diff options
Diffstat (limited to 'libmpcodecs/vd_qt8bps.c')
| -rw-r--r-- | libmpcodecs/vd_qt8bps.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/libmpcodecs/vd_qt8bps.c b/libmpcodecs/vd_qt8bps.c deleted file mode 100644 index 1061d85d75..0000000000 --- a/libmpcodecs/vd_qt8bps.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * - * QuickTime 8BPS decoder for Mplayer - * (c) 2003 Roberto Togni - * - * Fourcc: 8BPS - * - * Supports 8bpp (paletted), 24bpp and 32bpp (4th plane ignored) - * - */ - -#include <stdio.h> -#include <stdlib.h> - -#include "config.h" -#include "bswap.h" - -#include "mp_msg.h" - -#include "vd_internal.h" - - -static vd_info_t info = { - "8BPS Video decoder", - "qt8bps", - "Roberto Togni", - "Roberto Togni", - "native codec" -}; - -LIBVD_EXTERN(qt8bps) - - -/* - * Decoder context - */ -typedef struct { - unsigned char planes; - unsigned char planemap[4]; - unsigned char *palette; -} qt8bps_context_t; - - -/* - * Internal function prototypes - */ - - -// to set/get/query special features/parameters -static int control(sh_video_t *sh,int cmd,void* arg,...) -{ - qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context - - if (cmd == VDCTRL_QUERY_FORMAT) - switch (hc->planes) { - case 1: - if (*((int*)arg) == IMGFMT_BGR8) - return CONTROL_TRUE; - else - return CONTROL_FALSE; - break; - case 3: - case 4: - if ((*((int*)arg) == IMGFMT_BGR24) || (*((int*)arg) == IMGFMT_BGR32)) - return CONTROL_TRUE; - else - return CONTROL_FALSE; - break; - default: - return CONTROL_FALSE; - } - - return CONTROL_UNKNOWN; -} - - -/* - * - * Init 8BPS decoder - * - */ -static int init(sh_video_t *sh) -{ - int vo_ret; // Video output init ret value - qt8bps_context_t *hc; // Decoder context - BITMAPINFOHEADER *bih = sh->bih; - - if ((hc = malloc(sizeof(qt8bps_context_t))) == NULL) { - mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Can't allocate memory for 8BPS decoder context.\n"); - return 0; - } - - sh->context = (void *)hc; - hc->palette = NULL; - - switch (bih->biBitCount) { - case 8: - hc->planes = 1; - hc->planemap[0] = 0; // 1st plane is palette indexes - if (bih->biSize > sizeof(BITMAPINFOHEADER)) { - hc->palette = (unsigned char *)malloc(256*4); - memcpy(hc->palette, (unsigned char*)bih + sizeof(BITMAPINFOHEADER), 256*4); - } - break; - case 24: - hc->planes = 3; - hc->planemap[0] = 2; // 1st plane is red - hc->planemap[1] = 1; // 2nd plane is green - hc->planemap[2] = 0; // 3rd plane is blue - break; - case 32: - hc->planes = 4; - hc->planemap[0] = 2; // 1st plane is red - hc->planemap[1] = 1; // 2nd plane is green - hc->planemap[2] = 0; // 3rd plane is blue - hc->planemap[3] = 3; // 4th plane is alpha??? - mp_msg(MSGT_DECVIDEO, MSGL_WARN, "[8BPS] Ignoring 4th (alpha?) plane.\n"); - break; - default: - mp_msg(MSGT_DECVIDEO, MSGL_ERR, "[8BPS] Unsupported color depth: %u.\n", bih->biBitCount); - return 0; - } - - /* - * Initialize video output device - */ - vo_ret = mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR24); - - return vo_ret; -} - - - - -/* - * - * Uninit 8BPS decoder - * - */ -static void uninit(sh_video_t *sh) -{ - qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context - - if (sh->context) { - if (hc->palette) - free (hc->palette); - free(sh->context); - } -} - - - -/* - * - * Decode a frame - * - */ -static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags) -{ - mp_image_t* mpi; - unsigned char *encoded = (unsigned char *)data; - qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context - unsigned char *outptr, *pixptr; - unsigned int height = sh->disp_h; // Real image height - unsigned int dlen, p, row; - unsigned char *lp, *dp; - unsigned char count; - unsigned int px_inc; - unsigned int planes = hc->planes; - unsigned char *planemap = hc->planemap; - - - // Skipped frame - if(len <= 0) - return NULL; - - /* Get output image buffer */ - mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE, sh->disp_w, sh->disp_h); - if (!mpi) { - mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Can't allocate mpi image for 8BPS codec.\n"); - return NULL; - } - - outptr = mpi->planes[0]; // Output image pointer - px_inc = mpi->bpp/8; - - /* Set data pointer after line lengths */ - dp = encoded + hc->planes*(height << 1); - - /* Ignore alpha plane, don't know what to do with it */ - if (planes == 4) - planes--; - - for (p = 0; p < planes; p++) { - /* Lines length pointer for this plane */ - lp = encoded + p*(height << 1); - - /* Decode a plane */ - for(row = 0; row < height; row++) { - pixptr = outptr + row * mpi->stride[0] + planemap[p]; - dlen = be2me_16(*(unsigned short *)(lp+row*2)); - /* Decode a row of this plane */ - while(dlen > 0) { - if ((count = *dp++) <= 127) { - count++; - dlen -= count + 1; - while(count--) { - *pixptr = *dp++; - pixptr += px_inc; - } - } else { - count = 257 - count; - while(count--) { - *pixptr = *dp; - pixptr += px_inc; - } - dp++; - dlen -= 2; - } - } - } - } - - if (hc->palette) - mpi->planes[1] = hc->palette; - - return mpi; -} |