1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "ppapi/proxy/media_stream_video_track_resource.h"
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/video_frame_resource.h"
#include "ppapi/shared_impl/media_stream_buffer.h"
#include "ppapi/shared_impl/media_stream_video_track_shared.h"
#include "ppapi/shared_impl/var.h"
namespace ppapi {
namespace proxy {
MediaStreamVideoTrackResource::MediaStreamVideoTrackResource(
Connection connection,
PP_Instance instance,
int pending_renderer_id,
const std::string& id)
: MediaStreamTrackResourceBase(
connection, instance, pending_renderer_id, id),
get_frame_output_(NULL) {
}
MediaStreamVideoTrackResource::MediaStreamVideoTrackResource(
Connection connection,
PP_Instance instance)
: MediaStreamTrackResourceBase(connection, instance),
get_frame_output_(NULL) {
SendCreate(RENDERER, PpapiHostMsg_MediaStreamVideoTrack_Create());
}
MediaStreamVideoTrackResource::~MediaStreamVideoTrackResource() {
Close();
}
thunk::PPB_MediaStreamVideoTrack_API*
MediaStreamVideoTrackResource::AsPPB_MediaStreamVideoTrack_API() {
return this;
}
PP_Var MediaStreamVideoTrackResource::GetId() {
return StringVar::StringToPPVar(id());
}
PP_Bool MediaStreamVideoTrackResource::HasEnded() {
return PP_FromBool(has_ended());
}
int32_t MediaStreamVideoTrackResource::Configure(
const int32_t attrib_list[],
scoped_refptr<TrackedCallback> callback) {
if (has_ended())
return PP_ERROR_FAILED;
if (TrackedCallback::IsPending(configure_callback_) ||
TrackedCallback::IsPending(get_frame_callback_)) {
return PP_ERROR_INPROGRESS;
}
// Do not support configure, if frames are hold by plugin.
if (!frames_.empty())
return PP_ERROR_INPROGRESS;
MediaStreamVideoTrackShared::Attributes attributes;
int i = 0;
for (;attrib_list[i] != PP_MEDIASTREAMVIDEOTRACK_ATTRIB_NONE; i += 2) {
switch (attrib_list[i]) {
case PP_MEDIASTREAMVIDEOTRACK_ATTRIB_BUFFERED_FRAMES:
attributes.buffers = attrib_list[i + 1];
break;
case PP_MEDIASTREAMVIDEOTRACK_ATTRIB_WIDTH:
attributes.width = attrib_list[i + 1];
break;
case PP_MEDIASTREAMVIDEOTRACK_ATTRIB_HEIGHT:
attributes.height = attrib_list[i + 1];
break;
case PP_MEDIASTREAMVIDEOTRACK_ATTRIB_FORMAT:
attributes.format = static_cast<PP_VideoFrame_Format>(attrib_list[i + 1]);
break;
default:
return PP_ERROR_BADARGUMENT;
}
}
if (!MediaStreamVideoTrackShared::VerifyAttributes(attributes))
return PP_ERROR_BADARGUMENT;
configure_callback_ = callback;
Call<PpapiPluginMsg_MediaStreamVideoTrack_ConfigureReply>(
RENDERER, PpapiHostMsg_MediaStreamVideoTrack_Configure(attributes),
base::BindOnce(&MediaStreamVideoTrackResource::OnPluginMsgConfigureReply,
base::Unretained(this)),
callback);
return PP_OK_COMPLETIONPENDING;
}
int32_t MediaStreamVideoTrackResource::GetAttrib(
PP_MediaStreamVideoTrack_Attrib attrib,
int32_t* value) {
// TODO(penghuang): implement this function.
return PP_ERROR_NOTSUPPORTED;
}
int32_t MediaStreamVideoTrackResource::GetFrame(
PP_Resource* frame,
scoped_refptr<TrackedCallback> callback) {
if (has_ended())
return PP_ERROR_FAILED;
if (TrackedCallback::IsPending(configure_callback_) ||
TrackedCallback::IsPending(get_frame_callback_)) {
return PP_ERROR_INPROGRESS;
}
*frame = GetVideoFrame();
if (*frame)
return PP_OK;
get_frame_output_ = frame;
get_frame_callback_ = callback;
return PP_OK_COMPLETIONPENDING;
}
int32_t MediaStreamVideoTrackResource::RecycleFrame(PP_Resource frame) {
FrameMap::iterator it = frames_.find(frame);
if (it == frames_.end())
return PP_ERROR_BADRESOURCE;
scoped_refptr<VideoFrameResource> frame_resource = it->second;
frames_.erase(it);
if (has_ended())
return PP_OK;
DCHECK_GE(frame_resource->GetBufferIndex(), 0);
SendEnqueueBufferMessageToHost(frame_resource->GetBufferIndex());
frame_resource->Invalidate();
return PP_OK;
}
void MediaStreamVideoTrackResource::Close() {
if (has_ended())
return;
if (TrackedCallback::IsPending(get_frame_callback_)) {
*get_frame_output_ = 0;
get_frame_callback_->PostAbort();
get_frame_callback_.reset();
get_frame_output_ = 0;
}
ReleaseFrames();
MediaStreamTrackResourceBase::CloseInternal();
}
int32_t MediaStreamVideoTrackResource::GetEmptyFrame(
PP_Resource* frame, scoped_refptr<TrackedCallback> callback) {
return GetFrame(frame, callback);
}
int32_t MediaStreamVideoTrackResource::PutFrame(PP_Resource frame) {
// TODO(ronghuawu): Consider to rename RecycleFrame to PutFrame and use
// one set of GetFrame and PutFrame for both input and output.
return RecycleFrame(frame);
}
void MediaStreamVideoTrackResource::OnNewBufferEnqueued() {
if (!TrackedCallback::IsPending(get_frame_callback_))
return;
*get_frame_output_ = GetVideoFrame();
int32_t result = *get_frame_output_ ? PP_OK : PP_ERROR_FAILED;
get_frame_output_ = NULL;
scoped_refptr<TrackedCallback> callback;
callback.swap(get_frame_callback_);
callback->Run(result);
}
PP_Resource MediaStreamVideoTrackResource::GetVideoFrame() {
int32_t index = buffer_manager()->DequeueBuffer();
if (index < 0)
return 0;
MediaStreamBuffer* buffer = buffer_manager()->GetBufferPointer(index);
DCHECK(buffer);
scoped_refptr<VideoFrameResource> resource =
new VideoFrameResource(pp_instance(), index, buffer);
// Add |pp_resource()| and |resource| into |frames_|.
// |frames_| uses std::unique_ptr<> to hold a ref of |resource|. It keeps the
// resource alive.
frames_.insert(FrameMap::value_type(resource->pp_resource(), resource));
return resource->GetReference();
}
void MediaStreamVideoTrackResource::ReleaseFrames() {
for (FrameMap::iterator it = frames_.begin(); it != frames_.end(); ++it) {
// Just invalidate and release VideoFrameResorce, but keep PP_Resource.
// So plugin can still use |RecycleFrame()|.
it->second->Invalidate();
it->second.reset();
}
}
void MediaStreamVideoTrackResource::OnPluginMsgConfigureReply(
const ResourceMessageReplyParams& params,
const std::string& track_id) {
if (id().empty()) {
set_id(track_id);
} else {
DCHECK_EQ(id(), track_id);
}
if (TrackedCallback::IsPending(configure_callback_)) {
scoped_refptr<TrackedCallback> callback;
callback.swap(configure_callback_);
callback->Run(params.result());
}
}
} // namespace proxy
} // namespace ppapi
|