不支持音频对象类型3。-Audioobjecttype3isnotsupported

I am running into an issue with a custom-built ffmpeg. Basically, its a vanilla ffmpeg with x264 and fdk-aac libs enabled. I am feeding an SDP file through ffmpeg API and get the following error while passing the info to avcodec_open2:

我遇到了一个问题，一个定制的ffmpeg。基本上，它是一个带有x264和fdk-aac libs的香草ffmpeg。我正在通过ffmpeg API输入一个SDP文件，并在将信息传递给avcodec_open2时得到以下错误:

Audio object type 3 is not supported

不支持音频对象类型3。

My SDP file:

我的SDP文件:

v=0
o=- 0 0 IN IP4 127.0.0.1
s=Unnamed
i=N/A
c=IN IP4 192.168.1.1
t=0 0
a=recvonly
m=audio 8204 RTP/AVP 96
a=rtpmap:96 mpeg4-generic/32000
a=fmtp:96 streamtype=5; profile-level-id=15; mode=AAC-hbr; cOnfig=1a88; SizeLength=13; IndexLength=3; IndexDeltaLength=3;
a=control:trackID=0
m=video 8202 RTP/AVP 96
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;profile-level-id=428028;sprop-parameter-sets=Z0KAKJWgKA9E,aM48gA==;
a=control:trackID=1
m=application 8206 RTP/AVP 96
a=rtpmap:96 smpte336m/10
a=control:trackID=2

The following is the output I get from ffmpeg as I open the input, dump its format, and try to open input streams:

下面是我打开输入时从ffmpeg得到的输出，转储它的格式，并尝试打开输入流:

Format sdp probed with size=2048 and score=50
audio codec set to: aac
audio samplerate set to: 32000
audio channels set to: 1
video codec set to: h264
RTP Packetization Mode: 1
RTP Profile IDC: 42 Profile IOP: 80 Level: 28
Extradata set to 0xc8d3dc0 (size: 21)!
File position before avformat_find_stream_info() is 522
Audio object type 3 is not supported.
Could not find codec parameters for stream 1 (Video: h264): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
File position after avformat_find_stream_info() is 522
Dumping input AV format
Input #0, sdp, from 'conf/test.sdp':

格式sdp probed与size=2048和score=50音频编解码器设置为:aac音频samplerate设置为:32000音频频道设置为:1视频编解码器设置为:h264 RTP packe化模式:1 RTP配置文件IDC: 42 Profile IOP: 80 Level: 28 Extradata set to 0xc8d3dc0 (size: 21)!在avformat_find_stream_info()之前，文件位置是522音频对象类型3不受支持。无法找到流1(视频:h264)的编解码器参数:在avformat_find_stream_info()为522 dump输入AV格式输入#0,sdp，从'conf/test.sdp'中，未指定的大小考虑增加“分析化”和“probesize”选项文件位置的值。

Metadata:
title :Unnamed
comment :N/A

元数据:标题:匿名评论:N/A。

Duration:N/A, bitrate:N/A

持续时间:N / A,比特率:N / A

Stream #0:0, 0, 1/32000: Audio: aac, 32000 Hz, 1 channels, fltp  

Stream #0:1, 0, 1/90000: Video: h264, 90k tbr, 90k tbn, 180k tbc  

Stream #0:2, 0, 1/90000: Data: none, 0/1  

Audio object type 3 is not supported.

不支持音频对象类型3。

I also see the error reported for not finding codec parameters for stream 1:

我也看到了没有找到流1的编解码器参数的错误报告:

Could not find codec parameters for stream 1 (Video: h264): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options

无法找到流1的编解码器参数(视频:h264):未指定大小考虑增加“分析化”和“probesize”选项的值?

However, I think that is due to me not running an actual rtp at the moment of the test.

但是，我认为这是由于我在测试的时候没有运行实际的rtp。

In any case, what may be the reason for getting audio object type 3 not supported exception?

在任何情况下，获得音频对象类型3的原因可能不支持异常?

UPDATE - Oct 02, 2013

更新- 2013年10月02日

Static ffmpeg build gives the following flags:

静态ffmpeg构建给出了以下标志:

Static ffmpeg 2.0.1 build flag output:

静态ffmpeg 2.0.1构建标志输出:

ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers
  built on Sep 30 2013 22:24:00 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-54)
  configuration: --enable-gpl --enable-nonfree --enable-shared
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-avfilter --enable-pthreads --enable-x11grab --enable-vdpau --disable-avisynth --enable-libdc1394 --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libx264 --enable-libxavs --enable-libxvid --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --disable-stripping

My build is from ffmpeg 2.0.1 snapshot with the following flags:

我的构建来自ffmpeg 2.0.1快照，其中有以下标志:

--enable-static --disable-shared --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfaac --enable-libmp3lame --enable-libx264 --disable-symver --disable-doc --disable-ffplay --enable-ffmpeg --disable-ffprobe --disable-ffserver --disable-avdevice --disable-avfilter --disable-filters --disable-devices --disable-everything --enable-avformat --enable-avcodec --enable-muxers --enable-protocols --enable-parsers --enable-demuxers --enable-decoders --enable-encoders --enable-bsfs --enable-network --enable-swscale  --disable-demuxer=sbg --disable-demuxer=dts --disable-parser=dca --disable-decoder=dca --enable-asm --enable-pthreads --enable-version3

The fdk-aac library version I'm using:

我正在使用的fdk-aac库版本:

fdk-aac - 0.1.2

fdk-aac——0.1.2

So it seems that the same .sdp file causes Audio object type 3 error with my build but not with static but I really do not see what causes it (granted I am not an expert with ffmpeg API and may simply miss important details).

因此，似乎相同的。sdp文件会导致我的构建导致音频对象类型3错误，但不是静态的，但我确实不知道是什么原因造成的(当然，我不是ffmpeg API的专家，可能只是忽略了重要的细节)。

Simplified code for opening .sdp file that doesn't include error checks and logic separation:

打开。sdp文件的简化代码，不包括错误检查和逻辑分离:

AVFormatContext *inputCOntext= NULL;

av_register_all();
avformat_network_init();

avformat_open_input(&inputContext, "test.sdp", NULL, NULL);
avformat_find_stream_info(inputContext, NULL);

int inAudioStreamIdx = av_find_best_stream(inputContext, AVMEDIA_TYPE_AUDIO, -1, -1, NULL, 0);
AVStream *st = inputContext->streams[inAudioStreamIdx];

AVCodecContext *dec_ctx = st->codec;
AVCodec *dec = avcodec_find_decoder(dec_ctx->codec_id);

avcodec_open2(dec_ctx, dec, NULL); // Fails here with Audio object type 3

Am I opening the sdp input improperly?

我打开sdp输入不正确吗?

1 个解决方案