libavformat/aviobuf.c File Reference

#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "avio.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.

Functions

static void fill_buffer (ByteIOContext *s)
int init_put_byte (ByteIOContext *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))
ByteIOContextav_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))
static void flush_buffer (ByteIOContext *s)
void put_byte (ByteIOContext *s, int b)
void put_buffer (ByteIOContext *s, const unsigned char *buf, int size)
void put_flush_packet (ByteIOContext *s)
int64_t url_fseek (ByteIOContext *s, int64_t offset, int whence)
 fseek() equivalent for ByteIOContext.
void url_fskip (ByteIOContext *s, int64_t offset)
 Skip given number of bytes forward.
int64_t url_ftell (ByteIOContext *s)
 ftell() equivalent for ByteIOContext.
int64_t url_fsize (ByteIOContext *s)
 Gets the filesize.
int url_feof (ByteIOContext *s)
 feof() equivalent for ByteIOContext.
int url_ferror (ByteIOContext *s)
void put_le32 (ByteIOContext *s, unsigned int val)
void put_be32 (ByteIOContext *s, unsigned int val)
void put_strz (ByteIOContext *s, const char *str)
void put_le64 (ByteIOContext *s, uint64_t val)
void put_be64 (ByteIOContext *s, uint64_t val)
void put_le16 (ByteIOContext *s, unsigned int val)
void put_be16 (ByteIOContext *s, unsigned int val)
void put_le24 (ByteIOContext *s, unsigned int val)
void put_be24 (ByteIOContext *s, unsigned int val)
void put_tag (ByteIOContext *s, const char *tag)
unsigned long ff_crc04C11DB7_update (unsigned long checksum, const uint8_t *buf, unsigned int len)
unsigned long get_checksum (ByteIOContext *s)
void init_checksum (ByteIOContext *s, unsigned long(*update_checksum)(unsigned long c, const uint8_t *p, unsigned int len), unsigned long checksum)
int get_byte (ByteIOContext *s)
int url_fgetc (ByteIOContext *s)
int get_buffer (ByteIOContext *s, unsigned char *buf, int size)
 Reads size bytes from ByteIOContext into buf.
int get_partial_buffer (ByteIOContext *s, unsigned char *buf, int size)
 Reads size bytes from ByteIOContext into buf.
unsigned int get_le16 (ByteIOContext *s)
unsigned int get_le24 (ByteIOContext *s)
unsigned int get_le32 (ByteIOContext *s)
uint64_t get_le64 (ByteIOContext *s)
unsigned int get_be16 (ByteIOContext *s)
unsigned int get_be24 (ByteIOContext *s)
unsigned int get_be32 (ByteIOContext *s)
char * get_strz (ByteIOContext *s, char *buf, int maxlen)
uint64_t get_be64 (ByteIOContext *s)
uint64_t ff_get_v (ByteIOContext *bc)
int url_fdopen (ByteIOContext **s, URLContext *h)
 Creates and initializes a ByteIOContext for accessing the resource referenced by the URLContext h.
int url_setbufsize (ByteIOContext *s, int buf_size)
int url_resetbuf (ByteIOContext *s, int flags)
 Reset the buffer for reading or writing.
int ff_rewind_with_probe_data (ByteIOContext *s, unsigned char *buf, int buf_size)
 Rewinds the ByteIOContext using the specified buffer containing the first buf_size bytes of the file.
int url_fopen (ByteIOContext **s, const char *filename, int flags)
 Creates and initializes a ByteIOContext for accessing the resource indicated by url.
int url_fclose (ByteIOContext *s)
URLContexturl_fileno (ByteIOContext *s)
char * url_fgets (ByteIOContext *s, char *buf, int buf_size)
int url_fget_max_packet_size (ByteIOContext *s)
 Return the maximum packet size associated to packetized buffered file handle.
int av_url_read_fpause (ByteIOContext *s, int pause)
int64_t av_url_read_fseek (ByteIOContext *s, int stream_index, int64_t timestamp, int flags)


Define Documentation

#define IO_BUFFER_SIZE   32768

Definition at line 28 of file aviobuf.c.

Referenced by fill_buffer(), and url_fdopen().

#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 35 of file aviobuf.c.

Referenced by url_fseek().


Function Documentation

ByteIOContext* 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 75 of file aviobuf.c.

Referenced by rdt_parse_packet().

int av_url_read_fpause ( ByteIOContext s,
int  pause 
)

Definition at line 741 of file aviobuf.c.

