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Add mAudioCodecContext and mAudioCodec and turn existing into video 

versions. Check if audio stream available and check audio stream codec
same as video is being checked now. Was Seg faulting if no audio stream.
This commit is contained in:
Steve Gilvarry 2016-09-06 01:27:57 +10:00
parent 957c8fbdbf
commit e40acc301d
1 changed files with 46 additions and 28 deletions
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68
src/zm_ffmpeg_camera.cpp
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@ -50,8 +50,10 @@ FfmpegCamera::FfmpegCamera( int p_id, const std::string &p_path, const std::stri
mFormatContext = NULL;
mVideoStreamId = -1;
mAudioStreamId = -1;
mCodecContext = NULL;
mCodec = NULL;
mVideoCodecContext = NULL;
mAudioCodecContext = NULL;
mVideoCodec = NULL;
mAudioCodec = NULL;
mRawFrame = NULL;
mFrame = NULL;
frameCount = 0;
@ -170,9 +172,9 @@ int FfmpegCamera::Capture( Image &image )
// What about audio stream? Maybe someday we could do sound detection...
if ( packet.stream_index == mVideoStreamId ) {
#if LIBAVCODEC_VERSION_CHECK(52, 23, 0, 23, 0)
if ( avcodec_decode_video2( mCodecContext, mRawFrame, &frameComplete, &packet ) < 0 )
if (avcodec_decode_video2(mVideoCodecContext, mRawFrame, &frameComplete, &packet) < 0)
#else
if ( avcodec_decode_video( mCodecContext, mRawFrame, &frameComplete, packet.data, packet.size ) < 0 )
if (avcodec_decode_video(mVideoCodecContext, mRawFrame, &frameComplete, packet.data, packet.size) < 0)
#endif
Fatal( "Unable to decode frame at frame %d", frameCount );
@ -200,14 +202,18 @@ int FfmpegCamera::Capture( Image &image )
#if HAVE_LIBSWSCALE
if(mConvertContext == NULL) {
mConvertContext = sws_getContext( mCodecContext->width, mCodecContext->height, mCodecContext->pix_fmt, width, height, imagePixFormat, SWS_BICUBIC, NULL, NULL, NULL );
mConvertContext = sws_getContext(mVideoCodecContext->width,
mVideoCodecContext->height,
mVideoCodecContext->pix_fmt,
width, height, imagePixFormat,
SWS_BICUBIC, NULL, NULL, NULL);
if(mConvertContext == NULL)
Fatal( "Unable to create conversion context for %s", mPath.c_str() );
}
if ( sws_scale( mConvertContext, mRawFrame->data, mRawFrame->linesize, 0, mCodecContext->height, mFrame->data, mFrame->linesize ) < 0 )
Fatal( "Unable to convert raw format %u to target format %u at frame %d", mCodecContext->pix_fmt, imagePixFormat, frameCount );
if (sws_scale(mConvertContext, mRawFrame->data, mRawFrame->linesize, 0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) < 0)
Fatal("Unable to convert raw format %u to target format %u at frame %d", mVideoCodecContext->pix_fmt, imagePixFormat, frameCount);
#else // HAVE_LIBSWSCALE
Fatal( "You must compile ffmpeg with the --enable-swscale option to use ffmpeg cameras" );
#endif // HAVE_LIBSWSCALE
@ -347,23 +353,35 @@ int FfmpegCamera::OpenFfmpeg() {
Debug ( 3, "Found video stream at index %d", mVideoStreamId );
Debug ( 3, "Found audio stream at index %d", mAudioStreamId );
mCodecContext = mFormatContext->streams[mVideoStreamId]->codec;
mVideoCodecContext = mFormatContext->streams[mVideoStreamId]->codec;
// Try and get the codec from the codec context
if ( (mCodec = avcodec_find_decoder( mCodecContext->codec_id )) == NULL )
if ((mVideoCodec = avcodec_find_decoder(mVideoCodecContext->codec_id)) == NULL) {
Fatal("Can't find codec for video stream from %s", mPath.c_str());
Debug ( 1, "Found decoder" );
} else {
Debug(1, "Video Found decoder");
zm_dump_stream_format(mFormatContext, mVideoStreamId, 0, 0);
}
if (mAudioStreamId >= 0) {
mAudioCodecContext = mFormatContext->streams[mAudioStreamId]->codec;
if ((mAudioCodec = avcodec_find_decoder(mAudioCodecContext->codec_id)) == NULL) {
Debug(1, "Can't find codec for audio stream from %s", mPath.c_str());
} else {
Debug(1, "Audio Found decoder");
zm_dump_stream_format(mFormatContext, mAudioStreamId, 0, 0);
}
}
//
// Open the codec
#if !LIBAVFORMAT_VERSION_CHECK(53, 8, 0, 8, 0)
Debug ( 1, "Calling avcodec_open" );
if ( avcodec_open( mCodecContext, mCodec ) < 0 )
if (avcodec_open(mVideoCodecContext, mVideoCodec) < 0)
#else
Debug ( 1, "Calling avcodec_open2" );
if ( avcodec_open2( mCodecContext, mCodec, 0 ) < 0 )
if (avcodec_open2(mVideoCodecContext, mVideoCodec, 0) < 0)
#endif
Fatal( "Unable to open codec for video stream from %s", mPath.c_str() );
@ -402,8 +420,8 @@ int FfmpegCamera::OpenFfmpeg() {
#if HAVE_LIBSWSCALE
Debug ( 1, "Calling sws_isSupportedInput" );
if(!sws_isSupportedInput(mCodecContext->pix_fmt)) {
Fatal("swscale does not support the codec format: %c%c%c%c",(mCodecContext->pix_fmt)&0xff,((mCodecContext->pix_fmt>>8)&0xff),((mCodecContext->pix_fmt>>16)&0xff),((mCodecContext->pix_fmt>>24)&0xff));
if (!sws_isSupportedInput(mVideoCodecContext->pix_fmt)) {
Fatal("swscale does not support the codec format: %c%c%c%c", (mVideoCodecContext->pix_fmt)&0xff, ((mVideoCodecContext->pix_fmt >> 8)&0xff), ((mVideoCodecContext->pix_fmt >> 16)&0xff), ((mVideoCodecContext->pix_fmt >> 24)&0xff));
}
if(!sws_isSupportedOutput(imagePixFormat)) {
@ -454,10 +472,10 @@ int FfmpegCamera::CloseFfmpeg(){
}
#endif
if ( mCodecContext )
if (mVideoCodecContext)
{
avcodec_close( mCodecContext );
mCodecContext = NULL; // Freed by av_close_input_file
avcodec_close(mVideoCodecContext);
mVideoCodecContext = NULL; // Freed by av_close_input_file
}
if ( mFormatContext )
{
@ -532,7 +550,7 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
AVPacket packet;
AVPacket queued_packet;
if ( mCodecContext->codec_id != AV_CODEC_ID_H264 ) {
if (mVideoCodecContext->codec_id != AV_CODEC_ID_H264) {
Error( "Input stream is not h264. The stored event file may not be viewable in browser." );
}
@ -637,7 +655,7 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
if ( packet.stream_index == mVideoStreamId ) {
#if LIBAVCODEC_VERSION_CHECK(52, 23, 0, 23, 0)
if ( avcodec_decode_video2( mCodecContext, mRawFrame, &frameComplete, &packet ) < 0 )
if (avcodec_decode_video2(mVideoCodecContext, mRawFrame, &frameComplete, &packet) < 0)
#else
if ( avcodec_decode_video( mCodecContext, mRawFrame, &frameComplete, packet.data, packet.size ) < 0 )
#endif
@ -670,9 +688,9 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
#if HAVE_LIBSWSCALE
if ( mConvertContext == NULL ) {
mConvertContext = sws_getContext(mCodecContext->width,
mCodecContext->height,
mCodecContext->pix_fmt,
mConvertContext = sws_getContext(mVideoCodecContext->width,
mVideoCodecContext->height,
mVideoCodecContext->pix_fmt,
width, height,
imagePixFormat, SWS_BICUBIC, NULL,
NULL, NULL);
@ -681,9 +699,9 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
}
if (sws_scale(mConvertContext, mRawFrame->data, mRawFrame->linesize,
0, mCodecContext->height, mFrame->data, mFrame->linesize) < 0)
0, mVideoCodecContext->height, mFrame->data, mFrame->linesize) < 0)
Fatal("Unable to convert raw format %u to target format %u at frame %d",
mCodecContext->pix_fmt, imagePixFormat, frameCount);
mVideoCodecContext->pix_fmt, imagePixFormat, frameCount);
#else // HAVE_LIBSWSCALE
Fatal( "You must compile ffmpeg with the --enable-swscale option to use ffmpeg cameras" );
#endif // HAVE_LIBSWSCALE