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Rename ffmpeg-4.2-fit to ffmpeg-4-fit
This commit is contained in:
parent
b19074721c
commit
27712fdda7
720 changed files with 14 additions and 14 deletions
879
trunk/3rdparty/ffmpeg-4-fit/libavutil/hwcontext.c
vendored
Normal file
879
trunk/3rdparty/ffmpeg-4-fit/libavutil/hwcontext.c
vendored
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@ -0,0 +1,879 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "buffer.h"
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#include "common.h"
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#include "hwcontext.h"
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#include "hwcontext_internal.h"
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#include "imgutils.h"
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#include "log.h"
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#include "mem.h"
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#include "pixdesc.h"
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#include "pixfmt.h"
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static const HWContextType * const hw_table[] = {
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#if CONFIG_CUDA
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&ff_hwcontext_type_cuda,
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#endif
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#if CONFIG_D3D11VA
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&ff_hwcontext_type_d3d11va,
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#endif
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#if CONFIG_LIBDRM
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&ff_hwcontext_type_drm,
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#endif
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#if CONFIG_DXVA2
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&ff_hwcontext_type_dxva2,
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#endif
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#if CONFIG_OPENCL
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&ff_hwcontext_type_opencl,
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#endif
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#if CONFIG_QSV
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&ff_hwcontext_type_qsv,
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#endif
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#if CONFIG_VAAPI
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&ff_hwcontext_type_vaapi,
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#endif
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#if CONFIG_VDPAU
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&ff_hwcontext_type_vdpau,
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#endif
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#if CONFIG_VIDEOTOOLBOX
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&ff_hwcontext_type_videotoolbox,
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#endif
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#if CONFIG_MEDIACODEC
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&ff_hwcontext_type_mediacodec,
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#endif
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NULL,
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};
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static const char *const hw_type_names[] = {
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[AV_HWDEVICE_TYPE_CUDA] = "cuda",
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[AV_HWDEVICE_TYPE_DRM] = "drm",
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[AV_HWDEVICE_TYPE_DXVA2] = "dxva2",
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[AV_HWDEVICE_TYPE_D3D11VA] = "d3d11va",
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[AV_HWDEVICE_TYPE_OPENCL] = "opencl",
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[AV_HWDEVICE_TYPE_QSV] = "qsv",
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[AV_HWDEVICE_TYPE_VAAPI] = "vaapi",
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[AV_HWDEVICE_TYPE_VDPAU] = "vdpau",
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[AV_HWDEVICE_TYPE_VIDEOTOOLBOX] = "videotoolbox",
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[AV_HWDEVICE_TYPE_MEDIACODEC] = "mediacodec",
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};
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enum AVHWDeviceType av_hwdevice_find_type_by_name(const char *name)
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{
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int type;
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for (type = 0; type < FF_ARRAY_ELEMS(hw_type_names); type++) {
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if (hw_type_names[type] && !strcmp(hw_type_names[type], name))
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return type;
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}
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return AV_HWDEVICE_TYPE_NONE;
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}
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const char *av_hwdevice_get_type_name(enum AVHWDeviceType type)
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{
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if (type > AV_HWDEVICE_TYPE_NONE &&
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type < FF_ARRAY_ELEMS(hw_type_names))
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return hw_type_names[type];
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else
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return NULL;
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}
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enum AVHWDeviceType av_hwdevice_iterate_types(enum AVHWDeviceType prev)
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{
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enum AVHWDeviceType next;
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int i, set = 0;
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for (i = 0; hw_table[i]; i++) {
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if (prev != AV_HWDEVICE_TYPE_NONE && hw_table[i]->type <= prev)
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continue;
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if (!set || hw_table[i]->type < next) {
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next = hw_table[i]->type;
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set = 1;
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}
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}
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return set ? next : AV_HWDEVICE_TYPE_NONE;
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}
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static const AVClass hwdevice_ctx_class = {
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.class_name = "AVHWDeviceContext",
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.item_name = av_default_item_name,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static void hwdevice_ctx_free(void *opaque, uint8_t *data)
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{
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AVHWDeviceContext *ctx = (AVHWDeviceContext*)data;
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/* uninit might still want access the hw context and the user
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* free() callback might destroy it, so uninit has to be called first */
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if (ctx->internal->hw_type->device_uninit)
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ctx->internal->hw_type->device_uninit(ctx);
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if (ctx->free)
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ctx->free(ctx);
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av_buffer_unref(&ctx->internal->source_device);
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av_freep(&ctx->hwctx);
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av_freep(&ctx->internal->priv);
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av_freep(&ctx->internal);
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av_freep(&ctx);
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}
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AVBufferRef *av_hwdevice_ctx_alloc(enum AVHWDeviceType type)
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{
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AVHWDeviceContext *ctx;
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AVBufferRef *buf;
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const HWContextType *hw_type = NULL;
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int i;
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for (i = 0; hw_table[i]; i++) {
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if (hw_table[i]->type == type) {
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hw_type = hw_table[i];
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break;
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}
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}
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if (!hw_type)
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return NULL;
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ctx = av_mallocz(sizeof(*ctx));
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if (!ctx)
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return NULL;
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ctx->internal = av_mallocz(sizeof(*ctx->internal));
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if (!ctx->internal)
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goto fail;
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if (hw_type->device_priv_size) {
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ctx->internal->priv = av_mallocz(hw_type->device_priv_size);
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if (!ctx->internal->priv)
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goto fail;
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}
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if (hw_type->device_hwctx_size) {
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ctx->hwctx = av_mallocz(hw_type->device_hwctx_size);
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if (!ctx->hwctx)
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goto fail;
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}
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buf = av_buffer_create((uint8_t*)ctx, sizeof(*ctx),
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hwdevice_ctx_free, NULL,
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AV_BUFFER_FLAG_READONLY);
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if (!buf)
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goto fail;
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ctx->type = type;
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ctx->av_class = &hwdevice_ctx_class;
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ctx->internal->hw_type = hw_type;
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return buf;
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fail:
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if (ctx->internal)
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av_freep(&ctx->internal->priv);
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av_freep(&ctx->internal);
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av_freep(&ctx->hwctx);
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av_freep(&ctx);
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return NULL;
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}
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int av_hwdevice_ctx_init(AVBufferRef *ref)
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{
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AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
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int ret;
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if (ctx->internal->hw_type->device_init) {
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ret = ctx->internal->hw_type->device_init(ctx);
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if (ret < 0)
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goto fail;
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}
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return 0;
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fail:
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if (ctx->internal->hw_type->device_uninit)
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ctx->internal->hw_type->device_uninit(ctx);
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return ret;
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}
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static const AVClass hwframe_ctx_class = {
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.class_name = "AVHWFramesContext",
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.item_name = av_default_item_name,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static void hwframe_ctx_free(void *opaque, uint8_t *data)
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{
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AVHWFramesContext *ctx = (AVHWFramesContext*)data;
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if (ctx->internal->pool_internal)
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av_buffer_pool_uninit(&ctx->internal->pool_internal);
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if (ctx->internal->hw_type->frames_uninit)
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ctx->internal->hw_type->frames_uninit(ctx);
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if (ctx->free)
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ctx->free(ctx);
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av_buffer_unref(&ctx->internal->source_frames);
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av_buffer_unref(&ctx->device_ref);
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av_freep(&ctx->hwctx);
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av_freep(&ctx->internal->priv);
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av_freep(&ctx->internal);
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av_freep(&ctx);
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}
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AVBufferRef *av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
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{
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AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)device_ref_in->data;
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const HWContextType *hw_type = device_ctx->internal->hw_type;
