From: Niklesh niklesh.lalw...@iitb.ac.in
Generate the default style for movtext from the ASS style. Earlier, we used a
fixed default style.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextenc.c | 110
1 file changed, 82
From: Niklesh niklesh.lalw...@iitb.ac.in
The value of wrap_flag in the Text Wrap Box specifies if the text is to be
wrapped or not.
Uses 'end of line wrap' amongst the wrap styles supported by ASS if the text is
to be wrapped, i.e; fill as much text in a line as possible, then break to next
From: Niklesh niklesh.lalw...@iitb.ac.in
This is the updated patch to set the default style in ASS from the default
style information present in the movtext header.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 82
From: Niklesh niklesh.lalw...@iitb.ac.in
The default style is set in the previous patch from the information present in
movtext header. This changes the results of some fate tests.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
tests/ref/fate/sub-movtext | 2 +-
On Wed, Aug 12, 2015 at 3:24 PM, Carl Eugen Hoyos ceho...@ag.or.at wrote:
Niklesh Lalwani niklesh.lalwani at iitb.ac.in writes:
The default style is set in the previous patch from
the information present in movtext header. This
changes the results of some fate tests.
The fate changes
From: Niklesh niklesh.lalw...@iitb.ac.in
As suggested, posting the combined patch with the fate changes.
The patch sets the default style in ASS from the default style information
present in the movtext header.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c
From: Niklesh niklesh.lalw...@iitb.ac.in
Sets the default style in ASS from the default style information present in
movtext header
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 82 ++---
1 file changed, 78
+
+typedef struct {
+char *font;
+int fontsize;
+int color;
+int back_color;
+int bold;
+int italic;
+int underline;
+int alignment;
+} Movtext_default;
+
This name is inconsistent. Use MovTextDefault.
Yes, makes sense. Updated patch
From: Niklesh niklesh.lalw...@iitb.ac.in
Initialize m-count_f to 0 at the correct place to free memory allocs properly.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/movtextdec.c
I didn't mean this - it's ok for the value to be 0, but it's
not ok for it to be some huge number that will cause you to
read beyond the end of the buffer. So like you did for the other
variable length fields, you need to sanity check this against the total
packet size.
+t3xg_ptr += 2;
On Thu, Aug 6, 2015 at 2:02 AM, Philip Langdale phil...@overt.org wrote:
On Thu, 6 Aug 2015 00:12:07 +0530
Niklesh Lalwani lalwani1...@gmail.com wrote:
From 90f466bb6a5d3cd24d7ea4d9fd8a2915cc68cdb2 Mon Sep 17 00:00:00 2001
From: Niklesh niklesh.lalw...@iitb.ac.in
Date: Thu, 6 Aug 2015 00
Changes incorporated.
Updated patch attached.
Thanks,
Niklesh
On Thu, Aug 6, 2015 at 7:51 AM, Philip Langdale phil...@overt.org wrote:
On Thu, 6 Aug 2015 07:13:07 +0530
Niklesh Lalwani lalwani1...@gmail.com wrote:
On Thu, Aug 6, 2015 at 2:02 AM, Philip Langdale phil...@overt.org
wrote
Updated patch.
Thanks,
Niklesh
On Tue, Aug 4, 2015 at 8:58 AM, Philip Langdale phil...@overt.org wrote:
On Fri, 31 Jul 2015 19:25:58 +0530
Niklesh Lalwani niklesh.lalw...@iitb.ac.in wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
The font names are extracted from the font table
From: Niklesh niklesh.lalw...@iitb.ac.in
The font names are extracted from the font table, present in text sample entry.
More than one fonts can be present, which is taken care of in the patch.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 86
From: Niklesh niklesh.lalw...@iitb.ac.in
Add support for fontsize in style records. The patch uses reset to directly
change back to default style instead of using closing tags, since we are not
handling the default styles right now.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch adds support for secondary color changes through highlight and
hilightcolor box.
The code is also reorganised to make it easier to read and maintain.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextenc.c | 164
On Mon, Jul 20, 2015 at 4:29 PM, Carl Eugen Hoyos ceho...@ag.or.at wrote:
Niklesh Lalwani niklesh.lalwani at iitb.ac.in writes:
This patch adds support for secondary color changes
through highlight and hilightcolor box. The code is
also reorganised to make it easier to read and maintain
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch takes care of the secondary color changes in ASS through highlight
and hilightcolor boxes.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextenc.c | 60 +
1 file changed,
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch reorganizes the code to make it easier to add support for different
text modifier boxes and other styles in the future.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextenc.c | 104
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index d564cf1..ca02107 100644
---
Updated patch attached. As Philip said, this was not a simple re-indent, so
indentation included.
