| /* |
| * Copyright (C) 2012-2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "InbandTextTrackPrivateAVF.h" |
| |
| #if ENABLE(VIDEO) && (USE(AVFOUNDATION) || PLATFORM(IOS)) |
| |
| #include "ISOVTTCue.h" |
| #include "InbandTextTrackPrivateClient.h" |
| #include "Logging.h" |
| #include "MediaPlayer.h" |
| #include <JavaScriptCore/ArrayBuffer.h> |
| #include <JavaScriptCore/DataView.h> |
| #include <JavaScriptCore/Int8Array.h> |
| #include <pal/avfoundation/MediaTimeAVFoundation.h> |
| #include <pal/cf/CoreMediaSoftLink.h> |
| #include <wtf/MediaTime.h> |
| #include <wtf/StringPrintStream.h> |
| #include <wtf/text/CString.h> |
| #include <wtf/text/StringBuilder.h> |
| #include <wtf/text/WTFString.h> |
| #include <wtf/unicode/CharacterNames.h> |
| |
| namespace WebCore { |
| |
| AVFInbandTrackParent::~AVFInbandTrackParent() = default; |
| |
| InbandTextTrackPrivateAVF::InbandTextTrackPrivateAVF(AVFInbandTrackParent* owner, CueFormat format) |
| : InbandTextTrackPrivate(format) |
| , m_owner(owner) |
| , m_pendingCueStatus(None) |
| , m_index(0) |
| , m_hasBeenReported(false) |
| , m_seeking(false) |
| , m_haveReportedVTTHeader(false) |
| { |
| } |
| |
| InbandTextTrackPrivateAVF::~InbandTextTrackPrivateAVF() |
| { |
| disconnect(); |
| } |
| |
| static bool makeRGBA32FromARGBCFArray(CFArrayRef colorArray, RGBA32& color) |
| { |
| if (CFArrayGetCount(colorArray) < 4) |
| return false; |
| |
| float componentArray[4]; |
| for (int i = 0; i < 4; i++) { |
| CFNumberRef value = static_cast<CFNumberRef>(CFArrayGetValueAtIndex(colorArray, i)); |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| return false; |
| |
| float component; |
| CFNumberGetValue(value, kCFNumberFloatType, &component); |
| componentArray[i] = component; |
| } |
| |
| color = makeRGBA32FromFloats(componentArray[1], componentArray[2], componentArray[3], componentArray[0]); |
| return true; |
| } |
| |
| void InbandTextTrackPrivateAVF::processCueAttributes(CFAttributedStringRef attributedString, GenericCueData& cueData) |
| { |
| using namespace PAL; |
| // Some of the attributes we translate into per-cue WebVTT settings are repeated on each part of an attributed string so only |
| // process the first instance of each. |
| enum AttributeFlags { |
| Line = 1 << 0, |
| Position = 1 << 1, |
| Size = 1 << 2, |
| Vertical = 1 << 3, |
| Align = 1 << 4, |
| FontName = 1 << 5 |
| }; |
| unsigned processed = 0; |
| |
| StringBuilder content; |
| String attributedStringValue = CFAttributedStringGetString(attributedString); |
| CFIndex length = attributedStringValue.length(); |
| if (!length) |
| return; |
| |
| CFRange effectiveRange = CFRangeMake(0, 0); |
| while ((effectiveRange.location + effectiveRange.length) < length) { |
| |
| CFDictionaryRef attributes = CFAttributedStringGetAttributes(attributedString, effectiveRange.location + effectiveRange.length, &effectiveRange); |
| if (!attributes) |
| continue; |
| |
| StringBuilder tagStart; |
| CFStringRef valueString; |
| String tagEnd; |
| CFIndex attributeCount = CFDictionaryGetCount(attributes); |
| Vector<const void*> keys(attributeCount); |
| Vector<const void*> values(attributeCount); |
| CFDictionaryGetKeysAndValues(attributes, keys.data(), values.data()); |
| |
| for (CFIndex i = 0; i < attributeCount; ++i) { |
| CFStringRef key = static_cast<CFStringRef>(keys[i]); |
| CFTypeRef value = values[i]; |
| if (CFGetTypeID(key) != CFStringGetTypeID() || !CFStringGetLength(key)) |
| continue; |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_Alignment, 0) == kCFCompareEqualTo) { |
| valueString = static_cast<CFStringRef>(value); |
| if (CFGetTypeID(valueString) != CFStringGetTypeID() || !CFStringGetLength(valueString)) |
| continue; |
| if (processed & Align) |
| continue; |
| processed |= Align; |
