int quicktime_read_smhd(quicktime_t *file, quicktime_smhd_t *smhd)
{
smhd->version = quicktime_read_char(file);
smhd->flags = quicktime_read_int24(file);
smhd->balance = quicktime_read_int16(file);
smhd->reserved = quicktime_read_int16(file);
}
void quicktime_read_vmhd(quicktime_t *file, quicktime_vmhd_t *vmhd)
{
int i;
vmhd->version = quicktime_read_char(file);
vmhd->flags = quicktime_read_int24(file);
vmhd->graphics_mode = quicktime_read_int16(file);
for(i = 0; i < 3; i++)
vmhd->opcolor[i] = quicktime_read_int16(file);
}
void quicktime_read_mdhd(quicktime_t *file, quicktime_mdhd_t *mdhd)
{
mdhd->version = quicktime_read_char(file);
mdhd->flags = quicktime_read_int24(file);
mdhd->creation_time = quicktime_read_int32(file);
mdhd->modification_time = quicktime_read_int32(file);
mdhd->time_scale = quicktime_read_int32(file);
mdhd->duration = quicktime_read_int32(file);
mdhd->language = quicktime_read_int16(file);
mdhd->quality = quicktime_read_int16(file);
}
int quicktime_read_hmhd(quicktime_t *file, quicktime_hmhd_t *hmhd)
{
hmhd->version = quicktime_read_char(file);
hmhd->flags = quicktime_read_int24(file);
hmhd->maxPDUsize = quicktime_read_int16(file);
hmhd->avgPDUsize = quicktime_read_int16(file);
hmhd->maxbitrate = quicktime_read_int32(file);
hmhd->avgbitrate = quicktime_read_int32(file);
hmhd->slidingavgbitrate = quicktime_read_int32(file);
return 0;
}
int quicktime_read_tkhd(quicktime_t *file, quicktime_tkhd_t *tkhd)
{
tkhd->version = quicktime_read_char(file);
tkhd->flags = quicktime_read_int24(file);
tkhd->creation_time = quicktime_read_int32(file);
tkhd->modification_time = quicktime_read_int32(file);
tkhd->track_id = quicktime_read_int32(file);
tkhd->reserved1 = quicktime_read_int32(file);
tkhd->duration = quicktime_read_int32(file);
quicktime_read_data(file, tkhd->reserved2, 8);
tkhd->layer = quicktime_read_int16(file);
tkhd->alternate_group = quicktime_read_int16(file);
tkhd->volume = quicktime_read_fixed16(file);
tkhd->reserved3 = quicktime_read_int16(file);
quicktime_read_matrix(file, &(tkhd->matrix));
tkhd->track_width = quicktime_read_fixed32(file);
tkhd->track_height = quicktime_read_fixed32(file);
}
void quicktime_read_stsd_table(quicktime_t *file, quicktime_minf_t *minf, quicktime_stsd_table_t *table)
{
quicktime_atom_t leaf_atom;
quicktime_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];
quicktime_read_data(file, table->reserved, 6);
table->data_reference = quicktime_read_int16(file);
if(minf->is_audio) quicktime_read_stsd_audio(file, table, &leaf_atom);
if(minf->is_video) quicktime_read_stsd_video(file, table, &leaf_atom);
}
void quicktime_read_stsd_audio(quicktime_t *file,
quicktime_stsd_table_t *table,
quicktime_atom_t *parent_atom)
{
quicktime_atom_t leaf_atom;
table->version = quicktime_read_int16(file);
table->revision = quicktime_read_int16(file);
quicktime_read_data(file, table->vendor, 4);
table->channels = quicktime_read_int16(file);
table->sample_size = quicktime_read_int16(file);
table->compression_id = quicktime_read_int16(file);
table->packet_size = quicktime_read_int16(file);
table->sample_rate = quicktime_read_fixed32(file);
// Kluge for fixed32 limitation
if(table->sample_rate + 65536 == 96000 ||
table->sample_rate + 65536 == 88200) table->sample_rate += 65536;
// Version 1 fields
if(table->version > 0)
{
table->samples_per_packet = quicktime_read_int32(file);
table->bytes_per_packet = quicktime_read_int32(file);
table->bytes_per_frame = quicktime_read_int32(file);
table->bytes_per_sample = quicktime_read_int32(file);
// Skip another 20 bytes
if(table->version == 2)
{
quicktime_set_position(file, quicktime_position(file) + 0x14);
}
while(quicktime_position(file) < parent_atom->end)
{
quicktime_atom_read_header(file, &leaf_atom);
if(quicktime_atom_is(&leaf_atom, "wave"))
{
read_wave(file, table, &leaf_atom);
}
else
{
quicktime_atom_skip(file, &leaf_atom);
}
}
}
// FFMPEG says the esds sometimes contains a sample rate that overrides
// the sample table.
