49     AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;  in main()  local
80     avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename);  in main()
81     if (!ofmt_ctx) {  in main()
94     ofmt = ofmt_ctx->oformat;  in main()
110         out_stream = avformat_new_stream(ofmt_ctx, NULL);  in main()
124     av_dump_format(ofmt_ctx, 0, out_filename, 1);  in main()
127         ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE);  in main()
134     ret = avformat_write_header(ofmt_ctx, NULL);  in main()
155         out_stream = ofmt_ctx->streams[pkt.stream_index];  in main()
163         log_packet(ofmt_ctx, &pkt, "out");  in main()
165         ret = av_interleaved_write_frame(ofmt_ctx, &pkt);  in main()
173     av_write_trailer(ofmt_ctx);  in main()
179     if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))  in main()
180         avio_closep(&ofmt_ctx->pb);  in main()
181     avformat_free_context(ofmt_ctx);  in main()