Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Jan 08, 2018 at 05:03:32PM -0800, Jacob Trimble wrote: > On Mon, Jan 8, 2018 at 11:40 AM, Jacob Trimble wrote: > >> I'd assume we'd wait with applying this until the mp4 patch that uses > >> it is reviewed. I'm fine with this patch and I think it can be pushed > >> as

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Jan 8, 2018 at 11:40 AM, Jacob Trimble wrote: >> I'd assume we'd wait with applying this until the mp4 patch that uses >> it is reviewed. I'm fine with this patch and I think it can be pushed >> as it is, although I just noticed an APIchanges entry and minor version

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

> I'd assume we'd wait with applying this until the mp4 patch that uses > it is reviewed. I'm fine with this patch and I think it can be pushed > as it is, although I just noticed an APIchanges entry and minor version > bump is actually missing. You could add them when sending the final > patch

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On 1/5/2018 7:32 PM, Michael Niedermayer wrote: > On Fri, Jan 05, 2018 at 08:27:41PM +0100, wm4 wrote: >> On Fri, 5 Jan 2018 10:22:31 -0800 >> Jacob Trimble wrote: >> >>> Just noticed the new files were in libavcodec, moved to libavutil. >>> Can someone please

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, Jan 05, 2018 at 08:27:41PM +0100, wm4 wrote: > On Fri, 5 Jan 2018 10:22:31 -0800 > Jacob Trimble wrote: > > > Just noticed the new files were in libavcodec, moved to libavutil. > > Can someone please review this so it can be pushed. I have the MP4 > >

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, Jan 05, 2018 at 10:22:31AM -0800, Jacob Trimble wrote: > On Tue, Jan 2, 2018 at 9:57 AM, Jacob Trimble wrote: > > On Wed, Dec 20, 2017 at 4:31 PM, wm4 wrote: > >> On Wed, 20 Dec 2017 15:10:43 -0800 > >> Jacob Trimble

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Dec 18, 2017 at 11:17:48AM -0800, Jacob Trimble wrote: > >> @@ -1327,6 +1384,19 @@ enum AVPacketSideDataType { > >> */ > >> AV_PKT_DATA_A53_CC, > >> > >> +/** > >> + * This side data is encryption "initialization data". > >> + * For MP4 this is the entire 'pssh' box.

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, 5 Jan 2018 10:22:31 -0800 Jacob Trimble wrote: > Just noticed the new files were in libavcodec, moved to libavutil. > Can someone please review this so it can be pushed. I have the MP4 > implementation ready and I would like to get that reviewed and

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, Jan 2, 2018 at 9:57 AM, Jacob Trimble wrote: > On Wed, Dec 20, 2017 at 4:31 PM, wm4 wrote: >> On Wed, 20 Dec 2017 15:10:43 -0800 >> Jacob Trimble wrote: >> >>> From 1508d19e9f7acf43d76010ce54d59ff204613601

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Wed, Dec 20, 2017 at 4:31 PM, wm4 wrote: > On Wed, 20 Dec 2017 15:10:43 -0800 > Jacob Trimble wrote: > >> From 1508d19e9f7acf43d76010ce54d59ff204613601 Mon Sep 17 00:00:00 2001 >> From: Jacob Trimble >> Date: Tue,

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Wed, 20 Dec 2017 15:10:43 -0800 Jacob Trimble wrote: > From 1508d19e9f7acf43d76010ce54d59ff204613601 Mon Sep 17 00:00:00 2001 > From: Jacob Trimble > Date: Tue, 5 Dec 2017 14:52:22 -0800 > Subject: [PATCH] avcodec/avcodec.h: Add

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Wed, Dec 20, 2017 at 12:23 PM, wm4 wrote: > On Wed, 20 Dec 2017 12:07:09 -0800 > Jacob Trimble wrote: > >> On Tue, Dec 19, 2017 at 3:05 PM, wm4 wrote: >> > On Tue, 19 Dec 2017 14:20:38 -0800 >> > Jacob Trimble

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Wed, 20 Dec 2017 12:07:09 -0800 Jacob Trimble wrote: > On Tue, Dec 19, 2017 at 3:05 PM, wm4 wrote: > > On Tue, 19 Dec 2017 14:20:38 -0800 > > Jacob Trimble wrote: > > > >> > I don't think this is

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, Dec 19, 2017 at 3:05 PM, wm4 wrote: > On Tue, 19 Dec 2017 14:20:38 -0800 > Jacob Trimble wrote: > >> > I don't think this is sane. So far, side data could simply be copied >> > with memcpy, and having pointers to non-static data

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, 19 Dec 2017 14:20:38 -0800 Jacob Trimble wrote: > > You pretty much did. Side data is an ffmpeg internal concept, and if > > your hypothetical streaming protocol needs special support for side > > data, it's automatically relying on ffmpeg internals.

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

> You pretty much did. Side data is an ffmpeg internal concept, and if > your hypothetical streaming protocol needs special support for side > data, it's automatically relying on ffmpeg internals. I thought side data was public data? Doesn't it contain public info like display info and required

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Dec 18, 2017 at 06:29:14PM -0500, Ronald S. Bultje wrote: > Hi, > > On Mon, Dec 18, 2017 at 6:00 PM, Michael Niedermayer > wrote: > > > If you decode this again you need the side data in the format of the > > platform > > the decoder runs on. This is very very

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, 19 Dec 2017 01:14:37 +0100 Michael Niedermayer wrote: > On Tue, Dec 19, 2017 at 12:17:11AM +0100, wm4 wrote: > > On Tue, 19 Dec 2017 00:00:15 +0100 > > Michael Niedermayer wrote: > > > > > On Mon, Dec 18, 2017 at 10:28:14PM +0100, wm4

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, Dec 19, 2017 at 12:17:11AM +0100, wm4 wrote: > On Tue, 19 Dec 2017 00:00:15 +0100 > Michael Niedermayer wrote: > > > On Mon, Dec 18, 2017 at 10:28:14PM +0100, wm4 wrote: > > > On Mon, 18 Dec 2017 22:17:14 +0100 > > > Michael Niedermayer

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, 19 Dec 2017 00:36:36 +0100 Carl Eugen Hoyos wrote: > 2017-12-19 0:17 GMT+01:00 wm4 : > > [...] > > Instead of sending random insults, could you just go away? Why don't you follow your own advice? At this point you're acting like a miserable

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

2017-12-19 0:17 GMT+01:00 wm4 : [...] Instead of sending random insults, could you just go away? Carl Eugen ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

Hi, On Mon, Dec 18, 2017 at 6:00 PM, Michael Niedermayer wrote: > If you decode this again you need the side data in the format of the > platform > the decoder runs on. This is very very basic logic. Something must convert > it Right, this concept is typically called

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, 19 Dec 2017 00:00:15 +0100 Michael Niedermayer wrote: > On Mon, Dec 18, 2017 at 10:28:14PM +0100, wm4 wrote: > > On Mon, 18 Dec 2017 22:17:14 +0100 > > Michael Niedermayer wrote: > > > > > On Mon, Dec 18, 2017 at 10:02:52PM +0100, wm4

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Dec 18, 2017 at 10:28:14PM +0100, wm4 wrote: > On Mon, 18 Dec 2017 22:17:14 +0100 > Michael Niedermayer wrote: > > > On Mon, Dec 18, 2017 at 10:02:52PM +0100, wm4 wrote: > > > On Mon, 18 Dec 2017 21:38:24 +0100 > > > Michael Niedermayer

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, 18 Dec 2017 22:17:14 +0100 Michael Niedermayer wrote: > On Mon, Dec 18, 2017 at 10:02:52PM +0100, wm4 wrote: > > On Mon, 18 Dec 2017 21:38:24 +0100 > > Michael Niedermayer wrote: > > > > > On Mon, Dec 18, 2017 at 04:56:08PM -0300, James

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Dec 18, 2017 at 10:02:52PM +0100, wm4 wrote: > On Mon, 18 Dec 2017 21:38:24 +0100 > Michael Niedermayer wrote: > > > On Mon, Dec 18, 2017 at 04:56:08PM -0300, James Almer wrote: > > > On 12/18/2017 4:52 PM, wm4 wrote: > > > > On Fri, 15 Dec 2017 14:24:17 -0800 >

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, 18 Dec 2017 21:38:24 +0100 Michael Niedermayer wrote: > On Mon, Dec 18, 2017 at 04:56:08PM -0300, James Almer wrote: > > On 12/18/2017 4:52 PM, wm4 wrote: > > > On Fri, 15 Dec 2017 14:24:17 -0800 > > > Jacob Trimble wrote: > >

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, 18 Dec 2017 16:56:08 -0300 James Almer wrote: > On 12/18/2017 4:52 PM, wm4 wrote: > > On Fri, 15 Dec 2017 14:24:17 -0800 > > Jacob Trimble wrote: > > > >> From a1b2cbcb7da4da69685f8f1299b70b672ce448e3 Mon Sep 17 00:00:00 2001 > >>

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Mon, Dec 18, 2017 at 04:56:08PM -0300, James Almer wrote: > On 12/18/2017 4:52 PM, wm4 wrote: > > On Fri, 15 Dec 2017 14:24:17 -0800 > > Jacob Trimble wrote: > > > >> From a1b2cbcb7da4da69685f8f1299b70b672ce448e3 Mon Sep 17 00:00:00 2001 > >> From: Jacob

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On 12/18/2017 4:52 PM, wm4 wrote: > On Fri, 15 Dec 2017 14:24:17 -0800 > Jacob Trimble wrote: > >> From a1b2cbcb7da4da69685f8f1299b70b672ce448e3 Mon Sep 17 00:00:00 2001 >> From: Jacob Trimble >> Date: Tue, 5 Dec 2017 14:52:22 -0800 >>

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, 15 Dec 2017 14:24:17 -0800 Jacob Trimble wrote: > From a1b2cbcb7da4da69685f8f1299b70b672ce448e3 Mon Sep 17 00:00:00 2001 > From: Jacob Trimble > Date: Tue, 5 Dec 2017 14:52:22 -0800 > Subject: [PATCH] avcodec/avcodec.h: Add

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

>> @@ -1327,6 +1384,19 @@ enum AVPacketSideDataType { >> */ >> AV_PKT_DATA_A53_CC, >> >> +/** >> + * This side data is encryption "initialization data". >> + * For MP4 this is the entire 'pssh' box. >> + * For WebM this is the key ID. >> + */ >> +

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, Dec 15, 2017 at 02:24:17PM -0800, Jacob Trimble wrote: > >> + > >> +/** The ID of the key used to encrypt the packet. */ > >> +uint8_t key_id[16]; > >> + > >> +/** The initialization vector. */ > >> +uint8_t iv[16]; > > > > what happens if the key or iv is longer ? > >

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

>> + >> +/** The ID of the key used to encrypt the packet. */ >> +uint8_t key_id[16]; >> + >> +/** The initialization vector. */ >> +uint8_t iv[16]; > > what happens if the key or iv is longer ? Both are specified by common encryption to be exactly that size. To be able to be

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, Dec 08, 2017 at 10:06:13AM -0800, Jacob Trimble wrote: > On Tue, Dec 5, 2017 at 5:22 PM, Derek Buitenhuis > wrote: > > On 12/6/2017 12:36 AM, Jacob Trimble wrote: > >> Would a 0-length array work? Otherwise I would need to have it be a > >> 1-length array and

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Fri, Dec 8, 2017 at 10:06 AM, Jacob Trimble wrote: > On Tue, Dec 5, 2017 at 5:22 PM, Derek Buitenhuis > wrote: >> On 12/6/2017 12:36 AM, Jacob Trimble wrote: >>> Would a 0-length array work? Otherwise I would need to have it be a >>> 1-length

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, Dec 5, 2017 at 5:22 PM, Derek Buitenhuis wrote: > On 12/6/2017 12:36 AM, Jacob Trimble wrote: >> Would a 0-length array work? Otherwise I would need to have it be a >> 1-length array and have to account for that when calculating the size >> to allocate; it

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On 12/6/2017 12:36 AM, Jacob Trimble wrote: > Would a 0-length array work? Otherwise I would need to have it be a > 1-length array and have to account for that when calculating the size > to allocate; it would also require a comment to ignore the size of the > array. Aren't 0-length arrays a GNU

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On Tue, Dec 5, 2017 at 3:25 PM, Derek Buitenhuis wrote: > On 12/5/2017 11:00 PM, Jacob Trimble wrote: >> Also, can I use the flexible array member feature, it was introduced >> in C99? Would a 0-length array be better? > > No, I don't think this would be OK inside a

Re: [FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

On 12/5/2017 11:00 PM, Jacob Trimble wrote: > Also, can I use the flexible array member feature, it was introduced > in C99? Would a 0-length array be better? No, I don't think this would be OK inside a public header, unfortunately. - Derek ___

[FFmpeg-devel] [RFC] avcodec/avcodec.h: Add encryption info side data

I am trying to playback encrypted content. I know that libavformat handles decryption already when using clearkey, but I want to handle the decryption myself. The encryption info is parsed in mov.c but not exposed to the app. This adds some structures to hold new side-data that will hold the