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Diffstat (limited to 'thirdparty/libsimplewebm/WebMDemuxer.cpp')
| -rw-r--r-- | thirdparty/libsimplewebm/WebMDemuxer.cpp | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/thirdparty/libsimplewebm/WebMDemuxer.cpp b/thirdparty/libsimplewebm/WebMDemuxer.cpp deleted file mode 100644 index cb63deccd5..0000000000 --- a/thirdparty/libsimplewebm/WebMDemuxer.cpp +++ /dev/null @@ -1,241 +0,0 @@ -/* - MIT License - - Copyright (c) 2016 Błażej Szczygieł - - Permission is hereby granted, free of charge, to any person obtaining a copy - of this software and associated documentation files (the "Software"), to deal - in the Software without restriction, including without limitation the rights - to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - copies of the Software, and to permit persons to whom the Software is - furnished to do so, subject to the following conditions: - - The above copyright notice and this permission notice shall be included in all - copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. -*/ - -#include "WebMDemuxer.hpp" - -#include "mkvparser/mkvparser.h" - -#include <assert.h> -#include <stdlib.h> -#include <string.h> - -WebMFrame::WebMFrame() : - bufferSize(0), bufferCapacity(0), - buffer(NULL), - time(0), - key(false) -{} -WebMFrame::~WebMFrame() -{ - free(buffer); -} - -/**/ - -WebMDemuxer::WebMDemuxer(mkvparser::IMkvReader *reader, int videoTrack, int audioTrack) : - m_reader(reader), - m_segment(NULL), - m_cluster(NULL), m_block(NULL), m_blockEntry(NULL), - m_blockFrameIndex(0), - m_videoTrack(NULL), m_vCodec(NO_VIDEO), - m_audioTrack(NULL), m_aCodec(NO_AUDIO), - m_isOpen(false), - m_eos(false) -{ - long long pos = 0; - if (mkvparser::EBMLHeader().Parse(m_reader, pos)) - return; - - if (mkvparser::Segment::CreateInstance(m_reader, pos, m_segment)) - return; - - if (m_segment->Load() < 0) - return; - - const mkvparser::Tracks *tracks = m_segment->GetTracks(); - const unsigned long tracksCount = tracks->GetTracksCount(); - int currVideoTrack = -1, currAudioTrack = -1; - for (unsigned long i = 0; i < tracksCount; ++i) - { - const mkvparser::Track *track = tracks->GetTrackByIndex(i); - if (const char *codecId = track->GetCodecId()) - { - if ((!m_videoTrack || currVideoTrack != videoTrack) && track->GetType() == mkvparser::Track::kVideo) - { - if (!strcmp(codecId, "V_VP8")) - m_vCodec = VIDEO_VP8; - else if (!strcmp(codecId, "V_VP9")) - m_vCodec = VIDEO_VP9; - if (m_vCodec != NO_VIDEO) - m_videoTrack = static_cast<const mkvparser::VideoTrack *>(track); - ++currVideoTrack; - } - if ((!m_audioTrack || currAudioTrack != audioTrack) && track->GetType() == mkvparser::Track::kAudio) - { - if (!strcmp(codecId, "A_VORBIS")) - m_aCodec = AUDIO_VORBIS; - else if (!strcmp(codecId, "A_OPUS")) - m_aCodec = AUDIO_OPUS; - if (m_aCodec != NO_AUDIO) - m_audioTrack = static_cast<const mkvparser::AudioTrack *>(track); - ++currAudioTrack; - } - } - } - if (!m_videoTrack && !m_audioTrack) - return; - - m_isOpen = true; -} -WebMDemuxer::~WebMDemuxer() -{ - delete m_segment; - delete m_reader; -} - -double WebMDemuxer::getLength() const -{ - return m_segment->GetDuration() / 1e9; -} - -WebMDemuxer::VIDEO_CODEC WebMDemuxer::getVideoCodec() const -{ - return