X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=aac_afh.c;h=e495bf1484c7b832ffba01a36f8e3718092f2153;hp=f679af29de6e54efe0d1fd6dbef94eab61314a30;hb=732db80493440d188963cea27d822447925ab5ad;hpb=d4776878609698ca63c99c3db711ae3edf038bba

diff --git a/aac_afh.c b/aac_afh.c
index f679af29..e495bf14 100644
--- a/aac_afh.c
+++ b/aac_afh.c
@@ -42,7 +42,7 @@ static int aac_find_stsz(unsigned char *buf, size_t buflen, off_t *skip)
 	return -E_STSZ;
 }
 
-static ssize_t aac_compute_chunk_table(struct afh_info *afi,
+static ssize_t aac_compute_chunk_table(struct afh_info *afhi,
 		unsigned char *map, size_t numbytes)
 {
 	int ret, i;
@@ -52,37 +52,37 @@ static ssize_t aac_compute_chunk_table(struct afh_info *afi,
 	ret = aac_find_stsz(map, numbytes, &skip);
 	if (ret < 0)
 		return ret;
-	afi->chunks_total = ret;
-	PARA_DEBUG_LOG("sz table has %lu entries\n", afi->chunks_total);
-	afi->chunk_table = para_malloc((afi->chunks_total + 1) * sizeof(size_t));
-	for (i = 1; i <= afi->chunks_total; i++) {
+	afhi->chunks_total = ret;
+	PARA_DEBUG_LOG("sz table has %lu entries\n", afhi->chunks_total);
+	afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * sizeof(size_t));
+	for (i = 1; i <= afhi->chunks_total; i++) {
 		if (skip + 4 > numbytes)
 			break;
 		sum += aac_read_int32(map + skip);
-		afi->chunk_table[i] = sum;
+		afhi->chunk_table[i] = sum;
 		skip += 4;
-//		if (i < 10 || i + 10 > afi->chunks_total)
-//			PARA_DEBUG_LOG("offset #%d: %zu\n", i, afi->chunk_table[i]);
+//		if (i < 10 || i + 10 > afhi->chunks_total)
+//			PARA_DEBUG_LOG("offset #%d: %zu\n", i, afhi->chunk_table[i]);
 	}
 	return skip;
 }
 
-static int aac_set_chunk_tv(struct afh_info *afi,
+static int aac_set_chunk_tv(struct afh_info *afhi,
 		mp4AudioSpecificConfig *mp4ASC, long unsigned *seconds)
 {
 	float tmp = mp4ASC->sbr_present_flag == 1? 2047 : 1023;
 	struct timeval total;
-	long unsigned ms = 1000.0 * afi->chunks_total * tmp
+	long unsigned ms = 1000.0 * afhi->chunks_total * tmp
 		/ mp4ASC->samplingFrequency;
 
 	if (!mp4ASC->samplingFrequency)
 		return -E_MP4ASC;
-	ms = 1000.0 * afi->chunks_total * tmp / mp4ASC->samplingFrequency;
+	ms = 1000.0 * afhi->chunks_total * tmp / mp4ASC->samplingFrequency;
 	ms2tv(ms, &total);
-	tv_divide(afi->chunks_total, &total, &afi->chunk_tv);
+	tv_divide(afhi->chunks_total, &total, &afhi->chunk_tv);
 	PARA_INFO_LOG("%luHz, %lus (%lu x %lums)\n",
 		mp4ASC->samplingFrequency, ms / 1000,
-		afi->chunks_total, tv2ms(&afi->chunk_tv));
+		afhi->chunks_total, tv2ms(&afhi->chunk_tv));
 	if (ms < 1000)
 		return -E_MP4ASC;
 	*seconds = ms / 1000;
@@ -93,7 +93,7 @@ static int aac_set_chunk_tv(struct afh_info *afi,
  * Init m4a file and write some tech data to given pointers.
  */
 static int aac_get_file_info(char *map, size_t numbytes,
-		struct afh_info *afi)
+		struct afh_info *afhi)
 {
 	int i;
 	size_t skip;
@@ -119,32 +119,32 @@ static int aac_get_file_info(char *map, size_t numbytes,
 		goto out;
 	if (!mp4ASC.samplingFrequency)
 		goto out;
-	ret = aac_compute_chunk_table(afi, umap, numbytes);
+	ret = aac_compute_chunk_table(afhi, umap, numbytes);
 	if (ret < 0)
 		goto out;
 	skip = ret;
-	ret = aac_set_chunk_tv(afi, &mp4ASC, &afi->seconds_total);
+	ret = aac_set_chunk_tv(afhi, &mp4ASC, &afhi->seconds_total);
 	if (ret < 0)
 		goto out;
 	ret = aac_find_entry_point(umap + skip, numbytes - skip, &skip);
 	if (ret < 0)
 		goto out;
-	afi->chunk_table[0] = ret;
-	for (i = 1; i<= afi->chunks_total; i++)
-		afi->chunk_table[i] += ret;
-	afi->channels = channels;
-	afi->frequency = rate;
-	ret = (afi->chunk_table[afi->chunks_total] - afi->chunk_table[0]) * 8; /* bits */
-	ret += (channels * afi->seconds_total * 500); /* avoid rounding error */
-	afi->bitrate = ret / (channels * afi->seconds_total * 1000);
-	sprintf(afi->info_string, "audio_file_info1:%lu x %lums, "
+	afhi->chunk_table[0] = ret;
+	for (i = 1; i<= afhi->chunks_total; i++)
+		afhi->chunk_table[i] += ret;
+	afhi->channels = channels;
+	afhi->frequency = rate;
+	ret = (afhi->chunk_table[afhi->chunks_total] - afhi->chunk_table[0]) * 8; /* bits */
+	ret += (channels * afhi->seconds_total * 500); /* avoid rounding error */
+	afhi->bitrate = ret / (channels * afhi->seconds_total * 1000);
+	sprintf(afhi->info_string, "audio_file_info1:%lu x %lums, "
 		"%uHz, %d channel%s, %ukb/s\n"
 		"audio_file_info2:\n"
 		"audio_file_info3:\n",
-		afi->chunks_total, tv2ms(&afi->chunk_tv),
-		afi->frequency, channels, channels == 1? "" : "s", afi->bitrate
+		afhi->chunks_total, tv2ms(&afhi->chunk_tv),
+		afhi->frequency, channels, channels == 1? "" : "s", afhi->bitrate
 	);
-	tv_scale(20, &afi->chunk_tv, &afi->eof_tv);
+	tv_scale(20, &afhi->chunk_tv, &afhi->eof_tv);
 	ret = 1;
 out:
 	if (handle)