| /* |
| * Copyright (C) 2016 Metrological Group B.V. |
| * Copyright (C) 2016 Igalia S.L |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * aint with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(VIDEO) && USE(GSTREAMER) && ENABLE(MEDIA_SOURCE) |
| |
| #include "GStreamerCommon.h" |
| #include "MediaPlayerPrivateGStreamerMSE.h" |
| #include "MediaSourceClientGStreamerMSE.h" |
| #include "SourceBufferPrivateGStreamer.h" |
| |
| #include <gst/gst.h> |
| #include <wtf/Condition.h> |
| |
| namespace WebCore { |
| |
| #if !LOG_DISABLED |
| struct PadProbeInformation { |
| AppendPipeline* appendPipeline; |
| const char* description; |
| gulong probeId; |
| }; |
| #endif |
| |
| class AppendPipeline : public ThreadSafeRefCounted<AppendPipeline> { |
| public: |
| enum class AppendState { Invalid, NotStarted, Ongoing, DataStarve, Sampling, LastSample, Aborting }; |
| |
| AppendPipeline(Ref<MediaSourceClientGStreamerMSE>, Ref<SourceBufferPrivateGStreamer>, MediaPlayerPrivateGStreamerMSE&); |
| virtual ~AppendPipeline(); |
| |
| void handleNeedContextSyncMessage(GstMessage*); |
| void handleApplicationMessage(GstMessage*); |
| void handleStateChangeMessage(GstMessage*); |
| |
| gint id(); |
| AppendState appendState() { return m_appendState; } |
| void setAppendState(AppendState); |
| |
| GstFlowReturn handleNewAppsinkSample(GstElement*); |
| GstFlowReturn pushNewBuffer(GstBuffer*); |
| |
| // Takes ownership of caps. |
| void parseDemuxerSrcPadCaps(GstCaps*); |
| void appsinkCapsChanged(); |
| void appsinkNewSample(GstSample*); |
| void appsinkEOS(); |
| void didReceiveInitializationSegment(); |
| AtomicString trackId(); |
| void abort(); |
| |
| void clearPlayerPrivate(); |
| Ref<SourceBufferPrivateGStreamer> sourceBufferPrivate() { return m_sourceBufferPrivate.get(); } |
| GstBus* bus() { return m_bus.get(); } |
| GstElement* pipeline() { return m_pipeline.get(); } |
| GstElement* appsrc() { return m_appsrc.get(); } |
| GstElement* appsink() { return m_appsink.get(); } |
| GstCaps* demuxerSrcPadCaps() { return m_demuxerSrcPadCaps.get(); } |
| GstCaps* appsinkCaps() { return m_appsinkCaps.get(); } |
| RefPtr<WebCore::TrackPrivateBase> track() { return m_track; } |
| WebCore::MediaSourceStreamTypeGStreamer streamType() { return m_streamType; } |
| |
| void disconnectDemuxerSrcPadFromAppsinkFromAnyThread(GstPad*); |
| void connectDemuxerSrcPadToAppsinkFromAnyThread(GstPad*); |
| void connectDemuxerSrcPadToAppsink(GstPad*); |
| |
| void reportAppsrcAtLeastABufferLeft(); |
| void reportAppsrcNeedDataReceived(); |
| |
| private: |
| void resetPipeline(); |
| void checkEndOfAppend(); |
| void handleAppsrcAtLeastABufferLeft(); |
| void handleAppsrcNeedDataReceived(); |
| void removeAppsrcDataLeavingProbe(); |
| void setAppsrcDataLeavingProbe(); |
| |
| Ref<MediaSourceClientGStreamerMSE> m_mediaSourceClient; |
| Ref<SourceBufferPrivateGStreamer> m_sourceBufferPrivate; |
| MediaPlayerPrivateGStreamerMSE* m_playerPrivate; |
| |
| // (m_mediaType, m_id) is unique. |
| gint m_id; |
| |
| MediaTime m_initialDuration; |
| |
| GstFlowReturn m_flowReturn; |
| |
| GRefPtr<GstElement> m_pipeline; |
| GRefPtr<GstBus> m_bus; |
| GRefPtr<GstElement> m_appsrc; |
| GRefPtr<GstElement> m_demux; |
| GRefPtr<GstElement> m_parser; // Optional. |
| // The demuxer has one src stream only, so only one appsink is needed and linked to it. |
| GRefPtr<GstElement> m_appsink; |
| |
| Lock m_newSampleLock; |
| Condition m_newSampleCondition; |
| Lock m_padAddRemoveLock; |
| Condition m_padAddRemoveCondition; |
| |
| GRefPtr<GstCaps> m_appsinkCaps; |
| GRefPtr<GstCaps> m_demuxerSrcPadCaps; |
| FloatSize m_presentationSize; |
| |
| bool m_appsrcAtLeastABufferLeft; |
| bool m_appsrcNeedDataReceived; |
| |
| gulong m_appsrcDataLeavingProbeId; |
| #if !LOG_DISABLED |
| struct PadProbeInformation m_demuxerDataEnteringPadProbeInformation; |
| struct PadProbeInformation m_appsinkDataEnteringPadProbeInformation; |
| #endif |
| |
| // Keeps track of the states of append processing, to avoid performing actions inappropriate for the current state |
| // (eg: processing more samples when the last one has been detected, etc.). See setAppendState() for valid |
| // transitions. |
| AppendState m_appendState; |
| |
| // Aborts can only be completed when the normal sample detection has finished. Meanwhile, the willing to abort is |
| // expressed in this field. |
| bool m_abortPending; |
| |
| WebCore::MediaSourceStreamTypeGStreamer m_streamType; |
| RefPtr<WebCore::TrackPrivateBase> m_track; |
| |
| GRefPtr<GstBuffer> m_pendingBuffer; |
| }; |
| |
| } // namespace WebCore. |
| |
| #endif // USE(GSTREAMER) |