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FFmpeg/tests/ref

History

Marton Balint 00117e28c1 avutil/timecode: fix av_timecode_get_smpte_from_framenum with 50/60 fps ... SMPTE 12M timecode can only count frames up to 39, because the tens-of-frames value is stored in 2 bit. In order to resolve this 50/60 fps SMPTE timecode is using the field bit (which is the same bit as the phase correction bit) to signal the least significant bit of a 50/60 fps timecode. See SMPTE ST 12-1:2014 section 12.1. Therefore we slightly change the format of the return value of av_timecode_get_smpte_from_framenum and AV_FRAME_DATA_S12M_TIMECODE and start using the previously unused Phase Correction bit as Field bit. (As the SMPTE standard suggests) We add 50/60 fps support to av_timecode_get_smpte_from_framenum by calling the recently added av_timecode_get_smpte function in it which already handles this properly. This change affects the decklink indev and the DV and MXF muxers. MXF has no fate test for 50/60fps content, DV does, therefore the changes. MediaInfo (a recent version) confirms that half-frame timecode must be inserted to DV. MXFInspect confirms valid timecode insertion to the System Item of MXF files. For MXF, also see EBU R122. Note that for DV the field flag is not used because in the HDV specs (SMPTE 370M) it is still defined as biphase mark polarity correction flag. So it should not matter that the DV muxer overrides the field bit. Signed-off-by: Marton Balint <cus@passwd.hu>		4 years ago
..
acodec	…
fate	avcodec: add AV1 hardware accelerated decoder	4 years ago
lavf	…
lavf-fate	avcodec: add AV1 hardware accelerated decoder	4 years ago
pixfmt	…
seek	…
vsynth	avutil/timecode: fix av_timecode_get_smpte_from_framenum with 50/60 fps	4 years ago
vsynth1	…
vsynth_lena	…