54     AVFormatContext *oc;  in webm_chunk_init()  local
77     oc = wc->avf;  in webm_chunk_init()
79     ff_format_set_url(oc, wc->header_filename);  in webm_chunk_init()
82     oc->interrupt_callback    = s->interrupt_callback;  in webm_chunk_init()
83     oc->max_delay             = s->max_delay;  in webm_chunk_init()
84     oc->flags                 = s->flags & ~AVFMT_FLAG_FLUSH_PACKETS;  in webm_chunk_init()
85     oc->strict_std_compliance = s->strict_std_compliance;  in webm_chunk_init()
86     oc->avoid_negative_ts     = s->avoid_negative_ts;  in webm_chunk_init()
88     oc->flush_packets         = 0;  in webm_chunk_init()
90     if ((ret = av_dict_copy(&oc->metadata, s->metadata, 0)) < 0)  in webm_chunk_init()
93     if (!(st = avformat_new_stream(oc, NULL)))  in webm_chunk_init()
108     ret = s->io_open(s, &oc->pb, oc->url, AVIO_FLAG_WRITE, &dict);  in webm_chunk_init()
112     oc->pb->seekable = 0;  in webm_chunk_init()
120     ret = avformat_init_output(oc, &dict);  in webm_chunk_init()
133     s->avoid_negative_ts  = oc->avoid_negative_ts;  in webm_chunk_init()
135         oc->internal->avoid_negative_ts_use_pts;  in webm_chunk_init()
136     oc->avoid_negative_ts = 0;  in webm_chunk_init()
158     AVFormatContext *oc = wc->avf;  in webm_chunk_write_header()  local
161     ret = avformat_write_header(oc, NULL);  in webm_chunk_write_header()
162     ff_format_io_close(s, &oc->pb);  in webm_chunk_write_header()
172     AVFormatContext *oc = wc->avf;  in chunk_start()  local
175     ret = avio_open_dyn_buf(&oc->pb);  in chunk_start()
185     AVFormatContext *oc = wc->avf;  in chunk_end()  local
193     if (!oc->pb)  in chunk_end()
198         av_write_frame(oc, NULL);  in chunk_end()
199     buffer_size = avio_close_dyn_buf(oc->pb, &buffer);  in chunk_end()
200     oc->pb = NULL;  in chunk_end()
221     AVFormatContext *oc = wc->avf;  in webm_chunk_write_packet()  local
236     if (!oc->pb || (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&  in webm_chunk_write_packet()
247     return av_write_frame(oc, pkt);  in webm_chunk_write_packet()
253     AVFormatContext *oc = wc->avf;  in webm_chunk_write_trailer()  local
256     if (!oc->pb) {  in webm_chunk_write_trailer()
261     ret = av_write_trailer(oc);  in webm_chunk_write_trailer()