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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-09 14:14:39 +02:00

16 Commits

Author SHA1 Message Date
James Almer
e33b162c7d avcodec/h2645_sei: use the RefStruct API for film_grain_characteristics
And ensure the buffer is synced between threads.
Based on a patch by Dale Curtis <dalecurtis@chromium.org>

Signed-off-by: James Almer <jamrial@gmail.com>
2024-11-11 16:10:15 -03:00
James Almer
91b6ba653e Revert "avcodec/h2645: allocate film grain metadata dynamically"
AVFilmGrainAFGS1Params, the offending struct, is using sizeof(AVFilmGrainParams)
when it should not. This change also forgot to make the necessary changes to the
frame threading sync code.
Both of these will be fixed by the following commit.

H274FilmGrainDatabase will be handled later.

This reverts commit 08b1bffa49715a9615acc025dfbea252d8409e1f.

Signed-off-by: James Almer <jamrial@gmail.com>
2024-11-11 15:26:21 -03:00
Dale Curtis
08b1bffa49 avcodec/h2645: allocate film grain metadata dynamically
Film grain support adds a huge amount of overhead to the H264Context
structure for a feature that is rarely used. On low end devices or
pages that have lots of media this bloats memory usage rapidly.

This changes the static film grain metadata allocations to be dynamic
which reduces the H264Context size from 851808 bytes to 53444 bytes.

Bug: https://crbug.com/359358875
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Niklas Haas <git@haasn.dev>
2024-10-25 01:02:35 +02:00
James Almer
9cea2410a1 avcodec/h2645_sei: export raw LCEVC metadata
Signed-off-by: James Almer <jamrial@gmail.com>
2024-09-19 10:01:00 -03:00
James Almer
6d0c89980c avcodec/hevcdec: export global side data in AVCodecContext
Signed-off-by: James Almer <jamrial@gmail.com>
2024-04-11 11:48:39 -03:00
Niklas Haas
2e24c12aa1 avcodec/h2645_sei: decode AFGS1 T.35 SEI
I restricted this SEI to HEVC for now, until I see a H.264 sample.
2024-03-23 18:55:21 +01:00
Jan Ekström
43e63ff20a avcodec: move content light level SEI handling to h2645_sei
This allows this common H.274 SEI to be parsed from both H.264
as well as HEVC, as well as probably from VVC in the future.

Generally attempts to keep the original code as similar as possible.

FATE test refererence changes only change the order of side data
export within a single frame. Nothing else seems to have changed.
2023-07-27 21:45:43 +03:00
Jan Ekström
33358b862c avcodec: move mastering display colour volume SEI handling to h2645_sei
This allows this common H.274 SEI to be parsed from both H.264
as well as HEVC, as well as probably from VVC in the future.

Generally attempts to keep the original code as similar as possible.

FATE test refererence changes only change the order of side data
export within a single frame. Nothing else seems to have changed.
2023-07-27 21:45:43 +03:00
Jan Ekström
5de565107a avcodec/h2645_sei: add support for Ambient Viewing Environment SEI
Defined by H.274, this SEI message is utilized by iPhones to save
the nominal ambient viewing environment for the display of recorded
HDR content. The contents of the message are exposed to API users
as AVFrame side data containing AVAmbientViewingEnvironment.

As the DV RPU test sample is from an iPhone and includes Ambient
Viewing Environment SEI messages, its test result gets updated.
2023-01-13 21:26:27 +02:00
Andreas Rheinhardt
7b450bafd7 avcodec/h2645_sei: Factor attaching film grain side-data to frame out
This unfortunately involved adding some parameters
to ff_h2645_sei_to_frame() that will be mostly unused.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:41 +01:00
Andreas Rheinhardt
a5bba606a0 avcodec/h2645_sei: Also support Active Format Descriptor for HEVC
It is valid for HEVC; in fact, the ATSC-HEVC spec [1] simply
refers to the relevant H.264 spec.

It is also trivial to implement now: Just move applying AFD
to ff_h2645_sei_to_frame() and stop ignoring AFD when parsing
a HEVC SEI containing it.

A FATE-test for this has been added.

[1]: https://www.atsc.org/atsc-documents/a3412017-video-hevc/

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:41 +01:00
Andreas Rheinhardt
38d0d12c46 avcodec/h264_sei, sei: Make H264_SEI_FpaType generic
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:41 +01:00
Andreas Rheinhardt
3bafc4ead4 avcodec/h2645_sei: Factor out applying SEIs to frames
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:41 +01:00
Andreas Rheinhardt
f89825e60a avcodec/h2645_sei: Factor out freeing common SEI parts
This commit only factors out freeing the common SEI parts,
not whether the fields indicating whether an SEI is present
shall be reset. H.264 and HEVC differ in this regard
(ff_h264_sei_uninit() really resets, whereas ff_hevc_reset_sei()
only uninits.) and neither actually honours the persistency
as prescribed by the relevant specs.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:40 +01:00
Andreas Rheinhardt
de5891d371 avcodec/h2645_sei: Factor updating H.2645 SEIs out
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:40 +01:00
Andreas Rheinhardt
33239ebd07 avcodec/h2645_sei: Factor parsing common SEI messages out
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-12-01 11:00:40 +01:00