_rtp_chain_mux_open().

int ffio_ensure_seekback ( AVIOContext s,
int  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 this guarantee is lost.

Definition at line 770 of file aviobuf.c.

Referenced by mpegts_read_header().

int ffio_set_buf_size ( AVIOContext s,
int  buf_size 
)
Warning
must be called before any I/O

Definition at line 796 of file aviobuf.c.

Referenced by build_feed_streams(), ffm_read_data(), fill_buffer(), and open_input_stream().

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
sThe read-only AVIOContext to rewind
bufThe probe buffer containing the first buf_size bytes of the file
buf_sizeThe size of buf
Returns
>= 0 in case of success, a negative value corresponding to an AVERROR code in case of failure

Definition at line 826 of file aviobuf.c.

Referenced by av_probe_input_buffer2(), and ff_img_read_header().

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
sUsed to return the pointer to the created AVIOContext. In case of failure the pointed to value is set to NULL.
urlresource to access
flagsflags 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 870 of file aviobuf.c.

Referenced by build_feed_streams(), lavfi_read_header(), main(), open_output_file(), open_slave(), read_file(), and shift_data().

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
sUsed to return the pointer to the created AVIOContext. In case of failure the pointed to value is set to NULL.
urlresource to access
flagsflags which control how the resource indicated by url is to be opened
int_cban interrupt callback to be used at the protocols level
optionsA 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 875 of file aviobuf.c.

Referenced by avio_open(), copy_moof(), dump_attachment(), ff_img_read_packet(), get_preset_file_2(), hls_start(), hls_window(), init_file(), init_input(), main(), mov_open_dref(), open_output_file(), opt_progress(), parse_fragment(), parse_playlist(), read_header(), read_mfra(), seg_write_header(), segment_list_open(), segment_start(), write_abst(), write_fragment(), write_manifest(), and write_packet().

int avio_close ( AVIOContext s)
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 910 of file aviobuf.c.

Referenced by hls_window(), hls_write_trailer(), and read_file().

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

Definition at line 917 of file aviobuf.c.

int avio_pause ( AVIOContext h,
int  pause 
)

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

MMS).

Parameters
hIO context from which to call the read_pause function pointer
pause1 for pause, 0 for resume

Definition at line 930 of file aviobuf.c.

Referenced by av_read_pause(), and av_read_play().

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
hIO context from which to call the seek function pointers
stream_indexThe 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.
timestamptimestamp in AVStream.time_base units or if there is no stream specified then in AV_TIME_BASE units.
flagsOptional 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 937 of file aviobuf.c.

Referenced by asf_read_seek(), and flv_read_seek().

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 957 of file aviobuf.c.

Referenced by lavfi_read_header().

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

Definition at line 984 of file aviobuf.c.

Referenced by dyn_packet_buf_write(), and url_open_dyn_buf_internal().

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

Definition at line 1017 of file aviobuf.c.

Referenced by url_open_dyn_buf_internal().

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

Definition at line 1032 of file aviobuf.c.

Referenced by url_open_dyn_buf_internal().

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

Definition at line 1046 of file aviobuf.c.

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

int avio_open_dyn_buf ( AVIOContext **  s)
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
snew IO context
max_packet_sizemaximum packet size (must be > 0)
Returns
zero if no error.

Definition at line 1073 of file aviobuf.c.

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

int avio_close_dyn_buf ( AVIOContext s,
uint8_t **  pbuffer 
)
static int null_buf_write ( void opaque,
uint8_t buf,
int  buf_size 
)
static

Definition at line 1108 of file aviobuf.c.

Referenced by 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
snew IO context
Returns
zero if no error.

Definition at line 1118 of file aviobuf.c.

Referenced by get_moov_size(), and mov_write_moof_tag().

int ffio_close_null_buf ( AVIOContext s)

Close a null buffer.

Parameters
san IO context opened by ffio_open_null_buf
Returns
the number of bytes written to the null buffer

Definition at line 1128 of file aviobuf.c.

Referenced by get_moov_size(), and mov_write_moof_tag().

Variable Documentation

const AVOption ffio_url_options[]
static
Initial value:
= {
{ NULL },
}

Definition at line 56 of file aviobuf.c.

const AVClass ffio_url_class
Initial value:
= {
.class_name = "AVIOContext",
.item_name = av_default_item_name,
.option = ffio_url_options,
.child_next = ffio_url_child_next,
.child_class_next = ffio_url_child_class_next,
}

Definition at line 60 of file aviobuf.c.

Referenced by ffio_fdopen(), and format_child_class_next().