m_vCodec; -} -int WebMDemuxer::getWidth() const -{ - return m_videoTrack->GetWidth(); -} -int WebMDemuxer::getHeight() const -{ - return m_videoTrack->GetHeight(); -} - -WebMDemuxer::AUDIO_CODEC WebMDemuxer::getAudioCodec() const -{ - return m_aCodec; -} -const unsigned char *WebMDemuxer::getAudioExtradata(size_t &size) const -{ - return m_audioTrack->GetCodecPrivate(size); -} -double WebMDemuxer::getSampleRate() const -{ - return m_audioTrack->GetSamplingRate(); -} -int WebMDemuxer::getChannels() const -{ - return m_audioTrack->GetChannels(); -} -int WebMDemuxer::getAudioDepth() const -{ - return m_audioTrack->GetBitDepth(); -} - -bool WebMDemuxer::readFrame(WebMFrame *videoFrame, WebMFrame *audioFrame) -{ - const long videoTrackNumber = (videoFrame && m_videoTrack) ? m_videoTrack->GetNumber() : 0; - const long audioTrackNumber = (audioFrame && m_audioTrack) ? m_audioTrack->GetNumber() : 0; - bool blockEntryEOS = false; - - if (videoFrame) - videoFrame->bufferSize = 0; - if (audioFrame) - audioFrame->bufferSize = 0; - - if (videoTrackNumber == 0 && audioTrackNumber == 0) - return false; - - if (m_eos) - return false; - - if (!m_cluster) - m_cluster = m_segment->GetFirst(); - - do - { - bool getNewBlock = false; - long status = 0; - if (!m_blockEntry && !blockEntryEOS) - { - status = m_cluster->GetFirst(m_blockEntry); - getNewBlock = true; - } - else if (blockEntryEOS || m_blockEntry->EOS()) - { - m_cluster = m_segment->GetNext(m_cluster); - if (!m_cluster || m_cluster->EOS()) - { - m_eos = true; - return false; - } - status = m_cluster->GetFirst(m_blockEntry); - blockEntryEOS = false; - getNewBlock = true; - } - else if (!m_block || m_blockFrameIndex == m_block->GetFrameCount() || notSupportedTrackNumber(videoTrackNumber, audioTrackNumber)) - { - status = m_cluster->GetNext(m_blockEntry, m_blockEntry); - if (!m_blockEntry || m_blockEntry->EOS()) - { - blockEntryEOS = true; - continue; - } - getNewBlock = true; - } - if (status || !m_blockEntry) - return false; - if (getNewBlock) - { - m_block = m_blockEntry->GetBlock(); - m_blockFrameIndex = 0; - } - } while (blockEntryEOS || notSupportedTrackNumber(videoTrackNumber, audioTrackNumber)); - - WebMFrame *frame = NULL; - - const long trackNumber = m_block->GetTrackNumber(); - if (trackNumber == videoTrackNumber) - frame = videoFrame; - else if (trackNumber == audioTrackNumber) - frame = audioFrame; - else - { - //Should not be possible - assert(trackNumber == videoTrackNumber || trackNumber == audioTrackNumber); - return false; - } - - const mkvparser::Block::Frame &blockFrame = m_block->GetFrame(m_blockFrameIndex++); - if (blockFrame.len > frame->bufferCapacity) - { - unsigned char *newBuff = (unsigned char *)realloc(frame->buffer, frame->bufferCapacity = blockFrame.len); - if (newBuff) - frame->buffer = newBuff; - else // Out of memory - return false; - } - frame->bufferSize = blockFrame.len; - - frame->time = m_block->GetTime(m_cluster) / 1e9; - frame->key = m_block->IsKey(); - - return !blockFrame.Read(m_reader, frame->buffer); -} - -inline bool WebMDemuxer::notSupportedTrackNumber(long videoTrackNumber, long audioTrackNumber) const -{ - const long trackNumber = m_block->GetTrackNumber(); - return (trackNumber != videoTrackNumber && trackNumber != audioTrackNumber); -} |