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AVHWFramesContext *ctx;
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AVBufferRef *buf, *device_ref = NULL;
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ctx = av_mallocz(sizeof(*ctx));
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if (!ctx)
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return NULL;
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ctx->internal = av_mallocz(sizeof(*ctx->internal));
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if (!ctx->internal)
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goto fail;
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if (hw_type->frames_priv_size) {
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ctx->internal->priv = av_mallocz(hw_type->frames_priv_size);
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if (!ctx->internal->priv)
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goto fail;
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}
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if (hw_type->frames_hwctx_size) {
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ctx->hwctx = av_mallocz(hw_type->frames_hwctx_size);
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if (!ctx->hwctx)
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goto fail;
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}
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device_ref = av_buffer_ref(device_ref_in);
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if (!device_ref)
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goto fail;
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buf = av_buffer_create((uint8_t*)ctx, sizeof(*ctx),
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hwframe_ctx_free, NULL,
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AV_BUFFER_FLAG_READONLY);
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if (!buf)
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goto fail;
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ctx->av_class = &hwframe_ctx_class;
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ctx->device_ref = device_ref;
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ctx->device_ctx = device_ctx;
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ctx->format = AV_PIX_FMT_NONE;
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ctx->sw_format = AV_PIX_FMT_NONE;
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ctx->internal->hw_type = hw_type;
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return buf;
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fail:
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if (device_ref)
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av_buffer_unref(&device_ref);
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if (ctx->internal)
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av_freep(&ctx->internal->priv);
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av_freep(&ctx->internal);
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av_freep(&ctx->hwctx);
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av_freep(&ctx);
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return NULL;
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}
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static int hwframe_pool_prealloc(AVBufferRef *ref)
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{
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AVHWFramesContext *ctx = (AVHWFramesContext*)ref->data;
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AVFrame **frames;
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int i, ret = 0;
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frames = av_mallocz_array(ctx->initial_pool_size, sizeof(*frames));
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if (!frames)
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return AVERROR(ENOMEM);
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for (i = 0; i < ctx->initial_pool_size; i++) {
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frames[i] = av_frame_alloc();
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if (!frames[i])
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goto fail;
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ret = av_hwframe_get_buffer(ref, frames[i], 0);
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if (ret < 0)
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goto fail;
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}
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fail:
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for (i = 0; i < ctx->initial_pool_size; i++)
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av_frame_free(&frames[i]);
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av_freep(&frames);
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return ret;
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}
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int av_hwframe_ctx_init(AVBufferRef *ref)
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{
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AVHWFramesContext *ctx = (AVHWFramesContext*)ref->data;
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const enum AVPixelFormat *pix_fmt;
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int ret;
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if (ctx->internal->source_frames) {
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/* A derived frame context is already initialised. */
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return 0;
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}
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/* validate the pixel format */
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for (pix_fmt = ctx->internal->hw_type->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++) {
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if (*pix_fmt == ctx->format)
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break;
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}
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if (*pix_fmt == AV_PIX_FMT_NONE) {
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av_log(ctx, AV_LOG_ERROR,
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"The hardware pixel format '%s' is not supported by the device type '%s'\n",
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av_get_pix_fmt_name(ctx->format), ctx->internal->hw_type->name);
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return AVERROR(ENOSYS);
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}
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/* validate the dimensions */
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ret = av_image_check_size(ctx->width, ctx->height, 0, ctx);
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if (ret < 0)
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return ret;
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/* format-specific init */
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if (ctx->internal->hw_type->frames_init) {
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ret = ctx->internal->hw_type->frames_init(ctx);
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if (ret < 0)
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goto fail;
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}
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|
