#include?“codec.h“
#include?“ui_codec.h“

codec::codec（QWidget?*parent）?:
????QMainWindow（parent）
????ui（new?Ui::codec）
{
????ui->setupUi（this）;

????openAACFile（）;
}

codec::~codec（）
{
????delete?ui;
}

int?codec::flush_encoder（AVFormatContext?*fctxunsigned?int?astindex）{
????int?ret;
????int?got_afr;
????AVPacket?ec_apkt;
????if?（!（fctx->streams[astindex]->codec->codec->capabilities?&?AV_CODEC_CAP_DELAY））
????????return?0;
????while?（1）?{
????????ec_apkt.data?=?nullptr;
????????ec_apkt.size?=?0;
????????av_init_packet（&ec_apkt）;
????????ret?=?avcodec_encode_audio2?（fctx->streams[astindex]->codec?&ec_apkt
????????????nullptr?&got_afr）;
????????av_frame_free（nullptr）;
????????if?（ret?????????????break;
????????if?（!got_afr）{
????????????ret?=?0;
????????????break;
????????}
????????printf（“Flush?Encoder:?Succeed?to?encode?1?aac?frame!\taSize:%5d\n“ec_apkt.size）;
????????//?Mux?encoded?aac?frame
????????ret?=?av_write_frame（fctx?&ec_apkt）;
????????if?（ret?????????????cout?<ame!“?<????????????break;
????}
????return?ret;
}

void?codec::AddADTS（int?pktLen）
{
????//int?m_PcmSampleRatem_PcmChannel;
????AVCodecContext?*aacctx;

????char?m_pOutData[1024?*?10];
????int?profile?=?1;?//?AAC?LC
????int?freqIdx?=?0xb;?//?44.1KHz
????int?chanCfg?=?aacctx->channels;?//m_PcmChannel;?//?CPE

????if?（aacctx->bit_rate?==?96000）
????{
????????freqIdx?=?0x00;
????}
????else?if（aacctx->bit_rate?==?88200）
????{
????????freqIdx?=?0x01;
????}
????else?if?（aacctx->bit_rate?==?64000）
????{
????????freqIdx?=?0x02;
????}
????else?if?（aacctx->bit_rate?==?48000）
????{
????????freqIdx?=?0x03;
????}
????else?if?（aacctx->bit_rate?==?44100）
????{
????????freqIdx?=?0x04;
????}
????else?if?（aacctx->bit_rate?==?32000）
????{
????????freqIdx?=?0x05;
????}
????else?if?（aacctx->bit_rate?==?24000）
????{
????????freqIdx?=?0x06;
????}
????else?if?（aacctx->bit_rate?==?22050）
????{
????????freqIdx?=?0x07;
????}
????else?if?（aacctx->bit_rate?==?16000）
????{
????????freqIdx?=?0x08;
????}
????else?if?（aacctx->bit_rate?==?12000）
????{
????????freqIdx?=?0x09;
????}
????else?if?（aacctx->bit_rate?==?11025）
????{
????????freqIdx?=?0x0a;
????}
????else?if?（aacctx->bit_rate?==?8000）
????{
????????freqIdx?=?0x0b;
????}
????else?if?（aacctx->bit_rate?==?7350）
????{
????????freqIdx?=?0xc;
????}
????//?fill?in?ADTS?data
????m_pOutData[0]?=?0xFF;
????m_pOutData[1]?=?0xF1;
????m_pOutData[2]?=?（（profile）?<>?2）;
????m_pOutData[3]?=?（（（chanCfg?&?3）?<>?11））;
????m_pOutData[4]?=?（（pktLen?&?0x7FF）?>>?3）;
????m_pOutData[5]?=?（（（pktLen?&?7）?<????m_pOutData[6]?=?0xFC;
}

int?codec::openAACFile（）
{
????AVFormatContext*?aacfctx?=?nullptr;
????AVOutputFormat*?fmt?=?nullptr;
????AVStream*?aacSt?=?nullptr;
????AVCodecContext*?aacctx?=?nullptr;
????AVCodec*?aacc;
????AVframe*?aacfr?=?nullptr;
?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-11-29?09:21??aac\
?????文件????????1621??2018-11-29?09:18??aac\aac.pro
?????文件???????23472??2018-11-29?09:14??aac\aac.pro.user
?????文件????????7549??2018-11-29?09:20??aac\codec.cpp
?????文件????????1393??2018-11-29?09:21??aac\codec.h
?????文件?????????639??2018-11-29?09:14??aac\codec.ui
?????目錄???????????0??2018-11-29?08:20??aac\ff4.0.2x32\
?????文件???????35823??2018-07-25?16:07??aac\ff4.0.2x32\LICENSE.txt
?????文件????????4480??2018-07-25?16:07??aac\ff4.0.2x32\README.txt
?????目錄???????????0??2018-11-29?08:20??aac\ff4.0.2x32\examples\
?????文件????????1970??2018-07-25?16:07??aac\ff4.0.2x32\examples\Makefile
?????文件?????????888??2018-07-25?16:07??aac\ff4.0.2x32\examples\README
?????文件????????5551??2018-07-25?16:07??aac\ff4.0.2x32\examples\avio_dir_cmd.c
?????文件????????4015??2018-07-25?16:07??aac\ff4.0.2x32\examples\avio_reading.c
?????文件????????5349??2018-07-25?16:07??aac\ff4.0.2x32\examples\decode_audio.c
?????文件????????5290??2018-07-25?16:07??aac\ff4.0.2x32\examples\decode_video.c
?????文件???????14568??2018-07-25?16:07??aac\ff4.0.2x32\examples\demuxing_decoding.c
?????文件????????6579??2018-07-25?16:07??aac\ff4.0.2x32\examples\encode_audio.c
?????文件????????5544??2018-07-25?16:07??aac\ff4.0.2x32\examples\encode_video.c
?????文件????????5641??2018-07-25?16:07??aac\ff4.0.2x32\examples\extract_mvs.c
?????文件???????11824??2018-07-25?16:07??aac\ff4.0.2x32\examples\filter_audio.c
?????文件???????10266??2018-07-25?16:07??aac\ff4.0.2x32\examples\filtering_audio.c
?????文件????????9675??2018-07-25?16:07??aac\ff4.0.2x32\examples\filtering_video.c
?????文件????????5254??2018-07-25?16:07??aac\ff4.0.2x32\examples\http_multiclient.c
?????文件????????7715??2018-07-25?16:07??aac\ff4.0.2x32\examples\hw_decode.c
?????文件????????1918??2018-07-25?16:07??aac\ff4.0.2x32\examples\metadata.c
?????文件???????21513??2018-07-25?16:07??aac\ff4.0.2x32\examples\muxing.c
?????文件????????8239??2018-07-25?16:07??aac\ff4.0.2x32\examples\qsvdec.c
?????文件????????6388??2018-07-25?16:07??aac\ff4.0.2x32\examples\remuxing.c
?????文件????????8005??2018-07-25?16:07??aac\ff4.0.2x32\examples\resampling_audio.c
?????文件????????5028??2018-07-25?16:07??aac\ff4.0.2x32\examples\scaling_video.c
............此處省略241個文件信息