Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

c3ca1 4.35%
4386f 6.52%
c5ccb 75.00%
26bdd 8.70%
8473c 1.09%
2a5c4 1.09%
d1b49 1.09%
ef72e 1.09%
60416 1.09%
(Note, Valve publishes each variation of this file with the same version, but the hashes are unique.)

Relationships


PE structurePE file structure

Show functions
Import table
avcodec-53.dll
av_destruct_packet, av_dup_packet, av_fast_malloc, av_fast_realloc, av_free_packet, av_get_bits_per_sample, av_get_codec_tag_string, av_grow_packet, av_init_packet, av_log_ask_for_sample, av_new_packet, av_packet_merge_side_data, av_parser_close, av_parser_init, av_parser_parse2, av_shrink_packet, av_xiphlacing, avcodec_alloc_context3, avcodec_close, avcodec_decode_audio3, avcodec_decode_video2, avcodec_find_decoder, avcodec_get_frame_defaults, avcodec_open2, avcodec_pix_fmt_to_codec_tag, avcodec_register_all, avcodec_set_dimensions, avcodec_string, ff_find_pix_fmt, ff_mpa_freq_tab, ff_mpeg4audio_get_config, ff_mpeg4audio_sample_rates, ff_raw_pix_fmt_tags, ff_toupper4
avutil-51.dll
av_compare_mod, av_compare_ts, av_crc, av_crc_get_table, av_d2q, av_dict_copy, av_dict_free, av_dict_get, av_dict_set, av_dynarray_add, av_find_info_tag, av_free, av_freep, av_gcd, av_get_pix_fmt_name, av_int2dbl, av_int2flt, av_log, av_malloc, av_mallocz, av_opt_find, av_opt_free, av_opt_set_defaults, av_opt_set_dict, av_parse_time, av_realloc, av_reduce, av_rescale, av_rescale_q, av_rescale_rnd, av_strdup, av_strlcat, av_strlcatf, av_strlcpy, av_strstart, ff_log2_tab
kernel32.dll
DeleteCriticalSection, EnterCriticalSection, FreeLibrary, GetLastError, GetModuleHandleA, GetProcAddress, GetSystemTimeAsFileTime, InitializeCriticalSection, InterlockedExchange, IsDBCSLeadByteEx, LeaveCriticalSection, LoadLibraryA, MultiByteToWideChar, Sleep, TlsGetValue, VirtualProtect, VirtualQuery, WideCharToMultiByte
msvcrt.dll
DllMain
Export table
_get_output_format
_nm__ff_log2_tab
_nm__ff_mpa_freq_tab
_nm__ff_mpeg4audio_sample_rates
_nm__ff_raw_pix_fmt_tags
av_add_index_entry
av_alloc_put_byte
av_append_packet
av_close_input_file
av_close_input_stream
av_codec_get_id
av_codec_get_tag
av_demuxer_open
av_dump_format
av_filename_number_test
av_find_best_stream
av_find_default_stream_index
av_find_input_format
av_find_stream_info
av_gen_search
av_get_frame_filename
av_get_output_timestamp
av_get_packet
av_gettime
av_guess_codec
av_guess_format
av_hex_dump
av_hex_dump_log
av_iformat_next
av_index_search_timestamp
av_interleave_packet_per_dts
av_interleaved_write_frame
av_match_ext
av_metadata_conv
av_metadata_copy
av_metadata_free
av_metadata_get
av_metadata_set2
av_new_program
av_new_stream
av_oformat_next
av_open_input_file
av_open_input_stream
av_pkt_dump
av_pkt_dump_log
av_pkt_dump_log2
av_pkt_dump2
av_probe_input_buffer
av_probe_input_format
av_probe_input_format2
av_probe_input_format3
av_protocol_next
av_read_frame
av_read_packet
av_read_pause
av_read_play
av_register_all
av_register_input_format
av_register_output_format
av_register_protocol2
av_sdp_create
av_seek_frame
av_seek_frame_binary
av_set_parameters
av_set_pts_info
av_update_cur_dts
av_url_read_fpause
av_url_read_fseek
av_url_read_pause
av_url_read_seek
av_url_split
av_write_frame
av_write_header
av_write_trailer
avf_sdp_create
avformat_alloc_context
avformat_alloc_output_context
avformat_alloc_output_context2
avformat_configuration
avformat_find_stream_info
avformat_free_context
avformat_license
avformat_open_input
