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[190.225.105.197]) by smtp.gmail.com with ESMTPSA id r20-20020a170902c61400b001d91b608a9csm627159plr.279.2024.01.31.09.47.06 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jan 2024 09:47:07 -0800 (PST) From: James Almer To: ffmpeg-devel@ffmpeg.org Date: Wed, 31 Jan 2024 14:47:15 -0300 Message-ID: <20240131174718.17829-1-jamrial@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/4 v3] avformat/mov: ignore item boxes for animated heif 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 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: Fixes a regression since d9fed9df2a, where the single animated stream would be exported twice as two independent streams. Signed-off-by: James Almer --- libavformat/isom.h | 1 + libavformat/mov.c | 147 ++++++++++++++++++++++++++++++--------------- 2 files changed, 99 insertions(+), 49 deletions(-) diff --git a/libavformat/isom.h b/libavformat/isom.h index 2cf456fee1..21caaac256 100644 --- a/libavformat/isom.h +++ b/libavformat/isom.h @@ -280,6 +280,7 @@ typedef struct MOVContext { int64_t duration; ///< duration of the longest track int found_moov; ///< 'moov' atom has been found int found_iloc; ///< 'iloc' atom has been found + int found_iinf; ///< 'iinf' atom has been found int found_mdat; ///< 'mdat' atom has been found int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found int trak_index; ///< Index of the current 'trak' diff --git a/libavformat/mov.c b/libavformat/mov.c index cf931d4594..af95e1f662 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -81,6 +81,7 @@ typedef struct MOVParseTableEntry { static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom); static int mov_read_mfra(MOVContext *c, AVIOContext *f); +static void mov_free_stream_context(AVFormatContext *s, AVStream *st); static int64_t add_ctts_entry(MOVCtts** ctts_data, unsigned int* ctts_count, unsigned int* allocated_size, int count, int duration); @@ -4644,6 +4645,23 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom) MOVStreamContext *sc; int ret; + if (c->found_iinf) { + // * For animated heif, if the iinf box showed up before the moov + // box, we need to clear all the streams read in the former. + for (int i = c->heif_info_size - 1; i >= 0; i--) { + HEIFItem *item = &c->heif_info[i]; + + if (!item->st) + continue; + + mov_free_stream_context(c->fc, item->st); + ff_remove_stream(c->fc, item->st); + } + av_freep(&c->heif_info); + c->heif_info_size = 0; + c->found_iinf = c->found_iloc = 0; + } + st = avformat_new_stream(c->fc, NULL); if (!st) return AVERROR(ENOMEM); st->id = -1; @@ -7773,8 +7791,9 @@ static int mov_read_iloc(MOVContext *c, AVIOContext *pb, MOVAtom atom) uint64_t base_offset, extent_offset, extent_length; uint8_t value; - if (c->found_iloc) { - av_log(c->fc, AV_LOG_INFO, "Duplicate iloc box found\n"); + if (c->found_moov) { + // * For animated heif, we don't care about the iloc box as all the + // necessary information can be found in the moov box. return 0; } @@ -7896,6 +7915,16 @@ static int mov_read_iinf(MOVContext *c, AVIOContext *pb, MOVAtom atom) int entry_count; int version, ret; + if (c->found_iinf) { + av_log(c->fc, AV_LOG_WARNING, "Duplicate iinf box found\n"); + return 0; + } + if (c->found_moov) { + // * For animated heif, we don't care about the iinf box as all the + // necessary information can be found in the moov box. + return 0; + } + version = avio_r8(pb); avio_rb24(pb); // flags. entry_count = version ? avio_rb32(pb) : avio_rb16(pb); @@ -7919,6 +7948,7 @@ static int mov_read_iinf(MOVContext *c, AVIOContext *pb, MOVAtom atom) return ret; } + c->found_iinf = 1; return 0; } @@ -7932,6 +7962,13 @@ static int