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Unified Diff: content/renderer/pepper/pepper_video_decoder_host.h

Issue 270213004: Implement Pepper PPB_VideoDecoder interface. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Disable some unit tests on Win 64 bit builds. Created 6 years, 7 months ago
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Index: content/renderer/pepper/pepper_video_decoder_host.h
diff --git a/content/renderer/pepper/pepper_video_decoder_host.h b/content/renderer/pepper/pepper_video_decoder_host.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc44fe848dffe9778ae846b106db13647c9c5ca0
--- /dev/null
+++ b/content/renderer/pepper/pepper_video_decoder_host.h
@@ -0,0 +1,117 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_
+#define CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_
+
+#include <map>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/containers/hash_tables.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "content/common/content_export.h"
+#include "gpu/command_buffer/common/mailbox.h"
+#include "media/video/video_decode_accelerator.h"
+#include "ppapi/c/pp_codecs.h"
+#include "ppapi/host/host_message_context.h"
+#include "ppapi/host/resource_host.h"
+#include "ppapi/proxy/resource_message_params.h"
+
+namespace base {
+class SharedMemory;
+}
+
+namespace content {
+
+class PPB_Graphics3D_Impl;
+class RendererPpapiHost;
+class RenderViewImpl;
+
+class CONTENT_EXPORT PepperVideoDecoderHost
+ : public ppapi::host::ResourceHost,
+ public media::VideoDecodeAccelerator::Client {
+ public:
+ PepperVideoDecoderHost(RendererPpapiHost* host,
+ PP_Instance instance,
+ PP_Resource resource);
+ virtual ~PepperVideoDecoderHost();
+
+ private:
+ struct PendingDecode {
+ PendingDecode(uint32_t shm_id,
+ const ppapi::host::ReplyMessageContext& reply_context);
+ ~PendingDecode();
+
+ const uint32_t shm_id;
+ const ppapi::host::ReplyMessageContext reply_context;
+ };
+
+ // ResourceHost implementation.
+ virtual int32_t OnResourceMessageReceived(
+ const IPC::Message& msg,
+ ppapi::host::HostMessageContext* context) OVERRIDE;
+
+ // media::VideoDecodeAccelerator::Client implementation.
+ virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers,
+ const gfx::Size& dimensions,
+ uint32 texture_target) OVERRIDE;
+ virtual void DismissPictureBuffer(int32 picture_buffer_id) OVERRIDE;
+ virtual void PictureReady(const media::Picture& picture) OVERRIDE;
+ virtual void NotifyError(media::VideoDecodeAccelerator::Error error) OVERRIDE;
+ virtual void NotifyFlushDone() OVERRIDE;
+ virtual void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) OVERRIDE;
+ virtual void NotifyResetDone() OVERRIDE;
+
+ int32_t OnHostMsgInitialize(ppapi::host::HostMessageContext* context,
+ const ppapi::HostResource& graphics_context,
+ PP_VideoProfile profile,
+ bool allow_software_fallback);
+ int32_t OnHostMsgGetShm(ppapi::host::HostMessageContext* context,
+ uint32_t shm_id,
+ uint32_t shm_size);
+ int32_t OnHostMsgDecode(ppapi::host::HostMessageContext* context,
+ uint32_t shm_id,
+ uint32_t size,
+ int32_t decode_id);
+ int32_t OnHostMsgAssignTextures(ppapi::host::HostMessageContext* context,
+ const PP_Size& size,
+ const std::vector<uint32_t>& texture_ids);
+ int32_t OnHostMsgRecyclePicture(ppapi::host::HostMessageContext* context,
+ uint32_t picture_id);
+ int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context);
+ int32_t OnHostMsgReset(ppapi::host::HostMessageContext* context);
+
+ // Non-owning pointer.
+ RendererPpapiHost* renderer_ppapi_host_;
+
+ scoped_ptr<media::VideoDecodeAccelerator> decoder_;
+ scoped_refptr<PPB_Graphics3D_Impl> graphics3d_;
+
+ // A vector holding our shm buffers, in sync with a similar vector in the
+ // resource. We use a buffer's index in these vectors as its id on both sides
+ // of the proxy. Only add buffers or update them in place so as not to
+ // invalidate these ids.
+ ScopedVector<base::SharedMemory> shm_buffers_;
+ // A vector of true/false indicating if a shm buffer is in use by the decoder.
+ // This is parallel to |shm_buffers_|.
+ std::vector<uint8_t> shm_buffer_busy_;
+
+ // Maps decode uid to PendingDecode info.
+ typedef base::hash_map<int32_t, PendingDecode> PendingDecodeMap;
+ PendingDecodeMap pending_decodes_;
+
+ ppapi::host::ReplyMessageContext flush_reply_context_;
+ ppapi::host::ReplyMessageContext reset_reply_context_;
+
+ bool initialized_;
+
+ DISALLOW_COPY_AND_ASSIGN(PepperVideoDecoderHost);
+};
+
+} // namespace content
+
+#endif // CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_DECODER_HOST_H_
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