On Sun, Jul 4, 2021 at 10:50 PM Linjie Fu wrote:
>
> From: Linjie Fu
>
> Skip the logic of frame rate emulation until the input reaches the
> specified start time.
>
> Test CMD:
>$ffmpeg -re -ss 30 -i input.mp4 -pix_fmt yuv420p -f sdl2 -
>
> Before the patch:
> first time to got frame, it tak
6 Jul 2021, 21:57 by c...@passwd.hu:
>
>
> On Tue, 6 Jul 2021, Lynne wrote:
>
>> 3 Jun 2021, 06:58 by d...@lynne.ee:
>>
>>> Apr 26, 2021, 03:27 by andreas.rheinha...@outlook.com:
>>>
Lynne:
> From 097aed2ac33dda0bb2052d8b0402711ce95079ba Mon Sep 17 00:00:00 2001
> From: Lynne
>>
On Tue, 6 Jul 2021, Lynne wrote:
3 Jun 2021, 06:58 by d...@lynne.ee:
Apr 26, 2021, 03:27 by andreas.rheinha...@outlook.com:
Lynne:
From 097aed2ac33dda0bb2052d8b0402711ce95079ba Mon Sep 17 00:00:00 2001
From: Lynne
Date: Sat, 23 Jan 2021 19:56:18 +0100
Subject: [PATCH] avpacket: ABI bum
On Mon, Jul 05, 2021 at 08:32:30PM +0200, Michael Niedermayer wrote:
> Fixes: negation of -9223372036854775808 cannot be represented in type
> 'int64_t' (aka 'long'); cast to an unsigned type to negate this value to
> itself
> Fixes:
> 33997/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MA
On Mon, Jul 5, 2021 at 4:32 AM Fei Wang wrote:
> +int64_t v, w;
> +int32_t *param = &s->cur_frame.gm_params[idx][0];
...
> +v = param[4] * (1 << AV1_WARPEDMODEL_PREC_BITS);
> +w = param[3] * param[4];
Possible integer overflow? Might need some int64_t casting before the
mu
On Tue, Jul 6, 2021 at 1:15 AM Lynne wrote:
>
> 6 Jul 2021, 08:02 by sunguangy...@gmail.com:
>
> > On Mon, Jun 21, 2021 at 9:06 AM Guangyu Sun wrote:
> >
> >>
> >> From: Guangyu Sun
> >>
> >> Without end_trimming, the last packet will contain unexpected samples used
> >> for padding.
> >>
> >> T
On Tue, Jul 06, 2021 at 06:08:01PM +0200, Michael Niedermayer wrote:
> This fixes an issue when multiple cases are fuzzed in a single run and
> the limits are adjusted by more than the iteration limit. In that case
> the adjusted limit leaked back into the global limit causing the
> fuzzer to becom
This fixes an issue when multiple cases are fuzzed in a single run and
the limits are adjusted by more than the iteration limit. In that case
the adjusted limit leaked back into the global limit causing the
fuzzer to become ineffective after several iterations, MSS2 was
affected by this for example
Hello
I am emailing this mailing as per the instructions on
https://ffmpeg.org/consulting.html.
I am looking for a rough quote to provide the following functionality and
advice in the context of short (10-120 second) videos.
1. The ability to overlay audio waveforms at a given position with b
This patch series implements a series of features, mostly enhancing the
dshow avdevice, but also adding new functionality to avformat.
This whole patchset enabled users of the FFmpeg API to fully
query and control a dshow device, making FFmpeg a nice backend for any
program that needs access to, e.
While the capabilities API is in principle meant to be used with an
allocated format context belonging to an unopened device, small changes
make it work for an opened dshow device as well. So hereby done.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 110 +
list_options true would crash when both a video and an audio device were
specified as input. Crash would occur on line 1588 (in this new rev)
because ctx->device_unique_name[otherDevType] would be NULL
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 3 ++-
1 file changed, 2 inserti
Signed-off-by: Diederick Niehorster
---
doc/examples/Makefile | 48 +--
1 file changed, 24 insertions(+), 24 deletions(-)
diff --git a/doc/examples/Makefile b/doc/examples/Makefile
index de707bb3ca..7988ed4226 100644
--- a/doc/examples/Makefile
+++ b/doc/e
This example also shows use of get_device_list API.
