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mpv/video/cuda.c

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video: cuda: add explicit context creation for copy hwaccels In the distant past, the cuviddec backed copy hwaccel could be configured directly using lavc options. However, since that time, we gained support for automatic hw ctx creation which ended up bypassing the lavc options. Rather than trying to find a way to pass those options again, a better idea is to make the 'cuda-decode-device' option, used by the interop hwaccels, work for the copy hwaccels too. And that's pretty simple: we have to add a create function that checks the option and passes it on to ffmpeg. Note that this does require a slight re-jig to the configuration flags, as we now have a scenario where we want to build with support for the cuda copy hwaccels but not the interop ones. So we need a distinct configuration flag for that combination. Fixes #7295.
2019-12-28 20:58:39 +00:00
/*
* This file is part of mpv.
*
* mpv 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.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hwdec.h"
#include "options/m_config.h"
cuda: move --cuda-device to cuda_opts group Also change a ta_free to talloc_free for consistency reasons.
2023-09-19 23:12:42 +00:00
#include "options/options.h"
video: cuda: add explicit context creation for copy hwaccels In the distant past, the cuviddec backed copy hwaccel could be configured directly using lavc options. However, since that time, we gained support for automatic hw ctx creation which ended up bypassing the lavc options. Rather than trying to find a way to pass those options again, a better idea is to make the 'cuda-decode-device' option, used by the interop hwaccels, work for the copy hwaccels too. And that's pretty simple: we have to add a create function that checks the option and passes it on to ffmpeg. Note that this does require a slight re-jig to the configuration flags, as we now have a scenario where we want to build with support for the cuda copy hwaccels but not the interop ones. So we need a distinct configuration flag for that combination. Fixes #7295.
2019-12-28 20:58:39 +00:00
#include <libavutil/hwcontext.h>
static struct AVBufferRef *cuda_create_standalone(struct mpv_global *global,
struct mp_log *log, struct hwcontext_create_dev_params *params)
{
cuda: move --cuda-device to cuda_opts group Also change a ta_free to talloc_free for consistency reasons.
2023-09-19 23:12:42 +00:00
struct cuda_opts *opts = mp_get_config_group(NULL, global, &cuda_conf);
video: cuda: add explicit context creation for copy hwaccels In the distant past, the cuviddec backed copy hwaccel could be configured directly using lavc options. However, since that time, we gained support for automatic hw ctx creation which ended up bypassing the lavc options. Rather than trying to find a way to pass those options again, a better idea is to make the 'cuda-decode-device' option, used by the interop hwaccels, work for the copy hwaccels too. And that's pretty simple: we have to add a create function that checks the option and passes it on to ffmpeg. Note that this does require a slight re-jig to the configuration flags, as we now have a scenario where we want to build with support for the cuda copy hwaccels but not the interop ones. So we need a distinct configuration flag for that combination. Fixes #7295.
2019-12-28 20:58:39 +00:00
char *decode_dev = NULL;
cuda: move --cuda-device to cuda_opts group Also change a ta_free to talloc_free for consistency reasons.
2023-09-19 23:12:42 +00:00
if (opts->cuda_device != -1)
decode_dev = talloc_asprintf(NULL, "%d", opts->cuda_device);
video: cuda: add explicit context creation for copy hwaccels In the distant past, the cuviddec backed copy hwaccel could be configured directly using lavc options. However, since that time, we gained support for automatic hw ctx creation which ended up bypassing the lavc options. Rather than trying to find a way to pass those options again, a better idea is to make the 'cuda-decode-device' option, used by the interop hwaccels, work for the copy hwaccels too. And that's pretty simple: we have to add a create function that checks the option and passes it on to ffmpeg. Note that this does require a slight re-jig to the configuration flags, as we now have a scenario where we want to build with support for the cuda copy hwaccels but not the interop ones. So we need a distinct configuration flag for that combination. Fixes #7295.
2019-12-28 20:58:39 +00:00
AVBufferRef* ref = NULL;
av_hwdevice_ctx_create(&ref, AV_HWDEVICE_TYPE_CUDA, decode_dev, NULL, 0);
cuda: move --cuda-device to cuda_opts group Also change a ta_free to talloc_free for consistency reasons.
2023-09-19 23:12:42 +00:00
talloc_free(decode_dev);
talloc_free(opts);
video: cuda: add explicit context creation for copy hwaccels In the distant past, the cuviddec backed copy hwaccel could be configured directly using lavc options. However, since that time, we gained support for automatic hw ctx creation which ended up bypassing the lavc options. Rather than trying to find a way to pass those options again, a better idea is to make the 'cuda-decode-device' option, used by the interop hwaccels, work for the copy hwaccels too. And that's pretty simple: we have to add a create function that checks the option and passes it on to ffmpeg. Note that this does require a slight re-jig to the configuration flags, as we now have a scenario where we want to build with support for the cuda copy hwaccels but not the interop ones. So we need a distinct configuration flag for that combination. Fixes #7295.
2019-12-28 20:58:39 +00:00
return ref;
}
const struct hwcontext_fns hwcontext_fns_cuda = {
.av_hwdevice_type = AV_HWDEVICE_TYPE_CUDA,
.create_dev = cuda_create_standalone,
};