SWF files are used by Adobe Flash (AKA Shockwave Flash, MacromediaFlash) to encode rich interactive multimedia content and are,essentially, a container for special bytecode instructions to playback that content. In early 2000s, it was dominant rich multimediaweb format (.swf files were integrated into web pages and playedback with a browser plugin), but its usage largely declined in2010s, as HTML5 and performant browser-native solutions(i.e. JavaScript engines and graphical approaches, such as WebGL)emerged.
There are a lot of versions of SWF (~36), format is somewhatdocumented by Adobe.
See Also
(PDF) COMPANY PROFILE CV. ESIS MEDIA NUSANTARA SEBAGAI …eprints.dinus.ac.id/16863/1/jurnal_15931.pdf · nyata penerapan mata kuliah teknik ... Wadji*z, 1980, Filsafat Estetika, Nur Cahaya - DOKUMEN.TIPSAdobe Audition 3.0 64 BitQuickly Fix: Adobe Premiere Pro Error Compiling Movie | Envato Tuts+How to format a USB flash? - EPNThis page hosts a formal specification of Adobe Flash (AKA Shockwave Flash, Macromedia Flash) using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
- Overview
- C++11/STL
- C++98/STL
- C#
- Go
- GraphViz
- Java
- JavaScript
- Lua
- Nim
- Perl
- PHP
- Python
- Ruby
Block diagram
Format specification in Kaitai Struct YAML
meta: id: swf title: Adobe Flash (AKA Shockwave Flash, Macromedia Flash) file-extension: swf xref: justsolve: SWF pronom: fmt/507 # - fmt/{505..507} # Adobe Flash {8..10} # - fmt/{757..776} # Adobe Flash {11..30} loc: - fdd000130 # SWF 7 - fdd000248 # SWF 8 mime: application/x-shockwave-flash wikidata: Q594447 tags: - executable - media license: CC0-1.0 endian: le# imports:# - abc_bytecodedoc: | SWF files are used by Adobe Flash (AKA Shockwave Flash, Macromedia Flash) to encode rich interactive multimedia content and are, essentially, a container for special bytecode instructions to play back that content. In early 2000s, it was dominant rich multimedia web format (.swf files were integrated into web pages and played back with a browser plugin), but its usage largely declined in 2010s, as HTML5 and performant browser-native solutions (i.e. JavaScript engines and graphical approaches, such as WebGL) emerged. There are a lot of versions of SWF (~36), format is somewhat documented by Adobe.doc-ref: https://open-flash.github.io/mirrors/swf-spec-19.pdfseq: - id: compression -orig-id: Signature type: u1 enum: compressions - id: signature -orig-id: Signature contents: "WS" - id: version -orig-id: Version type: u1 - id: len_file -orig-id: FileLength type: u4 - id: plain_body size-eos: true type: swf_body if: compression == compressions::none - id: zlib_body size-eos: true process: zlib type: swf_body if: compression == compressions::zlibtypes: swf_body: seq: - id: rect type: rect - id: frame_rate type: u2 - id: frame_count type: u2 - id: file_attributes_tag type: tag if: _root.version >= 8 - id: tags type: tag repeat: eos rect: seq: - id: b1 type: u1 - id: skip size: num_bytes instances: num_bits: value: b1 >> 3 num_bytes: value: ((num_bits * 4 - 3) + 7) / 8 rgb: seq: - id: r type: u1 - id: g type: u1 - id: b type: u1 tag: seq: - id: record_header type: record_header - id: tag_body size: record_header.len type: switch-on: record_header.tag_type cases: 'tag_type::define_sound': define_sound_body 'tag_type::do_abc': do_abc_body 'tag_type::script_limits': script_limits_body 'tag_type::symbol_class': symbol_class_body 'tag_type::set_background_color': rgb 'tag_type::export_assets': symbol_class_body define_sound_body: seq: - id: id -orig-id: SoundId type: u2 - id: format -orig-id: SoundFormat type: b4 - id: sampling_rate -orig-id: SoundRate type: b2 enum: sampling_rates doc: Sound sampling rate, as per enum. Ignored for Nellymoser and Speex codecs. - id: bits_per_sample -orig-id: SoundSize type: b1 enum: bps - id: num_channels -orig-id: SoundType type: b1 enum: channels - id: num_samples type: u4 enums: sampling_rates: 0: rate_5_5_khz 1: rate_11_khz 2: rate_22_khz 3: rate_44_khz bps: 0: sound_8_bit 1: sound_16_bit channels: 0: mono 1: stereo do_abc_body: seq: - id: flags type: u4 - id: name type: strz encoding: ASCII - id: abcdata size-eos: true #type: abc_bytecode script_limits_body: seq: - id: max_recursion_depth type: u2 - id: script_timeout_seconds type: u2 symbol_class_body: seq: - id: num_symbols type: u2 - id: symbols type: symbol repeat: expr repeat-expr: num_symbols types: symbol: seq: - id: tag type: u2 - id: name type: strz encoding: ASCII record_header: seq: - id: tag_code_and_length type: u2 - id: big_len type: s4 if: small_len == 0x3f instances: tag_type: value: 'tag_code_and_length >> 6' enum: tag_type small_len: value: 'tag_code_and_length & 0b111111' len: value: 'small_len == 0x3f ? big_len : small_len'enums: compressions: 0x46: none # F 0x43: zlib # C 0x5a: lzma # Z tag_type: 0: end_of_file 4: place_object 5: remove_object 9: set_background_color 14: define_sound 26: place_object2 28: remove_object2 43: frame_label 56: export_assets 65: script_limits 69: file_attributes 70: place_object3 76: symbol_class 77: metadata 78: define_scaling_grid 82: do_abc 86: define_scene_and_frame_label_data
