libavformat/aviobuf.c File Reference

#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "avio.h"
#include "avio_internal.h"
#include "internal.h"
#include <stdarg.h>

Go to the source code of this file.

Defines

#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(name, type)
#define PUT(name, type)
#define GET_STR16(type, read)

Functions

static void fill_buffer (AVIOContext *s)
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))
int init_put_byte (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))
AVIOContextav_alloc_put_byte (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))
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 put_flush_packet (AVIOContext *s)
int64_t avio_seek (AVIOContext *s, int64_t offset, int whence)
 fseek() equivalent for AVIOContext.
int url_fskip (AVIOContext *s, int64_t offset)
int64_t url_ftell (AVIOContext *s)
int64_t avio_size (AVIOContext *s)
 Get the filesize.
int url_feof (AVIOContext *s)
 feof() equivalent for AVIOContext.
int url_ferror (AVIOContext *s)
void avio_wl32 (AVIOContext *s, unsigned int val)
void avio_wb32 (AVIOContext *s, unsigned int val)
void put_strz (AVIOContext *s, const char *str)
int get_byte (AVIOContext *s)
int get_buffer (AVIOContext *s, unsigned char *buf, int size)
int get_partial_buffer (AVIOContext *s, unsigned char *buf, int size)
void put_byte (AVIOContext *s, int val)
void put_buffer (AVIOContext *s, const unsigned char *buf, int size)
void put_nbyte (AVIOContext *s, int b, int count)
int url_fopen (AVIOContext **s, const char *filename, int flags)
int url_fclose (AVIOContext *s)
int64_t url_fseek (AVIOContext *s, int64_t offset, int whence)
int64_t url_fsize (AVIOContext *s)
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)
void put_tag (AVIOContext *s, const char *tag)
unsigned long ff_crc04C11DB7_update (unsigned long checksum, const uint8_t *buf, unsigned int len)
unsigned long get_checksum (AVIOContext *s)
void 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 url_fgetc (AVIOContext *s)
int avio_read (AVIOContext *s, unsigned char *buf, int size)
 Read size bytes from AVIOContext into buf.
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)
char * get_strz (AVIOContext *s, char *buf, int maxlen)
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 ff_get_v (AVIOContext *bc)
int url_fdopen (AVIOContext **s, URLContext *h)
 Create and initialize a AVIOContext for accessing the resource referenced by the URLContext h.
int url_setbufsize (AVIOContext *s, int buf_size)
int url_resetbuf (AVIOContext *s, int flags)
 Reset the buffer for reading or writing.
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.
int avio_open (AVIOContext **s, const char *filename, int flags)
 Create and initialize a AVIOContext for accessing the resource indicated by url.
int avio_close (AVIOContext *s)
URLContexturl_fileno (AVIOContext *s)
char * url_fgets (AVIOContext *s, char *buf, int buf_size)
int url_fget_max_packet_size (AVIOContext *s)
int av_url_read_fpause (AVIOContext *s, int pause)
int64_t av_url_read_fseek (AVIOContext *s, int stream_index, int64_t timestamp, int flags)


Define Documentation

#define GET ( name,
type   ) 

Value:

type get_be ##name(AVIOContext *s) \
{\
    return avio_rb ##name(s);\
}\
    type get_le ##name(AVIOContext *s) \
{\
    return avio_rl ##name(s);\
}

Definition at line 304 of file aviobuf.c.

#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;\
    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 724 of file aviobuf.c.

#define IO_BUFFER_SIZE   32768

Definition at line 30 of file aviobuf.c.

Referenced by fill_buffer(), and url_fdopen().

#define PUT ( name,
type   ) 

Value:

void put_le ##name(AVIOContext *s, type val)\
{\
        avio_wl ##name(s, val);\
}\
    void put_be ##name(AVIOContext *s, type val)\
{\
        avio_wb ##name(s, val);\
}

Definition at line 321 of file aviobuf.c.

#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 37 of file aviobuf.c.

Referenced by avio_seek().


Function Documentation

AVIOContext* av_alloc_put_byte ( 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 
)

Definition at line 90 of file aviobuf.c.

int av_url_read_fpause ( AVIOContext s,
int  pause 
)

Definition at line 952 of file aviobuf.c.

Referenced by av_read_pause(), and av_read_play().

int64_t av_url_read_fseek ( AVIOContext s,
int  stream_index,
int64_t  timestamp,
int  flags 
)

Definition at line 959 of file aviobuf.c.