| |
| if (CFStringCompare(valueString, kCMTextMarkupAlignmentType_Start, 0) == kCFCompareEqualTo) |
| cueData.setAlign(GenericCueData::Start); |
| else if (CFStringCompare(valueString, kCMTextMarkupAlignmentType_Middle, 0) == kCFCompareEqualTo) |
| cueData.setAlign(GenericCueData::Middle); |
| else if (CFStringCompare(valueString, kCMTextMarkupAlignmentType_End, 0) == kCFCompareEqualTo) |
| cueData.setAlign(GenericCueData::End); |
| else |
| ASSERT_NOT_REACHED(); |
| |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_BoldStyle, 0) == kCFCompareEqualTo) { |
| if (static_cast<CFBooleanRef>(value) != kCFBooleanTrue) |
| continue; |
| |
| tagStart.appendLiteral("<b>"); |
| tagEnd = "</b>" + tagEnd; |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_ItalicStyle, 0) == kCFCompareEqualTo) { |
| if (static_cast<CFBooleanRef>(value) != kCFBooleanTrue) |
| continue; |
| |
| tagStart.appendLiteral("<i>"); |
| tagEnd = "</i>" + tagEnd; |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_UnderlineStyle, 0) == kCFCompareEqualTo) { |
| if (static_cast<CFBooleanRef>(value) != kCFBooleanTrue) |
| continue; |
| |
| tagStart.appendLiteral("<u>"); |
| tagEnd = "</u>" + tagEnd; |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_OrthogonalLinePositionPercentageRelativeToWritingDirection, 0) == kCFCompareEqualTo) { |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| continue; |
| if (processed & Line) |
| continue; |
| processed |= Line; |
| |
| CFNumberRef valueNumber = static_cast<CFNumberRef>(value); |
| double line; |
| CFNumberGetValue(valueNumber, kCFNumberFloat64Type, &line); |
| cueData.setLine(line); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_TextPositionPercentageRelativeToWritingDirection, 0) == kCFCompareEqualTo) { |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| continue; |
| if (processed & Position) |
| continue; |
| processed |= Position; |
| |
| CFNumberRef valueNumber = static_cast<CFNumberRef>(value); |
| double position; |
| CFNumberGetValue(valueNumber, kCFNumberFloat64Type, &position); |
| cueData.setPosition(position); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_WritingDirectionSizePercentage, 0) == kCFCompareEqualTo) { |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| continue; |
| if (processed & Size) |
| continue; |
| processed |= Size; |
| |
| CFNumberRef valueNumber = static_cast<CFNumberRef>(value); |
| double size; |
| CFNumberGetValue(valueNumber, kCFNumberFloat64Type, &size); |
| cueData.setSize(size); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_VerticalLayout, 0) == kCFCompareEqualTo) { |
| valueString = static_cast<CFStringRef>(value); |
| if (CFGetTypeID(valueString) != CFStringGetTypeID() || !CFStringGetLength(valueString)) |
| continue; |
| |
| if (CFStringCompare(valueString, kCMTextVerticalLayout_LeftToRight, 0) == kCFCompareEqualTo) |
| tagStart.append(leftToRightMark); |
| else if (CFStringCompare(valueString, kCMTextVerticalLayout_RightToLeft, 0) == kCFCompareEqualTo) |
| tagStart.append(rightToLeftMark); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_BaseFontSizePercentageRelativeToVideoHeight, 0) == kCFCompareEqualTo) { |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| continue; |
| |
| CFNumberRef valueNumber = static_cast<CFNumberRef>(value); |
| double baseFontSize; |
| CFNumberGetValue(valueNumber, kCFNumberFloat64Type, &baseFontSize); |
| cueData.setBaseFontSize(baseFontSize); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_RelativeFontSize, 0) == kCFCompareEqualTo) { |
| if (CFGetTypeID(value) != CFNumberGetTypeID()) |
| continue; |
| |
| CFNumberRef valueNumber = static_cast<CFNumberRef>(value); |
| double relativeFontSize; |
| CFNumberGetValue(valueNumber, kCFNumberFloat64Type, &relativeFontSize); |
| cueData.setRelativeFontSize(relativeFontSize); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_FontFamilyName, 0) == kCFCompareEqualTo) { |
| valueString = static_cast<CFStringRef>(value); |
| if (CFGetTypeID(valueString) != CFStringGetTypeID() || !CFStringGetLength(valueString)) |
| continue; |
| if (processed & FontName) |
| continue; |
| processed |= FontName; |
| |
| cueData.setFontName(valueString); |
| continue; |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_ForegroundColorARGB, 0) == kCFCompareEqualTo) { |
| CFArrayRef arrayValue = static_cast<CFArrayRef>(value); |
| if (CFGetTypeID(arrayValue) != CFArrayGetTypeID()) |
| continue; |
| |
| RGBA32 color; |
| if (!makeRGBA32FromARGBCFArray(arrayValue, color)) |
| continue; |
| cueData.setForegroundColor(color); |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_BackgroundColorARGB, 0) == kCFCompareEqualTo) { |
| CFArrayRef arrayValue = static_cast<CFArrayRef>(value); |
| if (CFGetTypeID(arrayValue) != CFArrayGetTypeID()) |
| continue; |
| |
| RGBA32 color; |
| if (!makeRGBA32FromARGBCFArray(arrayValue, color)) |
| continue; |
| cueData.setBackgroundColor(color); |
| } |
| |
| if (CFStringCompare(key, kCMTextMarkupAttribute_CharacterBackgroundColorARGB, 0) == kCFCompareEqualTo) { |
| CFArrayRef arrayValue = static_cast<CFArrayRef>(value); |
| if (CFGetTypeID(arrayValue) != CFArrayGetTypeID()) |
| continue; |
| |
| RGBA32 color; |
| if (!makeRGBA32FromARGBCFArray(arrayValue, color)) |
| continue; |
| cueData.setHighlightColor(color); |
| } |
| } |
| |
| content.append(tagStart); |
| content.append(attributedStringValue.substring(effectiveRange.location, effectiveRange.length)); |
| content.append(tagEnd); |
| } |
| |
| if (content.length()) |
| cueData.setContent(content.toString()); |
| } |
| |
| void InbandTextTrackPrivateAVF::processCue(CFArrayRef attributedStrings, CFArrayRef nativeSamples, const MediaTime& time) |
| { |
| if (!client()) |
| return; |
| |
| processAttributedStrings(attributedStrings, time); |
| processNativeSamples(nativeSamples, time); |
| } |
| |
| void InbandTextTrackPrivateAVF::processAttributedStrings(CFArrayRef attributedStrings, const MediaTime& time) |
| { |
| CFIndex count = attributedStrings ? CFArrayGetCount(attributedStrings) : 0; |
| |
| if (count) |
| DEBUG_LOG(LOGIDENTIFIER, "added ", count, count > 1 ? " cues" : " cue", " at time ", time); |
| |
| Vector<Ref<GenericCueData>> arrivingCues; |
| if (count) { |
| for (CFIndex i = 0; i < count; i++) { |
| CFAttributedStringRef attributedString = static_cast<CFAttributedStringRef>(CFArrayGetValueAtIndex(attributedStrings, i)); |
| |
| if (!attributedString || !CFAttributedStringGetLength(attributedString)) |
| continue; |
| |
| auto cueData = GenericCueData::create(); |
| processCueAttributes(attributedString, cueData.get()); |
| if (!cueData->content().length()) |
| continue; |
| |
| cueData->setStartTime(time); |
| cueData->setEndTime(MediaTime::positiveInfiniteTime()); |
| |
| // AVFoundation cue "position" is to the center of the text so adjust relative to the edge because we will use it to |
| // set CSS "left". |
| if (cueData->position() >= 0 && cueData->size() > 0) |
| cueData->setPosition(cueData->position() - cueData->size() / 2); |
| |
| cueData->setStatus(GenericCueData::Partial); |
| |
| arrivingCues.append(WTFMove(cueData)); |
| } |
| } |
| |
| if (m_pendingCueStatus != None) { |
| // Cues do not have an explicit duration, they are displayed until the next "cue" (which might be empty) is emitted. |
| m_currentCueEndTime = time; |
| |
| if (m_currentCueEndTime >= m_currentCueStartTime) { |
| for (auto& cueData : m_cues) { |
| // See if one of the newly-arrived cues is an extension of this cue. |
| Vector<Ref<GenericCueData>> nonExtensionCues; |
| for (auto& arrivingCue : arrivingCues) { |
| if (!arrivingCue->doesExtendCueData(*cueData)) |
| nonExtensionCues.append(WTFMove(arrivingCue)); |
| else |
| DEBUG_LOG(LOGIDENTIFIER, "found an extension cue ", *cueData); |
| } |
| |
| bool currentCueIsExtended = (arrivingCues.size() != nonExtensionCues.size()); |
| |
| arrivingCues = WTFMove(nonExtensionCues); |
| |
| if (currentCueIsExtended) |
| continue; |
| |
| if (m_pendingCueStatus == Valid) { |
| cueData->setEndTime(m_currentCueEndTime); |
| cueData->setStatus(GenericCueData::Complete); |
| |
| DEBUG_LOG(LOGIDENTIFIER, "updating cue ", *cueData); |
| |
| client()->updateGenericCue(*cueData); |
| } else { |
| // We have to assume that the implicit duration is invalid for cues delivered during a seek because the AVF decode pipeline may not |
| // see every cue, so DO NOT update cue duration while seeking. |
| DEBUG_LOG(LOGIDENTIFIER, "ignoring cue delivered during seek ", *cueData); |
| } |
| } |
| } else |
| ERROR_LOG(LOGIDENTIFIER, "negative length cue(s): start ", m_currentCueStartTime, ", end ", m_currentCueEndTime); |
| |
| removeCompletedCues(); |
| } |
| |
| if (arrivingCues.isEmpty()) |
| return; |
| |
| m_currentCueStartTime = time; |
| |
| for (auto& cueData : arrivingCues) { |
| m_cues.append(cueData.ptr()); |
| DEBUG_LOG(LOGIDENTIFIER, "adding cue ", cueData.get()); |
| client()->addGenericCue(cueData); |
| } |
| |
| m_pendingCueStatus = seeking() ? DeliveredDuringSeek : Valid; |
| } |
| |
| void InbandTextTrackPrivateAVF::beginSeeking() |
| { |
| // Forget any partially accumulated cue data as the seek could be to a time outside of the cue's |
| // range, which will mean that the next cue delivered will result in the current cue getting the |
| // incorrect duration. |
| resetCueValues(); |
| m_seeking = true; |
| } |
| |
| void InbandTextTrackPrivateAVF::disconnect() |
| { |
| m_owner = 0; |
| m_index = 0; |
| } |
| |
| void InbandTextTrackPrivateAVF::removeCompletedCues() |
| { |
| if (client()) { |
| long currentCue = m_cues.size() - 1; |
| for (; currentCue >= 0; --currentCue) { |
| auto& cue = m_cues[currentCue]; |
| if (cue->status() != GenericCueData::Complete) |
| continue; |
| |
| DEBUG_LOG(LOGIDENTIFIER, "removing cue ", *cue); |
| |
| m_cues.remove(currentCue); |
| } |
| } |
| |
| if (m_cues.isEmpty()) |
| m_pendingCueStatus = None; |
| |
| m_currentCueStartTime = MediaTime::zeroTime(); |
| m_currentCueEndTime = MediaTime::zeroTime(); |
| } |
| |
| void InbandTextTrackPrivateAVF::resetCueValues() |
| { |
| if (m_currentCueEndTime && m_cues.size()) |
| INFO_LOG(LOGIDENTIFIER, "flushing data for cues: start = ", m_currentCueStartTime); |
| |
| if (auto* client = this->client()) { |
| for (auto& cue : m_cues) |
| client->removeGenericCue(*cue); |
| } |
| |
| m_cues.shrink(0); |
| m_pendingCueStatus = None; |
| m_currentCueStartTime = MediaTime::zeroTime(); |
| m_currentCueEndTime = MediaTime::zeroTime(); |
| } |
| |
| void InbandTextTrackPrivateAVF::setMode(InbandTextTrackPrivate::Mode newMode) |
| { |
| if (!m_owner) |
| return; |
| |
| InbandTextTrackPrivate::Mode oldMode = mode(); |
| InbandTextTrackPrivate::setMode(newMode); |
| |
| if (oldMode == newMode) |
| return; |
| |
| m_owner->trackModeChanged(); |
| } |
| |
| void InbandTextTrackPrivateAVF::processNativeSamples(CFArrayRef nativeSamples, const MediaTime& presentationTime) |
| { |
| using namespace PAL; |
| |
| if (!nativeSamples) |
| return; |
| |
| CFIndex count = CFArrayGetCount(nativeSamples); |
| if (!count) |
| return; |
| |
| INFO_LOG(LOGIDENTIFIER, count, " sample buffers at time ", presentationTime); |
| |
| for (CFIndex i = 0; i < count; i++) { |
| RefPtr<ArrayBuffer> buffer; |
| MediaTime duration; |
| CMFormatDescriptionRef formatDescription; |
| if (!readNativeSampleBuffer(nativeSamples, i, buffer, duration, formatDescription)) |
| continue; |
| |
| auto view = JSC::DataView::create(WTFMove(buffer), 0, buffer->byteLength()); |
| auto peekResult = ISOBox::peekBox(view, 0); |
| if (!peekResult) |
| continue; |
| |
| auto type = peekResult.value().first; |
| auto boxLength = peekResult.value().second; |
| if (boxLength > view->byteLength()) { |
| ERROR_LOG(LOGIDENTIFIER, "chunk type = '", type.toString(), "', size = ", (size_t)boxLength, " larger than buffer length!"); |
| continue; |
| } |
| |
| DEBUG_LOG(LOGIDENTIFIER, "chunk type = '", type.toString(), "', size = ", (size_t)boxLength); |
| |
| do { |
| if (m_haveReportedVTTHeader || !formatDescription) |
| break; |
| |
| CFDictionaryRef extensions = CMFormatDescriptionGetExtensions(formatDescription); |
| if (!extensions) |
| break; |
| |
| CFDictionaryRef sampleDescriptionExtensions = static_cast<CFDictionaryRef>(CFDictionaryGetValue(extensions, kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms)); |
| if (!sampleDescriptionExtensions) |
| break; |
| |
| CFDataRef webvttHeaderData = static_cast<CFDataRef>(CFDictionaryGetValue(sampleDescriptionExtensions, CFSTR("vttC"))); |
| if (!webvttHeaderData) |
| break; |
| |
| unsigned length = CFDataGetLength(webvttHeaderData); |
| if (!length) |
| break; |
| |
| // A WebVTT header is terminated by "One or more WebVTT line terminators" so append two line feeds to make sure the parser |
| // reccognized this string as a full header. |
| StringBuilder header; |
| header.append(reinterpret_cast<const unsigned char*>(CFDataGetBytePtr(webvttHeaderData)), length); |
| header.append("\n\n"); |
| |
| DEBUG_LOG(LOGIDENTIFIER, "VTT header ", &header); |
| client()->parseWebVTTFileHeader(header.toString()); |
| m_haveReportedVTTHeader = true; |
| } while (0); |
| |
| if (type == ISOWebVTTCue::boxTypeName()) { |
| ISOWebVTTCue cueData = ISOWebVTTCue(presentationTime, duration); |
| cueData.read(view); |
| DEBUG_LOG(LOGIDENTIFIER, "VTT cue data ", cueData); |
| client()->parseWebVTTCueData(cueData); |
| } |
| |
| m_sampleInputBuffer.remove(0, (size_t)boxLength); |
| } |
| } |
| |
| bool InbandTextTrackPrivateAVF::readNativeSampleBuffer(CFArrayRef nativeSamples, CFIndex index, RefPtr<ArrayBuffer>& buffer, MediaTime& duration, CMFormatDescriptionRef& formatDescription) |
| { |
| using namespace PAL; |
| #if OS(WINDOWS) && HAVE(AVCFPLAYERITEM_CALLBACK_VERSION_2) |
| return false; |
| #else |
| CMSampleBufferRef sampleBuffer = reinterpret_cast<CMSampleBufferRef>(const_cast<void*>(CFArrayGetValueAtIndex(nativeSamples, index))); |
| if (!sampleBuffer) |
| return false; |
| |
| CMSampleTimingInfo timingInfo; |
| OSStatus status = CMSampleBufferGetSampleTimingInfo(sampleBuffer, index, &timingInfo); |
| if (status) { |
| ERROR_LOG(LOGIDENTIFIER, "CMSampleBufferGetSampleTimingInfo returned error ", status, "' for sample ", index); |
| return false; |
| } |
| |
| duration = PAL::toMediaTime(timingInfo.duration); |
| |
| CMBlockBufferRef blockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer); |
| size_t bufferLength = CMBlockBufferGetDataLength(blockBuffer); |
| if (bufferLength < ISOBox::minimumBoxSize()) { |
| ERROR_LOG(LOGIDENTIFIER, "CMSampleBuffer size length unexpectedly small ", bufferLength); |
| return false; |
| } |
| |
| m_sampleInputBuffer.grow(m_sampleInputBuffer.size() + bufferLength); |
| CMBlockBufferCopyDataBytes(blockBuffer, 0, bufferLength, m_sampleInputBuffer.data() + m_sampleInputBuffer.size() - bufferLength); |
| |
| buffer = ArrayBuffer::create(m_sampleInputBuffer.data(), m_sampleInputBuffer.size()); |
| |
| formatDescription = CMSampleBufferGetFormatDescription(sampleBuffer); |
| |
| return true; |
| #endif |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(VIDEO) && (USE(AVFOUNDATION) || PLATFORM(IOS)) |
