> On Feb 20, 2025, at 01:40, Krzysztof Pyrkosz via ffmpeg-devel
> wrote:
>
> ---
>
> This patch replaces integer widening with halving addition, and
> multi-step "emulated" rounding shift with a single asm instruction doing
> exactly that. This pattern repeats in other functions in this file
Please put alpha.mp4 under hevc directory. md5sum alpha.mp4
738f66421c736aedda547529156cbe35 alpha.mp4
https://drive.google.com/file/d/17PcD8Re_JNTKDkOhChnV9l65T9k1j1WL/view?usp=drive_link
> On Feb 20, 2025, at 12:35, Zhao Zhili wrote:
>
> From: Zhao Zhili
>
> ---
> tests/fate/hevc.mak
From: Zhao Zhili
---
tests/fate/hevc.mak | 3 +++
tests/ref/fate/hevc-alpha | 55 +++
2 files changed, 58 insertions(+)
create mode 100644 tests/ref/fate/hevc-alpha
diff --git a/tests/fate/hevc.mak b/tests/fate/hevc.mak
index c74bc06085..e432345ef7 10
From: Niklas Haas
---
libavfilter/vf_alphamerge.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavfilter/vf_alphamerge.c b/libavfilter/vf_alphamerge.c
index f5779484a9..98c61e282d 100644
--- a/libavfilter/vf_alphamerge.c
+++ b/libavfilter/vf_alphamerge.c
@@ -85,6 +85,8 @@ static int d
From: Niklas Haas
Following in the footsteps of the previous commit, this commit adds the
new fields to AVCodecContext so we can start properly setting it on codecs,
as well as limiting the list of supported options to detect a format mismatch
during encode.
This commit also sets up the necessar
From: Niklas Haas
Error out if trying to encode frames with an incompatible alpha mode.
---
libavcodec/encode.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/libavcodec/encode.c b/libavcodec/encode.c
index cd10dcf3cd..4e05932e9f 100644
--- a/libavcodec/encode.c
Hi devs, I'm been following the discussion but not taking part on it.
I've just created a WIP PR on the forgejo instance which I'd like to get
review, in case the instance is ready for the experiment.
Please let me know if you prefer that I send the changes via the mailing list
instead, in case
From: Niklas Haas
---
fftools/ffmpeg_enc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c
index a46af4dce1..18a0733773 100644
--- a/fftools/ffmpeg_enc.c
+++ b/fftools/ffmpeg_enc.c
@@ -271,6 +271,7 @@ int enc_open(void *opaque, const AVFrame *frame
From: Niklas Haas
---
libavfilter/vf_premultiply.c | 8
1 file changed, 8 insertions(+)
diff --git a/libavfilter/vf_premultiply.c b/libavfilter/vf_premultiply.c
index 322fc39094..1c08cf524a 100644
--- a/libavfilter/vf_premultiply.c
+++ b/libavfilter/vf_premultiply.c
@@ -512,6 +512,7 @@
On Wed, 19 Feb 2025 18:04:18 -0300 James Almer wrote:
> On 2/19/2025 5:45 PM, Niklas Haas wrote:
> > From: Niklas Haas
> >
> > Following in the footsteps of the previous commit, this commit adds the
> > new fields to AVCodecContext so we can start properly setting it on codecs,
> > as well as lim
On 2/19/2025 5:45 PM, Niklas Haas wrote:
From: Niklas Haas
Following in the footsteps of the previous commit, this commit adds the
new fields to AVCodecContext so we can start properly setting it on codecs,
as well as limiting the list of supported options to detect a format mismatch
during enc
From: Niklas Haas
PNG always uses straight alpha.
---
libavcodec/pngdec.c | 5 +
libavcodec/pngenc.c | 6 ++
2 files changed, 11 insertions(+)
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index b9c997ab0e..d2a61d3bce 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@
From: Niklas Haas
---
doc/filters.texi | 13 +
libavfilter/vf_setparams.c | 10 ++
2 files changed, 23 insertions(+)
diff --git a/doc/filters.texi b/doc/filters.texi
index fa23c10b2d..6e8272fd81 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -22231,6 +2223
From: Niklas Haas
---
libavfilter/vf_showinfo.c | 8
1 file changed, 8 insertions(+)
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index 8109ca7fce..c658cdcc3e 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -875,6 +875,14 @@ static int fi
From: Niklas Haas
Chooses the desired output alpha mode. Note that this depends on
an upstream version of libplacebo new enough to respect the corresponding
AVFrame field in pl_map_avframe_ex.
---
doc/filters.texi| 4
libavfilter/vf_libplacebo.c | 13 +
2 files chan
From: Niklas Haas
---
doc/filters.texi | 3 +-
libavfilter/vf_overlay.c | 199 --
libavfilter/vf_overlay.h | 4 +-
libavfilter/x86/vf_overlay_init.c | 8 +-
4 files changed, 116 insertions(+), 98 deletions(-)
diff --git a/doc/
From: Niklas Haas
FFmpeg currently handles alpha in a quasi-arbitrary way. Some filters/codecs
assume alpha is premultiplied, others assume it is independent. If there is
to be any hope for order in this chaos, we need to start by defining an enum
for the possible range of values.
