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added video rotation support to copy and encoding ffmpeg #36

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added video rotation support to copy and encoding ffmpeg #36

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38 changes: 33 additions & 5 deletions main.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,21 @@ local function next_table_key(t, current)
return keys[1]
end

local function get_transpose(rotate_value)
if rotate_value == 90 then
return "transpose=clock"
end
if rotate_value == 180 then
return "hflip"
end

if rotate_value == 270 then
return "transpose=cclock"
end

return nil
end

ACTIONS = {}

ACTIONS.COPY = function(d)
Expand All @@ -66,12 +81,19 @@ ACTIONS.COPY = function(d)
"-ss", d.start_time,
"-t", d.duration,
"-i", d.inpath,
"-c", "copy",
"-map", "0",
"-dn",
"-avoid_negative_ts", "make_zero",
utils.join_path(d.indir, "COPY_" .. d.channel .. "_" .. d.infile_noext .. "_FROM_" .. d.start_time_hms .. "_TO_" .. d.end_time_hms .. d.ext)
"-avoid_negative_ts", "make_zero"
}
local transpose = get_transpose(d.rotation)
if transpose ~= nil then
table.insert(args, "-vf")
table.insert(args, transpose)
else
table.insert(args, "-c")
table.insert(args, "copy")
end
table.insert(args, utils.join_path(d.indir, "COPY_" .. d.channel .. "_" .. d.infile_noext .. "_FROM_" .. d.start_time_hms .. "_TO_" .. d.end_time_hms .. d.ext))
mp.command_native_async({
name = "subprocess",
args = args,
Expand All @@ -89,9 +111,14 @@ ACTIONS.ENCODE = function(d)
"-i", d.inpath,
"-pix_fmt", "yuv420p",
"-crf", "16",
"-preset", "superfast",
utils.join_path(d.indir, "ENCODE_" .. d.channel .. "_" .. d.infile_noext .. "_FROM_" .. d.start_time_hms .. "_TO_" .. d.end_time_hms .. d.ext)
"-preset", "superfast"
}
local transpose = get_transpose(d.rotation)
if transpose ~= nil then
table.insert(args, "-vf")
table.insert(args, transpose)
end
table.insert(args, utils.join_path(d.indir, "ENCODE_" .. d.channel .. "_" .. d.infile_noext .. "_FROM_" .. d.start_time_hms .. "_TO_" .. d.end_time_hms .. d.ext))
mp.command_native_async({
name = "subprocess",
args = args,
Expand Down Expand Up @@ -156,6 +183,7 @@ local function get_data()
d.infile_noext = mp.get_property("filename/no-ext")
d.ext = mp.get_property("filename"):match("^.+(%..+)$") or ".mp4"
d.channel = get_current_channel_name()
d.rotation = tonumber(mp.get_property("video-rotate"))
return d
end

Expand Down