diff options
author | Steve Lhomme <robux4@gmail.com> | 2017-04-03 10:29:46 +0300 |
---|---|---|
committer | James Almer <jamrial@gmail.com> | 2017-04-06 17:38:15 +0300 |
commit | 157e57a1810c6783779b046c1817a4f9737b2cb3 (patch) | |
tree | 8aa1bc2141c029a3381d894ada77ccee16fd29da | |
parent | b378f5bd640177801681479ddb9fe80ececd9cf8 (diff) |
lavc: Add Content Light Level side metadata found in HEVC
These data are necessary when transmitting HDR over HDMI.
Signed-off-by: James Almer <jamrial@gmail.com>
-rw-r--r-- | doc/APIchanges | 3 | ||||
-rw-r--r-- | libavcodec/avcodec.h | 7 | ||||
-rw-r--r-- | libavcodec/avpacket.c | 1 | ||||
-rw-r--r-- | libavcodec/hevc_sei.c | 15 | ||||
-rw-r--r-- | libavcodec/hevcdec.c | 18 | ||||
-rw-r--r-- | libavcodec/hevcdec.h | 5 | ||||
-rw-r--r-- | libavcodec/utils.c | 1 | ||||
-rw-r--r-- | libavcodec/version.h | 2 |
8 files changed, 51 insertions, 1 deletions
diff --git a/doc/APIchanges b/doc/APIchanges index e2e6c9067f..1aced2f6a4 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2015-08-28 API changes, most recent first: +2016-04-06 - xxxxxxx - lavc 57.92.100 - avcodec.h + Add AV_PKT_DATA_CONTENT_LIGHT_LEVEL packet side data. + 2016-04-06 - xxxxxxx - lavu 55.60.100 - mastering_display_metadata.h Add AV_FRAME_DATA_CONTENT_LIGHT_LEVEL value, av_content_light_metadata_alloc() and av_content_light_metadata_create_side_data() API, and AVContentLightMetadata diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index f6bd90baff..bffc169881 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -1584,6 +1584,13 @@ enum AVPacketSideDataType { * to the AVSphericalMapping structure. */ AV_PKT_DATA_SPHERICAL, + + /** + * Content light level (based on CTA-861.3). This metadata should be + * associated with a video stream and containts data in the form of the + * AVContentLightMetadata struct. + */ + AV_PKT_DATA_CONTENT_LIGHT_LEVEL, }; #define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c index e633245a62..4bf830bb8a 100644 --- a/libavcodec/avpacket.c +++ b/libavcodec/avpacket.c @@ -374,6 +374,7 @@ const char *av_packet_side_data_name(enum AVPacketSideDataType type) case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update"; case AV_PKT_DATA_MPEGTS_STREAM_ID: return "MPEGTS Stream ID"; case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata"; + case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata"; case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping"; } return NULL; diff --git a/libavcodec/hevc_sei.c b/libavcodec/hevc_sei.c index 8fc026cf1e..bb299d5a9f 100644 --- a/libavcodec/hevc_sei.c +++ b/libavcodec/hevc_sei.c @@ -102,6 +102,19 @@ static int decode_nal_sei_mastering_display_info(HEVCContext *s) return 0; } +static int decode_nal_sei_content_light_info(HEVCContext *s) +{ + GetBitContext *gb = &s->HEVClc->gb; + // Max and average light levels + s->max_content_light_level = get_bits_long(gb, 16); + s->max_pic_average_light_level = get_bits_long(gb, 16); + // As this SEI message comes before the first frame that references it, + // initialize the flag to 2 and decrement on IRAP access unit so it + // persists for the coded video sequence (e.g., between two IRAPs) + s-> sei_content_light_present = 2; + return 0; +} + static int decode_nal_sei_frame_packing_arrangement(HEVCContext *s) { GetBitContext *gb = &s->HEVClc->gb; @@ -304,6 +317,8 @@ static int decode_nal_sei_prefix(HEVCContext *s, int type, int size) } case SEI_TYPE_MASTERING_DISPLAY_INFO: return decode_nal_sei_mastering_display_info(s); + case SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO: + return decode_nal_sei_content_light_info(s); case SEI_TYPE_ACTIVE_PARAMETER_SETS: active_parameter_sets(s); av_log(s->avctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", type); diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index f9e8ff0c9f..af55416ad3 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -2644,6 +2644,24 @@ static int set_side_data(HEVCContext *s) "min_luminance=%f, max_luminance=%f\n", av_q2d(metadata->min_luminance), av_q2d(metadata->max_luminance)); } + // Decrement the mastering display flag when IRAP frame has no_rasl_output_flag=1 + // so the side data persists for the entire coded video sequence. + if (s->sei_content_light_present > 0 && + IS_IRAP(s) && s->no_rasl_output_flag) { + s->sei_content_light_present--; + } + if (s->sei_content_light_present) { + AVContentLightMetadata *metadata = + av_content_light_metadata_create_side_data(out); + if (!metadata) + return AVERROR(ENOMEM); + metadata->MaxCLL = s->max_content_light_level; + metadata->MaxFALL = s->max_pic_average_light_level; + + av_log(s->avctx, AV_LOG_DEBUG, "Content Light Level Metadata:\n"); + av_log(s->avctx, AV_LOG_DEBUG, "MaxCLL=%d, MaxFALL=%d\n", + metadata->MaxCLL, metadata->MaxFALL); + } if (s->a53_caption) { AVFrameSideData* sd = av_frame_new_side_data(out, diff --git a/libavcodec/hevcdec.h b/libavcodec/hevcdec.h index 0c7881286c..e5879a5c2b 100644 --- a/libavcodec/hevcdec.h +++ b/libavcodec/hevcdec.h @@ -596,6 +596,11 @@ typedef struct HEVCContext { uint32_t max_mastering_luminance; uint32_t min_mastering_luminance; + /* content light level */ + int sei_content_light_present; + uint16_t max_content_light_level; + uint16_t max_pic_average_light_level; + } HEVCContext; int ff_hevc_decode_nal_sei(HEVCContext *s); diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 0c6883686e..ff95ceac8b 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -771,6 +771,7 @@ int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame) { AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D }, { AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE }, { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA }, + { AV_PKT_DATA_CONTENT_LIGHT_LEVEL, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL }, }; if (pkt) { diff --git a/libavcodec/version.h b/libavcodec/version.h index fc8ca2dd97..cb238dc867 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -28,7 +28,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 57 -#define LIBAVCODEC_VERSION_MINOR 91 +#define LIBAVCODEC_VERSION_MINOR 92 #define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ |