# gdb /usr/bin/ffmpeg CoreDump 
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Reading symbols from /usr/bin/ffmpeg...Reading symbols from /usr/lib/debug/.build-id/e9/c70ba6767df7f83de30a6803ff52cffd540bd3.debug...done.
done.
[New LWP 29937]
[New LWP 29938]

warning: .dynamic section for "/usr/lib/x86_64-linux-gnu/libavcodec.so.57" is not at the expected address (wrong library or version mismatch?)

warning: Could not load shared library symbols for 3 libraries, e.g. /usr/lib/x86_64-linux-gnu/libvo-amrwbenc.so.0.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `ffmpeg -f libdc1394 -video_size 640x480 -framerate 15 -i fw.0 -pix_fmt bgr24 -f'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  dc1394_v2_read_header (c=0xc98d81d380) at src/libavdevice/libdc1394.c:324
324	src/libavdevice/libdc1394.c: No such file or directory.
[Current thread is 1 (Thread 0x7f6f7590f000 (LWP 29937))]
(gdb) bt full
#0  dc1394_v2_read_header (c=0xc98d81d380) at src/libavdevice/libdc1394.c:324
        dc1394 = 0xc98d81dc60
        list = 0xc98d7bdfc0
        res = <optimized out>
        i = <optimized out>
        fmt = 0x7f6f7560a770 <dc1394_frame_formats+48>
        fps = 0x7f6f7560a6f8 <dc1394_frame_rates+24>
#1  0x00007f6f74ebc616 in avformat_open_input () from /usr/lib/x86_64-linux-gnu/libavformat.so.57
No symbol table info available.
#2  0x000000c98d4722bc in open_input_file (o=o@entry=0x7ffcfd690ea0, filename=<optimized out>) at src/ffmpeg_opt.c:991
        f = <optimized out>
        ic = 0xc98d81d380
        file_iformat = 0x7f6f75815800 <ff_libdc1394_demuxer>
        err = <optimized out>
        i = <optimized out>
        ret = <optimized out>
        timestamp = <optimized out>
        opts = 0xc98d481acf <term_init+95>
        unused_opts = 0x0
        e = 0x0
        orig_nb_streams = <optimized out>
        video_codec_name = <optimized out>
        audio_codec_name = <optimized out>
        subtitle_codec_name = <optimized out>
        data_codec_name = <optimized out>
        scan_all_pmts_set = 1
#3  0x000000c98d47418e in open_files (l=0xc98d81d138, l=0xc98d81d138, open_file=0xc98d4707c0 <open_input_file>, inout=0xc98d48cf93 "input") at src/ffmpeg_opt.c:3203
        g = 0xc98d81d1a0
        o = {g = 0xc98d81d1a0, start_time = -9223372036854775808, start_time_eof = -9223372036854775808, seek_timestamp = 0, format = 0xc98d7a7350 "libdc1394", codec_names = 0x0, nb_codec_names = 0, 
          audio_channels = 0x0, nb_audio_channels = 0, audio_sample_rate = 0x0, nb_audio_sample_rate = 0, frame_rates = 0x0, nb_frame_rates = 0, frame_sizes = 0x0, nb_frame_sizes = 0, frame_pix_fmts = 0x0, 
          nb_frame_pix_fmts = 0, input_ts_offset = 0, loop = 0, rate_emu = 0, accurate_seek = 1, thread_queue_size = 0, ts_scale = 0x0, nb_ts_scale = 0, dump_attachment = 0x0, nb_dump_attachment = 0, 
          hwaccels = 0x0, nb_hwaccels = 0, hwaccel_devices = 0x0, nb_hwaccel_devices = 0, hwaccel_output_formats = 0x0, nb_hwaccel_output_formats = 0, autorotate = 0x0, nb_autorotate = 0, stream_maps = 0x0, 
          nb_stream_maps = 0, audio_channel_maps = 0x0, nb_audio_channel_maps = 0, metadata_global_manual = 0, metadata_streams_manual = 0, metadata_chapters_manual = 0, attachments = 0x0, nb_attachments = 0, 
          chapters_input_file = 2147483647, recording_time = 9223372036854775807, stop_time = 9223372036854775807, limit_filesize = 18446744073709551615, mux_preload = 0, mux_max_delay = 0.699999988, 
          shortest = 0, video_disable = 0, audio_disable = 0, subtitle_disable = 0, data_disable = 0, streamid_map = 0x0, nb_streamid_map = 0, metadata = 0x0, nb_metadata = 0, max_frames = 0x0, 
          nb_max_frames = 0, bitstream_filters = 0x0, nb_bitstream_filters = 0, codec_tags = 0x0, nb_codec_tags = 0, sample_fmts = 0x0, nb_sample_fmts = 0, qscale = 0x0, nb_qscale = 0, forced_key_frames = 0x0, 
          nb_forced_key_frames = 0, force_fps = 0x0, nb_force_fps = 0, frame_aspect_ratios = 0x0, nb_frame_aspect_ratios = 0, rc_overrides = 0x0, nb_rc_overrides = 0, intra_matrices = 0x0, 
          nb_intra_matrices = 0, inter_matrices = 0x0, nb_inter_matrices = 0, chroma_intra_matrices = 0x0, nb_chroma_intra_matrices = 0, top_field_first = 0x0, nb_top_field_first = 0, metadata_map = 0x0, 
          nb_metadata_map = 0, presets = 0x0, nb_presets = 0, copy_initial_nonkeyframes = 0x0, nb_copy_initial_nonkeyframes = 0, copy_prior_start = 0x0, nb_copy_prior_start = 0, filters = 0x0, nb_filters = 0, 
          filter_scripts = 0x0, nb_filter_scripts = 0, reinit_filters = 0x0, nb_reinit_filters = 0, fix_sub_duration = 0x0, nb_fix_sub_duration = 0, canvas_sizes = 0x0, nb_canvas_sizes = 0, pass = 0x0, 
          nb_pass = 0, passlogfiles = 0x0, nb_passlogfiles = 0, max_muxing_queue_size = 0x0, nb_max_muxing_queue_size = 0, guess_layout_max = 0x0, nb_guess_layout_max = 0, apad = 0x0, nb_apad = 0, 
          discard = 0x0, nb_discard = 0, disposition = 0x0, nb_disposition = 0, program = 0x0, nb_program = 0, time_bases = 0x0, nb_time_bases = 0}
        i = 0
        ret = 0
#4  ffmpeg_parse_options (argc=<optimized out>, argv=<optimized out>) at src/ffmpeg_opt.c:3243
        octx = {global_opts = {group_def = 0xc98d693f60 <global_group>, arg = 0xc98d48ccd7 "", opts = 0x0, nb_opts = 0, codec_opts = 0x0, format_opts = 0x0, resample_opts = 0x0, sws_dict = 0x0, 
            swr_opts = 0x0}, groups = 0xc98d81d120, nb_groups = 2, cur_group = {group_def = 0x0, arg = 0x0, opts = 0x0, nb_opts = 0, codec_opts = 0x0, format_opts = 0x0, resample_opts = 0x0, sws_dict = 0x0, 
            swr_opts = 0x0}}
        error = "k\200H\215\311\000\000\000\360\302\027to\177\000\000\002\000\000\000\000\000\000\000=oF\215\311", '\000' <repeats 11 times>, "x\033i\375\374\177\000\000\016\000\000\000\016\000\000\000 Ei\215\311\000\000\000\361\320H\215\311\000\000\000\306\311H\215\311\000\000\000\016\000\000\000\000\000\000\000\000\070\aRC+8\317 Ei\215\311\000\000\000\236\203F\215\311\000\000\000\005\000\000\000\000\000\000\000d\000\000\000\000\000\000"
        ret = <optimized out>
#5  0x000000c98d4624e1 in main (argc=14, argv=0x7ffcfd691b78) at src/ffmpeg.c:4760
        ret = <optimized out>
        ti = <optimized out>
(gdb) frame 0
#0  dc1394_v2_read_header (c=0xc98d81d380) at src/libavdevice/libdc1394.c:324
324	in src/libavdevice/libdc1394.c
(gdb) p *dc1394
$1 = {class = 0x7f6f75813860 <libdc1394_class>, d = 0xc98d81e7b0, camera = 0x0, frame = 0x0, current_frame = 0, frame_rate = 15000, video_size = 0xc98d7a77f0 "640x480", pixel_format = 0xc98d7a7650 "uyvy422", 
  framerate = 0xc98d7a7a30 "15", size = 614400, stream_index = 0}