---
doc/APIcha
Ping
On 02/02/2025 12:10, Frank Plowman wrote:
> The clamping of idxYInv from H.266(V3) section 8.8.2.3 was missing.
> This could lead to OOB reads from lmcs->pivot or input_pivot.
>
> I also changed the derivation of the forward LMCS idx to use a shift
> rather than a division for speed and as t
In the case pps_subpic_less_than_one_tile_slice is called, the
subpicture is smaller than the tile and so there are multiple
subpictures in the tile. Of course, then, not all the
subpictures can start in the top-left corner as the code before the
patch does. Patch fixes this, so each subpicture s
This is essentially a re-implementation of
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20241005223955.54158-1-p...@frankplowman.com/
That patch was not applied last time. Instead we opted to identify
issues which could be caused by invalid subpicture layouts and remedy
those issues where th
Hi,
Thanks for your review.
On 16/02/2025 15:19, Nuo Mi wrote:
> Hi Frank,
> Thank you for the patch.
>
> On Sun, Feb 9, 2025 at 11:45 PM Frank Plowman wrote:
>
>> This is essentially a re-implementation of
>>
>> https://patchwork.ffmpeg.org/project/ffmpeg/patch/20241005223955.54158-1-p...@fra
From: softworkz
Signed-off-by: softworkz
---
doc/ffprobe.texi | 16
1 file changed, 16 insertions(+)
diff --git a/doc/ffprobe.texi b/doc/ffprobe.texi
index ceedc8793b..106d865e18 100644
--- a/doc/ffprobe.texi
+++ b/doc/ffprobe.texi
@@ -626,6 +626,22 @@ This option automaticall
From: softworkz
Signed-off-by: softworkz
---
fftools/ffprobe.c | 147 +-
1 file changed, 146 insertions(+), 1 deletion(-)
diff --git a/fftools/ffprobe.c b/fftools/ffprobe.c
index 0270878ead..843c8df7f3 100644
--- a/fftools/ffprobe.c
+++ b/fftools/ffp
fftools/ffprobe: Add YAML output writer
Motivation
While YAML might not be the greatest format as such, its strengths are in
human readability, probably better than any other format we have currently,
which makes it worthwhile to add afaic.
softworkz (2):
fftools/ffprobe: Add YAML output write
---
Before and after on A78
dmvr_8_12x20_neon: 86.2 ( 6.90x)
dmvr_8_20x12_neon: 94.8 ( 5.93x)
dmvr_8_20x20_neon: 141.5 ( 6.50x)
dmvr_12_12x20_neon:158.
Le mer. 19 févr. 2025 à 12:17, Lynne a écrit :
>
> On 19/02/2025 06:24, Romain Beauxis wrote:
> > This is a series of patches to allow proper decoding of ogg metadata in
> > chained
> > `ogg/vorbis, `ogg/flac` and `ogg/opus` streams.
> >
> > ## Changes since last version:
> > * Metadata update is
From: Niklas Haas
Signed-off-by: Niklas Haas
---
libavfilter/vf_libplacebo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index 5592460c16..0b7c0d2bfd 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_l
From: Niklas Haas
These were removed upstream and no longer have had any effect for
a while now.
Signed-off-by: Niklas Haas
---
doc/filters.texi| 13 -
libavfilter/vf_libplacebo.c | 9 -
2 files changed, 22 deletions(-)
diff --git a/doc/filters.texi b/doc/filt
On 19/02/2025 06:24, Romain Beauxis wrote:
This is a series of patches to allow proper decoding of ogg metadata in chained
`ogg/vorbis, `ogg/flac` and `ogg/opus` streams.
## Changes since last version:
* Metadata update is now using a factored out function from the vorbis
decoder which includ
Le mar. 18 févr. 2025 à 23:25, Romain Beauxis
a écrit :
>
> Samples available at:
> https://www.dropbox.com/scl/fo/xrtrna2rxr1j354hrtymq/AGwemlxHYecBLNmQ8Fsy--4?rlkey=lzilr4m9w4gfdqygoe172vvy8&dl=0
>
> Before the changes:
> Stream ID: 0, codec name: vorbis, metadata: encoder=Lavc61.19.100
> libv
---
This patch replaces integer widening with halving addition, and
multi-step "emulated" rounding shift with a single asm instruction doing
exactly that. This pattern repeats in other functions in this file, I
fixed some in the succeeding patch. There's a lot of performance to be
gained there.
I
From: Niklas Haas
---
libavfilter/vf_libplacebo.c | 15 ++-
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index cc07ccd8be..08041f6894 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_libplacebo.c
On Tue, 18 Feb 2025 17:43:35 +0100 epira...@gmail.com wrote:
>
>
> On 18 Feb 2025, at 13:46, Niklas Haas wrote:
>
> > From: Niklas Haas
> >
> > Debugging option to dump the filter graph after insertion of auto-filters.