Also improve capability API doc in avdevice.h: now point to this example
instead of rough example code given in the header.
Signed-off-by: Diederick Niehorster
---
configure | 2 +
doc/examples/.gitignore
avformat_alloc_input_context function analogous to
avformat_alloc_output_context2, except that it does not take a filename
argument as guessing the format by just the filename does not make sense.
avformat_alloc_input_context can be used e.g. with the avdevice
capabilities API, which needs an alloc
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 26 ++
1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index 590a007073..f900e89988 100644
--- a/libavdevice/dshow.c
+++ b/libavdevice/dshow.c
@@ -963,6
This implements avdevice_capabilities_create and
avdevice_capabilities_free for the dshow device.
This enables configuration discovery of DirectShow devices through the
API, which is important for my use case. It enables making proper GUIs
presenting users with options, instead of asking them to d
The dshow avdevice ignores timestamps for video frames provided by the
DirectShow device, instead using wallclock time, apparently because the
implementer of this code had a device that provided unreliable
timestamps. Me (and others) would like to use the device's timestamps.
The new use_video_devi
After the avdevice capabilities API is implemented, the format context
may be reused after querying device capabilities in a later
avformat_open_input call. To enable this reuse, after releasing
resources, make sure to also set the corresponding pointers back to
NULL. This correctly indicates their
Needs to be moved up in file for upcoming implementation of
avdevice_capabilities_create.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 40
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/libavdevice/dshow.c b/libavdevice/d
This adds avdevice_capabilities_get_class() to allow examining the
capabilities that can be queried/set through the capabilities API, and
avdevice_capabilities_bprint_num() which allows printing the value
returned when querying a capability. These values (min_value and
max_value of an AVOptionRange
Changes fps option from AVRational to double. This since any device
capability query results are returned in AVOptionRanges, which hold the
value as doubles, which can't contain AVRationals.
Also updated documentation of other capabilities, some had the wrong
option type listed.
micro version bum
Signed-off-by: Diederick Niehorster
---
libavdevice/internal.h | 31 +++
libavdevice/utils.c| 48 ++
libavdevice/version.h | 2 +-
3 files changed, 80 insertions(+), 1 deletion(-)
diff --git a/libavdevice/internal.h b/libavdev
AVOptionRange needs a way to encode that an option is not set. Here i
provide a documentation solution. When a range is invalid (value_min >
value_max), it should be considered unset/value not available.
When querying a range of formats of an avdevice, sometimes for a given
format the queried opti
Signed-off-by: Diederick Niehorster
---
libavdevice/avdevice.c | 2 +-
libavdevice/avdevice.h | 28 +---
libavdevice/internal.h | 33 +
libavdevice/version.h | 2 +-
4 files changed, 36 insertions(+), 29 deletions(-)
diff --git a/libavde
Draw implementation in line with that of avdevice_list_devices
Signed-off-by: Diederick Niehorster
---
libavdevice/avdevice.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/libavdevice/avdevice.c b/libavdevice/avdevice.c
index 695b9143af..e66906e91b 100644
--- a/libav
This reverts commit 4f49ca7bbc75a9db4cdf93f27f95a668c751f160. The next
few patches clean up the API and implement this capability for
avdevice/dshow.
Signed-off-by: Diederick Niehorster
---
libavdevice/avdevice.c | 71 ++
libavdevice/avdevice.h | 5 ---
l
Some DirectShow devices (Logitech C920 webcam) expose each DirectShow
format they support twice, once without and once with extended color
information. During format selection, both match, this patch ensures
that the format with extended color information is selected if it is
available, else it fal
Enabled discovering a DirectShow device's color range, space, primaries,
transfer characteristics and chroma location, if the device exposes that
information. Sets them in the stream's codecpars.
