mp4: Assorted trivial cleanups.

[paraslash.git] / mp4.c

diff --git a/mp4.c b/mp4.c
index b12cbbf48c121c83c8b1bf40c92196fa5d051841..e60f18f59b1adc26350ae25055df7c822f6f174c 100644 (file)
--- a/mp4.c
+++ b/mp4.c
@@ -394,7 +394,6 @@ static int parse_tag(struct mp4 *f, uint8_t parent, int32_t size)
        tag = f->meta.tags + f->meta.count;
        tag->item = para_strdup(get_metadata_name(parent));
        tag->value = value;
-       tag->len = len;
        f->meta.count++;
        return 1;
 fail:
@@ -421,7 +420,7 @@ static int read_mdhd(struct mp4 *f)
                ret = read_int64(f, &t->duration);
                if (ret <= 0)
                        return ret;
-       } else { //version == 0
+       } else { /* version == 0 */
                uint32_t temp;
 
                skip_bytes(f, 8); /* creation time (4), modification time (4) */
@@ -438,7 +437,7 @@ static int read_mdhd(struct mp4 *f)
        return 1;
 }
 
-static int32_t read_ilst(struct mp4 *f, int32_t size)
+static int read_ilst(struct mp4 *f, int32_t size)
 {
        int ret;
        uint64_t sumsize = 0;
@@ -467,7 +466,7 @@ static int32_t read_ilst(struct mp4 *f, int32_t size)
        return 1;
 }
 
-static int32_t read_meta(struct mp4 *f, uint64_t size)
+static int read_meta(struct mp4 *f, uint64_t size)
 {
        int ret;
        uint64_t subsize, sumsize = 0;
@@ -567,6 +566,21 @@ static int parse_sub_atoms(struct mp4 *f, uint64_t total_size, bool meta_only)
        return 1;
 }
 
+void mp4_close(struct mp4 *f)
+{
+       free(f->track.stsz_table);
+       free(f->track.stts_sample_count);
+       free(f->track.stsc_first_chunk);
+       free(f->track.stsc_samples_per_chunk);
+       free(f->track.stco_chunk_offset);
+       for (uint32_t n = 0; n < f->meta.count; n++) {
+               free(f->meta.tags[n].item);
+               free(f->meta.tags[n].value);
+       }
+       free(f->meta.tags);
+       free(f);
+}
+
 static int open_file(const struct mp4_callback *cb, bool meta_only, struct mp4 **result)
 {
        int ret;
@@ -599,7 +613,7 @@ static int open_file(const struct mp4_callback *cb, bool meta_only, struct mp4 *
        return 1;
 fail:
        *result = NULL;
-       free(f);
+       mp4_close(f);
        return ret;
 }
 
@@ -622,21 +636,6 @@ fail:
        return ret;
 }
 
-void mp4_close(struct mp4 *f)
-{
-       free(f->track.stsz_table);
-       free(f->track.stts_sample_count);
-       free(f->track.stsc_first_chunk);
-       free(f->track.stsc_samples_per_chunk);
-       free(f->track.stco_chunk_offset);
-       for (uint32_t n = 0; n < f->meta.count; n++) {
-               free(f->meta.tags[n].item);
-               free(f->meta.tags[n].value);
-       }
-       free(f->meta.tags);
-       free(f);
-}
-
 static int32_t chunk_of_sample(const struct mp4 *f, int32_t sample,
                int32_t *chunk)
 {
@@ -710,7 +709,7 @@ int mp4_get_sample_size(const struct mp4 *f, uint32_t sample, uint32_t *result)
        return 1;
 }
 
-uint32_t mp4_get_sample_rate(const struct mp4 *f)
+uint16_t mp4_get_sample_rate(const struct mp4 *f)
 {
        return f->track.sample_rate;
 }
@@ -720,10 +719,10 @@ uint16_t mp4_get_channel_count(const struct mp4 *f)
        return f->track.channel_count;
 }
 
-int32_t mp4_num_samples(const struct mp4 *f)
+uint32_t mp4_num_samples(const struct mp4 *f)
 {
        const struct mp4_track *t = &f->track;
-       int32_t total = 0;
+       uint32_t total = 0;
 
        for (uint32_t n = 0; n < t->stts_entry_count; n++)
                total += t->stts_sample_count[n];
@@ -797,7 +796,7 @@ static void *modify_moov(struct mp4 *f, uint32_t *out_size)
 {
        int ret;
        uint64_t total_base = f->moov_offset + 8;
-       uint32_t total_size = (uint32_t) (f->moov_size - 8);
+       uint32_t total_size = f->moov_size - 8;
        uint32_t new_ilst_size = 0;
        void *out_buffer;
        uint8_t *p_out;