}
static int parse_keyframes_index(AVFormatContext *s, AVIOContext *ioc, AVStream *vstream, int64_t max_pos) {
- unsigned int arraylen = 0, timeslen = 0, fileposlen = 0, i;
- double num_val;
+ unsigned int timeslen = 0, fileposlen = 0, i;
char str_val[256];
int64_t *times = NULL;
int64_t *filepositions = NULL;
int ret = 0;
while (avio_tell(ioc) < max_pos - 2 && amf_get_string(ioc, str_val, sizeof(str_val)) > 0) {
- int64_t* current_array;
+ int64_t** current_array;
+ unsigned int arraylen;
// Expect array object in context
if (avio_r8(ioc) != AMF_DATA_TYPE_ARRAY)
break;
arraylen = avio_rb32(ioc);
- /*
- * Expect only 'times' or 'filepositions' sub-arrays in other case refuse to use such metadata
- * for indexing
- */
- if (!strcmp(KEYFRAMES_TIMESTAMP_TAG, str_val) && !times) {
- if (!(times = av_mallocz(sizeof(*times) * arraylen))) {
- ret = AVERROR(ENOMEM);
- goto finish;
- }
- timeslen = arraylen;
- current_array = times;
- } else if (!strcmp(KEYFRAMES_BYTEOFFSET_TAG, str_val) && !filepositions) {
- if (!(filepositions = av_mallocz(sizeof(*filepositions) * arraylen))) {
- ret = AVERROR(ENOMEM);
- goto finish;
- }
- fileposlen = arraylen;
- current_array = filepositions;
- } else // unexpected metatag inside keyframes, will not use such metadata for indexing
+ if(arraylen>>28)
break;
+ if (!strcmp(KEYFRAMES_TIMESTAMP_TAG , str_val) && !times){
+ current_array= ×
+ timeslen= arraylen;
+ }else if (!strcmp(KEYFRAMES_BYTEOFFSET_TAG, str_val) && !filepositions){
+ current_array= &filepositions;
+ fileposlen= arraylen;
+ }else // unexpected metatag inside keyframes, will not use such metadata for indexing
+ break;
+
+ if (!(*current_array = av_mallocz(sizeof(**current_array) * arraylen))) {
+ ret = AVERROR(ENOMEM);
+ goto finish;
+ }
+
for (i = 0; i < arraylen && avio_tell(ioc) < max_pos - 1; i++) {
if (avio_r8(ioc) != AMF_DATA_TYPE_NUMBER)
goto finish;
- num_val = av_int2dbl(avio_rb64(ioc));
- current_array[i] = num_val;
+ current_array[0][i] = av_int2dbl(avio_rb64(ioc));
}
}
- if (timeslen == fileposlen)
- for(i = 0; i < arraylen; i++)
+ if (timeslen == fileposlen) {
+ for(i = 0; i < timeslen; i++)
av_add_index_entry(vstream, filepositions[i], times[i]*1000, 0, 0, AVINDEX_KEYFRAME);
- else
+ } else
av_log(s, AV_LOG_WARNING, "Invalid keyframes object, skipping.\n");
finish: