[FFmpeg-devel] SCTE-35 development

[Anshul]

On 12/29/2014 06:08 PM, Michael Niedermayer wrote:
> On Mon, Dec 29, 2014 at 01:31:18PM +0530, Anshul wrote:
>> On December 18, 2014 4:08:56 PM IST, Michael Niedermayer
>> <michaelni at gmx.at> wrote:
>>> On Wed, Dec 17, 2014 at 11:53:10PM +0530, Anshul wrote:
>>>> Hi
>>>>
>>>> I was doing development of scte-35  message cue in ffmpeg.
>>>>
>>>> I have attached a draft patch.
>>>>
>>>> I would like to have some comments of this community.
>>>> -Anshul
>>>>  libavcodec/Makefile     |    2 ++
>>>>  libavcodec/allcodecs.c  |    2 ++
>>>>  libavcodec/avcodec.h    |    1 +
>>>>  libavcodec/codec_desc.c |    6 ++++++
>>>>  libavformat/mpegts.c    |   40
>>> +++++++++++++++++++++++++++++++++-------
>>>>  5 files changed, 44 insertions(+), 7 deletions(-)
>>>> 4b584484a54a78c130c4bbaa48c38551b3ca75fb 
>>> 0001-trying-muxing-demuxing-of-scte_35-message-cue.patch
>>>> From 2ff4edfdeae131df72ea19005eb6ad85d5332f7c Mon Sep 17 00:00:00
>>> 2001
>>>> From: Anshul Maheshwari <anshul.ffmpeg at gmail.com>
>>>> Date: Wed, 17 Dec 2014 22:13:10 +0530
>>>> Subject: [PATCH] trying muxing demuxing of scte_35 message cue
>>>>
>>>> ---
>>>>  libavcodec/Makefile     |  2 ++
>>>>  libavcodec/allcodecs.c  |  2 ++
>>>>  libavcodec/avcodec.h    |  1 +
>>>>  libavcodec/codec_desc.c |  6 ++++++
>>>>  libavformat/mpegts.c    | 40
>>> +++++++++++++++++++++++++++++++++-------
>>>>  5 files changed, 44 insertions(+), 7 deletions(-)
>>>>
>>>> diff --git a/libavcodec/Makefile b/libavcodec/Makefile
>>>> index b35a796..9d2a49f 100644
>>>> --- a/libavcodec/Makefile
>>>> +++ b/libavcodec/Makefile
>>>> @@ -408,6 +408,7 @@ OBJS-$(CONFIG_SAMI_DECODER)            +=
>>> samidec.o ass.o
>>>>  OBJS-$(CONFIG_S302M_DECODER)           += s302m.o
>>>>  OBJS-$(CONFIG_S302M_ENCODER)           += s302menc.o
>>>>  OBJS-$(CONFIG_SANM_DECODER)            += sanm.o
>>>> +OBJS-$(CONFIG_SCTE_35_DECODER)         += scte_35.o
>>> this patch doesnt contain a scte_35.c
>>> did you forget git add ?
>>>
>>> [...]
>> I have attached another patch, still its draft.
>> I do want some opinion about the approach of this development.
>>
>> to use this patch, one can pass below command
>> ./ffmpeg -loglevel debug -i ~/test_videos/mpegwithscte35.ts -dcodec
>> cue_xml -map 0:0 -f rawvideo some.raw
>>
>> There still some issue with this patch, like I have disabled estimate
>> timing of all stream since data stream does not have similar timing, i
>> will add condition there.
>>
>> FFmpeg hangs after running command, it might be because of EOF not
>> handled properly, looking at the issue.
>>
>>
>> My vision for this patch is that we can add custom advertisement
>> if stream have scte-cue.
>>
>> This patch might also help end-user to remove advertisements automatically.
>>
>> for broadcaster it will help to show advertisement in local language.
>> or for local product.
>> just now I am very far away from my goal but will not always be.
>>
>>
>> This patch have all files which I have developed.
> ar: libavcodec/scte_35.o: No such file or directory
>
> [...]
>
>
>
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I am sorry, I attached the wrong patch file.
-Anshul
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