----- Original Message -----
From: "Matteo Battaglio" <[EMAIL PROTECTED]>
To: "ffmpeg" <[email protected]>
Sent: Tuesday, March 18, 2008 1:11 PM
Subject: [libav-user] Syntax problem in Windows
> Hi,
> I'm encountering a problem in using some ffmpeg code in my Visual
> Studio 2005 C++ project.
> It's a syntax error: I have the PixFmtInfo struct declaration, and
> after it I have the declaration and initialization of an array of
> PixFmtInfo elements, but it seams that the visual c++ compiler doesn't
> allow a declaration of an array in wich it is specified the element
> position before the element initialization:
>
> Here is the code of the struct declaration:
>
> typedef struct PixFmtInfo {
> const char *name;
> uint8_t nb_channels; /**< number of channels (including alpha) */
> uint8_t color_type; /**< color type (see FF_COLOR_xxx constants)
> */
> uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx
> constants) */
> uint8_t is_alpha : 1; /**< true if alpha can be specified */
> uint8_t x_chroma_shift; /**< X chroma subsampling factor is 2 ^ shift
> */
> uint8_t y_chroma_shift; /**< Y chroma subsampling factor is 2 ^ shift
> */
> uint8_t depth; /**< bit depth of the color components */
> } PixFmtInfo;
>
> And here is the code of the array decl. and init.
> The compiler founds a syntax error at the [ symbol of [PIX_FMT_YUV420P]
>
> /* this table gives more information about formats */
> static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
> /* YUV formats */
> [PIX_FMT_YUV420P] = {
> .name = "yuv420p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 1,
> },
> [PIX_FMT_YUV422P] = {
> .name = "yuv422p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUV444P] = {
> .name = "yuv444p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUYV422] = {
> .name = "yuyv422",
> .nb_channels = 1,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 0,
> },
> [PIX_FMT_UYVY422] = {
> .name = "uyvy422",
> .nb_channels = 1,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUV410P] = {
> .name = "yuv410p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 2, .y_chroma_shift = 2,
> },
> [PIX_FMT_YUV411P] = {
> .name = "yuv411p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 2, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUV440P] = {
> .name = "yuv440p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 1,
> },
>
> /* YUV formats with alpha plane */
> [PIX_FMT_YUVA420P] = {
> .name = "yuva420p",
> .nb_channels = 4,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 1,
> },
>
> /* JPEG YUV */
> [PIX_FMT_YUVJ420P] = {
> .name = "yuvj420p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV_JPEG,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 1,
> },
> [PIX_FMT_YUVJ422P] = {
> .name = "yuvj422p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV_JPEG,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUVJ444P] = {
> .name = "yuvj444p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV_JPEG,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_YUVJ440P] = {
> .name = "yuvj440p",
> .nb_channels = 3,
> .color_type = FF_COLOR_YUV_JPEG,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 1,
> },
>
> /* RGB formats */
> [PIX_FMT_RGB24] = {
> .name = "rgb24",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR24] = {
> .name = "bgr24",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB32] = {
> .name = "rgb32",
> .nb_channels = 4, .is_alpha = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB565] = {
> .name = "rgb565",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 5,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB555] = {
> .name = "rgb555",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 5,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
>
> /* gray / mono formats */
> [PIX_FMT_GRAY16BE] = {
> .name = "gray16be",
> .nb_channels = 1,
> .color_type = FF_COLOR_GRAY,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 16,
> },
> [PIX_FMT_GRAY16LE] = {
> .name = "gray16le",
> .nb_channels = 1,
> .color_type = FF_COLOR_GRAY,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 16,
> },
> [PIX_FMT_GRAY8] = {
> .name = "gray",
> .nb_channels = 1,
> .color_type = FF_COLOR_GRAY,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> },
> [PIX_FMT_MONOWHITE] = {
> .name = "monow",
> .nb_channels = 1,
> .color_type = FF_COLOR_GRAY,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 1,
> },
> [PIX_FMT_MONOBLACK] = {
> .name = "monob",
> .nb_channels = 1,
> .color_type = FF_COLOR_GRAY,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 1,
> },
>
> /* paletted formats */
> [PIX_FMT_PAL8] = {
> .name = "pal8",
> .nb_channels = 4, .is_alpha = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PALETTE,
> .depth = 8,
> },
> [PIX_FMT_XVMC_MPEG2_MC] = {
> .name = "xvmcmc",
> },
> [PIX_FMT_XVMC_MPEG2_IDCT] = {
> .name = "xvmcidct",
> },
> [PIX_FMT_UYYVYY411] = {
> .name = "uyyvyy411",
> .nb_channels = 1,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 2, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR32] = {
> .name = "bgr32",
> .nb_channels = 4, .is_alpha = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR565] = {
> .name = "bgr565",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 5,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR555] = {
> .name = "bgr555",
> .nb_channels = 3,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 5,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB8] = {
> .name = "rgb8",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB4] = {
> .name = "rgb4",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 4,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB4_BYTE] = {
> .name = "rgb4_byte",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR8] = {
> .name = "bgr8",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR4] = {
> .name = "bgr4",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 4,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_BGR4_BYTE] = {
> .name = "bgr4_byte",
> .nb_channels = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_NV12] = {
> .name = "nv12",
> .nb_channels = 2,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 1,
> },
> [PIX_FMT_NV21] = {
> .name = "nv12",
> .nb_channels = 2,
> .color_type = FF_COLOR_YUV,
> .pixel_type = FF_PIXEL_PLANAR,
> .depth = 8,
> .x_chroma_shift = 1, .y_chroma_shift = 1,
> },
>
> [PIX_FMT_BGR32_1] = {
> .name = "bgr32_1",
> .nb_channels = 4, .is_alpha = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> [PIX_FMT_RGB32_1] = {
> .name = "rgb32_1",
> .nb_channels = 4, .is_alpha = 1,
> .color_type = FF_COLOR_RGB,
> .pixel_type = FF_PIXEL_PACKED,
> .depth = 8,
> .x_chroma_shift = 0, .y_chroma_shift = 0,
> },
> };
>
> --
> Matteo Battaglio
> _______________________________________________
> libav-user mailing list
> [email protected]
> https://lists.mplayerhq.hu/mailman/listinfo/libav-user
>
You should be able to declare the array in a header file and populate it in
a cpp file.
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