making act segmenter

1 files changed, 137 insertions, 0 deletions

diff --git a/ffmpeg/libavformat/mxf.c b/ffmpeg/libavformat/mxf.c
new file mode 100644
index 0000000..4a4158a
--- /dev/null
+++ b/ffmpeg/libavformat/mxf.c
@@ -0,0 +1,137 @@
+/*
+ * MXF
+ * Copyright (c) 2006 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
+ *
+ * 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
+ */
+
+#include "libavutil/common.h"
+#include "mxf.h"
+
+/**
+ * SMPTE RP224 http://www.smpte-ra.org/mdd/index.html
+ */
+const MXFCodecUL ff_mxf_data_definition_uls[] = {
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x01,0x00,0x00,0x00 }, 13, AVMEDIA_TYPE_VIDEO },
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x02,0x00,0x00,0x00 }, 13, AVMEDIA_TYPE_AUDIO },
+    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },  0,  AVMEDIA_TYPE_DATA },
+};
+
+const MXFCodecUL ff_mxf_codec_uls[] = {
+    /* PictureEssenceCoding */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* MP@ML Long GoP */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* D-10 50Mbps PAL */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* MP@HL Long GoP */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, 14, AV_CODEC_ID_MPEG2VIDEO }, /* 422P@HL I-Frame */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x20,0x02,0x03 }, 14,      AV_CODEC_ID_MPEG4 }, /* XDCAM proxy_pal030926.mxf */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, 13,    AV_CODEC_ID_DVVIDEO }, /* DV25 IEC PAL */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, 14,   AV_CODEC_ID_JPEG2000 }, /* JPEG2000 Codestream */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, 13,   AV_CODEC_ID_RAWVIDEO }, /* Uncompressed */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }, 15,   AV_CODEC_ID_RAWVIDEO }, /* Uncompressed 422 8-bit */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x71,0x00,0x00,0x00 }, 13,      AV_CODEC_ID_DNXHD }, /* SMPTE VC-3/DNxHD */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x03,0x02,0x00,0x00 }, 14,      AV_CODEC_ID_DNXHD }, /* SMPTE VC-3/DNxHD */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x01,0x32,0x00,0x00 }, 14,       AV_CODEC_ID_H264 }, /* H.264/MPEG-4 AVC Intra */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x01,0x01,0x02,0x02,0x01 }, 16,       AV_CODEC_ID_V210 }, /* V210 */
+    /* SoundEssenceCompression */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, 13,  AV_CODEC_ID_PCM_S16LE }, /* Uncompressed */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, 13,  AV_CODEC_ID_PCM_S16LE },
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, 13,  AV_CODEC_ID_PCM_S16BE }, /* From Omneon MXF file */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x04,0x04,0x02,0x02,0x02,0x03,0x01,0x01,0x00 }, 15,   AV_CODEC_ID_PCM_ALAW }, /* XDCAM Proxy C0023S01.mxf */
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x01,0x00 }, 15,        AV_CODEC_ID_AC3 },
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x05,0x00 }, 15,        AV_CODEC_ID_MP2 }, /* MP2 or MP3 */
+  //{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x02,0x03,0x02,0x1C,0x00 }, 15,    AV_CODEC_ID_DOLBY_E }, /* Dolby-E */
+    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },  0,       AV_CODEC_ID_NONE },
+};
+
+const MXFCodecUL ff_mxf_pixel_format_uls[] = {
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x01,0x01,0x02,0x01,0x01 }, 16, AV_PIX_FMT_UYVY422 },
+    { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x01,0x01,0x02,0x01,0x02 }, 16, AV_PIX_FMT_YUYV422 },
+    { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },  0,    AV_PIX_FMT_NONE },
+};
+
+static const struct {
+    enum AVPixelFormat pix_fmt;
+    const char data[16];
+} ff_mxf_pixel_layouts[] = {
+    /**
+     * See SMPTE 377M E.2.46
+     *
+     * Note: Only RGB, palette based and "abnormal" YUV pixel formats like 4:2:2:4 go here.
+     *       For regular YUV, use CDCIPictureEssenceDescriptor.
