Crash on resolution 1000x666

[Martin Panknin]

Hi everybody,

I ran into a strange issue when trying to convert an h264 input file that has a resolution of 1000x666. The problem is, ffmep2theora.exe just crashes without further error messages. Rescaling to either 1001x666 or 999x666 works fine.

I tried other files with different resolutions and they all worked fine, however, rescaling these other files to 1000x666 again causes the crash.

I'm using ffmpeg2theora 0.29-4-ga72baec.

I uploaded the first test file to http://data.redplant.de/upload/TA_1.1.mp4.
The second test file for rescaling is under http://data.redplant.de/upload/rescale_test.mp4

My command line and the respective output is as follows:
C:\Users\Martin_2\Desktop\ffmpeg_libvpx\ffmpeg>ffmpeg2theora.exe TA_1.1.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'TA_1.1.mp4':
  Metadata:
    major_brand : mp42
    minor_version : 0
    compatible_brands: mp42mp41
    creation_time : 2013-01-03 15:18:32
  Duration: 00:00:10.00, start: 0.040000, bitrate: 2382 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1000x666 [SAR 1:1 DAR 500:333], 2373 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
    Metadata:
      creation_time : 2013-01-03 15:18:32
      handler_name : Mainconcept MP4 Video Media Handler
  Pixel Aspect Ratio: 1.00/1 Frame Aspect Ratio: 1.50/1

C:\Users\Martin_2\Desktop\ffmpeg_libvpx\ffmpeg>ffmpeg2theora.exe rescale_test.mp4 -x 1000 -y 666
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'rescale_test.mp4':
  Metadata:
    major_brand : mp42
    minor_version : 0
    compatible_brands: mp42mp41
    creation_time : 2012-11-23 10:48:24
  Duration: 00:00:04.12, start: 0.000000, bitrate: 6760 kb/s
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 6647 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
    Metadata:
      creation_time : 2012-11-23 10:48:24
      handler_name : Mainconcept MP4 Video Media Handler
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 157 kb/s
    Metadata:
      creation_time : 2012-11-23 10:48:24
      handler_name : Mainconcept MP4 Sound Media Handler
  Resize: 1280x720 => 1000x666
[swscaler @ 003638E0] Warning: data is not aligned! This can lead to a speedloss

If you need further information, please let me know. If it turns out I'm using ffmpeg2theora incorrectly, then also please let me know.

Regards,
Martin