Merge commit 'c95169f0ec68bdeeabc5fde8aa4076f406242524'

* commit 'c95169f0ec68bdeeabc5fde8aa4076f406242524':
  build: Move cli tool sources to a separate subdirectory

Merged-by: James Almer <jamrial@gmail.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/fftools/ffmpeg_cuvid.c b/fftools/ffmpeg_cuvid.c
new file mode 100644
index 0000000000..3ff3b40f17
--- /dev/null
+++ b/fftools/ffmpeg_cuvid.c
@@ -0,0 +1,73 @@
+/*
+ * 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;
+}