diff -r 4c282e7dd6d3 -r 5505e8908944 gst_plugins_base/gst/ffmpegcolorspace/avcodec.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/gst/ffmpegcolorspace/avcodec.h Fri Jan 22 09:59:59 2010 +0200 @@ -0,0 +1,359 @@ +#ifndef AVCODEC_H +#define AVCODEC_H + +/** + * @file avcodec.h + * external api header. + */ + + +#ifdef __cplusplus +extern "C" { +#endif + +//#include "_stdint.h" + +#include /* size_t */ + +#define FFMPEG_VERSION_INT 0x000409 +#define FFMPEG_VERSION "0.4.9-pre1" +#define LIBAVCODEC_BUILD 4728 + +#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT +#define LIBAVCODEC_VERSION FFMPEG_VERSION + +#define AV_STRINGIFY(s) AV_TOSTRING(s) +#define AV_TOSTRING(s) #s +#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD) + +enum CodecType { + CODEC_TYPE_UNKNOWN = -1, + CODEC_TYPE_VIDEO, + CODEC_TYPE_AUDIO, + CODEC_TYPE_DATA, +}; + +/* + * Pixel format. Notes: + * + * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA + * color is put together as: + * (A << 24) | (R << 16) | (G << 8) | B + * This is stored as BGRA on little endian CPU architectures and ARGB on + * big endian CPUs. + * + * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized + * image data is stored in AVFrame.data[0]. The palette is transported in + * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is + * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is + * also endian-specific). Note also that the individual RGB palette + * components stored in AVFrame.data[1] should be in the range 0..255. + * This is important as many custom PAL8 video codecs that were designed + * to run on the IBM VGA graphics adapter use 6-bit palette components. + */ +enum PixelFormat { + PIX_FMT_YUV420P, ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples) (I420) + PIX_FMT_YVU420P, ///< Planar YUV 4:2:0 (1 Cb & Cr sample per 2x2 Y samples) (YV12) + PIX_FMT_YUV422, ///< Packed pixel, Y0 Cb Y1 Cr + PIX_FMT_RGB24, ///< Packed pixel, 3 bytes per pixel, RGBRGB... + PIX_FMT_BGR24, ///< Packed pixel, 3 bytes per pixel, BGRBGR... + PIX_FMT_YUV422P, ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples) + PIX_FMT_YUV444P, ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples) + PIX_FMT_RGBA32, ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness + PIX_FMT_BGRA32, ///< Packed pixel, 4 bytes per pixel, ARGBARGB... + PIX_FMT_ARGB32, ///< Packed pixel, 4 bytes per pixel, ABGRABGR..., stored in cpu endianness + PIX_FMT_ABGR32, ///< Packed pixel, 4 bytes per pixel, RGBARGBA... + PIX_FMT_RGB32, ///< Packed pixel, 4 bytes per pixel, BGRxBGRx..., stored in cpu endianness + PIX_FMT_xRGB32, ///< Packed pixel, 4 bytes per pixel, xBGRxBGR..., stored in cpu endianness + PIX_FMT_BGR32, ///< Packed pixel, 4 bytes per pixel, xRGBxRGB... + PIX_FMT_BGRx32, ///< Packed pixel, 4 bytes per pixel, RGBxRGBx... + PIX_FMT_YUV410P, ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples) + PIX_FMT_YVU410P, ///< Planar YVU 4:1:0 (1 Cr & Cb sample per 4x4 Y samples) + PIX_FMT_YUV411P, ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples) + PIX_FMT_RGB565, ///< always stored in cpu endianness + PIX_FMT_RGB555, ///< always stored in cpu endianness, most significant bit to 1 + PIX_FMT_GRAY8, + PIX_FMT_MONOWHITE, ///< 0 is white + PIX_FMT_MONOBLACK, ///< 0 is black + PIX_FMT_PAL8, ///< 8 bit with RGBA palette + PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0 full scale (jpeg) + PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2 full scale (jpeg) + PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4 full scale (jpeg) + PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h) + PIX_FMT_XVMC_MPEG2_IDCT, + PIX_FMT_UYVY422, ///< Packed pixel, Cb Y0 Cr Y1 + PIX_FMT_UYVY411, ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3 + + PIX_FMT_AYUV4444, ///< Packed pixel, A0 Y0 Cb Cr + PIX_FMT_NB +}; + +/* currently unused, may be used if 24/32 bits samples ever supported */ +enum SampleFormat { + SAMPLE_FMT_S16 = 0, ///< signed 16 bits +}; + +/* thomas: extracted from imgconvert.c since it's also used in + * gstffmpegcodecmap.c */ + +/* start of extract */ + +#define FF_COLOR_RGB 0 /* RGB color space */ +#define FF_COLOR_GRAY 1 /* gray color space */ +#define FF_COLOR_YUV 2 /* YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */ +#define FF_COLOR_YUV_JPEG 3 /* YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */ + +#define FF_PIXEL_PLANAR 0 /* each channel has one component in AVPicture */ +#define FF_PIXEL_PACKED 1 /* only one components containing all the channels */ +#define FF_PIXEL_PALETTE 2 /* one components containing indexes for a palette */ + +typedef struct PixFmtInfo +{ + enum PixelFormat format; + 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; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +PixFmtInfo * get_pix_fmt_info (enum PixelFormat format); +/* end of extract */ + +/** + * main external api structure. + */ +typedef struct AVCodecContext { + /* video only */ + /** + * frames per sec multiplied by frame_rate_base. + * for variable fps this is the precission, so if the timestamps + * can be specified in msec