[FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-27 Thread Antoine Soulier via ffmpeg-devel
A file format is described in Bluetooth SIG LC3 and ETSI TS 103 634, for
test purpose. This is the format implemented here.

Signed-off-by: Antoine Soulier 
---
 doc/muxers.texi  |   6 ++
 libavformat/Makefile |   2 +
 libavformat/allformats.c |   2 +
 libavformat/lc3dec.c | 135 +++
 libavformat/lc3enc.c | 102 +
 5 files changed, 247 insertions(+)
 create mode 100644 libavformat/lc3dec.c
 create mode 100644 libavformat/lc3enc.c

diff --git a/doc/muxers.texi b/doc/muxers.texi
index a10a8e216f..9687746c30 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -2612,6 +2612,12 @@ WebDAV server every second:
 ffmpeg -f x11grab -framerate 1 -i :0.0 -q:v 6 -update 1 -protocol_opts 
method=PUT http://example.com/desktop.jpg
 @end example
 
+@section lc3
+Bluetooth SIG Low Complexity Communication Codec audio (LC3), or
+ETSI TS 103 634 Low Complexity Communication Codec plus (LC3plus).
+
+This muxer accepts a single @code{lc3} audio stream.
+
 @section matroska
 
 Matroska container muxer.
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 44aa485029..4961c42852 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -332,6 +332,8 @@ OBJS-$(CONFIG_KVAG_DEMUXER)  += kvag.o
 OBJS-$(CONFIG_KVAG_MUXER)+= kvag.o rawenc.o
 OBJS-$(CONFIG_LAF_DEMUXER)   += lafdec.o
 OBJS-$(CONFIG_LATM_MUXER)+= latmenc.o rawenc.o
+OBJS-$(CONFIG_LC3_DEMUXER)   += lc3dec.o
+OBJS-$(CONFIG_LC3_MUXER) += lc3enc.o
 OBJS-$(CONFIG_LMLM4_DEMUXER) += lmlm4.o
 OBJS-$(CONFIG_LOAS_DEMUXER)  += loasdec.o rawdec.o
 OBJS-$(CONFIG_LUODAT_DEMUXER)+= luodatdec.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index e15d0fa6d7..e225354faf 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -252,6 +252,8 @@ extern const FFInputFormat  ff_kvag_demuxer;
 extern const FFOutputFormat ff_kvag_muxer;
 extern const FFInputFormat  ff_laf_demuxer;
 extern const FFOutputFormat ff_latm_muxer;
+extern const FFInputFormat  ff_lc3_demuxer;
+extern const FFOutputFormat ff_lc3_muxer;
 extern const FFInputFormat  ff_lmlm4_demuxer;
 extern const FFInputFormat  ff_loas_demuxer;
 extern const FFInputFormat  ff_luodat_demuxer;
diff --git a/libavformat/lc3dec.c b/libavformat/lc3dec.c
new file mode 100644
index 00..9ca9825f1b
--- /dev/null
+++ b/libavformat/lc3dec.c
@@ -0,0 +1,135 @@
+/*
+ * LC3 demuxer
+ * Copyright (C) 2024  Antoine Soulier 
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * Based on the file format specified by :
+ *
+ * - Bluetooth SIG - Low Complexity Communication Codec Test Suite
+ *   https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=502301
+ *   3.2.8.2 Reference LC3 Codec Bitstream Format
+ *
+ * - ETSI TI 103 634 V1.4.1 - Low Complexity Communication Codec plus
+ *   
https://www.etsi.org/deliver/etsi_ts/103600_103699/103634/01.04.01_60/ts_103634v010401p.pdf
+ *   LC3plus conformance script package
+ */
+
+#include "libavcodec/packet.h"
+#include "libavutil/intreadwrite.h"
+
+#include "avformat.h"
+#include "avio.h"
+#include "demux.h"
+#include "internal.h"
+
+typedef struct LC3DemuxContext {
+int frame_samples;
+int64_t position;
+int64_t length;
+} LC3DemuxContext;
+
+static int lc3_read_header(AVFormatContext *s)
+{
+LC3DemuxContext *lc3 = s->priv_data;
+AVStream *st = NULL;
+uint16_t tag, hdr_size;
+uint16_t frame_us;
+uint32_t length;
+int ep_mode, hr_mode;
+int srate_hz, channels, bit_rate;
+int num_extra_params, ret;
+
+tag = avio_rb16(s->pb);
+hdr_size = avio_rl16(s->pb);
+
+if (tag != 0x1ccc || hdr_size < 9 * sizeof(uint16_t))
+return AVERROR_INVALIDDATA;
+
+num_extra_params = hdr_size / sizeof(uint16_t) - 9;
+
+srate_hz = avio_rl16(s->pb) * 100;
+bit_rate = avio_rl16(s->pb) * 100;
+channels = avio_rl16(s->pb);
+frame_us = avio_rl16(s->pb) * 10;
+ep_mode  = avio_rl16(s->pb) != 0;
+length   = avio_rl32(s->pb);
+hr_mode  = num_extra_params >= 1 && avio_rl16(s->pb);
+
+st = avformat_new_stream(s, NULL);
+if (!st)
+return AVE

Re: [FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-28 Thread Paul B Mahol
This format actually supports seeking.

The proposed solution here is sub-optimal.

On Wed, Mar 27, 2024 at 11:22 PM Antoine Soulier via ffmpeg-devel <
ffmpeg-devel@ffmpeg.org> wrote:

> A file format is described in Bluetooth SIG LC3 and ETSI TS 103 634, for
> test purpose. This is the format implemented here.
>
> Signed-off-by: Antoine Soulier 
> ---
>  doc/muxers.texi  |   6 ++
>  libavformat/Makefile |   2 +
>  libavformat/allformats.c |   2 +
>  libavformat/lc3dec.c | 135 +++
>  libavformat/lc3enc.c | 102 +
>  5 files changed, 247 insertions(+)
>  create mode 100644 libavformat/lc3dec.c
>  create mode 100644 libavformat/lc3enc.c
>
> diff --git a/doc/muxers.texi b/doc/muxers.texi
> index a10a8e216f..9687746c30 100644
> --- a/doc/muxers.texi
> +++ b/doc/muxers.texi
> @@ -2612,6 +2612,12 @@ WebDAV server every second:
>  ffmpeg -f x11grab -framerate 1 -i :0.0 -q:v 6 -update 1 -protocol_opts
> method=PUT http://example.com/desktop.jpg
>  @end example
>
> +@section lc3
> +Bluetooth SIG Low Complexity Communication Codec audio (LC3), or
> +ETSI TS 103 634 Low Complexity Communication Codec plus (LC3plus).
> +
> +This muxer accepts a single @code{lc3} audio stream.
> +
>  @section matroska
>
>  Matroska container muxer.
> diff --git a/libavformat/Makefile b/libavformat/Makefile
> index 44aa485029..4961c42852 100644
> --- a/libavformat/Makefile
> +++ b/libavformat/Makefile
> @@ -332,6 +332,8 @@ OBJS-$(CONFIG_KVAG_DEMUXER)  += kvag.o
>  OBJS-$(CONFIG_KVAG_MUXER)+= kvag.o rawenc.o
>  OBJS-$(CONFIG_LAF_DEMUXER)   += lafdec.o
>  OBJS-$(CONFIG_LATM_MUXER)+= latmenc.o rawenc.o
> +OBJS-$(CONFIG_LC3_DEMUXER)   += lc3dec.o
> +OBJS-$(CONFIG_LC3_MUXER) += lc3enc.o
>  OBJS-$(CONFIG_LMLM4_DEMUXER) += lmlm4.o
>  OBJS-$(CONFIG_LOAS_DEMUXER)  += loasdec.o rawdec.o
>  OBJS-$(CONFIG_LUODAT_DEMUXER)+= luodatdec.o
> diff --git a/libavformat/allformats.c b/libavformat/allformats.c
> index e15d0fa6d7..e225354faf 100644
> --- a/libavformat/allformats.c
> +++ b/libavformat/allformats.c
> @@ -252,6 +252,8 @@ extern const FFInputFormat  ff_kvag_demuxer;
>  extern const FFOutputFormat ff_kvag_muxer;
>  extern const FFInputFormat  ff_laf_demuxer;
>  extern const FFOutputFormat ff_latm_muxer;
> +extern const FFInputFormat  ff_lc3_demuxer;
> +extern const FFOutputFormat ff_lc3_muxer;
>  extern const FFInputFormat  ff_lmlm4_demuxer;
>  extern const FFInputFormat  ff_loas_demuxer;
>  extern const FFInputFormat  ff_luodat_demuxer;
> diff --git a/libavformat/lc3dec.c b/libavformat/lc3dec.c
> new file mode 100644
> index 00..9ca9825f1b
> --- /dev/null
> +++ b/libavformat/lc3dec.c
> @@ -0,0 +1,135 @@
> +/*
> + * LC3 demuxer
> + * Copyright (C) 2024  Antoine Soulier 
> + *
> + * 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
> + */
> +
> +/**
> + * @file
> + * Based on the file format specified by :
> + *
> + * - Bluetooth SIG - Low Complexity Communication Codec Test Suite
> + *
> https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=502301
> + *   3.2.8.2 Reference LC3 Codec Bitstream Format
> + *
> + * - ETSI TI 103 634 V1.4.1 - Low Complexity Communication Codec plus
> + *
> https://www.etsi.org/deliver/etsi_ts/103600_103699/103634/01.04.01_60/ts_103634v010401p.pdf
> + *   LC3plus conformance script package
> + */
> +
> +#include "libavcodec/packet.h"
> +#include "libavutil/intreadwrite.h"
> +
> +#include "avformat.h"
> +#include "avio.h"
> +#include "demux.h"
> +#include "internal.h"
> +
> +typedef struct LC3DemuxContext {
> +int frame_samples;
> +int64_t position;
> +int64_t length;
> +} LC3DemuxContext;
> +
> +static int lc3_read_header(AVFormatContext *s)
> +{
> +LC3DemuxContext *lc3 = s->priv_data;
> +AVStream *st = NULL;
> +uint16_t tag, hdr_size;
> +uint16_t frame_us;
> +uint32_t length;
> +int ep_mode, hr_mode;
> +int srate_hz, channels, bit_rate;
> +int num_extra_params, ret;
> +
> +tag = avio_rb16(s->pb);
> +hdr_size = avio_rl16(s->pb);
> +
> +if (tag != 0x1ccc || hdr_size < 9 * sizeof(uint16_t))
> +return AVERROR

Re: [FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-28 Thread Antoine Soulier via ffmpeg-devel
I don't think it's "easy" seekable.
We cannot move to an arbitrary position:
- There is no start-code
- The frame size can be variable (not generated by the proposed encoder
implementation, but allowed).

The only possibility I see is checking that the frame size looks valid for
multiple frames.
The range of valid frame sizes is large (20 to 625 Bytes), so I can only
validate 6 bits for each 16 bits packet size read.

This format is not really designed to be seekable.
Do you think we will need it?


On Thu, Mar 28, 2024 at 2:33 AM Paul B Mahol  wrote:

> This format actually supports seeking.
>
> The proposed solution here is sub-optimal.
>
> On Wed, Mar 27, 2024 at 11:22 PM Antoine Soulier via ffmpeg-devel <
> ffmpeg-devel@ffmpeg.org> wrote:
>
>> A file format is described in Bluetooth SIG LC3 and ETSI TS 103 634, for
>> test purpose. This is the format implemented here.
>>
>> Signed-off-by: Antoine Soulier 
>> ---
>>  doc/muxers.texi  |   6 ++
>>  libavformat/Makefile |   2 +
>>  libavformat/allformats.c |   2 +
>>  libavformat/lc3dec.c | 135 +++
>>  libavformat/lc3enc.c | 102 +
>>  5 files changed, 247 insertions(+)
>>  create mode 100644 libavformat/lc3dec.c
>>  create mode 100644 libavformat/lc3enc.c
>>
>> diff --git a/doc/muxers.texi b/doc/muxers.texi
>> index a10a8e216f..9687746c30 100644
>> --- a/doc/muxers.texi
>> +++ b/doc/muxers.texi
>> @@ -2612,6 +2612,12 @@ WebDAV server every second:
>>  ffmpeg -f x11grab -framerate 1 -i :0.0 -q:v 6 -update 1 -protocol_opts
>> method=PUT http://example.com/desktop.jpg
>>  @end example
>>
>> +@section lc3
>> +Bluetooth SIG Low Complexity Communication Codec audio (LC3), or
>> +ETSI TS 103 634 Low Complexity Communication Codec plus (LC3plus).
>> +
>> +This muxer accepts a single @code{lc3} audio stream.
>> +
>>  @section matroska
>>
>>  Matroska container muxer.
>> diff --git a/libavformat/Makefile b/libavformat/Makefile
>> index 44aa485029..4961c42852 100644
>> --- a/libavformat/Makefile
>> +++ b/libavformat/Makefile
>> @@ -332,6 +332,8 @@ OBJS-$(CONFIG_KVAG_DEMUXER)  += kvag.o
>>  OBJS-$(CONFIG_KVAG_MUXER)+= kvag.o rawenc.o
>>  OBJS-$(CONFIG_LAF_DEMUXER)   += lafdec.o
>>  OBJS-$(CONFIG_LATM_MUXER)+= latmenc.o rawenc.o
>> +OBJS-$(CONFIG_LC3_DEMUXER)   += lc3dec.o
>> +OBJS-$(CONFIG_LC3_MUXER) += lc3enc.o
>>  OBJS-$(CONFIG_LMLM4_DEMUXER) += lmlm4.o
>>  OBJS-$(CONFIG_LOAS_DEMUXER)  += loasdec.o rawdec.o
>>  OBJS-$(CONFIG_LUODAT_DEMUXER)+= luodatdec.o
>> diff --git a/libavformat/allformats.c b/libavformat/allformats.c
>> index e15d0fa6d7..e225354faf 100644
>> --- a/libavformat/allformats.c
>> +++ b/libavformat/allformats.c
>> @@ -252,6 +252,8 @@ extern const FFInputFormat  ff_kvag_demuxer;
>>  extern const FFOutputFormat ff_kvag_muxer;
>>  extern const FFInputFormat  ff_laf_demuxer;
>>  extern const FFOutputFormat ff_latm_muxer;