Referenced by av_read_pause(), and av_read_play().

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

Definition at line 748 of file aviobuf.c.

Referenced by asf_read_seek(), and flv_read_seek().

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

Definition at line 348 of file aviobuf.c.

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

uint64_t ff_get_v ( ByteIOContext bc  ) 

int ff_rewind_with_probe_data ( ByteIOContext s,
unsigned char *  buf,
int  buf_size 
)

Rewinds the ByteIOContext 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

This function is NOT part of the public API

Parameters:
s The read-only ByteIOContext 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 634 of file aviobuf.c.

Referenced by ff_probe_input_buffer().

static void fill_buffer ( ByteIOContext s  )  [static]

Definition at line 305 of file aviobuf.c.

Referenced by get_buffer(), get_byte(), get_partial_buffer(), url_fgetc(), and url_fseek().

static void flush_buffer ( ByteIOContext s  )  [static]

Definition at line 90 of file aviobuf.c.

Referenced by put_buffer(), put_byte(), put_flush_packet(), and url_fseek().

unsigned int get_be16 ( ByteIOContext s  ) 

unsigned int get_be24 ( ByteIOContext s  ) 

unsigned int get_be32 ( ByteIOContext s  ) 

Definition at line 516 of file aviobuf.c.

Referenced by aiff_read_header(), amf_parse_object(), au_read_header(), decode_frame_header(), dv_read_header(), dxa_read_header(), ea_read_packet(), ebml_read_float(), ff_id3v2_parse(), ff_mov_read_esds(), ff_rm_read_mdpr_codecdata(), ffm_read_header(), flv_read_header(), flv_read_packet(), get_aiff_header(), get_be64(), 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(), 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(), 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 get_be64 ( ByteIOContext s  ) 

int get_buffer ( ByteIOContext s,
unsigned char *  buf,
int  size 
)

Reads size bytes from ByteIOContext into buf.

Returns:
number of bytes read or AVERROR

Definition at line 399 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_header(), av_get_packet(), av_read(), avi_read_header(), 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_id3v1_read(), ff_id3v2_parse(), ff_id3v2_read(), ff_mov_read_esds(), ff_probe_input_buffer(), ff_rm_parse_packet(), 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_codec_data(), get_guid(), get_meta(), get_pts(), get_riff(), get_str(), idcin_read_header(), idcin_read_packet(), iff_read_header(), iff_read_packet(), img_read_packet(), ipmovie_read_header(), klv_read_packet(), load_ipmovie_packet(), mmf_read_packet(), mov_read_chapters(), 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(), 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(), nsv_parse_NSVf_header(), nuv_header(), nuv_packet(), ogg_read_page(), oma_read_header(), 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(), sdp_read_header(), seq_fill_buffer(), seq_read_packet(), siff_read_packet(), smacker_read_header(), smacker_read_packet(), sox_read_header(), str_read_header(), str_read_packet(), swf_read_packet(), 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(), wv_read_block_header(), wv_read_packet(), yop_read_header(), and yop_read_packet().

int get_byte ( ByteIOContext s  ) 

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

Definition at line 373 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(), asfrtp_parse_packet(), avi_read_header(), 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(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_get_v(), ff_mov_read_esds(), ff_mp4_read_descr_len(), 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_be16(), get_be24(), get_codec_data(), get_le16(), get_le24(), get_len(), get_line(), get_pts(), get_size(), get_str(), get_str8(), get_strl(), get_strz(), 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_descr(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_header(), mpegps_read_packet(), mpegps_read_pes_header(), 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(), 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(), swf_read_header(), swf_read_packet(), sync(), tmv_read_header(), vc1t_read_header(), vc1t_read_packet(), vid_read_packet(), voc_get_packet(), wv_read_block_header(), yop_read_header(), yuv4_read_header(), and yuv4_read_packet().

unsigned long get_checksum ( ByteIOContext s  ) 

unsigned int get_le16 ( ByteIOContext s  ) 

Definition at line 469 of file aviobuf.c.

unsigned int get_le24 ( ByteIOContext s  ) 

unsigned int get_le32 ( ByteIOContext s  ) 

Definition at line 485 of file aviobuf.c.

uint64_t get_le64 ( ByteIOContext s  ) 

int get_partial_buffer ( ByteIOContext s,
unsigned char *  buf,
int  size 
)

Reads size bytes from ByteIOContext 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 446 of file aviobuf.c.

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

Definition at line 524 of file aviobuf.c.

Referenced by ffm_read_header(), and read_info_chunk().

