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-rw-r--r--video/decode/videotoolbox.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/video/decode/videotoolbox.c b/video/decode/videotoolbox.c
new file mode 100644
index 0000000000..c4f7c05f05
--- /dev/null
+++ b/video/decode/videotoolbox.c
@@ -0,0 +1,115 @@
+/*
+ * This file is part of mpv.
+ *
+ * Copyright (c) 2015 Sebastien Zwickert
+ *
+ * mpv is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpv is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with mpv. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libavcodec/version.h>
+#include <libavcodec/videotoolbox.h>
+
+#include "common/av_common.h"
+#include "common/msg.h"
+#include "video/mp_image.h"
+#include "video/decode/lavc.h"
+#include "config.h"
+
+
+static int probe(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
+ const char *decoder)
+{
+ hwdec_request_api(info, "videotoolbox");
+ if (!info || !info->hwctx)
+ return HWDEC_ERR_NO_CTX;
+ switch (mp_codec_to_av_codec_id(decoder)) {
+ case AV_CODEC_ID_H264:
+ case AV_CODEC_ID_H263:
+ case AV_CODEC_ID_MPEG1VIDEO:
+ case AV_CODEC_ID_MPEG2VIDEO:
+ case AV_CODEC_ID_MPEG4:
+ break;
+ default:
+ return HWDEC_ERR_NO_CODEC;
+ }
+ return 0;
+}
+
+static int init(struct lavc_ctx *ctx)
+{
+ return 0;
+}
+
+struct videotoolbox_error {
+ int code;
+ char *reason;
+};
+
+static const struct videotoolbox_error videotoolbox_errors[] = {
+ { AVERROR(ENOSYS),
+ "Hardware doesn't support accelerated decoding for this stream"
+ " or Videotoolbox decoder is not available at the moment (another"
+ " application is using it)."
+ },
+ { AVERROR(EINVAL),
+ "Invalid configuration provided to VTDecompressionSessionCreate" },
+ { AVERROR_INVALIDDATA,
+ "Generic error returned by the decoder layer. The cause can be Videotoolbox"
+ " found errors in the bitstream." },
+ { 0, NULL },
+};
+
+static void print_videotoolbox_error(struct mp_log *log, int lev, char *message,
+ int error_code)
+{
+ for (int n = 0; videotoolbox_errors[n].code < 0; n++)
+ if (videotoolbox_errors[n].code == error_code) {
+ mp_msg(log, lev, "%s: %s (%d)\n",
+ message, videotoolbox_errors[n].reason, error_code);
+ return;
+ }
+
+ mp_msg(log, lev, "%s: %d\n", message, error_code);
+}
+
+static int init_decoder(struct lavc_ctx *ctx, int fmt, int w, int h)
+{
+ av_videotoolbox_default_free(ctx->avctx);
+
+ AVVideotoolboxContext *vtctx = av_videotoolbox_alloc_context();
+ vtctx->cv_pix_fmt_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
+ int err = av_videotoolbox_default_init2(ctx->avctx, vtctx);
+
+ if (err < 0) {
+ print_videotoolbox_error(ctx->log, MSGL_ERR, "failed to init videotoolbox decoder", err);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void uninit(struct lavc_ctx *ctx)
+{
+ if (ctx->avctx)
+ av_videotoolbox_default_free(ctx->avctx);
+}
+
+const struct vd_lavc_hwdec mp_vd_lavc_videotoolbox = {
+ .type = HWDEC_VIDEOTOOLBOX,
+ .image_format = IMGFMT_VIDEOTOOLBOX,
+ .probe = probe,
+ .init = init,
+ .uninit = uninit,
+ .init_decoder = init_decoder,
+};