[FFmpeg-devel] [PATCH 2/2] avcodec/srtdec: attempt to correct SubRip positioning
u at pkh.me
Sun Feb 8 12:42:11 CET 2015
On Sun, Feb 08, 2015 at 12:40:19PM +0100, Clément Bœsch wrote:
> The positioning was completely wrong. First, the coordinates are
> expressed in ASS playback resolution (which is by default 384x288).
> Secondly, the coordinates define a drawing rectangle, not a moving area.
> The previous code was making subtitles move from a random position to
> another random position.
> Here we rescale assuming the video resolution is a DVD one (720x480). We
> can't really do anything better so far, but since these positioning are
> often from a DVD rip we can't consider them relatively safe.
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