ping again!
Are there any objections to this patch set?
If not, would someone push it to the repository?
On 2022/06/08 18:48, TADANO Tokumei wrote:
ping
The patch set has been well tested by Japanese ISDB-related developers and
works fine.
I think it already has good quality to merge.
It requires external library like libaribb24, but the feature is disabled by
default.
There is no impact to current code without `--enable-libaribcaption` option is
specified at configuration. The patch set provide better subtitle feature
for ISDB users than libaribb24 if enabled.
On 2022/05/30 23:55, TADANO Tokumei wrote:
This patch set add another ARIB caption decoder using libaribcaption
external library: https://github.com/xqq/libaribcaption
The library decodes subtitles of ISDB-based TV broadcasting.
It is not only for Japanese ARIB STD-B24 caption, but also for
Brazilian ABNT NBR 15606-1 and Philippines version of ISDB-T.
Unlike libaribb24, it supports 3 types of subtitle outputs:
* text: plain text
* ass: ASS formatted text
* bitmap: bitmap image
Default subtitle type is ASS as same as libaribb24, but it can
be changed by `-sub_type` option.
You can see ARIB caption with ffplay tool:
ffplay -sub_type bitmap MPEG.TS
Sample files exist under:
https://streams.videolan.org/streams/ts/ARIB/
Some of them are encrypted and some don't contain ARIB caption data.
Good samples for ARIB caption are:
brazil/07-25_20-33-35_UCV - HD_.ts
japan/channel2[137]_clear.ts
---
v4: reflect review results from outside of this ML.
- resize bitmap subtitle image to display fonts with correct aspect ratio
- multiple font families can be specified by '-font' option
- remove 'rendering_backend' option
- add document
- minor bug fixes
v3: combine former 1/4 and 2/4 due to the patchwork shows build error.
v2: combine former 1/5 and 2/5 due to the patchwork shows build error.
- fix help option content which incorrectly separated to 2 lines in 2/4.
- amend commit message of 4/4.
TADANO Tokumei (4):
lavc/libaribcaption.c: add ARIB caption decoder using libaribcaption
lavc/codec_desc.c: remove AV_CODEC_PROP_TEXT_SUB property
lavf/mpegts.c: set some properties for ARIB caption
doc/decoders.texi: add document of aribcaption decoder
configure | 4 +
doc/decoders.texi | 99 +++
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 1 +
libavcodec/codec_desc.c | 1 -
libavcodec/libaribb24.c | 1 +
libavcodec/libaribcaption.c | 1137 +++++++++++++++++++++++++++++++++++
libavformat/mpegts.c | 19 +-
8 files changed, 1261 insertions(+), 2 deletions(-)
create mode 100644 libavcodec/libaribcaption.c
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