+     *
+     * Note: Do not use these for encoding descriptors for little-endian formats until we
+     *       get samples or official word from SMPTE on how/if those can be encoded.
+     */
+    {AV_PIX_FMT_ABGR,    {'A', 8,  'B', 8,  'G', 8, 'R', 8                 }},
+    {AV_PIX_FMT_ARGB,    {'A', 8,  'R', 8,  'G', 8, 'B', 8                 }},
+    {AV_PIX_FMT_BGR24,   {'B', 8,  'G', 8,  'R', 8                         }},
+    {AV_PIX_FMT_BGRA,    {'B', 8,  'G', 8,  'R', 8, 'A', 8                 }},
+    {AV_PIX_FMT_RGB24,   {'R', 8,  'G', 8,  'B', 8                         }},
+    {AV_PIX_FMT_RGB444BE,{'F', 4,  'R', 4,  'G', 4, 'B', 4                 }},
+    {AV_PIX_FMT_RGB48BE, {'R', 8,  'r', 8,  'G', 8, 'g', 8, 'B', 8, 'b', 8 }},
+    {AV_PIX_FMT_RGB48BE, {'R', 16, 'G', 16, 'B', 16                        }},
+    {AV_PIX_FMT_RGB48LE, {'r', 8,  'R', 8,  'g', 8, 'G', 8, 'b', 8, 'B', 8 }},
+    {AV_PIX_FMT_RGB555BE,{'F', 1,  'R', 5,  'G', 5, 'B', 5                 }},
+    {AV_PIX_FMT_RGB565BE,{'R', 5,  'G', 6,  'B', 5                         }},
+    {AV_PIX_FMT_RGBA,    {'R', 8,  'G', 8,  'B', 8, 'A', 8                 }},
+    {AV_PIX_FMT_PAL8,    {'P', 8                                           }},
+};
+
+static const int num_pixel_layouts = FF_ARRAY_ELEMS(ff_mxf_pixel_layouts);
+
+int ff_mxf_decode_pixel_layout(const char pixel_layout[16], enum AVPixelFormat *pix_fmt)
+{
+    int x;
+
+    for(x = 0; x < num_pixel_layouts; x++) {
+        if (!memcmp(pixel_layout, ff_mxf_pixel_layouts[x].data, 16)) {
+            *pix_fmt = ff_mxf_pixel_layouts[x].pix_fmt;
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
+static const MXFSamplesPerFrame mxf_samples_per_frames[] = {
+    { { 1001, 24000 }, { 2002, 0,    0,    0,    0,    0 } }, // FILM 23.976
+    { { 1, 24},        { 2000, 0,    0,    0,    0,    0 } }, // FILM 24
+    { { 1001, 30000 }, { 1602, 1601, 1602, 1601, 1602, 0 } }, // NTSC 29.97
+    { { 1001, 60000 }, { 801,  801,  801,  801,  800,  0 } }, // NTSC 59.94
+    { { 1, 25 },       { 1920, 0,    0,    0,    0,    0 } }, // PAL 25
+    { { 1, 50 },       { 960,  0,    0,    0,    0,    0 } }, // PAL 50
+};
+
+const MXFSamplesPerFrame *ff_mxf_get_samples_per_frame(AVFormatContext *s, AVRational time_base)
+{
+    int i;
+    for (i = 0; i < FF_ARRAY_ELEMS(mxf_samples_per_frames); i++) {
+        if (!av_cmp_q(mxf_samples_per_frames[i].time_base, time_base))
+            return &mxf_samples_per_frames[i];
+    }
+
+    // Find closest container time base for approximative codec time base like 1/29.97, 1/30, ...
+    for (i = 0; i < FF_ARRAY_ELEMS(mxf_samples_per_frames); i++) {
+        if (fabs(av_q2d(mxf_samples_per_frames[i].time_base) - av_q2d(time_base)) < 0.0001) {
+            av_log(s, AV_LOG_WARNING, "%d/%d input time base matched %d/%d container time base\n",
+                   time_base.num, time_base.den,
+                   mxf_samples_per_frames[i].time_base.num, mxf_samples_per_frames[i].time_base.den);
+            return &mxf_samples_per_frames[i];
+        }
+    }
+    return NULL;
+}