#include "string.h"
#include "mp4.h"
-struct mp4ff_track {
- int32_t type;
+struct mp4_track {
+ bool is_audio;
int32_t channelCount;
int32_t sampleSize;
uint16_t sampleRate;
- int32_t audioType;
/* stsd */
int32_t stsd_entry_count;
int32_t *ctts_sample_count;
int32_t *ctts_sample_offset;
- /* esde */
- uint8_t *decoderConfig;
- int32_t decoderConfigLen;
-
uint32_t maxBitrate;
uint32_t avgBitrate;
#define MAX_TRACKS 1024
-struct mp4ff {
+struct mp4 {
/* stream to read from */
- struct mp4ff_callback *stream;
+ struct mp4_callback *stream;
int64_t current_position;
uint64_t moov_offset;
int32_t total_tracks;
/* track data */
- struct mp4ff_track *track[MAX_TRACKS];
+ struct mp4_track *track[MAX_TRACKS];
/* metadata */
- struct mp4ff_metadata tags;
+ struct mp4_metadata tags;
};
-int32_t mp4ff_total_tracks(const struct mp4ff *f)
+int32_t mp4_total_tracks(const struct mp4 *f)
{
return f->total_tracks;
}
-static int32_t read_data(struct mp4ff *f, void *data, uint32_t size)
+static int32_t read_data(struct mp4 *f, void *data, uint32_t size)
{
int32_t result = 1;
return result;
}
-static uint64_t read_int64(struct mp4ff *f)
+static uint64_t read_int64(struct mp4 *f)
{
uint8_t data[8];
}
/* comnapre 2 atom names, returns 1 for equal, 0 for unequal */
-static int32_t atom_compare(const int8_t a1, const int8_t b1,
- const int8_t c1, const int8_t d1,
- const int8_t a2, const int8_t b2,
- const int8_t c2, const int8_t d2)
+static int32_t atom_compare(int8_t a1, int8_t b1, int8_t c1, int8_t d1,
+ int8_t a2, int8_t b2, int8_t c2, int8_t d2)
{
if (a1 == a2 && b1 == b2 && c1 == c2 && d1 == d2)
return 1;
return 0;
}
-enum tracks {
- TRACK_UNKNOWN = 0,
- TRACK_AUDIO = 1,
- TRACK_VIDEO = 2,
- TRACK_SYSTEM = 3
-};
-
enum atoms {
/* atoms with subatoms */
ATOM_MOOV = 1,
#define COPYRIGHT_SYMBOL ((int8_t)0xA9)
-static uint8_t atom_name_to_type(const int8_t a, const int8_t b,
- const int8_t c, const int8_t d)
+static uint8_t atom_name_to_type(int8_t a, int8_t b, int8_t c, int8_t d)
{
if (a == 'm') {
if (atom_compare(a, b, c, d, 'm', 'o', 'o', 'v'))
}
/* read atom header, return atom size, atom size is with header included */
-static uint64_t atom_read_header(struct mp4ff *f, uint8_t * atom_type,
+static uint64_t atom_read_header(struct mp4 *f, uint8_t * atom_type,
uint8_t * header_size)
{
uint64_t size;
return size;
}
-static int64_t get_position(const struct mp4ff *f)
+static int64_t get_position(const struct mp4 *f)
{
return f->current_position;
}
}
}
-static int32_t set_position(struct mp4ff *f, const int64_t position)
+static int32_t set_position(struct mp4 *f, int64_t position)
{
f->stream->seek(f->stream->user_data, position);
f->current_position = position;
return 0;
}
-static void track_add(struct mp4ff *f)
+static void track_add(struct mp4 *f)
