149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
#include "mov-udta.h"
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#include "mov-ioutil.h"
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#include "mov-memory-buffer.h"
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#include "mov-internal.h"
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int mov_read_udta(struct mov_t* mov, const struct mov_box_t* box)
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{
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mov_buffer_skip(&mov->io, box->size);
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return mov_buffer_error(&mov->io);
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}
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size_t mov_write_udta(const struct mov_t* mov)
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{
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if (!mov->udta || mov->udta_size < 1)
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return 0;
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mov_buffer_w32(&mov->io, 8 + (uint32_t)mov->udta_size);
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mov_buffer_write(&mov->io, "udta", 4);
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mov_buffer_write(&mov->io, mov->udta, mov->udta_size);
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return 8 + (size_t)mov->udta_size;
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}
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int mov_udta_meta_write(const struct mov_udta_meta_t* meta, void* data, int bytes)
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{
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struct mov_ioutil_t w;
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struct mov_memory_buffer_t ptr;
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uint64_t pmeta, pilst, n;
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ptr.bytes = 0;
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ptr.maxsize = bytes;
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ptr.capacity = bytes;
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ptr.off = 0;
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ptr.ptr = (uint8_t*)data;
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memset(&w, 0, sizeof(w));
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memcpy(&w.io, mov_memory_buffer(), sizeof(w.io));
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w.param = &ptr;
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pmeta = mov_buffer_tell(&w);
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mov_buffer_w32(&w, 0); // placeholder
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mov_buffer_write(&w, "meta", 4);
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mov_buffer_w32(&w, 0); /* version & flags */
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mov_buffer_w32(&w, 33);
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mov_buffer_write(&w, "hdlr", 4);
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mov_buffer_w32(&w, 0); /* version & flags */
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mov_buffer_w32(&w, 0);
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mov_buffer_write(&w, "mdir", 4);
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mov_buffer_write(&w, "appl", 4);
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mov_buffer_w32(&w, 0);
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mov_buffer_w32(&w, 0);
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mov_buffer_w8(&w, 0);
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pilst = mov_buffer_tell(&w);
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mov_buffer_w32(&w, 0); // placeholder
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mov_buffer_write(&w, "ilst", 4);
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// write cover
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mov_buffer_w32(&w, meta->cover_size + 16 + 8);
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mov_buffer_write(&w, "covr", 4);
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mov_buffer_w32(&w, meta->cover_size + 16);
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mov_buffer_write(&w, "data", 4);
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mov_buffer_w32(&w, 0); // TODO track tag
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mov_buffer_w32(&w, 0);
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mov_buffer_write(&w, meta->cover, meta->cover_size);
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// update box size
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n = mov_buffer_tell(&w);
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mov_buffer_seek(&w, pilst);
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mov_buffer_w32(&w, (uint32_t)(n - pilst));
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mov_buffer_seek(&w, pmeta);
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mov_buffer_w32(&w, (uint32_t)(n - pmeta));
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mov_buffer_seek(&w, n); // rewind
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return (int)ptr.bytes;
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}
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int mov_udta_chapter_write(const struct mov_udta_chapter_t* chapters, int count, void* data, int bytes)
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{
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struct mov_ioutil_t w;
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struct mov_memory_buffer_t ptr;
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uint64_t pmeta, pilst, pchpl, n;
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int i;
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static const uint8_t ilst[] = { 0x00, 0x00, 0x00, 0x25, 0xa9, 0x74, 0x6f, 0x6f, 0x00, 0x00, 0x00, 0x1d, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x4c, 0x61, 0x76, 0x66, 0x36, 0x30, 0x2e, 0x32, 0x30, 0x2e, 0x31, 0x30, 0x30 };
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ptr.bytes = 0;
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ptr.maxsize = bytes;
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ptr.capacity = bytes;
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ptr.off = 0;
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ptr.ptr = (uint8_t*)data;
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memset(&w, 0, sizeof(w));
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memcpy(&w.io, mov_memory_buffer(), sizeof(w.io));
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w.param = &ptr;
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pmeta = mov_buffer_tell(&w);
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mov_buffer_w32(&w, 0); // placeholder
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mov_buffer_write(&w, "meta", 4);
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mov_buffer_w32(&w, 0); /* version & flags */
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mov_buffer_w32(&w, 33);
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mov_buffer_write(&w, "hdlr", 4);
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mov_buffer_w32(&w, 0); /* version & flags */
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mov_buffer_w32(&w, 0);
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mov_buffer_write(&w, "mdir", 4);
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mov_buffer_write(&w, "appl", 4);
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mov_buffer_w32(&w, 0);
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mov_buffer_w32(&w, 0);
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mov_buffer_w8(&w, 0);
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mov_buffer_w32(&w, 0x2d); // placeholder
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mov_buffer_write(&w, "ilst", 4);
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mov_buffer_write(&w, ilst, sizeof(ilst));
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// update meta box size
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n = mov_buffer_tell(&w);
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mov_buffer_seek(&w, pmeta);
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mov_buffer_w32(&w, (uint32_t)(n - pmeta));
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mov_buffer_seek(&w, n); // rewind
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pchpl = mov_buffer_tell(&w);
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mov_buffer_w32(&w, 0); // placeholder
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mov_buffer_write(&w, "chpl", 4);
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mov_buffer_w8(&w, 1); /* version */
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mov_buffer_w24(&w, 0); /* flags */
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mov_buffer_w32(&w, 0); /* unknown*/
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mov_buffer_w8(&w, (uint8_t)count);
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for (i = 0; i < count; i++)
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{
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mov_buffer_w64(&w, chapters[i].timestamp);
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if (chapters[i].title && *chapters[i].title && strlen(chapters[i].title) <= 255)
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{
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mov_buffer_w8(&w, (uint8_t)strlen(chapters[i].title));
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mov_buffer_write(&w, chapters[i].title, strlen(chapters[i].title));
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}
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else
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{
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mov_buffer_w8(&w, 0);
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}
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}
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// update chpl box size
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n = mov_buffer_tell(&w);
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mov_buffer_seek(&w, pchpl);
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mov_buffer_w32(&w, (uint32_t)(n - pchpl));
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mov_buffer_seek(&w, n); // rewind
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return (int)ptr.bytes;
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}
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