DNxHD: Decode video returns wrong number of bytes

[maf]

Summary of the bug:
Value returned from dnxhd_decode_frame() is wrong. It only returns half of the buffer consumed.

The problem is that buf_size is not decremented in 2nd field iteration. The solution would be to move line:

  buf_size -= ctx->cid_table->coding_unit_size;

two lines up (before if() ).

[cehoyos]

Please send patches to ffmpeg-devel, they usually receive more attention there.

[michael]

Fixed in dae38a66ebd8a71aad51a29311f1c50df3ae3a2e