Detect raw AC3 and Dirac
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@ -42,6 +42,7 @@ enum Sig48 : uint64
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*/
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enum Sig32 : uint32
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{
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Dirac = 0x42424344u,
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Elf = 0x7F454C46u,
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Flac = 0x664C6143u,
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JavaClassFile = 0xCAFEBABEu,
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@ -79,6 +80,7 @@ enum Sig24 : uint32
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*/
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enum Sig16 : uint16
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{
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Ac3 = 0x0B77u,
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Adts = 0xFFF0u,
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AdtsMask = 0xFFF6u,
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Jpeg = 0xffd8u,
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@ -150,6 +152,8 @@ ContainerFormat parseSignature(const char *buffer, int bufferSize)
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;
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}
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switch(sig >> 32) { // check 32-bit signatures
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case Dirac:
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return ContainerFormat::Dirac;
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case Elf:
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return ContainerFormat::Elf;
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case Flac:
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@ -200,6 +204,8 @@ ContainerFormat parseSignature(const char *buffer, int bufferSize)
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return ContainerFormat::Utf8Text;
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}
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switch(sig >> 48) { // check 16-bit signatures
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case Ac3:
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return ContainerFormat::Ac3Frames;
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case Jpeg:
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return ContainerFormat::Jpeg;
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case Lha:
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@ -227,17 +233,17 @@ ContainerFormat parseSignature(const char *buffer, int bufferSize)
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/*!
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* \brief Returns the abbreviation of the container format as C-style string considering
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* the specified media type and version.
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*
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* This abbreviation might be used as file extension.
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*
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* Returns an empty string if no abbreviation is available.
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* the specified media type and version.
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* \remarks The abbreviation might be used as file extension.
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* \returns Returns an empty string if no abbreviation is available.
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*/
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const char *containerFormatAbbreviation(ContainerFormat containerFormat, MediaType mediaType, unsigned int version)
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{
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switch(containerFormat) {
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case ContainerFormat::Ac3Frames: return "ac3";
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case ContainerFormat::Ar: return "a";
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case ContainerFormat::Asf: return "asf";
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case ContainerFormat::Dirac: return "drc";
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case ContainerFormat::Elf: return "elf";
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case ContainerFormat::Flac: return "flac";
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case ContainerFormat::FlashVideo: return "flv";
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@ -312,12 +318,16 @@ const char *containerFormatAbbreviation(ContainerFormat containerFormat, MediaTy
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const char *containerFormatName(ContainerFormat containerFormat)
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{
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switch(containerFormat) {
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case ContainerFormat::Ac3Frames:
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return "raw Dolby Digital";
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case ContainerFormat::Adts:
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return "Audio Data Transport Stream";
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case ContainerFormat::Ar:
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return "Archive (GNU ar)";
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case ContainerFormat::Asf:
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return "Advanced Systems Format";
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case ContainerFormat::Dirac:
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return "raw Dirac";
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case ContainerFormat::Elf:
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return "Executable and Linkable Format";
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case ContainerFormat::Flac:
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@ -422,6 +432,8 @@ const char *containerFormatSubversion(ContainerFormat containerFormat)
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const char *containerMimeType(ContainerFormat containerFormat, MediaType mediaType)
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{
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switch(containerFormat) {
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case ContainerFormat::Ac3Frames:
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return "audio/ac3";
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case ContainerFormat::Asf:
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return "video/x-ms-asf";
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case ContainerFormat::Flac:
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20
signature.h
20
signature.h
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@ -18,12 +18,15 @@ DECLARE_ENUM_CLASS(TagTargetLevel, byte);
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enum class ContainerFormat
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{
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Unknown, /**< unknown container format */
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Ac3Frames, /**< raw AC-3/Dolby Digital frames */
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Adts, /**< Audio Data Transport Stream */
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Ar, /**< "GNU ar" archive */
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Asf, /**< Advanced Systems Format */
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Bzip2, /**< bzip2 compressed file */
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Dirac, /**< raw Dirac */
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Ebml, /**< EBML */
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Elf, /**< Executable and Linkable Format */
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Flac, /**< Free Lossless Audio Codec (raw stream) */
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Flac, /**< raw Free Lossless Audio Codec */
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FlashVideo, /**< Flash (FLV) */
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Gif87a, /**< Graphics Interchange Format (1987) */
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Gif89a, /**< Graphics Interchange Format (1989) */
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@ -32,31 +35,30 @@ enum class ContainerFormat
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JavaClassFile, /**< Java class file */
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Jpeg, /**< JPEG File Interchange Format */
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Lha, /**< LHA */
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Lzip, /**< lz compressed file */
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Lzw, /**< LZW */
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Matroska, /**< Matroska (subset of EBML) */
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Mp4, /**< MPEG-4 Part 14 (subset of QuickTime container) */
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MpegAudioFrames, /**< MPEG-1 Layer 1/2/3 frames */
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Ogg, /**< Ogg */
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PhotoshopDocument, /**< Photoshop document */
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Png, /**< Portable Network Graphics */
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PortableExecutable, /**< Portable Executable */
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QuickTime, /**< QuickTime container */
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Rar, /**< RAR Archive */
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Ebml, /**< EBML */
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Matroska, /**< Matroska (subset of EBML) */
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Webm, /**< WebM (subset of Matroska) */
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MpegAudioFrames, /**< MPEG-1 Layer 1/2/3 frames */
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Riff, /**< Resource Interchange File Format */
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RiffWave, /**< WAVE (subset of RIFF) */
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RiffAvi, /**< Audio Video Interleave (subset of RIFF) */
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RiffWave, /**< WAVE (subset of RIFF) */
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SevenZ, /**< 7z archive */
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Tar, /**< Tar archive */
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TiffBigEndian, /**< Tagged Image File Format (big endian) */
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TiffLittleEndian, /**< Tagged Image File Format (little endian) */
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Utf16Text, /**< UTF-16 text */
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Utf32Text, /**< UTF-32 text */
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Utf8Text, /**< UTF-8 text */
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Webm, /**< WebM (subset of Matroska) */
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WindowsBitmap, /**< Microsoft Windows Bitmap */
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WindowsIcon, /**< Microsoft Windows Icon */
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SevenZ, /**< 7z archive */
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Lzip, /**< lz compressed file */
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QuickTime, /**< QuickTime container */
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Zip /**< ZIP archive */
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};
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