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bring recent improvements in ffmpeg capture function into captureandrecord

This commit is contained in:
SteveGilvarry 2015-03-22 21:02:02 +11:00
parent fd94d22b0e
commit b587222ce5
1 changed files with 54 additions and 20 deletions
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74
src/zm_ffmpeg_camera.cpp
View File

@ -472,9 +472,27 @@ void *FfmpegCamera::ReopenFfmpegThreadCallback(void *ctx){
//Function to handle capture and store
int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_file )
{
if (!mCanCapture){
return -1;
}
// If the reopen thread has a value, but mCanCapture != 0, then we have just reopened the connection to the ffmpeg device, and we can clean up the thread.
if (mReopenThread != 0) {
void *retval = 0;
int ret;
ret = pthread_tryjoin_np(mReopenThread, &retval);
if (ret != 0){
Error("Could not join reopen thread.");
}
Info( "Successfully reopened stream." );
mReopenThread = 0;
}
AVPacket packet;
uint8_t* directbuffer;
/* Request a writeable buffer of the target image */
directbuffer = image.WriteBuffer(width, height, colours, subpixelorder);
if(directbuffer == NULL) {
@ -488,18 +506,34 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
int avResult = av_read_frame( mFormatContext, &packet );
if ( avResult < 0 )
{
Error( "Unable to read packet from stream %d: error %d", packet.stream_index, avResult );
av_free_packet( &packet );
char errbuf[AV_ERROR_MAX_STRING_SIZE];
av_strerror(avResult, errbuf, AV_ERROR_MAX_STRING_SIZE);
if (
// Check if EOF.
(avResult == AVERROR_EOF || (mFormatContext->pb && mFormatContext->pb->eof_reached)) ||
// Check for Connection failure.
(avResult == -110)
)
{
Info( "av_read_frame returned \"%s\". Reopening stream.", errbuf);
ReopenFfmpeg();
}
Error( "Unable to read packet from stream %d: error %d \"%s\".", packet.stream_index, avResult, errbuf );
return( -1 );
}
Debug( 5, "Got packet from stream %d", packet.stream_index );
if ( packet.stream_index == mVideoStreamId )
{
if ( avcodec_decode_video2( mCodecContext, mRawFrame, &frameComplete, &packet ) < 0 )
#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(52, 25, 0)
if ( avcodec_decode_video2( mCodecContext, mRawFrame, &frameComplete, &packet ) < 0 )
#else
if ( avcodec_decode_video( mCodecContext, mRawFrame, &frameComplete, packet.data, packet.size ) < 0 )
#endif
Fatal( "Unable to decode frame at frame %d", frameCount );
Debug( 4, "Decoded video packet at frame %d", frameCount );
if ( frameComplete )
{
Debug( 3, "Got frame %d", frameCount );
@ -547,22 +581,22 @@ int FfmpegCamera::CaptureAndRecord( Image &image, bool recording, char* event_fi
}
#if HAVE_LIBSWSCALE
if(mConvertContext == NULL) {
if(config.cpu_extensions && sseversion >= 20) {
mConvertContext = sws_getContext( mCodecContext->width, mCodecContext->height, mCodecContext->pix_fmt, width, height, imagePixFormat, SWS_BICUBIC | SWS_CPU_CAPS_SSE2, NULL, NULL, NULL );
} else {
mConvertContext = sws_getContext( mCodecContext->width, mCodecContext->height, mCodecContext->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(mConvertContext == NULL) {
if(config.cpu_extensions && sseversion >= 20) {
mConvertContext = sws_getContext( mCodecContext->width, mCodecContext->height, mCodecContext->pix_fmt, width, height, imagePixFormat, SWS_BICUBIC | SWS_CPU_CAPS_SSE2, NULL, NULL, NULL );
} else {
mConvertContext = sws_getContext( mCodecContext->width, mCodecContext->height, mCodecContext->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 );
#else // HAVE_LIBSWSCALE
Fatal( "You must compile ffmpeg with the --enable-swscale option to use ffmpeg cameras" );
Fatal( "You must compile ffmpeg with the --enable-swscale option to use ffmpeg cameras" );
#endif // HAVE_LIBSWSCALE
frameCount++;
}
}else if(packet.stream_index == mAudioStreamId){//FIXME best way to copy all other streams