| /* |
| * MXF muxer |
| * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com> |
| * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail 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 |
| */ |
| |
| /* |
| * References |
| * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value |
| * SMPTE 377M MXF File Format Specifications |
| * SMPTE 379M MXF Generic Container |
| * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container |
| * SMPTE RP210: SMPTE Metadata Dictionary |
| * SMPTE RP224: Registry of SMPTE Universal Labels |
| */ |
| |
| //#define DEBUG |
| |
| #include <math.h> |
| #include <time.h> |
| |
| #include "libavutil/fifo.h" |
| #include "libavcodec/bytestream.h" |
| #include "audiointerleave.h" |
| #include "avformat.h" |
| #include "mxf.h" |
| |
| static const int NTSC_samples_per_frame[] = { 1602, 1601, 1602, 1601, 1602, 0 }; |
| static const int PAL_samples_per_frame[] = { 1920, 0 }; |
| |
| AVOutputFormat mxf_d10_muxer; |
| |
| #define EDIT_UNITS_PER_BODY 250 |
| #define KAG_SIZE 512 |
| |
| typedef struct { |
| int local_tag; |
| UID uid; |
| } MXFLocalTagPair; |
| |
| typedef struct { |
| uint8_t flags; |
| uint64_t offset; |
| unsigned slice_offset; ///< offset of audio slice |
| } MXFIndexEntry; |
| |
| typedef struct { |
| AudioInterleaveContext aic; |
| UID track_essence_element_key; |
| int index; ///< index in mxf_essence_container_uls table |
| const UID *codec_ul; |
| int order; ///< interleaving order if dts are equal |
| int interlaced; ///< wether picture is interlaced |
| int temporal_reordering; |
| AVRational aspect_ratio; ///< display aspect ratio |
| } MXFStreamContext; |
| |
| typedef struct { |
| UID container_ul; |
| UID element_ul; |
| UID codec_ul; |
| void (*write_desc)(); |
| } MXFContainerEssenceEntry; |
| |
| static const struct { |
| enum CodecID id; |
| int index; |
| } mxf_essence_mappings[] = { |
| { CODEC_ID_MPEG2VIDEO, 0 }, |
| { CODEC_ID_PCM_S24LE, 1 }, |
| { CODEC_ID_PCM_S16LE, 1 }, |
| { 0 } |
| }; |
| |
| static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st); |
| static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st); |
| static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st); |
| static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st); |
| static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st); |
| |
| static const MXFContainerEssenceEntry mxf_essence_container_uls[] = { |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 }, |
| mxf_write_mpegvideo_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_aes3_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_wav_desc }, |
| // D-10 625/50 PAL 50mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| // D-10 525/60 NTSC 50mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| // D-10 625/50 PAL 40mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| // D-10 525/60 NTSC 40mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| // D-10 625/50 PAL 30mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| // D-10 525/60 NTSC 30mb/s |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, |
| mxf_write_cdci_desc }, |
| { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, |
| { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 }, |
| { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, |
| mxf_write_generic_sound_desc }, |
| { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
| { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
| { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, |
| NULL }, |
| }; |
| |
| typedef struct MXFContext { |
| int64_t footer_partition_offset; |
| int essence_container_count; |
| AVRational time_base; |
| int header_written; |
| MXFIndexEntry *index_entries; |
| unsigned edit_units_count; |
| uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8) |
| uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise) |
| int last_indexed_edit_unit; |
| uint64_t *body_partition_offset; |
| unsigned body_partitions_count; |
| int last_key_index; ///< index of last key frame |
| uint64_t duration; |
| AVStream *timecode_track; |
| int timecode_base; ///< rounded time code base (25 or 30) |
| int timecode_start; ///< frame number computed from mpeg-2 gop header timecode |
| int timecode_drop_frame; ///< time code use drop frame method frop mpeg-2 essence gop header |
| int edit_unit_byte_count; ///< fixed edit unit byte count |
| uint64_t body_offset; |
| } MXFContext; |
| |
| static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; |
| static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13,0x00,0x00,0x00 }; |
| |
| /** |
| * complete key for operation pattern, partitions, and primer pack |
| */ |
| static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 }; |
| static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete |
| static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 }; |
| static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 }; |
| static const uint8_t random_index_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x11,0x01,0x00 }; |
| 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 |
| 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 |
| static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 }; |
| static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete |
| |
| /** |
| * partial key for header metadata |
| */ |
| static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 }; |
| static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 }; |
| |
| /** |
| * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html |
| */ |
| static const MXFLocalTagPair mxf_local_tag_batch[] = { |
| // preface set |
| { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */ |
| { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */ |
| { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */ |
| { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */ |
| { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */ |
| { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */ |
| { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */ |
| { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */ |
| // Identification |
| { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */ |
| { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */ |
| { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */ |
| { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */ |
| { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */ |
| { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */ |
| // Content Storage |
| { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */ |
| { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */ |
| // Essence Container Data |
| { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */ |
| { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */ |
| // Package |
| { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */ |
| { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */ |
| { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */ |
| { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */ |
| { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */ |
| // Track |
| { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */ |
| { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */ |
| { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */ |
| { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */ |
| { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */ |
| // Sequence |
| { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */ |
| { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */ |
| { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */ |
| // Source Clip |
| { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */ |
| { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */ |
| { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */ |
| // Timecode Component |
| { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */ |
| { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */ |
| { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */ |
| // File Descriptor |
| { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */ |
| { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */ |
| { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */ |
| { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */ |
| // Generic Picture Essence Descriptor |
| { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */ |
| { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */ |
| { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */ |
| { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */ |
| { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */ |
| { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */ |
| { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */ |
| { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */ |
| // CDCI Picture Essence Descriptor |
| { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */ |
| { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */ |
| // Generic Sound Essence Descriptor |
| { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */ |
| { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */ |
| { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */ |
| { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */ |
| { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */ |
| // Index Table Segment |
| { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */ |
| { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */ |
| { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */ |
| { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */ |
| { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */ |
| { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */ |
| { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */ |
| { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */ |
| // MPEG video Descriptor |
| { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */ |
| // Wave Audio Essence Descriptor |
| { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */ |
| { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */ |
| }; |
| |
| static void mxf_write_uuid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) |
| { |
| put_buffer(pb, uuid_base, 12); |
| put_be16(pb, type); |
| put_be16(pb, value); |
| } |
| |
| static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value) |
| { |
| put_buffer(pb, umid_base, 16); |
| mxf_write_uuid(pb, type, value); |
| } |
| |
| static void mxf_write_refs_count(ByteIOContext *pb, int ref_count) |
| { |
| put_be32(pb, ref_count); |
| put_be32(pb, 16); |
| } |
| |
| static int klv_ber_length(uint64_t len) |
| { |
| if (len < 128) |
| return 1; |
| else |
| return (av_log2(len) >> 3) + 2; |
| } |
| |
| static int klv_encode_ber_length(ByteIOContext *pb, uint64_t len) |
| { |
| // Determine the best BER size |
| int size; |
| if (len < 128) { |
| //short form |
| put_byte(pb, len); |
| return 1; |
| } |
| |
| size = (av_log2(len) >> 3) + 1; |
| |
| // long form |
| put_byte(pb, 0x80 + size); |
| while(size) { |
| size--; |
| put_byte(pb, len >> 8 * size & 0xff); |
| } |
| return 0; |
| } |
| |
| static void klv_encode_ber4_length(ByteIOContext *pb, int len) |
| { |
| put_byte(pb, 0x80 + 3); |
| put_be24(pb, len); |
| } |
| |
| /* |
| * Get essence container ul index |
| */ |
| static int mxf_get_essence_container_ul_index(enum CodecID id) |
| { |
| int i; |
| for (i = 0; mxf_essence_mappings[i].id; i++) |
| if (mxf_essence_mappings[i].id == id) |
| return mxf_essence_mappings[i].index; |
| return -1; |
| } |
| |
| static void mxf_write_primer_pack(AVFormatContext *s) |
| { |
| ByteIOContext *pb = s->pb; |
| int local_tag_number, i = 0; |
| |
| local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch); |
| |
| put_buffer(pb, primer_pack_key, 16); |
| klv_encode_ber_length(pb, local_tag_number * 18 + 8); |
| |
| put_be32(pb, local_tag_number); // local_tag num |
| put_be32(pb, 18); // item size, always 18 according to the specs |
| |
| for (i = 0; i < local_tag_number; i++) { |