avformat_seek_file
avformat_version
avformat_write_header
avio_alloc_context
avio_check
avio_close
avio_close_dyn_buf
avio_enum_protocols
avio_flush
avio_get_str
avio_get_str16be
avio_get_str16le
avio_open
avio_open_dyn_buf
avio_pause
avio_printf
avio_put_str
avio_put_str16le
avio_r8
avio_rb16
avio_rb24
avio_rb32
avio_rb64
avio_read
avio_rl16
avio_rl24
avio_rl32
avio_rl64
avio_seek
avio_seek_time
avio_set_interrupt_cb
avio_size
avio_skip
avio_w8
avio_wb16
avio_wb24
avio_wb32
avio_wb64
avio_wl16
avio_wl24
avio_wl32
avio_wl64
avio_write
brktimegm
codec_movaudio_tags
codec_movvideo_tags
dump_format
ff_add_index_entry
ff_celt_codec
ff_codec_bmp_tags
ff_codec_get_id
ff_codec_get_tag
ff_codec_guid_get_id
ff_codec_movsubtitle_tags
ff_codec_wav_guids
ff_codec_wav_tags
ff_crc04C11DB7_update
ff_data_to_hex
ff_find_stream_index
ff_free_parser_state
ff_gen_syncpoint_search
ff_get_bmp_header
ff_get_guid
ff_get_line
ff_get_v_length
ff_get_wav_header
ff_hex_to_data
ff_id3v1_genre_str
ff_id3v1_read
ff_id3v2_2_metadata_conv
ff_id3v2_3_tags
ff_id3v2_34_metadata_conv
ff_id3v2_4_metadata_conv
ff_id3v2_4_tags
ff_id3v2_match
ff_id3v2_read
ff_id3v2_tag_len
ff_id3v2_tags
ff_index_search_timestamp
ff_interleave_add_packet
ff_make_absolute_url
ff_metadata_conv
ff_metadata_conv_ctx
ff_mkv_codec_tags
ff_mkv_metadata_conv
ff_mkv_mime_tags
ff_mov_iso639_to_lang
ff_mov_lang_to_iso639
ff_mov_read_chan
ff_mov_write_chan
ff_mp4_obj_type
ff_mp4_read_dec_config_descr
ff_mp4_read_descr
ff_mp4_read_descr_len
ff_new_chapter
ff_ntp_time
ff_ogm_audio_codec
ff_ogm_old_codec
ff_ogm_text_codec
ff_ogm_video_codec
ff_parse_key_value
ff_parse_specific_params
ff_program_add_stream_index
ff_put_v
ff_read_frame_flush
ff_reduce_index
ff_restore_parser_state
ff_rm_alloc_rmstream
ff_rm_codec_tags
ff_rm_free_rmstream
ff_rm_metadata
ff_rm_parse_packet
ff_rm_read_mdpr_codecdata
ff_rm_reorder_sipr_data
ff_rm_retrieve_cache
ff_sdp_write_media
ff_sipr_subpk_size
ff_skeleton_codec
ff_store_parser_state
ff_theora_codec
ff_url_join
ff_vorbis_codec
ff_vorbis_comment
ff_vorbiscomment_length
ff_vorbiscomment_metadata_conv
ff_vorbiscomment_write
ff_wav_codec_get_id
ff_win32_open
ff_write_chained
ffio_fdopen
ffio_fill
ffio_get_checksum
ffio_init_checksum
ffio_init_context
ffio_open_dyn_packet_buf
ffio_read_partial
ffio_read_varlen
ffio_rewind_with_probe_data
ffio_set_buf_size
ffurl_alloc
ffurl_close
ffurl_connect
ffurl_get_file_handle
ffurl_open
ffurl_read
ffurl_read_complete
ffurl_register_protocol
ffurl_seek
ffurl_size
ffurl_write
find_info_tag
first_protocol
get_be16
get_be24
get_be32
get_be64
get_buffer
get_byte
get_checksum
get_le16
get_le24
get_le32
get_le64
get_partial_buffer
get_strz
init_checksum
init_put_byte
matroska_video_stereo_mode
matroska_video_stereo_plane
parse_date
pcm_read_seek
put_be16
put_be24
put_be32
put_be64
put_buffer
put_byte
put_flush_packet
put_le16
put_le24
put_le32
put_le64
put_nbyte
put_strz
put_tag
url_alloc
url_close
url_close_buf
url_close_dyn_buf
url_connect
url_exist
url_fclose
url_fdopen
url_feof
url_ferror
url_fget_max_packet_size
url_fgetc
url_fgets
url_fileno
url_filesize
url_fopen
url_fprintf
url_fseek
url_fsize
url_fskip
url_ftell
url_get_file_handle
url_get_filename
url_get_max_packet_size
url_interrupt_cb
url_open
url_open_buf
url_open_dyn_buf
url_open_dyn_packet_buf
url_open_protocol
url_read
url_read_complete
url_seek
url_set_interrupt_cb
url_setbufsize
url_write

avformat-53.dll

By Valve (Signed)

