From patchwork Sun Jun 14 16:22:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul B Mahol X-Patchwork-Id: 20347 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id A332944909B for ; Sun, 14 Jun 2020 19:22:28 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 87D0C68B76D; Sun, 14 Jun 2020 19:22:28 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id C82AF68B71C for ; Sun, 14 Jun 2020 19:22:21 +0300 (EEST) Received: by mail-ed1-f50.google.com with SMTP id m21so9738246eds.13 for ; Sun, 14 Jun 2020 09:22:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=dnjOH/oL2/7ES0xDy2ExS7tYVSOa6jOjwMIb4VbJZPA=; b=qe/4Rc6fGsOdh05jWc5R0XV8JXwoz4kI+OBrdDZLliOCukLeV5nX6stIoPFNqFRE0/ C+K/+fkPtlaPUIKauHq3Dot79tMLNNA2Cgl0y6jcUMCKHUKyt+vn2s03SWbmHvfNrQPm vIq5R+grOqRjuGnuRwC5PAlb+5egV7zbiqsrSBVSVwErWT9LW2Mvpepc7ygPMp8JocEA dmkjPPP4myShwOEWQNFDz7d2/zADmSUrOZW6bp+ELB1oqlE28pgqd5YzuUT6t5pmgSF7 zNvrNRE7g1ABP7LTK2ok/J8KWgLBxBegiD66t1Fo97p5/x7ahrkzvBCBZyJsbBfth1+9 QOIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=dnjOH/oL2/7ES0xDy2ExS7tYVSOa6jOjwMIb4VbJZPA=; b=DwpK85KsXtE3SpbTyQpTvL0NkD6BLrHq3xe9DZV4EwaWPX4yiH9xL8Vetc9NoZtlYC 2Na1B2L/VkcDVbutoiRhGHMFZIUn9YnAeU9GFa0iNKEP8WhJbRH3CU877kWYdh3a9ubb 4vymjiPLa1D3FjmkZFwSJ8+n57hs4+ZecLDTKuiWjoTlKNAq8sDKZcLMg5kUopQn0juB cNgkwMuFKnWq+idcTcxWHb09+cY7L+l1F2cdmBtIRBq27VWp27ZEvO5S4hmhzderoFsK jA+IhdnJdGrxGpohEguuA8twy3Rtv/bIwjTjYP1ZnzU7aZicJxjECytWi1i+N+/8h9N9 4Ufg== X-Gm-Message-State: AOAM530tZDtewDg5npjWSeHkZKyetn/NgITTKZ/3gnd+zpVN5upsZjYY FHhRy8Dc9HV1NlDuGFoB5BrWGkZFyzM= X-Google-Smtp-Source: ABdhPJyDBlm58W6665qFg+Jw91Zd7lXLP2stqaopXIx2WwDjE42m80AFu3zMZc9m7mG2Hp4e5HS+Pg== X-Received: by 2002:a50:fd01:: with SMTP id i1mr21418912eds.32.1592151740561; Sun, 14 Jun 2020 09:22:20 -0700 (PDT) Received: from localhost.localdomain ([37.244.249.74]) by smtp.gmail.com with ESMTPSA id g22sm7271197ejo.1.2020.06.14.09.22.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Jun 2020 09:22:20 -0700 (PDT) From: Paul B Mahol To: ffmpeg-devel@ffmpeg.org Date: Sun, 14 Jun 2020 18:22:10 +0200 Message-Id: <20200614162211.30885-1-onemda@gmail.com> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH 1/2] avformat/mov: fix demuxing of eia-608 X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 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 MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes #4616. Signed-off-by: Paul B Mahol --- libavformat/mov.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index 2fc27d2aec..6d83a8a4b3 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -7854,6 +7854,27 @@ static int mov_change_extradata(MOVStreamContext *sc, AVPacket *pkt) return 0; } +static int get_eia608_packet(AVIOContext *pb, AVPacket *pkt, int size) +{ + int new_size, ret; + + if (size <= 8) + return AVERROR_INVALIDDATA; + new_size = ((size - 8) / 2) * 3; + ret = av_new_packet(pkt, new_size); + if (ret < 0) + return ret; + + avio_skip(pb, 8); + for (int j = 0; j < new_size; j += 3) { + pkt->data[j] = 0xFC; + pkt->data[j+1] = avio_r8(pb); + pkt->data[j+2] = avio_r8(pb); + } + + return 0; +} + static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) { MOVContext *mov = s->priv_data; @@ -7898,6 +7919,9 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt) goto retry; } + if (st->codecpar->codec_id == AV_CODEC_ID_EIA_608 && sample->size > 8) + ret = get_eia608_packet(sc->pb, pkt, sample->size); + else ret = av_get_packet(sc->pb, pkt, sample->size); if (ret < 0) { if (should_retry(sc->pb, ret)) {