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
|
/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "testsupport/frame_reader.h"
#include <cassert>
#include "testsupport/fileutils.h"
namespace webrtc {
namespace test {
FrameReaderImpl::FrameReaderImpl(std::string input_filename,
int frame_length_in_bytes)
: input_filename_(input_filename),
frame_length_in_bytes_(frame_length_in_bytes),
input_file_(NULL) {
}
FrameReaderImpl::~FrameReaderImpl() {
Close();
}
bool FrameReaderImpl::Init() {
if (frame_length_in_bytes_ <= 0) {
fprintf(stderr, "Frame length must be >0, was %d\n",
frame_length_in_bytes_);
return false;
}
input_file_ = fopen(input_filename_.c_str(), "rb");
if (input_file_ == NULL) {
fprintf(stderr, "Couldn't open input file for reading: %s\n",
input_filename_.c_str());
return false;
}
// Calculate total number of frames.
size_t source_file_size = GetFileSize(input_filename_);
if (source_file_size <= 0u) {
fprintf(stderr, "Found empty file: %s\n", input_filename_.c_str());
return false;
}
number_of_frames_ = source_file_size / frame_length_in_bytes_;
return true;
}
void FrameReaderImpl::Close() {
if (input_file_ != NULL) {
fclose(input_file_);
input_file_ = NULL;
}
}
bool FrameReaderImpl::ReadFrame(WebRtc_UWord8* source_buffer) {
assert(source_buffer);
if (input_file_ == NULL) {
fprintf(stderr, "FrameReader is not initialized (input file is NULL)\n");
return false;
}
size_t nbr_read = fread(source_buffer, 1, frame_length_in_bytes_,
input_file_);
if (nbr_read != static_cast<unsigned int>(frame_length_in_bytes_) &&
ferror(input_file_)) {
fprintf(stderr, "Error reading from input file: %s\n",
input_filename_.c_str());
return false;
}
if (feof(input_file_) != 0) {
return false; // No more frames to process.
}
return true;
}
} // namespace test
} // namespace webrtc
|
