Phantom Cine demuxer (iteration 2014.3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Changelog

@@ -33,6 +33,7 @@ version 2.2:
 - libx265 encoder
 - dejudder filter
 - subfile protocol
+- Phantom Cine demuxer
 
 
 version 2.1:

doc/general.texi

@@ -245,6 +245,7 @@ library:
     @tab Multimedia format used by Delphine Software games.
 @item CD+G                      @tab   @tab X
     @tab Video format used by CD+G karaoke disks
+@item Phantom Cine              @tab   @tab X
 @item Commodore CDXL            @tab   @tab X
     @tab Amiga CD video format
 @item Core Audio Format         @tab X @tab X

libavformat/Makefile

@@ -106,6 +106,7 @@ OBJS-$(CONFIG_CAVSVIDEO_DEMUXER)         += cavsvideodec.o rawdec.o
 OBJS-$(CONFIG_CAVSVIDEO_MUXER)           += rawenc.o
 OBJS-$(CONFIG_CDG_DEMUXER)               += cdg.o
 OBJS-$(CONFIG_CDXL_DEMUXER)              += cdxl.o
+OBJS-$(CONFIG_CINE_DEMUXER)              += cinedec.o
 OBJS-$(CONFIG_CONCAT_DEMUXER)            += concatdec.o
 OBJS-$(CONFIG_CRC_MUXER)                 += crcenc.o
 OBJS-$(CONFIG_DATA_DEMUXER)              += rawdec.o

libavformat/allformats.c

@@ -98,6 +98,7 @@ void av_register_all(void)
     REGISTER_MUXDEMUX(CAVSVIDEO,        cavsvideo);
     REGISTER_DEMUXER (CDG,              cdg);
     REGISTER_DEMUXER (CDXL,             cdxl);
+    REGISTER_DEMUXER (CINE,             cine);
     REGISTER_DEMUXER (CONCAT,           concat);
     REGISTER_MUXER   (CRC,              crc);
     REGISTER_MUXDEMUX(DATA,             data);