{
f->total_tracks++;
f->error++;
return;
}
- f->track[f->total_tracks - 1] = para_calloc(sizeof(struct mp4ff_track));
+ f->track[f->total_tracks - 1] = para_calloc(sizeof(struct mp4_track));
}
-static uint8_t read_char(struct mp4ff *f)
+static uint8_t read_char(struct mp4 *f)
{
uint8_t output;
read_data(f, &output, 1);
return output;
}
-static uint32_t read_int24(struct mp4ff *f)
+static uint32_t read_int24(struct mp4 *f)
{
int8_t data[4];
return read_u24_be(data);
}
-static uint32_t read_int32(struct mp4ff *f)
+static uint32_t read_int32(struct mp4 *f)
{
int8_t data[4];
return read_u32_be(data);
}
-static int32_t read_stsz(struct mp4ff *f)
+static int32_t read_stsz(struct mp4 *f)
{
int32_t i;
- struct mp4ff_track *t;
+ struct mp4_track *t;
if (f->total_tracks == 0)
return f->error++;
return 0;
}
-static int32_t read_stts(struct mp4ff *f)
+static int32_t read_stts(struct mp4 *f)
{
int32_t i;
- struct mp4ff_track *t;
+ struct mp4_track *t;
/* CVE-2017-9223 */
if (f->total_tracks == 0)
return 1;
}
-static int32_t read_ctts(struct mp4ff *f)
+static int32_t read_ctts(struct mp4 *f)
{
int32_t i;
- struct mp4ff_track *t;
+ struct mp4_track *t;
if (f->total_tracks == 0)
return f->error++;
return 1;
}
-static int32_t read_stsc(struct mp4ff *f)
+static int32_t read_stsc(struct mp4 *f)
{
int32_t i;
- struct mp4ff_track *t;
+ struct mp4_track *t;
if (f->total_tracks == 0)
return f->error++;
return 0;
}
-static int32_t read_stco(struct mp4ff *f)
+static int32_t read_stco(struct mp4 *f)
{
int32_t i;
- struct mp4ff_track *t;
+ struct mp4_track *t;
if (f->total_tracks == 0)
return f->error++;
return 0;
}
-static uint16_t read_int16(struct mp4ff *f)
+static uint16_t read_int16(struct mp4 *f)
{
int8_t data[2];
return read_u16_be(data);
}
-static uint32_t read_mp4_descr_length(struct mp4ff *f)
-{
- uint8_t b;
- uint8_t numBytes = 0;
- uint32_t length = 0;
-
- do {
- b = read_char(f);
- numBytes++;
- length = (length << 7) | (b & 0x7F);
- } while ((b & 0x80) && numBytes < 4);
-
- return length;
-}
-static int32_t read_esds(struct mp4ff *f)
-{
- uint8_t tag;
- uint32_t temp;
- struct mp4ff_track *t;
-
- if (f->total_tracks == 0)
- return f->error++;
- t = f->track[f->total_tracks - 1];
- read_char(f); /* version */
- read_int24(f); /* flags */
- /* get and verify ES_DescrTag */
- tag = read_char(f);
- if (tag == 0x03) {
- /* read length */
- if (read_mp4_descr_length(f) < 5 + 15) {
- return 1;
- }
- /* skip 3 bytes */
- read_int24(f);
- } else {
- /* skip 2 bytes */
- read_int16(f);
- }
-
- /* get and verify DecoderConfigDescrTab */
- if (read_char(f) != 0x04) {
- return 1;
- }
-
- /* read length */
- temp = read_mp4_descr_length(f);
- if (temp < 13)
- return 1;
-
- t->audioType = read_char(f);
- read_int32(f); //0x15000414 ????
- t->maxBitrate = read_int32(f);
- t->avgBitrate = read_int32(f);
-
- /* get and verify DecSpecificInfoTag */
- if (read_char(f) != 0x05) {
- return 1;
- }
-
- /* read length */
- t->decoderConfigLen = read_mp4_descr_length(f);
- free(t->decoderConfig);
- t->decoderConfig = para_malloc(t->decoderConfigLen);
- read_data(f, t->decoderConfig, t->decoderConfigLen);
- /* will skip the remainder of the atom */
- return 0;
-}
-
-static int32_t read_mp4a(struct mp4ff *f)
+static int32_t read_mp4a(struct mp4 *f)
{
int32_t i;
uint8_t atom_type = 0;
uint8_t header_size = 0;
- struct mp4ff_track *t;
+ struct mp4_track *t;
if (f->total_tracks == 0)
return f->error++;
read_int16(f);
atom_read_header(f, &atom_type, &header_size);
- if (atom_type == ATOM_ESDS)
- read_esds(f);
return 0;
}
-static int32_t read_stsd(struct mp4ff *f)
+static int32_t read_stsd(struct mp4 *f)
{
int32_t i;
uint8_t header_size = 0;
- struct mp4ff_track *t;
+ struct mp4_track *t;
/* CVE-2017-9218 */
if (f->total_tracks == 0)
uint8_t atom_type = 0;
size = atom_read_header(f, &atom_type, &header_size);
skip += size;
-
- if (atom_type == ATOM_MP4A) {
- t->type = TRACK_AUDIO;
+ t->is_audio = atom_type == ATOM_MP4A;
+ if (t->is_audio)
read_mp4a(f);
- } else if (atom_type == ATOM_MP4V) {
- t->type = TRACK_VIDEO;
- } else if (atom_type == ATOM_MP4S) {
- t->type = TRACK_SYSTEM;
- } else {
- t->type = TRACK_UNKNOWN;
- }
set_position(f, skip);
}
return 0;
}
-static int32_t read_mvhd(struct mp4ff *f)
+static int32_t read_mvhd(struct mp4 *f)
{
int32_t i;
return 0;
}
-static int32_t tag_add_field(struct mp4ff_metadata *tags, const char *item,
+static int32_t tag_add_field(struct mp4_metadata *tags, const char *item,
const char *value, int32_t len)
{
- void *backup = (void *) tags->tags;
-
if (!item || (item && !*item) || !value)
return 0;
-
- tags->tags = (struct mp4ff_tag *)realloc(tags->tags,
- (tags->count + 1) * sizeof(struct mp4ff_tag));
- if (!tags->tags) {
- free(backup);
- return 0;
+ tags->tags = para_realloc(tags->tags,
+ (tags->count + 1) * sizeof(struct mp4_tag));
+ tags->tags[tags->count].item = para_strdup(item);
+ tags->tags[tags->count].len = len;
+ if (len >= 0) {
+ tags->tags[tags->count].value = para_malloc(len + 1);
+ memcpy(tags->tags[tags->count].value, value, len);
+ tags->tags[tags->count].value[len] = 0;
} else {
- tags->tags[tags->count].item = para_strdup(item);
- tags->tags[tags->count].len = len;
- if (len >= 0) {
- tags->tags[tags->count].value = para_malloc(len + 1);
- memcpy(tags->tags[tags->count].value, value, len);
- tags->tags[tags->count].value[len] = 0;
- } else {
- tags->tags[tags->count].value = para_strdup(value);
- }
- tags->count++;
- return 1;
+ tags->tags[tags->count].value = para_strdup(value);
}
+ tags->count++;
+ return 1;
}
static const char *ID3v1GenreList[] = {
}
}
-static char *read_string(struct mp4ff *f, uint32_t length)
+static char *read_string(struct mp4 *f, uint32_t length)
{
char *str = para_malloc(length + 1);
if ((uint32_t)read_data(f, str, length) != length) {
return str;
}
-static int32_t set_metadata_name(const uint8_t atom_type, char **name)
+static int32_t set_metadata_name(uint8_t atom_type, char **name)
{
static char *tag_names[] = {
"unknown", "title", "artist", "writer", "album",
return 0;
}
-static uint32_t min_body_size(const uint8_t atom_type)
+static uint32_t min_body_size(uint8_t atom_type)
{
switch(atom_type) {
case ATOM_GENRE2:
}
}
-static int32_t parse_tag(struct mp4ff *f, const uint8_t parent,
- const int32_t size)
+static int32_t parse_tag(struct mp4 *f, uint8_t parent, int32_t size)
{
uint8_t atom_type;
uint8_t header_size = 0;
return 1;
}
-static int32_t read_mdhd(struct mp4ff *f)
+static int32_t read_mdhd(struct mp4 *f)
{
uint32_t version;
- struct mp4ff_track *t;
+ struct mp4_track *t;
/* CVE-2017-9221 */
if (f->total_tracks == 0)
return 1;
}
-static int32_t parse_metadata(struct mp4ff *f, const int32_t size)
+static int32_t parse_metadata(struct mp4 *f, int32_t size)