>> +extern const FFInputFormat  ff_lc3_demuxer;
>> +extern const FFOutputFormat ff_lc3_muxer;
>>  extern const FFInputFormat  ff_lmlm4_demuxer;
>>  extern const FFInputFormat  ff_loas_demuxer;
>>  extern const FFInputFormat  ff_luodat_demuxer;
>> diff --git a/libavformat/lc3dec.c b/libavformat/lc3dec.c
>> new file mode 100644
>> index 00..9ca9825f1b
>> --- /dev/null
>> +++ b/libavformat/lc3dec.c
>> @@ -0,0 +1,135 @@
>> +/*
>> + * LC3 demuxer
>> + * Copyright (C) 2024  Antoine Soulier 
>> + *
>> + * 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
>> + */
>> +
>> +/**
>> + * @file
>> + * Based on the file format specified by :
>> + *
>> + * - Bluetooth SIG - Low Complexity Communication Codec Test Suite
>> + *
>> https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=502301
>> + *   3.2.8.2 Reference LC3 Codec Bitstream Format
>> + *
>> + * - ETSI TI 103 634 V1.4.1 - Low Complexity Communication Codec plus
>> + *
>> https://www.etsi.org/deliver/etsi_ts/103600_103699/103634/01.04.01_60/ts_103634v010401p.pdf
>> + *   LC3plus conformance script package
>> + */
>> +
>> +#include "libavcodec/packet.h"
>> +#include "libavutil/intreadwrite.h"
>> +
>> +#include "avformat.h"
>> +#i

Re: [FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-28 Thread Stefano Sabatini
On date Wednesday 2024-03-27 22:21:44 +, ffmpeg-devel Mailing List wrote:
> A file format is described in Bluetooth SIG LC3 and ETSI TS 103 634, for
> test purpose. This is the format implemented here.
> 
> Signed-off-by: Antoine Soulier 
> ---
>  doc/muxers.texi  |   6 ++
>  libavformat/Makefile |   2 +
>  libavformat/allformats.c |   2 +
>  libavformat/lc3dec.c | 135 +++
>  libavformat/lc3enc.c | 102 +
>  5 files changed, 247 insertions(+)
>  create mode 100644 libavformat/lc3dec.c
>  create mode 100644 libavformat/lc3enc.c

Note: you might add an entry for muxing/demuxing support to the
Changelog.

Looks good to me otherwise.
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Re: [FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-28 Thread Paul B Mahol
On Thu, Mar 28, 2024 at 5:40 PM Antoine Soulier  wrote:

> I don't think it's "easy" seekable.
> We cannot move to an arbitrary position:
> - There is no start-code
>

Not relevant.


> - The frame size can be variable (not generated by the proposed encoder
> implementation, but allowed).
>

Not relevant.


>
> The only possibility I see is checking that the frame size looks valid for
> multiple frames.
>

Not relevant, the only needed feature is known stored number of samples in
each packet for proper pts/timestamp generation.

The range of valid frame sizes is large (20 to 625 Bytes), so I can only
> validate 6 bits for each 16 bits packet size read.
>
> This format is not really designed to be seekable.
> Do you think we will need it?
>

I cant force you do to correct implementation.

Seeking is possible, just you are not aware of actual solution.
Hint: see other demuxers.


>
>
> On Thu, Mar 28, 2024 at 2:33 AM Paul B Mahol  wrote:
>
>> This format actually supports seeking.
>>
>> The proposed solution here is sub-optimal.
>>
>> On Wed, Mar 27, 2024 at 11:22 PM Antoine Soulier via ffmpeg-devel <
>> ffmpeg-devel@ffmpeg.org> wrote:
>>
>>> A file format is described in Bluetooth SIG LC3 and ETSI TS 103 634, for
>>> test purpose. This is the format implemented here.
>>>
>>> Signed-off-by: Antoine Soulier 
>>> ---
>>>  doc/muxers.texi  |   6 ++
>>>  libavformat/Makefile |   2 +
>>>  libavformat/allformats.c |   2 +
>>>  libavformat/lc3dec.c | 135 +++
>>>  libavformat/lc3enc.c | 102 +
>>>  5 files changed, 247 insertions(+)
>>>  create mode 100644 libavformat/lc3dec.c
>>>  create mode 100644 libavformat/lc3enc.c
>>>
>>> diff --git a/doc/muxers.texi b/doc/muxers.texi
>>> index a10a8e216f..9687746c30 100644
>>> --- a/doc/muxers.texi
>>> +++ b/doc/muxers.texi
>>> @@ -2612,6 +2612,12 @@ WebDAV server every second:
>>>  ffmpeg -f x11grab -framerate 1 -i :0.0 -q:v 6 -update 1 -protocol_opts
>>> method=PUT http://example.com/desktop.jpg
>>>  @end example
>>>
>>> +@section lc3
>>> +Bluetooth SIG Low Complexity Communication Codec audio (LC3), or
>>> +ETSI TS 103 634 Low Complexity Communication Codec plus (LC3plus).
>>> +
>>> +This muxer accepts a single @code{lc3} audio stream.
>>> +
>>>  @section matroska
>>>
>>>  Matroska container muxer.
>>> diff --git a/libavformat/Makefile b/libavformat/Makefile
>>> index 44aa485029..4961c42852 100644
>>> --- a/libavformat/Makefile
>>> +++ b/libavformat/Makefile
>>> @@ -332,6 +332,8 @@ OBJS-$(CONFIG_KVAG_DEMUXER)  += kvag.o
>>>  OBJS-$(CONFIG_KVAG_MUXER)+= kvag.o rawenc.o
>>>  OBJS-$(CONFIG_LAF_DEMUXER)   += lafdec.o
>>>  OBJS-$(CONFIG_LATM_MUXER)+= latmenc.o rawenc.o
>>> +OBJS-$(CONFIG_LC3_DEMUXER)   += lc3dec.o
>>> +OBJS-$(CONFIG_LC3_MUXER) += lc3enc.o
>>>  OBJS-$(CONFIG_LMLM4_DEMUXER) += lmlm4.o
>>>  OBJS-$(CONFIG_LOAS_DEMUXER)  += loasdec.o rawdec.o
>>>  OBJS-$(CONFIG_LUODAT_DEMUXER)+= luodatdec.o
>>> diff --git a/libavformat/allformats.c b/libavformat/allformats.c
>>> index e15d0fa6d7..e225354faf 100644
>>> --- a/libavformat/allformats.c
>>> +++ b/libavformat/allformats.c
>>> @@ -252,6 +252,8 @@ extern const FFInputFormat  ff_kvag_demuxer;
>>>  extern const FFOutputFormat ff_kvag_muxer;
>>>  extern const FFInputFormat  ff_laf_demuxer;
>>>  extern const FFOutputFormat ff_latm_muxer;
>>> +extern const FFInputFormat  ff_lc3_demuxer;
>>> +extern const FFOutputFormat ff_lc3_muxer;
>>>  extern const FFInputFormat  ff_lmlm4_demuxer;
>>>  extern const FFInputFormat  ff_loas_demuxer;
>>>  extern const FFInputFormat  ff_luodat_demuxer;
>>> diff --git a/libavformat/lc3dec.c b/libavformat/lc3dec.c
>>> new file mode 100644
>>> index 00..9ca9825f1b
>>> --- /dev/null
>>> +++ b/libavformat/lc3dec.c
>>> @@ -0,0 +1,135 @@
>>> +/*
>>> + * LC3 demuxer
>>> + * Copyright (C) 2024  Antoine Soulier 
>>> + *
>>> + * 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
>>> + */
>>> +
>>> +/**
>>> + * @file
>>> + * Based on the file format specified by :
>>> + *
>>> + * - Bluetooth SIG - Low Complexity Communication Codec Test Suit

Re: [FFmpeg-devel] [PATCH 3/4] avformat/lc3: Add file format for LC3/LC3plus transport

2024-03-29 Thread Antoine Soulier via ffmpeg-devel
You're right, I was not aware at all.
I have pushed a patch that does the job.
PTAL, thanks.
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