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fftools/ffplay_renderer: Add device selection support

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The device can be selected by GPU name or index. For example,

ffplay -hwaccel cuda \
	-vulkan_params device="NVIDIA GeForce RTX 3060" \
	foo.mp4

ffplay -hwaccel cuda -vulkan_params device="0" foo.mp4

Please note that select device by index only supported by hwcontext,
not by libplacebo.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili 2024-01-09 23:41:01 +08:00
parent 38aca1dc9a
commit 564a15b2ee
1 changed files with 12 additions and 1 deletions
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13
fftools/ffplay_renderer.c
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@ -209,6 +209,16 @@ static int add_device_extension(const AVDictionary *opt,
return av_dict_set(dict, dev_ext_key, ext_list, AV_DICT_DONT_STRDUP_VAL);
}
static const char *select_device(const AVDictionary *opt)
{
const AVDictionaryEntry *entry;
entry = av_dict_get(opt, "device", NULL, 0);
if (entry)
return entry->value;
return NULL;
}
static int create_vk_by_hwcontext(VkRenderer *renderer,
const char **ext, unsigned num_ext,
const AVDictionary *opt)
@ -229,7 +239,7 @@ static int create_vk_by_hwcontext(VkRenderer *renderer,
}
ret = av_hwdevice_ctx_create(&ctx->hw_device_ref, AV_HWDEVICE_TYPE_VULKAN,
NULL, dict, 0);
select_device(opt), dict, 0);
av_dict_free(&dict);
if (ret < 0)
return ret;
@ -367,6 +377,7 @@ static int create_vk_by_placebo(VkRenderer *renderer,
.opt_extensions = optional_device_exts,
.num_opt_extensions = FF_ARRAY_ELEMS(optional_device_exts),
.extra_queues = VK_QUEUE_VIDEO_DECODE_BIT_KHR,
.device_name = select_device(opt),
));
if (!ctx->placebo_vulkan)
return AVERROR_EXTERNAL;