1b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 2b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 4b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Use of this source code is governed by a BSD-style license 5b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * that can be found in the LICENSE file in the root of the source 6b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * tree. An additional intellectual property rights grant can be found 7b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * in the file PATENTS. All contributing project authors may 8b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * be found in the AUTHORS file in the root of the source tree. 9b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 10b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 11b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 12b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * decode_bwe.c 13b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 14b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * This C file contains the internal decode bandwidth estimate function. 15b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 16b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 17b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 18b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "bandwidth_estimator.h" 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "codec.h" 21b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "entropy_coding.h" 22b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "structs.h" 23b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 24b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 25b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 26b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 27b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgint WebRtcIsacfix_EstimateBandwidth(BwEstimatorstr *bwest_str, 28b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org Bitstr_dec *streamdata, 29fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int32_t packet_size, 30fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org uint16_t rtp_seq_number, 31fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org uint32_t send_ts, 32fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org uint32_t arr_ts) 33b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 34fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t index; 35fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t frame_samples; 36b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int err; 37b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 38b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* decode framelength */ 39b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org err = WebRtcIsacfix_DecodeFrameLen(streamdata, &frame_samples); 40b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* error check */ 41b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (err<0) { 42b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return err; 43b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 44b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 45b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* decode BW estimation */ 46b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org err = WebRtcIsacfix_DecodeSendBandwidth(streamdata, &index); 47b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* error check */ 48b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (err<0) { 49b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return err; 50b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 51b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 52b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Update BWE with received data */ 53b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org err = WebRtcIsacfix_UpdateUplinkBwImpl( 54b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org bwest_str, 55b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org rtp_seq_number, 56724e3f874a820dcd272d5e1b38b00066d9442b90bjornv@webrtc.org frame_samples * 1000 / FS, 57b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org send_ts, 58b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org arr_ts, 59fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org (int16_t) packet_size, /* in bytes */ 60b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org index); 61b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 62b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* error check */ 63b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (err<0) { 64b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return err; 65b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 66b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 67b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Succesful */ 68b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return 0; 69b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 70