> > Named such to avoid clashing with the existing -dumpgraph option on lavfi
>
From: Niklas Haas
Fixes a deprecation warning, and also fixes a bug where the depredated
skip_target_clearing option was not correctly mapped to the new API inside
libplacebo upstream.
Signed-off-by: Niklas Haas
Sponsored-by: nxtedition
---
libavfilter/vf_libplacebo.c | 12 ++--
1 file
From: Niklas Haas
There is no reason to only do this on the first input. It doesn't actually
matter for now given that we don't constrain the color space list, but it
may matter when that changes.
Signed-off-by: Niklas Haas
---
libavfilter/vf_libplacebo.c | 6 ++
1 file changed, 2 insertio
From: Niklas Haas
Each input is entirely independent and can have varying pixel formats,
color spaces, etc. To accomplish this, we need to make a full copy of the
format list for each subsequent input, rather than sharing the same ref.
Signed-off-by: Niklas Haas
Sponsored-by: nxtedition
---
li
From: Zhao Zhili
clang does better than the assembly code before the patch, especially
for small size:
hevc_idct_4x4_dc_8_c: 11.2 ( 1.00x)
hevc_idct_4x4_dc_8_neon:15.5 ( 0.73x)
hevc_idct_4x4_dc_10_c:
From: Zhao Zhili
Reduce binary size at the same time. The performance compared to clang -O3
is the same.
---
libavcodec/aarch64/hevcdsp_idct_neon.S| 43 ++-
libavcodec/aarch64/hevcdsp_init_aarch64.c | 8 +
2 files changed, 35 insertions(+), 16 deletions(-)
diff --gi
Hi
Rather than continue the RFC thread for this, I decided to submit a
patch that begins the process of documenting metadata keys.
There's quite a lot of keys used in the codebase, and this patch does
not cover all of them. But it should give the general idea. I follow a
similar approach to that
From: softworkz
This add support for WebVTT subtitles in HLS streams.
Just like for separate audio streams, it supports all available
WebVTT streams in all renditions.
No new options are added, it just works and provides subtitles streams
like any other demuxer.
The code prevents downloading subt
From: softworkz
The webvtt extension is sometimes used in HLS playlists.
Signed-off-by: softworkz
---
libavformat/webvttdec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/webvttdec.c b/libavformat/webvttdec.c
index 6e60348764..6feda1585e 100644
--- a/libavf
This add support for WebVTT subtitles in HLS streams. similar like for
separate audio streams, it supports all available WebVTT streams in all
renditions. No new options are added, it just works and provides subtitles
streams like other demuxers.
The code prevents downloading subtitle segments whi
tis 2025-02-18 klockan 18:35 +0100 skrev Marvin S.:
>
>
> On 18 Feb 2025, at 17:56, Tomas Härdin wrote:
>
> > tor 2025-02-13 klockan 12:54 +0100 skrev Tomas Härdin:
> > > Hi
> > >
> > > In the samples_md5 patch discussion Michael wanted the proposed
> > > key
> > > to
> > > be documented. But i
From: Zhao Zhili
This fixed wasm checkasm failure
$ wasm-tools validate tests/checkasm/checkasm
error:
wasisdk://v25.0/build/sysroot/wasi-libc-wasm32-wasip1-threads/libc-top-half/musl/src/stdio/__stdio_close.c:24:9
function `__stdio_close` failed to validate
Caused by:
0: func 4581 failed
From: softworkz
Enables filtergraph printing and adds the options to the docs
Signed-off-by: softworkz
---
doc/ffmpeg.texi | 10 ++
fftools/ffmpeg.c| 4
fftools/ffmpeg_filter.c | 5 +
3 files changed, 19 insertions(+)
diff --git a/doc/ffmpeg.texi b/doc/ffmpe
From: softworkz
The key benefits are:
- Different to other graph printing methods, this is outputting:
- all graphs with runtime state
(including auto-inserted filters)
- each graph with its inputs and outputs
- all filters with their in- and output pads
- all connections between all
From: softworkz
to allow print_graph to access the information.
Signed-off-by: softworkz
---
fftools/ffmpeg_filter.c | 188 +---
fftools/ffmpeg_filter.h | 232
2 files changed, 233 insertions(+), 187 deletions(-)
create mode
The key benefits are:
* Different to other graph printing methods, this is outputting:
* all graphs with runtime state
(including auto-inserted filters)
* each graph with its inputs and outputs
* all filters with their in- and output pads
* all connections between all input- and
---
This fixes the av_freep call from the previous patch.
libavformat/rtsp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index 0c65f8d1a4..ac17717195 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -478,6 +478,7 @@ static void sdp_pars
by first changing the RTSPSource to track the destination address
obtained from the source filter. For each RTSPStream, only add the source
filter from the sdp if sdp_ip string matches source-filter's destination
address.
Before issuing the setup request, change the lower_transport to
multicast if
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