{
uint64_t subsize, sumsize = 0;
uint8_t atom_type;
return 0;
}
-static int32_t read_meta(struct mp4ff *f, const uint64_t size)
+static int32_t read_meta(struct mp4 *f, uint64_t size)
{
uint64_t subsize, sumsize = 0;
uint8_t atom_type;
return 0;
}
-static int32_t atom_read(struct mp4ff *f, const int32_t size,
- const uint8_t atom_type)
+static int32_t atom_read(struct mp4 *f, int32_t size, uint8_t atom_type)
{
uint64_t dest_position = get_position(f) + size - 8;
if (atom_type == ATOM_STSZ) {
}
/* parse atoms that are sub atoms of other atoms */
-static int32_t parse_sub_atoms(struct mp4ff *f, const uint64_t total_size, int meta_only)
+static int32_t parse_sub_atoms(struct mp4 *f, uint64_t total_size, int meta_only)
{
uint64_t size;
uint8_t atom_type = 0;
}
/* parse root atoms */
-static int32_t parse_atoms(struct mp4ff *f, int meta_only)
+static int32_t parse_atoms(struct mp4 *f, int meta_only)
{
uint64_t size;
uint8_t atom_type = 0;
return 0;
}
-void mp4ff_get_decoder_config(const struct mp4ff *f, const int track,
- unsigned char **ppBuf, unsigned int *pBufSize)
-{
- if (track >= f->total_tracks) {
- *ppBuf = NULL;
- *pBufSize = 0;
- return;
- }
-
- if (f->track[track]->decoderConfig == NULL
- || f->track[track]->decoderConfigLen == 0) {
- *ppBuf = NULL;
- *pBufSize = 0;
- } else {
- *ppBuf = para_malloc(f->track[track]->decoderConfigLen);
- memcpy(*ppBuf, f->track[track]->decoderConfig,
- f->track[track]->decoderConfigLen);
- *pBufSize = f->track[track]->decoderConfigLen;
- }
-}
-
-struct mp4ff *mp4ff_open_read(struct mp4ff_callback *f)
+struct mp4 *mp4_open_read(struct mp4_callback *f)
{
- struct mp4ff *ff = para_calloc(sizeof(struct mp4ff));
+ struct mp4 *ff = para_calloc(sizeof(struct mp4));
ff->stream = f;
return ff;
}
-static int32_t tag_delete(struct mp4ff_metadata *tags)
+static int32_t tag_delete(struct mp4_metadata *tags)
{
uint32_t i;
return 0;
}
-void mp4ff_close(struct mp4ff *ff)
+void mp4_close(struct mp4 *ff)
{
int32_t i;
free(ff->track[i]->stsc_samples_per_chunk);
free(ff->track[i]->stsc_sample_desc_index);
free(ff->track[i]->stco_chunk_offset);
- free(ff->track[i]->decoderConfig);
free(ff->track[i]->ctts_sample_count);
free(ff->track[i]->ctts_sample_offset);
free(ff->track[i]);
free(ff);
}
-static int32_t chunk_of_sample(const struct mp4ff *f, const int32_t track,
- const int32_t sample, int32_t * chunk_sample, int32_t * chunk)
+static int32_t chunk_of_sample(const struct mp4 *f, int32_t track,
+ int32_t sample, int32_t *chunk_sample, int32_t *chunk)
{
int32_t total_entries = 0;
int32_t chunk2entry;
return 0;
}
-static int32_t chunk_to_offset(const struct mp4ff *f, const int32_t track,
- const int32_t chunk)
+static int32_t chunk_to_offset(const struct mp4 *f, int32_t track,
+ int32_t chunk)
{
- const struct mp4ff_track *p_track = f->track[track];
+ const struct mp4_track *p_track = f->track[track];
if (p_track->stco_entry_count && (chunk > p_track->stco_entry_count)) {
return p_track->stco_chunk_offset[p_track->stco_entry_count -
return 0;
}
-static int32_t sample_range_size(const struct mp4ff *f, const int32_t track,
- const int32_t chunk_sample, const int32_t sample)
+static int32_t sample_range_size(const struct mp4 *f, int32_t track,
+ int32_t chunk_sample, int32_t sample)
{
int32_t i, total;
- const struct mp4ff_track *p_track = f->track[track];
+ const struct mp4_track *p_track = f->track[track];
if (p_track->stsz_sample_size) {
return (sample - chunk_sample) * p_track->stsz_sample_size;
return total;
}
-static int32_t sample_to_offset(const struct mp4ff *f, const int32_t track,
- const int32_t sample)
+static int32_t sample_to_offset(const struct mp4 *f, int32_t track,
+ int32_t sample)
{
int32_t chunk, chunk_sample, chunk_offset1, chunk_offset2;
return chunk_offset2;
}
-void mp4ff_set_sample_position(struct mp4ff *f, const int32_t track,
- const int32_t sample)
+/**
+ * Return the number of milliseconds of the given track.
+ *
+ * \param f As returned by \ref mp4_open_read(), must not be NULL.
+ * \param track Between zero and the value returned by \ref mp4_total_tracks().
+ *
+ * The function returns zero if the audio file is of zero length or contains a
+ * corrupt track header.
+ */
+uint64_t mp4_get_duration(const struct mp4 *f, int32_t track)
+{
+ const struct mp4_track *t = f->track[track];
+
+ if (t->timeScale == 0)
+ return 0;
+ return t->duration * 1000 / t->timeScale;
+}
+
+/**
+ * Check whether the given track number corresponds to an audio track.
+ *
+ * \param f See \ref mp4_get_duration().
+ * \param track See \ref mp4_get_duration().
+ *
+ * Besides audio tracks, an mp4 file may contain video and system tracks. For
+ * those the function returns false.
+ */
+bool mp4_is_audio_track(const struct mp4 *f, int32_t track)
+{
+ return f->track[track]->is_audio;
+}
+
+void mp4_set_sample_position(struct mp4 *f, int32_t track, int32_t sample)
{
int32_t offset = sample_to_offset(f, track, sample);
set_position(f, offset);
}
-int32_t mp4ff_get_sample_size(const struct mp4ff *f, int track, int sample)
+int32_t mp4_get_sample_size(const struct mp4 *f, int track, int sample)
{
- const struct mp4ff_track *t = f->track[track];
+ const struct mp4_track *t = f->track[track];
if (t->stsz_sample_size != 0)
return t->stsz_sample_size;
return t->stsz_table[sample];
}
-uint32_t mp4ff_get_sample_rate(const struct mp4ff *f, const int32_t track)
+uint32_t mp4_get_sample_rate(const struct mp4 *f, int32_t track)
{
return f->track[track]->sampleRate;
}
-uint32_t mp4ff_get_channel_count(const struct mp4ff *f, const int32_t track)
+uint32_t mp4_get_channel_count(const struct mp4 *f, int32_t track)
{
return f->track[track]->channelCount;
}
-int32_t mp4ff_num_samples(const struct mp4ff *f, const int32_t track)
+int32_t mp4_num_samples(const struct mp4 *f, int32_t track)
{
int32_t i;
int32_t total = 0;
return total;
}
-struct mp4ff *mp4ff_open_read_metaonly(struct mp4ff_callback *f)
+struct mp4 *mp4_open_meta(struct mp4_callback *f)
{
- struct mp4ff *ff = para_calloc(sizeof(struct mp4ff));
+ struct mp4 *ff = para_calloc(sizeof(struct mp4));
ff->stream = f;
return ff;
}
-int32_t mp4ff_meta_get_num_items(const struct mp4ff *f)
+int32_t mp4_meta_get_num_items(const struct mp4 *f)
{
return f->tags.count;
}
-int32_t mp4ff_meta_get_by_index(const struct mp4ff *f, uint32_t index,
+int32_t mp4_meta_get_by_index(const struct mp4 *f, uint32_t index,
char **item, char **value)
{
if (index >= f->tags.count) {
}
}
-static uint32_t find_atom(struct mp4ff *f, uint64_t base, uint32_t size,
+static uint32_t find_atom(struct mp4 *f, uint64_t base, uint32_t size,
const char *name)
{
uint32_t remaining = size;
return 0;
}
-static uint32_t find_atom_v2(struct mp4ff *f, uint64_t base, uint32_t size,
+static uint32_t find_atom_v2(struct mp4 *f, uint64_t base, uint32_t size,
const char *name, uint32_t extraheaders, const char *name_inside)
{
uint64_t first_base = (uint64_t) (-1);
do {
buf->allocated <<= 1;
} while (dest_size > buf->allocated);
-
- {
- void *newptr = realloc(buf->data, buf->allocated);
- if (newptr == 0) {
- free(buf->data);
- buf->data = 0;
- buf->error = 1;
- return 0;
- }
- buf->data = newptr;
- }
+ buf->data = para_realloc(buf->data, buf->allocated);
}
if (ptr)
if (buf->error)
return 0;
-
- ret = realloc(buf->data, buf->written);
-
- if (ret == 0)
- free(buf->data);
-
+ ret = para_realloc(buf->data, buf->written);
buf->data = 0;
buf->error = 1;
-
return ret;
}
-static uint32_t create_ilst(const struct mp4ff_metadata *data, void **out_buffer,
+static uint32_t create_ilst(const struct mp4_metadata *data, void **out_buffer,
uint32_t * out_size)
{
struct membuffer *buf = membuffer_create();
const char *tracknumber_ptr = 0, *totaltracks_ptr = 0;
const char *discnumber_ptr = 0, *totaldiscs_ptr = 0;
const char *genre_ptr = 0, *tempo_ptr = 0;
+
for (metaptr = 0; metaptr < data->count; metaptr++) {
- struct mp4ff_tag *tag = &data->tags[metaptr];
- if (!strcasecmp(tag->item, "tracknumber") || !strcasecmp(tag->item, "track")) {
+ struct mp4_tag *tag = &data->tags[metaptr];
+ if (!strcasecmp(tag->item, "tracknumber")
+ || !strcasecmp(tag->item, "track")) {
if (tracknumber_ptr == 0)
tracknumber_ptr = tag->value;
mask[metaptr] = 1;
}
if (tracknumber_ptr)
- membuffer_write_track_tag(buf, "trkn",
- myatoi(tracknumber_ptr),
- myatoi(totaltracks_ptr));
+ membuffer_write_track_tag(buf, "trkn", myatoi(tracknumber_ptr),
+ myatoi(totaltracks_ptr));
if (discnumber_ptr)
- membuffer_write_track_tag(buf, "disk",
- myatoi(discnumber_ptr),
- myatoi(totaldiscs_ptr));
+ membuffer_write_track_tag(buf, "disk", myatoi(discnumber_ptr),
+ myatoi(totaldiscs_ptr));
if (tempo_ptr)
membuffer_write_int16_tag(buf, "tmpo", myatoi(tempo_ptr));
if (genre_ptr) {
uint32_t index = meta_genre_to_index(genre_ptr);
if (index == 0)
- membuffer_write_std_tag(buf, "©gen",
- genre_ptr);
+ membuffer_write_std_tag(buf, "©gen", genre_ptr);
else
membuffer_write_int16_tag(buf, "gnre", index);
}
for (metaptr = 0; metaptr < data->count; metaptr++) {
- if (!mask[metaptr]) {
- struct mp4ff_tag *tag = &data->tags[metaptr];
- const char *std_meta_atom = find_standard_meta(tag->item);
- if (std_meta_atom) {
- membuffer_write_std_tag(buf, std_meta_atom,
- tag->value);
- } else {
- membuffer_write_custom_tag(buf, tag->item,
- tag->value);
- }
- }
- }
+ struct mp4_tag *tag;
+ const char *std_meta_atom;
+ if (mask[metaptr])
+ continue;
+ tag = &data->tags[metaptr];
+ std_meta_atom = find_standard_meta(tag->item);
+ if (std_meta_atom)
+ membuffer_write_std_tag(buf, std_meta_atom, tag->value);
+ else
+ membuffer_write_custom_tag(buf, tag->item, tag->value);
+ }
free(mask);
if (membuffer_error(buf)) {
buf->error = 1;
}
-static unsigned membuffer_transfer_from_file(struct membuffer *buf, struct mp4ff *src,
+static unsigned membuffer_transfer_from_file(struct membuffer *buf, struct mp4 *src,
unsigned bytes)
{
unsigned oldsize;
return bytes;
}
-static uint32_t create_meta(const struct mp4ff_metadata *data, void **out_buffer,
+static uint32_t create_meta(const struct mp4_metadata *data, void **out_buffer,
uint32_t * out_size)
{
struct membuffer *buf;
return 1;
}
-static uint32_t create_udta(const struct mp4ff_metadata *data, void **out_buffer,
+static uint32_t create_udta(const struct mp4_metadata *data, void **out_buffer,
uint32_t * out_size)
{
struct membuffer *buf;
return read_u32_be(&src);
}
-static uint32_t modify_moov(struct mp4ff *f, const struct mp4ff_metadata *data,
+static uint32_t modify_moov(struct mp4 *f, const struct mp4_metadata *data,
void **out_buffer, uint32_t * out_size)
{
uint64_t total_base = f->moov_offset + 8;
return 1;
}
-static int32_t write_data(struct mp4ff *f, void *data, uint32_t size)
+static int32_t write_data(struct mp4 *f, void *data, uint32_t size)
{
int32_t result = 1;
return result;
}
-static int32_t write_int32(struct mp4ff *f, const uint32_t data)
+static int32_t write_int32(struct mp4 *f, uint32_t data)
{
int8_t temp[4];
write_u32_be(temp, data);
return write_data(f, temp, sizeof(temp));
}
-static int32_t truncate_stream(struct mp4ff *f)
+static int32_t truncate_stream(struct mp4 *f)
{
return f->stream->truncate(f->stream->user_data);
}
-int32_t mp4ff_meta_update(struct mp4ff_callback *f, const struct mp4ff_metadata *data)
+int32_t mp4_meta_update(struct mp4_callback *f, const struct mp4_metadata *data)
{
void *new_moov_data;
uint32_t new_moov_size;
- struct mp4ff *ff = para_calloc(sizeof(struct mp4ff));
+ struct mp4 *ff = para_calloc(sizeof(struct mp4));
ff->stream = f;
set_position(ff, 0);
parse_atoms(ff, 1);
if (!modify_moov(ff, data, &new_moov_data, &new_moov_size)) {
- mp4ff_close(ff);
+ mp4_close(ff);
return 0;
}
truncate_stream(ff);
- mp4ff_close(ff);
+ mp4_close(ff);
return 1;
}
/* find a metadata item by name */
/* returns 0 if item found, 1 if no such item */
-static int32_t meta_find_by_name(const struct mp4ff *f, const char *item,
+static int32_t meta_find_by_name(const struct mp4 *f, const char *item,
char **value)
{
uint32_t i;
return 0;
}
-int32_t mp4ff_meta_get_artist(const struct mp4ff *f, char **value)
+int32_t mp4_meta_get_artist(const struct mp4 *f, char **value)
{
return meta_find_by_name(f, "artist", value);
}
-int32_t mp4ff_meta_get_title(const struct mp4ff *f, char **value)
+int32_t mp4_meta_get_title(const struct mp4 *f, char **value)
{
return meta_find_by_name(f, "title", value);
}
-int32_t mp4ff_meta_get_date(const struct mp4ff *f, char **value)
+int32_t mp4_meta_get_date(const struct mp4 *f, char **value)
{
return meta_find_by_name(f, "date", value);
}
-int32_t mp4ff_meta_get_album(const struct mp4ff *f, char **value)
+int32_t mp4_meta_get_album(const struct mp4 *f, char **value)
{
return meta_find_by_name(f, "album", value);
}
-int32_t mp4ff_meta_get_comment(const struct mp4ff *f, char **value)
+int32_t mp4_meta_get_comment(const struct mp4 *f, char **value)
{
return meta_find_by_name(f, "comment", value);
}