[FFmpeg-trac] #1294(undetermined:open): Support for Omneon AVC Intra 50/100 MXF OP1a files
FFmpeg
trac at avcodec.org
Sun Sep 23 02:46:31 CEST 2012
#1294: Support for Omneon AVC Intra 50/100 MXF OP1a files
-------------------------------------+-------------------------------------
Reporter: Thomas | Owner:
Mundt | Status: open
Type: defect | Component:
Priority: normal | undetermined
Version: git-master | Resolution:
Keywords: h264intra | Blocked By:
mxf | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 0 |
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Comment (by Thomas Mundt):
About 1) I think I´ve found the correct SPS now. But at all AVCI50/1080i
samples the DAR is set to 3/4. To me the patch is also necessary because I
often had material with wrong aspect ratio in the video header and correct
ar in the mxf header.
But I removed it from the avci-patch.
About 2) Thanks for the hint! Im not a good programmer. Actually the patch
works without that because the field order was set correct before in the
mov-decoder. It´s only necessary for the mxf-decoder.
I´m not shure if the 1080p/25 SPS/PPS will also work for 1080p/50. I
wanted to add a framerate check, but st->r_frame_rate didn´t work for mxf
files. I will try to get some AVID 1080/p50 files to see if it is
necessary at all.
btw: Since I can decode Panasonic AVCI now, is it possible to encode it
with ffmpeg by the knowledge of the SPS/PPS?
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1294#comment:18>
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