//#define DEBUG
#include <math.h>
+#include <time.h>
#include "libavutil/fifo.h"
+#include "libavutil/random_seed.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 };
-#define MXF_INDEX_CLUSTER_SIZE 4096
+AVOutputFormat mxf_d10_muxer;
-typedef struct {
- AVFifoBuffer fifo;
- unsigned fifo_size; ///< current fifo size allocated
- uint64_t dts; ///< current dts
- int sample_size; ///< size of one sample all channels included
- const int *samples_per_frame; ///< must be 0 terminated
- const int *samples; ///< current samples per frame, pointer to samples_per_frame
- AVRational time_base; ///< time base of output audio packets
-} AudioInterleaveContext;
+#define EDIT_UNITS_PER_BODY 250
+#define KAG_SIZE 512
typedef struct {
int local_tag;
typedef struct {
uint8_t flags;
uint64_t offset;
- unsigned slice_offset[17]; // one video, 16 audio
+ unsigned slice_offset; ///< offset of audio slice
} MXFIndexEntry;
typedef struct {
UID track_essence_element_key;
int index; ///< index in mxf_essence_container_uls table
const UID *codec_ul;
- int64_t duration;
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 {
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,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
{ 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 },
typedef struct MXFContext {
int64_t footer_partition_offset;
int essence_container_count;
- uint8_t essence_containers_indices[FF_ARRAY_ELEMS(mxf_essence_container_uls)];
AVRational time_base;
int header_written;
MXFIndexEntry *index_entries;
unsigned edit_units_count;
- int edit_unit_start; ///< index of the stream starting edit unit
+ 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;
+ uint32_t instance_number;
+ uint8_t umid[16]; ///< unique material identifier
} 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 };
+static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
/**
* complete key for operation pattern, partitions, and primer pack
*/
-static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x01,0x00 };
+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
{ 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,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
+ { 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 */
{ 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,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
+ { 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,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
+ { 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 */
{ 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,0x34,0x01,0x01,0x01,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
+ { 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 */
put_be16(pb, value);
}
-static void mxf_write_umid(ByteIOContext *pb, enum MXFMetadataSetType type, int value)
+static void mxf_write_umid(AVFormatContext *s, int type)
{
- put_buffer(pb, umid_base, 16);
- mxf_write_uuid(pb, type, value);
+ MXFContext *mxf = s->priv_data;
+ put_buffer(s->pb, umid_ul, 13);
+ put_be24(s->pb, mxf->instance_number);
+ put_buffer(s->pb, mxf->umid, 15);
+ put_byte(s->pb, type);
}
static void mxf_write_refs_count(ByteIOContext *pb, int 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
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 const MXFDataDefinitionUL *mxf_get_data_definition_ul(enum CodecType type)
+static const MXFCodecUL *mxf_get_data_definition_ul(int type)
{
- const MXFDataDefinitionUL *uls = ff_mxf_data_definition_uls;
- while (uls->type != CODEC_TYPE_DATA) {
- if (type == uls->type)
+ const MXFCodecUL *uls = ff_mxf_data_definition_uls;
+ while (uls->uid[0]) {
+ if (type == uls->id)
break;
uls++;
}
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++) {
- 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);
+ MXFStreamContext *sc = s->streams[i]->priv_data;
+ put_buffer(pb, mxf_essence_container_uls[sc->index].container_ul, 16);
}
}
mxf_write_uuid(pb, Preface, 0);
PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
- // write creation date
+ // last modified date
mxf_write_local_tag(pb, 8, 0x3B02);
- put_be64(pb, s->timestamp);
+ put_be64(pb, mxf->timestamp);
// write version
mxf_write_local_tag(pb, 2, 0x3B05);
- put_be16(pb, 1);
+ put_be16(pb, 258); // v1.2
// write identification_refs
mxf_write_local_tag(pb, 16 + 8, 0x3B06);
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);
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";
// modification date
mxf_write_local_tag(pb, 8, 0x3C06);
- put_be64(pb, s->timestamp);
+ put_be64(pb, mxf->timestamp);
}
static void mxf_write_content_storage(AVFormatContext *s)
// write track id
mxf_write_local_tag(pb, 4, 0x4801);
- put_be32(pb, st->index);
+ put_be32(pb, st->index+2);
// write track number
mxf_write_local_tag(pb, 4, 0x4804);
mxf_write_uuid(pb, type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index);
}
-static void mxf_write_common_fields(ByteIOContext *pb, AVStream *st)
+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)
{
- const MXFDataDefinitionUL *data_def_ul = mxf_get_data_definition_ul(st->codec->codec_type);
- MXFStreamContext *sc = st->priv_data;
+ MXFContext *mxf = s->priv_data;
+ ByteIOContext *pb = s->pb;
// find data define uls
mxf_write_local_tag(pb, 16, 0x0201);
- put_buffer(pb, data_def_ul->uid, 16);
+ 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, sc->duration);
+ 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);
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);
+ mxf_write_common_fields(s, 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);
+ 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)
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);
+ mxf_write_common_fields(s, st);
// write start_position
mxf_write_local_tag(pb, 8, 0x1201);
for (i = 0; i < 4; i++)
put_be64(pb, 0);
} else
- mxf_write_umid(pb, SourcePackage, 0);
+ mxf_write_umid(s, 1);
// write source track id
mxf_write_local_tag(pb, 4, 0x1102);
if (type == SourcePackage)
put_be32(pb, 0);
else
- put_be32(pb, st->index);
+ 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);
// write essence container ul
mxf_write_local_tag(pb, 16, 0x3004);
- put_buffer(pb, multiple_desc_ul, 16);
+ 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);
ByteIOContext *pb = s->pb;
put_buffer(pb, key, 16);
- klv_encode_ber_length(pb, size);
+ 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);
+ put_be32(pb, st->index+2);
mxf_write_local_tag(pb, 8, 0x3001);
put_be32(pb, mxf->time_base.den);
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_mpegvideo_desc(AVFormatContext *s, AVStream *st)
+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;
- AVRational dar;
+ int display_height;
int f1, f2;
- mxf_write_generic_desc(s, st, mxf_mpegvideo_descriptor_key, 153+sc->interlaced*4);
+ 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, 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, st->codec->height>>sc->interlaced);
+ put_be32(pb, display_height>>sc->interlaced);
- // bit rate
- mxf_write_local_tag(pb, 4, 0x8000);
- put_be32(pb, st->codec->bit_rate);
+ // 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);
if (sc->interlaced)
put_be32(pb, f2);
- av_reduce(&dar.num, &dar.den,
- st->codec->width*st->codec->sample_aspect_ratio.num,
- st->codec->height*st->codec->sample_aspect_ratio.den,
- 1024*1024);
-
mxf_write_local_tag(pb, 8, 0x320E);
- put_be32(pb, dar.num);
- put_be32(pb, dar.den);
+ 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_generic_sound_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
+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_generic_desc(s, st, key, size);
+ 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_be32(pb, av_get_bits_per_sample(st->codec->codec_id));
}
-static void mxf_write_wav_common_desc(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
+static void mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key, unsigned size)
{
ByteIOContext *pb = s->pb;
- mxf_write_generic_sound_desc(s, st, key, size);
+ 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);
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
{
- mxf_write_wav_common_desc(s, st, mxf_wav_descriptor_key, 107);
+ 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_desc(s, st, mxf_aes3_descriptor_key, 107);
+ 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;
+ 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 * s->nb_streams);
+ 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 * s->nb_streams); // 20 bytes length for descriptor reference
+ klv_encode_ber_length(pb, 112 + 16*track_count); // 20 bytes length for descriptor reference
}
// write uid
// write package umid
mxf_write_local_tag(pb, 32, 0x4401);
- mxf_write_umid(pb, type, 0);
+ mxf_write_umid(s, type == SourcePackage);
PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
- // write create date
+ // package creation date
mxf_write_local_tag(pb, 8, 0x4405);
- put_be64(pb, 0);
+ put_be64(pb, mxf->timestamp);
- // write modified date
+ // package modified date
mxf_write_local_tag(pb, 8, 0x4404);
- put_be64(pb, 0);
+ put_be64(pb, mxf->timestamp);
// write track refs
- mxf_write_local_tag(pb, s->nb_streams * 16 + 8, 0x4403);
- mxf_write_refs_count(pb, s->nb_streams);
+ 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);
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_uuid(pb, EssenceContainerData, 0);
mxf_write_local_tag(pb, 32, 0x2701); // Linked Package UID
- mxf_write_umid(pb, SourcePackage, 0);
+ mxf_write_umid(s, 1);
mxf_write_local_tag(pb, 4, 0x3F07); // BodySID
put_be32(pb, 1);
return 0;
}
-static int mxf_write_index_table_segment(AVFormatContext *s)
+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, k, ret;
+ int i, j;
int temporal_reordering = 0;
- int last_key_index = 0, key_index = 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);
- ret = klv_encode_ber_length(pb, 109 + s->nb_streams*6 +
- mxf->edit_units_count*(11+(s->nb_streams-1)*4));
+
+ 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);
// index edit rate
mxf_write_local_tag(pb, 8, 0x3F0B);
- put_be32(pb, mxf->time_base.num);
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, 0);
+ put_be64(pb, mxf->last_indexed_edit_unit);
// index duration
mxf_write_local_tag(pb, 8, 0x3F0D);
// edit unit byte count
mxf_write_local_tag(pb, 4, 0x3F05);
- put_be32(pb, 0);
+ put_be32(pb, mxf->edit_unit_byte_count);
// index sid
mxf_write_local_tag(pb, 4, 0x3F06);
mxf_write_local_tag(pb, 4, 0x3F07);
put_be32(pb, 1);
- // slice count - 1
- mxf_write_local_tag(pb, 1, 0x3F08);
- put_byte(pb, s->nb_streams-1);
-
- // delta entry array
- mxf_write_local_tag(pb, 8 + s->nb_streams*6, 0x3F09);
- put_be32(pb, s->nb_streams); // num of entries
- put_be32(pb, 6); // size of one entry
- 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;
- put_byte(pb, i);
+ 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+(s->nb_streams-1)*4), 0x3F0A);
- put_be32(pb, mxf->edit_units_count); // num of entries
- put_be32(pb, 11+(s->nb_streams-1)*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;
+ 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;
}
- 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;
}
- put_byte(pb, temporal_offset);
- } else
- put_byte(pb, 0);
- if (!(mxf->index_entries[i].flags & 0x33)) { // I frame
- 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, last_key_index - i);
- } else {
- put_byte(pb, key_index - i); // key frame offset
- if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
- last_key_index = key_index;
- }
- put_byte(pb, mxf->index_entries[i].flags);
- // stream offset
- put_be64(pb, mxf->index_entries[i].offset - mxf->index_entries[0].offset);
- for (k = 0; k < s->nb_streams; k++) {
- if (mxf->index_entries[i].slice_offset[k])
- put_be32(pb, mxf->index_entries[i].slice_offset[k]);
+ 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;
}
+}
- return ret;
+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, unsigned index_byte_count,
+ 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, 1); // kagSize
+ put_be32(pb, KAG_SIZE); // KAGSize
+
+ put_be64(pb, partition_offset); // ThisPartition
- put_be64(pb, url_ftell(pb) - 25); // thisPartition
- put_be64(pb, 0); // previousPartition
+ 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
// indexTable
put_be64(pb, index_byte_count); // indexByteCount
- put_be32(pb, indexsid); // indexSID
- put_be64(pb, 0); // bodyOffset
+ 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
- put_buffer(pb, op1a_ul, 16); // operational pattern
+
+ // 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 = url_ftell(s->pb);
+ 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, pos - start);
+ put_be64(pb, header_byte_count);
url_fseek(pb, pos, SEEK_SET);
}
return NULL;
}
-static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
+static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt, int *flags)
{
- MXFContext *mxf = s->priv_data;
MXFStreamContext *sc = st->priv_data;
+ MXFContext *mxf = s->priv_data;
uint32_t c = -1;
int i;
- mxf->index_entries[mxf->edit_units_count].flags = 0;
+ *flags = 0;
for(i = 0; i < pkt->size - 4; i++) {
c = (c<<8) + pkt->data[i];
break;
}
} else if (c == 0x1b8) { // gop
- if (i + 4 < pkt->size && pkt->data[i+4]>>6 & 0x01) // closed
- mxf->index_entries[mxf->edit_units_count].flags |= 0x80; // random access
+ 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
- mxf->index_entries[mxf->edit_units_count].flags |= 0x40;
+ *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
- mxf->index_entries[mxf->edit_units_count].flags |= 0x22;
+ *flags |= 0x22;
st->codec->gop_size = 1;
} else if (pict_type == 3) { // B frame
- mxf->index_entries[mxf->edit_units_count].flags |= 0x33;
+ *flags |= 0x33;
sc->temporal_reordering = -1;
} else if (!pict_type) {
av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
}
}
}
- sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
+ if (s->oformat != &mxf_d10_muxer)
+ sc->codec_ul = mxf_get_mpeg2_codec_ul(st->codec);
return !!sc->codec_ul;
}
-static int ff_audio_interleave_init(AVFormatContext *s,
- const int *samples_per_frame,
- AVRational time_base)
+static uint64_t mxf_parse_timestamp(time_t timestamp)
{
- int i;
-
- if (!samples_per_frame)
- return -1;
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- AudioInterleaveContext *aic = st->priv_data;
-
- if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- aic->sample_size = (st->codec->channels *
- av_get_bits_per_sample(st->codec->codec_id)) / 8;
- if (!aic->sample_size) {
- av_log(s, AV_LOG_ERROR, "could not compute sample size\n");
- return -1;
- }
- aic->samples_per_frame = samples_per_frame;
- aic->samples = aic->samples_per_frame;
- aic->time_base = time_base;
-
- av_fifo_init(&aic->fifo, 100 * *aic->samples);
- }
- }
-
- return 0;
+ struct tm *time = gmtime(×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 void ff_audio_interleave_close(AVFormatContext *s)
+static void mxf_gen_umid(AVFormatContext *s)
{
- int i;
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- AudioInterleaveContext *aic = st->priv_data;
+ MXFContext *mxf = s->priv_data;
+ uint32_t seed = ff_random_get_seed();
+ uint64_t umid = seed + 0x5294713400000000LL;
- if (st->codec->codec_type == CODEC_TYPE_AUDIO)
- av_fifo_free(&aic->fifo);
- }
+ AV_WB64(mxf->umid , umid);
+ AV_WB64(mxf->umid+8, umid>>8);
+
+ mxf->instance_number = seed;
}
static int mxf_write_header(AVFormatContext *s)
uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
const int *samples_per_frame = NULL;
- if (s->nb_streams > 17) {
- av_log(s, AV_LOG_ERROR, "error, mxf muxer supports 17 tracks maximum\n");
+ if (!s->nb_streams)
return -1;
- }
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
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;
}
- mxf->edit_unit_start = st->index;
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;
}
- 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 (!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;
- 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);
+
+ if (!present[sc->index])
+ mxf->essence_container_count++;
+ present[sc->index]++;
+ }
+
+ if (s->oformat == &mxf_d10_muxer) {
+ mxf->essence_container_count = 1;
}
+ if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
+ mxf_gen_umid(s);
+
for (i = 0; i < s->nb_streams; i++) {
MXFStreamContext *sc = s->streams[i]->priv_data;
// update element count
sc->order = AV_RB32(sc->track_essence_element_key+12);
}
+ if (s->timestamp)
+ 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;
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(s, 1);
+}
+
+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_units_count % MXF_INDEX_CLUSTER_SIZE)) {
+ 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 + MXF_INDEX_CLUSTER_SIZE)*
- sizeof(*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)) {
+ 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) {
- mxf_write_partition(s, 1, 0, 0, header_open_partition_key, 1);
+ 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 == mxf->edit_unit_start) {
- mxf->index_entries[mxf->edit_units_count].offset = url_ftell(pb);
- mxf->index_entries[mxf->edit_units_count].slice_offset[st->index] = 0;
+ 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 {
- mxf->index_entries[mxf->edit_units_count-1].slice_offset[st->index] =
- url_ftell(pb) - mxf->index_entries[mxf->edit_units_count-1].offset;
+ } 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
- 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);
+ 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;
}
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);
+ klv_encode_ber_length(pb, 28 + 12*mxf->body_partitions_count);
- put_be32(pb, 1); // BodySID of header partition
+ 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);
{
MXFContext *mxf = s->priv_data;
ByteIOContext *pb = s->pb;
- unsigned index_byte_count =
- 109 + s->nb_streams*6 +
- mxf->edit_units_count*(11+(s->nb_streams-1)*4);
- // add encoded ber length
- index_byte_count += 16 +
- (index_byte_count < 128 ? 1 : (av_log2(index_byte_count) >> 3) + 2);
+ mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
+ mxf_write_klv_fill(s);
mxf->footer_partition_offset = url_ftell(pb);
- mxf_write_partition(s, 0, 2, index_byte_count, footer_partition_key, 0);
+ 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_index_table_segment(s);
+ 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);
- mxf_write_partition(s, 1, 0, 0, header_closed_partition_key, 1);
+ 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);
+ }
}
- ff_audio_interleave_close(s);
-
- mxf_free(s);
- return 0;
-}
-
-static int mxf_interleave_new_audio_packet(AVFormatContext *s, AVPacket *pkt,
- int stream_index, int flush)
-{
- AVStream *st = s->streams[stream_index];
- AudioInterleaveContext *aic = st->priv_data;
-
- int size = FFMIN(av_fifo_size(&aic->fifo), *aic->samples * aic->sample_size);
- if (!size || (!flush && size == av_fifo_size(&aic->fifo)))
- return 0;
+ put_flush_packet(pb);
- av_new_packet(pkt, size);
- av_fifo_read(&aic->fifo, pkt->data, size);
+ ff_audio_interleave_close(s);
- pkt->dts = pkt->pts = aic->dts;
- pkt->duration = av_rescale_q(*aic->samples, st->time_base, aic->time_base);
- pkt->stream_index = stream_index;
- aic->dts += pkt->duration;
+ av_freep(&mxf->index_entries);
+ av_freep(&mxf->body_partition_offset);
+ av_freep(&mxf->timecode_track->priv_data);
+ av_freep(&mxf->timecode_track);
- aic->samples++;
- if (!*aic->samples)
- aic->samples = aic->samples_per_frame;
+ mxf_free(s);
- return size;
+ return 0;
}
static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
if (stream_count && (s->nb_streams == stream_count || flush)) {
pktl = s->packet_buffer;
if (s->nb_streams != stream_count) {
- MXFContext *mxf = s->priv_data;
- AVPacketList *first = NULL;
- // find first packet in edit unit
+ AVPacketList *last = NULL;
+ // find last packet in edit unit
while (pktl) {
- AVStream *st = s->streams[pktl->pkt.stream_index];
- if (st->index == mxf->edit_unit_start)
+ if (!stream_count || pktl->pkt.stream_index == 0)
break;
- else if (!first)
- first = pktl;
+ last = pktl;
pktl = pktl->next;
+ stream_count--;
}
// purge packet queue
while (pktl) {
av_freep(&pktl);
pktl = next;
}
- if (!first)
+ if (last)
+ last->next = NULL;
+ else {
+ s->packet_buffer = NULL;
goto out;
- pktl = first;
+ }
+ pktl = s->packet_buffer;
}
*out = pktl->pkt;
static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
{
- int i;
-
- if (pkt) {
- AVStream *st = s->streams[pkt->stream_index];
- AudioInterleaveContext *aic = st->priv_data;
- if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- av_fifo_generic_write(&aic->fifo, pkt->data, pkt->size, NULL);
- } else {
- // rewrite pts and dts to be decoded time line position
- pkt->pts = pkt->dts = aic->dts;
- aic->dts += pkt->duration;
- ff_interleave_add_packet(s, pkt, mxf_compare_timestamps);
- }
- pkt = NULL;
- }
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st = s->streams[i];
- if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- AVPacket new_pkt;
- while (mxf_interleave_new_audio_packet(s, &new_pkt, i, flush))
- ff_interleave_add_packet(s, &new_pkt, mxf_compare_timestamps);
- }
- }
-
- return mxf_interleave_get_packet(s, out, pkt, 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"),
- NULL,
+ "application/mxf",
"mxf",
sizeof(MXFContext),
CODEC_ID_PCM_S16LE,
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,
+};
projects / frescor / ffmpeg.git / blobdiff