Thanks,
Niklesh
From 7dff4a52e41fabe4748076e152cf600d426a5ee8 Mon Sep 17 00:00:00 2001
From: Niklesh niklesh.lalw...@iitb.ac.in
Date: Sun, 12 Jul 2015 12:44:48 +0530
Subject: [PATCH] movtextdec.c:
On Tue, Jul 7, 2015 at 3:12 AM, Clément Bœsch u...@pkh.me wrote:
On Mon, Jul 06, 2015 at 10:27:47PM +0530, Niklesh Lalwani wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 254
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 254 +---
1 file changed, 173 insertions(+), 81 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch adds support for decoding of Highlight and hilightcolor box as
defined by 3GPP standards.
The code is also reorganised to make it easier to maintain and read. Separate
functions are defined that process each type of box.
Signed-off-by:
Figured it out. Valgrind was pretty helpful.
Thanks again.
-Niklesh
On Sat, Jul 4, 2015 at 12:40 AM, Niklesh Lalwani lalwani1...@gmail.com
wrote:
Thanks guys, I'll try it out.
-Niklesh
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Hello everyone,
I am working with movtextdec.c to implement support for various Text
Modifier Boxes. I am getting a segmentation fault with m-style_temp =
av_malloc() and I cannot figure out why. I tried to play around with
several things to find out the reason, but in vain. Must be something
Thanks guys, I'll try it out.
-Niklesh
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On 27-Jun-2015 12:36 AM, Philip Langdale phil...@overt.org wrote:
On 2015-06-26 09:48, Niklesh Lalwani wrote:
The output produced here was actually different from the expected. Hence
the test failed. I produced ASS file for both the original file and the
encoded file. The ass file produced
information associated here as far as I can see.
Please correct me if I'm going wrong here.
Thanks,
Niklesh
On Tue, 23 Jun 2015 22:09:20 +0200
Michael Niedermayer michae...@gmx.at wrote:
On Wed, Jun 24, 2015 at 01:25:53AM +0530, Niklesh Lalwani wrote:
Updated patch.
Compiles without any
Hi all,
I am having trouble in running single fate tests. I want to perform the
test binsub-movtextenc. I am using the following command- make
fate-binsub-movtextenc FATE = /home/niklesh/FFmpeg/fate-suite/ and the
target file MovText_capability_tester.mp4 is located in
On 23-Jun-2015 8:41 PM, Philip Langdale phil...@overt.org wrote:
On Tue, 23 Jun 2015 16:54:08 +0200
wm4 nfx...@googlemail.com wrote:
In my opinion these warnings should either be silenced, or an
av_bprint function taking void* should be added and used. While the
warning is indeed a false
Updated patch.
Compiles without any warnings. Tested too.
Thanks,
Niklesh
On Tue, Jun 23, 2015 at 9:42 PM, Niklesh Lalwani niklesh.lalw...@iitb.ac.in
wrote:
On 23-Jun-2015 8:41 PM, Philip Langdale phil...@overt.org wrote:
On Tue, 23 Jun 2015 16:54:08 +0200
wm4 nfx...@googlemail.com
On 6/23/15, Philip Langdale phil...@overt.org wrote:
I got a bunch of warnings when I compiled it. Please fix.
Thanks.
--
CC libavcodec/movtextenc.o
libavcodec/movtextenc.c: In function ‘mov_text_style_cb’:
Updated patch.
Thanks,
Niklesh
0002-movtextenc.c-Support-for-Bold-Italic-and-Underlined-.patch
Description: Binary data
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Updated patch.
Thanks,
Niklesh
0001-movtextdec.c-Improve-upon-dynarrays-and-text_to_ass.patch
Description: Binary data
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, Clément Bœsch u...@pkh.me wrote:
On Wed, Jun 17, 2015 at 08:43:26PM +0530, Niklesh Lalwani wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Support for Bold, Italic and Underlined styles. The style information is
appended into the buffer after the text. Dynarray is used to account for
multiple
Updated patch.
Thanks,
Niklesh
movtextenc.c-Support-for-Bold-Italic-and-Underlined-.patch
Description: Binary data
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Updated patch attached.
On 18-Jun-2015 2:52 PM, Clément Bœsch u...@pkh.me wrote:
av_dynarray_add(style_flags, index, flag);
+s_temp-style_flag = AV_RB8(tsmb);
+count = i;
+av_dynarray_add(s, count, s_temp);
missing check
(make
Yes, the patch is for single style record only. I'll work on multiple
style records now.
Thanks,
Niklesh
On 6/12/15, Philip Langdale phil...@overt.org wrote:
On Thu, 11 Jun 2015 10:18:53 +0530
Niklesh Lalwani niklesh.lalw...@iitb.ac.in wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Tested on iPhone too. You might need to enable the subtitles first.
Thanks,
Niklesh
On 11-Jun-2015 2:22 PM, Carl Eugen Hoyos ceho...@ag.or.at wrote:
Niklesh Lalwani niklesh.lalwani at iitb.ac.in writes:
Tested on QuickTime 10.3 on OSX
Did you also test on an iPhone or iPad?
Carl Eugen
Ok so it goes like this.
We first find out the height and width of the video stream from the header
box. The dimensions of the text track (subtitle track) is then set (in
pixels). Here, we have used the width equal to the width of the video, and
height equal to 1/10 of the video height.
The write
From: Niklesh niklesh.lalw...@iitb.ac.in
Encoding of bold, Italic, underlined styles for 3gpp timed text subtitles. All
the formatting information is appended into the buffer after the text, unlike
other encoders like srt, which can write out styling information as it goes.
Another tricky part
Tested on QuickTime 10.3 on OSX, and VLC. For some reason, it doesn't work
on Quicktime Windows, I can't figure out why.
Thanks,
Niklesh
On Thu, Jun 11, 2015 at 10:18 AM, Niklesh Lalwani
niklesh.lalw...@iitb.ac.in wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Encoding of bold, Italic
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch mostly replicates the concept patch posted by Philip
https://ffmpeg.org/pipermail/ffmpeg-devel/2013-March/140299.html. This sets the
proper dimensions for the subtitle tracks, by making use of the height and
width of the video stream. The
On 27-May-2015 9:38 PM, Clément Bœsch u...@pkh.me wrote:
Unless I'm mistaken, my understanding is that srt_style_apply() honors the
global style of the dialog. Typically in ASS, each dialogue has is
associated with a style (generally Default but can be another one
defined in the header), so
Hi everyone,
I was trying to understand how to encode the style descriptors for mov text
subtitles. Currently, I am looking at srtenc.c.
I see that srt_style_cb() handles the callbacks for styling information,
but then what does srt_style_apply() do? I am confused at several other
steps too.
Can
Updated Patch.
Thanks,
Niklesh
On Mon, May 25, 2015 at 9:10 PM, Philip Langdale phil...@overt.org wrote:
On Mon, 25 May 2015 00:37:03 +0530
Niklesh Lalwani niklesh.lalw...@iitb.ac.in wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
Updated.
Thanks,
Niklesh
From 00647a47883b0b547da77d3101f3f890634a85b4 Mon Sep 17 00:00:00 2001
From: Niklesh niklesh.lalw...@iitb.ac.in
Date: Mon, 25 May 2015 22:46:04 +0530
Subject: [PATCH] Improve upon dynamic arrays- movtext subtitles
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 32
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index 04e1c8a..11934f9
Do you mean using a variable equal to tracksize + 10/18? That wouldn't be
of much use imo.
-Niklesh
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Yes, that would be good. Thanks.
-Niklesh
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Updated patch.
Thanks,
Niklesh
3gpp-largeboxes-21may.patch
Description: Binary data
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I have done tracksize += 8 if there is a large box. This should account for
it?
On 20-May-2015 11:17 PM, Philip Langdale phil...@overt.org wrote:
On 2015-05-20 07:40, Niklesh Lalwani wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch is to be applied over the previous patch to fix
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 20 +---
1 file changed, 17 insertions(+), 3 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index 53ffef0..6ff02b3 100644
---
Thanks. I'll do it separately for style entries.
-Niklesh
On 20-May-2015 11:41 PM, Philip Langdale phil...@overt.org wrote:
On 2015-05-20 11:06, Niklesh Lalwani wrote:
I have done tracksize += 8 if there is a large box. This should account
for
it?
I see you did, but that's not a good
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch is to be applied over the previous patch to fix movtext crashes
(which is yet to be committed)
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 11 ++-
1 file changed, 10 insertions(+), 1 deletion(-)
Thanks Philip. Updated.
-Niklesh
3gpp-fix-crashes-19may.patch
Description: Binary data
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Updated patch.
-Niklesh
fix-movtext-crashes.patch
Description: Binary data
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From: Niklesh niklesh.lalw...@iitb.ac.in
Hi all,
This patch fixes some movtext crashes caused due to incorrect 'while' loop
condition. I will post several other patches to improve upon the code and null
pointer dereferences once this is applied.
Signed-off-by: Niklesh
Just to be clear, I need to check for avpkt-size after reading box size,
box type, style entries because there can be bad packets, otherwise the
condition should work, right?
Yes, I'll add the support for large boxes after this. I have it in my
timeline.
Thanks,
Niklesh
Oh yes. I'll correct that. Thank you.
Niklesh.
On 17-May-2015 10:40 PM, Philip Langdale phil...@overt.org wrote:
On Mon, 27 Apr 2015 04:53:26 +0530
Niklesh Lalwani niklesh.lalw...@iitb.ac.in wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw
...)
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I can try av_dynarray2_add(). Which one of these three do you think will
be a better choice?
--
Niklesh Lalwani
Third Year Undergraduate
Electrical Engineering
IIT Bombay
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be a better option.
--
Niklesh Lalwani
Third Year Undergraduate
Electrical Engineering
IIT Bombay
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On 26-Apr-2015 10:46 AM, Philip Langdale phil...@overt.org wrote:
On Sun, 26 Apr 2015 05:04:07 +0200
Michael Niedermayer michae...@gmx.at wrote:
On Sun, Apr 26, 2015 at 08:22:56AM +0530, Niklesh Lalwani wrote:
On Sun, Apr 26, 2015 at 6:56 AM, Michael Niedermayer
michae...@gmx.at
On 26-Apr-2015 4:00 PM, wm4 nfx...@googlemail.com wrote:
We usually write: text_style[i].face_style_flags
It's the same.
Got it. Thank you. :)
-Niklesh
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From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 45 -
1 file changed, 20 insertions(+), 25 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index ab4efdb..a5d995d 100644
---
On Mon, Apr 27, 2015 at 7:10 AM, Michael Niedermayer michae...@gmx.at
wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 45
-
1 file changed, 20 insertions(+),
From: Niklesh niklesh.lalw...@iitb.ac.in
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 54 +
1 file changed, 28 insertions(+), 26 deletions(-)
diff --git a/libavcodec/movtextdec.c b/libavcodec/movtextdec.c
index
On Sun, Apr 26, 2015 at 6:56 AM, Michael Niedermayer michae...@gmx.at
wrote:
+struct __attribute__((__packed__)) StyleRecord {
you cant do this
attribute packed is not ANSI/ISO C
How do I implement packed structures then here? ( since I don't want
padding for proper alignment with the
On Sun, Apr 26, 2015 at 7:05 AM, Carl Eugen Hoyos ceho...@ag.or.at
wrote:
Niklesh Lalwani niklesh.lalwani at iitb.ac.in writes:
+if ((text_style + i)-face_style_flags
This looks very strange imo...
What's wrong? I point my structure to the start of the style records
Hi,
I am really sorry for replying late. I was stuck up with my end semester
examinations. Anyways, I was working on implementing structs and passing
style_start and style_end as indices rather than addresses, but with no
proper results till now. Here is my previous patch improved with C code
From: Niklesh niklesh.lalw...@iitb.ac.in
Updated Patch. This patch stores indices in style_start and style_end rather
than addresses. Also corrected a bug while using av_dyarray_add() which went
unnoticed for the particular test samples used.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
Thank you for your suggestions.
I'll try to do as much as I can before the deadline.
-Niklesh
On Wed, Apr 22, 2015 at 10:57 PM, Philip Langdale phil...@overt.org wrote:
On 2015-04-22 03:10, Niklesh Lalwani wrote:
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch supports decoding of Bold
From: Niklesh niklesh.lalw...@iitb.ac.in
Updated patch for decoding of Bold-Italic-Underlined style records for 3gpp
timed text. Fixed several build warnings.
Signed-off-by: Niklesh niklesh.lalw...@iitb.ac.in
---
libavcodec/movtextdec.c | 91 +
1
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch supports decoding of Bold, Italic, Underlined styles for 3gpp timed
text. While the code can be improved upon to make it more clean and well
structured, this works for now, even for multiple style records. Suggestions
awaited.
Signed-off-by:
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch is a part of my qualification task to implement support for Bold,
Italic, and Underlined style records for 3GPP timed text subtitles. I am
continuing Wesley's work. This patch supports decoding of no more than one
style record. Patch[2/2]
From: Niklesh niklesh.lalw...@iitb.ac.in
This patch attempts to use dynamic arrays to support multiple style records.
However, I am unable to get proper output with using av_dynamic_array(). It
seems I am not using this function properly. Can anyone explain?
Signed-off-by: Niklesh
Apologies. I'll do that.
I am relatively new to git, and hence wasn't able to send as you had asked.
Thanks
Niklesh
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Hi Everyone,
This is the fix for issue #2622 https://trac.ffmpeg.org/ticket/2622.
These changes enables to remux m2ts file so that the new file has playable
subtitles.
Thanks,
Niklesh Lalwani
---
libavformat/mpegts.h| 2 ++
libavformat/mpegtsenc.c | 3 +++
2 files changed, 5 insertions
is maybe due to
missing description for HDMV_PGS_SUBTITLE under case AVMEDIA_TYPE_SUBTITLE
in mpegtsenc.c. Can anyone explain what is going on with the descriptor
handing?
Thanks
Niklesh Lalwani
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