libavcodec: Add H264/MPEG4 encoders based on OpenMAX IL

Signed-off-by: Martin Storsjö <martin@martin.st>

Changelog

@@ -54,6 +54,7 @@ version <next>:
 - VAAPI-accelerated format conversion and scaling
 - libnpp/CUDA-accelerated format conversion and scaling
 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
+- Generic OpenMAX IL encoder
 
 
 version 11:

configure

@@ -144,6 +144,7 @@ Hardware-accelerated decoding/encoding:
   --enable-libmfx          enable HW acceleration through libmfx
   --enable-mmal            enable decoding via MMAL [no]
   --enable-nvenc           enable encoding via NVENC [no]
+  --enable-omx             enable encoding via OpenMAX IL [no]
 
 Individual component options:
   --disable-everything     disable all components listed below
@@ -1272,6 +1273,7 @@ HW_CODECS_LIST="
     libmfx
     mmal
     nvenc
+    omx
 "
 
 HWACCEL_LIST="
@@ -2106,6 +2108,7 @@ h264_mmal_decoder_deps="mmal"
 h264_mmal_hwaccel_deps="mmal"
 h264_mmal_decoder_select="h264_decoder"
 h264_mmal_encoder_deps="mmal"
+h264_omx_encoder_deps="omx"
 h264_qsv_hwaccel_deps="libmfx"
 h264_vaapi_hwaccel_deps="vaapi"
 h264_vaapi_hwaccel_select="h264_decoder"
@@ -2133,6 +2136,7 @@ mpeg2_vaapi_hwaccel_deps="vaapi"
 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
 mpeg2_vdpau_hwaccel_deps="vdpau"
 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
+mpeg4_omx_encoder_deps="omx"
 mpeg4_vaapi_hwaccel_deps="vaapi"
 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
 mpeg4_vdpau_hwaccel_deps="vdpau"
@@ -2153,6 +2157,8 @@ wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
 # hardware-accelerated codecs
 nvenc_deps_any="dlopen LoadLibrary"
 nvenc_extralibs='$ldl'
+omx_deps="dlopen pthreads"
+omx_extralibs='$ldl'
 qsvdec_select="qsv"
 qsvenc_select="qsv"
 vaapi_encode_deps="vaapi"
@@ -4615,6 +4621,7 @@ enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect
                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
                                die "ERROR: mmal not found"; }
+enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
 enabled openssl           && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
                                add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||

libavcodec/Makefile

@@ -621,6 +621,7 @@ OBJS-$(CONFIG_QSVENC)                     += qsvenc.o
 
 OBJS-$(CONFIG_H264_MMAL_DECODER)          += mmaldec.o
 OBJS-$(CONFIG_H264_NVENC_ENCODER)         += nvenc_h264.o
+OBJS-$(CONFIG_H264_OMX_ENCODER)           += omx.o
 OBJS-$(CONFIG_H264_QSV_DECODER)           += qsvdec_h2645.o
 OBJS-$(CONFIG_H264_QSV_ENCODER)           += qsvenc_h264.o
 OBJS-$(CONFIG_H264_VAAPI_ENCODER)         += vaapi_encode_h264.o vaapi_encode_h26x.o
@@ -630,6 +631,7 @@ OBJS-$(CONFIG_HEVC_QSV_ENCODER)           += qsvenc_hevc.o hevc_ps_enc.o h2645_p
 OBJS-$(CONFIG_HEVC_VAAPI_ENCODER)         += vaapi_encode_h265.o vaapi_encode_h26x.o
 OBJS-$(CONFIG_MPEG2_QSV_DECODER)          += qsvdec_mpeg2.o
 OBJS-$(CONFIG_MPEG2_QSV_ENCODER)          += qsvenc_mpeg2.o
+OBJS-$(CONFIG_MPEG4_OMX_ENCODER)          += omx.o
 
 # libavformat dependencies
 OBJS-$(CONFIG_ISO_MEDIA)               += mpeg4audio.o mpegaudiodata.o

libavcodec/allcodecs.c

@@ -487,11 +487,13 @@ void avcodec_register_all(void)
      * above is available */
     REGISTER_ENCODER(LIBOPENH264,       libopenh264);
     REGISTER_ENCODER(H264_NVENC,        h264_nvenc);
+    REGISTER_ENCODER(H264_OMX,          h264_omx);
     REGISTER_ENCODER(H264_QSV,          h264_qsv);
     REGISTER_ENCODER(LIBKVAZAAR,        libkvazaar);
     REGISTER_ENCODER(HEVC_NVENC,        hevc_nvenc);
     REGISTER_ENCODER(HEVC_QSV,          hevc_qsv);
     REGISTER_ENCODER(MPEG2_QSV,         mpeg2_qsv);
+    REGISTER_ENCODER(MPEG4_OMX,         mpeg4_omx);
 #if FF_API_NVENC_OLD_NAME
     REGISTER_ENCODER(NVENC_H264,        nvenc_h264);
     REGISTER_ENCODER(NVENC_HEVC,        nvenc_hevc);

libavcodec/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 57
-#define LIBAVCODEC_VERSION_MINOR 17
+#define LIBAVCODEC_VERSION_MINOR 18
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \