libSceVideodec2 technical debt

sceVideodec2GetAvcPictureInfo (libSceVideodec2) - runs the sceVideodec2GetPictureInfo body (KytyPS5 binds both NIDs to one function; SharpProspero gives both the same outputInfo, first, second signature); the second (bottom field) picture info is never written, since only progressive H.264 output is modelled. prosper calls the AVC layout unestablished (no title observed calling it)

sceVideodec2CreateDecoder (libSceVideodec2) decodes HEVC (codec type 974921) and VP9 (2382845) through FFmpeg, besides H.264. The tags come from SharpProspero's Videodec2CodecType and EVO-PLAYER-PS5's sce_videodec2.h, which records them from hardware runs. HEVC input is converted from length-prefixed NAL units to Annex B as for H.264, and VP9 frames are passed through. Output is the same 8-bit NV12 for every codec; a decoder for HEVC Main10 or VP9 Profile 2 is created, but a frame deeper than 8 bits throws, since the console's 10-bit output layout is unknown, and QueryDecoderMemoryInfo reports the 8-bit frame size for it. sceVideodec2GetPictureInfo and sceVideodec2GetAvcPictureInfo throw for HEVC and VP9 pictures, which use other layouts (SceVideodec2HevcPictureInfo, SceVideodec2Vp9PictureInfo), and sceVideodec2GetHevcPictureInfo and sceVideodec2GetVp9PictureInfo are not exported