[FFmpeg-cvslog] avcodec/h264: Greenmetadata SEI parsing
Nicolas DEROUINEAU
git at videolan.org
Tue Jun 30 23:23:14 CEST 2015
ffmpeg | branch: master | Nicolas DEROUINEAU <nicolas.derouineau at vitec.com> | Tue Jun 30 15:17:59 2015 +0200| [04a68f43488c2b6796f1e24c87122f814b785e88] | committer: Michael Niedermayer
avcodec/h264: Greenmetadata SEI parsing
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=04a68f43488c2b6796f1e24c87122f814b785e88
---
doc/codecs.texi | 3 +++
libavcodec/avcodec.h | 1 +
libavcodec/h264.h | 21 +++++++++++++++
libavcodec/h264_sei.c | 63 ++++++++++++++++++++++++++++++++++++++++++++
libavcodec/options_table.h | 1 +
5 files changed, 89 insertions(+)
diff --git a/doc/codecs.texi b/doc/codecs.texi
index 3c035a5..a2aa503 100644
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@@ -475,6 +475,9 @@ per-block quantization parameter (QP)
motion vector
@item dct_coeff
+ at item green_metadata
+display complexity metadata for the upcoming frame, GoP or for a given duration.
+
@item skip
@item startcode
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index ddbf0a3..6391cf3 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2616,6 +2616,7 @@ typedef struct AVCodecContext {
#endif
#define FF_DEBUG_BUFFERS 0x00008000
#define FF_DEBUG_THREADS 0x00010000
+#define FF_DEBUG_GREEN_MD 0x00800000
#define FF_DEBUG_NOMC 0x01000000
#if FF_API_DEBUG_MV
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index f0d569b..edecc4b 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -137,6 +137,7 @@ typedef enum {
SEI_TYPE_RECOVERY_POINT = 6, ///< recovery point (frame # to decoder sync)
SEI_TYPE_FRAME_PACKING = 45, ///< frame packing arrangement
SEI_TYPE_DISPLAY_ORIENTATION = 47, ///< display orientation
+ SEI_TYPE_GREEN_METADATA = 56 ///< GreenMPEG information
} SEI_Type;
/**
@@ -268,6 +269,22 @@ typedef struct FPA {
} FPA;
/**
+ * Green MetaData Information Type
+ */
+typedef struct GreenMetaData {
+ uint8_t green_metadata_type;
+ uint8_t period_type;
+ uint16_t num_seconds;
+ uint16_t num_pictures;
+ uint8_t percent_non_zero_macroblocks;
+ uint8_t percent_intra_coded_macroblocks;
+ uint8_t percent_six_tap_filtering;
+ uint8_t percent_alpha_point_deblocking_instance;
+ uint8_t xsd_metric_type;
+ uint16_t xsd_metric_value;
+} GreenMetaData;
+
+/**
* Memory management control operation opcode.
*/
typedef enum MMCOOpcode {
@@ -817,6 +834,10 @@ typedef struct H264Context {
/* Motion Estimation */
qpel_mc_func (*qpel_put)[16];
qpel_mc_func (*qpel_avg)[16];
+
+ /*Green Metadata */
+ GreenMetaData sei_green_metadata;
+
} H264Context;
extern const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM + 1]; ///< One chroma qp table for each possible bit depth (8-14).
diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c
index 2bce67a..569db4e 100644
--- a/libavcodec/h264_sei.c
+++ b/libavcodec/h264_sei.c
@@ -294,6 +294,66 @@ static int decode_display_orientation(H264Context *h)
return 0;
}
+static int decode_GreenMetadata(H264Context *h)
+{
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "Green Metadata Info SEI message\n");
+
+ h->sei_green_metadata.green_metadata_type=get_bits(&h->gb, 8);
+
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "green_metadata_type = %d\n",
+ h->sei_green_metadata.green_metadata_type);
+
+ if (h->sei_green_metadata.green_metadata_type==0){
+ h->sei_green_metadata.period_type=get_bits(&h->gb, 8);
+
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "green_metadata_period_type = %d\n",
+ h->sei_green_metadata.period_type);
+
+ if (h->sei_green_metadata.green_metadata_type==2){
+ h->sei_green_metadata.num_seconds = get_bits(&h->gb, 16);
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "green_metadata_num_seconds = %d\n",
+ h->sei_green_metadata.num_seconds);
+ }
+ else if (h->sei_green_metadata.period_type==3){
+ h->sei_green_metadata.num_pictures = get_bits(&h->gb, 16);
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "green_metadata_num_pictures = %d\n",
+ h->sei_green_metadata.num_pictures);
+ }
+
+ h->sei_green_metadata.percent_non_zero_macroblocks=get_bits(&h->gb, 8);
+ h->sei_green_metadata.percent_intra_coded_macroblocks=get_bits(&h->gb, 8);
+ h->sei_green_metadata.percent_six_tap_filtering=get_bits(&h->gb, 8);
+ h->sei_green_metadata.percent_alpha_point_deblocking_instance=get_bits(&h->gb, 8);
+
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "SEI GREEN Complexity Metrics = %f %f %f %f\n",
+ (float)h->sei_green_metadata.percent_non_zero_macroblocks/255,
+ (float)h->sei_green_metadata.percent_intra_coded_macroblocks/255,
+ (float)h->sei_green_metadata.percent_six_tap_filtering/255,
+ (float)h->sei_green_metadata.percent_alpha_point_deblocking_instance/255);
+
+ }else if( h->sei_green_metadata.green_metadata_type==1){
+ h->sei_green_metadata.xsd_metric_type=get_bits(&h->gb, 8);
+ h->sei_green_metadata.xsd_metric_value=get_bits(&h->gb, 16);
+
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "xsd_metric_type = %d\n",
+ h->sei_green_metadata.xsd_metric_type);
+ if ( h->sei_green_metadata.xsd_metric_type==0){
+ if (h->avctx->debug & FF_DEBUG_GREEN_MD)
+ av_log(h->avctx, AV_LOG_DEBUG, "xsd_metric_value = %f\n",
+ (float)h->sei_green_metadata.xsd_metric_value/100);
+ }
+ }
+
+ return 0;
+}
+
int ff_h264_decode_sei(H264Context *h)
{
while (get_bits_left(&h->gb) > 16 && show_bits(&h->gb, 16)) {
@@ -346,6 +406,9 @@ int ff_h264_decode_sei(H264Context *h)
case SEI_TYPE_DISPLAY_ORIENTATION:
ret = decode_display_orientation(h);
break;
+ case SEI_TYPE_GREEN_METADATA:
+ ret = decode_GreenMetadata(h);
+ break;
default:
av_log(h->avctx, AV_LOG_DEBUG, "unknown SEI type %d\n", type);
}
diff --git a/libavcodec/options_table.h b/libavcodec/options_table.h
index a906864..76ae81f 100644
--- a/libavcodec/options_table.h
+++ b/libavcodec/options_table.h
@@ -253,6 +253,7 @@ static const AVOption avcodec_options[] = {
{"mv", "motion vector", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_MV }, INT_MIN, INT_MAX, V|D, "debug"},
#endif
{"dct_coeff", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_DCT_COEFF }, INT_MIN, INT_MAX, V|D, "debug"},
+{"green_metadata", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_GREEN_MD }, INT_MIN, INT_MAX, V|D, "debug"},
{"skip", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_SKIP }, INT_MIN, INT_MAX, V|D, "debug"},
{"startcode", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DEBUG_STARTCODE }, INT_MIN, INT_MAX, V|D, "debug"},
#if FF_API_UNUSED_MEMBERS
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