Ticket #8220: gdb-cinepakenc

Splitting the commandline.
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '3'.
Reading option '-stream_loop' ... matched as option 'stream_loop' (set number of times input stream shall be looped) with argument '23'.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-i' ... matched as input url with argument 'samples/webp/lossless_vec_1_4.webp'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0'.
Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-c:v:0' ... matched as option 'c' (codec name) with argument 'cinepak'.
Reading option '-c:v:52' ... matched as option 'c' (codec name) with argument 'text'.
Reading option '-disposition:s:8' ... matched as option 'disposition' (disposition) with argument 'adpcm_ms'.
Reading option '-disposition:v:213' ... matched as option 'disposition' (disposition) with argument 'r10k'.
Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to output) with argument '95'.
Reading option '-aframes' ... matched as option 'aframes' (set the number of audio frames to output) with argument '2'.
Reading option '-ab' ... matched as option 'ab' (audio bitrate (please use -b:a)) with argument '104k'.
Reading option '-strict' ...Routing option strict to both codec and muxer layer
 matched as AVOption 'strict' with argument '3'.
Reading option 'output/tmp.avs2' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option y (overwrite output files) with argument 1.
Applying option loglevel (set logging level) with argument 99.
Successfully parsed a group of options.
Parsing a group of options: input url samples/webp/lossless_vec_1_4.webp.
Applying option t (record or transcode "duration" seconds of audio/video) with argument 3.
Applying option stream_loop (set number of times input stream shall be looped) with argument 23.
Successfully parsed a group of options.
Opening an input file: samples/webp/lossless_vec_1_4.webp.
[NULL @ 0x61b000000080] Opening 'samples/webp/lossless_vec_1_4.webp' for reading
[file @ 0x6110000002c0] Setting default whitelist 'file,crypto'
Probing image2 score:50 size:50
Probing webp_pipe score:99 size:50
[webp_pipe @ 0x61b000000080] Format webp_pipe probed with size=2048 and score=99
[webp_pipe @ 0x61b000000080] Before avformat_find_stream_info() pos: 0 bytes read:50 seeks:0 nb_streams:1
[webp_pipe @ 0x61b000000080] parser not found for codec webp, packets or times may be invalid.
    Last message repeated 1 times
[webp_pipe @ 0x61b000000080] stream 0: start_time: -368934881474191040.000 duration: -368934881474191040.000
[webp_pipe @ 0x61b000000080] format: start_time: -9223372036854.775 duration: -9223372036854.775 (estimate from bit rate) bitrate=0 kb/s
[webp_pipe @ 0x61b000000080] After avformat_find_stream_info() pos: 50 bytes read:50 seeks:0 frames:1
Input #0, webp_pipe, from 'samples/webp/lossless_vec_1_4.webp':
  Duration: N/A, bitrate: N/A
    Stream #0:0, 1, 1/25: Video: webp, 1 reference frame, argb, 16x16, 0/1, lossless, 25 tbr, 25 tbn, 25 tbc
Successfully opened the file.
Parsing a group of options: output url output/tmp.avs2.
Applying option map (set input stream mapping) with argument 0.
Applying option c (codec name) with argument copy.
Applying option c:v:0 (codec name) with argument cinepak.
Applying option c:v:52 (codec name) with argument text.
Applying option disposition:s:8 (disposition) with argument adpcm_ms.
Applying option disposition:v:213 (disposition) with argument r10k.
Applying option vframes (set the number of video frames to output) with argument 95.
Applying option aframes (set the number of audio frames to output) with argument 2.
Applying option ab (audio bitrate (please use -b:a)) with argument 104k.
Successfully parsed a group of options.
Opening an output file: output/tmp.avs2.
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (output/tmp.avs2) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
[file @ 0x610000000640] Setting default whitelist 'file,crypto'
Successfully opened the file.
detected 48 logical cores
[New Thread 0x7ffff172f700 (LWP 40844)]
[New Thread 0x7ffff0f2e700 (LWP 40849)]
[New Thread 0x7ffff072d700 (LWP 40852)]
[New Thread 0x7fffeff2c700 (LWP 40858)]
[New Thread 0x7fffef72b700 (LWP 40863)]
[New Thread 0x7fffeef2a700 (LWP 40866)]
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[New Thread 0x7fffea721700 (LWP 40916)]
[New Thread 0x7fffe9f20700 (LWP 40917)]
Stream mapping:
  Stream #0:0 -> #0:0 (webp (native) -> cinepak (native))
Press [q] to stop, [?] for help
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
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    Last message repeated 1 times
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'video_size' to value '16x16'
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'pix_fmt' to value '25'
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'time_base' to value '1/25'
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'pixel_aspect' to value '0/1'
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'sws_param' to value 'flags=2'
[graph 0 input from stream 0:0 @ 0x611000001580] Setting 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x611000001580] w:16 h:16 pixfmt:argb tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
[format @ 0x611000001940] Setting 'pix_fmts' to value 'rgb24|gray'
[auto_scaler_0 @ 0x611000009280] Setting 'flags' to value 'bicubic'
[auto_scaler_0 @ 0x611000009280] w:iw h:ih flags:'bicubic' interl:0
[format @ 0x611000001940] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_null_0' and the filter 'format'
[AVFilterGraph @ 0x60e000000d40] query_formats: 5 queried, 3 merged, 1 already done, 0 delayed
[auto_scaler_0 @ 0x611000009280] picking rgb24 out of 2 ref:argb alpha:1
[swscaler @ 0x62f000000400] Forcing full internal H chroma due to input having non subsampled chroma
[auto_scaler_0 @ 0x611000009280] w:16 h:16 fmt:argb sar:0/1 -> w:16 h:16 fmt:rgb24 sar:0/1 flags:0x4
Output #0, avs2, to 'output/tmp.avs2':
  Metadata:
    encoder         : Lavf58.33.100
    Stream #0:0, 0, 1/25: Video: cinepak, 1 reference frame, rgb24, 16x16, 0/1, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
    Metadata:
      encoder         : Lavc58.59.101 cinepak
Clipping frame in rate conversion by 0.000008

Thread 1 "ffmpeg_usan" hit Breakpoint 1, encode_mode (s=0x6150000002c0, h=16, scratch_data=0x7fff00000010, scratch_linesize=0x7fffffffa850, 
    last_data=0x7fffffffa750, last_linesize=0x7fffffffa810, info=0x7fffffff7620, buf=0x61f000000e8c " ") at libavcodec/cinepakenc.c:602
602                         flags |= 1 << (31 - y + x);
(gdb) c
Continuing.
libavcodec/cinepakenc.c:602:32: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior libavcodec/cinepakenc.c:602:32 in 

Thread 1 "ffmpeg_usan" hit Breakpoint 1, encode_mode (s=0x6150000002c0, h=8, scratch_data=0x7fff00000008, scratch_linesize=0x7fffffffa850, 
    last_data=0x7fffffffa750, last_linesize=0x7fffffffa810, info=0x7fffffff7620, buf=0x61f000000e8c " ") at libavcodec/cinepakenc.c:602
602                         flags |= 1 << (31 - y + x);
(gdb) bt
#0  encode_mode (s=0x6150000002c0, h=8, scratch_data=0x7fff00000008, scratch_linesize=0x7fffffffa850, last_data=0x7fffffffa750, last_linesize=0x7fffffffa810, 
    info=0x7fffffff7620, buf=0x61f000000e8c " ") at libavcodec/cinepakenc.c:602
#1  0x000000000a453aed in rd_strip (y=0, s=<optimized out>, h=<optimized out>, keyframe=<optimized out>, last_data=<optimized out>, 
    last_linesize=<optimized out>, data=<optimized out>, linesize=<optimized out>, scratch_data=<optimized out>, scratch_linesize=<optimized out>, 
    buf=<optimized out>, best_score=<optimized out>) at libavcodec/cinepakenc.c:973
#2  rd_frame (s=<optimized out>, frame=<optimized out>, isakeyframe=<optimized out>, buf=<optimized out>, buf_size=0) at libavcodec/cinepakenc.c:1100
#3  0x000000000a44467e in cinepak_encode_frame (avctx=<optimized out>, pkt=0x60e000004480, frame=<optimized out>, got_packet=0x7fffffffad80)
    at libavcodec/cinepakenc.c:1161
#4  0x000000000b43ebad in avcodec_encode_video2 (avctx=0x619000003280, avpkt=<optimized out>, frame=0x61600003d280, got_packet_ptr=<optimized out>)
    at libavcodec/encode.c:302
#5  0x000000000b44b1c6 in do_encode (avctx=<optimized out>, frame=0x61600003d280, got_packet=0x7fffffffad80) at libavcodec/encode.c:371
#6  0x000000000b448ee7 in avcodec_send_frame (avctx=<optimized out>, frame=0x61600003d280) at libavcodec/encode.c:420
#7  0x0000000000a178d1 in do_video_out (of=0x60a0000002c0, ost=0x616000000f80, next_picture=0x61600003d280, sync_ipts=4.9406564584124654e-324)
    at fftools/ffmpeg.c:1287
#8  0x00000000009f818f in reap_filters (flush=0) at fftools/ffmpeg.c:1504
#9  0x0000000000848299 in transcode_step () at fftools/ffmpeg.c:4648
#10 transcode () at fftools/ffmpeg.c:4692
#11 0x000000000081cf60 in main (argc=<optimized out>, argv=<optimized out>) at fftools/ffmpeg.c:4894