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854 lines
31 KiB
854 lines
31 KiB
/* |
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* MXF muxer |
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* Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/* |
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* References |
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* SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value |
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* SMPTE 377M MXF File Format Specifications |
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* SMPTE 379M MXF Generic Container |
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* SMPTE 381M Mapping MPEG Streams into the MXF Generic Container |
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* SMPTE RP210: SMPTE Metadata Dictionary |
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* SMPTE RP224: Registry of SMPTE Universal Labels |
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*/ |
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//#define DEBUG |
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#include "mxf.h" |
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typedef struct { |
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int local_tag; |
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UID uid; |
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} MXFLocalTagPair; |
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typedef struct { |
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UID track_essence_element_key; |
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int index; //<<< index in mxf_essence_container_uls table |
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const UID *codec_ul; |
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int64_t duration; |
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} MXFStreamContext; |
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typedef struct { |
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UID container_ul; |
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UID element_ul; |
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UID codec_ul; |
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enum CodecID id; |
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void (*write_desc)(); |
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} MXFContainerEssenceEntry; |
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static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st); |
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static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st); |
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static const MXFContainerEssenceEntry mxf_essence_container_uls[] = { |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, |
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 }, |
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 }, |
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CODEC_ID_MPEG2VIDEO, mxf_write_mpegvideo_desc }, |
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{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, |
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{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 }, |
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{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
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CODEC_ID_PCM_S16LE, mxf_write_wav_desc }, |
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{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
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{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
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{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
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CODEC_ID_NONE, NULL }, |
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}; |
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typedef struct MXFContext { |
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int64_t footer_partition_offset; |
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int essence_container_count; |
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uint8_t essence_containers_indices[sizeof(mxf_essence_container_uls)/ |
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sizeof(*mxf_essence_container_uls)]; |
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} MXFContext; |
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static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; |
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static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x0F,0x00,0x13,0x00,0x00,0x00 }; |
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/** |
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* complete key for operation pattern, partitions, and primer pack |
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*/ |
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static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x01,0x00 }; |
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static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete |
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static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }; |
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static const uint8_t header_open_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete |
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static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete |
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/** |
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* partial key for header metadata |
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*/ |
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static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 }; |
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static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 }; |
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/** |
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* SMPTE RP210 http://www.smpte-ra.org/mdd/index.html |
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*/ |
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static const MXFLocalTagPair mxf_local_tag_batch[] = { |
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// preface set |
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{ 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */ |
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{ 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */ |
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{ 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */ |
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{ 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */ |
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{ 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */ |
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{ 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */ |
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{ 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */ |
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{ 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */ |
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// Identification |
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{ 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */ |
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{ 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */ |
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{ 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */ |
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{ 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */ |
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{ 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */ |
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{ 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */ |
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// Content Storage |
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{ 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */ |
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// Essence Container Data |
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{ 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */ |
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{ 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */ |
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// Package |
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{ 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */ |
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{ 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */ |
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{ 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */ |
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{ 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */ |
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{ 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */ |
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// Track |
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{ 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */ |
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{ 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */ |
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{ 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */ |
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{ 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */ |
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{ 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */ |
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// Sequence |
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{ 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */ |
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{ 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */ |
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{ 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */ |
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// Source Clip |
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{ 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Start position */ |
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{ 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */ |
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{ 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */ |
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// File Descriptor |
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{ 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */ |
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{ 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */ |
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{ 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */ |
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{ 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */ |
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// Generic Picture Essence Descriptor |
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{ 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */ |
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{ 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */ |
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{ 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */ |
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{ 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */ |
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// Generic Sound Essence Descriptor |
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{ 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */ |
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{ 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */ |
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{ 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */ |
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{ 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */ |
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}; |
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static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) |
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{ |
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put_buffer(pb, uuid_base, 12); |
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put_be16(pb, type); |
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put_be16(pb, value); |
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} |
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static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) |
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{ |
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put_buffer(pb, umid_base, 16); |
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mxf_write_uuid(pb, type, value); |
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} |
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static void mxf_write_refs_count(ByteIOContext *pb, int ref_count) |
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{ |
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put_be32(pb, ref_count); |
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put_be32(pb, 16); |
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} |
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static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len) |
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{ |
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// Determine the best BER size |
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int size; |
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if (len < 128) { |
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//short form |
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put_byte(pb, len); |
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return 1; |
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} |
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size = (av_log2(len) >> 3) + 1; |
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// long form |
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put_byte(pb, 0x80 + size); |
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while(size) { |
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size --; |
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put_byte(pb, len >> 8 * size & 0xff); |
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} |
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return 0; |
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} |
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/* |
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* Get essence container ul index |
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*/ |
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static int mxf_get_essence_container_ul_index(enum CodecID id) |
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{ |
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int i; |
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for (i = 0; i < sizeof(mxf_essence_container_uls)/ |
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sizeof(*mxf_essence_container_uls); i++) |
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if (mxf_essence_container_uls[i].id == id) |
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return i; |
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return -1; |