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if (ctx->internal->pool_internal && !ctx->pool)
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ctx->pool = ctx->internal->pool_internal;
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|
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/* preallocate the frames in the pool, if requested */
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if (ctx->initial_pool_size > 0) {
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ret = hwframe_pool_prealloc(ref);
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if (ret < 0)
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goto fail;
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}
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|
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return 0;
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fail:
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if (ctx->internal->hw_type->frames_uninit)
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ctx->internal->hw_type->frames_uninit(ctx);
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return ret;
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}
|
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|
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int av_hwframe_transfer_get_formats(AVBufferRef *hwframe_ref,
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enum AVHWFrameTransferDirection dir,
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enum AVPixelFormat **formats, int flags)
|
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{
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AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
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|
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if (!ctx->internal->hw_type->transfer_get_formats)
|
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return AVERROR(ENOSYS);
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|
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return ctx->internal->hw_type->transfer_get_formats(ctx, dir, formats);
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}
|
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|
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static int transfer_data_alloc(AVFrame *dst, const AVFrame *src, int flags)
|
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{
|
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AVHWFramesContext *ctx = (AVHWFramesContext*)src->hw_frames_ctx->data;
|
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AVFrame *frame_tmp;
|
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int ret = 0;
|
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|
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frame_tmp = av_frame_alloc();
|
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if (!frame_tmp)
|
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return AVERROR(ENOMEM);
|
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|
||||
/* if the format is set, use that
|
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* otherwise pick the first supported one */
|
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if (dst->format >= 0) {
|
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frame_tmp->format = dst->format;
|
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} else {
|
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enum AVPixelFormat *formats;
|
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|
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ret = av_hwframe_transfer_get_formats(src->hw_frames_ctx,
|
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AV_HWFRAME_TRANSFER_DIRECTION_FROM,
|
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&formats, 0);
|
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if (ret < 0)
|
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goto fail;
|
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frame_tmp->format = formats[0];
|
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av_freep(&formats);
|
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}
|
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frame_tmp->width = ctx->width;
|
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frame_tmp->height = ctx->height;
|
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|
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ret = av_frame_get_buffer(frame_tmp, 32);
|
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if (ret < 0)
|
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goto fail;
|
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|
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ret = av_hwframe_transfer_data(frame_tmp, src, flags);
|
||||
if (ret < 0)
|
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goto fail;
|
||||
|
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frame_tmp->width = src->width;
|
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frame_tmp->height = src->height;
|
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|
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av_frame_move_ref(dst, frame_tmp);
|
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|
||||
fail:
|
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av_frame_free(&frame_tmp);
|
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return ret;
|
||||
}
|
||||
|
||||
int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
|
||||
{
|
||||
AVHWFramesContext *ctx;
|
||||
int ret;
|
||||
|
||||
if (!dst->buf[0])
|
||||
return transfer_data_alloc(dst, src, flags);
|
||||
|
||||
if (src->hw_frames_ctx) {
|
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ctx = (AVHWFramesContext*)src->hw_frames_ctx->data;
|
||||
|
||||
ret = ctx->internal->hw_type->transfer_data_from(ctx, dst, src);
|
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if (ret < 0)
|
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return ret;
|
||||
} else if (dst->hw_frames_ctx) {
|
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ctx = (AVHWFramesContext*)dst->hw_frames_ctx->data;
|
||||
|
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ret = ctx->internal->hw_type->transfer_data_to(ctx, dst, src);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
} else
|
||||
return AVERROR(ENOSYS);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
|
||||
{
|
||||
AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
|
||||
int ret;
|
||||
|
||||
if (ctx->internal->source_frames) {
|
||||
// This is a derived frame context, so we allocate in the source
|
||||
// and map the frame immediately.
|
||||
AVFrame *src_frame;
|
||||
|
||||
frame->format = ctx->format;
|
||||
frame->hw_frames_ctx = av_buffer_ref(hwframe_ref);
|
||||
if (!frame->hw_frames_ctx)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
src_frame = av_frame_alloc();
|
||||
if (!src_frame)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
ret = av_hwframe_get_buffer(ctx->internal->source_frames,
|
||||
src_frame, 0);
|
||||
if (ret < 0) {
|
||||
av_frame_free(&src_frame);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = av_hwframe_map(frame, src_frame,
|
||||
ctx->internal->source_allocation_map_flags);
|
||||
if (ret) {
|
||||
av_log(ctx, AV_LOG_ERROR, "Failed to map frame into derived "
|
||||
"frame context: %d.\n", ret);
|
||||
av_frame_free(&src_frame);
|
||||
return ret;
|
||||
}
|
||||
|
||||
// Free the source frame immediately - the mapped frame still
|
||||
// contains a reference to it.
