refactor(hwcodec): 精简FFmpeg编译配置并移除解码器

- 优化FFmpeg编译选项,禁用不需要的库(avformat/swscale/swresample/avfilter等)
- 禁用所有解码器和大部分编码器,只保留实际使用的H264/H265/VP8/VP9编码器
- 移除hwcodec解码器模块,MJPEG解码改用libyuv实现
- 移除MJPEG编码器支持
- x86_64添加libmfx支持QSV编码器
- 修复H265 RKMPP编码器支持YUYV直接输入

libs/hwcodec/cpp/ffmpeg_ram/ffmpeg_ram_ffi.h

@@ -5,10 +5,6 @@
 
 #define AV_NUM_DATA_POINTERS 8
 
-typedef void (*RamDecodeCallback)(const void *obj, int width, int height,
-                                  int pixfmt,
-                                  int linesize[AV_NUM_DATA_POINTERS],
-                                  uint8_t *data[AV_NUM_DATA_POINTERS], int key);
 typedef void (*RamEncodeCallback)(const uint8_t *data, int len, int64_t pts,
                                   int key, const void *obj);
 
@@ -18,18 +14,13 @@ void *ffmpeg_ram_new_encoder(const char *name, const char *mc_name, int width,
                              int thread_count, int gpu, int *linesize,
                              int *offset, int *length,
                              RamEncodeCallback callback);
-void *ffmpeg_ram_new_decoder(const char *name, int device_type,
-                             int thread_count, RamDecodeCallback callback);
 int ffmpeg_ram_encode(void *encoder, const uint8_t *data, int length,
                       const void *obj, int64_t ms);
-int ffmpeg_ram_decode(void *decoder, const uint8_t *data, int length,
-                      const void *obj);
 void ffmpeg_ram_free_encoder(void *encoder);
-void ffmpeg_ram_free_decoder(void *decoder);
 int ffmpeg_ram_get_linesize_offset_length(int pix_fmt, int width, int height,
                                           int align, int *linesize, int *offset,
                                           int *length);
 int ffmpeg_ram_set_bitrate(void *encoder, int kbs);
 void ffmpeg_ram_request_keyframe(void *encoder);
 
-#endif // FFMPEG_RAM_FFI_H
+#endif // FFMPEG_RAM_FFI_H