mirror of https://github.com/mpv-player/mpv
109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*
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* This file is part of mpv.
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*
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* Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libavcodec/version.h>
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#include <libavcodec/vda.h>
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#include "common/av_common.h"
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#include "common/msg.h"
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#include "video/mp_image.h"
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#include "video/decode/lavc.h"
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#include "config.h"
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static int probe(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
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const char *decoder)
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{
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hwdec_request_api(info, "vda");
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if (!info || !info->hwctx)
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return HWDEC_ERR_NO_CTX;
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if (mp_codec_to_av_codec_id(decoder) != AV_CODEC_ID_H264)
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return HWDEC_ERR_NO_CODEC;
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return 0;
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}
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static int init(struct lavc_ctx *ctx)
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{
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return 0;
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}
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struct vda_error {
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int code;
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char *reason;
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};
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static const struct vda_error vda_errors[] = {
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{ AVERROR(ENOSYS),
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"Hardware doesn't support accelerated decoding for this stream" },
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{ AVERROR(EINVAL),
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"Invalid configuration provided to VDADecoderCreate" },
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{ AVERROR_INVALIDDATA,
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"Generic error returned by the decoder layer. The cause can range from"
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" VDADecoder finding errors in the bitstream to another application"
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" using VDA at the moment. Only one application can use VDA at a"
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" givent time." },
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{ 0, NULL },
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};
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static void print_vda_error(struct mp_log *log, int lev, char *message,
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int error_code)
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{
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for (int n = 0; vda_errors[n].code < 0; n++)
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if (vda_errors[n].code == error_code) {
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mp_msg(log, lev, "%s: %s (%d)\n",
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message, vda_errors[n].reason, error_code);
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return;
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}
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mp_msg(log, lev, "%s: %d\n", message, error_code);
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}
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static int init_decoder(struct lavc_ctx *ctx, int fmt, int w, int h)
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{
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av_vda_default_free(ctx->avctx);
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#if HAVE_VDA_DEFAULT_INIT2
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AVVDAContext *vdactx = av_vda_alloc_context();
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vdactx->cv_pix_fmt_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
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int err = av_vda_default_init2(ctx->avctx, vdactx);
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#else
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int err = av_vda_default_init(ctx->avctx);
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#endif
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if (err < 0) {
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print_vda_error(ctx->log, MSGL_ERR, "failed to init VDA decoder", err);
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return -1;
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}
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return 0;
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}
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static void uninit(struct lavc_ctx *ctx)
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{
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if (ctx->avctx)
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av_vda_default_free(ctx->avctx);
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}
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const struct vd_lavc_hwdec mp_vd_lavc_vda = {
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.type = HWDEC_VDA,
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.image_format = IMGFMT_VDA,
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.probe = probe,
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.init = init,
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.uninit = uninit,
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.init_decoder = init_decoder,
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};
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