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prores: get data into block the correct way

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Signed-off-by: R <rqou@berkeley.edu>
This commit is contained in:
R 2022-04-06 04:07:44 -07:00 committed by Hector Martin
parent fbd63c4bc7
commit 846b1cb37b
1 changed files with 15 additions and 6 deletions
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21
proxyclient/experiments/prores.py
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@ -16,14 +16,23 @@ def divroundup(val, div):
def bswp16(x):
return (x >> 8) | ((x & 0xFF) << 8)
# ffmpeg -y -i prores-encode-large.png -c:v rawvideo -pix_fmt yuv444p16le prores-encode-large.yuv
im_W = 1920
im_H = 1080
with open('prores-encode-large.yuv', 'rb') as f:
# ffmpeg -y -i prores-encode-large.png -c:v rawvideo -pix_fmt yuv422p16le prores-encode-large.yuv
im_W = 800
im_H = 600
with open('prores-encode-smol.yuv', 'rb') as f:
im_data = f.read()
# assert len(im_data) == (im_W*2*im_H) * 3
assert len(im_data) == (im_W*2*im_H) * 2
image_data_luma = im_data[:im_W*2*im_H]
image_data_chroma = im_data[im_W*2*im_H:]
chroma_half = im_data[im_W*2*im_H:]
chroma_cb = chroma_half[:im_W*im_H]
chroma_cr = chroma_half[im_W*im_H:]
# image_data_chroma = im_data[im_W*2*im_H:]
image_data_chroma = b''
for y in range(im_H):
for x in range(im_W // 2):
image_data_chroma += chroma_cb[y*im_W+x*2:y*im_W+(x+1)*2]
image_data_chroma += chroma_cr[y*im_W+x*2:y*im_W+(x+1)*2]
p.pmgr_adt_clocks_enable(f'/arm-io/dart-apr0')
p.pmgr_adt_clocks_enable(f'/arm-io/apr0')