[FFmpeg-devel] [PATCH v24 6/9] avformat/mov_muxer: Extended MOV muxer to handle EVC video content

[Michael Niedermayer]

On Mon, Jun 12, 2023 at 02:30:27PM +0200, Dawid Kozinski wrote:
> - Changes in mov_write_video_tag function to handle EVC elementary stream
> - Provided structure EVCDecoderConfigurationRecord that specifies the decoder configuration information for ISO/IEC 23094-1 video content
> 
> Signed-off-by: Dawid Kozinski <d.kozinski at samsung.com>
> ---
>  libavformat/Makefile    |   2 +-
>  libavformat/evc.c       | 422 ++++++++++++++++++++++++++++++++++++++++
>  libavformat/evc.h       |  44 +++++
>  libavformat/isom_tags.c |   2 +
>  libavformat/movenc.c    |  33 ++++
>  5 files changed, 502 insertions(+), 1 deletion(-)
>  create mode 100644 libavformat/evc.c
>  create mode 100644 libavformat/evc.h
> 
> diff --git a/libavformat/Makefile b/libavformat/Makefile
> index 6e4231fda2..d3503196e3 100644
> --- a/libavformat/Makefile
> +++ b/libavformat/Makefile
> @@ -364,7 +364,7 @@ OBJS-$(CONFIG_MOV_DEMUXER)               += mov.o mov_chan.o mov_esds.o \
>  OBJS-$(CONFIG_MOV_MUXER)                 += movenc.o av1.o avc.o hevc.o vpcc.o \
>                                              movenchint.o mov_chan.o rtp.o \
>                                              movenccenc.o movenc_ttml.o rawutils.o \
> -                                            dovi_isom.o
> +                                            dovi_isom.o evc.o
>  OBJS-$(CONFIG_MP2_MUXER)                 += rawenc.o
>  OBJS-$(CONFIG_MP3_DEMUXER)               += mp3dec.o replaygain.o
>  OBJS-$(CONFIG_MP3_MUXER)                 += mp3enc.o rawenc.o id3v2enc.o
> diff --git a/libavformat/evc.c b/libavformat/evc.c
> new file mode 100644
> index 0000000000..431cb107e3
> --- /dev/null
> +++ b/libavformat/evc.c
> @@ -0,0 +1,422 @@
> +/*
> + * EVC helper functions for muxers
> + * Copyright (c) 2022 Dawid Kozinski <d.kozinski at samsung.com>
> + *
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * FFmpeg is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with FFmpeg; if not, write to the Free Software
> + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
> + */

[...]

> +        nalu_type = ff_evc_get_nalu_type(data, bytes_to_read, pb);

functions shared between libavcodec and libavformat need an av*/avpriv* prefix
otherwise linking will fail with shared libs as ff* isnt exported


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Many that live deserve death. And some that die deserve life. Can you give
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