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

Definition at line 361 of file aviobuf.c.

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

int init_put_byte ( ByteIOContext 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 
)

void put_be16 ( ByteIOContext s,
unsigned int  val 
)

void put_be24 ( ByteIOContext s,
unsigned int  val 
)

void put_be32 ( ByteIOContext s,
unsigned int  val 
)

Definition at line 244 of file aviobuf.c.

Referenced by aiff_write_header(), aiff_write_trailer(), 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(), 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_mvhd_tag(), mov_write_nmhd_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_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_be64(), 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 put_be64 ( ByteIOContext s,
uint64_t  val 
)

void put_buffer ( ByteIOContext s,
const unsigned char *  buf,
int  size 
)

Definition at line 115 of file aviobuf.c.

Referenced by adts_write_packet(), aiff_write_header(), aiff_write_packet(), asf_write_header1(), asfrtp_parse_packet(), avi_write_packet(), crc_write_trailer(), daud_write_packet(), ff_avc_parse_nal_units(), ff_flac_write_header(), ff_isom_write_avcc(), ff_mov_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_mpeg_auxiliary(), gxf_write_packet(), gxf_write_umf_media_description(), http_send_data(), matroska_read_header(), 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(), 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_ebml_binary(), put_frame(), put_guid(), put_packet(), put_str(), put_str16(), put_strz(), put_swf_matrix(), put_swf_rect(), put_xiph_codecpriv(), rm_write_audio(), rm_write_video(), rtp_check_and_send_back_rr(), rtsp_cmd_describe(), section_write_packet(), sox_write_header(), sox_write_packet(), spdif_write_packet(), swf_write_header(), swf_write_video(), vc1test_write_header(), vc1test_write_packet(), voc_write_header(), voc_write_packet(), write_globalinfo(), write_header(), write_hint_packets(), write_mainheader(), write_packet(), write_streamheader(), write_streaminfo(), write_trailer(), and xiph_handle_packet().

void put_byte ( ByteIOContext s,
int  b 
)

Definition at line 108 of file aviobuf.c.

Referenced by aiff_write_trailer(), asf_write_header1(), avi_write_header(), avi_write_info_tag(), avi_write_ix(), avi_write_packet(), ff_isom_write_avcc(), 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(), 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_be16(), put_be24(), put_be32(), put_ebml_id(), put_ebml_num(), put_ebml_size_unknown(), put_ebml_uint(), put_ebml_void(), put_le16(), put_le24(), put_le32(), put_padding_packet(), put_payload_header(), put_payload_parsing_info(), put_str(), put_str8(), put_strz(), put_tag(), put_timestamp(), put_v(), 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_header(), write_packet(), write_packet_header(), write_streamheader(), and write_trailer().

void put_flush_packet ( ByteIOContext s  ) 

void put_le16 ( ByteIOContext s,
unsigned int  val 
)

void put_le24 ( ByteIOContext s,
unsigned int  val 
)

Definition at line 284 of file aviobuf.c.

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

void put_le32 ( ByteIOContext s,
unsigned int  val 
)

void put_le64 ( ByteIOContext s,
uint64_t  val 
)

void put_strz ( ByteIOContext s,
const char *  str 
)

Definition at line 252 of file aviobuf.c.

Referenced by avi_write_info_tag(), and ffm_write_header().

void put_tag ( ByteIOContext s,
const char *  tag 
)

Definition at line 296 of file aviobuf.c.

Referenced by aiff_write_header(), avi_start_new_riff(), avi_write_header(), avi_write_idx1(), avi_write_info_tag(), avi_write_ix(), avi_write_trailer(), flv_write_header(), gif_image_write_header(), gxf_write_material_data_section(), gxf_write_track_description(), mov_write_3gp_udta_tag(), mov_write_ac3_tag(), mov_write_amr_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_mvhd_tag(), mov_write_nmhd_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_svq3_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(), ogg_write_page(), rv10_write_header(), sox_write_header(), swf_write_header(), and swf_write_video().

int url_fclose ( ByteIOContext s  ) 

int url_fdopen ( ByteIOContext **  s,
URLContext h 
)

Creates and initializes a ByteIOContext for accessing the resource referenced by the URLContext h.

Note:
When the URLContext h has been opened in read+write mode, the ByteIOContext can be used only for writing.
Parameters:
s Used to return the pointer to the created ByteIOContext. 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 558 of file aviobuf.c.

Referenced by rtsp_rtp_mux_open(), and url_fopen().

int url_feof ( ByteIOContext s  ) 

int url_ferror ( ByteIOContext s  ) 

int url_fget_max_packet_size ( ByteIOContext s  ) 

Return the maximum packet size associated to packetized buffered file handle.

If the file is not packetized (stream like http or file on disk), then 0 is returned.

Parameters:
s buffered file handle
Returns:
maximum packet size in bytes

Definition at line 736 of file aviobuf.c.

Referenced by rtp_write_header().

int url_fgetc ( ByteIOContext s  ) 

Note:
return URL_EOF (-1) if EOF

Definition at line 386 of file aviobuf.c.

Referenced by mpegts_resync(), ogg_read_page(), and url_fgets().

char* url_fgets ( ByteIOContext 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 715 of file aviobuf.c.

URLContext* url_fileno ( ByteIOContext s  ) 

Definition at line 695 of file aviobuf.c.

int url_fopen ( ByteIOContext **  s,
const char *  url,
int  flags 
)

Creates and initializes a ByteIOContext for accessing the resource indicated by url.

Note:
When the resource indicated by url has been opened in read+write mode, the ByteIOContext can be used only for writing.
Parameters:
s Used to return the pointer to the created ByteIOContext. 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 670 of file aviobuf.c.

Referenced by av_open_input_file(), build_feed_streams(), img_read_packet(), main(), mov_open_dref(), and opt_output_file().

int64_t url_fseek ( ByteIOContext s,
int64_t  offset,
int  whence 
)

fseek() equivalent for ByteIOContext.

Returns:
new position or AVERROR.

Definition at line 136 of file aviobuf.c.

Referenced by adjust_write_index(), aiff_read_header(), aiff_write_trailer(), ape_read_header(), ape_read_packet(), asf_build_simple_index(), asf_read_header(), asf_read_pts(), asf_read_seek(), asf_write_header1(), asf_write_trailer(), 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_packet(), avi_read_seek(), avi_write_counters(), avi_write_ix(), avi_write_trailer(), bfi_read_header(), dv_read_header(), dv_read_seek(), dxa_read_header(), dxa_read_packet(), ea_read_packet(), ebml_parse_elem(), end_ebml_master(), end_header(), ff_ape_parse_tag(), ff_asf_get_packet(), ff_gen_syncpoint_search(), ff_id3v1_read(), ff_id3v2_parse(), ff_id3v2_read(), ff_restore_parser_state(), 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(), guess_ni_flag(), gxf_read_timestamp(), gxf_resync_media(), gxf_seek(), gxf_write_trailer(), gxf_write_umf_media_description(), idcin_read_packet(), iff_read_header(), ipmovie_read_header(), load_ipmovie_packet(), matroska_execute_seekhead(), matroska_read_seek(), mkv_write_seekhead(), mkv_write_trailer(), mmf_read_header(), mov_read_chapters(), mov_read_dref(), mov_read_meta(), mov_write_stsc_tag(), mov_write_stss_tag(), mov_write_trailer(), mpc8_handle_chunk(), mpc8_parse_seektable(), mpc8_read_seek(), mpc_read_header(), mpc_read_packet(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), mpegts_get_pcr(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_resync(), mtv_read_header(), mxf_read_header(), mxf_read_local_tags(), mxf_read_seek(), mxf_write_footer(), mxf_write_partition(), nsv_parse_NSVf_header(), nsv_read_seek(), nut_read_header(), nut_read_packet(), ogg_get_length(), ogg_read_timestamp(), ogg_restore(), ogg_update_checksum(), oma_read_header(), process_ea_header(), process_ipmovie_chunk(), put_swf_end_tag(), pva_read_timestamp(), r3d_read_header(), r3d_seek(), rdt_load_mdpr(), read_braindead_odml_indx(), read_frame(), read_header(), read_packet(), read_seek(), rl2_read_packet(), rm_read_dts(), rm_read_header(), rm_read_index(), rm_write_trailer(), roq_read_packet(), rpl_read_header(), rpl_read_packet(), seq_fill_buffer(), seq_init_frame_buffers(), seq_parse_frame_data(), seq_read_packet(), skip_reserved(), smacker_read_packet(), sox_write_trailer(), str_read_header(), swf_write_trailer(), thp_read_header(), thp_read_packet(), tmv_read_seek(), tta_read_header(), tta_read_seek(), updatePacketSize(), updateSize(), url_fskip(), url_ftell(), vc1test_write_trailer(), vid_read_header(), vid_read_packet(), vmd_read_header(), vmd_read_packet(), vqf_read_seek(), wc3_read_header(), wc3_read_packet(), write_hint_packets(), wsvqa_read_header(), wsvqa_read_packet(), wv_read_block_header(), wv_read_header(), wv_read_seek(), yop_read_header(), and yop_read_seek().

int64_t url_fsize ( ByteIOContext s  ) 

void url_fskip ( ByteIOContext s,
int64_t  offset 
)

Skip given number of bytes forward.

