From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id DB4464912A for ; Sun, 4 Feb 2024 11:17:18 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6E88368D16E; Sun, 4 Feb 2024 13:17:05 +0200 (EET) Received: from a27-228.smtp-out.us-west-2.amazonses.com (a27-228.smtp-out.us-west-2.amazonses.com [54.240.27.228]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 2653468D0B4 for ; Sun, 4 Feb 2024 13:16:57 +0200 (EET) To: =?UTF-8?Q?ffmpeg-devel=40ffmpeg=2Eorg?= Date: Sun, 4 Feb 2024 11:16:54 +0000 Mime-Version: 1.0 In-Reply-To: <20240204111648.76522-1-cosmin@cosmin.at> References: <20240204111648.76522-1-cosmin@cosmin.at> <20240204111648.76522-3-cosmin@cosmin.at> X-Mailer: Amazon WorkMail Thread-Index: AQHaV1umhAVS4Ql1QiKtkX3XbpMnvgAAAH+S Thread-Topic: [PATCH v3 2/3] avformat/mov: add support for 'amve' ambient viewing environment box. As defined in ISOBMFF (ISO/IEC 14496-12) document. X-Original-Mailer: git-send-email 2.42.1 X-Wm-Sent-Timestamp: 1707045413 Message-ID: <0101018d73d5e685-207b272c-3016-4e33-8be9-eb8af0469e93-000000@us-west-2.amazonses.com> Feedback-ID: 1.us-west-2.An468LAV0jCjQDrDLvlZjeAthld7qrhZr+vow8irkvU=:AmazonSES X-SES-Outgoing: 2024.02.04-54.240.27.228 Subject: [FFmpeg-devel] [PATCH v3 2/3] avformat/mov: add support for 'amve' ambient viewing environment box. As defined in ISOBMFF (ISO/IEC 14496-12) document. 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: , From: Cosmin Stejerean via ffmpeg-devel Reply-To: FFmpeg development discussions and patches Cc: =?UTF-8?Q?Cosmin_Stejerean?= 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: Damiano Galassi Co-Authored-By: Cosmin Stejerean --- libavformat/dump.c | 15 +++++++++++++++ libavformat/isom.h | 3 +++ libavformat/mov.c | 35 +++++++++++++++++++++++++++++++++++ libavformat/movenc.c | 30 ++++++++++++++++++++++++++++++ 4 files changed, 83 insertions(+) diff --git a/libavformat/dump.c b/libavformat/dump.c index aff51b43f6..add38914f2 100644 --- a/libavformat/dump.c +++ b/libavformat/dump.c @@ -28,6 +28,7 @@ #include "libavutil/intreadwrite.h" #include "libavutil/log.h" #include "libavutil/mastering_display_metadata.h" +#include "libavutil/ambient_viewing_environment.h" #include "libavutil/dovi_meta.h" #include "libavutil/mathematics.h" #include "libavutil/opt.h" @@ -379,6 +380,17 @@ static void dump_content_light_metadata(void *ctx, const AVPacketSideData *sd, metadata->MaxCLL, metadata->MaxFALL); } +static void dump_ambient_viewing_environment_metadata(void *ctx, const AVPacketSideData *sd) +{ + const AVAmbientViewingEnvironment *ambient = + (const AVAmbientViewingEnvironment *)sd->data; + av_log(ctx, AV_LOG_INFO, "Ambient Viewing Environment, " + "ambient_illuminance=%f, ambient_light_x=%f, ambient_light_y=%f", + av_q2d(ambient->ambient_illuminance), + av_q2d(ambient->ambient_light_x), + av_q2d(ambient->ambient_light_y)); +} + static void dump_spherical(void *ctx, const AVCodecParameters *par, const AVPacketSideData *sd, int log_level) { @@ -513,6 +525,9 @@ static void dump_sidedata(void *ctx, const AVStream *st, const char *indent, av_log(ctx, log_level, "SMPTE ST 12-1:2014: "); dump_s12m_timecode(ctx, st, sd, log_level); break; + case AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT: + dump_ambient_viewing_environment_metadata(ctx, sd); + break; default: av_log(ctx, log_level, "unknown side data type %d " "(%"SIZE_SPECIFIER" bytes)", sd->type, sd->size); diff --git a/libavformat/isom.h b/libavformat/isom.h index 77221d06e4..a4cca4c798 100644 --- a/libavformat/isom.h +++ b/libavformat/isom.h @@ -29,6 +29,7 @@ #include "libavutil/encryption_info.h" #include "libavutil/mastering_display_metadata.h" +#include "libavutil/ambient_viewing_environment.h" #include "libavutil/spherical.h" #include "libavutil/stereo3d.h" @@ -249,6 +250,8 @@ typedef struct MOVStreamContext { AVMasteringDisplayMetadata *mastering; AVContentLightMetadata *coll; size_t coll_size; + AVAmbientViewingEnvironment *ambient; + size_t ambient_size; uint32_t format; diff --git a/libavformat/mov.c b/libavformat/mov.c index 5fae777adb..42b0135987 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -6039,6 +6039,31 @@ static int mov_read_clli(MOVContext *c, AVIOContext *pb, MOVAtom atom) return 0; } +static int mov_read_amve(MOVContext *c, AVIOContext *pb, MOVAtom atom) +{ + MOVStreamContext *sc; + const int illuminance_den = 10000; + const int ambient_den = 50000; + if (c->fc->nb_streams < 1) + return AVERROR_INVALIDDATA; + sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data; + if (atom.size < 6) { + av_log(c->fc, AV_LOG_ERROR, "Empty Ambient Viewing Environment Info box\n"); + return AVERROR_INVALIDDATA; + } + if (sc->ambient){ + av_log(c->fc, AV_LOG_WARNING, "Ignoring duplicate AMVE\n"); + return 0; + } + sc->ambient = av_ambient_viewing_environment_alloc(&sc->ambient_size); + if (!sc->ambient) + return AVERROR(ENOMEM); + sc->ambient->ambient_illuminance = av_make_q(avio_rb32(pb), illuminance_den); + sc->ambient->ambient_light_x = av_make_q(avio_rb16(pb), ambient_den); + sc->ambient->ambient_light_y = av_make_q(avio_rb16(pb), ambient_den); + return 0; +} + static int mov_read_st3d(MOVContext *c, AVIOContext *pb, MOVAtom atom) { AVStream *st; @@ -8215,6 +8240,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = { { MKTAG('i','s','p','e'), mov_read_ispe }, { MKTAG('i','p','r','p'), mov_read_iprp }, { MKTAG('i','i','n','f'), mov_read_iinf }, +{ MKTAG('a','m','v','e'), mov_read_amve }, /* ambient viewing environment box */ { 0, NULL } }; @@ -8680,6 +8706,7 @@ static void mov_free_stream_context(AVFormatContext *s, AVStream *st) av_freep(&sc->spherical); av_freep(&sc->mastering); av_freep(&sc->coll); + av_freep(&sc->ambient); } static int mov_read_close(AVFormatContext *s) @@ -9072,6 +9099,14 @@ static int mov_read_header(AVFormatContext *s) sc->coll = NULL; } + if (sc->ambient) { + if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data, + AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT, + (uint8_t *) sc->ambient, sc->ambient_size, 0)) + return AVERROR(ENOMEM); + + sc->ambient = NULL; + } break; } } diff --git a/libavformat/movenc.c b/libavformat/movenc.c index b724bd5ebc..c2410e01ce 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -2244,6 +2244,35 @@ static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track) return 32; } +static int mov_write_amve_tag(AVIOContext *pb, MOVTrack *track) +{ + const int illuminance_den = 10000; + const int ambient_den = 50000; + const AVPacketSideData *side_data; + const AVAmbientViewingEnvironment *ambient; + + + side_data = av_packet_side_data_get(track->st->codecpar->coded_side_data, + track->st->codecpar->nb_coded_side_data, + AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT); + + if (!side_data || !side_data->data) { + return 0; + } + + ambient = (const AVAmbientViewingEnvironment*)side_data->data; + if (!ambient || !ambient->ambient_illuminance.num) { + return 0; + } + + avio_wb32(pb, 16); // size + ffio_wfourcc(pb, "amve"); + avio_wb32(pb, rescale_mdcv(ambient->ambient_illuminance, illuminance_den)); + avio_wb16(pb, rescale_mdcv(ambient->ambient_light_x, ambient_den)); + avio_wb16(pb, rescale_mdcv(ambient->ambient_light_y, ambient_den)); + return 16; +} + static void find_compressor(char * compressor_name, int len, MOVTrack *track) { AVDictionaryEntry *encoder; @@ -2457,6 +2486,7 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex if (track->mode == MODE_MOV || track->mode == MODE_MP4) { mov_write_clli_tag(pb, track); mov_write_mdcv_tag(pb, track); + mov_write_amve_tag(pb, track); } if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) { -- 2.42.1 _______________________________________________ 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".