#include "pixdesc.h"
#include "pixfmt.h"
-static const HWContextType *hw_table[] = {
+static const HWContextType * const hw_table[] = {
#if CONFIG_CUDA
&ff_hwcontext_type_cuda,
#endif
+#if CONFIG_DXVA2
+ &ff_hwcontext_type_dxva2,
+#endif
+#if CONFIG_LIBMFX
+ &ff_hwcontext_type_qsv,
+#endif
#if CONFIG_VAAPI
&ff_hwcontext_type_vaapi,
#endif
NULL,
};
+const char *hw_type_names[] = {
+ [AV_HWDEVICE_TYPE_CUDA] = "cuda",
+ [AV_HWDEVICE_TYPE_DXVA2] = "dxva2",
+ [AV_HWDEVICE_TYPE_QSV] = "qsv",
+ [AV_HWDEVICE_TYPE_VAAPI] = "vaapi",
+ [AV_HWDEVICE_TYPE_VDPAU] = "vdpau",
+};
+
+enum AVHWDeviceType av_hwdevice_find_type_by_name(const char *name)
+{
+ int type;
+ for (type = 0; type < FF_ARRAY_ELEMS(hw_type_names); type++) {
+ if (hw_type_names[type] && !strcmp(hw_type_names[type], name))
+ return type;
+ }
+ return AV_HWDEVICE_TYPE_NONE;
+}
+
+const char *av_hwdevice_get_type_name(enum AVHWDeviceType type)
+{
+ if (type > AV_HWDEVICE_TYPE_NONE &&
+ type < FF_ARRAY_ELEMS(hw_type_names))
+ return hw_type_names[type];
+ else
+ return NULL;
+}
+
+enum AVHWDeviceType av_hwdevice_iterate_types(enum AVHWDeviceType prev)
+{
+ enum AVHWDeviceType next;
+ int i, set = 0;
+ for (i = 0; hw_table[i]; i++) {
+ if (prev != AV_HWDEVICE_TYPE_NONE && hw_table[i]->type <= prev)
+ continue;
+ if (!set || hw_table[i]->type < next) {
+ next = hw_table[i]->type;
+ set = 1;
+ }
+ }
+ return set ? next : AV_HWDEVICE_TYPE_NONE;
+}
+
static const AVClass hwdevice_ctx_class = {
.class_name = "AVHWDeviceContext",
.item_name = av_default_item_name,
if (ctx->free)
ctx->free(ctx);
+ av_buffer_unref(&ctx->internal->source_device);
+
av_freep(&ctx->hwctx);
av_freep(&ctx->internal->priv);
av_freep(&ctx->internal);
{
AVHWFramesContext *ctx = (AVHWFramesContext*)data;
- if (ctx->internal->pool_internal)
- av_buffer_pool_uninit(&ctx->internal->pool_internal);
+ if (ctx->internal->source_frames) {
+ av_buffer_unref(&ctx->internal->source_frames);
- if (ctx->internal->hw_type->frames_uninit)
- ctx->internal->hw_type->frames_uninit(ctx);
+ } else {
+ if (ctx->internal->pool_internal)
+ av_buffer_pool_uninit(&ctx->internal->pool_internal);
- if (ctx->free)
- ctx->free(ctx);
+ if (ctx->internal->hw_type->frames_uninit)
+ ctx->internal->hw_type->frames_uninit(ctx);
+
+ if (ctx->free)
+ ctx->free(ctx);
+ }
av_buffer_unref(&ctx->device_ref);
ctx->device_ref = device_ref;
ctx->device_ctx = device_ctx;
ctx->format = AV_PIX_FMT_NONE;
+ ctx->sw_format = AV_PIX_FMT_NONE;
ctx->internal->hw_type = hw_type;
const enum AVPixelFormat *pix_fmt;
int ret;
+ if (ctx->internal->source_frames) {
+ /* A derived frame context is already initialised. */
+ return 0;
+ }
+
/* validate the pixel format */
for (pix_fmt = ctx->internal->hw_type->pix_fmts; *pix_fmt != AV_PIX_FMT_NONE; pix_fmt++) {
if (*pix_fmt == ctx->format)
static int transfer_data_alloc(AVFrame *dst, const AVFrame *src, int flags)
{
+ AVHWFramesContext *ctx = (AVHWFramesContext*)src->hw_frames_ctx->data;
AVFrame *frame_tmp;
int ret = 0;
frame_tmp->format = formats[0];
av_freep(&formats);
}
- frame_tmp->width = src->width;
- frame_tmp->height = src->height;
+ frame_tmp->width = ctx->width;
+ frame_tmp->height = ctx->height;
ret = av_frame_get_buffer(frame_tmp, 32);
if (ret < 0)
if (ret < 0)
goto fail;
+ frame_tmp->width = src->width;
+ frame_tmp->height = src->height;
+
av_frame_move_ref(dst, frame_tmp);
fail:
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;
+
+ 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)
+ return ret;
+
+ ret = av_hwframe_map(frame, src_frame, 0);
+ 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);
}
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;
+ }
+ 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;
+ }
+
+ ret = av_hwframe_ctx_init(dst_ref);
+ 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;
+}
projects / ffmpeg / blobdiff