Add mpeg2 hardware decoding support via Android's MediaCodec api.

Signed-off-by: NZhang Rui <bbcallen@gmail.com>

ijkmedia/ijkplayer/android/pipeline/ffpipeline_android.c

@@ -69,7 +69,7 @@ static IJKFF_Pipenode *func_open_video_decoder(IJKFF_Pipeline *pipeline, FFPlaye
     IJKFF_Pipeline_Opaque *opaque = pipeline->opaque;
     IJKFF_Pipenode        *node = NULL;
 
-    if (ffp->mediacodec_all_videos || ffp->mediacodec_avc || ffp->mediacodec_hevc)
+    if (ffp->mediacodec_all_videos || ffp->mediacodec_avc || ffp->mediacodec_hevc || ffp->mediacodec_mpeg2)
         node = ffpipenode_create_video_decoder_from_android_mediacodec(ffp, pipeline, opaque->weak_vout);
     if (!node) {
         node = ffpipenode_create_video_decoder_from_ffplay(ffp);

ijkmedia/ijkplayer/android/pipeline/ffpipenode_android_mediacodec_vdec.c

@@ -1007,6 +1007,16 @@ IJKFF_Pipenode *ffpipenode_create_video_decoder_from_android_mediacodec(FFPlayer
         opaque->mcc.profile = opaque->avctx->profile;
         opaque->mcc.level   = opaque->avctx->level;
         break;
+    case AV_CODEC_ID_MPEG2VIDEO:
+        if (!ffp->mediacodec_mpeg2 && !ffp->mediacodec_all_videos) {
+            ALOGE("%s: MediaCodec/MPEG2VIDEO is disabled. codec_id:%d \n", __func__, opaque->avctx->codec_id);
+            goto fail;
+        }
+        strcpy(opaque->mcc.mime_type, SDL_AMIME_VIDEO_MPEG2VIDEO);
+        opaque->mcc.profile = opaque->avctx->profile;
+        opaque->mcc.level   = opaque->avctx->level;
+        break;
+
     default:
         ALOGE("%s:create: not H264 or H265/HEVC, codec_id:%d \n", __func__, opaque->avctx->codec_id);
         goto fail;

ijkmedia/ijkplayer/ff_ffplay_def.h

@@ -609,6 +609,7 @@ typedef struct FFPlayer {
     int mediacodec_all_videos;
     int mediacodec_avc;
     int mediacodec_hevc;
+    int mediacodec_mpeg2;
     int mediacodec_auto_rotate;
 
     int opensles;
@@ -720,6 +721,7 @@ inline static void ffp_reset_internal(FFPlayer *ffp)
     ffp->mediacodec_all_videos          = 0; // option
     ffp->mediacodec_avc                 = 0; // option
     ffp->mediacodec_hevc                = 0; // option
+    ffp->mediacodec_mpeg2               = 0; // option
     ffp->mediacodec_auto_rotate         = 0; // option
 
     ffp->opensles                       = 0; // option

ijkmedia/ijkplayer/ff_ffplay_options.h

@@ -153,7 +153,8 @@ static const AVOption ffp_context_options[] = {
         OPTION_OFFSET(mediacodec_avc),          OPTION_INT(0, 0, 1) },
     { "mediacodec-hevc",                        "MediaCodec: enable HEVC",
         OPTION_OFFSET(mediacodec_hevc),         OPTION_INT(0, 0, 1) },
-
+    { "mediacodec-mpeg2",                       "MediaCodec: enable MPEG2VIDEO",
+        OPTION_OFFSET(mediacodec_mpeg2),         OPTION_INT(0, 0, 1) },
     { "opensles",                           "OpenSL ES: enable",
         OPTION_OFFSET(opensles),            OPTION_INT(0, 0, 1) },
     

ijkmedia/ijksdl/android/ijksdl_codec_android_mediadef.h

@@ -52,6 +52,7 @@ typedef enum sdl_amedia_status_t {
 #define SDL_AMIME_VIDEO_VP9         "video/x-vnd.on2.vp9"   //- VP9 video (i.e. video in .webm)
 #define SDL_AMIME_VIDEO_AVC         "video/avc"             //- H.264/AVC video
 #define SDL_AMIME_VIDEO_HEVC        "video/hevc"            //- H.265/HEVC video
+#define SDL_AMIME_VIDEO_MPEG2VIDEO  "video/mpeg2"           //- H.265/HEVC video
 #define SDL_AMIME_VIDEO_MPEG4       "video/mp4v-es"         //- MPEG4 video
 #define SDL_AMIME_VIDEO_H264        "video/3gpp"            //- H.263 video
 #define SDL_AMIME_AUDIO_AMR_NB      "audio/3gpp"            //- AMR narrowband audio