linux dynamic load libva (#10171)

1. Linux dynamic load libva, which can fix lack of libva dependency for
   appimage or flatpak, also fix libva version mismatch between build
and run.
2. Remove libvdpau, it's not used, and add libva2 explicitly for deb and
   appimage
3. Print FFmpeg configure log to know the actual codecs.

Test
*  ubuntu 22.04 x64
  - [x] deb
  - [x] flatpak
  - [x] appimage
* ubuntu 18.04
  * deb: fcntl64 not found
  - [x]:appimage
  - [ ]: platpak
hwcodec example:
  - [x]: combination of lacking any of libva2, libva-x11-2, libva-drm2,
    intel-media-va-driver
- [ ] federa
- [ ] arch
- [ ] arm64: my ci can't finish arm64 building

Signed-off-by: 21pages <sunboeasy@gmail.com>

res/vcpkg/ffmpeg/patch/0005-mediacodec-changing-bitrate.patch

@@ -1,17 +1,17 @@
-From 51ac90d8084f7b153eac5133765fa9d0365aa239 Mon Sep 17 00:00:00 2001
+From ed73f8f6494d74ae47218f9503c7e3de385d9253 Mon Sep 17 00:00:00 2001
 From: 21pages <sunboeasy@gmail.com>
 Date: Sun, 24 Nov 2024 14:17:39 +0800
-Subject: [PATCH 1/4] mediacodec changing bitrate
+Subject: [PATCH 1/2] mediacodec changing bitrate
 
 Signed-off-by: 21pages <sunboeasy@gmail.com>
 ---
- libavcodec/mediacodec_wrapper.c | 101 ++++++++++++++++++++++++++++++++
- libavcodec/mediacodec_wrapper.h |   7 +++
- libavcodec/mediacodecenc.c      |  18 ++++++
- 3 files changed, 126 insertions(+)
+ libavcodec/mediacodec_wrapper.c | 97 +++++++++++++++++++++++++++++++++
+ libavcodec/mediacodec_wrapper.h |  7 +++
+ libavcodec/mediacodecenc.c      | 18 ++++++
+ 3 files changed, 122 insertions(+)
 
 diff --git a/libavcodec/mediacodec_wrapper.c b/libavcodec/mediacodec_wrapper.c
-index 306359071e..1ab4e673f6 100644
+index 306359071e..7edb38a7d7 100644
 --- a/libavcodec/mediacodec_wrapper.c
 +++ b/libavcodec/mediacodec_wrapper.c
 @@ -35,6 +35,8 @@
@@ -145,25 +145,7 @@ index 306359071e..1ab4e673f6 100644
  };
  
  typedef struct FFAMediaFormatNdk {
-@@ -1893,6 +1982,8 @@ typedef struct FFAMediaCodecNdk {
-     // Available since API level 26.
-     media_status_t (*setInputSurface)(AMediaCodec*, ANativeWindow *);
-     media_status_t (*signalEndOfInputStream)(AMediaCodec *);
-+
-+    media_status_t (*setParameters)(AMediaCodec *, const AMediaFormat *format);
- } FFAMediaCodecNdk;
- 
- static const FFAMediaFormat media_format_ndk;
-@@ -2154,6 +2245,8 @@ static inline FFAMediaCodec *ndk_codec_create(int method, const char *arg) {
-     GET_SYMBOL(setInputSurface, 0)
-     GET_SYMBOL(signalEndOfInputStream, 0)
- 
-+    GET_SYMBOL(setParameters, 0)
-+
- #undef GET_SYMBOL
- 
-     switch (method) {
-@@ -2428,6 +2521,12 @@ static int mediacodec_ndk_signalEndOfInputStream(FFAMediaCodec *ctx)
+@@ -2428,6 +2517,12 @@ static int mediacodec_ndk_signalEndOfInputStream(FFAMediaCodec *ctx)
      return 0;
  }
  
@@ -176,7 +158,7 @@ index 306359071e..1ab4e673f6 100644
  static const FFAMediaFormat media_format_ndk = {
      .class = &amediaformat_ndk_class,
  
-@@ -2489,6 +2588,8 @@ static const FFAMediaCodec media_codec_ndk = {
+@@ -2489,6 +2584,8 @@ static const FFAMediaCodec media_codec_ndk = {
      .getConfigureFlagEncode = mediacodec_ndk_getConfigureFlagEncode,
      .cleanOutputBuffers = mediacodec_ndk_cleanOutputBuffers,
      .signalEndOfInputStream = mediacodec_ndk_signalEndOfInputStream,
@@ -260,5 +242,5 @@ index d3bf27cb7f..621529d686 100644
      // 1. Serious error
      // 2. Got a packet success
 -- 
-2.43.0.windows.1
+2.34.1