seiichiro/n900-encode
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Added posibility for CRF-Encoding

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Bitrate <= 51 will be treated as a CRF-Factor,
Bitrate > 52 will be treated as a constant bitrate.
This commit is contained in:
seiichiro 2012-03-23 18:41:38 +01:00
parent d27991cbd1
commit 89d9b96f9d
1 changed files with 10 additions and 2 deletions
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12
n900-encode.py
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@ -69,7 +69,7 @@ def main(argv):
elif opt in ("-a", "--abitrate"): elif opt in ("-a", "--abitrate"):
abitrate = int(arg) * 1000 abitrate = int(arg) * 1000
elif opt in ("-v", "--vbitrate"): elif opt in ("-v", "--vbitrate"):
vbitrate = int(arg) * 1000 vbitrate = int(arg)
elif opt in ("-t", "--threads"): elif opt in ("-t", "--threads"):
threads = arg threads = arg
elif opt in ("-f", "--force-overwrite"): elif opt in ("-f", "--force-overwrite"):
@ -193,6 +193,14 @@ def convert(input, output, res, abitrate, vbitrate, threads, mpopts):
# Define ffmpeg command for a/v encoding # Define ffmpeg command for a/v encoding
if (vbitrate > 51):
rmode = "-b:v"
vbitr = str(vbitrate*1000)
else
rmode = "-crf"
vbitr = vbitrate
ffmenc = [ ffbin, ffmenc = [ ffbin,
"-f", "yuv4mpegpipe", "-f", "yuv4mpegpipe",
"-i", vfifo, "-i", vfifo,
@ -206,7 +214,7 @@ def convert(input, output, res, abitrate, vbitrate, threads, mpopts):
"-threads", str(threads), "-threads", str(threads),
"-vprofile", "baseline", "-vprofile", "baseline",
"-tune", "animation", "-tune", "animation",
"-b:v", str(vbitrate), rmode, vbitr,
"-flags", "+loop", "-cmp", "+chroma", "-flags", "+loop", "-cmp", "+chroma",
"-partitions", "+parti4x4+partp8x8+partb8x8", "-partitions", "+parti4x4+partp8x8+partb8x8",
"-subq", "5", "-trellis", "1", "-refs", "1", "-subq", "5", "-trellis", "1", "-refs", "1",