Index: webrtc/modules/audio_coding/neteq/tools/input_audio_file.cc |
diff --git a/webrtc/modules/audio_coding/neteq/tools/input_audio_file.cc b/webrtc/modules/audio_coding/neteq/tools/input_audio_file.cc |
index 6bbb3286e4943b38d32e4a7244458cf90518e9d9..e2ec419b24d828b2fd1ff1af50ccb0f27906d22d 100644 |
--- a/webrtc/modules/audio_coding/neteq/tools/input_audio_file.cc |
+++ b/webrtc/modules/audio_coding/neteq/tools/input_audio_file.cc |
@@ -10,6 +10,8 @@ |
#include "webrtc/modules/audio_coding/neteq/tools/input_audio_file.h" |
+#include "webrtc/base/checks.h" |
+ |
namespace webrtc { |
namespace test { |
@@ -37,6 +39,25 @@ bool InputAudioFile::Read(size_t samples, int16_t* destination) { |
return true; |
} |
+bool InputAudioFile::Seek(int samples) { |
+ if (!fp_) { |
+ return false; |
+ } |
+ // Find file boundaries. |
+ const long current_pos = ftell(fp_); |
+ CHECK_NE(EOF, current_pos) << "Error returned when getting file position."; |
+ CHECK_EQ(0, fseek(fp_, 0, SEEK_END)); // Move to end of file. |
+ const long file_size = ftell(fp_); |
+ CHECK_NE(EOF, file_size) << "Error returned when getting file position."; |
+ // Find new position. |
+ long new_pos = current_pos + sizeof(int16_t) * samples; // Samples to bytes. |
+ CHECK_GE(new_pos, 0) << "Trying to move to before the beginning of the file"; |
+ new_pos = new_pos % file_size; // Wrap around the end of the file. |
+ // Move to new position relative to the beginning of the file. |
+ CHECK_EQ(0, fseek(fp_, new_pos, SEEK_SET)); |
+ return true; |
+} |
+ |
void InputAudioFile::DuplicateInterleaved(const int16_t* source, size_t samples, |
size_t channels, |
int16_t* destination) { |