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mp4box

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JavaScript version of GPAC's MP4Box tool

35 lines (33 loc) 1.5 kB
BoxParser.createFullBoxCtor("uncC", "UncompressedFrameConfigBox", function(stream) { var i; this.profile = stream.readString(4); if (this.version == 1) { // Nothing - just the profile } else if (this.version == 0) { this.component_count = stream.readUint32(); this.component_index = []; this.component_bit_depth_minus_one = []; this.component_format = []; this.component_align_size = []; for (i = 0; i < this.component_count; i++) { this.component_index.push(stream.readUint16()); this.component_bit_depth_minus_one.push(stream.readUint8()); this.component_format.push(stream.readUint8()); this.component_align_size.push(stream.readUint8()); } this.sampling_type = stream.readUint8(); this.interleave_type = stream.readUint8(); this.block_size = stream.readUint8(); var flags = stream.readUint8(); this.component_little_endian = (flags >> 7) & 0x1; this.block_pad_lsb = (flags >> 6) & 0x1; this.block_little_endian = (flags >> 5) & 0x1; this.block_reversed = (flags >> 4) & 0x1; this.pad_unknown = (flags >> 3) & 0x1; this.pixel_size = stream.readUint32(); this.row_align_size = stream.readUint32(); this.tile_align_size = stream.readUint32(); this.num_tile_cols_minus_one = stream.readUint32(); this.num_tile_rows_minus_one = stream.readUint32(); } });