rx-player
Version:
Canal+ HTML5 Video Player
47 lines (46 loc) • 1.87 kB
JavaScript
/**
* Copyright 2015 CANAL+ Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { OtherError } from "../../errors";
import { findCompleteBox } from "../../parsers/containers/isobmff";
/**
* Check if an ISOBMFF segment has all the right box needed to be decoded.
* Throw if that's not the case.
* @param {Uint8Array} buffer - The whole ISOBMFF segment
* @param {boolean} isInitSegment - `true` if this is an initialization segment,
* `false` otherwise.
*/
export default function checkISOBMFFIntegrity(buffer, isInitSegment) {
if (isInitSegment) {
const ftypIndex = findCompleteBox(buffer, 0x66747970 /* ftyp */);
if (ftypIndex < 0) {
throw new OtherError("INTEGRITY_ERROR", "Incomplete `ftyp` box");
}
const moovIndex = findCompleteBox(buffer, 0x6d6f6f76 /* moov */);
if (moovIndex < 0) {
throw new OtherError("INTEGRITY_ERROR", "Incomplete `moov` box");
}
}
else {
const moofIndex = findCompleteBox(buffer, 0x6d6f6f66 /* moof */);
if (moofIndex < 0) {
throw new OtherError("INTEGRITY_ERROR", "Incomplete `moof` box");
}
const mdatIndex = findCompleteBox(buffer, 0x6d646174 /* mdat */);
if (mdatIndex < 0) {
throw new OtherError("INTEGRITY_ERROR", "Incomplete `mdat` box");
}
}
}