mjpeg: Do not fail jpeg decoding on bad EXIF data.

It is not required to correctly decode the image.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
mjpeg: cosmetics: indentation

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
avcodec/roqvideoenc: use av_malloc(z)_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/smacker: use av_mallocz_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/qtrleenc: use av_mallocz_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>