| put_be16(pb, mxf_local_tag_batch[i].local_tag); |
| put_buffer(pb, mxf_local_tag_batch[i].uid, 16); |
| } |
| } |
| |
| static void mxf_write_local_tag(ByteIOContext *pb, int size, int tag) |
| { |
| put_be16(pb, tag); |
| put_be16(pb, size); |
| } |
| |
| static void mxf_write_metadata_key(ByteIOContext *pb, unsigned int value) |
| { |
| put_buffer(pb, header_metadata_key, 13); |
| put_be24(pb, value); |
| } |
| |
| static void mxf_free(AVFormatContext *s) |
| { |
| int i; |
| |
| for (i = 0; i < s->nb_streams; i++) { |
| AVStream *st = s->streams[i]; |
| av_freep(&st->priv_data); |
| } |
| } |
| |
| static const MXFCodecUL *mxf_get_data_definition_ul(int type) |
| { |
| const MXFCodecUL *uls = ff_mxf_data_definition_uls; |
| while (uls->uid[0]) { |
| if (type == uls->id) |
| break; |
| uls++; |
| } |
| return uls; |
| } |
| |
| static void mxf_write_essence_container_refs(AVFormatContext *s) |
| { |
| MXFContext *c = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int i; |
| |
| mxf_write_refs_count(pb, c->essence_container_count); |
| av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count); |
| for (i = 0; i < c->essence_container_count; i++) { |
| MXFStreamContext *sc = s->streams[i]->priv_data; |
| put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); |
| } |
| } |
| |
| 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); |
| |
| // last modified date |
| mxf_write_local_tag(pb, 8, 0x3B02); |
| put_be64(pb, mxf->timestamp); |
| |
| // write version |
| mxf_write_local_tag(pb, 2, 0x3B05); |
| put_be16(pb, 258); // v1.2 |
| |
| // 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); |
| |
| // operational pattern |
| 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) |
| { |
| MXFContext *mxf = s->priv_data; |
| 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); |
| |
| // modification date |
| mxf_write_local_tag(pb, 8, 0x3C06); |
| put_be64(pb, mxf->timestamp); |
| } |
| |
| 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, 92); |
| |
| // 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); |
| |
| // write essence container data |
| mxf_write_local_tag(pb, 8 + 16, 0x1902); |
| mxf_write_refs_count(pb, 1); |
| mxf_write_uuid(pb, EssenceContainerData, 0); |
| } |
| |
| static void mxf_write_track(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| { |
| MXFContext *mxf = s->priv_data; |
| 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+2); |
| |
| // 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, mxf->time_base.den); |
| put_be32(pb, mxf->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 const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 }; |
| |
| static void mxf_write_common_fields(AVFormatContext *s, AVStream *st) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| |
| // find data define uls |
| mxf_write_local_tag(pb, 16, 0x0201); |
| if (st == mxf->timecode_track) |
| put_buffer(pb, smpte_12m_timecode_track_data_ul, 16); |
| else { |
| const MXFCodecUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type); |
| put_buffer(pb, data_def_ul->uid, 16); |
| } |
| |
| // write duration |
| mxf_write_local_tag(pb, 8, 0x0202); |
| put_be64(pb, mxf->duration); |
| } |
| |
| static void mxf_write_sequence(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| enum MXFMetadataSetType component; |
| |
| 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(s, st); |
| |
| // write structural component |
| mxf_write_local_tag(pb, 16 + 8, 0x1001); |
| mxf_write_refs_count(pb, 1); |
| if (st == mxf->timecode_track) |
| component = TimecodeComponent; |
| else |
| component = SourceClip; |
| if (type == SourcePackage) |
| component += TypeBottom; |
| mxf_write_uuid(pb, component, st->index); |
| } |
| |
| static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, enum MXFMetadataSetType type) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| |
| mxf_write_metadata_key(pb, 0x011400); |
| klv_encode_ber_length(pb, 75); |
| |
| // UID |
| mxf_write_local_tag(pb, 16, 0x3C0A); |
| mxf_write_uuid(pb, type == MaterialPackage ? TimecodeComponent : |
| TimecodeComponent + TypeBottom, st->index); |
| |
| mxf_write_common_fields(s, st); |
| |
| // Start Time Code |
| mxf_write_local_tag(pb, 8, 0x1501); |
| put_be64(pb, mxf->timecode_start); |
| |
| // Rounded Time Code Base |
| mxf_write_local_tag(pb, 2, 0x1502); |
| put_be16(pb, mxf->timecode_base); |
| |
| // Drop Frame |
| mxf_write_local_tag(pb, 1, 0x1503); |
| put_byte(pb, mxf->timecode_drop_frame); |
| } |
| |
| 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(s, 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+2); |
| } |
| |
| static void mxf_write_multi_descriptor(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| const uint8_t *ul; |
| 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, mxf->time_base.den); |
| put_be32(pb, mxf->time_base.num); |
| |
| // write essence container ul |
| mxf_write_local_tag(pb, 16, 0x3004); |
| if (mxf->essence_container_count > 1) |
| ul = multiple_desc_ul; |
| else { |
| MXFStreamContext *sc = s->streams[0]->priv_data; |
| ul = mxf_essence_container_uls[sc->index].container_ul; |
| } |
| put_buffer(pb, 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(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| { |
| MXFContext *mxf = s->priv_data; |
| MXFStreamContext *sc = st->priv_data; |
| ByteIOContext *pb = s->pb; |
| |
| put_buffer(pb, key, 16); |
| klv_encode_ber_length(pb, size+20+8+12+20); |
| |
| 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+2); |
| |
| mxf_write_local_tag(pb, 8, 0x3001); |
| put_be32(pb, mxf->time_base.den); |
| put_be32(pb, mxf->time_base.num); |
| |
| mxf_write_local_tag(pb, 16, 0x3004); |
| put_buffer(pb, mxf_essence_container_uls[sc->index].container_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 const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 }; |
| static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 }; |
| static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 }; |
| |
| static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| { |
