mirror of https://github.com/mpv-player/mpv
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* This file is part of mpv.
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*
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* Copyright (c) 2015 Sebastien Zwickert
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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/videotoolbox.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, "videotoolbox");
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if (!info || !info->hwctx || info->hwctx->type != HWDEC_VIDEOTOOLBOX)
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return HWDEC_ERR_NO_CTX;
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switch (mp_codec_to_av_codec_id(decoder)) {
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case AV_CODEC_ID_H264:
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case AV_CODEC_ID_H263:
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case AV_CODEC_ID_MPEG1VIDEO:
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case AV_CODEC_ID_MPEG2VIDEO:
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case AV_CODEC_ID_MPEG4:
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break;
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default:
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return HWDEC_ERR_NO_CODEC;
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}
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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 videotoolbox_error {
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int code;
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char *reason;
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};
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static const struct videotoolbox_error videotoolbox_errors[] = {
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{ AVERROR(ENOSYS),
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"Hardware doesn't support accelerated decoding for this stream"
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" or Videotoolbox decoder is not available at the moment (another"
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" application is using it)."
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},
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{ AVERROR(EINVAL),
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"Invalid configuration provided to VTDecompressionSessionCreate" },
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{ AVERROR_INVALIDDATA,
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"Generic error returned by the decoder layer. The cause can be Videotoolbox"
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" found errors in the bitstream." },
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{ 0, NULL },
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};
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static void print_videotoolbox_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; videotoolbox_errors[n].code < 0; n++)
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if (videotoolbox_errors[n].code == error_code) {
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mp_msg(log, lev, "%s: %s (%d)\n",
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message, videotoolbox_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 w, int h)
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{
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av_videotoolbox_default_free(ctx->avctx);
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AVVideotoolboxContext *vtctx = av_videotoolbox_alloc_context();
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vtctx->cv_pix_fmt_type = (uintptr_t)ctx->hwdec_info->hwctx->priv;
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int err = av_videotoolbox_default_init2(ctx->avctx, vtctx);
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if (err < 0) {
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print_videotoolbox_error(ctx->log, MSGL_ERR, "failed to init videotoolbox 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_videotoolbox_default_free(ctx->avctx);
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}
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const struct vd_lavc_hwdec mp_vd_lavc_videotoolbox = {
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.type = HWDEC_VIDEOTOOLBOX,
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.image_format = IMGFMT_VIDEOTOOLBOX,
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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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