mov_read_iref(MOVContext *c, AVIOContext *pb, MOVAtom atom) static int mov_read_ispe(MOVContext *c, AVIOContext *pb, MOVAtom atom) { uint32_t width, height; + + if (c->found_moov) { + // * For animated heif, we don't care about the ispe box as all the + // necessary information can be found in the moov box. + return 0; + } + avio_r8(pb); /* version */ avio_rb24(pb); /* flags */ width = avio_rb32(pb); @@ -7966,6 +8003,12 @@ static int mov_read_iprp(MOVContext *c, AVIOContext *pb, MOVAtom atom) int version, flags; int ret; + if (c->found_moov) { + // * For animated heif, we don't care about the iprp box as all the + // necessary information can be found in the moov box. + return 0; + } + a.size = avio_rb32(pb); a.type = avio_rl32(pb); @@ -8587,6 +8630,58 @@ static void mov_free_encryption_index(MOVEncryptionIndex **index) { av_freep(index); } +static void mov_free_stream_context(AVFormatContext *s, AVStream *st) +{ + MOVStreamContext *sc = st->priv_data; + + if (!sc) + return; + + av_freep(&sc->ctts_data); + for (int i = 0; i < sc->drefs_count; i++) { + av_freep(&sc->drefs[i].path); + av_freep(&sc->drefs[i].dir); + } + av_freep(&sc->drefs); + + sc->drefs_count = 0; + + if (!sc->pb_is_copied) + ff_format_io_close(s, &sc->pb); + + sc->pb = NULL; + av_freep(&sc->chunk_offsets); + av_freep(&sc->stsc_data); + av_freep(&sc->sample_sizes); + av_freep(&sc->keyframes); + av_freep(&sc->stts_data); + av_freep(&sc->sdtp_data); + av_freep(&sc->stps_data); + av_freep(&sc->elst_data); + av_freep(&sc->rap_group); + av_freep(&sc->sync_group); + av_freep(&sc->sgpd_sync); + av_freep(&sc->sample_offsets); + av_freep(&sc->open_key_samples); + av_freep(&sc->display_matrix); + av_freep(&sc->index_ranges); + + if (sc->extradata) + for (int i = 0; i < sc->stsd_count; i++) + av_free(sc->extradata[i]); + av_freep(&sc->extradata); + av_freep(&sc->extradata_size); + + mov_free_encryption_index(&sc->cenc.encryption_index); + av_encryption_info_free(sc->cenc.default_encrypted_sample); + av_aes_ctr_free(sc->cenc.aes_ctr); + + av_freep(&sc->stereo3d); + av_freep(&sc->spherical); + av_freep(&sc->mastering); + av_freep(&sc->coll); +} + static int mov_read_close(AVFormatContext *s) { MOVContext *mov = s->priv_data; @@ -8594,54 +8689,8 @@ static int mov_read_close(AVFormatContext *s) for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; - MOVStreamContext *sc = st->priv_data; - - if (!sc) - continue; - - av_freep(&sc->ctts_data); - for (j = 0; j < sc->drefs_count; j++) { - av_freep(&sc->drefs[j].path); - av_freep(&sc->drefs[j].dir); - } - av_freep(&sc->drefs); - - sc->drefs_count = 0; - if (!sc->pb_is_copied) - ff_format_io_close(s, &sc->pb); - - sc->pb = NULL; - av_freep(&sc->chunk_offsets); - av_freep(&sc->stsc_data); - av_freep(&sc->sample_sizes); - av_freep(&sc->keyframes); - av_freep(&sc->stts_data); - av_freep(&sc->sdtp_data); - av_freep(&sc->stps_data); - av_freep(&sc->elst_data); - av_freep(&sc->rap_group); - av_freep(&sc->sync_group); - av_freep(&sc->sgpd_sync); - av_freep(&sc->sample_offsets); - av_freep(&sc->open_key_samples); - av_freep(&sc->display_matrix); - av_freep(&sc->index_ranges); - - if (sc->extradata) - for (j = 0; j < sc->stsd_count; j++) - av_free(sc->extradata[j]); - av_freep(&sc->extradata); - av_freep(&sc->extradata_size); - - mov_free_encryption_index(&sc->cenc.encryption_index); - av_encryption_info_free(sc->cenc.default_encrypted_sample); - av_aes_ctr_free(sc->cenc.aes_ctr); - - av_freep(&sc->stereo3d); - av_freep(&sc->spherical); - av_freep(&sc->mastering); - av_freep(&sc->coll); + mov_free_stream_context(s, st); } av_freep(&mov->dv_demux); -- 2.43.0 _______________________________________________ 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".