Merge commit 'e1319aa1c1be9b64117c19170344fb78841dd67c'

* commit 'e1319aa1c1be9b64117c19170344fb78841dd67c':
  libx264: Add support for the MPEG2 encoder

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/libx264.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>

configure

@@ -1920,6 +1920,7 @@ CONFIG_EXTRA="
     imdct15
     intrax8
     jpegtables
+    libx262
     lgplv3
     llauddsp
     llviddsp
@@ -2504,6 +2505,7 @@ libvpx_vp9_encoder_deps="libvpx"
 libwavpack_encoder_deps="libwavpack"
 libwebp_encoder_deps="libwebp"
 libwebp_anim_encoder_deps="libwebp"
+libx262_encoder_deps="libx262"
 libx264_encoder_deps="libx264"
 libx264rgb_encoder_deps="libx264"
 libx264rgb_encoder_select="libx264_encoder"
@@ -5228,7 +5230,9 @@ enabled libx264           && { use_pkg_config x264 "stdint.h x264.h" x264_encode
                                { require libx264 x264.h x264_encoder_encode -lx264 &&
                                  warn "using libx264 without pkg-config"; } } &&
                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
-                               die "ERROR: libx264 must be installed and version must be >= 0.118."; }
+                               die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
+                             { check_cpp_condition x264.h "X264_MPEG2" &&
+                               enable libx262; }
 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
                                die "ERROR: libx265 version must be >= 57."; }

libavcodec/Makefile

@@ -804,6 +804,7 @@ OBJS-$(CONFIG_LIBVPX_VP9_ENCODER)         += libvpxenc.o libvpx.o
 OBJS-$(CONFIG_LIBWAVPACK_ENCODER)         += libwavpackenc.o
 OBJS-$(CONFIG_LIBWEBP_ENCODER)            += libwebpenc_common.o libwebpenc.o
 OBJS-$(CONFIG_LIBWEBP_ANIM_ENCODER)       += libwebpenc_common.o libwebpenc_animencoder.o
+OBJS-$(CONFIG_LIBX262_ENCODER)            += libx264.o
 OBJS-$(CONFIG_LIBX264_ENCODER)            += libx264.o
 OBJS-$(CONFIG_LIBX265_ENCODER)            += libx265.o
 OBJS-$(CONFIG_LIBXAVS_ENCODER)            += libxavs.o

libavcodec/allcodecs.c

@@ -550,6 +550,7 @@ void avcodec_register_all(void)
     REGISTER_ENCODER(LIBWAVPACK,        libwavpack);
     REGISTER_ENCODER(LIBWEBP_ANIM,      libwebp_anim);  /* preferred over libwebp */
     REGISTER_ENCODER(LIBWEBP,           libwebp);
+    REGISTER_ENCODER(LIBX262,           libx262);
     REGISTER_ENCODER(LIBX264,           libx264);
     REGISTER_ENCODER(LIBX264RGB,        libx264rgb);
     REGISTER_ENCODER(LIBX265,           libx265);

libavcodec/libx264.c

@@ -384,7 +384,14 @@ static av_cold int X264_init(AVCodecContext *avctx)
     if (avctx->global_quality > 0)
         av_log(avctx, AV_LOG_WARNING, "-qscale is ignored, -crf is recommended.\n");
 
+#if CONFIG_LIBX262_ENCODER
+    if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
+        x4->params.b_mpeg2 = 1;
+        x264_param_default_mpeg2(&x4->params);
+    } else
+#else
     x264_param_default(&x4->params);
+#endif
 
     x4->params.b_deblocking_filter         = avctx->flags & CODEC_FLAG_LOOP_FILTER;
 
@@ -842,20 +849,6 @@ static const AVOption options[] = {
     { NULL },
 };
 
-static const AVClass x264_class = {
-    .class_name = "libx264",
-    .item_name  = av_default_item_name,
-    .option     = options,
-    .version    = LIBAVUTIL_VERSION_INT,
-};
-
-static const AVClass rgbclass = {
-    .class_name = "libx264rgb",
-    .item_name  = av_default_item_name,
-    .option     = options,
-    .version    = LIBAVUTIL_VERSION_INT,
-};
-
 static const AVCodecDefault x264_defaults[] = {
     { "b",                "0" },
     { "bf",               "-1" },
@@ -887,6 +880,21 @@ static const AVCodecDefault x264_defaults[] = {
     { NULL },
 };
 
+#if CONFIG_LIBX264_ENCODER
+static const AVClass x264_class = {
+    .class_name = "libx264",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVClass rgbclass = {
+    .class_name = "libx264rgb",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
 AVCodec ff_libx264_encoder = {
     .name             = "libx264",
     .long_name        = NULL_IF_CONFIG_SMALL("libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
@@ -918,3 +926,30 @@ AVCodec ff_libx264rgb_encoder = {
     .defaults       = x264_defaults,
     .pix_fmts       = pix_fmts_8bit_rgb,
 };
+#endif
+
+#if CONFIG_LIBX262_ENCODER
+static const AVClass X262_class = {
+    .class_name = "libx262",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_libx262_encoder = {
+    .name             = "libx262",
+    .long_name        = NULL_IF_CONFIG_SMALL("libx262 MPEG2VIDEO"),
+    .type             = AVMEDIA_TYPE_VIDEO,
+    .id               = AV_CODEC_ID_MPEG2VIDEO,
+    .priv_data_size   = sizeof(X264Context),
+    .init             = X264_init,
+    .encode2          = X264_frame,
+    .close            = X264_close,
+    .capabilities     = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
+    .priv_class       = &X262_class,
+    .defaults         = x264_defaults,
+    .pix_fmts         = pix_fmts_8bit,
+    .caps_internal    = FF_CODEC_CAP_INIT_THREADSAFE |
+                        FF_CODEC_CAP_INIT_CLEANUP,
+};
+#endif