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Mon, 28 Mar 2022 05:41:17 -0700 (PDT) From: lance.lmwang@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Mon, 28 Mar 2022 20:41:09 +0800 Message-Id: <1648471271-22016-2-git-send-email-lance.lmwang@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1648471271-22016-1-git-send-email-lance.lmwang@gmail.com> References: <1648423513-21261-1-git-send-email-lance.lmwang@gmail.com> <1648471271-22016-1-git-send-email-lance.lmwang@gmail.com> Subject: [FFmpeg-devel] [PATCH v2 2/4] avcodec: add support for hevc ambient viewing environment SEI message X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Limin Wang MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: From: Limin Wang Signed-off-by: Limin Wang --- libavcodec/hevc_sei.c | 19 +++++++++++++++++++ libavcodec/hevc_sei.h | 8 ++++++++ libavcodec/hevcdec.c | 10 ++++++++++ tests/ref/fate/hevc-dv-rpu | 6 ++++++ 4 files changed, 43 insertions(+) diff --git a/libavcodec/hevc_sei.c b/libavcodec/hevc_sei.c index ec3036f..d94df4e 100644 --- a/libavcodec/hevc_sei.c +++ b/libavcodec/hevc_sei.c @@ -497,6 +497,23 @@ static int decode_film_grain_characteristics(HEVCSEIFilmGrainCharacteristics *h, return 0; } +static int decode_ambient_viewing_env(HEVCSEIAmbientViewingEnvironment *s, GetBitContext *gb, int size) +{ + if (size < 8) + return AVERROR_INVALIDDATA; + + s->ambient_illuminance = get_bits(gb, 32); + s->ambient_light_x = get_bits(gb, 16); + s->ambient_light_y = get_bits(gb, 16); + size -= 8; + + s->present = 1; + + skip_bits_long(gb, 8 * size); + return 0; +} + + static int decode_nal_sei_prefix(GetBitContext *gb, void *logctx, HEVCSEI *s, const HEVCParamSets *ps, int type, int size) { @@ -525,6 +542,8 @@ static int decode_nal_sei_prefix(GetBitContext *gb, void *logctx, HEVCSEI *s, return decode_nal_sei_timecode(&s->timecode, gb); case SEI_TYPE_FILM_GRAIN_CHARACTERISTICS: return decode_film_grain_characteristics(&s->film_grain_characteristics, gb); + case SEI_TYPE_AMBIENT_VIEWING_ENVIRONMENT: + return decode_ambient_viewing_env(&s->ambient_viewing_env, gb, size); default: av_log(logctx, AV_LOG_DEBUG, "Skipped PREFIX SEI %d\n", type); skip_bits_long(gb, 8 * size); diff --git a/libavcodec/hevc_sei.h b/libavcodec/hevc_sei.h index f198402..c7623f5 100644 --- a/libavcodec/hevc_sei.h +++ b/libavcodec/hevc_sei.h @@ -134,6 +134,13 @@ typedef struct HEVCSEIFilmGrainCharacteristics { int persistence_flag; } HEVCSEIFilmGrainCharacteristics; +typedef struct HEVCSEIAmbientViewingEnvironment { + int present; + uint32_t ambient_illuminance; + uint16_t ambient_light_x; + uint16_t ambient_light_y; +} HEVCSEIAmbientViewingEnvironment; + typedef struct HEVCSEI { HEVCSEIPictureHash picture_hash; HEVCSEIFramePacking frame_packing; @@ -149,6 +156,7 @@ typedef struct HEVCSEI { HEVCSEIAlternativeTransfer alternative_transfer; HEVCSEITimeCode timecode; HEVCSEIFilmGrainCharacteristics film_grain_characteristics; + HEVCSEIAmbientViewingEnvironment ambient_viewing_env; } HEVCSEI; struct HEVCParamSets; diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index 09c07ac..13c6642 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -2998,6 +2998,15 @@ static int set_side_data(HEVCContext *s) } } + if (s->sei.ambient_viewing_env.present > 0) { + AVAmbientViewingEnvMetadata *metadata = av_ambient_viewing_env_metadata_create_side_data(out); + if (!metadata) + return AVERROR(ENOMEM); + metadata->ambient_illuminance = s->sei.ambient_viewing_env.ambient_illuminance; + metadata->ambient_light_x = s->sei.ambient_viewing_env.ambient_light_x; + metadata->ambient_light_y = s->sei.ambient_viewing_env.ambient_light_y; + } + return 0; } @@ -3800,6 +3809,7 @@ static int hevc_update_thread_context(AVCodecContext *dst, s->sei.mastering_display = s0->sei.mastering_display; s->sei.content_light = s0->sei.content_light; s->sei.alternative_transfer = s0->sei.alternative_transfer; + s->sei.ambient_viewing_env = s0->sei.ambient_viewing_env; ret = export_stream_params_from_sei(s); if (ret < 0) diff --git a/tests/ref/fate/hevc-dv-rpu b/tests/ref/fate/hevc-dv-rpu index 1980ab1..6879f71 100644 --- a/tests/ref/fate/hevc-dv-rpu +++ b/tests/ref/fate/hevc-dv-rpu @@ -117,6 +117,9 @@ source_min_pq=0 source_max_pq=3079 source_diagonal=42 [/SIDE_DATA] +[SIDE_DATA] +side_data_type=Ambient Viewing Environment +[/SIDE_DATA] [/FRAME] [FRAME] [SIDE_DATA] @@ -234,4 +237,7 @@ source_min_pq=0 source_max_pq=3079 source_diagonal=42 [/SIDE_DATA] +[SIDE_DATA] +side_data_type=Ambient Viewing Environment +[/SIDE_DATA] [/FRAME] -- 1.8.3.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".