|
||||
av_frame_free(&src_frame);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!ctx->internal->hw_type->frames_get_buffer)
|
||||
return AVERROR(ENOSYS);
|
||||
|
||||
if (!ctx->pool)
|
||||
return AVERROR(EINVAL);
|
||||
|
||||
frame->hw_frames_ctx = av_buffer_ref(hwframe_ref);
|
||||
if (!frame->hw_frames_ctx)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
ret = ctx->internal->hw_type->frames_get_buffer(ctx, frame);
|
||||
if (ret < 0) {
|
||||
av_buffer_unref(&frame->hw_frames_ctx);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *av_hwdevice_hwconfig_alloc(AVBufferRef *ref)
|
||||
{
|
||||
AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
|
||||
const HWContextType *hw_type = ctx->internal->hw_type;
|
||||
|
||||
if (hw_type->device_hwconfig_size == 0)
|
||||
return NULL;
|
||||
|
||||
return av_mallocz(hw_type->device_hwconfig_size);
|
||||
}
|
||||
|
||||
AVHWFramesConstraints *av_hwdevice_get_hwframe_constraints(AVBufferRef *ref,
|
||||
const void *hwconfig)
|
||||
{
|
||||
AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
|
||||
const HWContextType *hw_type = ctx->internal->hw_type;
|
||||
AVHWFramesConstraints *constraints;
|
||||
|
||||
if (!hw_type->frames_get_constraints)
|
||||
return NULL;
|
||||
|
||||
constraints = av_mallocz(sizeof(*constraints));
|
||||
if (!constraints)
|
||||
return NULL;
|
||||
|
||||
constraints->min_width = constraints->min_height = 0;
|
||||
constraints->max_width = constraints->max_height = INT_MAX;
|
||||
|
||||
if (hw_type->frames_get_constraints(ctx, hwconfig, constraints) >= 0) {
|
||||
return constraints;
|
||||
} else {
|
||||
av_hwframe_constraints_free(&constraints);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void av_hwframe_constraints_free(AVHWFramesConstraints **constraints)
|
||||
{
|
||||
if (*constraints) {
|
||||
av_freep(&(*constraints)->valid_hw_formats);
|
||||
av_freep(&(*constraints)->valid_sw_formats);
|
||||
}
|
||||
av_freep(constraints);
|
||||
}
|
||||
|
||||
int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type,
|
||||
const char *device, AVDictionary *opts, int flags)
|
||||
{
|
||||
AVBufferRef *device_ref = NULL;
|
||||
AVHWDeviceContext *device_ctx;
|
||||
int ret = 0;
|
||||
|
||||
device_ref = av_hwdevice_ctx_alloc(type);
|
||||
if (!device_ref) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
device_ctx = (AVHWDeviceContext*)device_ref->data;
|
||||
|
||||
if (!device_ctx->internal->hw_type->device_create) {
|
||||
ret = AVERROR(ENOSYS);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = device_ctx->internal->hw_type->device_create(device_ctx, device,
|
||||
opts, flags);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
ret = av_hwdevice_ctx_init(device_ref);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
*pdevice_ref = device_ref;
|
||||
return 0;
|
||||
fail:
|
||||
av_buffer_unref(&device_ref);
|
||||
*pdevice_ref = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
int av_hwdevice_ctx_create_derived(AVBufferRef **dst_ref_ptr,
|
||||
enum AVHWDeviceType type,
|
||||
AVBufferRef *src_ref, int flags)
|
||||
{
|
||||
AVBufferRef *dst_ref = NULL, *tmp_ref;
|
||||
AVHWDeviceContext *dst_ctx, *tmp_ctx;
|
||||
int ret = 0;
|
||||
|
||||
tmp_ref = src_ref;
|
||||
while (tmp_ref) {
|
||||
tmp_ctx = (AVHWDeviceContext*)tmp_ref->data;
|
||||
if (tmp_ctx->type == type) {
|
||||
dst_ref = av_buffer_ref(tmp_ref);
|
||||
if (!dst_ref) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
goto done;
|
||||
}
|
||||
tmp_ref = tmp_ctx->internal->source_device;
|
||||
}
|
||||
|
||||
dst_ref = av_hwdevice_ctx_alloc(type);
|
||||
if (!dst_ref) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
dst_ctx = (AVHWDeviceContext*)dst_ref->data;
|
||||
|
||||
tmp_ref = src_ref;
|
||||
while (tmp_ref) {
|
||||
tmp_ctx = (AVHWDeviceContext*)tmp_ref->data;
|
||||
if (dst_ctx->internal->hw_type->device_derive) {
|
||||
ret = dst_ctx->internal->hw_type->device_derive(dst_ctx,
|
||||
tmp_ctx,
|
||||
flags);
|
||||
if (ret == 0) {
|
||||
dst_ctx->internal->source_device = av_buffer_ref(src_ref);
|
||||
if (!dst_ctx->internal->source_device) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
ret = av_hwdevice_ctx_init(dst_ref);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
goto done;
|
||||
}
|
||||
if (ret != AVERROR(ENOSYS))
|
||||
goto fail;
|
||||
}
|
||||
tmp_ref = tmp_ctx->internal->source_device;
|
||||
}
|
||||
|
||||
ret = AVERROR(ENOSYS);
|
||||
goto fail;
|
||||
|
||||
done:
|
||||
*dst_ref_ptr = dst_ref;
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
av_buffer_unref(&dst_ref);
|
||||
*dst_ref_ptr = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void ff_hwframe_unmap(void *opaque, uint8_t *data)
|
||||
{
|
||||
HWMapDescriptor *hwmap = (HWMapDescriptor*)data;
|
||||
AVHWFramesContext *ctx = opaque;
|
||||
|
||||
if (hwmap->unmap)
|
||||
hwmap->unmap(ctx, hwmap);
|
||||
|
||||
av_frame_free(&hwmap->source);
|
||||
|
||||
av_buffer_unref(&hwmap->hw_frames_ctx);
|
||||
|
||||
av_free(hwmap);
|
||||
}
|
||||
|
||||
int ff_hwframe_map_create(AVBufferRef *hwframe_ref,
|
||||
AVFrame *dst, const AVFrame *src,
|
||||
void (*unmap)(AVHWFramesContext *ctx,
|
||||
HWMapDescriptor *hwmap),
|
||||
void *priv)
|
||||
{
|
||||
AVHWFramesContext *ctx = (AVHWFramesContext*)hwframe_ref->data;
|
||||
HWMapDescriptor *hwmap;
|
||||
int ret;
|
||||
|
||||
hwmap = av_mallocz(sizeof(*hwmap));
|
||||
if (!hwmap) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
hwmap->source = av_frame_alloc();
|
||||
if (!hwmap->source) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
ret = av_frame_ref(hwmap->source, src);
|
||||
if (ret < 0)
|
||||
goto fail;
|
||||
|
||||
hwmap->hw_frames_ctx = av_buffer_ref(hwframe_ref);
|
||||
if (!hwmap->hw_frames_ctx) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
hwmap->unmap = unmap;
|
||||
hwmap->priv = priv;
|
||||
|
||||
dst->buf[0] = av_buffer_create((uint8_t*)hwmap, sizeof(*hwmap),
|
||||
&ff_hwframe_unmap, ctx, 0);
|
||||
if (!dst->buf[0]) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (hwmap) {
|
||||
av_buffer_unref(&hwmap->hw_frames_ctx);
|
||||
av_frame_free(&hwmap->source);
|
||||
}
|
||||
av_free(hwmap);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int av_hwframe_map(AVFrame *dst, const AVFrame *src, int flags)
|
||||
{
|
||||
AVHWFramesContext *src_frames, *dst_frames;
|
||||
HWMapDescriptor *hwmap;
|
||||
int ret;
|
||||
|
||||
if (src->hw_frames_ctx && dst->hw_frames_ctx) {
|
||||
src_frames = (AVHWFramesContext*)src->hw_frames_ctx->data;
|
||||
dst_frames = (AVHWFramesContext*)dst->hw_frames_ctx->data;
|
||||
|
||||
if ((src_frames == dst_frames &&
|
||||
src->format == dst_frames->sw_format &&
|
||||
dst->format == dst_frames->format) ||
|
||||
(src_frames->internal->source_frames &&
|
||||
src_frames->internal->source_frames->data ==
|
||||
(uint8_t*)dst_frames)) {
|
||||
// This is an unmap operation. We don't need to directly
|
||||
// do anything here other than fill in the original frame,
|
||||
// because the real unmap will be invoked when the last
|
||||
// reference to the mapped frame disappears.
