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From: "Tomas Härdin" <git@haerdin.se>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] [MXF] - Add jpeg2000 subdescriptor in MXF file.
Date: Tue, 19 Dec 2023 14:36:11 +0100
Message-ID: <6f69f808de8c7d6080e6a61b72575717252c3a45.camel@haerdin.se> (raw)
In-Reply-To: <7c1649cd-8b35-47fa-89d6-f7dfc11350e4@ektacom.com>

> +    for ( comp = 0; comp < component_count; comp++ ) {
> +        avio_write(pb, &sc->j2k_info.j2k_comp_desc[3*comp] , 3);
> +    }

Looks like this could be simplified to just

  avio_write(pb, sc->j2k_info.j2k_comp_desc, 3*component_count);

> +    if (j2k_ncomponents != component_count) {
> +        av_log(s, AV_LOG_ERROR, "Incoherence about components image
> number.\n");
> +    }

I again feel this should be a hard error

> +    for (comp = 0; comp < j2k_ncomponents; comp++) {
> +        sc->j2k_info.j2k_comp_desc[comp*j2k_ncomponents] =
> bytestream2_get_byteu(&g);   // Bitdepth for each component
> +        sc->j2k_info.j2k_comp_desc[comp*j2k_ncomponents+1] =
> bytestream2_get_byteu(&g); // Horizontal sampling for each component
> +        sc->j2k_info.j2k_comp_desc[comp*j2k_ncomponents+2] =
> bytestream2_get_byteu(&g); // Vertical sampling for each component
> +    }

Could be simplified to a single avio_read()

/Tomas
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  reply	other threads:[~2023-12-19 13:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-08 16:25 Cédric Le Barz
2023-12-19 13:36 ` Tomas Härdin [this message]
2023-12-20 17:04   ` [FFmpeg-devel] [PATCH] [MXF] - Add jpeg2000 subdescriptor in MXF file (V2) Cédric Le Barz
2023-12-21 11:11     ` Tomas Härdin
2023-12-22  8:58       ` Cédric Le Barz
2023-12-31 13:16         ` Tomas Härdin
2023-12-31 14:45           ` Tomas Härdin

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