ref: 064740662b4b78775c62f610a84dc17969a1aabf
dir: /common/mp4ff/stsdtable.c/
#include "mp4ff.h"
int mp4ff_stsd_table_init(mp4ff_stsd_table_t *table)
{
int i;
table->format[0] = 'y';
table->format[1] = 'u';
table->format[2] = 'v';
table->format[3] = '2';
for(i = 0; i < 6; i++) table->reserved[i] = 0;
table->data_reference = 1;
table->version = 0;
table->revision = 0;
table->vendor[0] = 'l';
table->vendor[1] = 'n';
table->vendor[2] = 'u';
table->vendor[3] = 'x';
table->temporal_quality = 0;
table->spatial_quality = 258;
table->width = 0;
table->height = 0;
table->dpi_horizontal = 72;
table->dpi_vertical = 72;
table->data_size = 0;
table->frames_per_sample = 1;
for(i = 0; i < 32; i++) table->compressor_name[i] = 0;
sprintf(table->compressor_name, "Quicktime for Linux");
table->depth = 24;
table->gamma = 0;
table->fields = 0;
table->field_dominance = 1;
table->channels = 0;
table->sample_size = 0;
table->compression_id = 0;
table->packet_size = 0;
table->sample_rate = 0;
mp4ff_esds_init(&(table->esds));
}
int mp4ff_stsd_table_delete(mp4ff_stsd_table_t *table)
{
mp4ff_esds_delete(&(table->esds));
}
int mp4ff_stsd_table_dump(void *minf_ptr, mp4ff_stsd_table_t *table)
{
mp4ff_minf_t *minf = minf_ptr;
printf(" format %c%c%c%c\n", table->format[0], table->format[1], table->format[2], table->format[3]);
mp4ff_print_chars(" reserved ", table->reserved, 6);
printf(" data_reference %d\n", table->data_reference);
if(minf->is_audio) mp4ff_stsd_audio_dump(table);
if(minf->is_video) mp4ff_stsd_video_dump(table);
}
int mp4ff_stsd_audio_dump(mp4ff_stsd_table_t *table)
{
printf(" version %d\n", table->version);
printf(" revision %d\n", table->revision);
printf(" vendor %c%c%c%c\n", table->vendor[0], table->vendor[1], table->vendor[2], table->vendor[3]);
printf(" channels %d\n", table->channels);
printf(" sample_size %d\n", table->sample_size);
printf(" compression_id %d\n", table->compression_id);
printf(" packet_size %d\n", table->packet_size);
printf(" sample_rate %f\n", table->sample_rate);
mp4ff_esds_dump(&(table->esds));
}
int mp4ff_stsd_video_dump(mp4ff_stsd_table_t *table)
{
printf(" version %d\n", table->version);
printf(" revision %d\n", table->revision);
printf(" vendor %c%c%c%c\n", table->vendor[0], table->vendor[1], table->vendor[2], table->vendor[3]);
printf(" temporal_quality %ld\n", table->temporal_quality);
printf(" spatial_quality %ld\n", table->spatial_quality);
printf(" width %d\n", table->width);
printf(" height %d\n", table->height);
printf(" dpi_horizontal %f\n", table->dpi_horizontal);
printf(" dpi_vertical %f\n", table->dpi_vertical);
printf(" data_size %ld\n", table->data_size);
printf(" frames_per_sample %d\n", table->frames_per_sample);
printf(" compressor_name %s\n", table->compressor_name);
printf(" depth %d\n", table->depth);
printf(" gamma %f\n", table->gamma);
if(table->fields)
{
printf(" fields %d\n", table->fields);
printf(" field dominance %d\n", table->field_dominance);
}
mp4ff_esds_dump(&(table->esds));
}
int mp4ff_read_stsd_table(mp4ff_t *file, mp4ff_minf_t *minf, mp4ff_stsd_table_t *table)
{
mp4ff_atom_t leaf_atom;
mp4ff_atom_read_header(file, &leaf_atom);
table->format[0] = leaf_atom.type[0];
table->format[1] = leaf_atom.type[1];
table->format[2] = leaf_atom.type[2];
table->format[3] = leaf_atom.type[3];
mp4ff_read_data(file, table->reserved, 6);
table->data_reference = mp4ff_read_int16(file);
if(minf->is_audio) mp4ff_read_stsd_audio(file, table, &leaf_atom);
if(minf->is_video) mp4ff_read_stsd_video(file, table, &leaf_atom);
}
int mp4ff_write_stsd_table(mp4ff_t *file, mp4ff_minf_t *minf, mp4ff_stsd_table_t *table)
{
mp4ff_atom_t atom;
mp4ff_atom_write_header(file, &atom, table->format);
