v7 Update:
- Added new subtitle filter: split_cc
This new filter fills a number of current feature holes:
- The subcc hack is no longer required.
- It's not required anymore to use a movie input
container as input for getting caption data.
- It's possible to overlay ("burn-in") closed captions
onto a video in a single turn
- The processed video can be a live stream
(unlike the vf_subtitles filter, the new ones do
not need a separate and individual connection for
accessing the streams).
- Patches 01/12 to 11/12: Almost unchanged, no need to re-review,
only 12/12 is new.
v6 Update:
- Implements all given feedback from reviews (thanks!)
- Add AVSubtitle fields to AVFrame, keeping AVSubtitle unchanged
for compatibility and future deprecation
- Use subtitle frames internally and for filtering
- Retain compatibility with legacy subtitle implementation
through a number of compatibility conversion methods
- Reordered and reorganized commits, each one passing
FATE now
- Document new public API functions
- Many more detail changes
v5 Update:
- Merge AVSubtitle into AVFrame
- Move FATE test adjustments to corresponding commit
- Move documentation updates to corresponding filter commits
- Remove mediatype parameter from av_frame_get_buffer2
(still need some advice for splitting the commits in a way that
every single one will pass FATE)
v4 Update:
- Re-Sending due to Patchwork having failed to parse my patchset
There seems to be a bug in Patchwork when parallel processing is
enabled.
This time, I'll send the e-mails slowly, one after another.
v3 Update:
- Reworked, revised, rebased, reorganized, refactored
- No more prototype/test-style code
- Additional subtitle filters added
- Filter documentation added
- Adjusted FATE tests
This patchset is about introducing filtering support for subtitles.
The current sub2video "hack" implementation is slow, ineffective and
limited in capabilities.
=> This patchset introduces true subtitle filtering
These new filters are included:
- overlay_graphicsubs (VS -> V)
Overlay graphic subtitles onto a video stream
- graphicsub2video {S -> V)
Converts graphic subtitles to (transparent) video frames
- overlay_textsubs {VS -> V)
Overlay text subtitles onto a video stream.
- textsubs2video {S -> V)
Converts text subtitles to video frames
- textmod {S -> S)
Modify subtitle text in a number of ways
- stripstyles {S -> S)
Remove all inline styles from subtitle events
Regards,
softworkz
softworkz (11):
global: Prepare AVFrame for subtitle handling
fftools/play,probe: Adjust for subtitle changes
avfilter/subtitles: Add subtitles.c for subtitle frame allocation
avfilter/avfilter: Handle subtitle frames
avfilter/sbuffer: Add sbuffersrv and sbuffersink filters
avfilter/overlay_graphicsubs: Add overlay_graphicsubs and
graphicsub2video filters
fftools/ffmpeg: Replace sub2video with subtitle frame filtering
avfilter/overlay_textsubs: Add overlay_textsubs and textsubs2video
filters
avfilter/textmod: Add textmod filter
avcodec/ass_split: Extend ass dialog parsing
avfilter/stripstyles: Add stripstyles filter
softworkz (12):
global: Prepare AVFrame for subtitle handling
fftools/play,probe: Adjust for subtitle changes
avfilter/subtitles: Add subtitles.c for subtitle frame allocation
avfilter/avfilter: Handle subtitle frames
avfilter/sbuffer: Add sbuffersrv and sbuffersink filters
avfilter/overlay_graphicsubs: Add overlay_graphicsubs and
graphicsub2video filters
fftools/ffmpeg: Replace sub2video with subtitle frame filtering
avfilter/overlay_textsubs: Add overlay_textsubs and textsubs2video
filters
avfilter/textmod: Add textmod filter
avcodec/ass_split: Extend ass dialog parsing
avfilter/stripstyles: Add stripstyles filter
avfilter/split_cc: Add split_cc filter for closed caption handling
configure | 4 +-
doc/filters.texi | 285 +++++++++
fftools/ffmpeg.c | 460 ++++++--------
fftools/ffmpeg.h | 14 +-
fftools/ffmpeg_filter.c | 198 ++++--
fftools/ffmpeg_hw.c | 2 +-
fftools/ffmpeg_opt.c | 3 +-
fftools/ffplay.c | 50 +-
fftools/ffprobe.c | 49 +-
libavcodec/ass_split.c | 12 +-
libavcodec/ass_split.h | 2 +
libavcodec/avcodec.c | 19 -
libavcodec/avcodec.h | 105 ++--
libavcodec/decode.c | 24 +-
libavcodec/pgssubdec.c | 1 +
libavcodec/utils.c | 11 +
libavfilter/Makefile | 10 +
libavfilter/allfilters.c | 17 +-
libavfilter/avfilter.c | 30 +-
libavfilter/avfiltergraph.c | 5 +
libavfilter/buffersink.c | 63 ++
libavfilter/buffersink.h | 15 +
libavfilter/buffersrc.c | 72 +++
libavfilter/buffersrc.h | 1 +
libavfilter/formats.c | 14 +
libavfilter/formats.h | 3 +
libavfilter/internal.h | 1 +
libavfilter/sf_split_cc.c | 271 ++++++++
libavfilter/sf_stripstyles.c | 211 +++++++
libavfilter/sf_textmod.c | 374 +++++++++++
libavfilter/subtitles.c | 61 ++
libavfilter/subtitles.h | 44 ++
libavfilter/version.h | 2 +-
libavfilter/vf_overlay_graphicsubs.c | 727 ++++++++++++++++++++++
libavfilter/vf_overlay_textsubs.c | 615 ++++++++++++++++++
libavfilter/vf_subtitles.c | 28 +-
libavformat/utils.c | 1 +
libavutil/Makefile | 2 +
libavutil/frame.c | 185 +++++-
libavutil/frame.h | 93 ++-
libavutil/subfmt.c | 221 +++++++
libavutil/subfmt.h | 186 ++++++
libavutil/version.h | 2 +-
tests/ref/fate/filter-overlay-dvdsub-2397 | 181 +++---
tests/ref/fate/sub-dvb | 162 ++---
tests/ref/fate/sub2video | 44 --
tests/ref/fate/sub2video_basic | 93 ++-
tests/ref/fate/sub2video_time_limited | 4 +-
48 files changed, 4215 insertions(+), 762 deletions(-)
create mode 100644 libavfilter/sf_split_cc.c
create mode 100644 libavfilter/sf_stripstyles.c
create mode 100644 libavfilter/sf_textmod.c
create mode 100644 libavfilter/subtitles.c
create mode 100644 libavfilter/subtitles.h
create mode 100644 libavfilter/vf_overlay_graphicsubs.c
create mode 100644 libavfilter/vf_overlay_textsubs.c
create mode 100644 libavutil/subfmt.c
create mode 100644 libavutil/subfmt.h
--
2.30.2.windows.1
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