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} |
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static void mxf_write_primer_pack(AVFormatContext *s) |
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{ |
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ByteIOContext *pb = s->pb; |
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int local_tag_number, i = 0; |
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local_tag_number = sizeof(mxf_local_tag_batch)/sizeof(*mxf_local_tag_batch); |
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put_buffer(pb, primer_pack_key, 16); |
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klv_encode_ber_length(pb, local_tag_number * 18 + 8); |
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put_be32(pb, local_tag_number); // local_tag num |
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put_be32(pb, 18); // item size, always 18 according to the specs |
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for (i = 0; i < local_tag_number; i++) { |
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put_be16(pb, mxf_local_tag_batch[i].local_tag); |
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put_buffer(pb, mxf_local_tag_batch[i].uid, 16); |
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} |
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} |
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static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag) |
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{ |
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put_be16(pb, tag); |
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put_be16(pb, size); |
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} |
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static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value) |
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{ |
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put_buffer(pb, header_metadata_key, 13); |
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put_be24(pb, value); |
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} |
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static void mxf_free(AVFormatContext *s) |
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{ |
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int i; |
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for (i = 0; i < s->nb_streams; i++) { |
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AVStream *st = s->streams[i]; |
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av_freep(&st->priv_data); |
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} |
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} |
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static const MXFDataDefinitionUL *mxf_get_data_definition_ul(enum CodecType type) |
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{ |
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const MXFDataDefinitionUL *uls = ff_mxf_data_definition_uls; |
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while (uls->type != CODEC_TYPE_DATA) { |
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if (type == uls->type) |
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break; |
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uls++; |
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} |
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return uls; |
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} |
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static void mxf_write_essence_container_refs(AVFormatContext *s) |
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{ |
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MXFContext *c = s->priv_data; |
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ByteIOContext *pb = s->pb; |
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int i; |
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mxf_write_refs_count(pb, c->essence_container_count); |
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av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count); |
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for (i = 0; i < c->essence_container_count; i++) { |
|
put_buffer(pb, mxf_essence_container_uls[c->essence_containers_indices[i]].container_ul, 16); |
|
PRINT_KEY(s, "essence container ul:\n", mxf_essence_container_uls[c->essence_containers_indices[i]].container_ul); |
|
} |
|
} |
|
|
|
static void mxf_write_preface(AVFormatContext *s) |
|
{ |
|
MXFContext *mxf = s->priv_data; |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf_write_metadata_key(pb, 0x012f00); |
|
PRINT_KEY(s, "preface key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 130 + 16 * mxf->essence_container_count); |
|
|
|
// write preface set uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, Preface, 0); |
|
PRINT_KEY(s, "preface uid", pb->buf_ptr - 16); |
|
|
|
// write create date as unknown |
|
mxf_write_local_tag(pb, 8, 0x3B02); |
|
put_be64(pb, 0); |
|
|
|
// write version |
|
mxf_write_local_tag(pb, 2, 0x3B05); |
|
put_be16(pb, 1); |
|
|
|
// write identification_refs |
|
mxf_write_local_tag(pb, 16 + 8, 0x3B06); |
|
mxf_write_refs_count(pb, 1); |
|
mxf_write_uuid(pb, Identification, 0); |
