h.264

I am using Microsoft Media Foundation to encode a H.264 video file. I am using the SinkWriter to create the video file. The input is a buffer ( MFVideoFormat_RGB32 ) where I draw the frames and the output is a MFVideoFormat_H264 . The encoding works and it creates a video file with my frames in it. But I want to set the quality for that video file. More specifically, I want to set the CODECAPI_AVEncCommonQuality property on the H.264 encoder. In order to get a handle to the H.264 encoder, I call GetServiceForStream on the SinkWriter. Then I set the CODECAPI_AVEncCommonQuality property. The

With a bit of digging, I have found a library that extracts NAL units from .mp4 file while it is being written. I'm attempting to packetize this information to flv over RTMP using libavformat and libavcodec . I setup a video stream using: -(void)setupVideoStream { int ret = 0; videoCodec = avcodec_find_decoder(STREAM_VIDEO_CODEC); if (videoCodec == nil) { NSLog(@"Could not find encoder %i", STREAM_VIDEO_CODEC); return; } videoStream = avformat_new_stream(oc, videoCodec); videoCodecContext = videoStream->codec; videoCodecContext->codec_type = AVMEDIA_TYPE_VIDEO; videoCodecContext->codec_id =

I followed this post to decode my h264 video stream frames. My data frames as bellow: My code: NSString * const naluTypesStrings[] = { @"0: Unspecified (non-VCL)", @"1: Coded slice of a non-IDR picture (VCL)", // P frame @"2: Coded slice data partition A (VCL)", @"3: Coded slice data partition B (VCL)", @"4: Coded slice data partition C (VCL)", @"5: Coded slice of an IDR picture (VCL)", // I frame @"6: Supplemental enhancement information (SEI) (non-VCL)", @"7: Sequence parameter set (non-VCL)", // SPS parameter @"8: Picture parameter set (non-VCL)", // PPS parameter @"9: Access unit delimiter

I have an h.264 encoded stream of video on my server (node.js) and I want to use ffmpeg to convert it to an MP4 stream. Then I want to pipe that MP4 stream from the child process to the client using the response of an HTTP server that I have set up. I am very confused about all the options ffmpeg has and not sure how to pipe the output of the child process to the HTTP response. I have tried several combinations of ffmpeg options but the video does not play in the browser (or show any sign of receiving data) and I don't know if I am converting it to MP4 corretly. I am also not sure I am piping

I want to make a backup frame (AVFrame) from a special frame(let's say pic ). So, I have written AVFrame* bkf = avcodec_alloc_frame(); memcpy(bkf,pic,sizeof(AVFrame)); bkf->extended_data = pic->extended_data; bkf->linesize[0] = pic->linesize[0]; memcpy(bkf->data, pic->data, sizeof(pic->data)); bkf->reordered_opaque = pic->reordered_opaque; bkf->sample_rate = pic->sample_rate; bkf->channel_layout = pic->channel_layout; bkf->pkt_pts = pic->pkt_pts; bkf->pkt_pos = pic->pkt_pos; bkf->width = pic->width; bkf->format = pic ->format; to copy pic to bkf . But after running, I saw a lot of distortion.