61     AVFormatContext *sub_ctx;  member
1136         if (!(ast->sub_ctx = avformat_alloc_context()))  in read_gab2_sub()
1139         ast->sub_ctx->pb = pb;  in read_gab2_sub()
1141         if (ff_copy_whiteblacklists(ast->sub_ctx, s) < 0)  in read_gab2_sub()
1144         if (!avformat_open_input(&ast->sub_ctx, "", sub_demuxer, NULL)) {  in read_gab2_sub()
1145             if (ast->sub_ctx->nb_streams != 1)  in read_gab2_sub()
1147             ff_read_packet(ast->sub_ctx, ast->sub_pkt);  in read_gab2_sub()
1148             avcodec_parameters_copy(st->codecpar, ast->sub_ctx->streams[0]->codecpar);  in read_gab2_sub()
1149             time_base = ast->sub_ctx->streams[0]->time_base;  in read_gab2_sub()
1159         av_freep(&ast->sub_ctx);  in read_gab2_sub()
1193         if (ff_read_packet(ast->sub_ctx, ast->sub_pkt) < 0)  in get_subtitle_pkt()
1817     if (avformat_seek_file(ast2->sub_ctx, 0, INT64_MIN, ts2, ts2, 0) >= 0 ||  in seek_subtitle()
1818         avformat_seek_file(ast2->sub_ctx, 0, ts2, ts2, INT64_MAX, 0) >= 0)  in seek_subtitle()
1819         ff_read_packet(ast2->sub_ctx, ast2->sub_pkt);  in seek_subtitle()
1889         if (ast2->sub_ctx) {  in avi_read_seek()
1915         if (ast2->sub_ctx || st2->nb_index_entries <= 0)  in avi_read_seek()
1948             if (ast->sub_ctx) {  in avi_read_close()
1949                 av_freep(&ast->sub_ctx->pb);  in avi_read_close()
1950                 avformat_close_input(&ast->sub_ctx);  in avi_read_close()