static int init_image(TiffContext *s, ThreadFrame *frame) { int ret; switch (s->planar * 1000 + s->bpp * 10 + s->bppcount) { case 11: if (!s->palette_is_set) { s->avctx->pix_fmt = AV_PIX_FMT_MONOBLACK; break; } case 21: case 41: case 81: s->avctx->pix_fmt = s->palette_is_set ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_GRAY8; break; case 243: if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) { if (s->subsampling[0] == 1 && s->subsampling[1] == 1) { s->avctx->pix_fmt = AV_PIX_FMT_YUV444P; } else if (s->subsampling[0] == 2 && s->subsampling[1] == 1) { s->avctx->pix_fmt = AV_PIX_FMT_YUV422P; } else if (s->subsampling[0] == 4 && s->subsampling[1] == 1) { s->avctx->pix_fmt = AV_PIX_FMT_YUV411P; } else if (s->subsampling[0] == 1 && s->subsampling[1] == 2) { s->avctx->pix_fmt = AV_PIX_FMT_YUV440P; } else if (s->subsampling[0] == 2 && s->subsampling[1] == 2) { s->avctx->pix_fmt = AV_PIX_FMT_YUV420P; } else if (s->subsampling[0] == 4 && s->subsampling[1] == 4) { s->avctx->pix_fmt = AV_PIX_FMT_YUV410P; } else { av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr subsampling\n"); return AVERROR_PATCHWELCOME; } } else s->avctx->pix_fmt = AV_PIX_FMT_RGB24; break; case 161: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GRAY16LE : AV_PIX_FMT_GRAY16BE; break; case 162: s->avctx->pix_fmt = AV_PIX_FMT_YA8; break; case 322: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_YA16LE : AV_PIX_FMT_YA16BE; break; case 324: s->avctx->pix_fmt = AV_PIX_FMT_RGBA; break; case 483: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGB48LE : AV_PIX_FMT_RGB48BE; break; case 644: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_RGBA64LE : AV_PIX_FMT_RGBA64BE; break; case 1243: s->avctx->pix_fmt = AV_PIX_FMT_GBRP; break; case 1324: s->avctx->pix_fmt = AV_PIX_FMT_GBRAP; break; case 1483: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRP16LE : AV_PIX_FMT_GBRP16BE; break; case 1644: s->avctx->pix_fmt = s->le ? AV_PIX_FMT_GBRAP16LE : AV_PIX_FMT_GBRAP16BE; break; default: av_log(s->avctx, AV_LOG_ERROR, "This format is not supported (bpp=%d, bppcount=%d)\n", s->bpp, s->bppcount); return AVERROR_INVALIDDATA; } if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) { const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt); if((desc->flags & AV_PIX_FMT_FLAG_RGB) || desc->nb_components < 3) { av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n"); return AVERROR_INVALIDDATA; } } if (s->width != s->avctx->width || s->height != s->avctx->height) { ret = ff_set_dimensions(s->avctx, s->width, s->height); if (ret < 0) return ret; } if ((ret = ff_thread_get_buffer(s->avctx, frame, 0)) < 0) return ret; if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8) { memcpy(frame->f->data[1], s->palette, sizeof(s->palette)); } return 0; }