quicktime_esds_samplerate(table, &table->esds);
}
int quicktime_read_ctab(quicktime_t *file, quicktime_ctab_t *ctab)
{
int i;
ctab->seed = quicktime_read_int32(file);
ctab->flags = quicktime_read_int16(file);
ctab->size = quicktime_read_int16(file) + 1;
ctab->alpha = malloc(sizeof(int16_t) * ctab->size);
ctab->red = malloc(sizeof(int16_t) * ctab->size);
ctab->green = malloc(sizeof(int16_t) * ctab->size);
ctab->blue = malloc(sizeof(int16_t) * ctab->size);
for(i = 0; i < ctab->size; i++)
{
ctab->alpha[i] = quicktime_read_int16(file);
ctab->red[i] = quicktime_read_int16(file);
ctab->green[i] = quicktime_read_int16(file);
ctab->blue[i] = quicktime_read_int16(file);
}
return 0;
}
void quicktime_read_stsd_video(quicktime_t *file,
quicktime_stsd_table_t *table,
quicktime_atom_t *parent_atom)
{
quicktime_atom_t leaf_atom;
int len;
table->version = quicktime_read_int16(file);
table->revision = quicktime_read_int16(file);
quicktime_read_data(file, table->vendor, 4);
table->temporal_quality = quicktime_read_int32(file);
table->spatial_quality = quicktime_read_int32(file);
table->width = quicktime_read_int16(file);
table->height = quicktime_read_int16(file);
table->dpi_horizontal = quicktime_read_fixed32(file);
table->dpi_vertical = quicktime_read_fixed32(file);
table->data_size = quicktime_read_int32(file);
table->frames_per_sample = quicktime_read_int16(file);
len = quicktime_read_char(file);
quicktime_read_data(file, table->compressor_name, 31);
table->depth = quicktime_read_int16(file);
table->ctab_id = quicktime_read_int16(file);
/* The data needed for SVQ3 codec and maybe some others ? */
struct ImageDescription *id;
int stsd_size,fourcc,c,d;
stsd_size = parent_atom->end - parent_atom->start;
table->extradata_size = stsd_size - 4;
id = (struct ImageDescription *) malloc(table->extradata_size); // we do not include size
table->extradata = (char *) id;
memcpy(id->cType, table->format, 4); // Fourcc
id->version = table->version;
id->revisionLevel = table->revision;
memcpy(id->vendor, table->vendor, 4); // I think mplayer screws up on this one, it turns bytes around! :)
id->temporalQuality = table->temporal_quality;
id->spatialQuality = table->spatial_quality;
id->width = table->width;
id->height = table->height;
id->hRes = table->dpi_horizontal;
id->vRes = table->dpi_vertical;
id->dataSize = table->data_size;
id->frameCount = table->frames_per_sample;
id->name[0] = len;
memcpy(&(id->name[1]), table->compressor_name, 31);
id->depth = table->depth;
id->clutID = table->ctab_id;
if (quicktime_position(file) < parent_atom->end)
{
int position = quicktime_position(file); // remember position
int datalen = parent_atom->end - position;
quicktime_read_data(file, ((char*)&id->clutID)+2, datalen);
quicktime_set_position(file, position); // return to previous position so parsing can go on
}
while(quicktime_position(file) < parent_atom->end)
{
quicktime_atom_read_header(file, &leaf_atom);
/*
* printf("quicktime_read_stsd_video 1 %llx %llx %llx %s\n",