| MXFStreamContext *sc = st->priv_data; |
| ByteIOContext *pb = s->pb; |
| int stored_height = (st->codec->height+15)/16*16; |
| int display_height; |
| int f1, f2; |
| |
| mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20); |
| |
| mxf_write_local_tag(pb, 4, 0x3203); |
| put_be32(pb, st->codec->width); |
| |
| mxf_write_local_tag(pb, 4, 0x3202); |
| put_be32(pb, stored_height>>sc->interlaced); |
| |
| mxf_write_local_tag(pb, 4, 0x3209); |
| put_be32(pb, st->codec->width); |
| |
| if (st->codec->height == 608) // PAL + VBI |
| display_height = 576; |
| else if (st->codec->height == 512) // NTSC + VBI |
| display_height = 486; |
| else |
| display_height = st->codec->height; |
| |
| mxf_write_local_tag(pb, 4, 0x3208); |
| put_be32(pb, display_height>>sc->interlaced); |
| |
| // component depth |
| mxf_write_local_tag(pb, 4, 0x3301); |
| put_be32(pb, 8); |
| |
| // horizontal subsampling |
| mxf_write_local_tag(pb, 4, 0x3302); |
| put_be32(pb, 2); |
| |
| // frame layout |
| mxf_write_local_tag(pb, 1, 0x320C); |
| put_byte(pb, sc->interlaced); |
| |
| // video line map |
| switch (st->codec->height) { |
| case 576: f1 = 23; f2 = 336; break; |
| case 608: f1 = 7; f2 = 320; break; |
| case 480: f1 = 20; f2 = 283; break; |
| case 512: f1 = 7; f2 = 270; break; |
| case 720: f1 = 26; f2 = 0; break; // progressive |
| case 1080: f1 = 21; f2 = 584; break; |
| default: f1 = 0; f2 = 0; break; |
| } |
| |
| if (!sc->interlaced) { |
| f2 = 0; |
| f1 *= 2; |
| } |
| |
| mxf_write_local_tag(pb, 12+sc->interlaced*4, 0x320D); |
| put_be32(pb, sc->interlaced ? 2 : 1); |
| put_be32(pb, 4); |
| put_be32(pb, f1); |
| if (sc->interlaced) |
| put_be32(pb, f2); |
| |
| mxf_write_local_tag(pb, 8, 0x320E); |
| put_be32(pb, sc->aspect_ratio.num); |
| put_be32(pb, sc->aspect_ratio.den); |
| |
| mxf_write_local_tag(pb, 16, 0x3201); |
| put_buffer(pb, *sc->codec_ul, 16); |
| } |
| |
| static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st) |
| { |
| mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key, 0); |
| } |
| |
| static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) |
| { |
| ByteIOContext *pb = s->pb; |
| |
| mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key, 8); |
| |
| // bit rate |
| mxf_write_local_tag(pb, 4, 0x8000); |
| put_be32(pb, st->codec->bit_rate); |
| } |
| |
| static void mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| { |
| ByteIOContext *pb = s->pb; |
| |
| mxf_write_generic_desc(s, st, key, size+5+12+8+8); |
| |
| // audio locked |
| mxf_write_local_tag(pb, 1, 0x3D02); |
| put_byte(pb, 1); |
| |
| // 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, av_get_bits_per_sample(st->codec->codec_id)); |
| } |
| |
| static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size) |
| { |
| ByteIOContext *pb = s->pb; |
| |
| mxf_write_generic_sound_common(s, st, key, size+6+8); |
| |
| mxf_write_local_tag(pb, 2, 0x3D0A); |
| put_be16(pb, st->codec->block_align); |
| |
| // avg bytes per sec |
| mxf_write_local_tag(pb, 4, 0x3D09); |
| put_be32(pb, st->codec->block_align*st->codec->sample_rate); |
| } |
| |
| static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st) |
| { |
| mxf_write_wav_common(s, st, mxf_wav_descriptor_key, 0); |
| } |
| |
| static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st) |
| { |
| mxf_write_wav_common(s, st, mxf_aes3_descriptor_key, 0); |
| } |
| |
| static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st) |
| { |
| mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key, 0); |
| } |
| |
| static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int i, track_count = s->nb_streams+1; |
| |
| 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*track_count); |
| } else { |
| mxf_write_metadata_key(pb, 0x013700); |
| PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16); |
| klv_encode_ber_length(pb, 112 + 16*track_count); // 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); |
| |
| // package creation date |
| mxf_write_local_tag(pb, 8, 0x4405); |
| put_be64(pb, mxf->timestamp); |
| |
| // package modified date |
| mxf_write_local_tag(pb, 8, 0x4404); |
| put_be64(pb, mxf->timestamp); |
| |
| // write track refs |
| mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); |
| mxf_write_refs_count(pb, track_count); |
| mxf_write_uuid(pb, type == MaterialPackage ? Track : |
| Track + TypeBottom, -1); // timecode track |
| 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); |
| } |
| |
| // write timecode track |
| mxf_write_track(s, mxf->timecode_track, type); |
| mxf_write_sequence(s, mxf->timecode_track, type); |
| mxf_write_timecode_component(s, mxf->timecode_track, type); |
| |
| 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_essence_container_data(AVFormatContext *s) |
| { |
| ByteIOContext *pb = s->pb; |
| |
| mxf_write_metadata_key(pb, 0x012300); |
| klv_encode_ber_length(pb, 72); |
| |
| mxf_write_local_tag(pb, 16, 0x3C0A); // Instance UID |
| mxf_write_uuid(pb, EssenceContainerData, 0); |
| |
| mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID |
| mxf_write_umid(pb, SourcePackage, 0); |
| |
| mxf_write_local_tag(pb, 4, 0x3F07); // BodySID |
| put_be32(pb, 1); |
| |
| mxf_write_local_tag(pb, 4, 0x3F06); // IndexSID |
| put_be32(pb, 2); |
| |
| return 0; |
| } |
| |
| 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); |
| mxf_write_essence_container_data(s); |
| return 0; |
| } |
| |
| static unsigned klv_fill_size(uint64_t size) |
| { |
| unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1)); |
| if (pad < 20) // smallest fill item possible |
| return pad + KAG_SIZE; |
| else |
| return pad & (KAG_SIZE-1); |
| } |
| |
| static void mxf_write_index_table_segment(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int i, j; |
| int temporal_reordering = 0; |
| int key_index = mxf->last_key_index; |
| |
| av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count); |
| |
| if (!mxf->edit_units_count && !mxf->edit_unit_byte_count) |
| return; |
| |
| put_buffer(pb, index_table_segment_key, 16); |
| |
| if (mxf->edit_unit_byte_count) { |
| klv_encode_ber_length(pb, 80); |
| } else { |
| klv_encode_ber_length(pb, 85 + 12+(s->nb_streams+1)*6 + |
| 12+mxf->edit_units_count*(11+mxf->slice_count*4)); |
| } |
| |
| // instance id |
| mxf_write_local_tag(pb, 16, 0x3C0A); |
| mxf_write_uuid(pb, IndexTableSegment, 0); |
| |
| // index edit rate |
| mxf_write_local_tag(pb, 8, 0x3F0B); |
| put_be32(pb, mxf->time_base.den); |
| put_be32(pb, mxf->time_base.num); |
| |
| // index start position |
| mxf_write_local_tag(pb, 8, 0x3F0C); |
| put_be64(pb, mxf->last_indexed_edit_unit); |
| |
| // index duration |
| mxf_write_local_tag(pb, 8, 0x3F0D); |
| put_be64(pb, mxf->edit_units_count); |
| |
| // edit unit byte count |
| mxf_write_local_tag(pb, 4, 0x3F05); |
| put_be32(pb, mxf->edit_unit_byte_count); |
| |
| // index sid |
| mxf_write_local_tag(pb, 4, 0x3F06); |
| put_be32(pb, 2); |
| |
| // body sid |
| mxf_write_local_tag(pb, 4, 0x3F07); |
| put_be32(pb, 1); |
| |
| if (!mxf->edit_unit_byte_count) { |
| // real slice count - 1 |
| mxf_write_local_tag(pb, 1, 0x3F08); |
| put_byte(pb, mxf->slice_count); |
| |
| // delta entry array |
| mxf_write_local_tag(pb, 8 + (s->nb_streams+1)*6, 0x3F09); |
| put_be32(pb, s->nb_streams+1); // num of entries |
| put_be32(pb, 6); // size of one entry |
| // write system item delta entry |
| put_byte(pb, 0); |
| put_byte(pb, 0); // slice entry |
| put_be32(pb, 0); // element delta |
| for (i = 0; i < s->nb_streams; i++) { |
| AVStream *st = s->streams[i]; |
| MXFStreamContext *sc = st->priv_data; |
| put_byte(pb, sc->temporal_reordering); |
| if (sc->temporal_reordering) |
| temporal_reordering = 1; |
| if (i == 0) { // video track |
| put_byte(pb, 0); // slice number |
| put_be32(pb, KAG_SIZE); // system item size including klv fill |
| } else { // audio track |
| unsigned audio_frame_size = sc->aic.samples[0]*sc->aic.sample_size; |
| audio_frame_size += klv_fill_size(audio_frame_size); |
| put_byte(pb, 1); |
| put_be32(pb, (i-1)*audio_frame_size); // element delta |
| } |
| } |
| |
| mxf_write_local_tag(pb, 8 + mxf->edit_units_count*(11+mxf->slice_count*4), 0x3F0A); |
| put_be32(pb, mxf->edit_units_count); // num of entries |
| put_be32(pb, 11+mxf->slice_count*4); // size of one entry |
| for (i = 0; i < mxf->edit_units_count; i++) { |
| if (temporal_reordering) { |
| int temporal_offset = 0; |
| for (j = i+1; j < mxf->edit_units_count; j++) { |
| temporal_offset++; |
| if (mxf->index_entries[j].flags & 0x10) { // backward prediction |
| // next is not b, so is reordered |
| if (!(mxf->index_entries[i+1].flags & 0x10)) { |
| if ((mxf->index_entries[i].flags & 0x11) == 0) // i frame |
| temporal_offset = 0; |
| else |
| temporal_offset = -temporal_offset; |
| } |
| break; |
| } |
| } |
| put_byte(pb, temporal_offset); |
| } else |
| put_byte(pb, 0); |
| if (!(mxf->index_entries[i].flags & 0x33)) { // I frame |
| mxf->last_key_index = key_index; |
| key_index = i; |
| } |
| if (mxf->index_entries[i].flags & 0x10 && // backward prediction |
| !(mxf->index_entries[key_index].flags & 0x80)) { // open gop |
| put_byte(pb, mxf->last_key_index - i); |
| } else { |
| put_byte(pb, key_index - i); // key frame offset |
| if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward |
| mxf->last_key_index = key_index; |
| } |
| put_byte(pb, mxf->index_entries[i].flags); |
| // stream offset |
| put_be64(pb, mxf->index_entries[i].offset); |
| if (s->nb_streams > 1) |
| put_be32(pb, mxf->index_entries[i].slice_offset); |
| } |
| |
| mxf->last_key_index = key_index - mxf->edit_units_count; |
| mxf->last_indexed_edit_unit += mxf->edit_units_count; |
| mxf->edit_units_count = 0; |
| } |
| } |
| |
| static void mxf_write_klv_fill(AVFormatContext *s) |
| { |
| unsigned pad = klv_fill_size(url_ftell(s->pb)); |
| if (pad) { |
| put_buffer(s->pb, klv_fill_key, 16); |
| pad -= 16 + 4; |
| klv_encode_ber4_length(s->pb, pad); |
| for (; pad; pad--) |
| put_byte(s->pb, 0); |
| assert(!(url_ftell(s->pb) & (KAG_SIZE-1))); |
| } |
| } |
| |
| static void mxf_write_partition(AVFormatContext *s, int bodysid, |
| int indexsid, |
| const uint8_t *key, int write_metadata) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int64_t header_byte_count_offset; |
| unsigned index_byte_count = 0; |
| uint64_t partition_offset = url_ftell(pb); |
| |
| if (!mxf->edit_unit_byte_count && mxf->edit_units_count) |
| index_byte_count = 85 + 12+(s->nb_streams+1)*6 + |
| 12+mxf->edit_units_count*(11+mxf->slice_count*4); |
| else if (mxf->edit_unit_byte_count && indexsid) |
| index_byte_count = 80; |
| |
| if (index_byte_count) { |
| // add encoded ber length |
| index_byte_count += 16 + klv_ber_length(index_byte_count); |
| index_byte_count += klv_fill_size(index_byte_count); |
| } |
| |
| if (!memcmp(key, body_partition_key, 16)) { |
| mxf->body_partition_offset = |
| av_realloc(mxf->body_partition_offset, |
| (mxf->body_partitions_count+1)* |
| sizeof(*mxf->body_partition_offset)); |
| mxf->body_partition_offset[mxf->body_partitions_count++] = partition_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, KAG_SIZE); // KAGSize |
| |
| put_be64(pb, partition_offset); // ThisPartition |
| |
| if (!memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1) |
| put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition |
| else if (!memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count) |
| put_be64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition |
| else |
| put_be64(pb, 0); |
| |
| put_be64(pb, mxf->footer_partition_offset); // footerPartition |
| |
| // set offset |
| header_byte_count_offset = url_ftell(pb); |
| put_be64(pb, 0); // headerByteCount, update later |
| |
| // indexTable |
| put_be64(pb, index_byte_count); // indexByteCount |
| put_be32(pb, index_byte_count ? indexsid : 0); // indexSID |
| |
| // BodyOffset |
| if (bodysid && mxf->edit_units_count && mxf->body_partitions_count) { |
| put_be64(pb, mxf->body_offset); |
| } else |
| put_be64(pb, 0); |
| |
| put_be32(pb, bodysid); // bodySID |
| |
| // operational pattern |
| put_buffer(pb, op1a_ul, 16); |
| |
| // 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; |
| unsigned header_byte_count; |
| |
| mxf_write_klv_fill(s); |
| start = url_ftell(s->pb); |
| mxf_write_primer_pack(s); |
| mxf_write_header_metadata_sets(s); |
| pos = url_ftell(s->pb); |
| header_byte_count = pos - start + klv_fill_size(pos); |
| |
| // update header_byte_count |
| url_fseek(pb, header_byte_count_offset, SEEK_SET); |
| put_be64(pb, header_byte_count); |
| 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_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags) |
| { |
| MXFStreamContext *sc = st->priv_data; |
| MXFContext *mxf = s->priv_data; |
| uint32_t c = -1; |
| int i; |
| |
| *flags = 0; |
| |
| for(i = 0; i < pkt->size - 4; i++) { |
| c = (c<<8) + pkt->data[i]; |
| if (c == 0x1B5) { |
| if (i + 2 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x10) { // seq ext |
| st->codec->profile = pkt->data[i+1] & 0x07; |
| st->codec->level = pkt->data[i+2] >> 4; |
| } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext |
| sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame |
| break; |
| } |
| } else if (c == 0x1b8) { // gop |
| if (i + 4 < pkt->size) { |
| if (pkt->data[i+4]>>6 & 0x01) // closed |
| *flags |= 0x80; // random access |
| if (!mxf->header_written) { |
| unsigned hours = (pkt->data[i+1]>>2) & 0x1f; |
| unsigned minutes = ((pkt->data[i+1] & 0x03) << 4) | (pkt->data[i+2]>>4); |
| unsigned seconds = ((pkt->data[i+2] & 0x07) << 3) | (pkt->data[i+3]>>5); |
| unsigned frames = ((pkt->data[i+3] & 0x1f) << 1) | (pkt->data[i+4]>>7); |
| mxf->timecode_drop_frame = !!(pkt->data[i+1] & 0x80); |
| mxf->timecode_start = (hours*3600 + minutes*60 + seconds) * |
| mxf->timecode_base + frames; |
| if (mxf->timecode_drop_frame) { |
| unsigned tminutes = 60 * hours + minutes; |
| mxf->timecode_start -= 2 * (tminutes - tminutes / 10); |
| } |
| av_log(s, AV_LOG_DEBUG, "frame %d %d:%d:%d%c%d\n", mxf->timecode_start, |
| hours, minutes, seconds, mxf->timecode_drop_frame ? ';':':', frames); |
| } |
| } |
| } else if (c == 0x1b3) { // seq |
| *flags |= 0x40; |
| if (i + 4 < pkt->size) { |
| switch ((pkt->data[i+4]>>4) & 0xf) { |
| case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break; |
| case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break; |
| case 4: sc->aspect_ratio = (AVRational){221,100}; break; |
| default: |
| av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den, |
| st->codec->width, st->codec->height, 1024*1024); |
| } |
| } |
| } else if (c == 0x100) { // pic |
| int pict_type = (pkt->data[i+2]>>3) & 0x07; |
| if (pict_type == 2) { // P frame |
| *flags |= 0x22; |
| st->codec->gop_size = 1; |
| } else if (pict_type == 3) { // B frame |
| *flags |= 0x33; |
| sc->temporal_reordering = -1; |
| } else if (!pict_type) { |
| av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n"); |
| return 0; |
| } |
| } |
| } |
| if (s->oformat != &mxf_d10_muxer) |
| sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec); |
| return !!sc->codec_ul; |
| } |
| |
| static uint64_t mxf_parse_timestamp(time_t timestamp) |
| { |
| struct tm *time = localtime(×tamp); |
| return (uint64_t)(time->tm_year+1900) << 48 | |
| (uint64_t)(time->tm_mon+1) << 40 | |
| (uint64_t) time->tm_mday << 32 | |
| time->tm_hour << 24 | |
| time->tm_min << 16 | |
| time->tm_sec << 8; |
| } |
| |
| static int mxf_write_header(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| int i; |
| uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0}; |
| const int *samples_per_frame = NULL; |
| |
| 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; |
| |
| if (st->codec->codec_type == CODEC_TYPE_VIDEO) { |
| if (i != 0) { |
| av_log(s, AV_LOG_ERROR, "video stream must be first track\n"); |
| return -1; |
| } |
| if (fabs(av_q2d(st->codec->time_base) - 1/25.0) < 0.0001) { |
| samples_per_frame = PAL_samples_per_frame; |
| mxf->time_base = (AVRational){ 1, 25 }; |
| mxf->timecode_base = 25; |
| } else if (fabs(av_q2d(st->codec->time_base) - 1001/30000.0) < 0.0001) { |
| samples_per_frame = NTSC_samples_per_frame; |
| mxf->time_base = (AVRational){ 1001, 30000 }; |
| mxf->timecode_base = 30; |
| } else { |
| av_log(s, AV_LOG_ERROR, "unsupported video frame rate\n"); |
| return -1; |
| } |
| av_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den); |
| if (s->oformat == &mxf_d10_muxer) { |
| if (st->codec->bit_rate == 50000000) |
| if (mxf->time_base.den == 25) sc->index = 3; |
| else sc->index = 5; |
| else if (st->codec->bit_rate == 40000000) |
| if (mxf->time_base.den == 25) sc->index = 7; |
| else sc->index = 9; |
| else if (st->codec->bit_rate == 30000000) |
| if (mxf->time_base.den == 25) sc->index = 11; |
| else sc->index = 13; |
| else { |
| av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n"); |
| return -1; |
| } |
| |
| mxf->edit_unit_byte_count = KAG_SIZE; // system element |
| mxf->edit_unit_byte_count += 16 + 4 + (uint64_t)st->codec->bit_rate * |
| mxf->time_base.num / (8*mxf->time_base.den); |
| mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); |
| mxf->edit_unit_byte_count += 16 + 4 + 4 + samples_per_frame[0]*8*4; |
| mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count); |
| } |
| } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) { |
| if (st->codec->sample_rate != 48000) { |
| av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n"); |
| return -1; |
| } |
| av_set_pts_info(st, 64, 1, st->codec->sample_rate); |
| if (s->oformat == &mxf_d10_muxer) { |
| if (st->index != 1) { |
| av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n"); |
| return -1; |
| } |
| if (st->codec->codec_id != CODEC_ID_PCM_S16LE && |
| st->codec->codec_id != CODEC_ID_PCM_S24LE) { |
| av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n"); |
| } |
| sc->index = ((MXFStreamContext*)s->streams[0]->priv_data)->index + 1; |
| } else |
| mxf->slice_count = 1; |
| } |
| |
| if (!sc->index) { |
| 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; |
| } |
| } |
| |
| sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul; |
| |
| 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); |
| |
| if (!present[sc->index]) |
| mxf->essence_container_count++; |
| present[sc->index]++; |
| } |
| |
| if (s->oformat == &mxf_d10_muxer) { |
| mxf->essence_container_count = 1; |
| } |
| |
| for (i = 0; i < s->nb_streams; i++) { |
| MXFStreamContext *sc = s->streams[i]->priv_data; |
| // update element count |
| sc->track_essence_element_key[13] = present[sc->index]; |
| sc->order = AV_RB32(sc->track_essence_element_key+12); |
| } |
| |
| mxf->timestamp = mxf_parse_timestamp(s->timestamp); |
| mxf->duration = -1; |
| |
| mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track)); |
| if (!mxf->timecode_track) |
| return AVERROR(ENOMEM); |
| mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext)); |
| if (!mxf->timecode_track->priv_data) |
| return AVERROR(ENOMEM); |
| mxf->timecode_track->index = -1; |
| |
| if (!samples_per_frame) |
| samples_per_frame = PAL_samples_per_frame; |
| |
| if (ff_audio_interleave_init(s, samples_per_frame, mxf->time_base) < 0) |
| return -1; |
| |
| return 0; |
| } |
| |
| static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 }; |
| static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 }; |
| |
| static uint32_t ff_framenum_to_12m_time_code(unsigned frame, int drop, int fps) |
| { |
| return (0 << 31) | // color frame flag |
| (0 << 30) | // drop frame flag |
| ( ((frame % fps) / 10) << 28) | // tens of frames |
| ( ((frame % fps) % 10) << 24) | // units of frames |
| (0 << 23) | // field phase (NTSC), b0 (PAL) |
| ((((frame / fps) % 60) / 10) << 20) | // tens of seconds |
| ((((frame / fps) % 60) % 10) << 16) | // units of seconds |
| (0 << 15) | // b0 (NTSC), b2 (PAL) |
| ((((frame / (fps * 60)) % 60) / 10) << 12) | // tens of minutes |
| ((((frame / (fps * 60)) % 60) % 10) << 8) | // units of minutes |
| (0 << 7) | // b1 |
| (0 << 6) | // b2 (NSC), field phase (PAL) |
| ((((frame / (fps * 3600) % 24)) / 10) << 4) | // tens of hours |
| ( (frame / (fps * 3600) % 24)) % 10; // units of hours |
| } |
| |
| static void mxf_write_system_item(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| unsigned frame; |
| uint32_t time_code; |
| |
| frame = mxf->timecode_start + mxf->last_indexed_edit_unit + mxf->edit_units_count; |
| |
| // write system metadata pack |
| put_buffer(pb, system_metadata_pack_key, 16); |
| klv_encode_ber4_length(pb, 57); |
| put_byte(pb, 0x5c); // UL, user date/time stamp, picture and sound item present |
| put_byte(pb, 0x04); // content package rate |
| put_byte(pb, 0x00); // content package type |
| put_be16(pb, 0x00); // channel handle |
| put_be16(pb, frame); // continuity count |
| if (mxf->essence_container_count > 1) |
| put_buffer(pb, multiple_desc_ul, 16); |
| else { |
| MXFStreamContext *sc = s->streams[0]->priv_data; |
| put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16); |
| } |
| put_byte(pb, 0); |
| put_be64(pb, 0); |
| put_be64(pb, 0); // creation date/time stamp |
| |
| put_byte(pb, 0x81); // SMPTE 12M time code |
| time_code = ff_framenum_to_12m_time_code(frame, mxf->timecode_drop_frame, mxf->timecode_base); |
| put_be32(pb, time_code); |
| put_be32(pb, 0); // binary group data |
| put_be64(pb, 0); |
| |
| // write system metadata package set |
| put_buffer(pb, system_metadata_package_set_key, 16); |
| klv_encode_ber4_length(pb, 35); |
| put_byte(pb, 0x83); // UMID |
| put_be16(pb, 0x20); |
| mxf_write_umid(pb, SourcePackage, 0); |
| } |
| |
| static void mxf_write_d10_video_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int packet_size = (uint64_t)st->codec->bit_rate*mxf->time_base.num / |
| (8*mxf->time_base.den); // frame size |
| int pad; |
| |
| packet_size += 16 + 4; |
| packet_size += klv_fill_size(packet_size); |
| |
| klv_encode_ber4_length(pb, pkt->size); |
| put_buffer(pb, pkt->data, pkt->size); |
| |
| // ensure CBR muxing by padding to correct video frame size |
| pad = packet_size - pkt->size - 16 - 4; |
| if (pad > 20) { |
| put_buffer(s->pb, klv_fill_key, 16); |
| pad -= 16 + 4; |
| klv_encode_ber4_length(s->pb, pad); |
| for (; pad; pad--) |
| put_byte(s->pb, 0); |
| assert(!(url_ftell(s->pb) & (KAG_SIZE-1))); |
| } else { |
| av_log(s, AV_LOG_WARNING, "cannot fill d-10 video packet\n"); |
| for (; pad > 0; pad--) |
| put_byte(s->pb, 0); |
| } |
| } |
| |
| static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| int frame_size = pkt->size / st->codec->block_align; |
| uint8_t *samples = pkt->data; |
| uint8_t *end = pkt->data + pkt->size; |
| int i; |
| |
| klv_encode_ber4_length(pb, 4 + frame_size*4*8); |
| |
| put_byte(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1)); |
| put_le16(pb, frame_size); |
| put_byte(pb, (1<<st->codec->channels)-1); |
| |
| while (samples < end) { |
| for (i = 0; i < st->codec->channels; i++) { |
| uint32_t sample; |
| if (st->codec->codec_id == CODEC_ID_PCM_S24LE) { |
| sample = AV_RL24(samples)<< 4; |
| samples += 3; |
| } else { |
| sample = AV_RL16(samples)<<12; |
| samples += 2; |
| } |
| put_le32(pb, sample | i); |
| } |
| for (; i < 8; i++) |
| put_le32(pb, i); |
| } |
| } |
| |
| static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| AVStream *st = s->streams[pkt->stream_index]; |
| MXFStreamContext *sc = st->priv_data; |
| int flags = 0; |
| |
| if (!mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) { |
| mxf->index_entries = av_realloc(mxf->index_entries, |
| (mxf->edit_units_count + EDIT_UNITS_PER_BODY)*sizeof(*mxf->index_entries)); |
| if (!mxf->index_entries) { |
| av_log(s, AV_LOG_ERROR, "could not allocate index entries\n"); |
| return -1; |
| } |
| } |
| |
| if (st->codec->codec_id == CODEC_ID_MPEG2VIDEO) { |
| if (!mxf_parse_mpeg2_frame(s, st, pkt, &flags)) { |
| av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n"); |
| return -1; |
| } |
| } |
| |
| if (!mxf->header_written) { |
| if (mxf->edit_unit_byte_count) { |
| mxf_write_partition(s, 1, 2, header_open_partition_key, 1); |
| mxf_write_klv_fill(s); |
| mxf_write_index_table_segment(s); |
| } else { |
| mxf_write_partition(s, 0, 0, header_open_partition_key, 1); |
| } |
| mxf->header_written = 1; |
| } |
| |
| if (st->index == 0) { |
| if (!mxf->edit_unit_byte_count && |
| (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) && |
| !(flags & 0x33)) { // I frame, Gop start |
| mxf_write_klv_fill(s); |
| mxf_write_partition(s, 1, 2, body_partition_key, 0); |
| |
| mxf_write_klv_fill(s); |
| mxf_write_index_table_segment(s); |
| } |
| |
| mxf_write_klv_fill(s); |
| mxf_write_system_item(s); |
| |
| if (!mxf->edit_unit_byte_count) { |
| mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset; |
| mxf->index_entries[mxf->edit_units_count].flags = flags; |
| mxf->body_offset += KAG_SIZE; // size of system element |
| } |
| mxf->edit_units_count++; |
| } else if (!mxf->edit_unit_byte_count && st->index == 1) { |
| mxf->index_entries[mxf->edit_units_count-1].slice_offset = |
| mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset; |
| } |
| |
| mxf_write_klv_fill(s); |
| put_buffer(pb, sc->track_essence_element_key, 16); // write key |
| if (s->oformat == &mxf_d10_muxer) { |
| if (st->codec->codec_type == CODEC_TYPE_VIDEO) |
| mxf_write_d10_video_packet(s, st, pkt); |
| else |
| mxf_write_d10_audio_packet(s, st, pkt); |
| } else { |
| klv_encode_ber4_length(pb, pkt->size); // write length |
| put_buffer(pb, pkt->data, pkt->size); |
| mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size); |
| } |
| |
| put_flush_packet(pb); |
| |
| return 0; |
| } |
| |
| static void mxf_write_random_index_pack(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| uint64_t pos = url_ftell(pb); |
| int i; |
| |
| put_buffer(pb, random_index_pack_key, 16); |
| klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count); |
| |
| if (mxf->edit_unit_byte_count) |
| put_be32(pb, 1); // BodySID of header partition |
| else |
| put_be32(pb, 0); |
| put_be64(pb, 0); // offset of header partition |
| |
| for (i = 0; i < mxf->body_partitions_count; i++) { |
| put_be32(pb, 1); // BodySID |
| put_be64(pb, mxf->body_partition_offset[i]); |
| } |
| |
| put_be32(pb, 0); // BodySID of footer partition |
| put_be64(pb, mxf->footer_partition_offset); |
| |
| put_be32(pb, url_ftell(pb) - pos + 4); |
| } |
| |
| static int mxf_write_footer(AVFormatContext *s) |
| { |
| MXFContext *mxf = s->priv_data; |
| ByteIOContext *pb = s->pb; |
| |
| mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count; |
| |
| mxf_write_klv_fill(s); |
| mxf->footer_partition_offset = url_ftell(pb); |
| if (mxf->edit_unit_byte_count) { // no need to repeat index |
| mxf_write_partition(s, 0, 0, footer_partition_key, 0); |
| } else { |
| mxf_write_partition(s, 0, 2, footer_partition_key, 0); |
| |
| mxf_write_klv_fill(s); |
| mxf_write_index_table_segment(s); |
| } |
| |
| mxf_write_klv_fill(s); |
| mxf_write_random_index_pack(s); |
| |
| if (!url_is_streamed(s->pb)) { |
| url_fseek(pb, 0, SEEK_SET); |
| if (mxf->edit_unit_byte_count) { |
| mxf_write_partition(s, 1, 2, header_closed_partition_key, 1); |
| mxf_write_klv_fill(s); |
| mxf_write_index_table_segment(s); |
| } else { |
| mxf_write_partition(s, 0, 0, header_closed_partition_key, 1); |
| } |
| } |
| |
| put_flush_packet(pb); |
| |
| ff_audio_interleave_close(s); |
| |
| av_freep(&mxf->index_entries); |
| av_freep(&mxf->body_partition_offset); |
| av_freep(&mxf->timecode_track->priv_data); |
| av_freep(&mxf->timecode_track); |
| |
| mxf_free(s); |
| |
| return 0; |
| } |
| |
| static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) |
| { |
| AVPacketList *pktl; |
| int stream_count = 0; |
| int streams[MAX_STREAMS]; |
| |
| memset(streams, 0, sizeof(streams)); |
| pktl = s->packet_buffer; |
| while (pktl) { |
| //av_log(s, AV_LOG_DEBUG, "show st:%d dts:%lld\n", pktl->pkt.stream_index, pktl->pkt.dts); |
| if (!streams[pktl->pkt.stream_index]) |
| stream_count++; |
| streams[pktl->pkt.stream_index]++; |
| pktl = pktl->next; |
| } |
| |
| if (stream_count && (s->nb_streams == stream_count || flush)) { |
| pktl = s->packet_buffer; |
| if (s->nb_streams != stream_count) { |
| AVPacketList *last = NULL; |
| // find last packet in edit unit |
| while (pktl) { |
| if (!stream_count || pktl->pkt.stream_index == 0) |
| break; |
| last = pktl; |
| pktl = pktl->next; |
| stream_count--; |
| } |
| // purge packet queue |
| while (pktl) { |
| AVPacketList *next = pktl->next; |
| av_free_packet(&pktl->pkt); |
| av_freep(&pktl); |
| pktl = next; |
| } |
| if (last) |
| last->next = NULL; |
| else { |
| s->packet_buffer = NULL; |
| goto out; |
| } |
| pktl = s->packet_buffer; |
| } |
| |
| *out = pktl->pkt; |
| //av_log(s, AV_LOG_DEBUG, "out st:%d dts:%lld\n", (*out).stream_index, (*out).dts); |
| s->packet_buffer = pktl->next; |
| av_freep(&pktl); |
| return 1; |
| } else { |
| out: |
| av_init_packet(out); |
| return 0; |
| } |
| } |
| |
| static int mxf_compare_timestamps(AVFormatContext *s, AVPacket *next, AVPacket *pkt) |
| { |
| MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data; |
| MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data; |
| |
| return next->dts > pkt->dts || |
| (next->dts == pkt->dts && sc->order < sc2->order); |
| } |
| |
| static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush) |
| { |
| return ff_audio_rechunk_interleave(s, out, pkt, flush, |
| mxf_interleave_get_packet, mxf_compare_timestamps); |
| } |
| |
| AVOutputFormat mxf_muxer = { |
| "mxf", |
| NULL_IF_CONFIG_SMALL("Material eXchange Format"), |
| "application/mxf", |
| "mxf", |
| sizeof(MXFContext), |
| CODEC_ID_PCM_S16LE, |
| CODEC_ID_MPEG2VIDEO, |
| mxf_write_header, |
| mxf_write_packet, |
| mxf_write_footer, |
| AVFMT_NOTIMESTAMPS, |
| NULL, |
| mxf_interleave, |
| }; |
| |
| AVOutputFormat mxf_d10_muxer = { |
| "mxf_d10", |
| NULL_IF_CONFIG_SMALL("Material eXchange Format, D-10 Mapping"), |
| "application/mxf", |
| NULL, |
| sizeof(MXFContext), |
| CODEC_ID_PCM_S16LE, |
| CODEC_ID_MPEG2VIDEO, |
| mxf_write_header, |
| mxf_write_packet, |
| mxf_write_footer, |
| AVFMT_NOTIMESTAMPS, |
| NULL, |
| mxf_interleave, |
| }; |
