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</v:shape><![endif]--><![if !vml]><img width=92 height=85 style='width:.9583in;height:.8854in' src="cid:image001.png@01D2A6D8.91173650" align=left hspace=12 alt=Logo-mini v:shapes="Image_x0020_2"><![endif]><b><i><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:navy'>SUBSEA TECH</span></i></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><i><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:navy'>Marine</span></i></b><b><i><span lang=EN-US style='font-size:7.5pt;font-family:"Arial",sans-serif;color:navy'> </span></i></b><b><i><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif;color:navy'>and Underwater Technologies</span></i></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:navy'>167 Plage de l'Estaque 13016 Marseille - France</span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial",sans-serif;color:navy'>Tel: +33 (0) 4 91 51 76 71</span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial",sans-serif;color:navy'>Web: </span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:navy'><a href="http://www.subsea-tech.com/" target="_blank"><span lang=EN-GB style='font-size:7.5pt;font-family:"Calibri",sans-serif;color:blue'>www.subsea-tech.com</span></a></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>De :</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Libav-user [mailto:libav-user-bounces@ffmpeg.org] <b>De la part de</b> Paolo Prete<br><b>Envoyé :</b> lundi 27 mars 2017 02:05<br><b>À :</b> libav-user@ffmpeg.org<br><b>Objet :</b> [Libav-user] New libav API usage axamples<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id="yui_3_16_0_1_1490572074077_11307"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>Hello, <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11307"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11308"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>during my last job's project I had to use very often the AV library for many purposes. Then, I created many snippets of code which are aligned to the ffmpeg's 3.2 version: they don't use deprecated functions (no warnings from compiler) and can be useful as API usage examples, considering that the current state of the doc/examples directory seems not good and a bit messy. All the snippets that I wrote are short, and they cover many audio+video tasks, from grabbing from audio/video devices to network streaming. If the FFMPEG developers think that they can be pushed in the doc/examples directory, I can spend time in re-organizing all the material and send it progressively to the FFMPEG project. For now, I send an example which converts a raw audio file to float-planar and encodes it to adts-aac. Please, give me some feedback and I'll go on in contributing to the project by sending other examples.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11308"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11308"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11308"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13513"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>/*<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13514"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * Copyright (c) 2017 Paolo Prete (<a href="mailto:p4olo_prete@yahoo.it">p4olo_prete@yahoo.it</a>)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13515"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> *<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13516"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * Permission is hereby granted, free of charge, to any person obtaining a copy<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13517"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * of this software and associated documentation files (the "Software"), to deal<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13518"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * in the Software without restriction, including without limitation the rights<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13519"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13520"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * copies of the Software, and to permit persons to whom the Software is<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13521"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * furnished to do so, subject to the following conditions:<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13522"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> *<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13523"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * The above copyright notice and this permission notice shall be included in<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13524"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * all copies or substantial portions of the Software.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13525"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> *<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13526"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13527"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13528"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13529"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13530"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13531"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13532"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * THE SOFTWARE.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13533"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> */<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13534"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13536"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>/**<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13537"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * @file<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13538"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * API example for adts-aac encoding raw audio files. <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13539"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * This example reads a raw audio input file, converts it to float-planar format, performs aac encoding and puts the encoded frames into an ADTS container. The encoded stream is written to <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13540"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * a file named "out.aac"<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13541"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * The raw input audio file can be created with: ffmpeg -i some_audio_file -f f32le -acodec pcm_f32le -ac 2 -ar 16000 raw_audio_file.raw<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13542"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13543"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> * @example encode_raw_audio_file_to_aac.c<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13544"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> */<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13545"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13547"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#include <libavcodec/avcodec.h><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13548"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#include <libavformat/avformat.h><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13549"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#include <libavutil/timestamp.h><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13550"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#include <libswresample/swresample.h><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13551"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13553"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13555"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#define ENCODER_BITRATE 64000<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13556"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#define SAMPLE_RATE 16000<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13557"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#define INPUT_SAMPLE_FMT AV_SAMPLE_FMT_FLT<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13558"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>#define CHANNELS 2<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13559"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13561"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13563"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>static char *const get_error_text(const int error)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13564"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>{<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13565"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> static char error_buffer[255];<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13566"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_strerror(error, error_buffer, sizeof(error_buffer));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13567"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> return error_buffer;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13568"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>}<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13569"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13571"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13573"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>static int write_adts_muxed_data (void *opaque, uint8_t *adts_data, int size)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13574"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>{<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13575"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> FILE *encoded_audio_file = (FILE *)opaque;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13576"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> fwrite(adts_data, 1, size, encoded_audio_file); //(f)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13577"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> return size;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13578"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>}<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13579"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13581"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13583"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>int