Bug 1864008 - Integrate libvpx with libavcodec r=media-playback-reviewers,glandium,padenot

- Add libvpxdec.c and libvpxenc.c to libavcodec/moz.build
- Add ff_libvpx_vp{8,9}_{de, en}coder to codec_list
- Set CONFIG_LIBVPX on unix64 platforms
- Enable CONFIG_LIBVPX_VP*
- Expose libavcodec APIs that libvpx{dec, enc}.c need
- Expose libvpx APIS via gkcodecs' .symbols file if MOZ_SYSTEM_LIBVPX is
  not set

Differential Revision: https://phabricator.services.mozilla.com/D193601

config/external/gkcodecs/gkcodecs.symbols

@@ -75,6 +75,7 @@ vorbis_synthesis_pcmout
 vorbis_synthesis_read
 vorbis_synthesis_restart
 #ifndef MOZ_SYSTEM_LIBVPX
+vpx_codec_build_config
 vpx_codec_control_
 vpx_codec_dec_init_ver
 vpx_codec_decode
@@ -91,6 +92,8 @@ vpx_codec_get_caps
 vpx_codec_get_cx_data
 vpx_codec_get_frame
 vpx_codec_set_frame_buffer_functions
+vpx_codec_version
+vpx_codec_version_str
 vpx_codec_vp8_cx
 vpx_codec_vp8_dx
 vpx_codec_vp9_cx

media/ffvpx/config_components_audio_video.h

@@ -588,8 +588,8 @@
 #define CONFIG_LIBSPEEX_DECODER 0
 #define CONFIG_LIBUAVS3D_DECODER 0
 #define CONFIG_LIBVORBIS_DECODER 1
-#define CONFIG_LIBVPX_VP8_DECODER 0
-#define CONFIG_LIBVPX_VP9_DECODER 0
+#define CONFIG_LIBVPX_VP8_DECODER 1
+#define CONFIG_LIBVPX_VP9_DECODER 1
 #define CONFIG_LIBZVBI_TELETEXT_DECODER 0
 #define CONFIG_BINTEXT_DECODER 0
 #define CONFIG_XBIN_DECODER 0
@@ -819,8 +819,8 @@
 #define CONFIG_LIBTWOLAME_ENCODER 0
 #define CONFIG_LIBVO_AMRWBENC_ENCODER 0
 #define CONFIG_LIBVORBIS_ENCODER 0
-#define CONFIG_LIBVPX_VP8_ENCODER 0
-#define CONFIG_LIBVPX_VP9_ENCODER 0
+#define CONFIG_LIBVPX_VP8_ENCODER 1
+#define CONFIG_LIBVPX_VP9_ENCODER 1
 #define CONFIG_LIBWEBP_ANIM_ENCODER 0
 #define CONFIG_LIBWEBP_ENCODER 0
 #define CONFIG_LIBX262_ENCODER 0

media/ffvpx/config_unix64.h

@@ -1,7 +1,7 @@
 /* Automatically generated by configure - do not modify! */
 #ifndef FFMPEG_CONFIG_H
 #define FFMPEG_CONFIG_H
-#define FFMPEG_CONFIGURATION "--disable-all --enable-avcodec --enable-decoder='vp8,vp9,mp3,flac,av1' --enable-parser='vp8,vp9' --disable-static --enable-shared --disable-autodetect --disable-iconv --enable-vaapi --enable-hwaccel='vp9_vaapi,vp8_vaapi,av1_vaapi' --enable-libdav1d"
+#define FFMPEG_CONFIGURATION "--disable-all --enable-avcodec --enable-decoder='vp8,vp9,mp3,flac,av1' --enable-parser='vp8,vp9' --disable-static --enable-shared --disable-autodetect --disable-iconv --enable-vaapi --enable-hwaccel='vp9_vaapi,vp8_vaapi,av1_vaapi' --enable-libdav1d --enable-libvpx"
 #define FFMPEG_LICENSE "LGPL version 2.1 or later"
 #define CONFIG_THIS_YEAR 2022
 #define FFMPEG_DATADIR "/usr/local/share/ffmpeg"
@@ -10,7 +10,7 @@
 #define OS_NAME linux
 #define av_restrict restrict
 #define EXTERN_PREFIX ""
-#define EXTERN_ASM 
+#define EXTERN_ASM
 #define BUILDSUF ""
 #define SLIBSUF ".so"
 #define HAVE_MMX2 HAVE_MMXEXT
@@ -523,7 +523,7 @@
 #define CONFIG_LIBV4L2 0
 #define CONFIG_LIBVMAF 0
 #define CONFIG_LIBVORBIS 0
-#define CONFIG_LIBVPX 0
+#define CONFIG_LIBVPX 1
 #define CONFIG_LIBWEBP 0
 #define CONFIG_LIBXML2 0
 #define CONFIG_LIBZIMG 0

media/ffvpx/libavcodec/codec_list.c

@@ -43,5 +43,17 @@ static const FFCodec * const codec_list[] = {
 #endif
 #if CONFIG_LIBOPUS_DECODER
     &ff_libopus_decoder,
+#endif
+#if CONFIG_LIBVPX_VP8_DECODER
+    &ff_libvpx_vp8_decoder,
+#endif
+#if CONFIG_LIBVPX_VP9_DECODER
+    &ff_libvpx_vp9_decoder,
+#endif
+#if CONFIG_LIBVPX_VP8_ENCODER
+    &ff_libvpx_vp8_encoder,
+#endif
+#if CONFIG_LIBVPX_VP9_ENCODER
+    &ff_libvpx_vp9_encoder,
 #endif
     NULL };

media/ffvpx/libavcodec/moz.build

@@ -51,6 +51,8 @@ SOURCES += [
     'libopus.c',
     'libopusdec.c',
     'libvorbisdec.c',
+    'libvpxdec.c',
+    'libvpxenc.c',
     'log2_tab.c',
     'mpegaudio.c',
     'mpegaudiodata.c',
@@ -139,6 +141,12 @@ LOCAL_INCLUDES += [
     '/media/libvorbis',
 ]
 
+if not CONFIG["MOZ_SYSTEM_LIBVPX"]:
+  LOCAL_INCLUDES += ['/media/libvpx']
+else:
+  CXXFLAGS += CONFIG["MOZ_LIBVPX_CFLAGS"]
+  OS_LIBS += CONFIG["MOZ_LIBVPX_LIBS"]
+
 if CONFIG['MOZ_LIBAV_FFT']:
     SOURCES += [
         'avfft.c',

media/ffvpx/libavutil/avutil.symbols

@@ -3,6 +3,10 @@ av_add_stable
 av_append_path_component
 av_asprintf
 av_basename
+#ifndef MOZ_FFVPX_AUDIOONLY
+av_base64_decode
+av_base64_encode
+#endif
 av_bprint_append_data
 av_bprint_channel_layout
 av_bprint_chars
@@ -89,6 +93,7 @@ av_fifo_alloc2
 av_fifo_alloc_array
 av_fifo_can_read
 av_fifo_drain
+av_fifo_drain2
 av_fifo_free
 av_fifo_freep
 av_fifo_freep2
@@ -96,6 +101,7 @@ av_fifo_generic_peek
 av_fifo_generic_read
 av_fifo_generic_write
 av_fifo_grow
+av_fifo_peek
 av_fifo_realloc2
 av_fifo_read
 av_fifo_reset