Referenced by asf_read_seek(), and flv_read_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 
)

Definition at line 104 of file aviobuf.c.

Referenced by av_alloc_put_byte(), rdt_parse_packet(), read_gab2_sub(), and wtvfile_open_sector().

int avio_close ( AVIOContext s  ) 

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 707 of file aviobuf.c.

Referenced by ffm_read_header(), get_strz(), mov_read_chapters(), and read_info_chunk().

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

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

Note:
When the resource indicated by url has been opened in read+write mode, the AVIOContext can be used only for writing.
Parameters:
s Used to return the pointer to the created AVIOContext. In case of failure the pointed to value is set to NULL.
flags flags which control how the resource indicated by url is to be opened
Returns:
0 in case of success, a negative value corresponding to an AVERROR code in case of failure

Definition at line 879 of file aviobuf.c.

Referenced by av_open_input_file(), build_feed_streams(), main(), mov_open_dref(), open_variant(), opt_output_file(), parse_playlist(), read_packet(), and url_fopen().

int avio_put_str ( AVIOContext s,
const char *  str 
)

Write a NULL-terminated string.

Returns:
number of bytes written.

Definition at line 380 of file aviobuf.c.

Referenced by avi_write_info_tag(), ffm_write_header(), id3v2_put_ttag(), and put_strz().

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 391 of file aviobuf.c.

Referenced by asf_write_header1(), id3v2_put_ttag(), mms_put_utf16(), and put_str16().

int avio_r8 ( AVIOContext s  ) 

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

Definition at line 539 of file aviobuf.c.

Referenced by aea_read_header(), amf_parse_object(), amr_read_packet(), ape_tag_read_field(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_stream_properties(), asfrtp_parse_packet(), avi_read_header(), avio_get_str(), avio_rb16(), avio_rb24(), avio_rl16(), avio_rl24(), avs_read_packet(), bfi_read_packet(), cin_read_file_header(), cin_read_frame_header(), dv_read_header(), dxa_read_header(), ebml_read_num(), ebml_read_uint(), efi_read(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_get_line(), ff_get_v(), ff_id3v2_parse(), ff_mov_read_esds(), ff_mov_read_stsd_entries(), ff_mp4_read_dec_config_descr(), ff_mp4_read_descr(), ff_mp4_read_descr_len(), ff_sauce_read(), ffm_read_header(), ffm_resync(), find_any_startcode(), find_next_start_code(), flv_read_header(), flv_read_metabody(), flv_read_packet(), flv_set_video_codec(), get_attachment(), get_byte(), get_codec_data(), get_line(), get_pts(), get_size(), get_str(), get_str8(), get_strl(), get_token(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_resync_media(), gxf_track_tags(), iff_read_header(), ipmovie_read_header(), klv_decode_ber_length(), mmf_read_header(), mov_read_chpl(), mov_read_ctts(), mov_read_dref(), mov_read_elst(), mov_read_hdlr(), mov_read_mac_string(), mov_read_mdhd(), mov_read_mvhd(), mov_read_stco(), mov_read_stsc(), mov_read_stsd(), mov_read_stss(), mov_read_stsz(), mov_read_stts(), mov_read_tfhd(), mov_read_tkhd(), mov_read_trex(), mov_read_trun(), mp4_read_iods(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_resync(), msnwc_tcp_read_header(), mtv_read_header(), mxf_read_pixel_layout(), mxf_read_sync(), nc_read_packet(), nsv_parse_NSVs_header(), nsv_read_chunk(), nsv_resync(), nut_read_packet(), nuv_header(), ogg_read_page(), parse_chunks(), parse_packet_header(), process_audio_header_eacs(), process_audio_header_elements(), qcp_read_header(), qcp_read_packet(), r3d_read_red1(), r3d_read_reda(), r3d_read_redv(), read_arbitary(), read_braindead_odml_indx(), read_frame(), read_header(), read_line(), read_part_of_packet(), read_ttag(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_metadata(), seq_parse_frame_data(), skip_reserved(), smacker_read_header(), smacker_read_packet(), sol_read_header(), spdif_read_packet(), swf_read_header(), swf_read_packet(), sync(), tmv_read_header(), url_fgets(), vc1t_read_header(), vc1t_read_packet(), vid_read_packet(), voc_get_packet(), wv_read_block_header(), wv_read_packet(), yop_read_header(), yuv4_read_header(), and yuv4_read_packet().

unsigned int avio_rb16 ( AVIOContext s  ) 

unsigned int avio_rb24 ( AVIOContext s  ) 

unsigned int avio_rb32 ( AVIOContext s  ) 

Definition at line 676 of file aviobuf.c.

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

uint64_t avio_rb64 ( AVIOContext s  ) 

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 559 of file aviobuf.c.

Referenced by add_metadata(), aiff_read_header(), amf_get_string(), amr_read_header(), amr_read_packet(), apc_read_header(), ape_read_header(), ape_read_packet(), ape_tag_read_field(), asf_read_stream_properties(), av_append_packet(), av_get_packet(), av_probe_input_buffer(), av_read(), avi_read_header(), avi_read_nikon(), avi_read_tag(), avs_read_packet(), avs_read_video_packet(), bfi_read_header(), cin_read_packet(), decode_frame(), decode_main_header(), decode_stream_header(), dv_read_header(), dv_read_packet(), dxa_read_packet(), ebml_read_ascii(), ebml_read_binary(), ff_ape_parse_tag(), ff_asf_parse_packet(), ff_get_guid(), ff_id3v1_read(), ff_id3v2_parse(), ff_id3v2_read(), ff_mp4_read_dec_config_descr(), ff_rm_parse_packet(), ff_sauce_read(), ffm_read_data(), ffm_read_header(), film_read_header(), film_read_packet(), flac_read_header(), flic_read_header(), flic_read_packet(), flv_get_extradata(), fourxm_read_header(), fourxm_read_packet(), get_aiff_header(), get_attachment(), get_buffer(), get_codec_data(), get_meta(), get_metadata(), get_packet_header(), get_pts(), get_riff(), get_str(), get_tag(), idcin_read_header(), idcin_read_packet(), iff_read_header(), iff_read_packet(), ingenient_read_packet(), ipmovie_read_header(), klv_read_packet(), load_ipmovie_packet(), lxf_read_header(), lxf_read_packet(), mmf_read_packet(), mov_read_chpl(), mov_read_cmov(), mov_read_dref(), mov_read_extradata(), mov_read_ftyp(), mov_read_glbl(), mov_read_smi(), mov_read_strf(), mov_read_stsz(), mov_read_udta_string(), mov_read_wave(), mp4_read_iods(), mpc8_parse_seektable(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mxf_decrypt_triplet(), mxf_get_d10_aes3_packet(), mxf_read_content_storage(), mxf_read_cryptographic_context(), mxf_read_generic_descriptor(), mxf_read_local_tags(), mxf_read_material_package(), mxf_read_primer_pack(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_read_track(), mxg_update_cache(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), ogg_read_page(), oma_read_header(), parse_chunks(), process_ipmovie_chunk(), qcp_read_header(), r3d_read_red1(), read_frame(), read_header(), read_kuki_chunk(), read_packet(), read_part_of_packet(), read_seek(), read_ttag(), rl2_read_header(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_extradata(), roq_read_header(), roq_read_packet(), seq_fill_buffer(), seq_read_packet(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), sox_read_header(), spdif_read_packet(), str_read_header(), str_read_packet(), swf_read_packet(), sync(), thp_read_header(), tta_read_header(), vc1t_read_header(), vmd_read_header(), vmd_read_packet(), 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(), yop_read_header(), and yop_read_packet().

unsigned int avio_rl16 ( AVIOContext s  ) 

unsigned int avio_rl24 ( AVIOContext s  ) 

unsigned int avio_rl32 ( AVIOContext s  ) 

Definition at line 645 of file aviobuf.c.

Referenced by aiff_read_header(), apc_read_header(), ape_read_header(), ape_tag_read_field(), asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_frame_header(), asf_read_header(), asf_read_marker(), asf_read_metadata(), asf_read_stream_properties(), au_read_header(), avi_load_index(), avi_read_header(), avi_read_idx1(), avi_read_info(), avi_read_nikon(), avio_rl64(), avs_read_header(), bfi_read_header(), bfi_read_packet(), cin_read_file_header(), cin_read_frame_header(), dxa_read_header(), ea_read_packet(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_mov_read_stsd_entries(), ff_rm_read_mdpr_codecdata(), ffm_read_header(), flac_read_header(), fourxm_read_packet(), get_aiff_header(), get_attachment(), get_codec_data(), get_fourcc(), get_riff(), get_swf_tag(), get_tag(), get_value(), guess_ni_flag(), gxf_header(), gxf_read_index(), idcin_read_header(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), mmf_read_header(), mov_read_cmov(), mov_read_default(), mov_read_dref(), mov_read_hdlr(), mov_read_meta(), mov_read_udta_string(), mov_read_wide(), mpc8_read_header(), mpc_read_header(), mpc_read_packet(), msnwc_tcp_read_packet(), mtv_read_header(), nsv_parse_NSVf_header(), nsv_parse_NSVs_header(), nsv_read_chunk(), nuv_header(), ogg_read_page(), parse_chunks(), parse_legacy_attrib(), 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_gab2_sub(), read_header(), read_ints(), read_packet(), rl2_read_header(), rm_read_header(), rm_read_index(), rpl_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), sol_read_header(), sox_read_header(), swf_read_header(), tmv_read_header(), tta_read_header(), txd_read_packet(), vc1t_read_header(), vc1t_read_packet(), voc_get_packet(), vqf_read_header(), wc3_read_header(), wc3_read_packet(), wv_read_block_header(), wv_read_packet(), and xa_read_header().

uint64_t avio_rl64 ( AVIOContext s  ) 

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

fseek() equivalent for AVIOContext.

Returns:
new position or AVERROR.

Definition at line 179 of file aviobuf.c.

Referenced by adjust_write_index(), aea_read_header(), aiff_read_header(), aiff_write_trailer(), amf_get_string(), amf_parse_object(), ape_read_header(), ape_read_packet(), asf_build_simple_index(), asf_read_content_desc(), asf_read_ext_content_desc(), asf_read_ext_stream_properties(), asf_read_frame_header(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata(), asf_read_pts(), asf_read_seek(), asf_read_stream_properties(), asf_write_header1(), asf_write_trailer(), asfrtp_parse_packet(), au_read_header(), av_estimate_timings_from_pts(), av_seek(), av_seek_frame_binary(), av_seek_frame_byte(), av_seek_frame_generic(), avi_load_index(), avi_read_header(), avi_read_nikon(), avi_read_packet(), avi_read_seek(), avi_write_counters(), avi_write_ix(), avi_write_trailer(), avs_read_header(), avs_read_packet(), bfi_read_header(), cdata_read_header(), decode_frame(), dv_read_header(), dv_read_seek(), dxa_read_header(), dxa_read_packet(), ea_read_packet(), ebml_parse_elem(), efi_read(), end_ebml_master(), end_header(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_gen_syncpoint_search(), ff_id3v1_read(), ff_id3v2_parse(), ff_id3v2_read(), ff_mov_read_stsd_entries(), ff_restore_parser_state(), ff_rm_read_mdpr_codecdata(), ff_sauce_read(), ffm_read_data(), ffm_seek1(), film_read_packet(), find_and_decode_index(), find_any_startcode(), flac_read_header(), flac_write_trailer(), flic_read_header(), flic_read_packet(), flv_read_header(), flv_read_packet(), flv_write_header(), flv_write_trailer(), fourxm_read_header(), fourxm_read_packet(), get_aiff_header(), get_attachment(), get_codec_data(), get_dts(), get_meta(), get_packet_header(), get_tag(), guess_ni_flag(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_read_index(), gxf_read_timestamp(), gxf_resync_media(), gxf_seek(), gxf_track_tags(), gxf_write_trailer(), gxf_write_umf_media_description(), idcin_read_packet(), iff_read_header(), ingenient_read_packet(), ipmovie_read_header(), lmlm4_read_packet(), load_ipmovie_packet(), lxf_read_header(), matroska_execute_seekhead(), matroska_read_header(), matroska_read_seek(), mkv_write_seekhead(), mkv_write_trailer(), mmf_read_header(), mov_read_chapters(), mov_read_default(), mov_read_dref(), mov_read_meta(), mov_read_mvhd(), mov_read_packet(), mov_read_strf(), mov_read_wave(), mov_read_wide(), mov_write_stsc_tag(), mov_write_stss_tag(), mov_write_trailer(), mp3_parse_vbr_tags(), mp3_read_header(), mpc8_handle_chunk(), mpc8_parse_seektable(), mpc8_read_header(), mpc8_read_seek(), mpc_read_header(), mpc_read_packet(), mpegps_psm_parse(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_resync(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_header(), mxf_read_local_tags(), mxf_read_material_package(), mxf_read_packet(), mxf_read_seek(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), mxf_write_footer(), mxf_write_partition(), nc_read_packet(), nsv_parse_NSVf_header(), nsv_read_chunk(), nsv_read_seek(), nut_read_header(), nut_read_packet(), nuv_header(), nuv_packet(), ogg_get_length(), ogg_read_timestamp(), ogg_restore(), ogg_update_checksum(), parse_chunks(), parse_media_type(), parse_videoinfoheader2(), pcm_read_seek(), process_audio_header_eacs(), process_ea_header(), process_ipmovie_chunk(), process_video_header_mdec(), process_video_header_vp6(), put_swf_end_tag(), pva_read_timestamp(), qcp_read_header(), qcp_read_packet(), qt_rtp_parse_packet(), r3d_read_header(), r3d_read_packet(), r3d_read_red1(), r3d_read_reos(), r3d_seek(), rdt_load_mdpr(), read_braindead_odml_indx(), read_frame(), read_gab2_sub(), read_header(), read_kuki_chunk(), read_packet(), read_part_of_packet(), read_seek(), rl2_read_header(), rl2_read_packet(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_header(), rm_read_index(), rm_write_trailer(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), rso_write_trailer(), seq_fill_buffer(), seq_init_frame_buffers(), seq_parse_frame_data(), seq_read_packet(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), skip_reserved(), smacker_read_packet(), sox_read_header(), sox_write_trailer(), spdif_read_packet(), str_read_header(), swf_read_header(), swf_read_packet(), swf_write_trailer(), sync(), thp_read_header(), thp_read_packet(), tmv_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_seek(), txd_read_packet(), updatePacketSize(), updateSize(), url_fseek(), url_fskip(), url_ftell(), vc1t_read_header(), vc1test_write_trailer(), vid_read_header(), vid_read_packet(), vmd_read_header(), vmd_read_packet(), voc_get_packet(), voc_read_header(), vqf_read_header(), vqf_read_seek(), wc3_read_header(), wc3_read_packet(), write_hint_packets(), wsvqa_read_header(), wsvqa_read_packet(), wtvfile_open_sector(), wtvfile_read_packet(), wtvfile_seek(), wv_read_block_header(), wv_read_header(), wv_read_seek(), xa_read_header(), yop_read_header(), yop_read_packet(), and yop_read_seek().

int64_t avio_size ( AVIOContext s  ) 

void avio_w8 ( AVIOContext s,
int  b 
)

Definition at line 137 of file aviobuf.c.

Referenced by a64_write_packet(), aiff_write_trailer(), asf_write_header1(), avi_write_header(), avi_write_info_tag(), avi_write_ix(), avi_write_packet(), avio_put_str(), avio_wb16(), avio_wb24(), avio_wb32(), avio_wl16(), avio_wl24(), avio_wl32(), ff_isom_write_avcc(), ff_put_v(), ff_rtp_send_data(), ffm_write_header(), flac_write_block_padding(), flush_packet(), flv_write_header(), flv_write_packet(), gif_image_write_header(), gif_image_write_image(), gif_write_trailer(), gif_write_video(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_mpeg_auxiliary(), gxf_write_packet_header(), gxf_write_padding(), gxf_write_timecode_auxiliary(), gxf_write_track_description(), gxf_write_umf_media_description(), gxf_write_umf_packet(), id3v2_put_size(), id3v2_put_ttag(), klv_encode_ber4_length(), klv_encode_ber_length(), mkv_write_ass_blocks(), mkv_write_block(), mov_write_3gp_udta_tag(), mov_write_amr_tag(), mov_write_chpl_tag(), mov_write_d263_tag(), mov_write_esds_tag(), mov_write_hdlr_tag(), mov_write_itunes_hdlr_tag(), mov_write_mdhd_tag(), mov_write_mvhd_tag(), mov_write_svq3_tag(), mov_write_tkhd_tag(), mov_write_video_tag(), mxf_write_cdci_common(), mxf_write_d10_audio_packet(), mxf_write_d10_video_packet(), mxf_write_generic_sound_common(), mxf_write_index_table_segment(), mxf_write_klv_fill(), mxf_write_mpegvideo_desc(), mxf_write_system_item(), mxf_write_timecode_component(), mxf_write_umid(), ogg_write_page(), output_immediate(), output_match(), put_amf_bool(), put_amf_double(), put_avc_eos_tag(), put_byte(), put_ebml_id(), put_ebml_num(), put_ebml_size_unknown(), put_ebml_uint(), put_ebml_void(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_str(), put_str8(), put_tag(), put_timestamp(), put_vcd_padding_sector(), put_xiph_codecpriv(), put_xiph_size(), putDescr(), rm_write_video(), rtp_check_and_send_back_rr(), rtp_send_punch_packets(), rv10_write_header(), sox_write_header(), swf_write_header(), swf_write_video(), vc1test_write_header(), voc_write_packet(), voc_write_trailer(), write_escape_str(), write_header(), write_packet(), write_packet_header(), write_streamheader(), write_tags(), and write_trailer().

