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Diffstat (limited to 'webrtc/modules/video_coding/test/stream_generator.h')
-rw-r--r-- | webrtc/modules/video_coding/test/stream_generator.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/webrtc/modules/video_coding/test/stream_generator.h b/webrtc/modules/video_coding/test/stream_generator.h new file mode 100644 index 0000000000..36b26db92e --- /dev/null +++ b/webrtc/modules/video_coding/test/stream_generator.h @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2013 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. + */ +#ifndef WEBRTC_MODULES_VIDEO_CODING_TEST_STREAM_GENERATOR_H_ +#define WEBRTC_MODULES_VIDEO_CODING_TEST_STREAM_GENERATOR_H_ + +#include <list> + +#include "webrtc/modules/video_coding/packet.h" +#include "webrtc/modules/video_coding/test/test_util.h" +#include "webrtc/typedefs.h" + +namespace webrtc { + +const unsigned int kDefaultBitrateKbps = 1000; +const unsigned int kDefaultFrameRate = 25; +const unsigned int kMaxPacketSize = 1500; +const unsigned int kFrameSize = + (kDefaultBitrateKbps + kDefaultFrameRate * 4) / (kDefaultFrameRate * 8); +const int kDefaultFramePeriodMs = 1000 / kDefaultFrameRate; + +class StreamGenerator { + public: + StreamGenerator(uint16_t start_seq_num, int64_t current_time); + void Init(uint16_t start_seq_num, int64_t current_time); + + // |time_ms| denotes the timestamp you want to put on the frame, and the unit + // is millisecond. GenerateFrame will translate |time_ms| into a 90kHz + // timestamp and put it on the frame. + void GenerateFrame(FrameType type, + int num_media_packets, + int num_empty_packets, + int64_t time_ms); + + bool PopPacket(VCMPacket* packet, int index); + void DropLastPacket(); + + bool GetPacket(VCMPacket* packet, int index); + + bool NextPacket(VCMPacket* packet); + + uint16_t NextSequenceNumber() const; + + int PacketsRemaining() const; + + private: + VCMPacket GeneratePacket(uint16_t sequence_number, + uint32_t timestamp, + unsigned int size, + bool first_packet, + bool marker_bit, + FrameType type); + + std::list<VCMPacket>::iterator GetPacketIterator(int index); + + std::list<VCMPacket> packets_; + uint16_t sequence_number_; + int64_t start_time_; + uint8_t packet_buffer_[kMaxPacketSize]; + + RTC_DISALLOW_COPY_AND_ASSIGN(StreamGenerator); +}; + +} // namespace webrtc + +#endif // WEBRTC_MODULES_VIDEO_CODING_TEST_STREAM_GENERATOR_H_ |