main(int argc, char **argv)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13584"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>{<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13585"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13586"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13587"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (argc != 2) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13588"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Usage: %s <raw audio input file (CHANNELS, INPUT_SAMPLE_FMT, SAMPLE_RATE)>\n", argv[0]);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13589"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> return 1;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13590"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13591"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13592"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13593"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int ret_val = 0;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13594"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int cleanup_step = 1; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13595"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13596"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13597"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13598"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> FILE *input_audio_file = fopen(argv[1], "rb");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13599"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(!input_audio_file){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13600"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not open input audio file\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13601"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> return AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13602"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13603"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13604"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> FILE *encoded_audio_file = fopen("out.aac", "wb"); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13605"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(!encoded_audio_file){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13606"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not open output audio file\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13607"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13608"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13609"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13610"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13611"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13613"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13614"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13615"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_register_all();<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13616"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13618"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13619"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13620"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13621"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Allocate the encoder's context and open the encoder<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13622"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13623"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVCodec *audio_codec = avcodec_find_encoder(AV_CODEC_ID_AAC);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13624"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(!audio_codec){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13625"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not find aac codec\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13626"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13627"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13628"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13629"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVCodecContext *audio_encoder_ctx = avcodec_alloc_context3(audio_codec);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13630"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(!audio_codec){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13631"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate the encoding context\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13632"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13633"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13634"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13635"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13636"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->sample_fmt = AV_SAMPLE_FMT_FLTP;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13637"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->bit_rate = ENCODER_BITRATE;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13638"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->sample_rate = SAMPLE_RATE; // You can use any other sample rate provided by the input file on condition that it is supported by the codec (use AVCodec::supported_samplerates for listing supported sample rates)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13639"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->channels = CHANNELS;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13640"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->channel_layout = av_get_default_channel_layout(CHANNELS);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13641"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->time_base = (AVRational){1, SAMPLE_RATE};<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13642"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> audio_encoder_ctx->codec_type = AVMEDIA_TYPE_AUDIO ;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13643"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if ((ret_val = avcodec_open2(audio_encoder_ctx, audio_codec, NULL)) < 0) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13644"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not open input codec (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13645"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13646"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13647"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13648"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13649"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13650"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13651"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Allocate an AVFrame which will be filled with the input file's data. <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13652"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13653"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVFrame *input_audio_frame;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13654"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!(input_audio_frame = av_frame_alloc())) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13655"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate input frame\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13656"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13657"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13658"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13659"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> input_audio_frame->nb_samples = audio_encoder_ctx->frame_size;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13660"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> input_audio_frame->format = INPUT_SAMPLE_FMT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13661"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> input_audio_frame->channels = CHANNELS;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13662"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> input_audio_frame->sample_rate = SAMPLE_RATE;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13663"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> input_audio_frame->channel_layout = av_get_default_channel_layout(CHANNELS);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13664"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Allocate the frame's data buffer <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13665"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if ((ret_val = av_frame_get_buffer(input_audio_frame, 0)) < 0) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13666"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate container for input frame samples (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13667"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13668"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13669"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13670"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13671"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13672"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13673"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13674"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Input data must be converted to float-planar format, which is the format required by the AAC encoder. We allocate a SwrContext and an AVFrame (which will contain the converted samples)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13675"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // for this task. The AVFrame will feed the encoding function (avcodec_send_frame())<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13676"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13677"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> SwrContext *audio_convert_context = swr_alloc_set_opts(NULL, av_get_default_channel_layout(CHANNELS), AV_SAMPLE_FMT_FLTP, SAMPLE_RATE, av_get_default_channel_layout(CHANNELS), INPUT_SAMPLE_FMT, SAMPLE_RATE, 0, NULL);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13678"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!audio_convert_context) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13679"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate resample context\n"); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13680"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13681"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13682"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13683"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13684"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVFrame *converted_audio_frame;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13685"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!(converted_audio_frame = av_frame_alloc())) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13686"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate resampled frame\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13687"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13688"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13689"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13690"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13691"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> converted_audio_frame->nb_samples = audio_encoder_ctx->frame_size;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13692"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> converted_audio_frame->format = audio_encoder_ctx->sample_fmt;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13693"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> converted_audio_frame->channels = audio_encoder_ctx->channels;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13694"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> converted_audio_frame->channel_layout = audio_encoder_ctx->channel_layout;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13695"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> converted_audio_frame->sample_rate = SAMPLE_RATE; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13696"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if ((ret_val = av_frame_get_buffer(converted_audio_frame, 0)) < 0) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13697"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate a buffer for resampled frame samples (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13698"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13699"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13700"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13701"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13702"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13703"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13704"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Create the ADTS container for the encoded frames<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13705"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13706"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVOutputFormat *adts_container = av_guess_format("adts", NULL, NULL);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13707"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!adts_container) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13708"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not find adts output format\n"); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13709"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13710"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13711"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13712"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVFormatContext *adts_container_ctx;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13713"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if ((ret_val = avformat_alloc_output_context2(&adts_container_ctx, adts_container, "", NULL)) < 0){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13714"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not create output context (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13715"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13716"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13717"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13718"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> size_t adts_container_buffer_size = 4096;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13719"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> uint8_t *adts_container_buffer;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13720"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(!(adts_container_buffer = (uint8_t* )av_malloc(adts_container_buffer_size))){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13721"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not allocate a buffer for the I/O output context\n"); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13722"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13723"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13724"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13725"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13726"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Create an I/O context for the adts container with a write callback (write_adts_muxed_data()), so that muxed data will be accessed through this function.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13727"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVIOContext *adts_avio_ctx;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13728"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!(adts_avio_ctx = avio_alloc_context(adts_container_buffer, adts_container_buffer_size, 1, encoded_audio_file, NULL , &write_adts_muxed_data, NULL))) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13729"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not create I/O output context\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13730"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13731"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13732"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13733"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13734"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Link the container's context to the previous I/O context<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13735"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> adts_container_ctx->pb = adts_avio_ctx;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13736"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVStream *adts_stream;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13737"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if (!(adts_stream = avformat_new_stream(adts_container_ctx, NULL))) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13738"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Could not create new stream\n"); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13739"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR(ENOMEM);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13740"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13741"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13742"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> adts_stream->id = adts_container_ctx->nb_streams-1;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13743"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Copy the encoder's parameters <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13744"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> avcodec_parameters_from_context(adts_stream->codecpar, audio_encoder_ctx); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13745"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Allocate the stream private data and write the stream header<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13746"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(avformat_write_header(adts_container_ctx, NULL) < 0){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13747"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "avformat_write_header() error\n");<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13748"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = AVERROR_EXIT;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13749"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13750"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13751"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++cleanup_step;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13752"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13753"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13754"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13755"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13756"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Fill the input frame's data buffer with input file data (a), <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13757"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Convert the input frame to float-planar format (b), <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13758"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Send the converted frame to the encoder (c), <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13759"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Get the encoded packet (d),<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13760"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Send the encoded packet to the adts muxer (e). <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13761"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Muxed data is caught in write_adts_muxed_data() callback and it is written to the output audio file ( (f) : see above)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13762"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> //<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13763"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> AVPacket encoded_audio_packet;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13764"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_init_packet(&encoded_audio_packet);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13765"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int encoded_pkt_counter = 1;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13766"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> while(1) {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13767"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int audio_bytes_to_encode = fread(input_audio_frame->data[0], 1, input_audio_frame->linesize[0], input_audio_file); //(a)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13768"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> swr_convert_frame(audio_convert_context, converted_audio_frame, (const AVFrame *)input_audio_frame); //(b)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13769"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(audio_bytes_to_encode != input_audio_frame->linesize[0]){ <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13770"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> break;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13771"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13772"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> else {<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13773"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Do encode<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13774"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = avcodec_send_frame(audio_encoder_ctx, converted_audio_frame); //(c)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13775"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(ret_val == 0) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13776"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret_val = avcodec_receive_packet(audio_encoder_ctx, &encoded_audio_packet); //(d)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13777"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> else{<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13778"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Error encoding frame (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13779"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13780"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13781"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13782"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(ret_val == 0){ <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13783"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int64_t pts = converted_audio_frame->nb_samples*(encoded_pkt_counter-1);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13784"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> encoded_audio_packet.pts = encoded_audio_packet.dts = pts; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13785"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if((ret_val == av_write_frame(adts_container_ctx, &encoded_audio_packet)) < 0){ //(e)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13786"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_ERROR, "Error calling av_write_frame() (error '%s')\n", get_error_text(ret_val));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13787"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> goto cleanup;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13788"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13789"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> else{<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13790"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_INFO, "Encoded AAC packet %d, size=%d, pts_time=%s\n", encoded_pkt_counter, encoded_audio_packet.size, av_ts2timestr(encoded_audio_packet.pts, &audio_encoder_ctx->time_base));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13791"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++encoded_pkt_counter;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13792"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13793"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13794"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13795"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13796"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> // Flush delayed packets<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13797"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int still_pkts_to_flush = 1;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13798"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int delayed_pkt_counter = 1; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13799"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> while(still_pkts_to_flush){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13800"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int ret = avcodec_send_frame(audio_encoder_ctx, NULL);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13801"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(ret != 0)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13802"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> still_pkts_to_flush = 0;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13803"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ret = avcodec_receive_packet(audio_encoder_ctx, &encoded_audio_packet);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13804"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(ret == 0){<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13805"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> int64_t pts = converted_audio_frame->nb_samples*(encoded_pkt_counter-1);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13806"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> encoded_audio_packet.pts = encoded_audio_packet.dts = pts; <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13807"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_write_frame(adts_container_ctx, &encoded_audio_packet);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13808"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_log(NULL, AV_LOG_INFO, "Flushed encoded AAC delayed packet %d, size=%d, pts_time=%s\n", delayed_pkt_counter, encoded_audio_packet.size, av_ts2timestr(encoded_audio_packet.pts, &audio_encoder_ctx->time_base));<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13809"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++delayed_pkt_counter;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13810"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> ++encoded_pkt_counter;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13811"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> } <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13812"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> }<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13813"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13815"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13816"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_write_trailer(adts_container_ctx); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13817"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13819"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13820"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13821"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13822"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>cleanup: <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13823"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13825"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13827"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 0)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13828"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> fclose(input_audio_file);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13829"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 1)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13830"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> fclose(encoded_audio_file); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13831"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 2) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13832"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> avcodec_free_context(&audio_encoder_ctx);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13833"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 3) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13834"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_frame_free(&input_audio_frame);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13835"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 4) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13836"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> swr_free(&audio_convert_context); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13837"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 5) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13838"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_frame_free(&converted_audio_frame);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13839"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 6) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13840"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> avformat_free_context(adts_container_ctx);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13841"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 7) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13842"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_free(adts_container_buffer);<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13843"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 8) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13844"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_free(adts_avio_ctx); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13845"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> if(cleanup_step > 9) <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13846"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> av_packet_unref(&encoded_audio_packet); <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13847"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13848"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13849"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> return ret_val;<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13850"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13851"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'>}<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13852"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13854"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_13856"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11309"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11309"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11309"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_11309"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_9362"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_9362"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_9362"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490572074077_9362"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica",sans-serif;color:black'><o:p> </o:p></span></p></div></div></div></body></html>