libavformat/cinedec.c

+/*
+ * Phanton Cine demuxer
+ * Copyright (c) 2010-2011 Peter Ross <pross@xvid.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Phantom Cine demuxer
+ * @author Peter Ross <pross@xvid.org>
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavcodec/bmp.h"
+#include "avformat.h"
+#include "internal.h"
+
+typedef struct {
+    uint64_t pts;
+} CineDemuxContext;
+
+/** Compression */
+enum {
+    CC_RGB   = 0,  /**< Gray */
+    CC_LEAD  = 1,  /**< LEAD (M)JPEG */
+    CC_UNINT = 2   /**< Uninterpolated color image (CFA field indicates color ordering)  */
+};
+
+/** Color Filter Array */
+enum {
+    CFA_NONE      = 0,  /**< GRAY */
+    CFA_VRI       = 1,  /**< GBRG/RGGB */
+    CFA_VRIV6     = 2,  /**< BGGR/GRBG */
+    CFA_BAYER     = 3,  /**< GB/RG */
+    CFA_BAYERFLIP = 4,  /**< RG/GB */
+
+    CFA_TLGRAY    = 0x80000000,
+    CFA_TRGRAY    = 0x40000000,
+    CFA_BLGRAY    = 0x20000000,
+    CFA_BRGRAY    = 0x10000000
+};
+
+static int cine_read_probe(AVProbeData *p)
+{
+    int HeaderSize;
+    if (p->buf[0] == 'C' && p->buf[1] == 'I' &&  // Type
+        (HeaderSize = AV_RL16(p->buf + 2)) >= 0x2C &&  // HeaderSize
+        AV_RL16(p->buf + 4) <= CC_UNINT &&       // Compression
+        AV_RL16(p->buf + 6) <= 1 &&              // Version
+        AV_RL32(p->buf + 20) &&                  // ImageCount
+        AV_RL32(p->buf + 24) >= HeaderSize &&    // OffImageHeader
+        AV_RL32(p->buf + 28) >= HeaderSize &&    // OffSetup
+        AV_RL32(p->buf + 32) >= HeaderSize)      // OffImageOffsets
+        return AVPROBE_SCORE_MAX;
+    return 0;
+}
+
+static int set_metadata_int(AVDictionary **dict, const char *key, int value)
+{
+    if (value) {
+        char buf[64];
+        snprintf(buf, sizeof(buf - 1), "%i", value);
+        buf[sizeof(buf) - 1] = 0;
+        return av_dict_set(dict, key, buf, 0);
+    }
+    return 0;
+}
+
+static int cine_read_header(AVFormatContext *avctx)
+{
+    AVIOContext *pb = avctx->pb;
+    AVStream *st;
+    unsigned int version, compression, offImageHeader, offSetup, offImageOffsets, biBitCount, length, CFA;
+    int vflip;
+    char *description;
+    uint64_t i;
+
+    st = avformat_new_stream(avctx, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+    st->codec->codec_id   = AV_CODEC_ID_RAWVIDEO;
+    st->codec->codec_tag  = 0;
+
+    /* CINEFILEHEADER structure */
+    avio_skip(pb, 4); // Type, Headersize
+
+    compression = avio_rl16(pb);
+    version     = avio_rl16(pb);
+    if (version != 1) {
+        avpriv_request_sample(avctx, "uknown version %i", version);
+        return AVERROR_INVALIDDATA;
+    }
+
+    avio_skip(pb, 12); // FirstMovieImage, TotalImageCount, FirstImageNumber
+
+    st->duration    = avio_rl32(pb);
+    offImageHeader  = avio_rl32(pb);
+    offSetup        = avio_rl32(pb);
+    offImageOffsets = avio_rl32(pb);
+
+    avio_skip(pb, 8); // TriggerTime
+
+    /* BITMAPINFOHEADER structure */
+    avio_seek(pb, offImageHeader, SEEK_SET);
+    avio_skip(pb, 4); //biSize
+    st->codec->width      = avio_rl32(pb);
+    st->codec->height     = avio_rl32(pb);
+
+    if (avio_rl16(pb) != 1) // biPlanes
+        return AVERROR_INVALIDDATA;
+
+    biBitCount = avio_rl16(pb);
+    if (biBitCount != 8 && biBitCount != 16 && biBitCount != 24 && biBitCount != 48)
+        return AVERROR_INVALIDDATA;
+
+    switch (avio_rl32(pb)) {
+    case BMP_RGB:
+        vflip = 0;
+        break;
+    case 0x100: /* BI_PACKED */
+        st->codec->codec_tag = MKTAG('B', 'I', 'T', 0);
+        vflip = 1;
+        break;
+    default:
+        avpriv_request_sample(avctx, "unknown bitmap compression");
+        return AVERROR_INVALIDDATA;
+    }
+
+    avio_skip(pb, 4); // biSizeImage
+
+    /* parse SETUP structure */
+    avio_seek(pb, offSetup, SEEK_SET);
+    avio_skip(pb, 140); // FrameRatae16 .. descriptionOld
+    if (avio_rl16(pb) != 0x5453)
+        return AVERROR_INVALIDDATA;
+    length = avio_rl16(pb);
+    if (length < 0x163C) {
+        avpriv_request_sample(avctx, "short SETUP header");
+        return AVERROR_INVALIDDATA;
+    }
+
+    avio_skip(pb, 616); // Binning .. bFlipH
+    if (!avio_rl32(pb) ^ vflip) {
+        st->codec->extradata  = av_strdup("BottomUp");
+        st->codec->extradata_size  = 9;
+    }
+
+    avio_skip(pb, 4); // Grid
+
+    avpriv_set_pts_info(st, 64, 1, avio_rl32(pb));
+
+    avio_skip(pb, 20); // Shutter .. bEnableColor
+
+    set_metadata_int(&st->metadata, "camera_version", avio_rl32(pb));
