On Tue, Jul 17, 2018 at 8:15 PM <archer.ch...@gmail.com> wrote:
>
> From: Archer Chang <archerch...@gmail.com>
>
> Some QNAP surveillance system will only change audio type id
> WAVE_FORMAT_RAW_AAC1
> to 0x0AAC but not audio track itself.
> ---
> libavformat/riffdec.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/libavformat/riffdec.c b/libavformat/riffdec.c
> index b448f91..fe22610 100644
> --- a/libavformat/riffdec.c
> +++ b/libavformat/riffdec.c
> @@ -127,6 +127,8 @@ int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
> if (id == 0xFFFE) {
> par->codec_tag = 0;
> } else {
> + if(id == 0x0AAC)
> + id = 0x00FF; /* Change Audio codec id to WAVE_FORMAT_RAW_AAC1 */
> par->codec_tag = id;
> par->codec_id = ff_wav_codec_get_id(id,
> par->bits_per_coded_sample);
This absolutely does not seem like the place to put something like
this. If this is a common tag, maybe it should be added to the riff
tags?
- Hendrik
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