FFmpeg

Commit Graph

Author	SHA1	Message	Date
Oneric	b6f5a7ce0c	avcodec/ass: specify a permissive encoding The Encoding field (and the \fe tag) allows to limit font selection to only those fonts declaring support for the specified codepage in their OS/2's table "Code Page Character Range" field. Particularly, Encoding=0 means only font's declaring support for "ANSI", or rather "Latin (Western European)", are allowed to be selected. Specifying Encoding=1 allows all fonts to be considered. We do not want to limit font selection, so specify Encoding=1. NB: at the time of writing libass only partially supports this field, thus hiding the issue in any libass-based renderer. A VSFilter-based DirectShow filter or XySubFilter will reveal the issue when a font not declaring support for latin characters is specified in a style.	2 years ago
Oneric	95115fcc18	avcodec/ass: accurately preserve colours Colour values used in ASS files without a "YCbCr Matrix" header set to "None" are subject to colour mangling, due to how ASS was historically conceived. A more in-depth description can be found in the documetation inside libass' public ass_types.h header. The important part is, if this header is not set to "None", the final output colours can deviate from the literal value specified in the file. When converting from non-ASS formats we do not want any colour shift to happen, so let's set the appropiate header. NB: ffmpeg's subtitle filter, does not follow libass' documentation regarding colour mangling, thus hiding the bug. Anything based on VSFilter, XySubFilter or e.g. mpv do and might show the issue. (Of course native ASS subs, which _do_ rely on colour mangling won't work properly with the subtitle filter, but this can be fixed another time)	2 years ago
Oneric	e6dcb6a0db	avcodec/ass: explicitly set ScaledBorderAndShadow Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	5 years ago
John Stebbins	91447ae3ba	lavc/movtextdec: add alpha default to ass header colors Signed-off-by: Philip Langdale <philipl@overt.org>	5 years ago
Niklesh	1bf8f54274	movtextdec: Use default style information from movtext header As suggested, posting the combined patch with the fate changes. The patch sets the default style in ASS from the default style information present in the movtext header. Signed-off-by: Niklesh <niklesh.lalwani@iitb.ac.in>	9 years ago
Clément Bœsch	52b0a0ecaa	avcodec/ass: add FFmpeg signature	10 years ago
Clément Bœsch	40b9f28641	avcodec/ass: output missing fields in AVSubtitles and output files Fixes Ticket #3207	10 years ago
Clément Bœsch	8022bb1d92	fate: make subtitles tests output to stdout instead of md5 This makes tracking subtitles changes simpler.	10 years ago
Clément Bœsch	88514378ba	avcodec/ass: move playres parameters below scripttype Suggested-by: wm4	11 years ago
Clément Bœsch	5039aadf68	avcodec/ass: explicit PlayRes[XY] This avoids the following libass warning when using the subtitles filter: "Neither PlayResX nor PlayResY defined. Assuming 384x288" Subtitles tests change because the output is ASS and the PlayRes[XY] ends up in the output.	11 years ago
Philip Langdale	2c501ae82b	movtextdec: 3GPP TS 26.245 Timed Text Decoder. This change introduces a basic decoder for 3GPP Timed Text subtitles, also known as TX3G, Quicktime subtitles, or "movtext" in the existing code. This initial change doesn't attempt to parse styling information, and just reads the plain text of the subtitles. I intend to add support for styles eventually, but it's challenging due to a lack of existing players that support them. Signed-off-by: Philip Langdale <philipl@overt.org>	13 years ago

11 Commits (e2e34c7731372b65b41ddb11334ccaeba4a76f13)