mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-27 05:00:37 +00:00
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/hwcontext.h"
|
|
#include "libavutil/pixdesc.h"
|
|
|
|
#include "ffmpeg.h"
|
|
|
|
static void cuvid_uninit(AVCodecContext *avctx)
|
|
{
|
|
InputStream *ist = avctx->opaque;
|
|
av_buffer_unref(&ist->hw_frames_ctx);
|
|
}
|
|
|
|
int cuvid_init(AVCodecContext *avctx)
|
|
{
|
|
InputStream *ist = avctx->opaque;
|
|
AVHWFramesContext *frames_ctx;
|
|
int ret;
|
|
|
|
av_log(avctx, AV_LOG_VERBOSE, "Initializing cuvid hwaccel\n");
|
|
|
|
if (!hw_device_ctx) {
|
|
ret = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_CUDA,
|
|
ist->hwaccel_device, NULL, 0);
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error creating a CUDA device\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
av_buffer_unref(&ist->hw_frames_ctx);
|
|
ist->hw_frames_ctx = av_hwframe_ctx_alloc(hw_device_ctx);
|
|
if (!ist->hw_frames_ctx) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error creating a CUDA frames context\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
frames_ctx = (AVHWFramesContext*)ist->hw_frames_ctx->data;
|
|
|
|
frames_ctx->format = AV_PIX_FMT_CUDA;
|
|
frames_ctx->sw_format = avctx->sw_pix_fmt;
|
|
frames_ctx->width = avctx->width;
|
|
frames_ctx->height = avctx->height;
|
|
|
|
av_log(avctx, AV_LOG_DEBUG, "Initializing CUDA frames context: sw_format = %s, width = %d, height = %d\n",
|
|
av_get_pix_fmt_name(frames_ctx->sw_format), frames_ctx->width, frames_ctx->height);
|
|
|
|
ret = av_hwframe_ctx_init(ist->hw_frames_ctx);
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error initializing a CUDA frame pool\n");
|
|
return ret;
|
|
}
|
|
|
|
ist->hwaccel_uninit = cuvid_uninit;
|
|
|
|
return 0;
|
|
}
|