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examples/filtering_video: Don't use stack packet

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-09-03 23:18:14 +02:00
parent a75f518b65
commit 86ec1093eb
1 changed files with 9 additions and 7 deletions
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16
doc/examples/filtering_video.c
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@ -210,7 +210,7 @@ static void display_frame(const AVFrame *frame, AVRational time_base)
int main(int argc, char **argv)
{
int ret;
AVPacket packet;
AVPacket *packet;
AVFrame *frame;
AVFrame *filt_frame;
@ -221,8 +221,9 @@ int main(int argc, char **argv)
frame = av_frame_alloc();
filt_frame = av_frame_alloc();
if (!frame || !filt_frame) {
perror("Could not allocate frame");
packet = av_packet_alloc();
if (!frame || !filt_frame || !packet) {
fprintf(stderr, "Could not allocate frame or packet\n");
exit(1);
}
@ -233,11 +234,11 @@ int main(int argc, char **argv)
/* read all packets */
while (1) {
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
if ((ret = av_read_frame(fmt_ctx, packet)) < 0)
break;
if (packet.stream_index == video_stream_index) {
ret = avcodec_send_packet(dec_ctx, &packet);
if (packet->stream_index == video_stream_index) {
ret = avcodec_send_packet(dec_ctx, packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error while sending a packet to the decoder\n");
break;
@ -273,7 +274,7 @@ int main(int argc, char **argv)
av_frame_unref(frame);
}
}
av_packet_unref(&packet);
av_packet_unref(packet);
}
end:
avfilter_graph_free(&filter_graph);
@ -281,6 +282,7 @@ end:
avformat_close_input(&fmt_ctx);
av_frame_free(&frame);
av_frame_free(&filt_frame);
av_packet_free(&packet);
if (ret < 0 && ret != AVERROR_EOF) {
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));