blob: ff60d1e6e9c187e2f6877d05930636766075f6c8 [file] [log] [blame]
// Copyright 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.
#include <string>
#include <vector>
#include "media/base/media_log.h"
#include "media/webm/webm_colour_parser.h"
#include "media/webm/webm_parser.h"
namespace media {
class VideoDecoderConfig;
// Helper class used to parse a Video element inside a TrackEntry element.
class WebMVideoClient : public WebMParserClient {
explicit WebMVideoClient(const LogCB& log_cb);
virtual ~WebMVideoClient();
// Reset this object's state so it can process a new video track element.
void Reset();
// Initialize |config| with the data in |codec_id|, |codec_private|,
// |is_encrypted| and the fields parsed from the last video track element this
// object was used to parse.
// Returns true if |config| was successfully initialized.
// Returns false if there was unexpected values in the provided parameters or
// video track element fields. The contents of |config| are undefined in this
// case and should not be relied upon.
bool InitializeConfig(const std::string& codec_id,
const std::vector<uint8>& codec_private,
bool is_encrypted,
VideoDecoderConfig* config);
// WebMParserClient implementation.
virtual bool OnUInt(int id, int64 val) OVERRIDE;
virtual bool OnBinary(int id, const uint8* data, int size) OVERRIDE;
virtual bool OnFloat(int id, double val) OVERRIDE;
// Exist to ignore the new Projection list element. This element has UINT,
// FLOAT and BINARY fields which must also be ignored.
WebMParserClient* OnListStart(int id) OVERRIDE;
bool OnListEnd(int id) OVERRIDE;
LogCB log_cb_;
int64 pixel_width_;
int64 pixel_height_;
int64 crop_bottom_;
int64 crop_top_;
int64 crop_left_;
int64 crop_right_;
int64 display_width_;
int64 display_height_;
int64 display_unit_;
int64 alpha_mode_;
bool inside_projection_list_;
WebMColourParser colour_parser_;
bool colour_parsed_;
} // namespace media