Remove avformat-53.dll
MD5:   ef72ebab6058437b158e5dc58769198e
SHA1:   fc5e18833bc253175264cf6945727ac7aee23ef9
SHA256:   e811d721156c83e6af28087d5915b0f8ae0e81e8b0899b54fcb8e0936b2cfc6b

What is avformat-53.dll?

AVFormat is a software/open source LGPL-licensed library of codecs for encoding and decoding video and audio data. Many applications that require video encoding and formatting integrate this library within the program for video playback functionality.

Overview

avformat-53.dll is loaded as dynamic link library that runs in the context of a process. It is installed with a couple of know programs including Team Fortress 2 published by Valve Corporation, Garry's Mod from Team Garry and Garry's Mod by Team Garry. The file is digitally signed by Valve which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:avformat-53.dll
Typical file path:C:\fallout 3\steam\bin\avformat-53.dll
Size:187.93 KB (192,440 bytes)
Certificate
Issued to:Valve
Authority (CA):VeriSign
Digital DNA
PE subsystem:Windows Console
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Empires
4% remove
Empires, the award winning Half-Life 2 mod, combines the best of the first person shooter and real-time strategy genres. Fight as either the Northern Faction, remnants of the fallen nation of Jekotia, or as the imperial Brenodi Empire. Players can organize themselves into highly-effective squads, overwhelming their opponents with superior tactics. Squad leaders can not only direct their respective members, but also use special squad pow...
FAKEFACTORY
6% remove
Raises the outdated graphical appearance of the Half-Life 2 trilogy to a state-of-the-art level, while giving it a more stressed, darker and minatory look. All low-res textures are replaced by high-res counterparts. Cinematic Mod adds an emotional cinematic music soundtrack, optional HD models and unused content from the original games.
No More Room in Hell Team
5% remove
Riot Games
12% remove
League of Legends (LoL) is a multiplayer online battle arena video game developed and published by Riot Games for Microsoft Windows. Players are formed into 2 even teams of Champions, 3v3 or 5v5. League of Legends is a session-based game. Matchmaking occurs based on the average Elo ratings of each individual players, with slight proprietary adjustments. The game can currently be played in five different modes: Tutorial, Custom, Co-Op v...
Team Garry
9% remove
Garry's Mod is a sandbox physics game using a modified Source engine. Garry's Mod has been available on Valve's content delivery service, Steam. Garry's Mod used to require the user to own at least one game on Steam based on the Source engine. It is also commonly used for the creation and publishing of videos on YouTube. Garry's Mod was originally a modification for Valve's Half-Life 2, but was later made into a standalone Steam game. A...
Valve Corporation
4% remove
Team Fortress 2 is a team-based first-person shooter (FPS) multiplayer video game developed by Valve Corporation. It is a sequel to the original mod Team Fortress based on the Source engine. Team Fortress 2 is distributed online through the Steam system, while retail distribution was handled by Electronic Arts. Team Fortress 2 is the first of Valve's multiplayer games to provide detailed statistics for individual players.
Valve Corporation
8% remove
Counter-Strike: Source is a first-person shooter video game developed by Valve Corporation. It is a complete remake of Counter-Strike using the Source game engine, as well as being the first game to use the engine. As in the original, Counter-Strike: Source pits a team of counter-terrorists against a team of terrorists in a series of rounds. Each round is won either by completing an objective (such as detonating a bomb or rescuing hosta...
Valve Corporation
7% remove
Day of Defeat: Source is a team-based first-person shooter multiplayer video game developed by Valve Corporation. Set in World War II, the game is an updated version of Day of Defeat, moving from the GoldSrc engine used by its predecessor to the Source engine. Day of Defeat: Source is set in World War II, specifically the European Theatre in the year 1944. Players choose to join the forces of either the United States Army or the German ...
Valve Corporation
5% remove
Half-Life 2: Deathmatch is a multiplayer first-person shooter video game developed by Valve Corporation. Released on Steam it uses many of the assets from Half-Life 2, and the same Source engine. It features unique levels, optimized for multiplayer arena play, and a few new weapons. Also included are portions of the game's source code, which were the basis for many early Source-based multiplayer modifications. The game is the successor ...
Valve Corporation
23% remove
Team Fortress 2 is a team-based first-person shooter (FPS) multiplayer video game developed by Valve Corporation. It is a sequel to the original mod Team Fortress based on the Source engine. Team Fortress 2 is distributed online through the Steam system, while retail distribution was handled by Electronic Arts. Team Fortress 2 is the first of Valve's multiplayer games to provide detailed statistics for individual players.
Valve Corporation
11% remove
Half-Life 2 the sequel to Half-Life, is a first-person shooter video game and a signature title in the Half-Life series. The game was developed alongside Valve's Steam software. It introduced the Source game engine and, because of Steam, is the first video game to require online product activation. Like its predecessor, Half-Life 2 is a single-player first-person shooter broken into chapters, permanently casting the player as Gordon Fre...
Valve Corporation
6% remove
Portal is a first-person puzzle-platform video game developed by Valve Corporation. The game primarily comprises a series of puzzles that must be solved by teleporting the player's character and simple objects using "the Aperture Science Handheld Portal Device", a device that can create inter-spatial portals between two flat planes. In Portal, the player controls the protagonist, Chell, from a first-person perspective as she is challen...
Valve Corporation
6% remove
Half-Life 2: Lost Coast is a small additional level for the first-person shooter video game Half-Life 2. Developed by Valve Software through the Steam content delivery service as a free download to owners of the Microsoft Windows version of Half-Life 2. Lost Coast serves as a technology demonstration, specifically showcasing the high dynamic range rendering implemented in the Source engine. The level was designed with a variety of appro...
Valve Corporation
12% remove
Half-Life 2: Episode One is a first-person shooter video game, the first in a series of episodes that serve as the sequel for Half-Life 2. It was developed by Valve Corporation. The game's events take place immediately after those in Half-Life 2, in and around war-torn City 17. Episode One follows scientist Gordon Freeman and his companion Alyx Vance as they fight in humanity's continuing struggle against the transhuman race known as th...
Valve Corporation
6% remove
Half-Life 2: Episode Two is a first-person shooter video game developed by Valve Corporation in tandem with Episode One, the first game in the series via Valve's Steam content distribution platform. he episode was released both separately and as a part of a bundled package, The Orange Box. Episode Two gameplay consists of expansive environments, travel and reduced linear play, continuing Valve's policy of orienting each episode around a...
Valve Corporation
3% remove
Portal: First Slice consists of test chambers 00-10, with a total of 11 test chambers. It was originally available on Steam for any user with an Nvidia graphics chipset. The demo was distributed along with Half-Life 2: Deathmatch, Peggle Extreme, and Half-Life 2: Lost Coast. After some time, it was eventually made available to all Steam users, before being completely removed from Steam during the "Portal is Free" marketing campaign.
Valve Corporation
19% remove
Half-Life 2 the sequel to Half-Life, is a first-person shooter video game and a signature title in the Half-Life series. The game was developed alongside Valve's Steam software. It introduced the Source game engine and, because of Steam, is the first video game to require online product activation. Like its predecessor, Half-Life 2 is a single-player first-person shooter broken into chapters, permanently casting the player as Gordon Fre...
Valve Corporation
5% remove
Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay.
Valve Corporation
3% remove
Winner of over 50 Game of the Year awards, Half-Life set new standards for action games when it was released in 1998. Half-Life: Source is a digitally remastered version of the critically acclaimed and best selling PC game, enhanced via Source technology to include physics simulation, enhanced effects, and more.

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 35.87%
Windows 8 Pro 15.22%
Windows 7 Ultimate 13.04%
Windows 8 9.78%
Windows 7 Professional 6.52%
Windows 8 Pro with Media Center 5.43%
Windows 8.1 Pro with Media Center 2.17%
Windows 8.1 2.17%
Microsoft Windows XP 2.17%
Windows 8.1 Pro 1.09%
Windows 8.1 Single Language 1.09%
Windows 8 Single Language 1.09%
Windows Vista Ultimate 1.09%
Windows Vista Home Premium 1.09%
Windows Vista Business 1.09%
Windows 7 Home Basic 1.09%

Distribution by countryDistribution by country

United States installs about 43.48% of avformat-53.dll.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 28.07%
ASUS 17.54%
Dell 14.04%
Lenovo 7.02%
Sony 7.02%
MSI 7.02%
Acer 5.26%
American Megatrends 3.51%
Toshiba 3.51%
Sahara 1.75%
Alienware 1.75%
GIGABYTE 1.75%
Samsung 1.75%
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