void avio_wb16 ( AVIOContext s,
unsigned int  val 
)

void avio_wb24 ( AVIOContext s,
unsigned int  val 
)

void avio_wb32 ( AVIOContext s,
unsigned int  val 
)

Definition at line 290 of file aviobuf.c.

Referenced by aiff_write_header(), aiff_write_trailer(), avio_wb64(), ff_avc_parse_nal_units(), ff_rtp_send_data(), ffm_write_header(), flush_packet(), flv_write_header(), flv_write_packet(), gxf_write_material_data_section(), gxf_write_media_preamble(), gxf_write_packet_header(), gxf_write_timecode_auxiliary(), gxf_write_track_description(), gxf_write_umf_media_dv(), gxf_write_umf_packet(), id3v2_put_ttag(), 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_chpl_tag(), mov_write_ctts_tag(), mov_write_d263_tag(), mov_write_dinf_tag(), mov_write_dref_tag(), mov_write_edts_tag(), mov_write_enda_tag(), mov_write_esds_tag(), mov_write_ftyp_tag(), mov_write_glbl_tag(), mov_write_gmhd_tag(), mov_write_hdlr_tag(), mov_write_hmhd_tag(), mov_write_ilst_tag(), mov_write_itunes_hdlr_tag(), mov_write_mdat_tag(), mov_write_mdhd_tag(), mov_write_mdia_tag(), mov_write_meta_tag(), mov_write_minf_tag(), mov_write_moov_tag(), mov_write_ms_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_svq3_tag(), mov_write_tapt_tag(), mov_write_tkhd_tag(), mov_write_trailer(), mov_write_trak_tag(), mov_write_tref_tag(), mov_write_trkn_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(), 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(), output_match(), put_avc_eos_tag(), put_padding_packet(), rm_write_trailer(), rm_write_video(), rtp_check_and_send_back_rr(), rtp_send_punch_packets(), rv10_write_header(), sox_write_header(), swf_write_video(), updatePacketSize(), updateSize(), write_hint_packets(), write_packet_header(), and write_trailer().

void avio_wb64 ( AVIOContext s,
uint64_t  val 
)

void avio_wl16 ( AVIOContext s,
unsigned int  val 
)

void avio_wl24 ( AVIOContext s,
unsigned int  val 
)

Definition at line 450 of file aviobuf.c.

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

void avio_wl32 ( AVIOContext s,
unsigned int  val 
)

void avio_wl64 ( AVIOContext s,
uint64_t  val 
)

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

Definition at line 158 of file aviobuf.c.

Referenced by a64_write_header(), a64_write_packet(), adts_write_packet(), aiff_write_header(), aiff_write_packet(), asf_write_header1(), asfrtp_parse_packet(), avi_write_packet(), avio_put_str(), crc_write_trailer(), daud_write_packet(), dv_write_packet(), ff_avc_parse_nal_units(), ff_flac_write_header(), ff_isom_write_avcc(), ff_mov_write_packet(), ff_raw_write_packet(), 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(), gif_image_write_header(), gif_image_write_image(), gxf_write_material_data_section(), gxf_write_mpeg_auxiliary(), gxf_write_packet(), gxf_write_track_description(), gxf_write_umf_media_description(), http_send_data(), id3v2_put_ttag(), ivf_write_header(), ivf_write_packet(), latm_parse_packet(), matroska_read_header(), md5_finish(), mkv_flush_dynbuf(), mkv_write_ass_blocks(), mkv_write_block(), mkv_write_codecprivate(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_chpl_tag(), mov_write_esds_tag(), mov_write_extradata_tag(), mov_write_glbl_tag(), mov_write_hdlr_tag(), mov_write_string_data_tag(), mov_write_subtitle_tag(), mov_write_udta_sdp(), mov_write_udta_tag(), mov_write_video_tag(), mp3_write_packet(), mp3_write_trailer(), mpegts_insert_null_packet(), mpegts_insert_pcr_only(), 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(), ogg_write_page(), output_immediate(), put_amf_string(), put_buffer(), put_ebml_binary(), put_frame(), put_guid(), put_packet(), put_str(), put_str16(), put_swf_matrix(), put_swf_rect(), put_xiph_codecpriv(), rm_write_audio(), rm_write_video(), roq_write_header(), rso_write_packet(), rtp_check_and_send_back_rr(), rtsp_cmd_describe(), rv10_write_header(), section_write_packet(), sox_write_header(), sox_write_packet(), spdif_write_packet(), svq3_parse_packet(), swf_write_header(), swf_write_video(), vc1test_write_header(), vc1test_write_packet(), voc_write_header(), voc_write_packet(), vp8_handle_packet(), write_globalinfo(), write_header(), write_hint_packets(), write_mainheader(), write_packet(), write_streamheader(), write_streaminfo(), write_trailer(), and xiph_handle_packet().

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

Definition at line 514 of file aviobuf.c.

Referenced by get_packetheader(), ogg_write_page(), put_packet(), and write_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
, a or EOF. The returned string is always 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

Definition at line 692 of file aviobuf.c.

Referenced by read_chomp_line(), read_header(), and srt_read_packet().

uint64_t ff_get_v ( AVIOContext bc  ) 

int ff_get_v_length ( uint64_t  val  ) 

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

Definition at line 408 of file aviobuf.c.

Referenced by ff_put_v(), and write_packet().

void ff_put_v ( AVIOContext bc,
uint64_t  val 
)

Put val using a variable number of bytes.

Definition at line 417 of file aviobuf.c.

Referenced by put_packet(), put_s(), put_str(), put_tt(), write_globalinfo(), write_mainheader(), write_packet(), write_streamheader(), and write_streaminfo().

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

Definition at line 144 of file aviobuf.c.

Referenced by put_nbyte(), and spdif_write_packet().

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 
)

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 606 of file aviobuf.c.

Referenced by ff_raw_read_partial_packet(), and get_partial_buffer().

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 840 of file aviobuf.c.

Referenced by av_probe_input_buffer().

static void fill_buffer ( AVIOContext s  )  [static]

Definition at line 473 of file aviobuf.c.

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

static void flush_buffer ( AVIOContext s  )  [static]

Definition at line 119 of file aviobuf.c.

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

unsigned long get_checksum ( AVIOContext s  ) 

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

Deprecated:
use avio_get_str instead

Definition at line 685 of file aviobuf.c.

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

Definition at line 527 of file aviobuf.c.

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

int init_put_byte ( 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 
)

Definition at line 78 of file aviobuf.c.

void put_flush_packet ( AVIOContext s  ) 

void put_strz ( AVIOContext s,
const char *  str 
)

Definition at line 299 of file aviobuf.c.

int url_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 765 of file aviobuf.c.

Referenced by avio_open(), and ff_rtp_chain_mux_open().

int url_feof ( AVIOContext s  ) 

feof() equivalent for AVIOContext.

Returns:
non zero if and only if end of file

Definition at line 268 of file aviobuf.c.

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

int url_ferror ( AVIOContext s  ) 

int url_fget_max_packet_size ( AVIOContext s  ) 

Deprecated:
use AVIOContext.max_packet_size directly.

Definition at line 946 of file aviobuf.c.

char* url_fgets ( AVIOContext s,
char *  buf,
int  buf_size 
)

Note:
unlike fgets, the EOL character is not returned and a whole line is parsed. return NULL if first char read was EOF

Definition at line 925 of file aviobuf.c.

URLContext* url_fileno ( AVIOContext s  ) 

Definition at line 904 of file aviobuf.c.

int url_resetbuf ( AVIOContext s,
int  flags 
)

Reset the buffer for reading or writing.

Note:
Will drop any data currently in the buffer without transmitting it.
Parameters:
flags URL_RDONLY to set up the buffer for reading, or URL_WRONLY to set up the buffer for writing.

Definition at line 818 of file aviobuf.c.

Referenced by ffio_init_context(), and url_setbufsize().

int url_setbufsize ( AVIOContext s,
int  buf_size 
)

Warning:
must be called before any I/O

Definition at line 802 of file aviobuf.c.

Referenced by av_open_input_file(), and fill_buffer().


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