1/*
2 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/test/fake_decoder.h"
12
13#include "testing/gtest/include/gtest/gtest.h"
14
15namespace webrtc {
16namespace test {
17
18FakeDecoder::FakeDecoder() : callback_(NULL) {}
19
20int32_t FakeDecoder::InitDecode(const VideoCodec* config,
21                                int32_t number_of_cores) {
22  config_ = *config;
23  size_t width = config->width;
24  size_t height = config->height;
25  frame_.CreateEmptyFrame(static_cast<int>(width),
26                          static_cast<int>(height),
27                          static_cast<int>(width),
28                          static_cast<int>((width + 1) / 2),
29                          static_cast<int>((width + 1) / 2));
30  return WEBRTC_VIDEO_CODEC_OK;
31}
32
33int32_t FakeDecoder::Decode(const EncodedImage& input,
34                            bool missing_frames,
35                            const RTPFragmentationHeader* fragmentation,
36                            const CodecSpecificInfo* codec_specific_info,
37                            int64_t render_time_ms) {
38  frame_.set_timestamp(input._timeStamp);
39  frame_.set_ntp_time_ms(input.ntp_time_ms_);
40  frame_.set_render_time_ms(render_time_ms);
41
42  callback_->Decoded(frame_);
43
44  return WEBRTC_VIDEO_CODEC_OK;
45}
46
47int32_t FakeDecoder::RegisterDecodeCompleteCallback(
48    DecodedImageCallback* callback) {
49  callback_ = callback;
50  return WEBRTC_VIDEO_CODEC_OK;
51}
52
53int32_t FakeDecoder::Release() {
54  return WEBRTC_VIDEO_CODEC_OK;
55}
56int32_t FakeDecoder::Reset() {
57  return WEBRTC_VIDEO_CODEC_OK;
58}
59
60int32_t FakeH264Decoder::Decode(const EncodedImage& input,
61                                bool missing_frames,
62                                const RTPFragmentationHeader* fragmentation,
63                                const CodecSpecificInfo* codec_specific_info,
64                                int64_t render_time_ms) {
65  uint8_t value = 0;
66  for (size_t i = 0; i < input._length; ++i) {
67    uint8_t kStartCode[] = {0, 0, 0, 1};
68    if (i < input._length - sizeof(kStartCode) &&
69        !memcmp(&input._buffer[i], kStartCode, sizeof(kStartCode))) {
70      i += sizeof(kStartCode) + 1;  // Skip start code and NAL header.
71    }
72    if (input._buffer[i] != value) {
73      EXPECT_EQ(value, input._buffer[i])
74          << "Bitstream mismatch between sender and receiver.";
75      return -1;
76    }
77    ++value;
78  }
79  return FakeDecoder::Decode(input,
80                             missing_frames,
81                             fragmentation,
82                             codec_specific_info,
83                             render_time_ms);
84}
85
86}  // namespace test
87}  // namespace webrtc
88