|
|
|
// write content_storage_refs |
|
mxf_write_local_tag(pb, 16, 0x3B03); |
|
mxf_write_uuid(pb, ContentStorage, 0); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3B09); |
|
put_buffer(pb, op1a_ul, 16); |
|
|
|
// write essence_container_refs |
|
mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A); |
|
mxf_write_essence_container_refs(s); |
|
|
|
// write dm_scheme_refs |
|
mxf_write_local_tag(pb, 8, 0x3B0B); |
|
put_be64(pb, 0); |
|
} |
|
|
|
/* |
|
* Write a local tag containing an ascii string as utf-16 |
|
*/ |
|
static void mxf_write_local_tag_utf16(ByteIOContext *pb, int tag, const char *value) |
|
{ |
|
int i, size = strlen(value); |
|
mxf_write_local_tag(pb, size*2, tag); |
|
for (i = 0; i < size; i++) |
|
put_be16(pb, value[i]); |
|
} |
|
|
|
static void mxf_write_identification(AVFormatContext *s) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
const char *company = "FFmpeg"; |
|
const char *product = "OP1a Muxer"; |
|
const char *version; |
|
int length; |
|
|
|
mxf_write_metadata_key(pb, 0x013000); |
|
PRINT_KEY(s, "identification key", pb->buf_ptr - 16); |
|
|
|
version = s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT ? |
|
"0.0.0" : AV_STRINGIFY(LIBAVFORMAT_VERSION); |
|
length = 84 + (strlen(company)+strlen(product)+strlen(version))*2; // utf-16 |
|
klv_encode_ber_length(pb, length); |
|
|
|
// write uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, Identification, 0); |
|
PRINT_KEY(s, "identification uid", pb->buf_ptr - 16); |
|
|
|
// write generation uid |
|
mxf_write_local_tag(pb, 16, 0x3C09); |
|
mxf_write_uuid(pb, Identification, 1); |
|
|
|
mxf_write_local_tag_utf16(pb, 0x3C01, company); // Company Name |
|
mxf_write_local_tag_utf16(pb, 0x3C02, product); // Product Name |
|
mxf_write_local_tag_utf16(pb, 0x3C04, version); // Version String |
|
|
|
// write product uid |
|
mxf_write_local_tag(pb, 16, 0x3C05); |
|
mxf_write_uuid(pb, Identification, 2); |
|
|
|
// write modified date |
|
mxf_write_local_tag(pb, 8, 0x3C06); |
|
put_be64(pb, 0); |
|
} |
|
|
|
static void mxf_write_content_storage(AVFormatContext *s) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf_write_metadata_key(pb, 0x011800); |
|
PRINT_KEY(s, "content storage key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 64); |
|
|
|
// write uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, ContentStorage, 0); |
|
PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16); |
|
|
|
// write package reference |
|
mxf_write_local_tag(pb, 16 * 2 + 8, 0x1901); |
|
mxf_write_refs_count(pb, 2); |
|
mxf_write_uuid(pb, MaterialPackage, 0); |
|
mxf_write_uuid(pb, SourcePackage, 0); |
|
} |
|
|
|
static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
MXFStreamContext *sc = st->priv_data; |
|
|
|
mxf_write_metadata_key(pb, 0x013b00); |
|
PRINT_KEY(s, "track key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 80); |
|
|
|
// write track uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, st->index); |
|
PRINT_KEY(s, "track uid", pb->buf_ptr - 16); |
|
|
|
// write track id |
|
mxf_write_local_tag(pb, 4, 0x4801); |
|
put_be32(pb, st->index); |
|
|
|
// write track number |
|
mxf_write_local_tag(pb, 4, 0x4804); |
|
if (type == MaterialPackage) |
|
put_be32(pb, 0); // track number of material package is 0 |
|
else |
|
put_buffer(pb, sc->track_essence_element_key + 12, 4); |
|
|
|
mxf_write_local_tag(pb, 8, 0x4B01); |
|
put_be32(pb, st->time_base.den); |
|
put_be32(pb, st->time_base.num); |
|
|
|
// write origin |
|
mxf_write_local_tag(pb, 8, 0x4B02); |
|
put_be64(pb, 0); |
|
|
|
// write sequence refs |
|
mxf_write_local_tag(pb, 16, 0x4803); |
|
mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); |
|
} |
|
|
|
static void mxf_write_common_fields(ByteIOContext *pb, AVStream *st) |
|
{ |
|
const MXFDataDefinitionUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type); |
|
MXFStreamContext *sc = st->priv_data; |
|
|
|
// find data define uls |
|
mxf_write_local_tag(pb, 16, 0x0201); |
|
put_buffer(pb, data_def_ul->uid, 16); |
|
|
|
// write duration |
|
mxf_write_local_tag(pb, 8, 0x0202); |
|
put_be64(pb, sc->duration); |
|
} |
|
|
|
static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf_write_metadata_key(pb, 0x010f00); |
|
PRINT_KEY(s, "sequence key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 80); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); |
|
|
|
PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16); |
|
mxf_write_common_fields(pb, st); |
|
|
|
// write structural component |
|
mxf_write_local_tag(pb, 16 + 8, 0x1001); |
|
mxf_write_refs_count(pb, 1); |
|
mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); |
|
} |
|
|
|
static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
int i; |
|
|
|
mxf_write_metadata_key(pb, 0x011100); |
|
PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 108); |
|
|
|
// write uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); |
|
|
|
PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); |
|
mxf_write_common_fields(pb, st); |
|
|
|
// write start_position |
|
mxf_write_local_tag(pb, 8, 0x1201); |
|
put_be64(pb, 0); |
|
|
|
// write source package uid, end of the reference |
|
mxf_write_local_tag(pb, 32, 0x1101); |
|
if (type == SourcePackage) { |
|
for (i = 0; i < 4; i++) |