precssion then this is 1000*frame_rate_base + * - encoding: MUST be set by user + * - decoding: set by lavc. 0 or the frame_rate if available + */ + int frame_rate; + + /** + * frame_rate_base. + * for variable fps this is 1 + * - encoding: set by user. + * - decoding: set by lavc. + */ + + int frame_rate_base; + /** + * picture width / height. + * - encoding: MUST be set by user. + * - decoding: set by lavc. + * Note, for compatibility its possible to set this instead of + * coded_width/height before decoding + */ + int width, height; + + /** + * pixel format, see PIX_FMT_xxx. + * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt + * conversion is in order. This only works for + * codecs with one supported pix_fmt, we should + * do something for a generic case as well. + * - decoding: set by lavc. + */ + enum PixelFormat pix_fmt; + + /* audio only */ + int sample_rate; ///< samples per sec + int channels; + int sample_fmt; ///< sample format, currenly unused + + /** + * Palette control structure + * - encoding: ??? (no palette-enabled encoder yet) + * - decoding: set by user. + */ + struct AVPaletteControl *palctrl; +} AVCodecContext; + +/** + * four components are given, that's all. + * the last component is alpha + */ +typedef struct AVPicture { + uint8_t *data[4]; + int linesize[4]; ///< number of bytes per line +} AVPicture; + +/** + * AVPaletteControl + * This structure defines a method for communicating palette changes + * between and demuxer and a decoder. + */ +#define AVPALETTE_SIZE 1024 +#define AVPALETTE_COUNT 256 +typedef struct AVPaletteControl { + + /* demuxer sets this to 1 to indicate the palette has changed; + * decoder resets to 0 */ + int palette_changed; + + /* 4-byte ARGB palette entries, stored in native byte order; note that + * the individual palette components should be on a 8-bit scale; if + * the palette data comes from a IBM VGA native format, the component + * data is probably 6 bits in size and needs to be scaled */ + unsigned int palette[AVPALETTE_COUNT]; + +} AVPaletteControl; +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +int avpicture_get_size(int pix_fmt, int width, int height); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +const char *avcodec_get_pix_fmt_name(int pix_fmt); +void avcodec_set_dimensions(AVCodecContext *s, int width, int height); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +enum PixelFormat avcodec_get_pix_fmt(const char* name); + +#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */ +#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */ +#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */ +#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */ +#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */ +#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt, + int has_alpha); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt, + int has_alpha, int *loss_ptr); + +#define FF_ALPHA_TRANSP 0x0001 /* image has some totally transparent pixels */ +#define FF_ALPHA_SEMI_TRANSP 0x0002 /* image has some transparent pixels */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +int img_get_alpha_info(const AVPicture *src, + int pix_fmt, int width, int height); + +/* convert among pixel formats */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +int img_convert(AVPicture *dst, int dst_pix_fmt, + const AVPicture *src, int pix_fmt, + int width, int height); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void avcodec_init(void); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + + +void avcodec_get_context_defaults(AVCodecContext *s); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +AVCodecContext *avcodec_alloc_context(void); + +/* memory */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void *av_malloc(unsigned int size); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void *av_mallocz(unsigned int size); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void *av_realloc(void *ptr, unsigned int size); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void av_free(void *ptr); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +char *av_strdup(const char *s); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void av_freep(void *ptr); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size); +/* for static data only */ +/* call av_free_static to release all staticaly allocated tables */ +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void av_free_static(void); +#ifdef __SYMBIAN32__ +IMPORT_C +#endif + +void *av_mallocz_static(unsigned int size); + +/* endian macros */ +#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32) +#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1]) +#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \ + (((uint8_t*)(x))[1] << 16) | \ + (((uint8_t*)(x))[2] << 8) | \ + ((uint8_t*)(x))[3]) +#define LE_16(x) ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0]) +#define LE_32(x) ((((uint8_t*)(x))[3] << 24) | \ + (((uint8_t*)(x))[2] << 16) | \ + (((uint8_t*)(x))[1] << 8) | \ + ((uint8_t*)(x))[0]) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* AVCODEC_H */