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// Copyright (c) 2010 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.
#include "media/filters/omx_video_decoder.h"
#include "base/callback.h"
#include "base/message_loop.h"
#include "media/base/callback.h"
#include "media/base/filter_host.h"
#include "media/base/limits.h"
#include "media/ffmpeg/ffmpeg_common.h"
#include "media/filters/ffmpeg_interfaces.h"
#include "media/video/omx_video_decode_engine.h"
namespace media {
OmxVideoDecoder::OmxVideoDecoder(
VideoDecodeContext* context)
: decode_engine_(new OmxVideoDecodeEngine()),
decode_context_(context),
width_(0), height_(0) {
DCHECK(decode_engine_.get());
memset(&info_, 0, sizeof(info_));
}
OmxVideoDecoder::~OmxVideoDecoder() {
// TODO(hclam): Make sure OmxVideoDecodeEngine is stopped.
}
void OmxVideoDecoder::Initialize(DemuxerStream* demuxer_stream,
FilterCallback* callback) {
if (MessageLoop::current() != message_loop()) {
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this,
&OmxVideoDecoder::Initialize,
make_scoped_refptr(demuxer_stream),
callback));
return;
}
DCHECK_EQ(message_loop(), MessageLoop::current());
DCHECK(!demuxer_stream_);
DCHECK(!initialize_callback_.get());
initialize_callback_.reset(callback);
demuxer_stream_ = demuxer_stream;
// We require bit stream converter for openmax hardware decoder.
demuxer_stream->EnableBitstreamConverter();
// Get the AVStream by querying for the provider interface.
AVStreamProvider* av_stream_provider;
if (!demuxer_stream->QueryInterface(&av_stream_provider)) {
VideoCodecInfo info = {0};
OmxVideoDecoder::OnInitializeComplete(info);
return;
}
AVStream* av_stream = av_stream_provider->GetAVStream();
// TODO(jiesun): shouldn't we check this in demuxer?
width_ = av_stream->codec->width;
height_ = av_stream->codec->height;
if (width_ > Limits::kMaxDimension ||
height_ > Limits::kMaxDimension ||
(width_ * height_) > Limits::kMaxCanvas) {
VideoCodecInfo info = {0};
OmxVideoDecoder::OnInitializeComplete(info);
return;
}
VideoCodecConfig config;
switch (av_stream->codec->codec_id) {
case CODEC_ID_VC1:
config.codec = kCodecVC1; break;
case CODEC_ID_H264:
config.codec = kCodecH264; break;
case CODEC_ID_THEORA:
config.codec = kCodecTheora; break;
case CODEC_ID_MPEG2VIDEO:
config.codec = kCodecMPEG2; break;
case CODEC_ID_MPEG4:
config.codec = kCodecMPEG4; break;
default:
NOTREACHED();
}
config.opaque_context = NULL;
config.width = width_;
config.height = height_;
decode_engine_->Initialize(message_loop(), this, NULL, config);
}
void OmxVideoDecoder::OnInitializeComplete(const VideoCodecInfo& info) {
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(initialize_callback_.get());
info_ = info; // Save a copy.
AutoCallbackRunner done_runner(initialize_callback_.release());
if (info.success) {
media_format_.SetAsString(MediaFormat::kMimeType,
mime_type::kUncompressedVideo);
media_format_.SetAsInteger(MediaFormat::kWidth, width_);
media_format_.SetAsInteger(MediaFormat::kHeight, height_);
media_format_.SetAsInteger(
MediaFormat::kSurfaceType,
static_cast<int>(info.stream_info.surface_type));
media_format_.SetAsInteger(
MediaFormat::kSurfaceFormat,
static_cast<int>(info.stream_info.surface_format));
} else {
host()->SetError(PIPELINE_ERROR_DECODE);
}
}
void OmxVideoDecoder::Stop(FilterCallback* callback) {
if (MessageLoop::current() != message_loop()) {
message_loop()->PostTask(FROM_HERE,
NewRunnableMethod(this,
&OmxVideoDecoder::Stop,
callback));
return;
}
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(!uninitialize_callback_.get());
uninitialize_callback_.reset(callback);
decode_engine_->Uninitialize();
}
void OmxVideoDecoder::OnUninitializeComplete() {
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(uninitialize_callback_.get());
AutoCallbackRunner done_runner(uninitialize_callback_.release());
// TODO(jiesun): Destroy the decoder context.
}
void OmxVideoDecoder::Flush(FilterCallback* callback) {
if (MessageLoop::current() != message_loop()) {
message_loop()->PostTask(FROM_HERE,
NewRunnableMethod(this,
&OmxVideoDecoder::Flush,
callback));
return;
}
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(!flush_callback_.get());
flush_callback_.reset(callback);
decode_engine_->Flush();
}
void OmxVideoDecoder::OnFlushComplete() {
DCHECK(flush_callback_.get());
AutoCallbackRunner done_runner(flush_callback_.release());
}
void OmxVideoDecoder::Seek(base::TimeDelta time,
FilterCallback* callback) {
if (MessageLoop::current() != message_loop()) {
message_loop()->PostTask(FROM_HERE,
NewRunnableMethod(this,
&OmxVideoDecoder::Seek,
time,
callback));
return;
}
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(!seek_callback_.get());
seek_callback_.reset(callback);
decode_engine_->Seek();
}
void OmxVideoDecoder::OnSeekComplete() {
DCHECK_EQ(MessageLoop::current(), message_loop());
DCHECK(seek_callback_.get());
AutoCallbackRunner done_runner(seek_callback_.release());
}
void OmxVideoDecoder::OnError() {
NOTIMPLEMENTED();
}
void OmxVideoDecoder::OnFormatChange(VideoStreamInfo stream_info) {
NOTIMPLEMENTED();
}
void OmxVideoDecoder::ProduceVideoSample(scoped_refptr<Buffer> buffer) {
DCHECK_EQ(message_loop(), MessageLoop::current());
// Issue more demux.
demuxer_stream_->Read(NewCallback(this, &OmxVideoDecoder::DemuxCompleteTask));
}
void OmxVideoDecoder::ConsumeVideoFrame(scoped_refptr<VideoFrame> frame) {
DCHECK_EQ(message_loop(), MessageLoop::current());
VideoFrameReady(frame);
}
void OmxVideoDecoder::ProduceVideoFrame(scoped_refptr<VideoFrame> frame) {
DCHECK(decode_engine_.get());
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(decode_engine_.get(),
&VideoDecodeEngine::ProduceVideoFrame, frame));
}
bool OmxVideoDecoder::ProvidesBuffer() {
DCHECK(info_.success);
return info_.provides_buffers;
}
void OmxVideoDecoder::DemuxCompleteTask(Buffer* buffer) {
// We simply delicate the buffer to the right message loop.
scoped_refptr<Buffer> ref_buffer = buffer;
DCHECK(decode_engine_.get());
message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(decode_engine_.get(),
&VideoDecodeEngine::ConsumeVideoSample, ref_buffer));
}
} // namespace media
// Disable refcounting for the decode engine because it only lives on the
// video decoder thread.
DISABLE_RUNNABLE_METHOD_REFCOUNT(media::VideoDecodeEngine);
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