mmaldec: add vc1 decoding support

configure

@@ -2516,6 +2516,9 @@ vc1_vdpau_decoder_deps="vdpau"
 vc1_vdpau_decoder_select="vc1_decoder"
 vc1_vdpau_hwaccel_deps="vdpau"
 vc1_vdpau_hwaccel_select="vc1_decoder"
+vc1_mmal_decoder_deps="mmal"
+vc1_mmal_hwaccel_deps="mmal"
+vc1_mmal_decoder_select="vc1_decoder"
 vc1_qsv_hwaccel_deps="libmfx"
 vc1_qsv_hwaccel_select="qsvdec_vc1"
 wmv3_crystalhd_decoder_select="crystalhd"

libavcodec/Makefile

@@ -534,6 +534,7 @@ OBJS-$(CONFIG_VC1_DECODER)             += vc1dec.o vc1_block.o vc1_loopfilter.o
                                           vc1dsp.o \
                                           msmpeg4dec.o msmpeg4.o msmpeg4data.o \
                                           wmv2dsp.o
+OBJS-$(CONFIG_VC1_MMAL_DECODER)        += mmaldec.o
 OBJS-$(CONFIG_VC1_QSV_DECODER)         += qsvdec_vc1.o
 OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdaudio.o

libavcodec/allcodecs.c

@@ -108,6 +108,7 @@ void avcodec_register_all(void)
     REGISTER_HWACCEL(VC1_DXVA2,         vc1_dxva2);
     REGISTER_HWACCEL(VC1_VAAPI,         vc1_vaapi);
     REGISTER_HWACCEL(VC1_VDPAU,         vc1_vdpau);
+    REGISTER_HWACCEL(VC1_MMAL,          vc1_mmal);
     REGISTER_HWACCEL(VC1_QSV,           vc1_qsv);
     REGISTER_HWACCEL(WMV3_D3D11VA,      wmv3_d3d11va);
     REGISTER_HWACCEL(WMV3_DXVA2,        wmv3_dxva2);
@@ -326,6 +327,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(VC1_VDPAU,         vc1_vdpau);
 #endif
     REGISTER_DECODER(VC1IMAGE,          vc1image);
+    REGISTER_DECODER(VC1_MMAL,          vc1_mmal);
     REGISTER_DECODER(VC1_QSV,           vc1_qsv);
     REGISTER_DECODER(VCR1,              vcr1);
     REGISTER_DECODER(VMDVIDEO,          vmdvideo);

libavcodec/mmaldec.c

@@ -355,6 +355,10 @@ static av_cold int ffmmal_init_decoder(AVCodecContext *avctx)
             format_in->encoding = MMAL_ENCODING_MP2V;
             av_log(avctx, AV_LOG_DEBUG, "Use MMAL MP2V encoding\n");
             break;
+        case AV_CODEC_ID_VC1:
+            format_in->encoding = MMAL_ENCODING_WVC1;
+            av_log(avctx, AV_LOG_DEBUG, "Use MMAL WVC1 encoding\n");
+            break;
         case AV_CODEC_ID_H264:
         default:
             format_in->encoding = MMAL_ENCODING_H264;
@@ -783,6 +787,13 @@ AVHWAccel ff_mpeg2_mmal_hwaccel = {
     .pix_fmt    = AV_PIX_FMT_MMAL,
 };
 
+AVHWAccel ff_vc1_mmal_hwaccel = {
+    .name       = "vc1_mmal",
+    .type       = AVMEDIA_TYPE_VIDEO,
+    .id         = AV_CODEC_ID_VC1,
+    .pix_fmt    = AV_PIX_FMT_MMAL,
+};
+
 static const AVOption options[]={
     {"extra_buffers", "extra buffers", offsetof(MMALDecodeContext, extra_buffers), AV_OPT_TYPE_INT, {.i64 = 10}, 0, 256, 0},
     {NULL}
@@ -817,3 +828,4 @@ static const AVOption options[]={
 
 FFMMAL_DEC(h264, AV_CODEC_ID_H264)
 FFMMAL_DEC(mpeg2, AV_CODEC_ID_MPEG2VIDEO)
+FFMMAL_DEC(vc1, AV_CODEC_ID_VC1)