Parameters:
offset number of bytes

Definition at line 193 of file aviobuf.c.

Referenced by aea_read_header(), aiff_read_header(), amf_get_string(), amf_parse_object(), ape_read_header(), asf_read_frame_header(), asf_read_header(), asfrtp_parse_packet(), avi_read_header(), avi_write_ix(), avi_write_trailer(), avs_read_header(), avs_read_packet(), bfi_read_header(), cdata_read_header(), decode_frame(), dxa_read_header(), ea_read_packet(), ff_asf_parse_packet(), ff_id3v2_parse(), ff_rm_read_mdpr_codecdata(), flv_read_header(), flv_read_packet(), get_codec_data(), get_dts(), get_meta(), get_str16_nolen(), get_tag(), gxf_header(), gxf_material_tags(), gxf_packet(), gxf_read_index(), gxf_track_tags(), iff_read_header(), lmlm4_read_packet(), matroska_read_header(), mov_read_default(), mov_read_dref(), mov_read_mvhd(), mov_read_strf(), mov_read_stsd(), mov_read_wave(), mov_read_wide(), mpc8_handle_chunk(), mpc8_read_header(), mpc_read_header(), mpegps_psm_parse(), mpegps_read_dts(), mpegps_read_packet(), mpegps_read_pes_header(), msnwc_tcp_read_packet(), mtv_read_header(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_read_content_storage(), mxf_read_generic_descriptor(), mxf_read_header(), mxf_read_material_package(), mxf_read_packet(), mxf_read_sequence(), mxf_read_source_clip(), mxf_read_source_package(), nc_read_packet(), nsv_read_chunk(), nuv_header(), nuv_packet(), process_audio_header_eacs(), process_ea_header(), process_video_header_mdec(), process_video_header_vp6(), qcp_read_header(), qcp_read_packet(), r3d_read_packet(), r3d_read_red1(), r3d_read_reos(), rdt_load_mdpr(), read_header(), read_kuki_chunk(), read_packet(), read_part_of_packet(), rl2_read_header(), rm_read_audio_stream_info(), rm_read_dts(), rm_read_header(), rm_read_index(), siff_parse_soun(), siff_parse_vbv1(), siff_read_header(), sox_read_header(), swf_read_header(), swf_read_packet(), sync(), tmv_read_packet(), tta_read_header(), txd_read_packet(), vc1t_read_header(), voc_get_packet(), voc_read_header(), vqf_read_header(), wv_read_block_header(), xa_read_header(), yop_read_header(), and yop_read_packet().

int64_t url_ftell ( ByteIOContext s  ) 

ftell() equivalent for ByteIOContext.

Returns:
position or AVERROR.

Definition at line 198 of file aviobuf.c.