/*printf("mp4ff_write_stsd_table %c%c%c%c\n", table->format[0], table->format[1], table->format[2], table->format[3]); */
mp4ff_write_data(file, table->reserved, 6);
mp4ff_write_int16(file, table->data_reference);
if(minf->is_audio) mp4ff_write_stsd_audio(file, table);
if(minf->is_video) mp4ff_write_stsd_video(file, table);
mp4ff_atom_write_footer(file, &atom);
}
int mp4ff_read_stsd_audio(mp4ff_t *file, mp4ff_stsd_table_t *table, mp4ff_atom_t *parent_atom)
{
table->version = mp4ff_read_int16(file);
table->revision = mp4ff_read_int16(file);
mp4ff_read_data(file, table->vendor, 4);
table->channels = mp4ff_read_int16(file);
table->sample_size = mp4ff_read_int16(file);
table->compression_id = mp4ff_read_int16(file);
table->packet_size = mp4ff_read_int16(file);
table->sample_rate = mp4ff_read_fixed32(file);
while (mp4ff_position(file) < parent_atom->end) {
mp4ff_atom_t leaf_atom;
mp4ff_atom_read_header(file, &leaf_atom);
if(mp4ff_atom_is(&leaf_atom, "esds")) {
mp4ff_read_esds(file, &(table->esds));
mp4ff_atom_skip(file, &leaf_atom);
} else {
mp4ff_atom_skip(file, &leaf_atom);
}
}
}
int mp4ff_write_stsd_audio(mp4ff_t *file, mp4ff_stsd_table_t *table)
{
mp4ff_write_int32(file, 0);
mp4ff_write_int32(file, 0);
mp4ff_write_int16(file, 2);
mp4ff_write_int16(file, 16);
mp4ff_write_int32(file, 0);
mp4ff_write_int16(file, table->sample_rate);
mp4ff_write_int16(file, 0);
mp4ff_write_esds_audio(file, &(table->esds), file->atracks[0].track->tkhd.track_id);
}
int mp4ff_read_stsd_video(mp4ff_t *file, mp4ff_stsd_table_t *table, mp4ff_atom_t *parent_atom)
{
mp4ff_atom_t leaf_atom;
int len;
table->version = mp4ff_read_int16(file);
table->revision = mp4ff_read_int16(file);
mp4ff_read_data(file, table->vendor, 4);
table->temporal_quality = mp4ff_read_int32(file);
table->spatial_quality = mp4ff_read_int32(file);
table->width = mp4ff_read_int16(file);
table->height = mp4ff_read_int16(file);
table->dpi_horizontal = mp4ff_read_fixed32(file);
table->dpi_vertical = mp4ff_read_fixed32(file);
table->data_size = mp4ff_read_int32(file);
table->frames_per_sample = mp4ff_read_int16(file);
len = mp4ff_read_char(file);
mp4ff_read_data(file, table->compressor_name, 31);
table->depth = mp4ff_read_int16(file);
while(mp4ff_position(file) < parent_atom->end)
{
mp4ff_atom_read_header(file, &leaf_atom);
if(mp4ff_atom_is(&leaf_atom, "gama"))
{
table->gamma= mp4ff_read_fixed32(file);
}
else
if(mp4ff_atom_is(&leaf_atom, "fiel"))
{
table->fields = mp4ff_read_char(file);
table->field_dominance = mp4ff_read_char(file);
}
else
/* if(mp4ff_atom_is(&leaf_atom, "mjqt")) */
/* { */
/* mp4ff_read_mjqt(file, &(table->mjqt)); */
/* } */
/* else */
/* if(mp4ff_atom_is(&leaf_atom, "mjht")) */
/* { */
/* mp4ff_read_mjht(file, &(table->mjht)); */
/* } */
/* else */
if(mp4ff_atom_is(&leaf_atom, "esds"))
{
mp4ff_read_esds(file, &(table->esds));
mp4ff_atom_skip(file, &leaf_atom);
}
else
{
mp4ff_atom_skip(file, &leaf_atom);
}
}
}
int mp4ff_write_stsd_video(mp4ff_t *file, mp4ff_stsd_table_t *table)
{
int i;
for (i = 0; i < 4; i++) {
mp4ff_write_int32(file, 0);
}
mp4ff_write_int16(file, table->width);
mp4ff_write_int16(file, table->height);
mp4ff_write_int32(file, 0x00480000);
mp4ff_write_int32(file, 0x00480000);
mp4ff_write_int32(file, 0);
mp4ff_write_int16(file, 1);
for (i = 0; i < 32; i++) {
mp4ff_write_char(file, 0);
}
mp4ff_write_int16(file, 24);
mp4ff_write_int16(file, -1);
mp4ff_write_esds_video(file, &(table->esds), file->vtracks[0].track->tkhd.track_id);
if(table->fields)
{
mp4ff_atom_t atom;
mp4ff_atom_write_header(file, &atom, "fiel");
mp4ff_write_char(file, table->fields);
mp4ff_write_char(file, table->field_dominance);
mp4ff_atom_write_footer(file, &atom);
}
}