tests/api: use AVFrame.duration instead of AVFrame.pkt_duration

tests/api/api-h264-test.c

@@ -154,7 +154,7 @@ static int video_decode_example(const char *input_filename)
                 return number_of_written_bytes;
             }
             printf("%d, %s, %s, %8"PRId64", %8d, 0x%08"PRIx32"\n", video_stream,
-                   av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
+                   av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->duration,
                    number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));
 
             av_frame_unref(fr);

tests/api/api-seek-test.c

@@ -156,7 +156,7 @@ static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream,
             }
             av_frame_unref(fr);
         }
-    } while (result >= 0 && (no_seeking || (fr->pts + fr->pkt_duration <= ts_end)));
+    } while (result >= 0 && (no_seeking || (fr->pts + fr->duration <= ts_end)));
 
 finish:
     av_freep(&byte_buffer);