Referenced by adjust_write_index(), aiff_read_header(), aiff_read_packet(), aiff_write_header(), aiff_write_trailer(), amf_parse_object(), amr_read_packet(), asf_build_simple_index(), asf_read_header(), asf_write_header1(), asf_write_trailer(), asfrtp_parse_packet(), av_find_stream_info(), av_get_packet(), av_open_input_stream(), av_transcode(), avi_load_index(), avi_read_header(), avi_read_info(), avi_write_counters(), avi_write_header(), avi_write_ix(), avi_write_packet(), avi_write_trailer(), avs_read_audio_packet(), decode_frame(), decode_frame_header(), decode_info_header(), decode_main_header(), decode_stream_header(), decode_syncpoint(), dv_read_header(), dxa_read_header(), dxa_read_packet(), ebml_level_end(), ebml_parse_elem(), ebml_read_binary(), ebml_read_master(), ebml_read_num(), end_ebml_master(), end_header(), event_loop(), ff_asf_get_packet(), ff_asf_parse_packet(), ff_id3v2_parse(), ff_mov_write_packet(), ff_rm_read_mdpr_codecdata(), ff_store_parser_state(), ff_wms_parse_sdp_a_line(), ffm_is_avail_data(), ffm_read_data(), ffm_read_header(), ffm_read_packet(), ffm_write_header(), film_read_packet(), find_and_decode_index(), find_startcode(), flac_write_trailer(), flic_read_packet(), flush_packet(), flv_read_packet(), flv_write_header(), flv_write_trailer(), fourxm_read_packet(), get_riff(), guess_ni_flag(), gxf_read_timestamp(), gxf_resync_media(), gxf_write_eos_packet(), gxf_write_flt_packet(), gxf_write_map_packet(), gxf_write_material_data_section(), gxf_write_packet(), gxf_write_track_description(), gxf_write_track_description_section(), gxf_write_trailer(), gxf_write_umf_media_description(), gxf_write_umf_packet(), gxf_write_umf_track_description(), handle_packet(), iff_read_header(), ipmovie_read_header(), iss_read_header(), iss_read_packet(), klv_read_packet(), matroska_execute_seekhead(), matroska_parse_cluster(), mkv_start_seekhead(), mkv_write_ass_blocks(), mkv_write_block(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet(), mkv_write_seekhead(), mkv_write_tracks(), mkv_write_trailer(), mov_read_chapters(), mov_read_default(), mov_read_dref(), mov_read_header(), mov_read_moof(), mov_read_packet(), mov_read_stsd(), mov_write_3gp_udta_tag(), mov_write_audio_tag(), mov_write_avcc_tag(), mov_write_chpl_tag(), mov_write_dinf_tag(), mov_write_esds_tag(), mov_write_ftyp_tag(), mov_write_hdlr_tag(), mov_write_ilst_tag(), mov_write_mdat_tag(), mov_write_mdia_tag(), mov_write_meta_tag(), mov_write_minf_tag(), mov_write_moov_tag(), mov_write_rtp_tag(), mov_write_stbl_tag(), mov_write_stco_tag(), mov_write_string_tag(), mov_write_stsc_tag(), mov_write_stsd_tag(), mov_write_stss_tag(), mov_write_stsz_tag(), mov_write_subtitle_tag(), mov_write_trailer(), mov_write_trak_tag(), mov_write_uuidusmt_tag(), mov_write_video_tag(), mov_write_wave_tag(), mpc8_get_chunk_header(), mpc8_handle_chunk(), mpc8_read_header(), mpc8_read_packet(), mpc_read_header(), mpc_read_packet(), mpegps_read_pes_header(), mpegts_raw_read_packet(), mpegts_read_header(), mpegts_read_packet(), mtv_read_packet(), mxf_decrypt_triplet(), mxf_read_local_tags(), mxf_write_d10_video_packet(), mxf_write_footer(), mxf_write_klv_fill(), mxf_write_partition(), mxf_write_random_index_pack(), nsv_parse_NSVf_header(), nsv_resync(), nut_read_header(), nut_read_packet(), nuv_packet(), ogg_read_page(), ogg_read_timestamp(), ogg_save(), ogg_update_checksum(), ogg_write_page(), print_report(), process_ea_header(), process_ipmovie_chunk(), put_ebml_void(), put_header(), put_payload_parsing_info(), put_swf_end_tag(), put_swf_tag(), pva_read_timestamp(), qcp_read_packet(), r3d_read_header(), r3d_read_reda(), r3d_read_redv(), rdt_parse_packet(), read_atom(), read_braindead_odml_indx(), read_frame(), read_header(), read_kuki_chunk(), read_packet(), read_pakt_chunk(), read_part_of_packet(), read_seek(), rm_assemble_video_frame(), rm_read_audio_stream_info(), rm_read_header(), rm_read_index(), rm_read_packet(), roq_read_packet(), skip_reserved(), smacker_read_header(), smacker_read_packet(), sox_write_trailer(), start_ebml_master(), str_read_packet(), swf_read_packet(), swf_write_header(), swf_write_trailer(), swf_write_video(), sync(), tta_read_header(), updatePacketSize(), updateSize(), vmd_read_packet(), voc_get_packet(), vqf_read_packet(), write_hint_packets(), write_packet(), wv_read_block_header(), wv_read_header(), wv_read_seek(), and yop_read_packet().

int url_resetbuf ( ByteIOContext 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 611 of file aviobuf.c.

Referenced by init_put_byte(), and url_setbufsize().

int url_setbufsize ( ByteIOContext s,
int  buf_size 
)

Warning:
must be called before any I/O

Definition at line 595 of file aviobuf.c.

Referenced by av_open_input_file(), and fill_buffer().


Generated on Fri Oct 26 02:36:54 2012 for FFmpeg by  doxygen 1.5.8