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FFmpeg/libavformat/mxf.c

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/*
* 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"
const uint8_t ff_mxf_random_index_pack_key[16] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
/**
* 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 },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x02,0x03,0x00,0x00,0x00 }, 13, AVMEDIA_TYPE_DATA },
{ { 0x80,0x7D,0x00,0x60,0x08,0x14,0x3E,0x6F,0x6F,0x3C,0x8C,0xE1,0x6C,0xEF,0x11,0xD2 }, 16, AVMEDIA_TYPE_VIDEO }, /* LegacyPicture Avid Media Composer MXF */
{ { 0x80,0x7D,0x00,0x60,0x08,0x14,0x3E,0x6F,0x78,0xE1,0xEB,0xE1,0x6C,0xEF,0x11,0xD2 }, 16, AVMEDIA_TYPE_AUDIO }, /* LegacySound Avid Media Composer MXF */
{ { 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 }, /* JPEG 2000 code stream */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x01,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 SP@LL */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x02,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 SP@ML */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x03,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 MP@LL */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x04,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 MP@ML */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x05,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 MP@HL */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x06,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 AP@L0 */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x07,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 AP@L1 */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x08,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 AP@L2 */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x09,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 AP@L3 */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x04,0x0A,0x00,0x00 }, 14, AV_CODEC_ID_VC1 }, /* VC1 AP@L4 */
{ { 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,0x34,0x04,0x01,0x01,0x01,0x0E,0x04,0x02,0x01,0x02,0x04,0x01,0x00 }, 16, AV_CODEC_ID_DNXHD }, /* SMPTE VC-3/DNxHD Legacy Avid Media Composer MXF */
{ { 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,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01 }, 14, AV_CODEC_ID_H264 }, /* H.264/MPEG-4 AVC SPS/PPS in-band */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x01,0x01,0x02,0x02,0x01 }, 16, AV_CODEC_ID_V210 }, /* V210 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0E,0x04,0x02,0x01,0x02,0x11,0x00,0x00 }, 14, AV_CODEC_ID_PRORES }, /* Avid MC7 ProRes */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x02,0x02,0x03,0x06,0x00,0x00 }, 14, AV_CODEC_ID_PRORES }, /* Apple ProRes */
/* SoundEssenceCompression */
{ { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x03,0x04,0x02,0x02,0x02,0x03,0x03,0x01,0x00 }, 14, AV_CODEC_ID_AAC }, /* MPEG-2 AAC ADTS (legacy) */
{ { 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 },
};
const MXFCodecUL ff_mxf_codec_tag_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0E,0x04,0x03,0x01,0x01,0x03,0x01,0x00 }, 15, MKTAG('A', 'V', 'u', 'p') }, /* Avid 1:1 */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, 0 },
};
const MXFCodecUL ff_mxf_color_primaries_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x03,0x01,0x00,0x00 }, 14, AVCOL_PRI_SMPTE170M }, /* SMPTE 170M */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x03,0x02,0x00,0x00 }, 14, AVCOL_PRI_BT470BG }, /* ITU-R BT.470 PAL */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x03,0x03,0x00,0x00 }, 14, AVCOL_PRI_BT709 }, /* ITU-R BT.709 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x03,0x04,0x00,0x00 }, 14, AVCOL_PRI_BT2020 }, /* ITU-R BT.2020 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x03,0x05,0x00,0x00 }, 14, AVCOL_PRI_SMPTE428 }, /* SMPTE-DC28 DCDM */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x03,0x06,0x00,0x00 }, 14, AVCOL_PRI_SMPTE432 }, /* P3D65 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x03,0x08,0x00,0x00 }, 14, AVCOL_PRI_SMPTE428 }, /* Cinema Mezzanine */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x03,0x0a,0x00,0x00 }, 14, AVCOL_PRI_SMPTE431 }, /* P3DCI */
/* alternate mappings for encoding */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x03,0x01,0x00,0x00 }, 14, AVCOL_PRI_SMPTE240M }, /* = AVCOL_PRI_SMPTE170M */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AVCOL_PRI_UNSPECIFIED },
};
const MXFCodecUL ff_mxf_color_trc_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x01,0x00,0x00 }, 14, AVCOL_TRC_GAMMA22 }, /* ITU-R BT.470 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x02,0x00,0x00 }, 14, AVCOL_TRC_BT709 }, /* ITU-R BT.709 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x03,0x00,0x00 }, 14, AVCOL_TRC_SMPTE240M }, /* SMPTE 240M */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x04,0x00,0x00 }, 14, AVCOL_TRC_BT709 }, /* SMPTE 274/296M (must appear after ITU-R BT.709) */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x05,0x00,0x00 }, 14, AVCOL_TRC_BT1361_ECG }, /* ITU-R BT.1361 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x01,0x06,0x00,0x00 }, 14, AVCOL_TRC_LINEAR }, /* Linear */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x08,0x04,0x01,0x01,0x01,0x01,0x07,0x00,0x00 }, 14, AVCOL_TRC_SMPTE428 }, /* SMPTE-DC28 DCDM */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x01,0x08,0x00,0x00 }, 14, AVCOL_TRC_IEC61966_2_4 }, /* IEC 61966-2-4 xvYCC */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0E,0x04,0x01,0x01,0x01,0x01,0x09,0x00,0x00 }, 14, AVCOL_TRC_BT2020_10 }, /* ITU-R BT.2020 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x01,0x0A,0x00,0x00 }, 14, AVCOL_TRC_SMPTE2084 }, /* SMPTE ST 2084 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x01,0x0B,0x00,0x00 }, 14, AVCOL_TRC_ARIB_STD_B67 }, /* Hybrid Log-Gamma OETF */
/* alternate mappings for encoding */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x01,0x00,0x00 }, 14, AVCOL_TRC_GAMMA28 }, /* = AVCOL_TRC_GAMMA22 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x02,0x00,0x00 }, 14, AVCOL_TRC_SMPTE170M }, /* = AVCOL_TRC_BT709 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0E,0x04,0x01,0x01,0x01,0x01,0x09,0x00,0x00 }, 14, AVCOL_TRC_BT2020_12 }, /* = AVCOL_TRC_BT2020_10 */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AVCOL_TRC_UNSPECIFIED },
};
/* aka Coding Equations */
const MXFCodecUL ff_mxf_color_space_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x02,0x01,0x00,0x00 }, 14, AVCOL_SPC_BT470BG }, /* ITU-R BT.601 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x02,0x02,0x00,0x00 }, 14, AVCOL_SPC_BT709 }, /* ITU-R BT.709 */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x06,0x04,0x01,0x01,0x01,0x02,0x03,0x00,0x00 }, 14, AVCOL_SPC_SMPTE240M }, /* SMPTE 240M */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x02,0x04,0x00,0x00 }, 14, AVCOL_SPC_YCGCO }, /* YCgCo */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x02,0x05,0x00,0x00 }, 14, AVCOL_SPC_RGB }, /* GBR */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0D,0x04,0x01,0x01,0x01,0x02,0x06,0x00,0x00 }, 14, AVCOL_SPC_BT2020_NCL }, /* ITU-R BT.2020 Non-Constant Luminance */
/* alternate mappings for encoding */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x02,0x01,0x00,0x00 }, 14, AVCOL_SPC_SMPTE170M }, /* = AVCOL_SPC_BT470BG */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, AVCOL_SPC_UNSPECIFIED },
};
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 }},
{AV_PIX_FMT_GRAY8, {'A', 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;
}
/**
* See SMPTE 326M-2000 Section 7.2 Content package rate
* MXFContentPackageRate->rate is bits b5..b0.
*/
static const MXFContentPackageRate mxf_content_package_rates[] = {
{ 2, { 1, 24 } },
{ 3, { 1001, 24000 } },
{ 4, { 1, 25 } },
{ 6, { 1, 30 } },
{ 7, { 1001, 30000 } },
{ 8, { 1 , 48 } },
{ 9, { 1001, 48000 } },
{ 10, { 1, 50 } },
{ 12, { 1, 60 } },
{ 13, { 1001, 60000 } },
{ 14, { 1, 72 } },
{ 15, { 1001, 72000 } },
{ 16, { 1, 75 } },
{ 18, { 1, 90 } },
{ 19, { 1001, 90000 } },
{ 20, { 1, 96 } },
{ 21, { 1001, 96000 } },
{ 22, { 1, 100 } },
{ 24, { 1, 120 } },
{ 25, { 1001, 120000} },
{0}
};
int ff_mxf_get_content_package_rate(AVRational time_base)
{
for (int i = 0; mxf_content_package_rates[i].rate; i++)
if (!av_cmp_q(time_base, mxf_content_package_rates[i].tb))
return mxf_content_package_rates[i].rate;
return 0;
}