Co-authored-by: Valerii Zapodovnikov
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c |
The "show config dialog" command message can now also trigger dialog
boxes for the crossbar connecting pins filter the analog tuner
audio / analog tuner filters.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 51 ++--
libavdevice/dshow_capture.h | 10
Cleanup was missing for when the show_analog_tv_tuner_audio_dialog is
true.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow_crossbar.c | 4
1 file changed, 4 insertions(+)
diff --git a/libavdevice/dshow_crossbar.c b/libavdevice/dshow_crossbar.c
index 2438683cde..961defe690 100644
DirectShow source will pop up its configuration dialog when
AV_APP_TO_DEV_CONFIG is received. Implementation for several other
possible configuration dialogs is more involved and will be provided in
the next commit.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 29 +++
This control message can be used to programmatically ask a device to
show one of its configuration dialogs.
Adding documentation of this message's int argument.
Bumping avdevice version.
Signed-off-by: Diederick Niehorster
---
doc/indevs.texi| 34 ++
lib
This allows programmatic users of avdevice to start and stop the
DirectShow Capture graph (i.e. receive frames or not). This is important
because now the buffer fills up and starts dropping samples when
enqueued packets are not read out immediately after the demuxer is
opened.
Signed-off-by: Diede
Control messages are useful for programmatic control of not only outdevs
but also indevs.
Bumping avformat version.
Signed-off-by: Diederick Niehorster
---
libavdevice/avdevice.c | 8 +---
libavformat/avformat.h | 6 ++
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/lib
fftools now print info about what media type(s), if any, are provided by
sink and source avdevices.
Signed-off-by: Diederick Niehorster
---
fftools/cmdutils.c | 34 --
1 file changed, 24 insertions(+), 10 deletions(-)
diff --git a/fftools/cmdutils.c b/fftools/cmd
The list returned by get_device_list now contains info about what media
type(s), if any, can be provided by each device.
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index 8e693875
An avdevice, regardless of whether its category says its an audio or
video device, may provide access to devices providing different media
types, or even single devices providing multiple media types. Also, some
devices may provide no media types. dshow is an example encompassing all
of these cases
the list_devices option of dshow didn't indicate whether a specific
device provides audio or video output. This patch iterates through all
media formats of all pins exposed by the device to see what types it
provides for capture, and prints this to the console for each device.
Importantly, this now
Needed to enable programmatic discovery of DirectShow devices
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow.c | 80 +
1 file changed, 73 insertions(+), 7 deletions(-)
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index 389daa6380.
avdevice/dshow is a realtime device and as such does not support
seeking. Therefore, its demuxer format should define the
AVFMT_NOBINSEARCH, AVFMT_NOGENSEARCH and AVFMT_NO_BYTE_SEEK flags.
With these flags set, attempting to seek (with, e.g.,
avformat_seek_file()) correctly yields -1 (operation not
GetTime may return an error indication that the sample has not
timestamps, or may return a NULL start time. In those cases, fall back
to graph time.
Better debug message in case sample dropped: could now be audio or
video frame
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow_pin.c | 19
No need to query twice, use value we've already unconditionally got.
Improve variable names
Signed-off-by: Diederick Niehorster
---
libavdevice/dshow_pin.c | 28
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/libavdevice/dshow_pin.c b/libavdevice/dsh
Signed-off-by: Diederick Niehorster
---
doc/indevs.texi | 6 ++
1 file changed, 6 insertions(+)
diff --git a/doc/indevs.texi b/doc/indevs.texi
index b377924c2f..685b1357a6 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -611,6 +611,12 @@ Save the currently used video capture filter dev
6 Jul 2021, 08:02 by sunguangy...@gmail.com:
> On Mon, Jun 21, 2021 at 9:06 AM Guangyu Sun wrote:
>
>>
>> From: Guangyu Sun
>>
>> Without end_trimming, the last packet will contain unexpected samples used
>> for padding.
>>
>> This commit partially fixes #6367 when the audio length is long enoug
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