lavc/codec_desc: add/fix .props for SGI/DPX/X-face/BRender PIX image

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avcodec: add ff_frame_get_metadatap()

This is needed for av_dict_*

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doc/examples/demuxing: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffprobe: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ac3dec: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
tiff: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
cpia: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
gifdec: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pngdec: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/rawdec: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/utils: use AVFrame accessor functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffplay: use AVFrame accessor functions

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