+    set_metadata_int(&st->metadata, "firmware_version", avio_rl32(pb));
+    set_metadata_int(&st->metadata, "software_version", avio_rl32(pb));
+    set_metadata_int(&st->metadata, "recording_timezone", avio_rl32(pb));
+
+    CFA = avio_rl32(pb);
+
+    set_metadata_int(&st->metadata, "brightness", avio_rl32(pb));
+    set_metadata_int(&st->metadata, "contrast", avio_rl32(pb));
+    set_metadata_int(&st->metadata, "gamma", avio_rl32(pb));
+
+    avio_skip(pb, 72); // Reserved1 .. WBView
+
+    st->codec->bits_per_coded_sample = avio_rl32(pb);
+
+    if (compression == CC_RGB) {
+        if (biBitCount == 8) {
+            st->codec->pix_fmt = AV_PIX_FMT_GRAY8;
+        } else if (biBitCount == 16) {
+            st->codec->pix_fmt = AV_PIX_FMT_GRAY16LE;
+        } else if (biBitCount == 24) {
+            st->codec->pix_fmt = AV_PIX_FMT_BGR24;
+        } else if (biBitCount == 48) {
+            st->codec->pix_fmt = AV_PIX_FMT_BGR48LE;
+        } else {
+            avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
+            return AVERROR_INVALIDDATA;
+        }
+    } else if (compression == CC_UNINT) {
+        switch (CFA & 0xFFFFFF) {
+        case CFA_BAYER:
+            if (biBitCount == 8) {
+                st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG8;
+            } else if (biBitCount == 16) {
+                st->codec->pix_fmt = AV_PIX_FMT_BAYER_GBRG16LE;
+            } else {
+                avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
+                return AVERROR_INVALIDDATA;
+            }
+            break;
+        case CFA_BAYERFLIP:
+            if (biBitCount == 8) {
+                st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB8;
+            } else if (biBitCount == 16) {
+                st->codec->pix_fmt = AV_PIX_FMT_BAYER_RGGB16LE;
+            } else {
+                avpriv_request_sample(avctx, "unsupported biBitCount %i", biBitCount);
+                return AVERROR_INVALIDDATA;
+            }
+            break;
+        default:
+           avpriv_request_sample(avctx, "unsupported Color Field Array (CFA) %i", CFA & 0xFFFFFF);
+            return AVERROR_INVALIDDATA;
+        }
+    } else { //CC_LEAD
+        avpriv_request_sample(avctx, "unsupported compression %i", compression);
+        return AVERROR_INVALIDDATA;
+    }
+
+    avio_skip(pb, 696); // Conv8Min ... ImHeightAcq
+
+#define DESCRIPTION_SIZE 4096
+    description = av_malloc(DESCRIPTION_SIZE + 1);
+    if (!description)
+        return AVERROR(ENOMEM);
+    i = avio_get_str(pb, DESCRIPTION_SIZE, description, DESCRIPTION_SIZE + 1);
+    if (i < DESCRIPTION_SIZE)
+        avio_skip(pb, DESCRIPTION_SIZE - i);
+    if (description[0])
+        av_dict_set(&st->metadata, "description", description, AV_DICT_DONT_STRDUP_VAL);
+    else
+        av_free(description);
+
+    /* parse image offsets */
+    avio_seek(pb, offImageOffsets, SEEK_SET);
+    for (i = 0; i < st->duration; i++)
+        av_add_index_entry(st, avio_rl64(pb), i, 0, 0, AVINDEX_KEYFRAME);
+
+    return 0;
+}
+
+static int cine_read_packet(AVFormatContext *avctx, AVPacket *pkt)
+{
+    CineDemuxContext *cine = avctx->priv_data;
+    AVStream *st = avctx->streams[0];
+    AVIOContext *pb = avctx->pb;
+    int n, size, ret;
+
+    if (cine->pts >= st->duration)
+        return AVERROR_EOF;
+
+    avio_seek(pb, st->index_entries[cine->pts].pos, SEEK_SET);
+    n = avio_rl32(pb);
+    if (n < 8)
+        return AVERROR_INVALIDDATA;
+    avio_skip(pb, n - 8);
+    size = avio_rl32(pb);
+
+    ret = av_get_packet(pb, pkt, size);
+    if (ret < 0)
+        return ret;
+
+    pkt->pts = cine->pts++;
+    pkt->stream_index = 0;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    return 0;
+}
+
+static int cine_read_seek(AVFormatContext *avctx, int stream_index, int64_t timestamp, int flags)
+{
+    CineDemuxContext *cine = avctx->priv_data;
+
+    if ((flags & AVSEEK_FLAG_FRAME) || (flags & AVSEEK_FLAG_BYTE))
+        return AVERROR(ENOSYS);
+
+    if (!avctx->pb->seekable)
+        return AVERROR(EIO);
+
+    cine->pts = timestamp;
+    return 0;
+}
+
+AVInputFormat ff_cine_demuxer = {
+    .name           = "cine",
+    .long_name      = NULL_IF_CONFIG_SMALL("Phantom Cine"),
+    .priv_data_size = sizeof(CineDemuxContext),
+    .read_probe     = cine_read_probe,
+    .read_header    = cine_read_header,
+    .read_packet    = cine_read_packet,
+    .read_seek      = cine_read_seek,
+};