Title Frame can be generated much more efficiently

[kalegood]

Multiple frames are currently generated for title screen; only 1 is needed.

The following website seems to suggest that -r 1/(number of seconds) would do the trick:

http://ffmpeg.org/trac/ffmpeg/wiki/Create%20a%20video%20slideshow%20from%20images

I don't know python, but I think on ffmpeg side, replace

# generate silent title video
        silentAudio    = generateSilence(options.titleDuration)
        titleFramePath = tmpPath('title', 'frame%d.png')
        titlePath      = tmpPath('title.mpg')
        cmd = [
            ffmpeg,
            "-f", "image2",
            "-r", fps,
            "-i", titleFramePath,
            "-i", silentAudio,
            "-q:v", str(options.quality),
            titlePath
        ]
        safeRun(cmd, exitcode=14)

with

# generate silent title video
        silentAudio    = generateSilence(options.titleDuration)
        titleFramePath = tmpPath('title', 'title.png')
        titlePath      = tmpPath('title.mpg')
        cmd = [
            ffmpeg,
            "-f", "title",
            "-r", 1/(variable from --title-duration),
            "-i", titleFramePath,
            "-i", silentAudio,
            "-q:v", str(options.quality),
            titlePath
        ]
        safeRun(cmd, exitcode=14)

[kalegood]

Changing line 373 to

TotalFrames = 1

works but I don't know why. I'm assuming that the 1 frame covers all 3 seconds of generated silence. Sloppy, but it works.