|
put_be64(pb, 0); |
|
} else |
|
mxf_write_umid(pb, SourcePackage, 0); |
|
|
|
// write source track id |
|
mxf_write_local_tag(pb, 4, 0x1102); |
|
if (type == SourcePackage) |
|
put_be32(pb, 0); |
|
else |
|
put_be32(pb, st->index); |
|
} |
|
|
|
static void mxf_write_multi_descriptor(AVFormatContext *s) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
int i; |
|
|
|
mxf_write_metadata_key(pb, 0x014400); |
|
PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 64 + 16 * s->nb_streams); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, MultipleDescriptor, 0); |
|
PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16); |
|
|
|
// write sample rate |
|
mxf_write_local_tag(pb, 8, 0x3001); |
|
put_be32(pb, s->streams[0]->time_base.den); |
|
put_be32(pb, s->streams[0]->time_base.num); |
|
|
|
// write essence container ul |
|
mxf_write_local_tag(pb, 16, 0x3004); |
|
put_buffer(pb, multiple_desc_ul, 16); |
|
|
|
// write sub descriptor refs |
|
mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x3F01); |
|
mxf_write_refs_count(pb, s->nb_streams); |
|
for (i = 0; i < s->nb_streams; i++) |
|
mxf_write_uuid(pb, SubDescriptor, i); |
|
} |
|
|
|
static void mxf_write_generic_desc(ByteIOContext *pb, AVStream *st, const UID key) |
|
{ |
|
MXFStreamContext *sc = st->priv_data; |
|
|
|
put_buffer(pb, key, 16); |
|
klv_encode_ber_length(pb, 108); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, SubDescriptor, st->index); |
|
|
|
mxf_write_local_tag(pb, 4, 0x3006); |
|
put_be32(pb, st->index); |
|
|
|
mxf_write_local_tag(pb, 8, 0x3001); |
|
put_be32(pb, st->time_base.den); |
|
put_be32(pb, st->time_base.num); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3004); |
|
put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); |
|
|
|
mxf_write_local_tag(pb, 16, 0x3201); |
|
put_buffer(pb, *sc->codec_ul, 16); |
|
} |
|
|
|
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }; |
|
static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }; |
|
|
|
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key); |
|
|
|
mxf_write_local_tag(pb, 4, 0x3203); |
|
put_be32(pb, st->codec->width); |
|
|
|
mxf_write_local_tag(pb, 4, 0x3202); |
|
put_be32(pb, st->codec->height); |
|
|
|
mxf_write_local_tag(pb, 8, 0x320E); |
|
put_be32(pb, st->codec->height * st->sample_aspect_ratio.den); |
|
put_be32(pb, st->codec->width * st->sample_aspect_ratio.num); |
|
} |
|
|
|
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf_write_generic_desc(pb, st, mxf_wav_descriptor_key); |
|
|
|
// write audio sampling rate |
|
mxf_write_local_tag(pb, 8, 0x3D03); |
|
put_be32(pb, st->codec->sample_rate); |
|
put_be32(pb, 1); |
|
|
|
mxf_write_local_tag(pb, 4, 0x3D07); |
|
put_be32(pb, st->codec->channels); |
|
|
|
mxf_write_local_tag(pb, 4, 0x3D01); |
|
put_be32(pb, st->codec->bits_per_coded_sample); |
|
} |
|
|
|
static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
int i; |
|
|
|
if (type == MaterialPackage) { |
|
mxf_write_metadata_key(pb, 0x013600); |
|
PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 92 + 16 * s->nb_streams); |
|
} else { |
|
mxf_write_metadata_key(pb, 0x013700); |
|
PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16); |
|
klv_encode_ber_length(pb, 112 + 16 * s->nb_streams); // 20 bytes length for descriptor reference |
|
} |
|
|
|
// write uid |
|
mxf_write_local_tag(pb, 16, 0x3C0A); |
|
mxf_write_uuid(pb, type, 0); |
|
av_log(s,AV_LOG_DEBUG, "package type:%d\n", type); |
|
PRINT_KEY(s, "package uid", pb->buf_ptr - 16); |
|
|
|
// write package umid |
|
mxf_write_local_tag(pb, 32, 0x4401); |
|
mxf_write_umid(pb, type, 0); |
|
PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); |
|
|
|
// write create date |
|
mxf_write_local_tag(pb, 8, 0x4405); |
|
put_be64(pb, 0); |
|
|
|
// write modified date |
|
mxf_write_local_tag(pb, 8, 0x4404); |
|
put_be64(pb, 0); |
|
|
|
// write track refs |
|
mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x4403); |
|
mxf_write_refs_count(pb, s->nb_streams); |
|
for (i = 0; i < s->nb_streams; i++) |
|
mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i); |
|
|
|
// write multiple descriptor reference |
|
if (type == SourcePackage) { |
|
mxf_write_local_tag(pb, 16, 0x4701); |
|
if (s->nb_streams > 1) { |
|
mxf_write_uuid(pb, MultipleDescriptor, 0); |
|
mxf_write_multi_descriptor(s); |
|
} else |
|
mxf_write_uuid(pb, SubDescriptor, 0); |
|
} |
|
|
|
for (i = 0; i < s->nb_streams; i++) { |
|
AVStream *st = s->streams[i]; |
|
mxf_write_track(s, st, type); |
|
mxf_write_sequence(s, st, type); |
|
mxf_write_structural_component(s, st, type); |
|
|
|
if (type == SourcePackage) { |
|
MXFStreamContext *sc = st->priv_data; |
|
mxf_essence_container_uls[sc->index].write_desc(s, st); |
|
} |
|
} |
|
} |
|
|
|
static int mxf_write_header_metadata_sets(AVFormatContext *s) |
|
{ |
|
mxf_write_preface(s); |
|
mxf_write_identification(s); |
|
mxf_write_content_storage(s); |
|
mxf_write_package(s, MaterialPackage); |
|
mxf_write_package(s, SourcePackage); |
|
return 0; |
|
} |
|
|
|
static void mxf_write_partition(AVFormatContext *s, int bodysid, const uint8_t *key, int write_metadata) |
|
{ |
|
MXFContext *mxf = s->priv_data; |
|
ByteIOContext *pb = s->pb; |
|
int64_t header_byte_count_offset; |
|
|
|
// write klv |
|
put_buffer(pb, key, 16); |
|
|
|
klv_encode_ber_length(pb, 88 + 16 * mxf->essence_container_count); |
|
|
|
// write partition value |
|
put_be16(pb, 1); // majorVersion |
|
put_be16(pb, 2); // minorVersion |
|
put_be32(pb, 1); // kagSize |
|
|
|
put_be64(pb, url_ftell(pb) - 25); // thisPartition |
|
put_be64(pb, 0); // previousPartition |
|
|
|
put_be64(pb, mxf->footer_partition_offset); // footerPartition |
|
|
|
// set offset |
|
header_byte_count_offset = url_ftell(pb); |
|
put_be64(pb, 0); // headerByteCount, update later |
|
|
|
// no indexTable |
|
put_be64(pb, 0); // indexByteCount |
|
put_be32(pb, 0); // indexSID |
|
put_be64(pb, 0); // bodyOffset |
|
|
|
put_be32(pb, bodysid); // bodySID |
|
put_buffer(pb, op1a_ul, 16); // operational pattern |
|
|
|
// essence container |
|
mxf_write_essence_container_refs(s); |
|
|
|
if (write_metadata) { |
|
// mark the start of the headermetadata and calculate metadata size |
|
int64_t pos, start = url_ftell(s->pb); |
|
mxf_write_primer_pack(s); |
|
mxf_write_header_metadata_sets(s); |
|
pos = url_ftell(s->pb); |
|
// update header_byte_count |
|
url_fseek(pb, header_byte_count_offset, SEEK_SET); |
|
put_be64(pb, pos - start); |
|
url_fseek(pb, pos, SEEK_SET); |
|
} |
|
|
|
put_flush_packet(pb); |
|
} |
|
|
|
static const UID mxf_mpeg2_codec_uls[] = { |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame |
|
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP |
|
}; |
|
|
|
static const UID *mxf_get_mpeg2_codec_ul(AVCodecContext *avctx) |
|
{ |
|
if (avctx->profile == 4) { // Main |
|
if (avctx->level == 8) // Main |
|
return avctx->gop_size ? |
|
&mxf_mpeg2_codec_uls[1] : |
|
&mxf_mpeg2_codec_uls[0]; |
|
else if (avctx->level == 4) // High |
|
return avctx->gop_size ? |
|
&mxf_mpeg2_codec_uls[5] : |
|
&mxf_mpeg2_codec_uls[4]; |
|
} else if (avctx->profile == 0) { // 422 |
|
if (avctx->level == 5) // Main |
|
return avctx->gop_size ? |
|
&mxf_mpeg2_codec_uls[3] : |
|
&mxf_mpeg2_codec_uls[2]; |
|
else if (avctx->level == 2) // High |
|
return avctx->gop_size ? |
|
&mxf_mpeg2_codec_uls[7] : |
|
&mxf_mpeg2_codec_uls[6]; |
|
} |
|
return NULL; |
|
} |
|
|
|
static int mxf_write_header(AVFormatContext *s) |
|
{ |
|
MXFContext *mxf = s->priv_data; |
|
int i; |
|
uint8_t present[sizeof(mxf_essence_container_uls)/ |
|
sizeof(*mxf_essence_container_uls)] = {0}; |
|
|
|
for (i = 0; i < s->nb_streams; i++) { |
|
AVStream *st = s->streams[i]; |
|
MXFStreamContext *sc = av_mallocz(sizeof(*sc)); |
|
if (!sc) |
|
return AVERROR(ENOMEM); |
|
st->priv_data = sc; |
|
// set pts information |
|
if (st->codec->codec_type == CODEC_TYPE_VIDEO) |
|
av_set_pts_info(st, 64, 1, st->codec->time_base.den); |
|
else if (st->codec->codec_type == CODEC_TYPE_AUDIO) |
|
av_set_pts_info(st, 64, 1, st->codec->sample_rate); |
|
sc->duration = -1; |
|
|
|
sc->index = mxf_get_essence_container_ul_index(st->codec->codec_id); |
|
if (sc->index == -1) { |
|
av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, " |
|
"codec not currently supported in container\n", i); |
|
return -1; |
|
} |
|
|
|
if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) { |
|
if (st->codec->profile == FF_PROFILE_UNKNOWN || |
|
st->codec->level == FF_LEVEL_UNKNOWN) { |
|
av_log(s, AV_LOG_ERROR, "track %d: profile and level must be set for mpeg-2\n", i); |
|
return -1; |
|
} |
|
sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec); |
|
if (!sc->codec_ul) { |
|
av_log(s, AV_LOG_ERROR, "track %d: could not find codec ul for mpeg-2, " |
|
"unsupported profile/level\n", i); |
|
return -1; |
|
} |
|
} else |
|
sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul; |
|
|
|
if (!present[sc->index]) { |
|
mxf->essence_containers_indices[mxf->essence_container_count++] = sc->index; |
|
present[sc->index] = 1; |
|
} else |
|
present[sc->index]++; |
|
memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15); |
|
sc->track_essence_element_key[15] = present[sc->index]; |
|
PRINT_KEY(s, "track essence element key", sc->track_essence_element_key); |
|
} |
|
|
|
mxf_write_partition(s, 1, header_open_partition_key, 1); |
|
|
|
return 0; |
|
} |
|
|
|
static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt) |
|
{ |
|
ByteIOContext *pb = s->pb; |
|
AVStream *st = s->streams[pkt->stream_index]; |
|
MXFStreamContext *sc = st->priv_data; |
|
|
|
put_buffer(pb, sc->track_essence_element_key, 16); // write key |
|
klv_encode_ber_length(pb, pkt->size); // write length |
|
put_buffer(pb, pkt->data, pkt->size); // write value |
|
|
|
sc->duration = FFMAX(pkt->pts + pkt->duration, sc->duration); |
|
|
|
put_flush_packet(pb); |
|
return 0; |
|
} |
|
|
|
static int mxf_write_footer(AVFormatContext *s) |
|
{ |
|
MXFContext *mxf = s->priv_data; |
|
ByteIOContext *pb = s->pb; |
|
|
|
mxf->footer_partition_offset = url_ftell(pb); |
|
mxf_write_partition(s, 0, footer_partition_key, 0); |
|
if (!url_is_streamed(s->pb)) { |
|
url_fseek(pb, 0, SEEK_SET); |
|
mxf_write_partition(s, 1, header_closed_partition_key, 1); |
|
} |
|
mxf_free(s); |
|
return 0; |
|
} |
|
|
|
AVOutputFormat mxf_muxer = { |
|
"mxf", |
|
NULL_IF_CONFIG_SMALL("Material eXchange Format"), |
|
NULL, |
|
"mxf", |
|
sizeof(MXFContext), |
|
CODEC_ID_PCM_S16LE, |
|
CODEC_ID_MPEG2VIDEO, |
|
mxf_write_header, |
|
mxf_write_packet, |
|
mxf_write_footer, |
|
}; |
|
|
|
|
|
|