|
||||
if (!src->buf[0]) {
|
||||
av_log(src_frames, AV_LOG_ERROR, "Invalid mapping "
|
||||
"found when attempting unmap.\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
hwmap = (HWMapDescriptor*)src->buf[0]->data;
|
||||
av_frame_unref(dst);
|
||||
return av_frame_ref(dst, hwmap->source);
|
||||
}
|
||||
}
|
||||
|
||||
if (src->hw_frames_ctx) {
|
||||
src_frames = (AVHWFramesContext*)src->hw_frames_ctx->data;
|
||||
|
||||
if (src_frames->format == src->format &&
|
||||
src_frames->internal->hw_type->map_from) {
|
||||
ret = src_frames->internal->hw_type->map_from(src_frames,
|
||||
dst, src, flags);
|
||||
if (ret != AVERROR(ENOSYS))
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
if (dst->hw_frames_ctx) {
|
||||
dst_frames = (AVHWFramesContext*)dst->hw_frames_ctx->data;
|
||||
|
||||
if (dst_frames->format == dst->format &&
|
||||
dst_frames->internal->hw_type->map_to) {
|
||||
ret = dst_frames->internal->hw_type->map_to(dst_frames,
|
||||
dst, src, flags);
|
||||
if (ret != AVERROR(ENOSYS))
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return AVERROR(ENOSYS);
|
||||
}
|
||||
|
||||
int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx,
|
||||
enum AVPixelFormat format,
|
||||
AVBufferRef *derived_device_ctx,
|
||||
AVBufferRef *source_frame_ctx,
|
||||
int flags)
|
||||
{
|
||||
AVBufferRef *dst_ref = NULL;
|
||||
AVHWFramesContext *dst = NULL;
|
||||
AVHWFramesContext *src = (AVHWFramesContext*)source_frame_ctx->data;
|
||||
int ret;
|
||||
|
||||
if (src->internal->source_frames) {
|
||||
AVHWFramesContext *src_src =
|
||||
(AVHWFramesContext*)src->internal->source_frames->data;
|
||||
AVHWDeviceContext *dst_dev =
|
||||
(AVHWDeviceContext*)derived_device_ctx->data;
|
||||
|
||||
if (src_src->device_ctx == dst_dev) {
|
||||
// This is actually an unmapping, so we just return a
|
||||
// reference to the source frame context.
|
||||
*derived_frame_ctx =
|
||||
av_buffer_ref(src->internal->source_frames);
|
||||
if (!*derived_frame_ctx) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
dst_ref = av_hwframe_ctx_alloc(derived_device_ctx);
|
||||
if (!dst_ref) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
dst = (AVHWFramesContext*)dst_ref->data;
|
||||
|
||||
dst->format = format;
|
||||
dst->sw_format = src->sw_format;
|
||||
dst->width = src->width;
|
||||
dst->height = src->height;
|
||||
|
||||
dst->internal->source_frames = av_buffer_ref(source_frame_ctx);
|
||||
if (!dst->internal->source_frames) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
dst->internal->source_allocation_map_flags =
|
||||
flags & (AV_HWFRAME_MAP_READ |
|
||||
AV_HWFRAME_MAP_WRITE |
|
||||
AV_HWFRAME_MAP_OVERWRITE |
|
||||
AV_HWFRAME_MAP_DIRECT);
|
||||
|
||||
ret = AVERROR(ENOSYS);
|
||||
if (src->internal->hw_type->frames_derive_from)
|
||||
ret = src->internal->hw_type->frames_derive_from(dst, src, flags);
|
||||
if (ret == AVERROR(ENOSYS) &&
|
||||
dst->internal->hw_type->frames_derive_to)
|
||||
ret = dst->internal->hw_type->frames_derive_to(dst, src, flags);
|
||||
if (ret == AVERROR(ENOSYS))
|
||||
ret = 0;
|
||||
if (ret)
|
||||
goto fail;
|
||||
|
||||
*derived_frame_ctx = dst_ref;
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (dst)
|
||||
av_buffer_unref(&dst->internal->source_frames);
|
||||
av_buffer_unref(&dst_ref);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ff_hwframe_map_replace(AVFrame *dst, const AVFrame *src)
|
||||
{
|
||||
HWMapDescriptor *hwmap = (HWMapDescriptor*)dst->buf[0]->data;
|
||||
av_frame_unref(hwmap->source);
|
||||
return av_frame_ref(hwmap->source, src);
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue