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ffprobe: fix crash happening because of new streams occuring

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Fix trac ticket #3603.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
This commit is contained in:
Anshul 2014-05-14 22:21:58 +05:30 committed by Stefano Sabatini
parent f1793fe9cd
commit 73a6063314
1 changed files with 19 additions and 3 deletions
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22
ffprobe.c
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@ -191,6 +191,7 @@ static const char unit_hertz_str[] = "Hz" ;
static const char unit_byte_str[] = "byte" ;
static const char unit_bit_per_second_str[] = "bit/s";
static int nb_streams;
static uint64_t *nb_streams_packets;
static uint64_t *nb_streams_frames;
static int *selected_streams;
@ -1632,6 +1633,14 @@ static void writer_register_all(void)
#define print_section_header(s) writer_print_section_header(w, s)
#define print_section_footer(s) writer_print_section_footer(w, s)
#define REALLOCZ_ARRAY_STREAM(ptr, cur_n, new_n) \
{ \
ret = av_reallocp_array(&(ptr), (new_n), sizeof(*(ptr))); \
if (ret < 0) \
goto end; \
memset( (ptr) + (cur_n), 0, ((new_n) - (cur_n)) * sizeof(*(ptr)) ); \
}
static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
{
AVDictionaryEntry *tag = NULL;
@ -1893,6 +1902,12 @@ static int read_interval_packets(WriterContext *w, AVFormatContext *fmt_ctx,
goto end;
}
while (!av_read_frame(fmt_ctx, &pkt)) {
if (fmt_ctx->nb_streams > nb_streams) {
REALLOCZ_ARRAY_STREAM(nb_streams_frames, nb_streams, fmt_ctx->nb_streams);
REALLOCZ_ARRAY_STREAM(nb_streams_packets, nb_streams, fmt_ctx->nb_streams);
REALLOCZ_ARRAY_STREAM(selected_streams, nb_streams, fmt_ctx->nb_streams);
nb_streams = fmt_ctx->nb_streams;
}
if (selected_streams[pkt.stream_index]) {
AVRational tb = fmt_ctx->streams[pkt.stream_index]->time_base;
@ -2374,9 +2389,10 @@ static int probe_file(WriterContext *wctx, const char *filename)
#define CHECK_END if (ret < 0) goto end
nb_streams_frames = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_frames));
nb_streams_packets = av_calloc(fmt_ctx->nb_streams, sizeof(*nb_streams_packets));
selected_streams = av_calloc(fmt_ctx->nb_streams, sizeof(*selected_streams));
nb_streams = fmt_ctx->nb_streams;
REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,fmt_ctx->nb_streams);
REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,fmt_ctx->nb_streams);
REALLOCZ_ARRAY_STREAM(selected_streams,0,fmt_ctx->nb_streams);
for (i = 0; i < fmt_ctx->nb_streams; i++) {
if (stream_specifier) {