ref: c0ae72652fc9619e8b1e8f365ab977614179779a
dir: /common/mp4ff/stsd.c/
#include "mp4ff.h" int mp4ff_stsd_init(mp4ff_stsd_t *stsd) { stsd->version = 0; stsd->flags = 0; stsd->total_entries = 0; } int mp4ff_stsd_init_table(mp4ff_stsd_t *stsd) { if(!stsd->total_entries) { stsd->total_entries = 1; stsd->table = (mp4ff_stsd_table_t*)malloc(sizeof(mp4ff_stsd_table_t) * stsd->total_entries); mp4ff_stsd_table_init(&(stsd->table[0])); } } int mp4ff_stsd_init_video(mp4ff_t *file, mp4ff_stsd_t *stsd, int frame_w, int frame_h, float frame_rate, char *compression) { mp4ff_stsd_table_t *table; mp4ff_stsd_init_table(stsd); table = &(stsd->table[0]); mp4ff_copy_char32(table->format, compression); table->width = frame_w; table->height = frame_h; table->frames_per_sample = 1; table->depth = 24; } int mp4ff_stsd_init_audio(mp4ff_t *file, mp4ff_stsd_t *stsd, int channels, int sample_rate, int bits, char *compressor) { mp4ff_stsd_table_t *table; mp4ff_stsd_init_table(stsd); table = &(stsd->table[0]); mp4ff_copy_char32(table->format, compressor); table->channels = channels; table->sample_size = bits; table->sample_rate = sample_rate; } int mp4ff_stsd_delete(mp4ff_stsd_t *stsd) { int i; if(stsd->total_entries) { for(i = 0; i < stsd->total_entries; i++) mp4ff_stsd_table_delete(&(stsd->table[i])); free(stsd->table); } stsd->total_entries = 0; } int mp4ff_stsd_dump(void *minf_ptr, mp4ff_stsd_t *stsd) { int i; printf(" sample description\n"); printf(" version %d\n", stsd->version); printf(" flags %d\n", stsd->flags); printf(" total_entries %d\n", stsd->total_entries); for(i = 0; i < stsd->total_entries; i++) { mp4ff_stsd_table_dump(minf_ptr, &(stsd->table[i])); } } int mp4ff_read_stsd(mp4ff_t *file, mp4ff_minf_t *minf, mp4ff_stsd_t *stsd) { int i; mp4ff_atom_t leaf_atom; stsd->version = mp4ff_read_char(file); stsd->flags = mp4ff_read_int24(file); stsd->total_entries = mp4ff_read_int32(file); stsd->table = (mp4ff_stsd_table_t*)malloc(sizeof(mp4ff_stsd_table_t) * stsd->total_entries); for(i = 0; i < stsd->total_entries; i++) { mp4ff_stsd_table_init(&(stsd->table[i])); mp4ff_read_stsd_table(file, minf, &(stsd->table[i])); } } int mp4ff_write_stsd(mp4ff_t *file, mp4ff_minf_t *minf, mp4ff_stsd_t *stsd) { mp4ff_atom_t atom; int i; mp4ff_atom_write_header(file, &atom, "stsd"); mp4ff_write_char(file, stsd->version); mp4ff_write_int24(file, stsd->flags); mp4ff_write_int32(file, stsd->total_entries); for(i = 0; i < stsd->total_entries; i++) { mp4ff_write_stsd_table(file, minf, stsd->table); } mp4ff_atom_write_footer(file, &atom); }