libavformat/avio.h File Reference

unbuffered I/O operations More...

#include <stdint.h>
#include "libavutil/common.h"

Go to the source code of this file.

Data Structures

struct  URLContext
 URL Context. More...
struct  URLPollEntry
struct  URLProtocol
struct  ByteIOContext
 Bytestream IO Context. More...

Defines

#define URL_RDONLY   0
#define URL_WRONLY   1
#define URL_RDWR   2
#define AVSEEK_SIZE   0x10000
 Passing this as the "whence" parameter to a seek function causes it to return the filesize without seeking anywhere.
#define AVSEEK_FORCE   0x20000
 Oring this flag as into the "whence" parameter to a seek function causes it to seek by any means (like reopening and linear reading) or other normally unreasonble means that can be extreemly slow.
#define URL_EOF   (-1)

Typedefs

typedef int URLInterruptCB (void)

Functions

int url_open_protocol (URLContext **puc, struct URLProtocol *up, const char *url, int flags)
 Creates an URLContext for accessing to the resource indicated by url, and opens it using the URLProtocol up.
int url_open (URLContext **h, const char *url, int flags)
 Creates an URLContext for accessing to the resource indicated by url, and opens it.
int url_read (URLContext *h, unsigned char *buf, int size)
 Reads up to size bytes from the resource accessed by h, and stores the read bytes in buf.
int url_read_complete (URLContext *h, unsigned char *buf, int size)
 Read as many bytes as possible (up to size), calling the read function multiple times if necessary.
int url_write (URLContext *h, unsigned char *buf, int size)
int64_t url_seek (URLContext *h, int64_t pos, int whence)
 Changes the position that will be used by the next read/write operation on the resource accessed by h.
int url_close (URLContext *h)
 Closes the resource accessed by the URLContext h, and frees the memory used by it.
int url_exist (const char *url)
 Returns a non-zero value if the resource indicated by url exists, 0 otherwise.
int64_t url_filesize (URLContext *h)
int url_get_file_handle (URLContext *h)
 Return the file descriptor associated with this URL.
int url_get_max_packet_size (URLContext *h)
 Return the maximum packet size associated to packetized file handle.
void url_get_filename (URLContext *h, char *buf, int buf_size)
void url_set_interrupt_cb (URLInterruptCB *interrupt_cb)
 The callback is called in blocking functions to test regulary if asynchronous interruption is needed.
int url_poll (URLPollEntry *poll_table, int n, int timeout)
int av_url_read_pause (URLContext *h, int pause)
 Pause and resume playing - only meaningful if using a network streaming protocol (e.g.
int64_t av_url_read_seek (URLContext *h, int stream_index, int64_t timestamp, int flags)
 Seek to a given timestamp relative to some component stream.
URLProtocolav_protocol_next (URLProtocol *p)
 If protocol is NULL, returns the first registered protocol, if protocol is non-NULL, returns the next registered protocol after protocol, or NULL if protocol is the last one.
attribute_deprecated int register_protocol (URLProtocol *protocol)
int av_register_protocol (URLProtocol *protocol)
 Registers the URLProtocol protocol.
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))
void put_byte (ByteIOContext *s, int b)
void put_buffer (ByteIOContext *s, const unsigned char *buf, int size)
void put_le64 (ByteIOContext *s, uint64_t val)
void put_be64 (ByteIOContext *s, uint64_t val)
void put_le32 (ByteIOContext *s, unsigned int val)
void put_be32 (ByteIOContext *s, unsigned int val)
void put_le24 (ByteIOContext *s, unsigned int val)
void put_be24 (ByteIOContext *s, unsigned int val)
void put_le16 (ByteIOContext *s, unsigned int val)
void put_be16 (ByteIOContext *s, unsigned int val)
void put_tag (ByteIOContext *s, const char *tag)
void put_strz (ByteIOContext *s, const char *buf)
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)
int av_url_read_fpause (ByteIOContext *h, int pause)
int64_t av_url_read_fseek (ByteIOContext *h, int stream_index, int64_t timestamp, int flags)
int url_fgetc (ByteIOContext *s)
int url_fprintf (ByteIOContext *s, const char *fmt,...)
char * url_fgets (ByteIOContext *s, char *buf, int buf_size)
void put_flush_packet (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.
int get_byte (ByteIOContext *s)
unsigned int get_le24 (ByteIOContext *s)
unsigned int get_le32 (ByteIOContext *s)
uint64_t get_le64 (ByteIOContext *s)
unsigned int get_le16 (ByteIOContext *s)
char * get_strz (ByteIOContext *s, char *buf, int maxlen)
unsigned int get_be16 (ByteIOContext *s)
unsigned int get_be24 (ByteIOContext *s)
unsigned int get_be32 (ByteIOContext *s)
uint64_t get_be64 (ByteIOContext *s)
uint64_t ff_get_v (ByteIOContext *bc)
static int url_is_streamed (ByteIOContext *s)
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 *url, int flags)
 Creates and initializes a ByteIOContext for accessing the resource indicated by url.
int url_fclose (ByteIOContext *s)
URLContexturl_fileno (ByteIOContext *s)
int url_fget_max_packet_size (ByteIOContext *s)
 Return the maximum packet size associated to packetized buffered file handle.
int url_open_buf (ByteIOContext **s, uint8_t *buf, int buf_size, int flags)
int url_close_buf (ByteIOContext *s)
 return the written or read size
int url_open_dyn_buf (ByteIOContext **s)
 Open a write only memory stream.
int url_open_dyn_packet_buf (ByteIOContext **s, int max_packet_size)
 Open a write only packetized memory stream with a maximum packet size of 'max_packet_size'.
int url_close_dyn_buf (ByteIOContext *s, uint8_t **pbuffer)
 Return the written size and a pointer to the buffer.
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 udp_set_remote_url (URLContext *h, const char *uri)
 If no filename is given to av_open_input_file because you want to get the local port first, then you must call this function to set the remote server address.
int udp_get_local_port (URLContext *h)
 Return the local port used by the UDP connexion.
int udp_get_file_handle (URLContext *h)
 Return the udp file handle for select() usage to wait for several RTP streams at the same time.