* leaf_atom.start, leaf_atom.end, quicktime_position(file),
* leaf_atom.type);
*/
if(quicktime_atom_is(&leaf_atom, "esds"))
{
quicktime_read_esds(file, &leaf_atom, &table->esds);
}
else
if(quicktime_atom_is(&leaf_atom, "avcC"))
{
quicktime_read_avcc(file, &leaf_atom, &table->avcc);
}
else
if(quicktime_atom_is(&leaf_atom, "ctab"))
{
quicktime_read_ctab(file, &(table->ctab));
}
else
if(quicktime_atom_is(&leaf_atom, "gama"))
{
table->gamma = quicktime_read_fixed32(file);
}
else
if(quicktime_atom_is(&leaf_atom, "fiel"))
{
table->fields = quicktime_read_char(file);
table->field_dominance = quicktime_read_char(file);
}
else
quicktime_atom_skip(file, &leaf_atom);
/* if(quicktime_atom_is(&leaf_atom, "mjqt")) */
/* { */
/* quicktime_read_mjqt(file, &(table->mjqt)); */
/* } */
/* else */
/* if(quicktime_atom_is(&leaf_atom, "mjht")) */
/* { */
/* quicktime_read_mjht(file, &(table->mjht)); */
/* } */
/* else */
}
//printf("quicktime_read_stsd_video 2\n");
}
void quicktime_read_stsd_video(quicktime_t *file,
quicktime_stsd_table_t *table,
quicktime_atom_t *parent_atom)
{
quicktime_atom_t leaf_atom;
int len;
table->version = quicktime_read_int16(file);
table->revision = quicktime_read_int16(file);
quicktime_read_data(file, table->vendor, 4);
table->temporal_quality = quicktime_read_int32(file);
table->spatial_quality = quicktime_read_int32(file);
table->width = quicktime_read_int16(file);
table->height = quicktime_read_int16(file);
table->dpi_horizontal = quicktime_read_fixed32(file);
table->dpi_vertical = quicktime_read_fixed32(file);
table->data_size = quicktime_read_int32(file);
table->frames_per_sample = quicktime_read_int16(file);
len = quicktime_read_char(file);
quicktime_read_data(file, table->compressor_name, 31);
table->depth = quicktime_read_int16(file);
table->ctab_id = quicktime_read_int16(file);
while(quicktime_position(file) < parent_atom->end)
{
quicktime_atom_read_header(file, &leaf_atom);
/*
* printf("quicktime_read_stsd_video 1 %llx %llx %llx %s\n",
* leaf_atom.start, leaf_atom.end, quicktime_position(file),
* leaf_atom.type);
*/
if(quicktime_atom_is(&leaf_atom, "esds"))
{
quicktime_read_esds(file, &leaf_atom, &table->esds);
}
else if(quicktime_atom_is(&leaf_atom, "avcC"))
{
quicktime_read_avcc(file, &leaf_atom, &table->avcc);
}
else if(quicktime_atom_is(&leaf_atom, "ctab"))
{
quicktime_read_ctab(file, &(table->ctab));
}
else if(quicktime_atom_is(&leaf_atom, "gama"))
{
table->gamma = quicktime_read_fixed32(file);
}
else if(quicktime_atom_is(&leaf_atom, "fiel"))
{
table->fields = quicktime_read_char(file);
table->field_dominance = quicktime_read_char(file);
}
else
quicktime_atom_skip(file, &leaf_atom);
/* if(quicktime_atom_is(&leaf_atom, "mjqt")) */
/* { */
/* quicktime_read_mjqt(file, &(table->mjqt)); */
/* } */
/* else */
/* if(quicktime_atom_is(&leaf_atom, "mjht")) */
/* { */
/* quicktime_read_mjht(file, &(table->mjht)); */
/* } */
/* else */
}
//printf("quicktime_read_stsd_video 2\n");
}
