(三)最后,分享一下ffmpeg demux MP4文件后,转换视频流为live555可直接使用的h264 ES流的经验和方法: 针对(avc1),av_read_frame后,取前四个字节为长度,把前四字节直接替换为0×00,0×00,0×00,0×01即可,但注意每个frame可以有多个NAUL: AVPacket pkt ; AVPacket * packet = &pkt ; av_init_packet (...
hdr: AVIDEOINFOHEADER2structure that describes the bitstream. No color table is present after theBITMAPINFOHEADERportion of the structure, andbiClrUsedmust be zero. dwStartTimeCode: Not used. Set to zero. cbSequenceHeader: The length of thedwSequenceHeaderarray in bytes. dwProfile: Specifies the...
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针对(avc1),av_read_frame后,取前四个字节为长度,把前四字节直接替换为0×00,0×00,0×00,0×01即可,但注意每个frame可以有多个NAUL: AVPacket pkt; AVPacket* packet=&pkt; av_init_packet(packet); av_read_frame(ctx, packet); if(packet->stream_index==0) {//is video stream constchar start...
hdr: AVIDEOINFOHEADER2structure that describes the bitstream. No color table is present after theBITMAPINFOHEADERportion of the structure, andbiClrUsedmust be zero. dwStartTimeCode: Not used. Set to zero. cbSequenceHeader: The length of thedwSequenceHeaderarray in bytes. ...