Variables

URLProtocolfirst_protocol
URLInterruptCBurl_interrupt_cb


Detailed Description

unbuffered I/O operations

Warning:
This file has to be considered an internal but installed header, so it should not be directly included in your projects.

Definition in file avio.h.


Define Documentation

#define AVSEEK_FORCE   0x20000

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

This may be ignored by the seek code.

Definition at line 221 of file avio.h.

Referenced by url_fseek(), and url_seek().

#define AVSEEK_SIZE   0x10000

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

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

Definition at line 213 of file avio.h.

Referenced by file_seek(), http_seek(), url_filesize(), and url_fsize().

#define URL_EOF   (-1)

Definition at line 359 of file avio.h.

Referenced by url_fgetc().

#define URL_RDONLY   0

#define URL_RDWR   2

#define URL_WRONLY   1


Typedef Documentation

typedef int URLInterruptCB(void)

Definition at line 66 of file avio.h.


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().

URLProtocol* av_protocol_next ( URLProtocol p  ) 

If protocol is NULL, returns the first registered protocol, if protocol is non-NULL, returns the next registered protocol after protocol, or NULL if protocol is the last one.

Definition at line 53 of file avio.c.

Referenced by show_protocols().

int av_register_protocol ( URLProtocol protocol  ) 

Registers the URLProtocol protocol.

Definition at line 59 of file avio.c.

Referenced by register_protocol().

int av_url_read_fpause ( ByteIOContext h,
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 h,
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().

int av_url_read_pause ( URLContext h,
int  pause 
)

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

MMS).

Parameters:
pause 1 for pause, 0 for resume

Definition at line 277 of file avio.c.

int64_t av_url_read_seek ( URLContext h,
int  stream_index,
int64_t  timestamp,
int  flags 
)

Seek to a given timestamp relative to some component stream.

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

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

Definition at line 284 of file avio.c.

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().

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 *  buf 
)

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().

attribute_deprecated int register_protocol ( URLProtocol protocol  ) 

Deprecated:
Use av_register_protocol() instead.

Definition at line 70 of file avio.c.

int udp_get_file_handle ( URLContext h  ) 

Return the udp file handle for select() usage to wait for several RTP streams at the same time.

Parameters:
h media file context

Definition at line 300 of file udp.c.

int udp_get_local_port ( URLContext h  ) 

Return the local port used by the UDP connexion.

Parameters:
s1 media file context
Returns:
the local port number

Definition at line 286 of file udp.c.

Referenced by rtp_get_local_port(), rtp_get_local_rtcp_port(), rtp_get_local_rtp_port(), and rtp_open().

int udp_set_remote_url ( URLContext h,
const char *  uri 
)

If no filename is given to av_open_input_file because you want to get the local port first, then you must call this function to set the remote server address.

url syntax: udp://host:port[?option=val...] option: 'ttl=n' : set the ttl value (for multicast only) 'localport=n' : set the local port 'pkt_size=n' : set max packet size 'reuse=1' : enable reusing the socket

Parameters:
s1 media file context
uri of the remote server
Returns:
zero if no error.

Definition at line 263 of file udp.c.

Referenced by rtp_set_remote_url(), and udp_open().

int url_close ( URLContext h  ) 

Closes the resource accessed by the URLContext h, and frees the memory used by it.

Returns:
a negative value if an error condition occurred, 0 otherwise

Definition at line 209 of file avio.c.

Referenced by close_connection(), concat_close(), concat_open(), ff_rtsp_close_streams(), gopher_close(), http_close(), http_open_cnx(), http_seek(), rtmp_close(), rtp_close(), rtp_new_av_stream(), rtp_open(), rtsp_write_close(), rtsp_write_header(), url_exist(), url_fclose(), and url_fopen().

int url_close_buf ( ByteIOContext s  ) 

return the written or read size

int url_close_dyn_buf ( ByteIOContext s,
uint8_t **  pbuffer 
)

int url_exist ( const char *  url  ) 

Returns a non-zero value if the resource indicated by url exists, 0 otherwise.

Definition at line 223 of file avio.c.

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

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.

int64_t url_filesize ( URLContext h  ) 

Definition at line 232 of file avio.c.

Referenced by concat_open().

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().

int url_fprintf ( ByteIOContext s,
const char *  fmt,
  ... 
)

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_get_file_handle ( URLContext h  ) 

Return the file descriptor associated with this URL.

For RTP, this will return only the RTP file descriptor, not the RTCP file descriptor. To get both, use rtp_get_file_handles().

Returns:
the file descriptor associated with this URL, or <0 on error.

Definition at line 247 of file avio.c.

Referenced by http_get_file_handle(), rtp_open(), and rtsp_write_packet().

void url_get_filename ( URLContext h,
char *  buf,
int  buf_size 
)

Definition at line 259 of file avio.c.

int url_get_max_packet_size ( URLContext h  ) 

Return the maximum packet size associated to packetized file handle.

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

Parameters:
h file handle
Returns:
maximum packet size in bytes

Definition at line 254 of file avio.c.

Referenced by http_prepare_data(), rtmp_open(), rtp_new_av_stream(), rtp_open(), and url_fdopen().

static int url_is_streamed ( ByteIOContext s  )  [inline, static]

int url_open ( URLContext **  h,
const char *  url,
int  flags 
)

Creates an URLContext for accessing to the resource indicated by url, and opens it.

Parameters:
puc pointer to the location where, in case of success, the function puts the pointer to the created URLContext
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 121 of file avio.c.

Referenced by concat_open(), gopher_open(), http_open_cnx(), rtmp_open(), rtp_new_av_stream(), rtp_open(), sdp_read_header(), url_exist(), and url_fopen().

int url_open_buf ( ByteIOContext **  s,
uint8_t *  buf,
int  buf_size,
int  flags 
)

Referenced by http_receive_data().

int url_open_dyn_buf ( ByteIOContext **  s  ) 

int url_open_dyn_packet_buf ( ByteIOContext **  s,
int  max_packet_size 
)

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

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

Parameters:
s new IO context
max_packet_size maximum packet size (must be > 0)
Returns:
zero if no error.

Referenced by ff_mov_add_hinted_packet(), ff_mov_init_hinting(), http_prepare_data(), rtp_new_av_stream(), rtsp_rtp_mux_open(), and tcp_write_packet().

int url_open_protocol ( URLContext **  puc,
struct URLProtocol up,
const char *  url,
int  flags 
)

Creates an URLContext for accessing to the resource indicated by url, and opens it using the URLProtocol up.

Parameters:
puc pointer to the location where, in case of success, the function puts the pointer to the created URLContext
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 76 of file avio.c.

Referenced by url_open().

int url_poll ( URLPollEntry poll_table,
int  n,
int  timeout 
)

int url_read ( URLContext h,
unsigned char *  buf,
int  size 
)

Reads up to size bytes from the resource accessed by h, and stores the read bytes in buf.

Returns:
The number of bytes actually read, or a negative value corresponding to an AVERROR code in case of error. A value of zero indicates that it is not possible to read more from the accessed resource (except if the value of the size argument is also zero).

Definition at line 155 of file avio.c.

Referenced by concat_read(), ff_rtmp_packet_read(), gopher_read(), http_getc(), http_read(), url_fdopen(), and url_read_complete().

int url_read_complete ( URLContext h,
unsigned char *  buf,
int  size 
)

Read as many bytes as possible (up to size), calling the read function multiple times if necessary.

Will also retry if the read function returns AVERROR(EAGAIN). This makes special short-read handling in applications unnecessary, if the return value is < size then it is certain there was either an error or the end of file was reached.

Definition at line 164 of file avio.c.

Referenced by ff_rtmp_packet_read(), and rtmp_handshake().

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().

int64_t url_seek ( URLContext h,
int64_t  pos,
int  whence 
)

Changes the position that will be used by the next read/write operation on the resource accessed by h.

Parameters:
pos specifies the new position to set
whence specifies how pos should be interpreted, it must be one of SEEK_SET (seek from the beginning), SEEK_CUR (seek from the current position), SEEK_END (seek from the end), or AVSEEK_SIZE (return the filesize of the requested resource, pos is ignored).
Returns:
a negative value corresponding to an AVERROR code in case of failure, or the resulting file position, measured in bytes from the beginning of the file. You can use this feature together with SEEK_CUR to read the current file position.

Definition at line 199 of file avio.c.

Referenced by concat_read(), concat_seek(), url_fdopen(), url_filesize(), and url_open_protocol().

void url_set_interrupt_cb ( URLInterruptCB interrupt_cb  ) 

The callback is called in blocking functions to test regulary if asynchronous interruption is needed.

AVERROR(EINTR) is returned in this case by the interrupted function. 'NULL' means no interrupt callback is given.

Definition at line 270 of file avio.c.

Referenced by av_transcode(), decode_thread(), and main().

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().

int url_write ( URLContext h,
unsigned char *  buf,
int  size 
)


Variable Documentation

Definition at line 50 of file avio.c.


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